* [PATCH v4 01/10] SCSI: esas2r: Add main header file
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
@ 2013-08-23 14:35 ` Bradley Grove
2013-08-23 14:35 ` [PATCH v4 02/10] SCSI: esas2r: Add main file Bradley Grove
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Bradley Grove @ 2013-08-23 14:35 UTC (permalink / raw)
To: linux-scsi, jbottomley; +Cc: jseba, Bradley Grove
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
drivers/scsi/esas2r/esas2r.h | 1441 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 1441 insertions(+)
create mode 100644 drivers/scsi/esas2r/esas2r.h
diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h
new file mode 100644
index 0000000..0838e26
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r.h
@@ -0,0 +1,1441 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r.h
+ * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/proc_fs.h>
+#include <linux/workqueue.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/vmalloc.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_tcq.h>
+
+#include "esas2r_log.h"
+#include "atioctl.h"
+#include "atvda.h"
+
+#ifndef ESAS2R_H
+#define ESAS2R_H
+
+/* Global Variables */
+extern struct esas2r_adapter *esas2r_adapters[];
+extern u8 *esas2r_buffered_ioctl;
+extern dma_addr_t esas2r_buffered_ioctl_addr;
+extern u32 esas2r_buffered_ioctl_size;
+extern struct pci_dev *esas2r_buffered_ioctl_pcid;
+#define SGL_PG_SZ_MIN 64
+#define SGL_PG_SZ_MAX 1024
+extern int sgl_page_size;
+#define NUM_SGL_MIN 8
+#define NUM_SGL_MAX 2048
+extern int num_sg_lists;
+#define NUM_REQ_MIN 4
+#define NUM_REQ_MAX 256
+extern int num_requests;
+#define NUM_AE_MIN 2
+#define NUM_AE_MAX 8
+extern int num_ae_requests;
+extern int cmd_per_lun;
+extern int can_queue;
+extern int esas2r_max_sectors;
+extern int sg_tablesize;
+extern int interrupt_mode;
+extern int num_io_requests;
+
+/* Macro defintions */
+#define ESAS2R_MAX_ID 255
+#define MAX_ADAPTERS 32
+#define ESAS2R_DRVR_NAME "esas2r"
+#define ESAS2R_LONGNAME "ATTO ExpressSAS 6GB RAID Adapter"
+#define ESAS2R_MAX_DEVICES 32
+#define ATTONODE_NAME "ATTONode"
+#define ESAS2R_MAJOR_REV 1
+#define ESAS2R_MINOR_REV 00
+#define ESAS2R_VERSION_STR DEFINED_NUM_TO_STR(ESAS2R_MAJOR_REV) "." \
+ DEFINED_NUM_TO_STR(ESAS2R_MINOR_REV)
+#define ESAS2R_COPYRIGHT_YEARS "2001-2013"
+#define ESAS2R_DEFAULT_SGL_PAGE_SIZE 384
+#define ESAS2R_DEFAULT_CMD_PER_LUN 64
+#define ESAS2R_DEFAULT_NUM_SG_LISTS 1024
+#define DEFINED_NUM_TO_STR(num) NUM_TO_STR(num)
+#define NUM_TO_STR(num) #num
+
+#define ESAS2R_SGL_ALIGN 16
+#define ESAS2R_LIST_ALIGN 16
+#define ESAS2R_LIST_EXTRA ESAS2R_NUM_EXTRA
+#define ESAS2R_DATA_BUF_LEN 256
+#define ESAS2R_DEFAULT_TMO 5000
+#define ESAS2R_DISC_BUF_LEN 512
+#define ESAS2R_FWCOREDUMP_SZ 0x80000
+#define ESAS2R_NUM_PHYS 8
+#define ESAS2R_TARG_ID_INV 0xFFFF
+#define ESAS2R_INT_STS_MASK MU_INTSTAT_MASK
+#define ESAS2R_INT_ENB_MASK MU_INTSTAT_MASK
+#define ESAS2R_INT_DIS_MASK 0
+#define ESAS2R_MAX_TARGETS 256
+#define ESAS2R_KOBJ_NAME_LEN 20
+
+/* u16 (WORD) component macros */
+#define LOBYTE(w) ((u8)(u16)(w))
+#define HIBYTE(w) ((u8)(((u16)(w)) >> 8))
+#define MAKEWORD(lo, hi) ((u16)((u8)(lo) | ((u16)(u8)(hi) << 8)))
+
+/* u32 (DWORD) component macros */
+#define LOWORD(d) ((u16)(u32)(d))
+#define HIWORD(d) ((u16)(((u32)(d)) >> 16))
+#define MAKEDWORD(lo, hi) ((u32)((u16)(lo) | ((u32)(u16)(hi) << 16)))
+
+/* macro to get the lowest nonzero bit of a value */
+#define LOBIT(x) ((x) & (0 - (x)))
+
+/* These functions are provided to access the chip's control registers.
+ * The register is specified by its byte offset from the register base
+ * for the adapter.
+ */
+#define esas2r_read_register_dword(a, reg) \
+ readl((void __iomem *)a->regs + (reg) + MW_REG_OFFSET_HWREG)
+
+#define esas2r_write_register_dword(a, reg, data) \
+ writel(data, (void __iomem *)(a->regs + (reg) + MW_REG_OFFSET_HWREG))
+
+#define esas2r_flush_register_dword(a, r) esas2r_read_register_dword(a, r)
+
+/* This function is provided to access the chip's data window. The
+ * register is specified by its byte offset from the window base
+ * for the adapter.
+ */
+#define esas2r_read_data_byte(a, reg) \
+ readb((void __iomem *)a->data_window + (reg))
+
+/* ATTO vendor and device Ids */
+#define ATTO_VENDOR_ID 0x117C
+#define ATTO_DID_INTEL_IOP348 0x002C
+#define ATTO_DID_MV_88RC9580 0x0049
+#define ATTO_DID_MV_88RC9580TS 0x0066
+#define ATTO_DID_MV_88RC9580TSE 0x0067
+#define ATTO_DID_MV_88RC9580TL 0x0068
+
+/* ATTO subsystem device Ids */
+#define ATTO_SSDID_TBT 0x4000
+#define ATTO_TSSC_3808 0x4066
+#define ATTO_TSSC_3808E 0x4067
+#define ATTO_TLSH_1068 0x4068
+#define ATTO_ESAS_R680 0x0049
+#define ATTO_ESAS_R608 0x004A
+#define ATTO_ESAS_R60F 0x004B
+#define ATTO_ESAS_R6F0 0x004C
+#define ATTO_ESAS_R644 0x004D
+#define ATTO_ESAS_R648 0x004E
+
+/*
+ * flash definitions & structures
+ * define the code types
+ */
+#define FBT_CPYR 0xAA00
+#define FBT_SETUP 0xAA02
+#define FBT_FLASH_VER 0xAA04
+
+/* offsets to various locations in flash */
+#define FLS_OFFSET_BOOT (u32)(0x00700000)
+#define FLS_OFFSET_NVR (u32)(0x007C0000)
+#define FLS_OFFSET_CPYR FLS_OFFSET_NVR
+#define FLS_LENGTH_BOOT (FLS_OFFSET_CPYR - FLS_OFFSET_BOOT)
+#define FLS_BLOCK_SIZE (u32)(0x00020000)
+#define FI_NVR_2KB 0x0800
+#define FI_NVR_8KB 0x2000
+#define FM_BUF_SZ 0x800
+
+/*
+ * marvell frey (88R9580) register definitions
+ * chip revision identifiers
+ */
+#define MVR_FREY_B2 0xB2
+
+/*
+ * memory window definitions. window 0 is the data window with definitions
+ * of MW_DATA_XXX. window 1 is the register window with definitions of
+ * MW_REG_XXX.
+ */
+#define MW_REG_WINDOW_SIZE (u32)(0x00040000)
+#define MW_REG_OFFSET_HWREG (u32)(0x00000000)
+#define MW_REG_OFFSET_PCI (u32)(0x00008000)
+#define MW_REG_PCI_HWREG_DELTA (MW_REG_OFFSET_PCI - MW_REG_OFFSET_HWREG)
+#define MW_DATA_WINDOW_SIZE (u32)(0x00020000)
+#define MW_DATA_ADDR_SER_FLASH (u32)(0xEC000000)
+#define MW_DATA_ADDR_SRAM (u32)(0xF4000000)
+#define MW_DATA_ADDR_PAR_FLASH (u32)(0xFC000000)
+
+/*
+ * the following registers are for the communication
+ * list interface (AKA message unit (MU))
+ */
+#define MU_IN_LIST_ADDR_LO (u32)(0x00004000)
+#define MU_IN_LIST_ADDR_HI (u32)(0x00004004)
+
+#define MU_IN_LIST_WRITE (u32)(0x00004018)
+ #define MU_ILW_TOGGLE (u32)(0x00004000)
+
+#define MU_IN_LIST_READ (u32)(0x0000401C)
+ #define MU_ILR_TOGGLE (u32)(0x00004000)
+ #define MU_ILIC_LIST (u32)(0x0000000F)
+ #define MU_ILIC_LIST_F0 (u32)(0x00000000)
+ #define MU_ILIC_DEST (u32)(0x00000F00)
+ #define MU_ILIC_DEST_DDR (u32)(0x00000200)
+#define MU_IN_LIST_IFC_CONFIG (u32)(0x00004028)
+
+#define MU_IN_LIST_CONFIG (u32)(0x0000402C)
+ #define MU_ILC_ENABLE (u32)(0x00000001)
+ #define MU_ILC_ENTRY_MASK (u32)(0x000000F0)
+ #define MU_ILC_ENTRY_4_DW (u32)(0x00000020)
+ #define MU_ILC_DYNAMIC_SRC (u32)(0x00008000)
+ #define MU_ILC_NUMBER_MASK (u32)(0x7FFF0000)
+ #define MU_ILC_NUMBER_SHIFT 16
+
+#define MU_OUT_LIST_ADDR_LO (u32)(0x00004050)
+#define MU_OUT_LIST_ADDR_HI (u32)(0x00004054)
+
+#define MU_OUT_LIST_COPY_PTR_LO (u32)(0x00004058)
+#define MU_OUT_LIST_COPY_PTR_HI (u32)(0x0000405C)
+
+#define MU_OUT_LIST_WRITE (u32)(0x00004068)
+ #define MU_OLW_TOGGLE (u32)(0x00004000)
+
+#define MU_OUT_LIST_COPY (u32)(0x0000406C)
+ #define MU_OLC_TOGGLE (u32)(0x00004000)
+ #define MU_OLC_WRT_PTR (u32)(0x00003FFF)
+
+#define MU_OUT_LIST_IFC_CONFIG (u32)(0x00004078)
+ #define MU_OLIC_LIST (u32)(0x0000000F)
+ #define MU_OLIC_LIST_F0 (u32)(0x00000000)
+ #define MU_OLIC_SOURCE (u32)(0x00000F00)
+ #define MU_OLIC_SOURCE_DDR (u32)(0x00000200)
+
+#define MU_OUT_LIST_CONFIG (u32)(0x0000407C)
+ #define MU_OLC_ENABLE (u32)(0x00000001)
+ #define MU_OLC_ENTRY_MASK (u32)(0x000000F0)
+ #define MU_OLC_ENTRY_4_DW (u32)(0x00000020)
+ #define MU_OLC_NUMBER_MASK (u32)(0x7FFF0000)
+ #define MU_OLC_NUMBER_SHIFT 16
+
+#define MU_OUT_LIST_INT_STAT (u32)(0x00004088)
+ #define MU_OLIS_INT (u32)(0x00000001)
+
+#define MU_OUT_LIST_INT_MASK (u32)(0x0000408C)
+ #define MU_OLIS_MASK (u32)(0x00000001)
+
+/*
+ * the maximum size of the communication lists is two greater than the
+ * maximum amount of VDA requests. the extra are to prevent queue overflow.
+ */
+#define ESAS2R_MAX_NUM_REQS 256
+#define ESAS2R_NUM_EXTRA 2
+#define ESAS2R_MAX_COMM_LIST_SIZE (ESAS2R_MAX_NUM_REQS + ESAS2R_NUM_EXTRA)
+
+/*
+ * the following registers are for the CPU interface
+ */
+#define MU_CTL_STATUS_IN (u32)(0x00010108)
+ #define MU_CTL_IN_FULL_RST (u32)(0x00000020)
+#define MU_CTL_STATUS_IN_B2 (u32)(0x00010130)
+ #define MU_CTL_IN_FULL_RST2 (u32)(0x80000000)
+#define MU_DOORBELL_IN (u32)(0x00010460)
+ #define DRBL_RESET_BUS (u32)(0x00000002)
+ #define DRBL_PAUSE_AE (u32)(0x00000004)
+ #define DRBL_RESUME_AE (u32)(0x00000008)
+ #define DRBL_MSG_IFC_DOWN (u32)(0x00000010)
+ #define DRBL_FLASH_REQ (u32)(0x00000020)
+ #define DRBL_FLASH_DONE (u32)(0x00000040)
+ #define DRBL_FORCE_INT (u32)(0x00000080)
+ #define DRBL_MSG_IFC_INIT (u32)(0x00000100)
+ #define DRBL_POWER_DOWN (u32)(0x00000200)
+ #define DRBL_DRV_VER_1 (u32)(0x00010000)
+ #define DRBL_DRV_VER DRBL_DRV_VER_1
+#define MU_DOORBELL_IN_ENB (u32)(0x00010464)
+#define MU_DOORBELL_OUT (u32)(0x00010480)
+ #define DRBL_PANIC_REASON_MASK (u32)(0x00F00000)
+ #define DRBL_UNUSED_HANDLER (u32)(0x00100000)
+ #define DRBL_UNDEF_INSTR (u32)(0x00200000)
+ #define DRBL_PREFETCH_ABORT (u32)(0x00300000)
+ #define DRBL_DATA_ABORT (u32)(0x00400000)
+ #define DRBL_JUMP_TO_ZERO (u32)(0x00500000)
+ #define DRBL_FW_RESET (u32)(0x00080000)
+ #define DRBL_FW_VER_MSK (u32)(0x00070000)
+ #define DRBL_FW_VER_0 (u32)(0x00000000)
+ #define DRBL_FW_VER_1 (u32)(0x00010000)
+ #define DRBL_FW_VER DRBL_FW_VER_1
+#define MU_DOORBELL_OUT_ENB (u32)(0x00010484)
+ #define DRBL_ENB_MASK (u32)(0x00F803FF)
+#define MU_INT_STATUS_OUT (u32)(0x00010200)
+ #define MU_INTSTAT_POST_OUT (u32)(0x00000010)
+ #define MU_INTSTAT_DRBL_IN (u32)(0x00000100)
+ #define MU_INTSTAT_DRBL (u32)(0x00001000)
+ #define MU_INTSTAT_MASK (u32)(0x00001010)
+#define MU_INT_MASK_OUT (u32)(0x0001020C)
+
+/* PCI express registers accessed via window 1 */
+#define MVR_PCI_WIN1_REMAP (u32)(0x00008438)
+ #define MVRPW1R_ENABLE (u32)(0x00000001)
+
+
+/* structures */
+
+/* inbound list dynamic source entry */
+struct esas2r_inbound_list_source_entry {
+ u64 address;
+ u32 length;
+ #define HWILSE_INTERFACE_F0 0x00000000
+ u32 reserved;
+};
+
+/* PCI data structure in expansion ROM images */
+struct __packed esas2r_boot_header {
+ char signature[4];
+ u16 vendor_id;
+ u16 device_id;
+ u16 VPD;
+ u16 struct_length;
+ u8 struct_revision;
+ u8 class_code[3];
+ u16 image_length;
+ u16 code_revision;
+ u8 code_type;
+ #define CODE_TYPE_PC 0
+ #define CODE_TYPE_OPEN 1
+ #define CODE_TYPE_EFI 3
+ u8 indicator;
+ #define INDICATOR_LAST 0x80
+ u8 reserved[2];
+};
+
+struct __packed esas2r_boot_image {
+ u16 signature;
+ u8 reserved[22];
+ u16 header_offset;
+ u16 pnp_offset;
+};
+
+struct __packed esas2r_pc_image {
+ u16 signature;
+ u8 length;
+ u8 entry_point[3];
+ u8 checksum;
+ u16 image_end;
+ u16 min_size;
+ u8 rom_flags;
+ u8 reserved[12];
+ u16 header_offset;
+ u16 pnp_offset;
+ struct esas2r_boot_header boot_image;
+};
+
+struct __packed esas2r_efi_image {
+ u16 signature;
+ u16 length;
+ u32 efi_signature;
+ #define EFI_ROM_SIG 0x00000EF1
+ u16 image_type;
+ #define EFI_IMAGE_APP 10
+ #define EFI_IMAGE_BSD 11
+ #define EFI_IMAGE_RTD 12
+ u16 machine_type;
+ #define EFI_MACHINE_IA32 0x014c
+ #define EFI_MACHINE_IA64 0x0200
+ #define EFI_MACHINE_X64 0x8664
+ #define EFI_MACHINE_EBC 0x0EBC
+ u16 compression;
+ #define EFI_UNCOMPRESSED 0x0000
+ #define EFI_COMPRESSED 0x0001
+ u8 reserved[8];
+ u16 efi_offset;
+ u16 header_offset;
+ u16 reserved2;
+ struct esas2r_boot_header boot_image;
+};
+
+struct esas2r_adapter;
+struct esas2r_sg_context;
+struct esas2r_request;
+
+typedef void (*RQCALLBK) (struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+typedef bool (*RQBUILDSGL) (struct esas2r_adapter *a,
+ struct esas2r_sg_context *sgc);
+
+struct esas2r_component_header {
+ u8 img_type;
+ #define CH_IT_FW 0x00
+ #define CH_IT_NVR 0x01
+ #define CH_IT_BIOS 0x02
+ #define CH_IT_MAC 0x03
+ #define CH_IT_CFG 0x04
+ #define CH_IT_EFI 0x05
+ u8 status;
+ #define CH_STAT_PENDING 0xff
+ #define CH_STAT_FAILED 0x00
+ #define CH_STAT_SUCCESS 0x01
+ #define CH_STAT_RETRY 0x02
+ #define CH_STAT_INVALID 0x03
+ u8 pad[2];
+ u32 version;
+ u32 length;
+ u32 image_offset;
+};
+
+#define FI_REL_VER_SZ 16
+
+struct esas2r_flash_img_v0 {
+ u8 fi_version;
+ #define FI_VERSION_0 00
+ u8 status;
+ u8 adap_typ;
+ u8 action;
+ u32 length;
+ u16 checksum;
+ u16 driver_error;
+ u16 flags;
+ u16 num_comps;
+ #define FI_NUM_COMPS_V0 5
+ u8 rel_version[FI_REL_VER_SZ];
+ struct esas2r_component_header cmp_hdr[FI_NUM_COMPS_V0];
+ u8 scratch_buf[FM_BUF_SZ];
+};
+
+struct esas2r_flash_img {
+ u8 fi_version;
+ #define FI_VERSION_1 01
+ u8 status;
+ #define FI_STAT_SUCCESS 0x00
+ #define FI_STAT_FAILED 0x01
+ #define FI_STAT_REBOOT 0x02
+ #define FI_STAT_ADAPTYP 0x03
+ #define FI_STAT_INVALID 0x04
+ #define FI_STAT_CHKSUM 0x05
+ #define FI_STAT_LENGTH 0x06
+ #define FI_STAT_UNKNOWN 0x07
+ #define FI_STAT_IMG_VER 0x08
+ #define FI_STAT_BUSY 0x09
+ #define FI_STAT_DUAL 0x0A
+ #define FI_STAT_MISSING 0x0B
+ #define FI_STAT_UNSUPP 0x0C
+ #define FI_STAT_ERASE 0x0D
+ #define FI_STAT_FLASH 0x0E
+ #define FI_STAT_DEGRADED 0x0F
+ u8 adap_typ;
+ #define FI_AT_UNKNWN 0xFF
+ #define FI_AT_SUN_LAKE 0x0B
+ #define FI_AT_MV_9580 0x0F
+ u8 action;
+ #define FI_ACT_DOWN 0x00
+ #define FI_ACT_UP 0x01
+ #define FI_ACT_UPSZ 0x02
+ #define FI_ACT_MAX 0x02
+ #define FI_ACT_DOWN1 0x80
+ u32 length;
+ u16 checksum;
+ u16 driver_error;
+ u16 flags;
+ #define FI_FLG_NVR_DEF 0x0001
+ u16 num_comps;
+ #define FI_NUM_COMPS_V1 6
+ u8 rel_version[FI_REL_VER_SZ];
+ struct esas2r_component_header cmp_hdr[FI_NUM_COMPS_V1];
+ u8 scratch_buf[FM_BUF_SZ];
+};
+
+/* definitions for flash script (FS) commands */
+struct esas2r_ioctlfs_command {
+ u8 command;
+ #define ESAS2R_FS_CMD_ERASE 0
+ #define ESAS2R_FS_CMD_READ 1
+ #define ESAS2R_FS_CMD_BEGINW 2
+ #define ESAS2R_FS_CMD_WRITE 3
+ #define ESAS2R_FS_CMD_COMMIT 4
+ #define ESAS2R_FS_CMD_CANCEL 5
+ u8 checksum;
+ u8 reserved[2];
+ u32 flash_addr;
+ u32 length;
+ u32 image_offset;
+};
+
+struct esas2r_ioctl_fs {
+ u8 version;
+ #define ESAS2R_FS_VER 0
+ u8 status;
+ u8 driver_error;
+ u8 adap_type;
+ #define ESAS2R_FS_AT_ESASRAID2 3
+ #define ESAS2R_FS_AT_TSSASRAID2 4
+ #define ESAS2R_FS_AT_TSSASRAID2E 5
+ #define ESAS2R_FS_AT_TLSASHBA 6
+ u8 driver_ver;
+ u8 reserved[11];
+ struct esas2r_ioctlfs_command command;
+ u8 data[1];
+};
+
+struct esas2r_sas_nvram {
+ u8 signature[4];
+ u8 version;
+ #define SASNVR_VERSION_0 0x00
+ #define SASNVR_VERSION SASNVR_VERSION_0
+ u8 checksum;
+ #define SASNVR_CKSUM_SEED 0x5A
+ u8 max_lun_for_target;
+ u8 pci_latency;
+ #define SASNVR_PCILAT_DIS 0x00
+ #define SASNVR_PCILAT_MIN 0x10
+ #define SASNVR_PCILAT_MAX 0xF8
+ u8 options1;
+ #define SASNVR1_BOOT_DRVR 0x01
+ #define SASNVR1_BOOT_SCAN 0x02
+ #define SASNVR1_DIS_PCI_MWI 0x04
+ #define SASNVR1_FORCE_ORD_Q 0x08
+ #define SASNVR1_CACHELINE_0 0x10
+ #define SASNVR1_DIS_DEVSORT 0x20
+ #define SASNVR1_PWR_MGT_EN 0x40
+ #define SASNVR1_WIDEPORT 0x80
+ u8 options2;
+ #define SASNVR2_SINGLE_BUS 0x01
+ #define SASNVR2_SLOT_BIND 0x02
+ #define SASNVR2_EXP_PROG 0x04
+ #define SASNVR2_CMDTHR_LUN 0x08
+ #define SASNVR2_HEARTBEAT 0x10
+ #define SASNVR2_INT_CONNECT 0x20
+ #define SASNVR2_SW_MUX_CTRL 0x40
+ #define SASNVR2_DISABLE_NCQ 0x80
+ u8 int_coalescing;
+ #define SASNVR_COAL_DIS 0x00
+ #define SASNVR_COAL_LOW 0x01
+ #define SASNVR_COAL_MED 0x02
+ #define SASNVR_COAL_HI 0x03
+ u8 cmd_throttle;
+ #define SASNVR_CMDTHR_NONE 0x00
+ u8 dev_wait_time;
+ u8 dev_wait_count;
+ u8 spin_up_delay;
+ #define SASNVR_SPINUP_MAX 0x14
+ u8 ssp_align_rate;
+ u8 sas_addr[8];
+ u8 phy_speed[16];
+ #define SASNVR_SPEED_AUTO 0x00
+ #define SASNVR_SPEED_1_5GB 0x01
+ #define SASNVR_SPEED_3GB 0x02
+ #define SASNVR_SPEED_6GB 0x03
+ #define SASNVR_SPEED_12GB 0x04
+ u8 phy_mux[16];
+ #define SASNVR_MUX_DISABLED 0x00
+ #define SASNVR_MUX_1_5GB 0x01
+ #define SASNVR_MUX_3GB 0x02
+ #define SASNVR_MUX_6GB 0x03
+ u8 phy_flags[16];
+ #define SASNVR_PHF_DISABLED 0x01
+ #define SASNVR_PHF_RD_ONLY 0x02
+ u8 sort_type;
+ #define SASNVR_SORT_SAS_ADDR 0x00
+ #define SASNVR_SORT_H308_CONN 0x01
+ #define SASNVR_SORT_PHY_ID 0x02
+ #define SASNVR_SORT_SLOT_ID 0x03
+ u8 dpm_reqcmd_lmt;
+ u8 dpm_stndby_time;
+ u8 dpm_active_time;
+ u8 phy_target_id[16];
+ #define SASNVR_PTI_DISABLED 0xFF
+ u8 virt_ses_mode;
+ #define SASNVR_VSMH_DISABLED 0x00
+ u8 read_write_mode;
+ #define SASNVR_RWM_DEFAULT 0x00
+ u8 link_down_to;
+ u8 reserved[0xA1];
+};
+
+typedef u32 (*PGETPHYSADDR) (struct esas2r_sg_context *sgc, u64 *addr);
+
+struct esas2r_sg_context {
+ struct esas2r_adapter *adapter;
+ struct esas2r_request *first_req;
+ u32 length;
+ u8 *cur_offset;
+ PGETPHYSADDR get_phys_addr;
+ union {
+ struct {
+ struct atto_vda_sge *curr;
+ struct atto_vda_sge *last;
+ struct atto_vda_sge *limit;
+ struct atto_vda_sge *chain;
+ } a64;
+ struct {
+ struct atto_physical_region_description *curr;
+ struct atto_physical_region_description *chain;
+ u32 sgl_max_cnt;
+ u32 sge_cnt;
+ } prd;
+ } sge;
+ struct scatterlist *cur_sgel;
+ u8 *exp_offset;
+ int num_sgel;
+ int sgel_count;
+};
+
+struct esas2r_target {
+ u8 flags;
+ #define TF_PASS_THRU 0x01
+ #define TF_USED 0x02
+ u8 new_target_state;
+ u8 target_state;
+ u8 buffered_target_state;
+#define TS_NOT_PRESENT 0x00
+#define TS_PRESENT 0x05
+#define TS_LUN_CHANGE 0x06
+#define TS_INVALID 0xFF
+ u32 block_size;
+ u32 inter_block;
+ u32 inter_byte;
+ u16 virt_targ_id;
+ u16 phys_targ_id;
+ u8 identifier_len;
+ u64 sas_addr;
+ u8 identifier[60];
+ struct atto_vda_ae_lu lu_event;
+};
+
+struct esas2r_request {
+ struct list_head comp_list;
+ struct list_head req_list;
+ union atto_vda_req *vrq;
+ struct esas2r_mem_desc *vrq_md;
+ union {
+ void *data_buf;
+ union atto_vda_rsp_data *vda_rsp_data;
+ };
+ u8 *sense_buf;
+ struct list_head sg_table_head;
+ struct esas2r_mem_desc *sg_table;
+ u32 timeout;
+ #define RQ_TIMEOUT_S1 0xFFFFFFFF
+ #define RQ_TIMEOUT_S2 0xFFFFFFFE
+ #define RQ_MAX_TIMEOUT 0xFFFFFFFD
+ u16 target_id;
+ u8 req_type;
+ #define RT_INI_REQ 0x01
+ #define RT_DISC_REQ 0x02
+ u8 sense_len;
+ union atto_vda_func_rsp func_rsp;
+ RQCALLBK comp_cb;
+ RQCALLBK interrupt_cb;
+ void *interrupt_cx;
+ u8 flags;
+ #define RF_1ST_IBLK_BASE 0x04
+ #define RF_FAILURE_OK 0x08
+ u8 req_stat;
+ u16 vda_req_sz;
+ #define RQ_SIZE_DEFAULT 0
+ u64 lba;
+ RQCALLBK aux_req_cb;
+ void *aux_req_cx;
+ u32 blk_len;
+ u32 max_blk_len;
+ union {
+ struct scsi_cmnd *cmd;
+ u8 *task_management_status_ptr;
+ };
+};
+
+struct esas2r_flash_context {
+ struct esas2r_flash_img *fi;
+ RQCALLBK interrupt_cb;
+ u8 *sgc_offset;
+ u8 *scratch;
+ u32 fi_hdr_len;
+ u8 task;
+ #define FMTSK_ERASE_BOOT 0
+ #define FMTSK_WRTBIOS 1
+ #define FMTSK_READBIOS 2
+ #define FMTSK_WRTMAC 3
+ #define FMTSK_READMAC 4
+ #define FMTSK_WRTEFI 5
+ #define FMTSK_READEFI 6
+ #define FMTSK_WRTCFG 7
+ #define FMTSK_READCFG 8
+ u8 func;
+ u16 num_comps;
+ u32 cmp_len;
+ u32 flsh_addr;
+ u32 curr_len;
+ u8 comp_typ;
+ struct esas2r_sg_context sgc;
+};
+
+struct esas2r_disc_context {
+ u8 disc_evt;
+ #define DCDE_DEV_CHANGE 0x01
+ #define DCDE_DEV_SCAN 0x02
+ u8 state;
+ #define DCS_DEV_RMV 0x00
+ #define DCS_DEV_ADD 0x01
+ #define DCS_BLOCK_DEV_SCAN 0x02
+ #define DCS_RAID_GRP_INFO 0x03
+ #define DCS_PART_INFO 0x04
+ #define DCS_PT_DEV_INFO 0x05
+ #define DCS_PT_DEV_ADDR 0x06
+ #define DCS_DISC_DONE 0xFF
+ u16 flags;
+ #define DCF_DEV_CHANGE 0x0001
+ #define DCF_DEV_SCAN 0x0002
+ #define DCF_POLLED 0x8000
+ u32 interleave;
+ u32 block_size;
+ u16 dev_ix;
+ u8 part_num;
+ u8 raid_grp_ix;
+ char raid_grp_name[16];
+ struct esas2r_target *curr_targ;
+ u16 curr_virt_id;
+ u16 curr_phys_id;
+ u8 scan_gen;
+ u8 dev_addr_type;
+ u64 sas_addr;
+};
+
+struct esas2r_mem_desc {
+ struct list_head next_desc;
+ void *virt_addr;
+ u64 phys_addr;
+ void *pad;
+ void *esas2r_data;
+ u32 esas2r_param;
+ u32 size;
+};
+
+enum fw_event_type {
+ fw_event_null,
+ fw_event_lun_change,
+ fw_event_present,
+ fw_event_not_present,
+ fw_event_vda_ae
+};
+
+struct esas2r_vda_ae {
+ u32 signature;
+#define ESAS2R_VDA_EVENT_SIG 0x4154544F
+ u8 bus_number;
+ u8 devfn;
+ u8 pad[2];
+ union atto_vda_ae vda_ae;
+};
+
+struct esas2r_fw_event_work {
+ struct list_head list;
+ struct delayed_work work;
+ struct esas2r_adapter *a;
+ enum fw_event_type type;
+ u8 data[sizeof(struct esas2r_vda_ae)];
+};
+
+enum state {
+ FW_INVALID_ST,
+ FW_STATUS_ST,
+ FW_COMMAND_ST
+};
+
+struct esas2r_firmware {
+ enum state state;
+ struct esas2r_flash_img header;
+ u8 *data;
+ u64 phys;
+ int orig_len;
+ void *header_buff;
+ u64 header_buff_phys;
+};
+
+struct esas2r_adapter {
+ struct esas2r_target targetdb[ESAS2R_MAX_TARGETS];
+ struct esas2r_target *targetdb_end;
+ unsigned char *regs;
+ unsigned char *data_window;
+ u32 volatile flags;
+ #define AF_PORT_CHANGE (u32)(0x00000001)
+ #define AF_CHPRST_NEEDED (u32)(0x00000004)
+ #define AF_CHPRST_PENDING (u32)(0x00000008)
+ #define AF_CHPRST_DETECTED (u32)(0x00000010)
+ #define AF_BUSRST_NEEDED (u32)(0x00000020)
+ #define AF_BUSRST_PENDING (u32)(0x00000040)
+ #define AF_BUSRST_DETECTED (u32)(0x00000080)
+ #define AF_DISABLED (u32)(0x00000100)
+ #define AF_FLASH_LOCK (u32)(0x00000200)
+ #define AF_OS_RESET (u32)(0x00002000)
+ #define AF_FLASHING (u32)(0x00004000)
+ #define AF_POWER_MGT (u32)(0x00008000)
+ #define AF_NVR_VALID (u32)(0x00010000)
+ #define AF_DEGRADED_MODE (u32)(0x00020000)
+ #define AF_DISC_PENDING (u32)(0x00040000)
+ #define AF_TASKLET_SCHEDULED (u32)(0x00080000)
+ #define AF_HEARTBEAT (u32)(0x00200000)
+ #define AF_HEARTBEAT_ENB (u32)(0x00400000)
+ #define AF_NOT_PRESENT (u32)(0x00800000)
+ #define AF_CHPRST_STARTED (u32)(0x01000000)
+ #define AF_FIRST_INIT (u32)(0x02000000)
+ #define AF_POWER_DOWN (u32)(0x04000000)
+ #define AF_DISC_IN_PROG (u32)(0x08000000)
+ #define AF_COMM_LIST_TOGGLE (u32)(0x10000000)
+ #define AF_LEGACY_SGE_MODE (u32)(0x20000000)
+ #define AF_DISC_POLLED (u32)(0x40000000)
+ u32 volatile flags2;
+ #define AF2_SERIAL_FLASH (u32)(0x00000001)
+ #define AF2_DEV_SCAN (u32)(0x00000002)
+ #define AF2_DEV_CNT_OK (u32)(0x00000004)
+ #define AF2_COREDUMP_AVAIL (u32)(0x00000008)
+ #define AF2_COREDUMP_SAVED (u32)(0x00000010)
+ #define AF2_VDA_POWER_DOWN (u32)(0x00000100)
+ #define AF2_THUNDERLINK (u32)(0x00000200)
+ #define AF2_THUNDERBOLT (u32)(0x00000400)
+ #define AF2_INIT_DONE (u32)(0x00000800)
+ #define AF2_INT_PENDING (u32)(0x00001000)
+ #define AF2_TIMER_TICK (u32)(0x00002000)
+ #define AF2_IRQ_CLAIMED (u32)(0x00004000)
+ #define AF2_MSI_ENABLED (u32)(0x00008000)
+ atomic_t disable_cnt;
+ atomic_t dis_ints_cnt;
+ u32 int_stat;
+ u32 int_mask;
+ u32 volatile *outbound_copy;
+ struct list_head avail_request;
+ spinlock_t request_lock;
+ spinlock_t sg_list_lock;
+ spinlock_t queue_lock;
+ spinlock_t mem_lock;
+ struct list_head free_sg_list_head;
+ struct esas2r_mem_desc *sg_list_mds;
+ struct list_head active_list;
+ struct list_head defer_list;
+ struct esas2r_request **req_table;
+ union {
+ u16 prev_dev_cnt;
+ u32 heartbeat_time;
+ #define ESAS2R_HEARTBEAT_TIME (3000)
+ };
+ u32 chip_uptime;
+ #define ESAS2R_CHP_UPTIME_MAX (60000)
+ #define ESAS2R_CHP_UPTIME_CNT (20000)
+ u64 uncached_phys;
+ u8 *uncached;
+ struct esas2r_sas_nvram *nvram;
+ struct esas2r_request general_req;
+ u8 init_msg;
+ #define ESAS2R_INIT_MSG_START 1
+ #define ESAS2R_INIT_MSG_INIT 2
+ #define ESAS2R_INIT_MSG_GET_INIT 3
+ #define ESAS2R_INIT_MSG_REINIT 4
+ u16 cmd_ref_no;
+ u32 fw_version;
+ u32 fw_build;
+ u32 chip_init_time;
+ #define ESAS2R_CHPRST_TIME (180000)
+ #define ESAS2R_CHPRST_WAIT_TIME (2000)
+ u32 last_tick_time;
+ u32 window_base;
+ RQBUILDSGL build_sgl;
+ struct esas2r_request *first_ae_req;
+ u32 list_size;
+ u32 last_write;
+ u32 last_read;
+ u16 max_vdareq_size;
+ u16 disc_wait_cnt;
+ struct esas2r_mem_desc inbound_list_md;
+ struct esas2r_mem_desc outbound_list_md;
+ struct esas2r_disc_context disc_ctx;
+ u8 *disc_buffer;
+ u32 disc_start_time;
+ u32 disc_wait_time;
+ u32 flash_ver;
+ char flash_rev[16];
+ char fw_rev[16];
+ char image_type[16];
+ struct esas2r_flash_context flash_context;
+ u32 num_targets_backend;
+ u32 ioctl_tunnel;
+ struct tasklet_struct tasklet;
+ struct pci_dev *pcid;
+ struct Scsi_Host *host;
+ unsigned int index;
+ char name[32];
+ struct timer_list timer;
+ struct esas2r_firmware firmware;
+ wait_queue_head_t nvram_waiter;
+ int nvram_command_done;
+ wait_queue_head_t fm_api_waiter;
+ int fm_api_command_done;
+ wait_queue_head_t vda_waiter;
+ int vda_command_done;
+ u8 *vda_buffer;
+ u64 ppvda_buffer;
+#define VDA_BUFFER_HEADER_SZ (offsetof(struct atto_ioctl_vda, data))
+#define VDA_MAX_BUFFER_SIZE (0x40000 + VDA_BUFFER_HEADER_SZ)
+ wait_queue_head_t fs_api_waiter;
+ int fs_api_command_done;
+ u64 ppfs_api_buffer;
+ u8 *fs_api_buffer;
+ u32 fs_api_buffer_size;
+ wait_queue_head_t buffered_ioctl_waiter;
+ int buffered_ioctl_done;
+ int uncached_size;
+ struct workqueue_struct *fw_event_q;
+ struct list_head fw_event_list;
+ spinlock_t fw_event_lock;
+ u8 fw_events_off; /* if '1', then ignore events */
+ char fw_event_q_name[ESAS2R_KOBJ_NAME_LEN];
+ /*
+ * intr_mode stores the interrupt mode currently being used by this
+ * adapter. it is based on the interrupt_mode module parameter, but
+ * can be changed based on the ability (or not) to utilize the
+ * mode requested by the parameter.
+ */
+ int intr_mode;
+#define INTR_MODE_LEGACY 0
+#define INTR_MODE_MSI 1
+#define INTR_MODE_MSIX 2
+ struct esas2r_sg_context fm_api_sgc;
+ u8 *save_offset;
+ struct list_head vrq_mds_head;
+ struct esas2r_mem_desc *vrq_mds;
+ int num_vrqs;
+ struct semaphore fm_api_semaphore;
+ struct semaphore fs_api_semaphore;
+ struct semaphore nvram_semaphore;
+ struct atto_ioctl *local_atto_ioctl;
+ u8 fw_coredump_buff[ESAS2R_FWCOREDUMP_SZ];
+ unsigned int sysfs_fw_created:1;
+ unsigned int sysfs_fs_created:1;
+ unsigned int sysfs_vda_created:1;
+ unsigned int sysfs_hw_created:1;
+ unsigned int sysfs_live_nvram_created:1;
+ unsigned int sysfs_default_nvram_created:1;
+};
+
+/*
+ * Function Declarations
+ * SCSI functions
+ */
+int esas2r_release(struct Scsi_Host *);
+const char *esas2r_info(struct Scsi_Host *);
+int esas2r_write_params(struct esas2r_adapter *a, struct esas2r_request *rq,
+ struct esas2r_sas_nvram *data);
+int esas2r_ioctl_handler(void *hostdata, int cmd, void __user *arg);
+int esas2r_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
+u8 handle_hba_ioctl(struct esas2r_adapter *a,
+ struct atto_ioctl *ioctl_hba);
+int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd);
+int esas2r_show_info(struct seq_file *m, struct Scsi_Host *sh);
+int esas2r_slave_alloc(struct scsi_device *dev);
+int esas2r_slave_configure(struct scsi_device *dev);
+void esas2r_slave_destroy(struct scsi_device *dev);
+int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason);
+int esas2r_change_queue_type(struct scsi_device *dev, int type);
+long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg);
+
+/* SCSI error handler (eh) functions */
+int esas2r_eh_abort(struct scsi_cmnd *cmd);
+int esas2r_device_reset(struct scsi_cmnd *cmd);
+int esas2r_host_reset(struct scsi_cmnd *cmd);
+int esas2r_bus_reset(struct scsi_cmnd *cmd);
+int esas2r_target_reset(struct scsi_cmnd *cmd);
+
+/* Internal functions */
+int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid,
+ int index);
+int esas2r_cleanup(struct Scsi_Host *host);
+int esas2r_read_fw(struct esas2r_adapter *a, char *buf, long off, int count);
+int esas2r_write_fw(struct esas2r_adapter *a, const char *buf, long off,
+ int count);
+int esas2r_read_vda(struct esas2r_adapter *a, char *buf, long off, int count);
+int esas2r_write_vda(struct esas2r_adapter *a, const char *buf, long off,
+ int count);
+int esas2r_read_fs(struct esas2r_adapter *a, char *buf, long off, int count);
+int esas2r_write_fs(struct esas2r_adapter *a, const char *buf, long off,
+ int count);
+void esas2r_adapter_tasklet(unsigned long context);
+irqreturn_t esas2r_interrupt(int irq, void *dev_id);
+irqreturn_t esas2r_msi_interrupt(int irq, void *dev_id);
+void esas2r_kickoff_timer(struct esas2r_adapter *a);
+int esas2r_suspend(struct pci_dev *pcid, pm_message_t state);
+int esas2r_resume(struct pci_dev *pcid);
+void esas2r_fw_event_off(struct esas2r_adapter *a);
+void esas2r_fw_event_on(struct esas2r_adapter *a);
+bool esas2r_nvram_write(struct esas2r_adapter *a, struct esas2r_request *rq,
+ struct esas2r_sas_nvram *nvram);
+void esas2r_nvram_get_defaults(struct esas2r_adapter *a,
+ struct esas2r_sas_nvram *nvram);
+void esas2r_complete_request_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+void esas2r_reset_detected(struct esas2r_adapter *a);
+void esas2r_target_state_changed(struct esas2r_adapter *ha, u16 targ_id,
+ u8 state);
+int esas2r_req_status_to_error(u8 req_stat);
+void esas2r_kill_adapter(int i);
+void esas2r_free_request(struct esas2r_adapter *a, struct esas2r_request *rq);
+struct esas2r_request *esas2r_alloc_request(struct esas2r_adapter *a);
+u32 esas2r_get_uncached_size(struct esas2r_adapter *a);
+bool esas2r_init_adapter_struct(struct esas2r_adapter *a,
+ void **uncached_area);
+bool esas2r_check_adapter(struct esas2r_adapter *a);
+bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll);
+void esas2r_start_request(struct esas2r_adapter *a, struct esas2r_request *rq);
+bool esas2r_send_task_mgmt(struct esas2r_adapter *a,
+ struct esas2r_request *rqaux, u8 task_mgt_func);
+void esas2r_do_tasklet_tasks(struct esas2r_adapter *a);
+void esas2r_adapter_interrupt(struct esas2r_adapter *a);
+void esas2r_do_deferred_processes(struct esas2r_adapter *a);
+void esas2r_reset_bus(struct esas2r_adapter *a);
+void esas2r_reset_adapter(struct esas2r_adapter *a);
+void esas2r_timer_tick(struct esas2r_adapter *a);
+const char *esas2r_get_model_name(struct esas2r_adapter *a);
+const char *esas2r_get_model_name_short(struct esas2r_adapter *a);
+u32 esas2r_stall_execution(struct esas2r_adapter *a, u32 start_time,
+ u32 *delay);
+void esas2r_build_flash_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ u8 sub_func,
+ u8 cksum,
+ u32 addr,
+ u32 length);
+void esas2r_build_mgt_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ u8 sub_func,
+ u8 scan_gen,
+ u16 dev_index,
+ u32 length,
+ void *data);
+void esas2r_build_ae_req(struct esas2r_adapter *a, struct esas2r_request *rq);
+void esas2r_build_cli_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ u32 length,
+ u32 cmd_rsp_len);
+void esas2r_build_ioctl_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ u32 length,
+ u8 sub_func);
+void esas2r_build_cfg_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ u8 sub_func,
+ u32 length,
+ void *data);
+void esas2r_power_down(struct esas2r_adapter *a);
+bool esas2r_power_up(struct esas2r_adapter *a, bool init_poll);
+void esas2r_wait_request(struct esas2r_adapter *a, struct esas2r_request *rq);
+u32 esas2r_map_data_window(struct esas2r_adapter *a, u32 addr_lo);
+bool esas2r_process_fs_ioctl(struct esas2r_adapter *a,
+ struct esas2r_ioctl_fs *fs,
+ struct esas2r_request *rq,
+ struct esas2r_sg_context *sgc);
+bool esas2r_read_flash_block(struct esas2r_adapter *a, void *to, u32 from,
+ u32 size);
+bool esas2r_read_mem_block(struct esas2r_adapter *a, void *to, u32 from,
+ u32 size);
+bool esas2r_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi,
+ struct esas2r_request *rq, struct esas2r_sg_context *sgc);
+void esas2r_force_interrupt(struct esas2r_adapter *a);
+void esas2r_local_start_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+void esas2r_process_adapter_reset(struct esas2r_adapter *a);
+void esas2r_complete_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+void esas2r_dummy_complete(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+void esas2r_ae_complete(struct esas2r_adapter *a, struct esas2r_request *rq);
+void esas2r_start_vda_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+bool esas2r_read_flash_rev(struct esas2r_adapter *a);
+bool esas2r_read_image_type(struct esas2r_adapter *a);
+bool esas2r_nvram_read_direct(struct esas2r_adapter *a);
+bool esas2r_nvram_validate(struct esas2r_adapter *a);
+void esas2r_nvram_set_defaults(struct esas2r_adapter *a);
+bool esas2r_print_flash_rev(struct esas2r_adapter *a);
+void esas2r_send_reset_ae(struct esas2r_adapter *a, bool pwr_mgt);
+bool esas2r_init_msgs(struct esas2r_adapter *a);
+bool esas2r_is_adapter_present(struct esas2r_adapter *a);
+void esas2r_nuxi_mgt_data(u8 function, void *data);
+void esas2r_nuxi_cfg_data(u8 function, void *data);
+void esas2r_nuxi_ae_data(union atto_vda_ae *ae);
+void esas2r_reset_chip(struct esas2r_adapter *a);
+void esas2r_log_request_failure(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+void esas2r_polled_interrupt(struct esas2r_adapter *a);
+bool esas2r_ioreq_aborted(struct esas2r_adapter *a, struct esas2r_request *rq,
+ u8 status);
+bool esas2r_build_sg_list_sge(struct esas2r_adapter *a,
+ struct esas2r_sg_context *sgc);
+bool esas2r_build_sg_list_prd(struct esas2r_adapter *a,
+ struct esas2r_sg_context *sgc);
+void esas2r_targ_db_initialize(struct esas2r_adapter *a);
+void esas2r_targ_db_remove_all(struct esas2r_adapter *a, bool notify);
+void esas2r_targ_db_report_changes(struct esas2r_adapter *a);
+struct esas2r_target *esas2r_targ_db_add_raid(struct esas2r_adapter *a,
+ struct esas2r_disc_context *dc);
+struct esas2r_target *esas2r_targ_db_add_pthru(struct esas2r_adapter *a,
+ struct esas2r_disc_context *dc,
+ u8 *ident,
+ u8 ident_len);
+void esas2r_targ_db_remove(struct esas2r_adapter *a, struct esas2r_target *t);
+struct esas2r_target *esas2r_targ_db_find_by_sas_addr(struct esas2r_adapter *a,
+ u64 *sas_addr);
+struct esas2r_target *esas2r_targ_db_find_by_ident(struct esas2r_adapter *a,
+ void *identifier,
+ u8 ident_len);
+u16 esas2r_targ_db_find_next_present(struct esas2r_adapter *a, u16 target_id);
+struct esas2r_target *esas2r_targ_db_find_by_virt_id(struct esas2r_adapter *a,
+ u16 virt_id);
+u16 esas2r_targ_db_get_tgt_cnt(struct esas2r_adapter *a);
+void esas2r_disc_initialize(struct esas2r_adapter *a);
+void esas2r_disc_start_waiting(struct esas2r_adapter *a);
+void esas2r_disc_check_for_work(struct esas2r_adapter *a);
+void esas2r_disc_check_complete(struct esas2r_adapter *a);
+void esas2r_disc_queue_event(struct esas2r_adapter *a, u8 disc_evt);
+bool esas2r_disc_start_port(struct esas2r_adapter *a);
+void esas2r_disc_local_start_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+bool esas2r_set_degraded_mode(struct esas2r_adapter *a, char *error_str);
+bool esas2r_process_vda_ioctl(struct esas2r_adapter *a,
+ struct atto_ioctl_vda *vi,
+ struct esas2r_request *rq,
+ struct esas2r_sg_context *sgc);
+void esas2r_queue_fw_event(struct esas2r_adapter *a,
+ enum fw_event_type type,
+ void *data,
+ int data_sz);
+
+/* Inline functions */
+static inline u32 esas2r_lock_set_flags(volatile u32 *flags, u32 bits)
+{
+ return test_and_set_bit(ilog2(bits), (volatile unsigned long *)flags);
+}
+
+static inline u32 esas2r_lock_clear_flags(volatile u32 *flags, u32 bits)
+{
+ return test_and_clear_bit(ilog2(bits),
+ (volatile unsigned long *)flags);
+}
+
+/* Allocate a chip scatter/gather list entry */
+static inline struct esas2r_mem_desc *esas2r_alloc_sgl(struct esas2r_adapter *a)
+{
+ unsigned long flags;
+ struct list_head *sgl;
+ struct esas2r_mem_desc *result = NULL;
+
+ spin_lock_irqsave(&a->sg_list_lock, flags);
+ if (likely(!list_empty(&a->free_sg_list_head))) {
+ sgl = a->free_sg_list_head.next;
+ result = list_entry(sgl, struct esas2r_mem_desc, next_desc);
+ list_del_init(sgl);
+ }
+ spin_unlock_irqrestore(&a->sg_list_lock, flags);
+
+ return result;
+}
+
+/* Initialize a scatter/gather context */
+static inline void esas2r_sgc_init(struct esas2r_sg_context *sgc,
+ struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ struct atto_vda_sge *first)
+{
+ sgc->adapter = a;
+ sgc->first_req = rq;
+
+ /*
+ * set the limit pointer such that an SGE pointer above this value
+ * would be the first one to overflow the SGL.
+ */
+ sgc->sge.a64.limit = (struct atto_vda_sge *)((u8 *)rq->vrq
+ + (sizeof(union
+ atto_vda_req) /
+ 8)
+ - sizeof(struct
+ atto_vda_sge));
+ if (first) {
+ sgc->sge.a64.last =
+ sgc->sge.a64.curr = first;
+ rq->vrq->scsi.sg_list_offset = (u8)
+ ((u8 *)first -
+ (u8 *)rq->vrq);
+ } else {
+ sgc->sge.a64.last =
+ sgc->sge.a64.curr = &rq->vrq->scsi.u.sge[0];
+ rq->vrq->scsi.sg_list_offset =
+ (u8)offsetof(struct atto_vda_scsi_req, u.sge);
+ }
+ sgc->sge.a64.chain = NULL;
+}
+
+static inline void esas2r_rq_init_request(struct esas2r_request *rq,
+ struct esas2r_adapter *a)
+{
+ union atto_vda_req *vrq = rq->vrq;
+ u32 handle;
+
+ INIT_LIST_HEAD(&rq->sg_table_head);
+ rq->data_buf = (void *)(vrq + 1);
+ rq->interrupt_cb = NULL;
+ rq->comp_cb = esas2r_complete_request_cb;
+ rq->flags = 0;
+ rq->timeout = 0;
+ rq->req_stat = RS_PENDING;
+ rq->req_type = RT_INI_REQ;
+
+ /* clear the outbound response */
+ rq->func_rsp.dwords[0] = 0;
+ rq->func_rsp.dwords[1] = 0;
+
+ /*
+ * clear the size of the VDA request. esas2r_build_sg_list() will
+ * only allow the size of the request to grow. there are some
+ * management requests that go through there twice and the second
+ * time through sets a smaller request size. if this is not modified
+ * at all we'll set it to the size of the entire VDA request.
+ */
+ rq->vda_req_sz = RQ_SIZE_DEFAULT;
+
+ /* req_table entry should be NULL at this point - if not, halt */
+
+ if (a->req_table[LOWORD(vrq->scsi.handle)])
+ esas2r_bugon();
+
+ /* fill in the table for this handle so we can get back to the
+ * request.
+ */
+ a->req_table[LOWORD(vrq->scsi.handle)] = rq;
+
+ /*
+ * add a reference number to the handle to make it unique (until it
+ * wraps of course) while preserving the upper word
+ */
+
+ handle = be32_to_cpu(vrq->scsi.handle) & 0xFFFF0000;
+ vrq->scsi.handle = cpu_to_be32(handle + a->cmd_ref_no++);
+
+ /*
+ * the following formats a SCSI request. the caller can override as
+ * necessary. clear_vda_request can be called to clear the VDA
+ * request for another type of request.
+ */
+ vrq->scsi.function = VDA_FUNC_SCSI;
+ vrq->scsi.sense_len = SENSE_DATA_SZ;
+
+ /* clear out sg_list_offset and chain_offset */
+ vrq->scsi.sg_list_offset = 0;
+ vrq->scsi.chain_offset = 0;
+ vrq->scsi.flags = 0;
+ vrq->scsi.reserved = 0;
+
+ /* set the sense buffer to be the data payload buffer */
+ vrq->scsi.ppsense_buf
+ = cpu_to_le64(rq->vrq_md->phys_addr +
+ sizeof(union atto_vda_req));
+}
+
+static inline void esas2r_rq_free_sg_lists(struct esas2r_request *rq,
+ struct esas2r_adapter *a)
+{
+ unsigned long flags;
+
+ if (list_empty(&rq->sg_table_head))
+ return;
+
+ spin_lock_irqsave(&a->sg_list_lock, flags);
+ list_splice_tail_init(&rq->sg_table_head, &a->free_sg_list_head);
+ spin_unlock_irqrestore(&a->sg_list_lock, flags);
+}
+
+static inline void esas2r_rq_destroy_request(struct esas2r_request *rq,
+ struct esas2r_adapter *a)
+
+{
+ esas2r_rq_free_sg_lists(rq, a);
+ a->req_table[LOWORD(rq->vrq->scsi.handle)] = NULL;
+ rq->data_buf = NULL;
+}
+
+static inline bool esas2r_is_tasklet_pending(struct esas2r_adapter *a)
+{
+ return (a->flags & (AF_BUSRST_NEEDED | AF_BUSRST_DETECTED
+ | AF_CHPRST_NEEDED | AF_CHPRST_DETECTED
+ | AF_PORT_CHANGE))
+ ? true : false;
+}
+
+/*
+ * Build the scatter/gather list for an I/O request according to the
+ * specifications placed in the esas2r_sg_context. The caller must initialize
+ * struct esas2r_sg_context prior to the initial call by calling
+ * esas2r_sgc_init()
+ */
+static inline bool esas2r_build_sg_list(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ struct esas2r_sg_context *sgc)
+{
+ if (unlikely(le32_to_cpu(rq->vrq->scsi.length) == 0))
+ return true;
+
+ return (*a->build_sgl)(a, sgc);
+}
+
+static inline void esas2r_disable_chip_interrupts(struct esas2r_adapter *a)
+{
+ if (atomic_inc_return(&a->dis_ints_cnt) == 1)
+ esas2r_write_register_dword(a, MU_INT_MASK_OUT,
+ ESAS2R_INT_DIS_MASK);
+}
+
+static inline void esas2r_enable_chip_interrupts(struct esas2r_adapter *a)
+{
+ if (atomic_dec_return(&a->dis_ints_cnt) == 0)
+ esas2r_write_register_dword(a, MU_INT_MASK_OUT,
+ ESAS2R_INT_ENB_MASK);
+}
+
+/* Schedule a TASKLET to perform non-interrupt tasks that may require delays
+ * or long completion times.
+ */
+static inline void esas2r_schedule_tasklet(struct esas2r_adapter *a)
+{
+ /* make sure we don't schedule twice */
+ if (!(esas2r_lock_set_flags(&a->flags, AF_TASKLET_SCHEDULED) &
+ ilog2(AF_TASKLET_SCHEDULED)))
+ tasklet_hi_schedule(&a->tasklet);
+}
+
+static inline void esas2r_enable_heartbeat(struct esas2r_adapter *a)
+{
+ if (!(a->flags & (AF_DEGRADED_MODE | AF_CHPRST_PENDING))
+ && (a->nvram->options2 & SASNVR2_HEARTBEAT))
+ esas2r_lock_set_flags(&a->flags, AF_HEARTBEAT_ENB);
+ else
+ esas2r_lock_clear_flags(&a->flags, AF_HEARTBEAT_ENB);
+}
+
+static inline void esas2r_disable_heartbeat(struct esas2r_adapter *a)
+{
+ esas2r_lock_clear_flags(&a->flags, AF_HEARTBEAT_ENB);
+ esas2r_lock_clear_flags(&a->flags, AF_HEARTBEAT);
+}
+
+/* Set the initial state for resetting the adapter on the next pass through
+ * esas2r_do_deferred.
+ */
+static inline void esas2r_local_reset_adapter(struct esas2r_adapter *a)
+{
+ esas2r_disable_heartbeat(a);
+
+ esas2r_lock_set_flags(&a->flags, AF_CHPRST_NEEDED);
+ esas2r_lock_set_flags(&a->flags, AF_CHPRST_PENDING);
+ esas2r_lock_set_flags(&a->flags, AF_DISC_PENDING);
+}
+
+/* See if an interrupt is pending on the adapter. */
+static inline bool esas2r_adapter_interrupt_pending(struct esas2r_adapter *a)
+{
+ u32 intstat;
+
+ if (a->int_mask == 0)
+ return false;
+
+ intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
+
+ if ((intstat & a->int_mask) == 0)
+ return false;
+
+ esas2r_disable_chip_interrupts(a);
+
+ a->int_stat = intstat;
+ a->int_mask = 0;
+
+ return true;
+}
+
+static inline u16 esas2r_targ_get_id(struct esas2r_target *t,
+ struct esas2r_adapter *a)
+{
+ return (u16)(uintptr_t)(t - a->targetdb);
+}
+
+/* Build and start an asynchronous event request */
+static inline void esas2r_start_ae_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ unsigned long flags;
+
+ esas2r_build_ae_req(a, rq);
+
+ spin_lock_irqsave(&a->queue_lock, flags);
+ esas2r_start_vda_request(a, rq);
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+}
+
+static inline void esas2r_comp_list_drain(struct esas2r_adapter *a,
+ struct list_head *comp_list)
+{
+ struct esas2r_request *rq;
+ struct list_head *element, *next;
+
+ list_for_each_safe(element, next, comp_list) {
+ rq = list_entry(element, struct esas2r_request, comp_list);
+ list_del_init(element);
+ esas2r_complete_request(a, rq);
+ }
+}
+
+/* sysfs handlers */
+extern struct bin_attribute bin_attr_fw;
+extern struct bin_attribute bin_attr_fs;
+extern struct bin_attribute bin_attr_vda;
+extern struct bin_attribute bin_attr_hw;
+extern struct bin_attribute bin_attr_live_nvram;
+extern struct bin_attribute bin_attr_default_nvram;
+
+#endif /* ESAS2R_H */
--
1.8.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v4 02/10] SCSI: esas2r: Add main file
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
2013-08-23 14:35 ` [PATCH v4 01/10] SCSI: esas2r: Add main header file Bradley Grove
@ 2013-08-23 14:35 ` Bradley Grove
2013-08-23 14:35 ` [PATCH v4 03/10] SCSI: esas2r: Add initialization functions Bradley Grove
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Bradley Grove @ 2013-08-23 14:35 UTC (permalink / raw)
To: linux-scsi, jbottomley; +Cc: jseba, Bradley Grove
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
drivers/scsi/esas2r/esas2r_main.c | 2032 +++++++++++++++++++++++++++++++++++++
1 file changed, 2032 insertions(+)
create mode 100644 drivers/scsi/esas2r/esas2r_main.c
diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c
new file mode 100644
index 0000000..4abf127
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_main.c
@@ -0,0 +1,2032 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r_main.c
+ * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
+#include "esas2r.h"
+
+MODULE_DESCRIPTION(ESAS2R_DRVR_NAME ": " ESAS2R_LONGNAME " driver");
+MODULE_AUTHOR("ATTO Technology, Inc.");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(ESAS2R_VERSION_STR);
+
+/* global definitions */
+
+static int found_adapters;
+struct esas2r_adapter *esas2r_adapters[MAX_ADAPTERS];
+
+#define ESAS2R_VDA_EVENT_PORT1 54414
+#define ESAS2R_VDA_EVENT_PORT2 54415
+#define ESAS2R_VDA_EVENT_SOCK_COUNT 2
+
+static struct esas2r_adapter *esas2r_adapter_from_kobj(struct kobject *kobj)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct Scsi_Host *host = class_to_shost(dev);
+
+ return (struct esas2r_adapter *)host->hostdata;
+}
+
+static ssize_t read_fw(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+
+ return esas2r_read_fw(a, buf, off, count);
+}
+
+static ssize_t write_fw(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+
+ return esas2r_write_fw(a, buf, off, count);
+}
+
+static ssize_t read_fs(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+
+ return esas2r_read_fs(a, buf, off, count);
+}
+
+static ssize_t write_fs(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+ int length = min(sizeof(struct esas2r_ioctl_fs), count);
+ int result = 0;
+
+ result = esas2r_write_fs(a, buf, off, count);
+
+ if (result < 0)
+ result = 0;
+
+ return length;
+}
+
+static ssize_t read_vda(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+
+ return esas2r_read_vda(a, buf, off, count);
+}
+
+static ssize_t write_vda(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+
+ return esas2r_write_vda(a, buf, off, count);
+}
+
+static ssize_t read_live_nvram(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+ int length = min_t(size_t, sizeof(struct esas2r_sas_nvram), PAGE_SIZE);
+
+ memcpy(buf, a->nvram, length);
+ return length;
+}
+
+static ssize_t write_live_nvram(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+ struct esas2r_request *rq;
+ int result = -EFAULT;
+
+ rq = esas2r_alloc_request(a);
+ if (rq == NULL)
+ return -ENOMEM;
+
+ if (esas2r_write_params(a, rq, (struct esas2r_sas_nvram *)buf))
+ result = count;
+
+ esas2r_free_request(a, rq);
+
+ return result;
+}
+
+static ssize_t read_default_nvram(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+
+ esas2r_nvram_get_defaults(a, (struct esas2r_sas_nvram *)buf);
+
+ return sizeof(struct esas2r_sas_nvram);
+}
+
+static ssize_t read_hw(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+ int length = min_t(size_t, sizeof(struct atto_ioctl), PAGE_SIZE);
+
+ if (!a->local_atto_ioctl)
+ return -ENOMEM;
+
+ if (handle_hba_ioctl(a, a->local_atto_ioctl) != IOCTL_SUCCESS)
+ return -ENOMEM;
+
+ memcpy(buf, a->local_atto_ioctl, length);
+
+ return length;
+}
+
+static ssize_t write_hw(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
+ int length = min(sizeof(struct atto_ioctl), count);
+
+ if (!a->local_atto_ioctl) {
+ a->local_atto_ioctl = kzalloc(sizeof(struct atto_ioctl),
+ GFP_KERNEL);
+ if (a->local_atto_ioctl == NULL) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "write_hw kzalloc failed for %d bytes",
+ sizeof(struct atto_ioctl));
+ return -ENOMEM;
+ }
+ }
+
+ memset(a->local_atto_ioctl, 0, sizeof(struct atto_ioctl));
+ memcpy(a->local_atto_ioctl, buf, length);
+
+ return length;
+}
+
+#define ESAS2R_RW_BIN_ATTR(_name) \
+ struct bin_attribute bin_attr_ ## _name = { \
+ .attr = \
+ { .name = __stringify(_name), .mode = S_IRUSR | S_IWUSR }, \
+ .size = 0, \
+ .read = read_ ## _name, \
+ .write = write_ ## _name }
+
+ESAS2R_RW_BIN_ATTR(fw);
+ESAS2R_RW_BIN_ATTR(fs);
+ESAS2R_RW_BIN_ATTR(vda);
+ESAS2R_RW_BIN_ATTR(hw);
+ESAS2R_RW_BIN_ATTR(live_nvram);
+
+struct bin_attribute bin_attr_default_nvram = {
+ .attr = { .name = "default_nvram", .mode = S_IRUGO },
+ .size = 0,
+ .read = read_default_nvram,
+ .write = NULL
+};
+
+static struct scsi_host_template driver_template = {
+ .module = THIS_MODULE,
+ .show_info = esas2r_show_info,
+ .name = ESAS2R_LONGNAME,
+ .release = esas2r_release,
+ .info = esas2r_info,
+ .ioctl = esas2r_ioctl,
+ .queuecommand = esas2r_queuecommand,
+ .eh_abort_handler = esas2r_eh_abort,
+ .eh_device_reset_handler = esas2r_device_reset,
+ .eh_bus_reset_handler = esas2r_bus_reset,
+ .eh_host_reset_handler = esas2r_host_reset,
+ .eh_target_reset_handler = esas2r_target_reset,
+ .can_queue = 128,
+ .this_id = -1,
+ .sg_tablesize = SCSI_MAX_SG_SEGMENTS,
+ .cmd_per_lun =
+ ESAS2R_DEFAULT_CMD_PER_LUN,
+ .present = 0,
+ .unchecked_isa_dma = 0,
+ .use_clustering = ENABLE_CLUSTERING,
+ .emulated = 0,
+ .proc_name = ESAS2R_DRVR_NAME,
+ .slave_configure = esas2r_slave_configure,
+ .slave_alloc = esas2r_slave_alloc,
+ .slave_destroy = esas2r_slave_destroy,
+ .change_queue_depth = esas2r_change_queue_depth,
+ .change_queue_type = esas2r_change_queue_type,
+ .max_sectors = 0xFFFF,
+};
+
+int sgl_page_size = 512;
+module_param(sgl_page_size, int, 0);
+MODULE_PARM_DESC(sgl_page_size,
+ "Scatter/gather list (SGL) page size in number of S/G "
+ "entries. If your application is doing a lot of very large "
+ "transfers, you may want to increase the SGL page size. "
+ "Default 512.");
+
+int num_sg_lists = 1024;
+module_param(num_sg_lists, int, 0);
+MODULE_PARM_DESC(num_sg_lists,
+ "Number of scatter/gather lists. Default 1024.");
+
+int sg_tablesize = SCSI_MAX_SG_SEGMENTS;
+module_param(sg_tablesize, int, 0);
+MODULE_PARM_DESC(sg_tablesize,
+ "Maximum number of entries in a scatter/gather table.");
+
+int num_requests = 256;
+module_param(num_requests, int, 0);
+MODULE_PARM_DESC(num_requests,
+ "Number of requests. Default 256.");
+
+int num_ae_requests = 4;
+module_param(num_ae_requests, int, 0);
+MODULE_PARM_DESC(num_ae_requests,
+ "Number of VDA asynchromous event requests. Default 4.");
+
+int cmd_per_lun = ESAS2R_DEFAULT_CMD_PER_LUN;
+module_param(cmd_per_lun, int, 0);
+MODULE_PARM_DESC(cmd_per_lun,
+ "Maximum number of commands per LUN. Default "
+ DEFINED_NUM_TO_STR(ESAS2R_DEFAULT_CMD_PER_LUN) ".");
+
+int can_queue = 128;
+module_param(can_queue, int, 0);
+MODULE_PARM_DESC(can_queue,
+ "Maximum number of commands per adapter. Default 128.");
+
+int esas2r_max_sectors = 0xFFFF;
+module_param(esas2r_max_sectors, int, 0);
+MODULE_PARM_DESC(esas2r_max_sectors,
+ "Maximum number of disk sectors in a single data transfer. "
+ "Default 65535 (largest possible setting).");
+
+int interrupt_mode = 1;
+module_param(interrupt_mode, int, 0);
+MODULE_PARM_DESC(interrupt_mode,
+ "Defines the interrupt mode to use. 0 for legacy"
+ ", 1 for MSI. Default is MSI (1).");
+
+static struct pci_device_id
+ esas2r_pci_table[] = {
+ { ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x0049,
+ 0,
+ 0, 0 },
+ { ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x004A,
+ 0,
+ 0, 0 },
+ { ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x004B,
+ 0,
+ 0, 0 },
+ { ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x004C,
+ 0,
+ 0, 0 },
+ { ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x004D,
+ 0,
+ 0, 0 },
+ { ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x004E,
+ 0,
+ 0, 0 },
+ { 0, 0, 0, 0,
+ 0,
+ 0, 0 }
+};
+
+MODULE_DEVICE_TABLE(pci, esas2r_pci_table);
+
+static int
+esas2r_probe(struct pci_dev *pcid, const struct pci_device_id *id);
+
+static void
+esas2r_remove(struct pci_dev *pcid);
+
+static struct pci_driver
+ esas2r_pci_driver = {
+ .name = ESAS2R_DRVR_NAME,
+ .id_table = esas2r_pci_table,
+ .probe = esas2r_probe,
+ .remove = esas2r_remove,
+ .suspend = esas2r_suspend,
+ .resume = esas2r_resume,
+};
+
+static int esas2r_probe(struct pci_dev *pcid,
+ const struct pci_device_id *id)
+{
+ struct Scsi_Host *host = NULL;
+ struct esas2r_adapter *a;
+ int err;
+
+ size_t host_alloc_size = sizeof(struct esas2r_adapter)
+ + ((num_requests) +
+ 1) * sizeof(struct esas2r_request);
+
+ esas2r_log_dev(ESAS2R_LOG_DEBG, &(pcid->dev),
+ "esas2r_probe() 0x%02x 0x%02x 0x%02x 0x%02x",
+ pcid->vendor,
+ pcid->device,
+ pcid->subsystem_vendor,
+ pcid->subsystem_device);
+
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
+ "before pci_enable_device() "
+ "enable_cnt: %d",
+ pcid->enable_cnt.counter);
+
+ err = pci_enable_device(pcid);
+ if (err != 0) {
+ esas2r_log_dev(ESAS2R_LOG_CRIT, &(pcid->dev),
+ "pci_enable_device() FAIL (%d)",
+ err);
+ return -ENODEV;
+ }
+
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
+ "pci_enable_device() OK");
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
+ "after pci_device_enable() enable_cnt: %d",
+ pcid->enable_cnt.counter);
+
+ host = scsi_host_alloc(&driver_template, host_alloc_size);
+ if (host == NULL) {
+ esas2r_log(ESAS2R_LOG_CRIT, "scsi_host_alloc() FAIL");
+ return -ENODEV;
+ }
+
+ memset(host->hostdata, 0, host_alloc_size);
+
+ a = (struct esas2r_adapter *)host->hostdata;
+
+ esas2r_log(ESAS2R_LOG_INFO, "scsi_host_alloc() OK host: %p", host);
+
+ /* override max LUN and max target id */
+
+ host->max_id = ESAS2R_MAX_ID + 1;
+ host->max_lun = 255;
+
+ /* we can handle 16-byte CDbs */
+
+ host->max_cmd_len = 16;
+
+ host->can_queue = can_queue;
+ host->cmd_per_lun = cmd_per_lun;
+ host->this_id = host->max_id + 1;
+ host->max_channel = 0;
+ host->unique_id = found_adapters;
+ host->sg_tablesize = sg_tablesize;
+ host->max_sectors = esas2r_max_sectors;
+
+ /* set to bus master for BIOses that don't do it for us */
+
+ esas2r_log(ESAS2R_LOG_INFO, "pci_set_master() called");
+
+ pci_set_master(pcid);
+
+ if (!esas2r_init_adapter(host, pcid, found_adapters)) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "unable to initialize device at PCI bus %x:%x",
+ pcid->bus->number,
+ pcid->devfn);
+
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
+ "scsi_host_put() called");
+
+ scsi_host_put(host);
+
+ return 0;
+
+ }
+
+ esas2r_log(ESAS2R_LOG_INFO, "pci_set_drvdata(%p, %p) called", pcid,
+ host->hostdata);
+
+ pci_set_drvdata(pcid, host);
+
+ esas2r_log(ESAS2R_LOG_INFO, "scsi_add_host() called");
+
+ err = scsi_add_host(host, &pcid->dev);
+
+ if (err) {
+ esas2r_log(ESAS2R_LOG_CRIT, "scsi_add_host returned %d", err);
+ esas2r_log_dev(ESAS2R_LOG_CRIT, &(host->shost_gendev),
+ "scsi_add_host() FAIL");
+
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
+ "scsi_host_put() called");
+
+ scsi_host_put(host);
+
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
+ "pci_set_drvdata(%p, NULL) called",
+ pcid);
+
+ pci_set_drvdata(pcid, NULL);
+
+ return -ENODEV;
+ }
+
+
+ esas2r_fw_event_on(a);
+
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
+ "scsi_scan_host() called");
+
+ scsi_scan_host(host);
+
+ /* Add sysfs binary files */
+ if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_fw))
+ esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
+ "Failed to create sysfs binary file: fw");
+ else
+ a->sysfs_fw_created = 1;
+
+ if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_fs))
+ esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
+ "Failed to create sysfs binary file: fs");
+ else
+ a->sysfs_fs_created = 1;
+
+ if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_vda))
+ esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
+ "Failed to create sysfs binary file: vda");
+ else
+ a->sysfs_vda_created = 1;
+
+ if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_hw))
+ esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
+ "Failed to create sysfs binary file: hw");
+ else
+ a->sysfs_hw_created = 1;
+
+ if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_live_nvram))
+ esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
+ "Failed to create sysfs binary file: live_nvram");
+ else
+ a->sysfs_live_nvram_created = 1;
+
+ if (sysfs_create_bin_file(&host->shost_dev.kobj,
+ &bin_attr_default_nvram))
+ esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
+ "Failed to create sysfs binary file: default_nvram");
+ else
+ a->sysfs_default_nvram_created = 1;
+
+ found_adapters++;
+
+ return 0;
+}
+
+static void esas2r_remove(struct pci_dev *pdev)
+{
+ struct Scsi_Host *host;
+ int index;
+
+ if (pdev == NULL) {
+ esas2r_log(ESAS2R_LOG_WARN, "esas2r_remove pdev==NULL");
+ return;
+ }
+
+ host = pci_get_drvdata(pdev);
+
+ if (host == NULL) {
+ /*
+ * this can happen if pci_set_drvdata was already called
+ * to clear the host pointer. if this is the case, we
+ * are okay; this channel has already been cleaned up.
+ */
+
+ return;
+ }
+
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
+ "esas2r_remove(%p) called; "
+ "host:%p", pdev,
+ host);
+
+ index = esas2r_cleanup(host);
+
+ if (index < 0)
+ esas2r_log_dev(ESAS2R_LOG_WARN, &(pdev->dev),
+ "unknown host in %s",
+ __func__);
+
+ found_adapters--;
+
+ /* if this was the last adapter, clean up the rest of the driver */
+
+ if (found_adapters == 0)
+ esas2r_cleanup(NULL);
+}
+
+static int __init esas2r_init(void)
+{
+ int i;
+
+ esas2r_log(ESAS2R_LOG_INFO, "%s called", __func__);
+
+ /* verify valid parameters */
+
+ if (can_queue < 1) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "warning: can_queue must be at least 1, value "
+ "forced.");
+ can_queue = 1;
+ } else if (can_queue > 2048) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "warning: can_queue must be no larger than 2048, "
+ "value forced.");
+ can_queue = 2048;
+ }
+
+ if (cmd_per_lun < 1) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "warning: cmd_per_lun must be at least 1, value "
+ "forced.");
+ cmd_per_lun = 1;
+ } else if (cmd_per_lun > 2048) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "warning: cmd_per_lun must be no larger than "
+ "2048, value forced.");
+ cmd_per_lun = 2048;
+ }
+
+ if (sg_tablesize < 32) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "warning: sg_tablesize must be at least 32, "
+ "value forced.");
+ sg_tablesize = 32;
+ }
+
+ if (esas2r_max_sectors < 1) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "warning: esas2r_max_sectors must be at least "
+ "1, value forced.");
+ esas2r_max_sectors = 1;
+ } else if (esas2r_max_sectors > 0xffff) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "warning: esas2r_max_sectors must be no larger "
+ "than 0xffff, value forced.");
+ esas2r_max_sectors = 0xffff;
+ }
+
+ sgl_page_size &= ~(ESAS2R_SGL_ALIGN - 1);
+
+ if (sgl_page_size < SGL_PG_SZ_MIN)
+ sgl_page_size = SGL_PG_SZ_MIN;
+ else if (sgl_page_size > SGL_PG_SZ_MAX)
+ sgl_page_size = SGL_PG_SZ_MAX;
+
+ if (num_sg_lists < NUM_SGL_MIN)
+ num_sg_lists = NUM_SGL_MIN;
+ else if (num_sg_lists > NUM_SGL_MAX)
+ num_sg_lists = NUM_SGL_MAX;
+
+ if (num_requests < NUM_REQ_MIN)
+ num_requests = NUM_REQ_MIN;
+ else if (num_requests > NUM_REQ_MAX)
+ num_requests = NUM_REQ_MAX;
+
+ if (num_ae_requests < NUM_AE_MIN)
+ num_ae_requests = NUM_AE_MIN;
+ else if (num_ae_requests > NUM_AE_MAX)
+ num_ae_requests = NUM_AE_MAX;
+
+ /* set up other globals */
+
+ for (i = 0; i < MAX_ADAPTERS; i++)
+ esas2r_adapters[i] = NULL;
+
+ /* initialize */
+
+ driver_template.module = THIS_MODULE;
+
+ if (pci_register_driver(&esas2r_pci_driver) != 0)
+ esas2r_log(ESAS2R_LOG_CRIT, "pci_register_driver FAILED");
+ else
+ esas2r_log(ESAS2R_LOG_INFO, "pci_register_driver() OK");
+
+ if (!found_adapters) {
+ pci_unregister_driver(&esas2r_pci_driver);
+ esas2r_cleanup(NULL);
+
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "driver will not be loaded because no ATTO "
+ "%s devices were found",
+ ESAS2R_DRVR_NAME);
+ return -1;
+ } else {
+ esas2r_log(ESAS2R_LOG_INFO, "found %d adapters",
+ found_adapters);
+ }
+
+ return 0;
+}
+
+/* Handle ioctl calls to "/proc/scsi/esas2r/ATTOnode" */
+static const struct file_operations esas2r_proc_fops = {
+ .compat_ioctl = esas2r_proc_ioctl,
+ .unlocked_ioctl = esas2r_proc_ioctl,
+};
+
+static struct Scsi_Host *esas2r_proc_host;
+static int esas2r_proc_major;
+
+long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
+{
+ return esas2r_ioctl_handler(esas2r_proc_host->hostdata,
+ (int)cmd, (void __user *)arg);
+}
+
+static void __exit esas2r_exit(void)
+{
+ esas2r_log(ESAS2R_LOG_INFO, "%s called", __func__);
+
+ if (esas2r_proc_major > 0) {
+ esas2r_log(ESAS2R_LOG_INFO, "unregister proc");
+
+ remove_proc_entry(ATTONODE_NAME,
+ esas2r_proc_host->hostt->proc_dir);
+ unregister_chrdev(esas2r_proc_major, ESAS2R_DRVR_NAME);
+
+ esas2r_proc_major = 0;
+ }
+
+ esas2r_log(ESAS2R_LOG_INFO, "pci_unregister_driver() called");
+
+ pci_unregister_driver(&esas2r_pci_driver);
+}
+
+int esas2r_show_info(struct seq_file *m, struct Scsi_Host *sh)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)sh->hostdata;
+
+ struct esas2r_target *t;
+ int dev_count = 0;
+
+ esas2r_log(ESAS2R_LOG_DEBG, "esas2r_show_info (%p,%d)", m, sh->host_no);
+
+ seq_printf(m, ESAS2R_LONGNAME "\n"
+ "Driver version: "ESAS2R_VERSION_STR "\n"
+ "Flash version: %s\n"
+ "Firmware version: %s\n"
+ "Copyright "ESAS2R_COPYRIGHT_YEARS "\n"
+ "http://www.attotech.com\n"
+ "\n",
+ a->flash_rev,
+ a->fw_rev[0] ? a->fw_rev : "(none)");
+
+
+ seq_printf(m, "Adapter information:\n"
+ "--------------------\n"
+ "Model: %s\n"
+ "SAS address: %02X%02X%02X%02X:%02X%02X%02X%02X\n",
+ esas2r_get_model_name(a),
+ a->nvram->sas_addr[0],
+ a->nvram->sas_addr[1],
+ a->nvram->sas_addr[2],
+ a->nvram->sas_addr[3],
+ a->nvram->sas_addr[4],
+ a->nvram->sas_addr[5],
+ a->nvram->sas_addr[6],
+ a->nvram->sas_addr[7]);
+
+ seq_puts(m, "\n"
+ "Discovered devices:\n"
+ "\n"
+ " # Target ID\n"
+ "---------------\n");
+
+ for (t = a->targetdb; t < a->targetdb_end; t++)
+ if (t->buffered_target_state == TS_PRESENT) {
+ seq_printf(m, " %3d %3d\n",
+ ++dev_count,
+ (u16)(uintptr_t)(t - a->targetdb));
+ }
+
+ if (dev_count == 0)
+ seq_puts(m, "none\n");
+
+ seq_puts(m, "\n");
+ return 0;
+
+}
+
+int esas2r_release(struct Scsi_Host *sh)
+{
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(sh->shost_gendev),
+ "esas2r_release() called");
+
+ esas2r_cleanup(sh);
+ if (sh->irq)
+ free_irq(sh->irq, NULL);
+ scsi_unregister(sh);
+ return 0;
+}
+
+const char *esas2r_info(struct Scsi_Host *sh)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)sh->hostdata;
+ static char esas2r_info_str[512];
+
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(sh->shost_gendev),
+ "esas2r_info() called");
+
+ /*
+ * if we haven't done so already, register as a char driver
+ * and stick a node under "/proc/scsi/esas2r/ATTOnode"
+ */
+
+ if (esas2r_proc_major <= 0) {
+ esas2r_proc_host = sh;
+
+ esas2r_proc_major = register_chrdev(0, ESAS2R_DRVR_NAME,
+ &esas2r_proc_fops);
+
+ esas2r_log_dev(ESAS2R_LOG_DEBG, &(sh->shost_gendev),
+ "register_chrdev (major %d)",
+ esas2r_proc_major);
+
+ if (esas2r_proc_major > 0) {
+ struct proc_dir_entry *pde;
+
+ pde = proc_create(ATTONODE_NAME, 0,
+ sh->hostt->proc_dir,
+ &esas2r_proc_fops);
+
+ if (!pde) {
+ esas2r_log_dev(ESAS2R_LOG_WARN,
+ &(sh->shost_gendev),
+ "failed to create_proc_entry");
+ esas2r_proc_major = -1;
+ }
+ }
+ }
+
+ sprintf(esas2r_info_str,
+ ESAS2R_LONGNAME " (bus 0x%02X, device 0x%02X, IRQ 0x%02X)"
+ " driver version: "ESAS2R_VERSION_STR " firmware version: "
+ "%s\n",
+ a->pcid->bus->number, a->pcid->devfn, a->pcid->irq,
+ a->fw_rev[0] ? a->fw_rev : "(none)");
+
+ return esas2r_info_str;
+}
+
+/* Callback for building a request scatter/gather list */
+static u32 get_physaddr_from_sgc(struct esas2r_sg_context *sgc, u64 *addr)
+{
+ u32 len;
+
+ if (likely(sgc->cur_offset == sgc->exp_offset)) {
+ /*
+ * the normal case: caller used all bytes from previous call, so
+ * expected offset is the same as the current offset.
+ */
+
+ if (sgc->sgel_count < sgc->num_sgel) {
+ /* retrieve next segment, except for first time */
+ if (sgc->exp_offset > (u8 *)0) {
+ /* advance current segment */
+ sgc->cur_sgel = sg_next(sgc->cur_sgel);
+ ++(sgc->sgel_count);
+ }
+
+
+ len = sg_dma_len(sgc->cur_sgel);
+ (*addr) = sg_dma_address(sgc->cur_sgel);
+
+ /* save the total # bytes returned to caller so far */
+ sgc->exp_offset += len;
+
+ } else {
+ len = 0;
+ }
+ } else if (sgc->cur_offset < sgc->exp_offset) {
+ /*
+ * caller did not use all bytes from previous call. need to
+ * compute the address based on current segment.
+ */
+
+ len = sg_dma_len(sgc->cur_sgel);
+ (*addr) = sg_dma_address(sgc->cur_sgel);
+
+ sgc->exp_offset -= len;
+
+ /* calculate PA based on prev segment address and offsets */
+ *addr = *addr +
+ (sgc->cur_offset - sgc->exp_offset);
+
+ sgc->exp_offset += len;
+
+ /* re-calculate length based on offset */
+ len = lower_32_bits(
+ sgc->exp_offset - sgc->cur_offset);
+ } else { /* if ( sgc->cur_offset > sgc->exp_offset ) */
+ /*
+ * we don't expect the caller to skip ahead.
+ * cur_offset will never exceed the len we return
+ */
+ len = 0;
+ }
+
+ return len;
+}
+
+int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
+{
+ struct esas2r_adapter *a =
+ (struct esas2r_adapter *)cmd->device->host->hostdata;
+ struct esas2r_request *rq;
+ struct esas2r_sg_context sgc;
+ unsigned bufflen;
+
+ /* Assume success, if it fails we will fix the result later. */
+ cmd->result = DID_OK << 16;
+
+ if (unlikely(a->flags & AF_DEGRADED_MODE)) {
+ cmd->result = DID_NO_CONNECT << 16;
+ cmd->scsi_done(cmd);
+ return 0;
+ }
+
+ rq = esas2r_alloc_request(a);
+ if (unlikely(rq == NULL)) {
+ esas2r_debug("esas2r_alloc_request failed");
+ return SCSI_MLQUEUE_HOST_BUSY;
+ }
+
+ rq->cmd = cmd;
+ bufflen = scsi_bufflen(cmd);
+
+ if (likely(bufflen != 0)) {
+ if (cmd->sc_data_direction == DMA_TO_DEVICE)
+ rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_WRD);
+ else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
+ rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_RDD);
+ }
+
+ memcpy(rq->vrq->scsi.cdb, cmd->cmnd, cmd->cmd_len);
+ rq->vrq->scsi.length = cpu_to_le32(bufflen);
+ rq->target_id = cmd->device->id;
+ rq->vrq->scsi.flags |= cpu_to_le32(cmd->device->lun);
+ rq->sense_buf = cmd->sense_buffer;
+ rq->sense_len = SCSI_SENSE_BUFFERSIZE;
+
+ esas2r_sgc_init(&sgc, a, rq, NULL);
+
+ sgc.length = bufflen;
+ sgc.cur_offset = NULL;
+
+ sgc.cur_sgel = scsi_sglist(cmd);
+ sgc.exp_offset = NULL;
+ sgc.num_sgel = scsi_dma_map(cmd);
+ sgc.sgel_count = 0;
+
+ if (unlikely(sgc.num_sgel < 0)) {
+ esas2r_free_request(a, rq);
+ return SCSI_MLQUEUE_HOST_BUSY;
+ }
+
+ sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_from_sgc;
+
+ if (unlikely(!esas2r_build_sg_list(a, rq, &sgc))) {
+ scsi_dma_unmap(cmd);
+ esas2r_free_request(a, rq);
+ return SCSI_MLQUEUE_HOST_BUSY;
+ }
+
+ esas2r_debug("start request %p to %d:%d\n", rq, (int)cmd->device->id,
+ (int)cmd->device->lun);
+
+ esas2r_start_request(a, rq);
+
+ return 0;
+}
+
+static void complete_task_management_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ (*rq->task_management_status_ptr) = rq->req_stat;
+ esas2r_free_request(a, rq);
+}
+
+/**
+ * Searches the specified queue for the specified queue for the command
+ * to abort.
+ *
+ * @param [in] a
+ * @param [in] abort_request
+ * @param [in] cmd
+ * t
+ * @return 0 on failure, 1 if command was not found, 2 if command was found
+ */
+static int esas2r_check_active_queue(struct esas2r_adapter *a,
+ struct esas2r_request **abort_request,
+ struct scsi_cmnd *cmd,
+ struct list_head *queue)
+{
+ bool found = false;
+ struct esas2r_request *ar = *abort_request;
+ struct esas2r_request *rq;
+ struct list_head *element, *next;
+
+ list_for_each_safe(element, next, queue) {
+
+ rq = list_entry(element, struct esas2r_request, req_list);
+
+ if (rq->cmd == cmd) {
+
+ /* Found the request. See what to do with it. */
+ if (queue == &a->active_list) {
+ /*
+ * We are searching the active queue, which
+ * means that we need to send an abort request
+ * to the firmware.
+ */
+ ar = esas2r_alloc_request(a);
+ if (ar == NULL) {
+ esas2r_log_dev(ESAS2R_LOG_WARN,
+ &(a->host->shost_gendev),
+ "unable to allocate an abort request for cmd %p",
+ cmd);
+ return 0; /* Failure */
+ }
+
+ /*
+ * Task management request must be formatted
+ * with a lock held.
+ */
+ ar->sense_len = 0;
+ ar->vrq->scsi.length = 0;
+ ar->target_id = rq->target_id;
+ ar->vrq->scsi.flags |= cpu_to_le32(
+ (u8)le32_to_cpu(rq->vrq->scsi.flags));
+
+ memset(ar->vrq->scsi.cdb, 0,
+ sizeof(ar->vrq->scsi.cdb));
+
+ ar->vrq->scsi.flags |= cpu_to_le32(
+ FCP_CMND_TRM);
+ ar->vrq->scsi.u.abort_handle =
+ rq->vrq->scsi.handle;
+ } else {
+ /*
+ * The request is pending but not active on
+ * the firmware. Just free it now and we'll
+ * report the successful abort below.
+ */
+ list_del_init(&rq->req_list);
+ esas2r_free_request(a, rq);
+ }
+
+ found = true;
+ break;
+ }
+
+ }
+
+ if (!found)
+ return 1; /* Not found */
+
+ return 2; /* found */
+
+
+}
+
+int esas2r_eh_abort(struct scsi_cmnd *cmd)
+{
+ struct esas2r_adapter *a =
+ (struct esas2r_adapter *)cmd->device->host->hostdata;
+ struct esas2r_request *abort_request = NULL;
+ unsigned long flags;
+ struct list_head *queue;
+ int result;
+
+ esas2r_log(ESAS2R_LOG_INFO, "eh_abort (%p)", cmd);
+
+ if (a->flags & AF_DEGRADED_MODE) {
+ cmd->result = DID_ABORT << 16;
+
+ scsi_set_resid(cmd, 0);
+
+ cmd->scsi_done(cmd);
+
+ return 0;
+ }
+
+ spin_lock_irqsave(&a->queue_lock, flags);
+
+ /*
+ * Run through the defer and active queues looking for the request
+ * to abort.
+ */
+
+ queue = &a->defer_list;
+
+check_active_queue:
+
+ result = esas2r_check_active_queue(a, &abort_request, cmd, queue);
+
+ if (!result) {
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+ return FAILED;
+ } else if (result == 2 && (queue == &a->defer_list)) {
+ queue = &a->active_list;
+ goto check_active_queue;
+ }
+
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+
+ if (abort_request) {
+ u8 task_management_status = RS_PENDING;
+
+ /*
+ * the request is already active, so we need to tell
+ * the firmware to abort it and wait for the response.
+ */
+
+ abort_request->comp_cb = complete_task_management_request;
+ abort_request->task_management_status_ptr =
+ &task_management_status;
+
+ esas2r_start_request(a, abort_request);
+
+ if (atomic_read(&a->disable_cnt) == 0)
+ esas2r_do_deferred_processes(a);
+
+ while (task_management_status == RS_PENDING)
+ msleep(10);
+
+ /*
+ * Once we get here, the original request will have been
+ * completed by the firmware and the abort request will have
+ * been cleaned up. we're done!
+ */
+
+ return SUCCESS;
+ }
+
+ /*
+ * If we get here, either we found the inactive request and
+ * freed it, or we didn't find it at all. Either way, success!
+ */
+
+ cmd->result = DID_ABORT << 16;
+
+ scsi_set_resid(cmd, 0);
+
+ cmd->scsi_done(cmd);
+
+ return SUCCESS;
+}
+
+static int esas2r_host_bus_reset(struct scsi_cmnd *cmd, bool host_reset)
+{
+ struct esas2r_adapter *a =
+ (struct esas2r_adapter *)cmd->device->host->hostdata;
+
+ if (a->flags & AF_DEGRADED_MODE)
+ return FAILED;
+
+ if (host_reset)
+ esas2r_reset_adapter(a);
+ else
+ esas2r_reset_bus(a);
+
+ /* above call sets the AF_OS_RESET flag. wait for it to clear. */
+
+ while (a->flags & AF_OS_RESET) {
+ msleep(10);
+
+ if (a->flags & AF_DEGRADED_MODE)
+ return FAILED;
+ }
+
+ if (a->flags & AF_DEGRADED_MODE)
+ return FAILED;
+
+ return SUCCESS;
+}
+
+int esas2r_host_reset(struct scsi_cmnd *cmd)
+{
+ esas2r_log(ESAS2R_LOG_INFO, "host_reset (%p)", cmd);
+
+ return esas2r_host_bus_reset(cmd, true);
+}
+
+int esas2r_bus_reset(struct scsi_cmnd *cmd)
+{
+ esas2r_log(ESAS2R_LOG_INFO, "bus_reset (%p)", cmd);
+
+ return esas2r_host_bus_reset(cmd, false);
+}
+
+static int esas2r_dev_targ_reset(struct scsi_cmnd *cmd, bool target_reset)
+{
+ struct esas2r_adapter *a =
+ (struct esas2r_adapter *)cmd->device->host->hostdata;
+ struct esas2r_request *rq;
+ u8 task_management_status = RS_PENDING;
+ bool completed;
+
+ if (a->flags & AF_DEGRADED_MODE)
+ return FAILED;
+
+retry:
+ rq = esas2r_alloc_request(a);
+ if (rq == NULL) {
+ if (target_reset) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "unable to allocate a request for a "
+ "target reset (%d)!",
+ cmd->device->id);
+ } else {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "unable to allocate a request for a "
+ "device reset (%d:%d)!",
+ cmd->device->id,
+ cmd->device->lun);
+ }
+
+
+ return FAILED;
+ }
+
+ rq->target_id = cmd->device->id;
+ rq->vrq->scsi.flags |= cpu_to_le32(cmd->device->lun);
+ rq->req_stat = RS_PENDING;
+
+ rq->comp_cb = complete_task_management_request;
+ rq->task_management_status_ptr = &task_management_status;
+
+ if (target_reset) {
+ esas2r_debug("issuing target reset (%p) to id %d", rq,
+ cmd->device->id);
+ completed = esas2r_send_task_mgmt(a, rq, 0x20);
+ } else {
+ esas2r_debug("issuing device reset (%p) to id %d lun %d", rq,
+ cmd->device->id, cmd->device->lun);
+ completed = esas2r_send_task_mgmt(a, rq, 0x10);
+ }
+
+ if (completed) {
+ /* Task management cmd completed right away, need to free it. */
+
+ esas2r_free_request(a, rq);
+ } else {
+ /*
+ * Wait for firmware to complete the request. Completion
+ * callback will free it.
+ */
+ while (task_management_status == RS_PENDING)
+ msleep(10);
+ }
+
+ if (a->flags & AF_DEGRADED_MODE)
+ return FAILED;
+
+ if (task_management_status == RS_BUSY) {
+ /*
+ * Busy, probably because we are flashing. Wait a bit and
+ * try again.
+ */
+ msleep(100);
+ goto retry;
+ }
+
+ return SUCCESS;
+}
+
+int esas2r_device_reset(struct scsi_cmnd *cmd)
+{
+ esas2r_log(ESAS2R_LOG_INFO, "device_reset (%p)", cmd);
+
+ return esas2r_dev_targ_reset(cmd, false);
+
+}
+
+int esas2r_target_reset(struct scsi_cmnd *cmd)
+{
+ esas2r_log(ESAS2R_LOG_INFO, "target_reset (%p)", cmd);
+
+ return esas2r_dev_targ_reset(cmd, true);
+}
+
+int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason)
+{
+ esas2r_log(ESAS2R_LOG_INFO, "change_queue_depth %p, %d", dev, depth);
+
+ scsi_adjust_queue_depth(dev, scsi_get_tag_type(dev), depth);
+
+ return dev->queue_depth;
+}
+
+int esas2r_change_queue_type(struct scsi_device *dev, int type)
+{
+ esas2r_log(ESAS2R_LOG_INFO, "change_queue_type %p, %d", dev, type);
+
+ if (dev->tagged_supported) {
+ scsi_set_tag_type(dev, type);
+
+ if (type)
+ scsi_activate_tcq(dev, dev->queue_depth);
+ else
+ scsi_deactivate_tcq(dev, dev->queue_depth);
+ } else {
+ type = 0;
+ }
+
+ return type;
+}
+
+int esas2r_slave_alloc(struct scsi_device *dev)
+{
+ return 0;
+}
+
+int esas2r_slave_configure(struct scsi_device *dev)
+{
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(dev->sdev_gendev),
+ "esas2r_slave_configure()");
+
+ if (dev->tagged_supported) {
+ scsi_set_tag_type(dev, MSG_SIMPLE_TAG);
+ scsi_activate_tcq(dev, cmd_per_lun);
+ } else {
+ scsi_set_tag_type(dev, 0);
+ scsi_deactivate_tcq(dev, cmd_per_lun);
+ }
+
+ return 0;
+}
+
+void esas2r_slave_destroy(struct scsi_device *dev)
+{
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(dev->sdev_gendev),
+ "esas2r_slave_destroy()");
+}
+
+void esas2r_log_request_failure(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ u8 reqstatus = rq->req_stat;
+
+ if (reqstatus == RS_SUCCESS)
+ return;
+
+ if (rq->vrq->scsi.function == VDA_FUNC_SCSI) {
+ if (reqstatus == RS_SCSI_ERROR) {
+ if (rq->func_rsp.scsi_rsp.sense_len >= 13) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "request failure - SCSI error %x ASC:%x ASCQ:%x CDB:%x",
+ rq->sense_buf[2], rq->sense_buf[12],
+ rq->sense_buf[13],
+ rq->vrq->scsi.cdb[0]);
+ } else {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "request failure - SCSI error CDB:%x\n",
+ rq->vrq->scsi.cdb[0]);
+ }
+ } else if ((rq->vrq->scsi.cdb[0] != INQUIRY
+ && rq->vrq->scsi.cdb[0] != REPORT_LUNS)
+ || (reqstatus != RS_SEL
+ && reqstatus != RS_SEL2)) {
+ if ((reqstatus == RS_UNDERRUN) &&
+ (rq->vrq->scsi.cdb[0] == INQUIRY)) {
+ /* Don't log inquiry underruns */
+ } else {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "request failure - cdb:%x reqstatus:%d target:%d",
+ rq->vrq->scsi.cdb[0], reqstatus,
+ rq->target_id);
+ }
+ }
+ }
+}
+
+void esas2r_wait_request(struct esas2r_adapter *a, struct esas2r_request *rq)
+{
+ u32 starttime;
+ u32 timeout;
+
+ starttime = jiffies_to_msecs(jiffies);
+ timeout = rq->timeout ? rq->timeout : 5000;
+
+ while (true) {
+ esas2r_polled_interrupt(a);
+
+ if (rq->req_stat != RS_STARTED)
+ break;
+
+ schedule_timeout_interruptible(msecs_to_jiffies(100));
+
+ if ((jiffies_to_msecs(jiffies) - starttime) > timeout) {
+ esas2r_hdebug("request TMO");
+ esas2r_bugon();
+
+ rq->req_stat = RS_TIMEOUT;
+
+ esas2r_local_reset_adapter(a);
+ return;
+ }
+ }
+}
+
+u32 esas2r_map_data_window(struct esas2r_adapter *a, u32 addr_lo)
+{
+ u32 offset = addr_lo & (MW_DATA_WINDOW_SIZE - 1);
+ u32 base = addr_lo & -(signed int)MW_DATA_WINDOW_SIZE;
+
+ if (a->window_base != base) {
+ esas2r_write_register_dword(a, MVR_PCI_WIN1_REMAP,
+ base | MVRPW1R_ENABLE);
+ esas2r_flush_register_dword(a, MVR_PCI_WIN1_REMAP);
+ a->window_base = base;
+ }
+
+ return offset;
+}
+
+/* Read a block of data from chip memory */
+bool esas2r_read_mem_block(struct esas2r_adapter *a,
+ void *to,
+ u32 from,
+ u32 size)
+{
+ u8 *end = (u8 *)to;
+
+ while (size) {
+ u32 len;
+ u32 offset;
+ u32 iatvr;
+
+ iatvr = (from & -(signed int)MW_DATA_WINDOW_SIZE);
+
+ esas2r_map_data_window(a, iatvr);
+
+ offset = from & (MW_DATA_WINDOW_SIZE - 1);
+ len = size;
+
+ if (len > MW_DATA_WINDOW_SIZE - offset)
+ len = MW_DATA_WINDOW_SIZE - offset;
+
+ from += len;
+ size -= len;
+
+ while (len--) {
+ *end++ = esas2r_read_data_byte(a, offset);
+ offset++;
+ }
+ }
+
+ return true;
+}
+
+void esas2r_nuxi_mgt_data(u8 function, void *data)
+{
+ struct atto_vda_grp_info *g;
+ struct atto_vda_devinfo *d;
+ struct atto_vdapart_info *p;
+ struct atto_vda_dh_info *h;
+ struct atto_vda_metrics_info *m;
+ struct atto_vda_schedule_info *s;
+ struct atto_vda_buzzer_info *b;
+ u8 i;
+
+ switch (function) {
+ case VDAMGT_BUZZER_INFO:
+ case VDAMGT_BUZZER_SET:
+
+ b = (struct atto_vda_buzzer_info *)data;
+
+ b->duration = le32_to_cpu(b->duration);
+ break;
+
+ case VDAMGT_SCHEDULE_INFO:
+ case VDAMGT_SCHEDULE_EVENT:
+
+ s = (struct atto_vda_schedule_info *)data;
+
+ s->id = le32_to_cpu(s->id);
+
+ break;
+
+ case VDAMGT_DEV_INFO:
+ case VDAMGT_DEV_CLEAN:
+ case VDAMGT_DEV_PT_INFO:
+ case VDAMGT_DEV_FEATURES:
+ case VDAMGT_DEV_PT_FEATURES:
+ case VDAMGT_DEV_OPERATION:
+
+ d = (struct atto_vda_devinfo *)data;
+
+ d->capacity = le64_to_cpu(d->capacity);
+ d->block_size = le32_to_cpu(d->block_size);
+ d->ses_dev_index = le16_to_cpu(d->ses_dev_index);
+ d->target_id = le16_to_cpu(d->target_id);
+ d->lun = le16_to_cpu(d->lun);
+ d->features = le16_to_cpu(d->features);
+ break;
+
+ case VDAMGT_GRP_INFO:
+ case VDAMGT_GRP_CREATE:
+ case VDAMGT_GRP_DELETE:
+ case VDAMGT_ADD_STORAGE:
+ case VDAMGT_MEMBER_ADD:
+ case VDAMGT_GRP_COMMIT:
+ case VDAMGT_GRP_REBUILD:
+ case VDAMGT_GRP_COMMIT_INIT:
+ case VDAMGT_QUICK_RAID:
+ case VDAMGT_GRP_FEATURES:
+ case VDAMGT_GRP_COMMIT_INIT_AUTOMAP:
+ case VDAMGT_QUICK_RAID_INIT_AUTOMAP:
+ case VDAMGT_SPARE_LIST:
+ case VDAMGT_SPARE_ADD:
+ case VDAMGT_SPARE_REMOVE:
+ case VDAMGT_LOCAL_SPARE_ADD:
+ case VDAMGT_GRP_OPERATION:
+
+ g = (struct atto_vda_grp_info *)data;
+
+ g->capacity = le64_to_cpu(g->capacity);
+ g->block_size = le32_to_cpu(g->block_size);
+ g->interleave = le32_to_cpu(g->interleave);
+ g->features = le16_to_cpu(g->features);
+
+ for (i = 0; i < 32; i++)
+ g->members[i] = le16_to_cpu(g->members[i]);
+
+ break;
+
+ case VDAMGT_PART_INFO:
+ case VDAMGT_PART_MAP:
+ case VDAMGT_PART_UNMAP:
+ case VDAMGT_PART_AUTOMAP:
+ case VDAMGT_PART_SPLIT:
+ case VDAMGT_PART_MERGE:
+
+ p = (struct atto_vdapart_info *)data;
+
+ p->part_size = le64_to_cpu(p->part_size);
+ p->start_lba = le32_to_cpu(p->start_lba);
+ p->block_size = le32_to_cpu(p->block_size);
+ p->target_id = le16_to_cpu(p->target_id);
+ break;
+
+ case VDAMGT_DEV_HEALTH_REQ:
+
+ h = (struct atto_vda_dh_info *)data;
+
+ h->med_defect_cnt = le32_to_cpu(h->med_defect_cnt);
+ h->info_exc_cnt = le32_to_cpu(h->info_exc_cnt);
+ break;
+
+ case VDAMGT_DEV_METRICS:
+
+ m = (struct atto_vda_metrics_info *)data;
+
+ for (i = 0; i < 32; i++)
+ m->dev_indexes[i] = le16_to_cpu(m->dev_indexes[i]);
+
+ break;
+
+ default:
+ break;
+ }
+}
+
+void esas2r_nuxi_cfg_data(u8 function, void *data)
+{
+ struct atto_vda_cfg_init *ci;
+
+ switch (function) {
+ case VDA_CFG_INIT:
+ case VDA_CFG_GET_INIT:
+ case VDA_CFG_GET_INIT2:
+
+ ci = (struct atto_vda_cfg_init *)data;
+
+ ci->date_time.year = le16_to_cpu(ci->date_time.year);
+ ci->sgl_page_size = le32_to_cpu(ci->sgl_page_size);
+ ci->vda_version = le32_to_cpu(ci->vda_version);
+ ci->epoch_time = le32_to_cpu(ci->epoch_time);
+ ci->ioctl_tunnel = le32_to_cpu(ci->ioctl_tunnel);
+ ci->num_targets_backend = le32_to_cpu(ci->num_targets_backend);
+ break;
+
+ default:
+ break;
+ }
+}
+
+void esas2r_nuxi_ae_data(union atto_vda_ae *ae)
+{
+ struct atto_vda_ae_raid *r = &ae->raid;
+ struct atto_vda_ae_lu *l = &ae->lu;
+
+ switch (ae->hdr.bytype) {
+ case VDAAE_HDR_TYPE_RAID:
+
+ r->dwflags = le32_to_cpu(r->dwflags);
+ break;
+
+ case VDAAE_HDR_TYPE_LU:
+
+ l->dwevent = le32_to_cpu(l->dwevent);
+ l->wphys_target_id = le16_to_cpu(l->wphys_target_id);
+ l->id.tgtlun.wtarget_id = le16_to_cpu(l->id.tgtlun.wtarget_id);
+
+ if (l->hdr.bylength >= offsetof(struct atto_vda_ae_lu, id)
+ + sizeof(struct atto_vda_ae_lu_tgt_lun_raid)) {
+ l->id.tgtlun_raid.dwinterleave
+ = le32_to_cpu(l->id.tgtlun_raid.dwinterleave);
+ l->id.tgtlun_raid.dwblock_size
+ = le32_to_cpu(l->id.tgtlun_raid.dwblock_size);
+ }
+
+ break;
+
+ case VDAAE_HDR_TYPE_DISK:
+ default:
+ break;
+ }
+}
+
+void esas2r_free_request(struct esas2r_adapter *a, struct esas2r_request *rq)
+{
+ unsigned long flags;
+
+ esas2r_rq_destroy_request(rq, a);
+ spin_lock_irqsave(&a->request_lock, flags);
+ list_add(&rq->comp_list, &a->avail_request);
+ spin_unlock_irqrestore(&a->request_lock, flags);
+}
+
+struct esas2r_request *esas2r_alloc_request(struct esas2r_adapter *a)
+{
+ struct esas2r_request *rq;
+ unsigned long flags;
+
+ spin_lock_irqsave(&a->request_lock, flags);
+
+ if (unlikely(list_empty(&a->avail_request))) {
+ spin_unlock_irqrestore(&a->request_lock, flags);
+ return NULL;
+ }
+
+ rq = list_first_entry(&a->avail_request, struct esas2r_request,
+ comp_list);
+ list_del(&rq->comp_list);
+ spin_unlock_irqrestore(&a->request_lock, flags);
+ esas2r_rq_init_request(rq, a);
+
+ return rq;
+
+}
+
+void esas2r_complete_request_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ esas2r_debug("completing request %p\n", rq);
+
+ scsi_dma_unmap(rq->cmd);
+
+ if (unlikely(rq->req_stat != RS_SUCCESS)) {
+ esas2r_debug("[%x STATUS %x:%x (%x)]", rq->target_id,
+ rq->req_stat,
+ rq->func_rsp.scsi_rsp.scsi_stat,
+ rq->cmd);
+
+ rq->cmd->result =
+ ((esas2r_req_status_to_error(rq->req_stat) << 16)
+ | (rq->func_rsp.scsi_rsp.scsi_stat & STATUS_MASK));
+
+ if (rq->req_stat == RS_UNDERRUN)
+ scsi_set_resid(rq->cmd,
+ le32_to_cpu(rq->func_rsp.scsi_rsp.
+ residual_length));
+ else
+ scsi_set_resid(rq->cmd, 0);
+ }
+
+ rq->cmd->scsi_done(rq->cmd);
+
+ esas2r_free_request(a, rq);
+}
+
+/* Run tasklet to handle stuff outside of interrupt context. */
+void esas2r_adapter_tasklet(unsigned long context)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)context;
+
+ if (unlikely(a->flags2 & AF2_TIMER_TICK)) {
+ esas2r_lock_clear_flags(&a->flags2, AF2_TIMER_TICK);
+ esas2r_timer_tick(a);
+ }
+
+ if (likely(a->flags2 & AF2_INT_PENDING)) {
+ esas2r_lock_clear_flags(&a->flags2, AF2_INT_PENDING);
+ esas2r_adapter_interrupt(a);
+ }
+
+ if (esas2r_is_tasklet_pending(a))
+ esas2r_do_tasklet_tasks(a);
+
+ if (esas2r_is_tasklet_pending(a)
+ || (a->flags2 & AF2_INT_PENDING)
+ || (a->flags2 & AF2_TIMER_TICK)) {
+ esas2r_lock_clear_flags(&a->flags, AF_TASKLET_SCHEDULED);
+ esas2r_schedule_tasklet(a);
+ } else {
+ esas2r_lock_clear_flags(&a->flags, AF_TASKLET_SCHEDULED);
+ }
+}
+
+static void esas2r_timer_callback(unsigned long context);
+
+void esas2r_kickoff_timer(struct esas2r_adapter *a)
+{
+ init_timer(&a->timer);
+
+ a->timer.function = esas2r_timer_callback;
+ a->timer.data = (unsigned long)a;
+ a->timer.expires = jiffies +
+ msecs_to_jiffies(100);
+
+ add_timer(&a->timer);
+}
+
+static void esas2r_timer_callback(unsigned long context)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)context;
+
+ esas2r_lock_set_flags(&a->flags2, AF2_TIMER_TICK);
+
+ esas2r_schedule_tasklet(a);
+
+ esas2r_kickoff_timer(a);
+}
+
+/*
+ * Firmware events need to be handled outside of interrupt context
+ * so we schedule a delayed_work to handle them.
+ */
+
+static void
+esas2r_free_fw_event(struct esas2r_fw_event_work *fw_event)
+{
+ unsigned long flags;
+ struct esas2r_adapter *a = fw_event->a;
+
+ spin_lock_irqsave(&a->fw_event_lock, flags);
+ list_del(&fw_event->list);
+ kfree(fw_event);
+ spin_unlock_irqrestore(&a->fw_event_lock, flags);
+}
+
+void
+esas2r_fw_event_off(struct esas2r_adapter *a)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&a->fw_event_lock, flags);
+ a->fw_events_off = 1;
+ spin_unlock_irqrestore(&a->fw_event_lock, flags);
+}
+
+void
+esas2r_fw_event_on(struct esas2r_adapter *a)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&a->fw_event_lock, flags);
+ a->fw_events_off = 0;
+ spin_unlock_irqrestore(&a->fw_event_lock, flags);
+}
+
+static void esas2r_add_device(struct esas2r_adapter *a, u16 target_id)
+{
+ int ret;
+ struct scsi_device *scsi_dev;
+
+ scsi_dev = scsi_device_lookup(a->host, 0, target_id, 0);
+
+ if (scsi_dev) {
+ esas2r_log_dev(
+ ESAS2R_LOG_WARN,
+ &(scsi_dev->
+ sdev_gendev),
+ "scsi device already exists at id %d", target_id);
+
+ scsi_device_put(scsi_dev);
+ } else {
+ esas2r_log_dev(
+ ESAS2R_LOG_INFO,
+ &(a->host->
+ shost_gendev),
+ "scsi_add_device() called for 0:%d:0",
+ target_id);
+
+ ret = scsi_add_device(a->host, 0, target_id, 0);
+ if (ret) {
+ esas2r_log_dev(
+ ESAS2R_LOG_CRIT,
+ &(a->host->
+ shost_gendev),
+ "scsi_add_device failed with %d for id %d",
+ ret, target_id);
+ }
+ }
+}
+
+static void esas2r_remove_device(struct esas2r_adapter *a, u16 target_id)
+{
+ struct scsi_device *scsi_dev;
+
+ scsi_dev = scsi_device_lookup(a->host, 0, target_id, 0);
+
+ if (scsi_dev) {
+ scsi_device_set_state(scsi_dev, SDEV_OFFLINE);
+
+ esas2r_log_dev(
+ ESAS2R_LOG_INFO,
+ &(scsi_dev->
+ sdev_gendev),
+ "scsi_remove_device() called for 0:%d:0",
+ target_id);
+
+ scsi_remove_device(scsi_dev);
+
+ esas2r_log_dev(
+ ESAS2R_LOG_INFO,
+ &(scsi_dev->
+ sdev_gendev),
+ "scsi_device_put() called");
+
+ scsi_device_put(scsi_dev);
+ } else {
+ esas2r_log_dev(
+ ESAS2R_LOG_WARN,
+ &(a->host->shost_gendev),
+ "no target found at id %d",
+ target_id);
+ }
+}
+
+/*
+ * Sends a firmware asynchronous event to anyone who happens to be
+ * listening on the defined ATTO VDA event ports.
+ */
+static void esas2r_send_ae_event(struct esas2r_fw_event_work *fw_event)
+{
+ struct esas2r_vda_ae *ae = (struct esas2r_vda_ae *)fw_event->data;
+ char *type;
+
+ switch (ae->vda_ae.hdr.bytype) {
+ case VDAAE_HDR_TYPE_RAID:
+ type = "RAID group state change";
+ break;
+
+ case VDAAE_HDR_TYPE_LU:
+ type = "Mapped destination LU change";
+ break;
+
+ case VDAAE_HDR_TYPE_DISK:
+ type = "Physical disk inventory change";
+ break;
+
+ case VDAAE_HDR_TYPE_RESET:
+ type = "Firmware reset";
+ break;
+
+ case VDAAE_HDR_TYPE_LOG_INFO:
+ type = "Event Log message (INFO level)";
+ break;
+
+ case VDAAE_HDR_TYPE_LOG_WARN:
+ type = "Event Log message (WARN level)";
+ break;
+
+ case VDAAE_HDR_TYPE_LOG_CRIT:
+ type = "Event Log message (CRIT level)";
+ break;
+
+ case VDAAE_HDR_TYPE_LOG_FAIL:
+ type = "Event Log message (FAIL level)";
+ break;
+
+ case VDAAE_HDR_TYPE_NVC:
+ type = "NVCache change";
+ break;
+
+ case VDAAE_HDR_TYPE_TLG_INFO:
+ type = "Time stamped log message (INFO level)";
+ break;
+
+ case VDAAE_HDR_TYPE_TLG_WARN:
+ type = "Time stamped log message (WARN level)";
+ break;
+
+ case VDAAE_HDR_TYPE_TLG_CRIT:
+ type = "Time stamped log message (CRIT level)";
+ break;
+
+ case VDAAE_HDR_TYPE_PWRMGT:
+ type = "Power management";
+ break;
+
+ case VDAAE_HDR_TYPE_MUTE:
+ type = "Mute button pressed";
+ break;
+
+ case VDAAE_HDR_TYPE_DEV:
+ type = "Device attribute change";
+ break;
+
+ default:
+ type = "Unknown";
+ break;
+ }
+
+ esas2r_log(ESAS2R_LOG_WARN,
+ "An async event of type \"%s\" was received from the firmware. The event contents are:",
+ type);
+ esas2r_log_hexdump(ESAS2R_LOG_WARN, &ae->vda_ae,
+ ae->vda_ae.hdr.bylength);
+
+}
+
+static void
+esas2r_firmware_event_work(struct work_struct *work)
+{
+ struct esas2r_fw_event_work *fw_event =
+ container_of(work, struct esas2r_fw_event_work, work.work);
+
+ struct esas2r_adapter *a = fw_event->a;
+
+ u16 target_id = *(u16 *)&fw_event->data[0];
+
+ if (a->fw_events_off)
+ goto done;
+
+ switch (fw_event->type) {
+ case fw_event_null:
+ break; /* do nothing */
+
+ case fw_event_lun_change:
+ esas2r_remove_device(a, target_id);
+ esas2r_add_device(a, target_id);
+ break;
+
+ case fw_event_present:
+ esas2r_add_device(a, target_id);
+ break;
+
+ case fw_event_not_present:
+ esas2r_remove_device(a, target_id);
+ break;
+
+ case fw_event_vda_ae:
+ esas2r_send_ae_event(fw_event);
+ break;
+ }
+
+done:
+ esas2r_free_fw_event(fw_event);
+}
+
+void esas2r_queue_fw_event(struct esas2r_adapter *a,
+ enum fw_event_type type,
+ void *data,
+ int data_sz)
+{
+ struct esas2r_fw_event_work *fw_event;
+ unsigned long flags;
+
+ fw_event = kzalloc(sizeof(struct esas2r_fw_event_work), GFP_ATOMIC);
+ if (!fw_event) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "esas2r_queue_fw_event failed to alloc");
+ return;
+ }
+
+ if (type == fw_event_vda_ae) {
+ struct esas2r_vda_ae *ae =
+ (struct esas2r_vda_ae *)fw_event->data;
+
+ ae->signature = ESAS2R_VDA_EVENT_SIG;
+ ae->bus_number = a->pcid->bus->number;
+ ae->devfn = a->pcid->devfn;
+ memcpy(&ae->vda_ae, data, sizeof(ae->vda_ae));
+ } else {
+ memcpy(fw_event->data, data, data_sz);
+ }
+
+ fw_event->type = type;
+ fw_event->a = a;
+
+ spin_lock_irqsave(&a->fw_event_lock, flags);
+ list_add_tail(&fw_event->list, &a->fw_event_list);
+ INIT_DELAYED_WORK(&fw_event->work, esas2r_firmware_event_work);
+ queue_delayed_work_on(
+ smp_processor_id(), a->fw_event_q, &fw_event->work,
+ msecs_to_jiffies(1));
+ spin_unlock_irqrestore(&a->fw_event_lock, flags);
+}
+
+void esas2r_target_state_changed(struct esas2r_adapter *a, u16 targ_id,
+ u8 state)
+{
+ if (state == TS_LUN_CHANGE)
+ esas2r_queue_fw_event(a, fw_event_lun_change, &targ_id,
+ sizeof(targ_id));
+ else if (state == TS_PRESENT)
+ esas2r_queue_fw_event(a, fw_event_present, &targ_id,
+ sizeof(targ_id));
+ else if (state == TS_NOT_PRESENT)
+ esas2r_queue_fw_event(a, fw_event_not_present, &targ_id,
+ sizeof(targ_id));
+}
+
+/* Translate status to a Linux SCSI mid-layer error code */
+int esas2r_req_status_to_error(u8 req_stat)
+{
+ switch (req_stat) {
+ case RS_OVERRUN:
+ case RS_UNDERRUN:
+ case RS_SUCCESS:
+ /*
+ * NOTE: SCSI mid-layer wants a good status for a SCSI error, because
+ * it will check the scsi_stat value in the completion anyway.
+ */
+ case RS_SCSI_ERROR:
+ return DID_OK;
+
+ case RS_SEL:
+ case RS_SEL2:
+ return DID_NO_CONNECT;
+
+ case RS_RESET:
+ return DID_RESET;
+
+ case RS_ABORTED:
+ return DID_ABORT;
+
+ case RS_BUSY:
+ return DID_BUS_BUSY;
+ }
+
+ /* everything else is just an error. */
+
+ return DID_ERROR;
+}
+
+module_init(esas2r_init);
+module_exit(esas2r_exit);
--
1.8.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v4 03/10] SCSI: esas2r: Add initialization functions
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
2013-08-23 14:35 ` [PATCH v4 01/10] SCSI: esas2r: Add main header file Bradley Grove
2013-08-23 14:35 ` [PATCH v4 02/10] SCSI: esas2r: Add main file Bradley Grove
@ 2013-08-23 14:35 ` Bradley Grove
2013-08-23 14:35 ` [PATCH v4 04/10] SCSI: esas2r: Add device discovery and logging functions Bradley Grove
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Bradley Grove @ 2013-08-23 14:35 UTC (permalink / raw)
To: linux-scsi, jbottomley; +Cc: jseba, Bradley Grove
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
drivers/scsi/esas2r/esas2r_init.c | 1773 +++++++++++++++++++++++++++++++++++++
1 file changed, 1773 insertions(+)
create mode 100644 drivers/scsi/esas2r/esas2r_init.c
diff --git a/drivers/scsi/esas2r/esas2r_init.c b/drivers/scsi/esas2r/esas2r_init.c
new file mode 100644
index 0000000..3a798e7
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_init.c
@@ -0,0 +1,1773 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r_init.c
+ * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)mpt3sas/mpt3sas_trigger_diag.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
+#include "esas2r.h"
+
+static bool esas2r_initmem_alloc(struct esas2r_adapter *a,
+ struct esas2r_mem_desc *mem_desc,
+ u32 align)
+{
+ mem_desc->esas2r_param = mem_desc->size + align;
+ mem_desc->virt_addr = NULL;
+ mem_desc->phys_addr = 0;
+ mem_desc->esas2r_data = dma_alloc_coherent(&a->pcid->dev,
+ (size_t)mem_desc->
+ esas2r_param,
+ (dma_addr_t *)&mem_desc->
+ phys_addr,
+ GFP_KERNEL);
+
+ if (mem_desc->esas2r_data == NULL) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "failed to allocate %lu bytes of consistent memory!",
+ (long
+ unsigned
+ int)mem_desc->esas2r_param);
+ return false;
+ }
+
+ mem_desc->virt_addr = PTR_ALIGN(mem_desc->esas2r_data, align);
+ mem_desc->phys_addr = ALIGN(mem_desc->phys_addr, align);
+ memset(mem_desc->virt_addr, 0, mem_desc->size);
+ return true;
+}
+
+static void esas2r_initmem_free(struct esas2r_adapter *a,
+ struct esas2r_mem_desc *mem_desc)
+{
+ if (mem_desc->virt_addr == NULL)
+ return;
+
+ /*
+ * Careful! phys_addr and virt_addr may have been adjusted from the
+ * original allocation in order to return the desired alignment. That
+ * means we have to use the original address (in esas2r_data) and size
+ * (esas2r_param) and calculate the original physical address based on
+ * the difference between the requested and actual allocation size.
+ */
+ if (mem_desc->phys_addr) {
+ int unalign = ((u8 *)mem_desc->virt_addr) -
+ ((u8 *)mem_desc->esas2r_data);
+
+ dma_free_coherent(&a->pcid->dev,
+ (size_t)mem_desc->esas2r_param,
+ mem_desc->esas2r_data,
+ (dma_addr_t)(mem_desc->phys_addr - unalign));
+ } else {
+ kfree(mem_desc->esas2r_data);
+ }
+
+ mem_desc->virt_addr = NULL;
+}
+
+static bool alloc_vda_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_mem_desc *memdesc = kzalloc(
+ sizeof(struct esas2r_mem_desc), GFP_KERNEL);
+
+ if (memdesc == NULL) {
+ esas2r_hdebug("could not alloc mem for vda request memdesc\n");
+ return false;
+ }
+
+ memdesc->size = sizeof(union atto_vda_req) +
+ ESAS2R_DATA_BUF_LEN;
+
+ if (!esas2r_initmem_alloc(a, memdesc, 256)) {
+ esas2r_hdebug("could not alloc mem for vda request\n");
+ kfree(memdesc);
+ return false;
+ }
+
+ a->num_vrqs++;
+ list_add(&memdesc->next_desc, &a->vrq_mds_head);
+
+ rq->vrq_md = memdesc;
+ rq->vrq = (union atto_vda_req *)memdesc->virt_addr;
+ rq->vrq->scsi.handle = a->num_vrqs;
+
+ return true;
+}
+
+static void esas2r_unmap_regions(struct esas2r_adapter *a)
+{
+ if (a->regs)
+ iounmap((void __iomem *)a->regs);
+
+ a->regs = NULL;
+
+ pci_release_region(a->pcid, 2);
+
+ if (a->data_window)
+ iounmap((void __iomem *)a->data_window);
+
+ a->data_window = NULL;
+
+ pci_release_region(a->pcid, 0);
+}
+
+static int esas2r_map_regions(struct esas2r_adapter *a)
+{
+ int error;
+
+ a->regs = NULL;
+ a->data_window = NULL;
+
+ error = pci_request_region(a->pcid, 2, a->name);
+ if (error != 0) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "pci_request_region(2) failed, error %d",
+ error);
+
+ return error;
+ }
+
+ a->regs = (void __force *)ioremap(pci_resource_start(a->pcid, 2),
+ pci_resource_len(a->pcid, 2));
+ if (a->regs == NULL) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "ioremap failed for regs mem region\n");
+ pci_release_region(a->pcid, 2);
+ return -EFAULT;
+ }
+
+ error = pci_request_region(a->pcid, 0, a->name);
+ if (error != 0) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "pci_request_region(2) failed, error %d",
+ error);
+ esas2r_unmap_regions(a);
+ return error;
+ }
+
+ a->data_window = (void __force *)ioremap(pci_resource_start(a->pcid,
+ 0),
+ pci_resource_len(a->pcid, 0));
+ if (a->data_window == NULL) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "ioremap failed for data_window mem region\n");
+ esas2r_unmap_regions(a);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static void esas2r_setup_interrupts(struct esas2r_adapter *a, int intr_mode)
+{
+ int i;
+
+ /* Set up interrupt mode based on the requested value */
+ switch (intr_mode) {
+ case INTR_MODE_LEGACY:
+use_legacy_interrupts:
+ a->intr_mode = INTR_MODE_LEGACY;
+ break;
+
+ case INTR_MODE_MSI:
+ i = pci_enable_msi(a->pcid);
+ if (i != 0) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "failed to enable MSI for adapter %d, "
+ "falling back to legacy interrupts "
+ "(err=%d)", a->index,
+ i);
+ goto use_legacy_interrupts;
+ }
+ a->intr_mode = INTR_MODE_MSI;
+ esas2r_lock_set_flags(&a->flags2, AF2_MSI_ENABLED);
+ break;
+
+
+ default:
+ esas2r_log(ESAS2R_LOG_WARN,
+ "unknown interrupt_mode %d requested, "
+ "falling back to legacy interrupt",
+ interrupt_mode);
+ goto use_legacy_interrupts;
+ }
+}
+
+static void esas2r_claim_interrupts(struct esas2r_adapter *a)
+{
+ unsigned long flags = IRQF_DISABLED;
+
+ if (a->intr_mode == INTR_MODE_LEGACY)
+ flags |= IRQF_SHARED;
+
+ esas2r_log(ESAS2R_LOG_INFO,
+ "esas2r_claim_interrupts irq=%d (%p, %s, %x)",
+ a->pcid->irq, a, a->name, flags);
+
+ if (request_irq(a->pcid->irq,
+ (a->intr_mode ==
+ INTR_MODE_LEGACY) ? esas2r_interrupt :
+ esas2r_msi_interrupt,
+ flags,
+ a->name,
+ a)) {
+ esas2r_log(ESAS2R_LOG_CRIT, "unable to request IRQ %02X",
+ a->pcid->irq);
+ return;
+ }
+
+ esas2r_lock_set_flags(&a->flags2, AF2_IRQ_CLAIMED);
+ esas2r_log(ESAS2R_LOG_INFO,
+ "claimed IRQ %d flags: 0x%lx",
+ a->pcid->irq, flags);
+}
+
+int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid,
+ int index)
+{
+ struct esas2r_adapter *a;
+ u64 bus_addr = 0;
+ int i;
+ void *next_uncached;
+ struct esas2r_request *first_request, *last_request;
+
+ if (index >= MAX_ADAPTERS) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "tried to init invalid adapter index %u!",
+ index);
+ return 0;
+ }
+
+ if (esas2r_adapters[index]) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "tried to init existing adapter index %u!",
+ index);
+ return 0;
+ }
+
+ a = (struct esas2r_adapter *)host->hostdata;
+ memset(a, 0, sizeof(struct esas2r_adapter));
+ a->pcid = pcid;
+ a->host = host;
+
+ if (sizeof(dma_addr_t) > 4) {
+ const uint64_t required_mask = dma_get_required_mask
+ (&pcid->dev);
+ if (required_mask > DMA_BIT_MASK(32)
+ && !pci_set_dma_mask(pcid, DMA_BIT_MASK(64))
+ && !pci_set_consistent_dma_mask(pcid,
+ DMA_BIT_MASK(64))) {
+ esas2r_log_dev(ESAS2R_LOG_INFO,
+ &(a->pcid->dev),
+ "64-bit PCI addressing enabled\n");
+ } else if (!pci_set_dma_mask(pcid, DMA_BIT_MASK(32))
+ && !pci_set_consistent_dma_mask(pcid,
+ DMA_BIT_MASK(32))) {
+ esas2r_log_dev(ESAS2R_LOG_INFO,
+ &(a->pcid->dev),
+ "32-bit PCI addressing enabled\n");
+ } else {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "failed to set DMA mask");
+ esas2r_kill_adapter(index);
+ return 0;
+ }
+ } else {
+ if (!pci_set_dma_mask(pcid, DMA_BIT_MASK(32))
+ && !pci_set_consistent_dma_mask(pcid,
+ DMA_BIT_MASK(32))) {
+ esas2r_log_dev(ESAS2R_LOG_INFO,
+ &(a->pcid->dev),
+ "32-bit PCI addressing enabled\n");
+ } else {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "failed to set DMA mask");
+ esas2r_kill_adapter(index);
+ return 0;
+ }
+ }
+ esas2r_adapters[index] = a;
+ sprintf(a->name, ESAS2R_DRVR_NAME "_%02d", index);
+ esas2r_debug("new adapter %p, name %s", a, a->name);
+ spin_lock_init(&a->request_lock);
+ spin_lock_init(&a->fw_event_lock);
+ sema_init(&a->fm_api_semaphore, 1);
+ sema_init(&a->fs_api_semaphore, 1);
+ sema_init(&a->nvram_semaphore, 1);
+
+ esas2r_fw_event_off(a);
+ snprintf(a->fw_event_q_name, ESAS2R_KOBJ_NAME_LEN, "esas2r/%d",
+ a->index);
+ a->fw_event_q = create_singlethread_workqueue(a->fw_event_q_name);
+
+ init_waitqueue_head(&a->buffered_ioctl_waiter);
+ init_waitqueue_head(&a->nvram_waiter);
+ init_waitqueue_head(&a->fm_api_waiter);
+ init_waitqueue_head(&a->fs_api_waiter);
+ init_waitqueue_head(&a->vda_waiter);
+
+ INIT_LIST_HEAD(&a->general_req.req_list);
+ INIT_LIST_HEAD(&a->active_list);
+ INIT_LIST_HEAD(&a->defer_list);
+ INIT_LIST_HEAD(&a->free_sg_list_head);
+ INIT_LIST_HEAD(&a->avail_request);
+ INIT_LIST_HEAD(&a->vrq_mds_head);
+ INIT_LIST_HEAD(&a->fw_event_list);
+
+ first_request = (struct esas2r_request *)((u8 *)(a + 1));
+
+ for (last_request = first_request, i = 1; i < num_requests;
+ last_request++, i++) {
+ INIT_LIST_HEAD(&last_request->req_list);
+ list_add_tail(&last_request->comp_list, &a->avail_request);
+ if (!alloc_vda_req(a, last_request)) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "failed to allocate a VDA request!");
+ esas2r_kill_adapter(index);
+ return 0;
+ }
+ }
+
+ esas2r_debug("requests: %p to %p (%d, %d)", first_request,
+ last_request,
+ sizeof(*first_request),
+ num_requests);
+
+ if (esas2r_map_regions(a) != 0) {
+ esas2r_log(ESAS2R_LOG_CRIT, "could not map PCI regions!");
+ esas2r_kill_adapter(index);
+ return 0;
+ }
+
+ a->index = index;
+
+ /* interrupts will be disabled until we are done with init */
+ atomic_inc(&a->dis_ints_cnt);
+ atomic_inc(&a->disable_cnt);
+ a->flags |= AF_CHPRST_PENDING
+ | AF_DISC_PENDING
+ | AF_FIRST_INIT
+ | AF_LEGACY_SGE_MODE;
+
+ a->init_msg = ESAS2R_INIT_MSG_START;
+ a->max_vdareq_size = 128;
+ a->build_sgl = esas2r_build_sg_list_sge;
+
+ esas2r_setup_interrupts(a, interrupt_mode);
+
+ a->uncached_size = esas2r_get_uncached_size(a);
+ a->uncached = dma_alloc_coherent(&pcid->dev,
+ (size_t)a->uncached_size,
+ (dma_addr_t *)&bus_addr,
+ GFP_KERNEL);
+ if (a->uncached == NULL) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "failed to allocate %d bytes of consistent memory!",
+ a->uncached_size);
+ esas2r_kill_adapter(index);
+ return 0;
+ }
+
+ a->uncached_phys = bus_addr;
+
+ esas2r_debug("%d bytes uncached memory allocated @ %p (%x:%x)",
+ a->uncached_size,
+ a->uncached,
+ upper_32_bits(bus_addr),
+ lower_32_bits(bus_addr));
+ memset(a->uncached, 0, a->uncached_size);
+ next_uncached = a->uncached;
+
+ if (!esas2r_init_adapter_struct(a,
+ &next_uncached)) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "failed to initialize adapter structure (2)!");
+ esas2r_kill_adapter(index);
+ return 0;
+ }
+
+ tasklet_init(&a->tasklet,
+ esas2r_adapter_tasklet,
+ (unsigned long)a);
+
+ /*
+ * Disable chip interrupts to prevent spurious interrupts
+ * until we claim the IRQ.
+ */
+ esas2r_disable_chip_interrupts(a);
+ esas2r_check_adapter(a);
+
+ if (!esas2r_init_adapter_hw(a, true))
+ esas2r_log(ESAS2R_LOG_CRIT, "failed to initialize hardware!");
+ else
+ esas2r_debug("esas2r_init_adapter ok");
+
+ esas2r_claim_interrupts(a);
+
+ if (a->flags2 & AF2_IRQ_CLAIMED)
+ esas2r_enable_chip_interrupts(a);
+
+ esas2r_lock_set_flags(&a->flags2, AF2_INIT_DONE);
+ if (!(a->flags & AF_DEGRADED_MODE))
+ esas2r_kickoff_timer(a);
+ esas2r_debug("esas2r_init_adapter done for %p (%d)",
+ a, a->disable_cnt);
+
+ return 1;
+}
+
+static void esas2r_adapter_power_down(struct esas2r_adapter *a,
+ int power_management)
+{
+ struct esas2r_mem_desc *memdesc, *next;
+
+ if ((a->flags2 & AF2_INIT_DONE)
+ && (!(a->flags & AF_DEGRADED_MODE))) {
+ if (!power_management) {
+ del_timer_sync(&a->timer);
+ tasklet_kill(&a->tasklet);
+ }
+ esas2r_power_down(a);
+
+ /*
+ * There are versions of firmware that do not handle the sync
+ * cache command correctly. Stall here to ensure that the
+ * cache is lazily flushed.
+ */
+ mdelay(500);
+ esas2r_debug("chip halted");
+ }
+
+ /* Remove sysfs binary files */
+ if (a->sysfs_fw_created) {
+ sysfs_remove_bin_file(&a->host->shost_dev.kobj, &bin_attr_fw);
+ a->sysfs_fw_created = 0;
+ }
+
+ if (a->sysfs_fs_created) {
+ sysfs_remove_bin_file(&a->host->shost_dev.kobj, &bin_attr_fs);
+ a->sysfs_fs_created = 0;
+ }
+
+ if (a->sysfs_vda_created) {
+ sysfs_remove_bin_file(&a->host->shost_dev.kobj, &bin_attr_vda);
+ a->sysfs_vda_created = 0;
+ }
+
+ if (a->sysfs_hw_created) {
+ sysfs_remove_bin_file(&a->host->shost_dev.kobj, &bin_attr_hw);
+ a->sysfs_hw_created = 0;
+ }
+
+ if (a->sysfs_live_nvram_created) {
+ sysfs_remove_bin_file(&a->host->shost_dev.kobj,
+ &bin_attr_live_nvram);
+ a->sysfs_live_nvram_created = 0;
+ }
+
+ if (a->sysfs_default_nvram_created) {
+ sysfs_remove_bin_file(&a->host->shost_dev.kobj,
+ &bin_attr_default_nvram);
+ a->sysfs_default_nvram_created = 0;
+ }
+
+ /* Clean up interrupts */
+ if (a->flags2 & AF2_IRQ_CLAIMED) {
+ esas2r_log_dev(ESAS2R_LOG_INFO,
+ &(a->pcid->dev),
+ "free_irq(%d) called", a->pcid->irq);
+
+ free_irq(a->pcid->irq, a);
+ esas2r_debug("IRQ released");
+ esas2r_lock_clear_flags(&a->flags2, AF2_IRQ_CLAIMED);
+ }
+
+ if (a->flags2 & AF2_MSI_ENABLED) {
+ pci_disable_msi(a->pcid);
+ esas2r_lock_clear_flags(&a->flags2, AF2_MSI_ENABLED);
+ esas2r_debug("MSI disabled");
+ }
+
+ if (a->inbound_list_md.virt_addr)
+ esas2r_initmem_free(a, &a->inbound_list_md);
+
+ if (a->outbound_list_md.virt_addr)
+ esas2r_initmem_free(a, &a->outbound_list_md);
+
+ list_for_each_entry_safe(memdesc, next, &a->free_sg_list_head,
+ next_desc) {
+ esas2r_initmem_free(a, memdesc);
+ }
+
+ /* Following frees everything allocated via alloc_vda_req */
+ list_for_each_entry_safe(memdesc, next, &a->vrq_mds_head, next_desc) {
+ esas2r_initmem_free(a, memdesc);
+ list_del(&memdesc->next_desc);
+ kfree(memdesc);
+ }
+
+ kfree(a->first_ae_req);
+ a->first_ae_req = NULL;
+
+ kfree(a->sg_list_mds);
+ a->sg_list_mds = NULL;
+
+ kfree(a->req_table);
+ a->req_table = NULL;
+
+ if (a->regs) {
+ esas2r_unmap_regions(a);
+ a->regs = NULL;
+ a->data_window = NULL;
+ esas2r_debug("regions unmapped");
+ }
+}
+
+/* Release/free allocated resources for specified adapters. */
+void esas2r_kill_adapter(int i)
+{
+ struct esas2r_adapter *a = esas2r_adapters[i];
+
+ if (a) {
+ unsigned long flags;
+ struct workqueue_struct *wq;
+ esas2r_debug("killing adapter %p [%d] ", a, i);
+ esas2r_fw_event_off(a);
+ esas2r_adapter_power_down(a, 0);
+ if (esas2r_buffered_ioctl &&
+ (a->pcid == esas2r_buffered_ioctl_pcid)) {
+ dma_free_coherent(&a->pcid->dev,
+ (size_t)esas2r_buffered_ioctl_size,
+ esas2r_buffered_ioctl,
+ esas2r_buffered_ioctl_addr);
+ esas2r_buffered_ioctl = NULL;
+ }
+
+ if (a->vda_buffer) {
+ dma_free_coherent(&a->pcid->dev,
+ (size_t)VDA_MAX_BUFFER_SIZE,
+ a->vda_buffer,
+ (dma_addr_t)a->ppvda_buffer);
+ a->vda_buffer = NULL;
+ }
+ if (a->fs_api_buffer) {
+ dma_free_coherent(&a->pcid->dev,
+ (size_t)a->fs_api_buffer_size,
+ a->fs_api_buffer,
+ (dma_addr_t)a->ppfs_api_buffer);
+ a->fs_api_buffer = NULL;
+ }
+
+ kfree(a->local_atto_ioctl);
+ a->local_atto_ioctl = NULL;
+
+ spin_lock_irqsave(&a->fw_event_lock, flags);
+ wq = a->fw_event_q;
+ a->fw_event_q = NULL;
+ spin_unlock_irqrestore(&a->fw_event_lock, flags);
+ if (wq)
+ destroy_workqueue(wq);
+
+ if (a->uncached) {
+ dma_free_coherent(&a->pcid->dev,
+ (size_t)a->uncached_size,
+ a->uncached,
+ (dma_addr_t)a->uncached_phys);
+ a->uncached = NULL;
+ esas2r_debug("uncached area freed");
+ }
+
+ esas2r_log_dev(ESAS2R_LOG_INFO,
+ &(a->pcid->dev),
+ "pci_disable_device() called. msix_enabled: %d "
+ "msi_enabled: %d irq: %d pin: %d",
+ a->pcid->msix_enabled,
+ a->pcid->msi_enabled,
+ a->pcid->irq,
+ a->pcid->pin);
+
+ esas2r_log_dev(ESAS2R_LOG_INFO,
+ &(a->pcid->dev),
+ "before pci_disable_device() enable_cnt: %d",
+ a->pcid->enable_cnt.counter);
+
+ pci_disable_device(a->pcid);
+ esas2r_log_dev(ESAS2R_LOG_INFO,
+ &(a->pcid->dev),
+ "after pci_disable_device() enable_cnt: %d",
+ a->pcid->enable_cnt.counter);
+
+ esas2r_log_dev(ESAS2R_LOG_INFO,
+ &(a->pcid->dev),
+ "pci_set_drv_data(%p, NULL) called",
+ a->pcid);
+
+ pci_set_drvdata(a->pcid, NULL);
+ esas2r_adapters[i] = NULL;
+
+ if (a->flags2 & AF2_INIT_DONE) {
+ esas2r_lock_clear_flags(&a->flags2,
+ AF2_INIT_DONE);
+
+ esas2r_lock_set_flags(&a->flags,
+ AF_DEGRADED_MODE);
+
+ esas2r_log_dev(ESAS2R_LOG_INFO,
+ &(a->host->shost_gendev),
+ "scsi_remove_host() called");
+
+ scsi_remove_host(a->host);
+
+ esas2r_log_dev(ESAS2R_LOG_INFO,
+ &(a->host->shost_gendev),
+ "scsi_host_put() called");
+
+ scsi_host_put(a->host);
+ }
+ }
+}
+
+int esas2r_cleanup(struct Scsi_Host *host)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)host->hostdata;
+ int index;
+
+ if (host == NULL) {
+ int i;
+
+ esas2r_debug("esas2r_cleanup everything");
+ for (i = 0; i < MAX_ADAPTERS; i++)
+ esas2r_kill_adapter(i);
+ return -1;
+ }
+
+ esas2r_debug("esas2r_cleanup called for host %p", host);
+ index = a->index;
+ esas2r_kill_adapter(index);
+ return index;
+}
+
+int esas2r_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ u32 device_state;
+ struct esas2r_adapter *a = (struct esas2r_adapter *)host->hostdata;
+
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev), "suspending adapter()");
+ if (!a)
+ return -ENODEV;
+
+ esas2r_adapter_power_down(a, 1);
+ device_state = pci_choose_state(pdev, state);
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
+ "pci_save_state() called");
+ pci_save_state(pdev);
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
+ "pci_disable_device() called");
+ pci_disable_device(pdev);
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
+ "pci_set_power_state() called");
+ pci_set_power_state(pdev, device_state);
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev), "esas2r_suspend(): 0");
+ return 0;
+}
+
+int esas2r_resume(struct pci_dev *pdev)
+{
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ struct esas2r_adapter *a = (struct esas2r_adapter *)host->hostdata;
+ int rez;
+
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev), "resuming adapter()");
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
+ "pci_set_power_state(PCI_D0) "
+ "called");
+ pci_set_power_state(pdev, PCI_D0);
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
+ "pci_enable_wake(PCI_D0, 0) "
+ "called");
+ pci_enable_wake(pdev, PCI_D0, 0);
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
+ "pci_restore_state() called");
+ pci_restore_state(pdev);
+ esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
+ "pci_enable_device() called");
+ rez = pci_enable_device(pdev);
+ pci_set_master(pdev);
+
+ if (!a) {
+ rez = -ENODEV;
+ goto error_exit;
+ }
+
+ if (esas2r_map_regions(a) != 0) {
+ esas2r_log(ESAS2R_LOG_CRIT, "could not re-map PCI regions!");
+ rez = -ENOMEM;
+ goto error_exit;
+ }
+
+ /* Set up interupt mode */
+ esas2r_setup_interrupts(a, a->intr_mode);
+
+ /*
+ * Disable chip interrupts to prevent spurious interrupts until we
+ * claim the IRQ.
+ */
+ esas2r_disable_chip_interrupts(a);
+ if (!esas2r_power_up(a, true)) {
+ esas2r_debug("yikes, esas2r_power_up failed");
+ rez = -ENOMEM;
+ goto error_exit;
+ }
+
+ esas2r_claim_interrupts(a);
+
+ if (a->flags2 & AF2_IRQ_CLAIMED) {
+ /*
+ * Now that system interrupt(s) are claimed, we can enable
+ * chip interrupts.
+ */
+ esas2r_enable_chip_interrupts(a);
+ esas2r_kickoff_timer(a);
+ } else {
+ esas2r_debug("yikes, unable to claim IRQ");
+ esas2r_log(ESAS2R_LOG_CRIT, "could not re-claim IRQ!");
+ rez = -ENOMEM;
+ goto error_exit;
+ }
+
+error_exit:
+ esas2r_log_dev(ESAS2R_LOG_CRIT, &(pdev->dev), "esas2r_resume(): %d",
+ rez);
+ return rez;
+}
+
+bool esas2r_set_degraded_mode(struct esas2r_adapter *a, char *error_str)
+{
+ esas2r_lock_set_flags(&a->flags, AF_DEGRADED_MODE);
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "setting adapter to degraded mode: %s\n", error_str);
+ return false;
+}
+
+u32 esas2r_get_uncached_size(struct esas2r_adapter *a)
+{
+ return sizeof(struct esas2r_sas_nvram)
+ + ALIGN(ESAS2R_DISC_BUF_LEN, 8)
+ + ALIGN(sizeof(u32), 8) /* outbound list copy pointer */
+ + 8
+ + (num_sg_lists * (u16)sgl_page_size)
+ + ALIGN((num_requests + num_ae_requests + 1 +
+ ESAS2R_LIST_EXTRA) *
+ sizeof(struct esas2r_inbound_list_source_entry),
+ 8)
+ + ALIGN((num_requests + num_ae_requests + 1 +
+ ESAS2R_LIST_EXTRA) *
+ sizeof(struct atto_vda_ob_rsp), 8)
+ + 256; /* VDA request and buffer align */
+}
+
+static void esas2r_init_pci_cfg_space(struct esas2r_adapter *a)
+{
+ int pcie_cap_reg;
+
+ pcie_cap_reg = pci_find_capability(a->pcid, PCI_CAP_ID_EXP);
+ if (0xffff && pcie_cap_reg) {
+ u16 devcontrol;
+
+ pci_read_config_word(a->pcid, pcie_cap_reg + PCI_EXP_DEVCTL,
+ &devcontrol);
+
+ if ((devcontrol & PCI_EXP_DEVCTL_READRQ) > 0x2000) {
+ esas2r_log(ESAS2R_LOG_INFO,
+ "max read request size > 512B");
+
+ devcontrol &= ~PCI_EXP_DEVCTL_READRQ;
+ devcontrol |= 0x2000;
+ pci_write_config_word(a->pcid,
+ pcie_cap_reg + PCI_EXP_DEVCTL,
+ devcontrol);
+ }
+ }
+}
+
+/*
+ * Determine the organization of the uncached data area and
+ * finish initializing the adapter structure
+ */
+bool esas2r_init_adapter_struct(struct esas2r_adapter *a,
+ void **uncached_area)
+{
+ u32 i;
+ u8 *high;
+ struct esas2r_inbound_list_source_entry *element;
+ struct esas2r_request *rq;
+ struct esas2r_mem_desc *sgl;
+
+ spin_lock_init(&a->sg_list_lock);
+ spin_lock_init(&a->mem_lock);
+ spin_lock_init(&a->queue_lock);
+
+ a->targetdb_end = &a->targetdb[ESAS2R_MAX_TARGETS];
+
+ if (!alloc_vda_req(a, &a->general_req)) {
+ esas2r_hdebug(
+ "failed to allocate a VDA request for the general req!");
+ return false;
+ }
+
+ /* allocate requests for asynchronous events */
+ a->first_ae_req =
+ kzalloc(num_ae_requests * sizeof(struct esas2r_request),
+ GFP_KERNEL);
+
+ if (a->first_ae_req == NULL) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "failed to allocate memory for asynchronous events");
+ return false;
+ }
+
+ /* allocate the S/G list memory descriptors */
+ a->sg_list_mds = kzalloc(
+ num_sg_lists * sizeof(struct esas2r_mem_desc), GFP_KERNEL);
+
+ if (a->sg_list_mds == NULL) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "failed to allocate memory for s/g list descriptors");
+ return false;
+ }
+
+ /* allocate the request table */
+ a->req_table =
+ kzalloc((num_requests + num_ae_requests +
+ 1) * sizeof(struct esas2r_request *), GFP_KERNEL);
+
+ if (a->req_table == NULL) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "failed to allocate memory for the request table");
+ return false;
+ }
+
+ /* initialize PCI configuration space */
+ esas2r_init_pci_cfg_space(a);
+
+ /*
+ * the thunder_stream boards all have a serial flash part that has a
+ * different base address on the AHB bus.
+ */
+ if ((a->pcid->subsystem_vendor == ATTO_VENDOR_ID)
+ && (a->pcid->subsystem_device & ATTO_SSDID_TBT))
+ a->flags2 |= AF2_THUNDERBOLT;
+
+ if (a->flags2 & AF2_THUNDERBOLT)
+ a->flags2 |= AF2_SERIAL_FLASH;
+
+ if (a->pcid->subsystem_device == ATTO_TLSH_1068)
+ a->flags2 |= AF2_THUNDERLINK;
+
+ /* Uncached Area */
+ high = (u8 *)*uncached_area;
+
+ /* initialize the scatter/gather table pages */
+
+ for (i = 0, sgl = a->sg_list_mds; i < num_sg_lists; i++, sgl++) {
+ sgl->size = sgl_page_size;
+
+ list_add_tail(&sgl->next_desc, &a->free_sg_list_head);
+
+ if (!esas2r_initmem_alloc(a, sgl, ESAS2R_SGL_ALIGN)) {
+ /* Allow the driver to load if the minimum count met. */
+ if (i < NUM_SGL_MIN)
+ return false;
+ break;
+ }
+ }
+
+ /* compute the size of the lists */
+ a->list_size = num_requests + ESAS2R_LIST_EXTRA;
+
+ /* allocate the inbound list */
+ a->inbound_list_md.size = a->list_size *
+ sizeof(struct
+ esas2r_inbound_list_source_entry);
+
+ if (!esas2r_initmem_alloc(a, &a->inbound_list_md, ESAS2R_LIST_ALIGN)) {
+ esas2r_hdebug("failed to allocate IB list");
+ return false;
+ }
+
+ /* allocate the outbound list */
+ a->outbound_list_md.size = a->list_size *
+ sizeof(struct atto_vda_ob_rsp);
+
+ if (!esas2r_initmem_alloc(a, &a->outbound_list_md,
+ ESAS2R_LIST_ALIGN)) {
+ esas2r_hdebug("failed to allocate IB list");
+ return false;
+ }
+
+ /* allocate the NVRAM structure */
+ a->nvram = (struct esas2r_sas_nvram *)high;
+ high += sizeof(struct esas2r_sas_nvram);
+
+ /* allocate the discovery buffer */
+ a->disc_buffer = high;
+ high += ESAS2R_DISC_BUF_LEN;
+ high = PTR_ALIGN(high, 8);
+
+ /* allocate the outbound list copy pointer */
+ a->outbound_copy = (u32 volatile *)high;
+ high += sizeof(u32);
+
+ if (!(a->flags & AF_NVR_VALID))
+ esas2r_nvram_set_defaults(a);
+
+ /* update the caller's uncached memory area pointer */
+ *uncached_area = (void *)high;
+
+ /* initialize the allocated memory */
+ if (a->flags & AF_FIRST_INIT) {
+ memset(a->req_table, 0,
+ (num_requests + num_ae_requests +
+ 1) * sizeof(struct esas2r_request *));
+
+ esas2r_targ_db_initialize(a);
+
+ /* prime parts of the inbound list */
+ element =
+ (struct esas2r_inbound_list_source_entry *)a->
+ inbound_list_md.
+ virt_addr;
+
+ for (i = 0; i < a->list_size; i++) {
+ element->address = 0;
+ element->reserved = 0;
+ element->length = cpu_to_le32(HWILSE_INTERFACE_F0
+ | (sizeof(union
+ atto_vda_req)
+ /
+ sizeof(u32)));
+ element++;
+ }
+
+ /* init the AE requests */
+ for (rq = a->first_ae_req, i = 0; i < num_ae_requests; rq++,
+ i++) {
+ INIT_LIST_HEAD(&rq->req_list);
+ if (!alloc_vda_req(a, rq)) {
+ esas2r_hdebug(
+ "failed to allocate a VDA request!");
+ return false;
+ }
+
+ esas2r_rq_init_request(rq, a);
+
+ /* override the completion function */
+ rq->comp_cb = esas2r_ae_complete;
+ }
+ }
+
+ return true;
+}
+
+/* This code will verify that the chip is operational. */
+bool esas2r_check_adapter(struct esas2r_adapter *a)
+{
+ u32 starttime;
+ u32 doorbell;
+ u64 ppaddr;
+ u32 dw;
+
+ /*
+ * if the chip reset detected flag is set, we can bypass a bunch of
+ * stuff.
+ */
+ if (a->flags & AF_CHPRST_DETECTED)
+ goto skip_chip_reset;
+
+ /*
+ * BEFORE WE DO ANYTHING, disable the chip interrupts! the boot driver
+ * may have left them enabled or we may be recovering from a fault.
+ */
+ esas2r_write_register_dword(a, MU_INT_MASK_OUT, ESAS2R_INT_DIS_MASK);
+ esas2r_flush_register_dword(a, MU_INT_MASK_OUT);
+
+ /*
+ * wait for the firmware to become ready by forcing an interrupt and
+ * waiting for a response.
+ */
+ starttime = jiffies_to_msecs(jiffies);
+
+ while (true) {
+ esas2r_force_interrupt(a);
+ doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
+ if (doorbell == 0xFFFFFFFF) {
+ /*
+ * Give the firmware up to two seconds to enable
+ * register access after a reset.
+ */
+ if ((jiffies_to_msecs(jiffies) - starttime) > 2000)
+ return esas2r_set_degraded_mode(a,
+ "unable to access registers");
+ } else if (doorbell & DRBL_FORCE_INT) {
+ u32 ver = (doorbell & DRBL_FW_VER_MSK);
+
+ /*
+ * This driver supports version 0 and version 1 of
+ * the API
+ */
+ esas2r_write_register_dword(a, MU_DOORBELL_OUT,
+ doorbell);
+
+ if (ver == DRBL_FW_VER_0) {
+ esas2r_lock_set_flags(&a->flags,
+ AF_LEGACY_SGE_MODE);
+
+ a->max_vdareq_size = 128;
+ a->build_sgl = esas2r_build_sg_list_sge;
+ } else if (ver == DRBL_FW_VER_1) {
+ esas2r_lock_clear_flags(&a->flags,
+ AF_LEGACY_SGE_MODE);
+
+ a->max_vdareq_size = 1024;
+ a->build_sgl = esas2r_build_sg_list_prd;
+ } else {
+ return esas2r_set_degraded_mode(a,
+ "unknown firmware version");
+ }
+ break;
+ }
+
+ schedule_timeout_interruptible(msecs_to_jiffies(100));
+
+ if ((jiffies_to_msecs(jiffies) - starttime) > 180000) {
+ esas2r_hdebug("FW ready TMO");
+ esas2r_bugon();
+
+ return esas2r_set_degraded_mode(a,
+ "firmware start has timed out");
+ }
+ }
+
+ /* purge any asynchronous events since we will repost them later */
+ esas2r_write_register_dword(a, MU_DOORBELL_IN, DRBL_MSG_IFC_DOWN);
+ starttime = jiffies_to_msecs(jiffies);
+
+ while (true) {
+ doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
+ if (doorbell & DRBL_MSG_IFC_DOWN) {
+ esas2r_write_register_dword(a, MU_DOORBELL_OUT,
+ doorbell);
+ break;
+ }
+
+ schedule_timeout_interruptible(msecs_to_jiffies(50));
+
+ if ((jiffies_to_msecs(jiffies) - starttime) > 3000) {
+ esas2r_hdebug("timeout waiting for interface down");
+ break;
+ }
+ }
+skip_chip_reset:
+ /*
+ * first things first, before we go changing any of these registers
+ * disable the communication lists.
+ */
+ dw = esas2r_read_register_dword(a, MU_IN_LIST_CONFIG);
+ dw &= ~MU_ILC_ENABLE;
+ esas2r_write_register_dword(a, MU_IN_LIST_CONFIG, dw);
+ dw = esas2r_read_register_dword(a, MU_OUT_LIST_CONFIG);
+ dw &= ~MU_OLC_ENABLE;
+ esas2r_write_register_dword(a, MU_OUT_LIST_CONFIG, dw);
+
+ /* configure the communication list addresses */
+ ppaddr = a->inbound_list_md.phys_addr;
+ esas2r_write_register_dword(a, MU_IN_LIST_ADDR_LO,
+ lower_32_bits(ppaddr));
+ esas2r_write_register_dword(a, MU_IN_LIST_ADDR_HI,
+ upper_32_bits(ppaddr));
+ ppaddr = a->outbound_list_md.phys_addr;
+ esas2r_write_register_dword(a, MU_OUT_LIST_ADDR_LO,
+ lower_32_bits(ppaddr));
+ esas2r_write_register_dword(a, MU_OUT_LIST_ADDR_HI,
+ upper_32_bits(ppaddr));
+ ppaddr = a->uncached_phys +
+ ((u8 *)a->outbound_copy - a->uncached);
+ esas2r_write_register_dword(a, MU_OUT_LIST_COPY_PTR_LO,
+ lower_32_bits(ppaddr));
+ esas2r_write_register_dword(a, MU_OUT_LIST_COPY_PTR_HI,
+ upper_32_bits(ppaddr));
+
+ /* reset the read and write pointers */
+ *a->outbound_copy =
+ a->last_write =
+ a->last_read = a->list_size - 1;
+ esas2r_lock_set_flags(&a->flags, AF_COMM_LIST_TOGGLE);
+ esas2r_write_register_dword(a, MU_IN_LIST_WRITE, MU_ILW_TOGGLE |
+ a->last_write);
+ esas2r_write_register_dword(a, MU_OUT_LIST_COPY, MU_OLC_TOGGLE |
+ a->last_write);
+ esas2r_write_register_dword(a, MU_IN_LIST_READ, MU_ILR_TOGGLE |
+ a->last_write);
+ esas2r_write_register_dword(a, MU_OUT_LIST_WRITE,
+ MU_OLW_TOGGLE | a->last_write);
+
+ /* configure the interface select fields */
+ dw = esas2r_read_register_dword(a, MU_IN_LIST_IFC_CONFIG);
+ dw &= ~(MU_ILIC_LIST | MU_ILIC_DEST);
+ esas2r_write_register_dword(a, MU_IN_LIST_IFC_CONFIG,
+ (dw | MU_ILIC_LIST_F0 | MU_ILIC_DEST_DDR));
+ dw = esas2r_read_register_dword(a, MU_OUT_LIST_IFC_CONFIG);
+ dw &= ~(MU_OLIC_LIST | MU_OLIC_SOURCE);
+ esas2r_write_register_dword(a, MU_OUT_LIST_IFC_CONFIG,
+ (dw | MU_OLIC_LIST_F0 |
+ MU_OLIC_SOURCE_DDR));
+
+ /* finish configuring the communication lists */
+ dw = esas2r_read_register_dword(a, MU_IN_LIST_CONFIG);
+ dw &= ~(MU_ILC_ENTRY_MASK | MU_ILC_NUMBER_MASK);
+ dw |= MU_ILC_ENTRY_4_DW | MU_ILC_DYNAMIC_SRC
+ | (a->list_size << MU_ILC_NUMBER_SHIFT);
+ esas2r_write_register_dword(a, MU_IN_LIST_CONFIG, dw);
+ dw = esas2r_read_register_dword(a, MU_OUT_LIST_CONFIG);
+ dw &= ~(MU_OLC_ENTRY_MASK | MU_OLC_NUMBER_MASK);
+ dw |= MU_OLC_ENTRY_4_DW | (a->list_size << MU_OLC_NUMBER_SHIFT);
+ esas2r_write_register_dword(a, MU_OUT_LIST_CONFIG, dw);
+
+ /*
+ * notify the firmware that we're done setting up the communication
+ * list registers. wait here until the firmware is done configuring
+ * its lists. it will signal that it is done by enabling the lists.
+ */
+ esas2r_write_register_dword(a, MU_DOORBELL_IN, DRBL_MSG_IFC_INIT);
+ starttime = jiffies_to_msecs(jiffies);
+
+ while (true) {
+ doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
+ if (doorbell & DRBL_MSG_IFC_INIT) {
+ esas2r_write_register_dword(a, MU_DOORBELL_OUT,
+ doorbell);
+ break;
+ }
+
+ schedule_timeout_interruptible(msecs_to_jiffies(100));
+
+ if ((jiffies_to_msecs(jiffies) - starttime) > 3000) {
+ esas2r_hdebug(
+ "timeout waiting for communication list init");
+ esas2r_bugon();
+ return esas2r_set_degraded_mode(a,
+ "timeout waiting for communication list init");
+ }
+ }
+
+ /*
+ * flag whether the firmware supports the power down doorbell. we
+ * determine this by reading the inbound doorbell enable mask.
+ */
+ doorbell = esas2r_read_register_dword(a, MU_DOORBELL_IN_ENB);
+ if (doorbell & DRBL_POWER_DOWN)
+ esas2r_lock_set_flags(&a->flags2, AF2_VDA_POWER_DOWN);
+ else
+ esas2r_lock_clear_flags(&a->flags2, AF2_VDA_POWER_DOWN);
+
+ /*
+ * enable assertion of outbound queue and doorbell interrupts in the
+ * main interrupt cause register.
+ */
+ esas2r_write_register_dword(a, MU_OUT_LIST_INT_MASK, MU_OLIS_MASK);
+ esas2r_write_register_dword(a, MU_DOORBELL_OUT_ENB, DRBL_ENB_MASK);
+ return true;
+}
+
+/* Process the initialization message just completed and format the next one. */
+static bool esas2r_format_init_msg(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ u32 msg = a->init_msg;
+ struct atto_vda_cfg_init *ci;
+
+ a->init_msg = 0;
+
+ switch (msg) {
+ case ESAS2R_INIT_MSG_START:
+ case ESAS2R_INIT_MSG_REINIT:
+ {
+ struct timeval now;
+ do_gettimeofday(&now);
+ esas2r_hdebug("CFG init");
+ esas2r_build_cfg_req(a,
+ rq,
+ VDA_CFG_INIT,
+ 0,
+ NULL);
+ ci = (struct atto_vda_cfg_init *)&rq->vrq->cfg.data.init;
+ ci->sgl_page_size = sgl_page_size;
+ ci->epoch_time = now.tv_sec;
+ rq->flags |= RF_FAILURE_OK;
+ a->init_msg = ESAS2R_INIT_MSG_INIT;
+ break;
+ }
+
+ case ESAS2R_INIT_MSG_INIT:
+ if (rq->req_stat == RS_SUCCESS) {
+ u32 major;
+ u32 minor;
+
+ a->fw_version = le16_to_cpu(
+ rq->func_rsp.cfg_rsp.vda_version);
+ a->fw_build = rq->func_rsp.cfg_rsp.fw_build;
+ major = LOBYTE(rq->func_rsp.cfg_rsp.fw_release);
+ minor = HIBYTE(rq->func_rsp.cfg_rsp.fw_release);
+ a->fw_version += (major << 16) + (minor << 24);
+ } else {
+ esas2r_hdebug("FAILED");
+ }
+
+ /*
+ * the 2.71 and earlier releases of R6xx firmware did not error
+ * unsupported config requests correctly.
+ */
+
+ if ((a->flags2 & AF2_THUNDERBOLT)
+ || (be32_to_cpu(a->fw_version) >
+ be32_to_cpu(0x47020052))) {
+ esas2r_hdebug("CFG get init");
+ esas2r_build_cfg_req(a,
+ rq,
+ VDA_CFG_GET_INIT2,
+ sizeof(struct atto_vda_cfg_init),
+ NULL);
+
+ rq->vrq->cfg.sg_list_offset = offsetof(
+ struct atto_vda_cfg_req,
+ data.sge);
+ rq->vrq->cfg.data.prde.ctl_len =
+ cpu_to_le32(sizeof(struct atto_vda_cfg_init));
+ rq->vrq->cfg.data.prde.address = cpu_to_le64(
+ rq->vrq_md->phys_addr +
+ sizeof(union atto_vda_req));
+ rq->flags |= RF_FAILURE_OK;
+ a->init_msg = ESAS2R_INIT_MSG_GET_INIT;
+ break;
+ }
+
+ case ESAS2R_INIT_MSG_GET_INIT:
+ if (msg == ESAS2R_INIT_MSG_GET_INIT) {
+ ci = (struct atto_vda_cfg_init *)rq->data_buf;
+ if (rq->req_stat == RS_SUCCESS) {
+ a->num_targets_backend =
+ le32_to_cpu(ci->num_targets_backend);
+ a->ioctl_tunnel =
+ le32_to_cpu(ci->ioctl_tunnel);
+ } else {
+ esas2r_hdebug("FAILED");
+ }
+ }
+ /* fall through */
+
+ default:
+ rq->req_stat = RS_SUCCESS;
+ return false;
+ }
+ return true;
+}
+
+/*
+ * Perform initialization messages via the request queue. Messages are
+ * performed with interrupts disabled.
+ */
+bool esas2r_init_msgs(struct esas2r_adapter *a)
+{
+ bool success = true;
+ struct esas2r_request *rq = &a->general_req;
+
+ esas2r_rq_init_request(rq, a);
+ rq->comp_cb = esas2r_dummy_complete;
+
+ if (a->init_msg == 0)
+ a->init_msg = ESAS2R_INIT_MSG_REINIT;
+
+ while (a->init_msg) {
+ if (esas2r_format_init_msg(a, rq)) {
+ unsigned long flags;
+ while (true) {
+ spin_lock_irqsave(&a->queue_lock, flags);
+ esas2r_start_vda_request(a, rq);
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+ esas2r_wait_request(a, rq);
+ if (rq->req_stat != RS_PENDING)
+ break;
+ }
+ }
+
+ if (rq->req_stat == RS_SUCCESS
+ || ((rq->flags & RF_FAILURE_OK)
+ && rq->req_stat != RS_TIMEOUT))
+ continue;
+
+ esas2r_log(ESAS2R_LOG_CRIT, "init message %x failed (%x, %x)",
+ a->init_msg, rq->req_stat, rq->flags);
+ a->init_msg = ESAS2R_INIT_MSG_START;
+ success = false;
+ break;
+ }
+
+ esas2r_rq_destroy_request(rq, a);
+ return success;
+}
+
+/* Initialize the adapter chip */
+bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll)
+{
+ bool rslt = false;
+ struct esas2r_request *rq;
+ u32 i;
+
+ if (a->flags & AF_DEGRADED_MODE)
+ goto exit;
+
+ if (!(a->flags & AF_NVR_VALID)) {
+ if (!esas2r_nvram_read_direct(a))
+ esas2r_log(ESAS2R_LOG_WARN,
+ "invalid/missing NVRAM parameters");
+ }
+
+ if (!esas2r_init_msgs(a)) {
+ esas2r_set_degraded_mode(a, "init messages failed");
+ goto exit;
+ }
+
+ /* The firmware is ready. */
+ esas2r_lock_clear_flags(&a->flags, AF_DEGRADED_MODE);
+ esas2r_lock_clear_flags(&a->flags, AF_CHPRST_PENDING);
+
+ /* Post all the async event requests */
+ for (i = 0, rq = a->first_ae_req; i < num_ae_requests; i++, rq++)
+ esas2r_start_ae_request(a, rq);
+
+ if (!a->flash_rev[0])
+ esas2r_read_flash_rev(a);
+
+ if (!a->image_type[0])
+ esas2r_read_image_type(a);
+
+ if (a->fw_version == 0)
+ a->fw_rev[0] = 0;
+ else
+ sprintf(a->fw_rev, "%1d.%02d",
+ (int)LOBYTE(HIWORD(a->fw_version)),
+ (int)HIBYTE(HIWORD(a->fw_version)));
+
+ esas2r_hdebug("firmware revision: %s", a->fw_rev);
+
+ if ((a->flags & AF_CHPRST_DETECTED)
+ && (a->flags & AF_FIRST_INIT)) {
+ esas2r_enable_chip_interrupts(a);
+ return true;
+ }
+
+ /* initialize discovery */
+ esas2r_disc_initialize(a);
+
+ /*
+ * wait for the device wait time to expire here if requested. this is
+ * usually requested during initial driver load and possibly when
+ * resuming from a low power state. deferred device waiting will use
+ * interrupts. chip reset recovery always defers device waiting to
+ * avoid being in a TASKLET too long.
+ */
+ if (init_poll) {
+ u32 currtime = a->disc_start_time;
+ u32 nexttick = 100;
+ u32 deltatime;
+
+ /*
+ * Block Tasklets from getting scheduled and indicate this is
+ * polled discovery.
+ */
+ esas2r_lock_set_flags(&a->flags, AF_TASKLET_SCHEDULED);
+ esas2r_lock_set_flags(&a->flags, AF_DISC_POLLED);
+
+ /*
+ * Temporarily bring the disable count to zero to enable
+ * deferred processing. Note that the count is already zero
+ * after the first initialization.
+ */
+ if (a->flags & AF_FIRST_INIT)
+ atomic_dec(&a->disable_cnt);
+
+ while (a->flags & AF_DISC_PENDING) {
+ schedule_timeout_interruptible(msecs_to_jiffies(100));
+
+ /*
+ * Determine the need for a timer tick based on the
+ * delta time between this and the last iteration of
+ * this loop. We don't use the absolute time because
+ * then we would have to worry about when nexttick
+ * wraps and currtime hasn't yet.
+ */
+ deltatime = jiffies_to_msecs(jiffies) - currtime;
+ currtime += deltatime;
+
+ /*
+ * Process any waiting discovery as long as the chip is
+ * up. If a chip reset happens during initial polling,
+ * we have to make sure the timer tick processes the
+ * doorbell indicating the firmware is ready.
+ */
+ if (!(a->flags & AF_CHPRST_PENDING))
+ esas2r_disc_check_for_work(a);
+
+ /* Simulate a timer tick. */
+ if (nexttick <= deltatime) {
+
+ /* Time for a timer tick */
+ nexttick += 100;
+ esas2r_timer_tick(a);
+ }
+
+ if (nexttick > deltatime)
+ nexttick -= deltatime;
+
+ /* Do any deferred processing */
+ if (esas2r_is_tasklet_pending(a))
+ esas2r_do_tasklet_tasks(a);
+
+ }
+
+ if (a->flags & AF_FIRST_INIT)
+ atomic_inc(&a->disable_cnt);
+
+ esas2r_lock_clear_flags(&a->flags, AF_DISC_POLLED);
+ esas2r_lock_clear_flags(&a->flags, AF_TASKLET_SCHEDULED);
+ }
+
+
+ esas2r_targ_db_report_changes(a);
+
+ /*
+ * For cases where (a) the initialization messages processing may
+ * handle an interrupt for a port event and a discovery is waiting, but
+ * we are not waiting for devices, or (b) the device wait time has been
+ * exhausted but there is still discovery pending, start any leftover
+ * discovery in interrupt driven mode.
+ */
+ esas2r_disc_start_waiting(a);
+
+ /* Enable chip interrupts */
+ a->int_mask = ESAS2R_INT_STS_MASK;
+ esas2r_enable_chip_interrupts(a);
+ esas2r_enable_heartbeat(a);
+ rslt = true;
+
+exit:
+ /*
+ * Regardless of whether initialization was successful, certain things
+ * need to get done before we exit.
+ */
+
+ if ((a->flags & AF_CHPRST_DETECTED)
+ && (a->flags & AF_FIRST_INIT)) {
+ /*
+ * Reinitialization was performed during the first
+ * initialization. Only clear the chip reset flag so the
+ * original device polling is not cancelled.
+ */
+ if (!rslt)
+ esas2r_lock_clear_flags(&a->flags, AF_CHPRST_PENDING);
+ } else {
+ /* First initialization or a subsequent re-init is complete. */
+ if (!rslt) {
+ esas2r_lock_clear_flags(&a->flags, AF_CHPRST_PENDING);
+ esas2r_lock_clear_flags(&a->flags, AF_DISC_PENDING);
+ }
+
+
+ /* Enable deferred processing after the first initialization. */
+ if (a->flags & AF_FIRST_INIT) {
+ esas2r_lock_clear_flags(&a->flags, AF_FIRST_INIT);
+
+ if (atomic_dec_return(&a->disable_cnt) == 0)
+ esas2r_do_deferred_processes(a);
+ }
+ }
+
+ return rslt;
+}
+
+void esas2r_reset_adapter(struct esas2r_adapter *a)
+{
+ esas2r_lock_set_flags(&a->flags, AF_OS_RESET);
+ esas2r_local_reset_adapter(a);
+ esas2r_schedule_tasklet(a);
+}
+
+void esas2r_reset_chip(struct esas2r_adapter *a)
+{
+ if (!esas2r_is_adapter_present(a))
+ return;
+
+ /*
+ * Before we reset the chip, save off the VDA core dump. The VDA core
+ * dump is located in the upper 512KB of the onchip SRAM. Make sure
+ * to not overwrite a previous crash that was saved.
+ */
+ if ((a->flags2 & AF2_COREDUMP_AVAIL)
+ && !(a->flags2 & AF2_COREDUMP_SAVED)
+ && a->fw_coredump_buff) {
+ esas2r_read_mem_block(a,
+ a->fw_coredump_buff,
+ MW_DATA_ADDR_SRAM + 0x80000,
+ ESAS2R_FWCOREDUMP_SZ);
+
+ esas2r_lock_set_flags(&a->flags2, AF2_COREDUMP_SAVED);
+ }
+
+ esas2r_lock_clear_flags(&a->flags2, AF2_COREDUMP_AVAIL);
+
+ /* Reset the chip */
+ if (a->pcid->revision == MVR_FREY_B2)
+ esas2r_write_register_dword(a, MU_CTL_STATUS_IN_B2,
+ MU_CTL_IN_FULL_RST2);
+ else
+ esas2r_write_register_dword(a, MU_CTL_STATUS_IN,
+ MU_CTL_IN_FULL_RST);
+
+
+ /* Stall a little while to let the reset condition clear */
+ mdelay(10);
+}
+
+static void esas2r_power_down_notify_firmware(struct esas2r_adapter *a)
+{
+ u32 starttime;
+ u32 doorbell;
+
+ esas2r_write_register_dword(a, MU_DOORBELL_IN, DRBL_POWER_DOWN);
+ starttime = jiffies_to_msecs(jiffies);
+
+ while (true) {
+ doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
+ if (doorbell & DRBL_POWER_DOWN) {
+ esas2r_write_register_dword(a, MU_DOORBELL_OUT,
+ doorbell);
+ break;
+ }
+
+ schedule_timeout_interruptible(msecs_to_jiffies(100));
+
+ if ((jiffies_to_msecs(jiffies) - starttime) > 30000) {
+ esas2r_hdebug("Timeout waiting for power down");
+ break;
+ }
+ }
+}
+
+/*
+ * Perform power management processing including managing device states, adapter
+ * states, interrupts, and I/O.
+ */
+void esas2r_power_down(struct esas2r_adapter *a)
+{
+ esas2r_lock_set_flags(&a->flags, AF_POWER_MGT);
+ esas2r_lock_set_flags(&a->flags, AF_POWER_DOWN);
+
+ if (!(a->flags & AF_DEGRADED_MODE)) {
+ u32 starttime;
+ u32 doorbell;
+
+ /*
+ * We are currently running OK and will be reinitializing later.
+ * increment the disable count to coordinate with
+ * esas2r_init_adapter. We don't have to do this in degraded
+ * mode since we never enabled interrupts in the first place.
+ */
+ esas2r_disable_chip_interrupts(a);
+ esas2r_disable_heartbeat(a);
+
+ /* wait for any VDA activity to clear before continuing */
+ esas2r_write_register_dword(a, MU_DOORBELL_IN,
+ DRBL_MSG_IFC_DOWN);
+ starttime = jiffies_to_msecs(jiffies);
+
+ while (true) {
+ doorbell =
+ esas2r_read_register_dword(a, MU_DOORBELL_OUT);
+ if (doorbell & DRBL_MSG_IFC_DOWN) {
+ esas2r_write_register_dword(a, MU_DOORBELL_OUT,
+ doorbell);
+ break;
+ }
+
+ schedule_timeout_interruptible(msecs_to_jiffies(100));
+
+ if ((jiffies_to_msecs(jiffies) - starttime) > 3000) {
+ esas2r_hdebug(
+ "timeout waiting for interface down");
+ break;
+ }
+ }
+
+ /*
+ * For versions of firmware that support it tell them the driver
+ * is powering down.
+ */
+ if (a->flags2 & AF2_VDA_POWER_DOWN)
+ esas2r_power_down_notify_firmware(a);
+ }
+
+ /* Suspend I/O processing. */
+ esas2r_lock_set_flags(&a->flags, AF_OS_RESET);
+ esas2r_lock_set_flags(&a->flags, AF_DISC_PENDING);
+ esas2r_lock_set_flags(&a->flags, AF_CHPRST_PENDING);
+
+ esas2r_process_adapter_reset(a);
+
+ /* Remove devices now that I/O is cleaned up. */
+ a->prev_dev_cnt = esas2r_targ_db_get_tgt_cnt(a);
+ esas2r_targ_db_remove_all(a, false);
+}
+
+/*
+ * Perform power management processing including managing device states, adapter
+ * states, interrupts, and I/O.
+ */
+bool esas2r_power_up(struct esas2r_adapter *a, bool init_poll)
+{
+ bool ret;
+
+ esas2r_lock_clear_flags(&a->flags, AF_POWER_DOWN);
+ esas2r_init_pci_cfg_space(a);
+ esas2r_lock_set_flags(&a->flags, AF_FIRST_INIT);
+ atomic_inc(&a->disable_cnt);
+
+ /* reinitialize the adapter */
+ ret = esas2r_check_adapter(a);
+ if (!esas2r_init_adapter_hw(a, init_poll))
+ ret = false;
+
+ /* send the reset asynchronous event */
+ esas2r_send_reset_ae(a, true);
+
+ /* clear this flag after initialization. */
+ esas2r_lock_clear_flags(&a->flags, AF_POWER_MGT);
+ return ret;
+}
+
+bool esas2r_is_adapter_present(struct esas2r_adapter *a)
+{
+ if (a->flags & AF_NOT_PRESENT)
+ return false;
+
+ if (esas2r_read_register_dword(a, MU_DOORBELL_OUT) == 0xFFFFFFFF) {
+ esas2r_lock_set_flags(&a->flags, AF_NOT_PRESENT);
+
+ return false;
+ }
+ return true;
+}
+
+const char *esas2r_get_model_name(struct esas2r_adapter *a)
+{
+ switch (a->pcid->subsystem_device) {
+ case ATTO_ESAS_R680:
+ return "ATTO ExpressSAS R680";
+
+ case ATTO_ESAS_R608:
+ return "ATTO ExpressSAS R608";
+
+ case ATTO_ESAS_R60F:
+ return "ATTO ExpressSAS R60F";
+
+ case ATTO_ESAS_R6F0:
+ return "ATTO ExpressSAS R6F0";
+
+ case ATTO_ESAS_R644:
+ return "ATTO ExpressSAS R644";
+
+ case ATTO_ESAS_R648:
+ return "ATTO ExpressSAS R648";
+
+ case ATTO_TSSC_3808:
+ return "ATTO ThunderStream SC 3808D";
+
+ case ATTO_TSSC_3808E:
+ return "ATTO ThunderStream SC 3808E";
+
+ case ATTO_TLSH_1068:
+ return "ATTO ThunderLink SH 1068";
+ }
+
+ return "ATTO SAS Controller";
+}
+
+const char *esas2r_get_model_name_short(struct esas2r_adapter *a)
+{
+ switch (a->pcid->subsystem_device) {
+ case ATTO_ESAS_R680:
+ return "R680";
+
+ case ATTO_ESAS_R608:
+ return "R608";
+
+ case ATTO_ESAS_R60F:
+ return "R60F";
+
+ case ATTO_ESAS_R6F0:
+ return "R6F0";
+
+ case ATTO_ESAS_R644:
+ return "R644";
+
+ case ATTO_ESAS_R648:
+ return "R648";
+
+ case ATTO_TSSC_3808:
+ return "SC 3808D";
+
+ case ATTO_TSSC_3808E:
+ return "SC 3808E";
+
+ case ATTO_TLSH_1068:
+ return "SH 1068";
+ }
+
+ return "unknown";
+}
--
1.8.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v4 04/10] SCSI: esas2r: Add device discovery and logging functions
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
` (2 preceding siblings ...)
2013-08-23 14:35 ` [PATCH v4 03/10] SCSI: esas2r: Add initialization functions Bradley Grove
@ 2013-08-23 14:35 ` Bradley Grove
2013-08-23 14:35 ` [PATCH v4 05/10] SCSI: esas2r: Add interrupt and IO functions Bradley Grove
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Bradley Grove @ 2013-08-23 14:35 UTC (permalink / raw)
To: linux-scsi, jbottomley; +Cc: jseba, Bradley Grove
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
drivers/scsi/esas2r/esas2r_disc.c | 1190 +++++++++++++++++++++++++++++++++++++
drivers/scsi/esas2r/esas2r_log.c | 255 ++++++++
drivers/scsi/esas2r/esas2r_log.h | 118 ++++
3 files changed, 1563 insertions(+)
create mode 100644 drivers/scsi/esas2r/esas2r_disc.c
create mode 100644 drivers/scsi/esas2r/esas2r_log.c
create mode 100644 drivers/scsi/esas2r/esas2r_log.h
diff --git a/drivers/scsi/esas2r/esas2r_disc.c b/drivers/scsi/esas2r/esas2r_disc.c
new file mode 100644
index 0000000..319ba9a
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_disc.c
@@ -0,0 +1,1189 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r_disc.c
+ * esas2r device discovery routines
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+
+#include "esas2r.h"
+
+/* Miscellaneous internal discovery routines */
+static void esas2r_disc_abort(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static bool esas2r_disc_continue(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static void esas2r_disc_fix_curr_requests(struct esas2r_adapter *a);
+static u32 esas2r_disc_get_phys_addr(struct esas2r_sg_context *sgc, u64 *addr);
+static bool esas2r_disc_start_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+
+/* Internal discovery routines that process the states */
+static bool esas2r_disc_block_dev_scan(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static void esas2r_disc_block_dev_scan_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static bool esas2r_disc_dev_add(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static bool esas2r_disc_dev_remove(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static bool esas2r_disc_part_info(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static void esas2r_disc_part_info_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static bool esas2r_disc_passthru_dev_info(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static void esas2r_disc_passthru_dev_info_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static bool esas2r_disc_passthru_dev_addr(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static void esas2r_disc_passthru_dev_addr_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static bool esas2r_disc_raid_grp_info(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+static void esas2r_disc_raid_grp_info_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+
+void esas2r_disc_initialize(struct esas2r_adapter *a)
+{
+ struct esas2r_sas_nvram *nvr = a->nvram;
+
+ esas2r_trace_enter();
+
+ esas2r_lock_clear_flags(&a->flags, AF_DISC_IN_PROG);
+ esas2r_lock_clear_flags(&a->flags2, AF2_DEV_SCAN);
+ esas2r_lock_clear_flags(&a->flags2, AF2_DEV_CNT_OK);
+
+ a->disc_start_time = jiffies_to_msecs(jiffies);
+ a->disc_wait_time = nvr->dev_wait_time * 1000;
+ a->disc_wait_cnt = nvr->dev_wait_count;
+
+ if (a->disc_wait_cnt > ESAS2R_MAX_TARGETS)
+ a->disc_wait_cnt = ESAS2R_MAX_TARGETS;
+
+ /*
+ * If we are doing chip reset or power management processing, always
+ * wait for devices. use the NVRAM device count if it is greater than
+ * previously discovered devices.
+ */
+
+ esas2r_hdebug("starting discovery...");
+
+ a->general_req.interrupt_cx = NULL;
+
+ if (a->flags & (AF_CHPRST_DETECTED | AF_POWER_MGT)) {
+ if (a->prev_dev_cnt == 0) {
+ /* Don't bother waiting if there is nothing to wait
+ * for.
+ */
+ a->disc_wait_time = 0;
+ } else {
+ /*
+ * Set the device wait count to what was previously
+ * found. We don't care if the user only configured
+ * a time because we know the exact count to wait for.
+ * There is no need to honor the user's wishes to
+ * always wait the full time.
+ */
+ a->disc_wait_cnt = a->prev_dev_cnt;
+
+ /*
+ * bump the minimum wait time to 15 seconds since the
+ * default is 3 (system boot or the boot driver usually
+ * buys us more time).
+ */
+ if (a->disc_wait_time < 15000)
+ a->disc_wait_time = 15000;
+ }
+ }
+
+ esas2r_trace("disc wait count: %d", a->disc_wait_cnt);
+ esas2r_trace("disc wait time: %d", a->disc_wait_time);
+
+ if (a->disc_wait_time == 0)
+ esas2r_disc_check_complete(a);
+
+ esas2r_trace_exit();
+}
+
+void esas2r_disc_start_waiting(struct esas2r_adapter *a)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&a->mem_lock, flags);
+
+ if (a->disc_ctx.disc_evt)
+ esas2r_disc_start_port(a);
+
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+}
+
+void esas2r_disc_check_for_work(struct esas2r_adapter *a)
+{
+ struct esas2r_request *rq = &a->general_req;
+
+ /* service any pending interrupts first */
+
+ esas2r_polled_interrupt(a);
+
+ /*
+ * now, interrupt processing may have queued up a discovery event. go
+ * see if we have one to start. we couldn't start it in the ISR since
+ * polled discovery would cause a deadlock.
+ */
+
+ esas2r_disc_start_waiting(a);
+
+ if (rq->interrupt_cx == NULL)
+ return;
+
+ if (rq->req_stat == RS_STARTED
+ && rq->timeout <= RQ_MAX_TIMEOUT) {
+ /* wait for the current discovery request to complete. */
+ esas2r_wait_request(a, rq);
+
+ if (rq->req_stat == RS_TIMEOUT) {
+ esas2r_disc_abort(a, rq);
+ esas2r_local_reset_adapter(a);
+ return;
+ }
+ }
+
+ if (rq->req_stat == RS_PENDING
+ || rq->req_stat == RS_STARTED)
+ return;
+
+ esas2r_disc_continue(a, rq);
+}
+
+void esas2r_disc_check_complete(struct esas2r_adapter *a)
+{
+ unsigned long flags;
+
+ esas2r_trace_enter();
+
+ /* check to see if we should be waiting for devices */
+ if (a->disc_wait_time) {
+ u32 currtime = jiffies_to_msecs(jiffies);
+ u32 time = currtime - a->disc_start_time;
+
+ /*
+ * Wait until the device wait time is exhausted or the device
+ * wait count is satisfied.
+ */
+ if (time < a->disc_wait_time
+ && (esas2r_targ_db_get_tgt_cnt(a) < a->disc_wait_cnt
+ || a->disc_wait_cnt == 0)) {
+ /* After three seconds of waiting, schedule a scan. */
+ if (time >= 3000
+ && !(esas2r_lock_set_flags(&a->flags2,
+ AF2_DEV_SCAN) &
+ ilog2(AF2_DEV_SCAN))) {
+ spin_lock_irqsave(&a->mem_lock, flags);
+ esas2r_disc_queue_event(a, DCDE_DEV_SCAN);
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+ }
+
+ esas2r_trace_exit();
+ return;
+ }
+
+ /*
+ * We are done waiting...we think. Adjust the wait time to
+ * consume events after the count is met.
+ */
+ if (!(esas2r_lock_set_flags(&a->flags2, AF2_DEV_CNT_OK)
+ & ilog2(AF2_DEV_CNT_OK)))
+ a->disc_wait_time = time + 3000;
+
+ /* If we haven't done a full scan yet, do it now. */
+ if (!(esas2r_lock_set_flags(&a->flags2,
+ AF2_DEV_SCAN) &
+ ilog2(AF2_DEV_SCAN))) {
+ spin_lock_irqsave(&a->mem_lock, flags);
+ esas2r_disc_queue_event(a, DCDE_DEV_SCAN);
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+
+ esas2r_trace_exit();
+ return;
+ }
+
+ /*
+ * Now, if there is still time left to consume events, continue
+ * waiting.
+ */
+ if (time < a->disc_wait_time) {
+ esas2r_trace_exit();
+ return;
+ }
+ } else {
+ if (!(esas2r_lock_set_flags(&a->flags2,
+ AF2_DEV_SCAN) &
+ ilog2(AF2_DEV_SCAN))) {
+ spin_lock_irqsave(&a->mem_lock, flags);
+ esas2r_disc_queue_event(a, DCDE_DEV_SCAN);
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+ }
+ }
+
+ /* We want to stop waiting for devices. */
+ a->disc_wait_time = 0;
+
+ if ((a->flags & AF_DISC_POLLED)
+ && (a->flags & AF_DISC_IN_PROG)) {
+ /*
+ * Polled discovery is still pending so continue the active
+ * discovery until it is done. At that point, we will stop
+ * polled discovery and transition to interrupt driven
+ * discovery.
+ */
+ } else {
+ /*
+ * Done waiting for devices. Note that we get here immediately
+ * after deferred waiting completes because that is interrupt
+ * driven; i.e. There is no transition.
+ */
+ esas2r_disc_fix_curr_requests(a);
+ esas2r_lock_clear_flags(&a->flags, AF_DISC_PENDING);
+
+ /*
+ * We have deferred target state changes until now because we
+ * don't want to report any removals (due to the first arrival)
+ * until the device wait time expires.
+ */
+ esas2r_lock_set_flags(&a->flags, AF_PORT_CHANGE);
+ }
+
+ esas2r_trace_exit();
+}
+
+void esas2r_disc_queue_event(struct esas2r_adapter *a, u8 disc_evt)
+{
+ struct esas2r_disc_context *dc = &a->disc_ctx;
+
+ esas2r_trace_enter();
+
+ esas2r_trace("disc_event: %d", disc_evt);
+
+ /* Initialize the discovery context */
+ dc->disc_evt |= disc_evt;
+
+ /*
+ * Don't start discovery before or during polled discovery. if we did,
+ * we would have a deadlock if we are in the ISR already.
+ */
+ if (!(a->flags & (AF_CHPRST_PENDING | AF_DISC_POLLED)))
+ esas2r_disc_start_port(a);
+
+ esas2r_trace_exit();
+}
+
+bool esas2r_disc_start_port(struct esas2r_adapter *a)
+{
+ struct esas2r_request *rq = &a->general_req;
+ struct esas2r_disc_context *dc = &a->disc_ctx;
+ bool ret;
+
+ esas2r_trace_enter();
+
+ if (a->flags & AF_DISC_IN_PROG) {
+ esas2r_trace_exit();
+
+ return false;
+ }
+
+ /* If there is a discovery waiting, process it. */
+ if (dc->disc_evt) {
+ if ((a->flags & AF_DISC_POLLED)
+ && a->disc_wait_time == 0) {
+ /*
+ * We are doing polled discovery, but we no longer want
+ * to wait for devices. Stop polled discovery and
+ * transition to interrupt driven discovery.
+ */
+
+ esas2r_trace_exit();
+
+ return false;
+ }
+ } else {
+ /* Discovery is complete. */
+
+ esas2r_hdebug("disc done");
+
+ esas2r_lock_set_flags(&a->flags, AF_PORT_CHANGE);
+
+ esas2r_trace_exit();
+
+ return false;
+ }
+
+ /* Handle the discovery context */
+ esas2r_trace("disc_evt: %d", dc->disc_evt);
+ esas2r_lock_set_flags(&a->flags, AF_DISC_IN_PROG);
+ dc->flags = 0;
+
+ if (a->flags & AF_DISC_POLLED)
+ dc->flags |= DCF_POLLED;
+
+ rq->interrupt_cx = dc;
+ rq->req_stat = RS_SUCCESS;
+
+ /* Decode the event code */
+ if (dc->disc_evt & DCDE_DEV_SCAN) {
+ dc->disc_evt &= ~DCDE_DEV_SCAN;
+
+ dc->flags |= DCF_DEV_SCAN;
+ dc->state = DCS_BLOCK_DEV_SCAN;
+ } else if (dc->disc_evt & DCDE_DEV_CHANGE) {
+ dc->disc_evt &= ~DCDE_DEV_CHANGE;
+
+ dc->flags |= DCF_DEV_CHANGE;
+ dc->state = DCS_DEV_RMV;
+ }
+
+ /* Continue interrupt driven discovery */
+ if (!(a->flags & AF_DISC_POLLED))
+ ret = esas2r_disc_continue(a, rq);
+ else
+ ret = true;
+
+ esas2r_trace_exit();
+
+ return ret;
+}
+
+static bool esas2r_disc_continue(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ bool rslt;
+
+ /* Device discovery/removal */
+ while (dc->flags & (DCF_DEV_CHANGE | DCF_DEV_SCAN)) {
+ rslt = false;
+
+ switch (dc->state) {
+ case DCS_DEV_RMV:
+
+ rslt = esas2r_disc_dev_remove(a, rq);
+ break;
+
+ case DCS_DEV_ADD:
+
+ rslt = esas2r_disc_dev_add(a, rq);
+ break;
+
+ case DCS_BLOCK_DEV_SCAN:
+
+ rslt = esas2r_disc_block_dev_scan(a, rq);
+ break;
+
+ case DCS_RAID_GRP_INFO:
+
+ rslt = esas2r_disc_raid_grp_info(a, rq);
+ break;
+
+ case DCS_PART_INFO:
+
+ rslt = esas2r_disc_part_info(a, rq);
+ break;
+
+ case DCS_PT_DEV_INFO:
+
+ rslt = esas2r_disc_passthru_dev_info(a, rq);
+ break;
+ case DCS_PT_DEV_ADDR:
+
+ rslt = esas2r_disc_passthru_dev_addr(a, rq);
+ break;
+ case DCS_DISC_DONE:
+
+ dc->flags &= ~(DCF_DEV_CHANGE | DCF_DEV_SCAN);
+ break;
+
+ default:
+
+ esas2r_bugon();
+ dc->state = DCS_DISC_DONE;
+ break;
+ }
+
+ if (rslt)
+ return true;
+ }
+
+ /* Discovery is done...for now. */
+ rq->interrupt_cx = NULL;
+
+ if (!(a->flags & AF_DISC_PENDING))
+ esas2r_disc_fix_curr_requests(a);
+
+ esas2r_lock_clear_flags(&a->flags, AF_DISC_IN_PROG);
+
+ /* Start the next discovery. */
+ return esas2r_disc_start_port(a);
+}
+
+static bool esas2r_disc_start_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ unsigned long flags;
+
+ /* Set the timeout to a minimum value. */
+ if (rq->timeout < ESAS2R_DEFAULT_TMO)
+ rq->timeout = ESAS2R_DEFAULT_TMO;
+
+ /*
+ * Override the request type to distinguish discovery requests. If we
+ * end up deferring the request, esas2r_disc_local_start_request()
+ * will be called to restart it.
+ */
+ rq->req_type = RT_DISC_REQ;
+
+ spin_lock_irqsave(&a->queue_lock, flags);
+
+ if (!(a->flags & (AF_CHPRST_PENDING | AF_FLASHING)))
+ esas2r_disc_local_start_request(a, rq);
+ else
+ list_add_tail(&rq->req_list, &a->defer_list);
+
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+
+ return true;
+}
+
+void esas2r_disc_local_start_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ esas2r_trace_enter();
+
+ list_add_tail(&rq->req_list, &a->active_list);
+
+ esas2r_start_vda_request(a, rq);
+
+ esas2r_trace_exit();
+
+ return;
+}
+
+static void esas2r_disc_abort(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+
+ esas2r_trace_enter();
+
+ /* abort the current discovery */
+
+ dc->state = DCS_DISC_DONE;
+
+ esas2r_trace_exit();
+}
+
+static bool esas2r_disc_block_dev_scan(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ bool rslt;
+
+ esas2r_trace_enter();
+
+ esas2r_rq_init_request(rq, a);
+
+ esas2r_build_mgt_req(a,
+ rq,
+ VDAMGT_DEV_SCAN,
+ 0,
+ 0,
+ 0,
+ NULL);
+
+ rq->comp_cb = esas2r_disc_block_dev_scan_cb;
+
+ rq->timeout = 30000;
+ rq->interrupt_cx = dc;
+
+ rslt = esas2r_disc_start_request(a, rq);
+
+ esas2r_trace_exit();
+
+ return rslt;
+}
+
+static void esas2r_disc_block_dev_scan_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ unsigned long flags;
+
+ esas2r_trace_enter();
+
+ spin_lock_irqsave(&a->mem_lock, flags);
+
+ if (rq->req_stat == RS_SUCCESS)
+ dc->scan_gen = rq->func_rsp.mgt_rsp.scan_generation;
+
+ dc->state = DCS_RAID_GRP_INFO;
+ dc->raid_grp_ix = 0;
+
+ esas2r_rq_destroy_request(rq, a);
+
+ /* continue discovery if it's interrupt driven */
+
+ if (!(dc->flags & DCF_POLLED))
+ esas2r_disc_continue(a, rq);
+
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+
+ esas2r_trace_exit();
+}
+
+static bool esas2r_disc_raid_grp_info(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ bool rslt;
+ struct atto_vda_grp_info *grpinfo;
+
+ esas2r_trace_enter();
+
+ esas2r_trace("raid_group_idx: %d", dc->raid_grp_ix);
+
+ if (dc->raid_grp_ix >= VDA_MAX_RAID_GROUPS) {
+ dc->state = DCS_DISC_DONE;
+
+ esas2r_trace_exit();
+
+ return false;
+ }
+
+ esas2r_rq_init_request(rq, a);
+
+ grpinfo = &rq->vda_rsp_data->mgt_data.data.grp_info;
+
+ memset(grpinfo, 0, sizeof(struct atto_vda_grp_info));
+
+ esas2r_build_mgt_req(a,
+ rq,
+ VDAMGT_GRP_INFO,
+ dc->scan_gen,
+ 0,
+ sizeof(struct atto_vda_grp_info),
+ NULL);
+
+ grpinfo->grp_index = dc->raid_grp_ix;
+
+ rq->comp_cb = esas2r_disc_raid_grp_info_cb;
+
+ rq->interrupt_cx = dc;
+
+ rslt = esas2r_disc_start_request(a, rq);
+
+ esas2r_trace_exit();
+
+ return rslt;
+}
+
+static void esas2r_disc_raid_grp_info_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ unsigned long flags;
+ struct atto_vda_grp_info *grpinfo;
+
+ esas2r_trace_enter();
+
+ spin_lock_irqsave(&a->mem_lock, flags);
+
+ if (rq->req_stat == RS_SCAN_GEN) {
+ dc->scan_gen = rq->func_rsp.mgt_rsp.scan_generation;
+ dc->raid_grp_ix = 0;
+ goto done;
+ }
+
+ if (rq->req_stat == RS_SUCCESS) {
+ grpinfo = &rq->vda_rsp_data->mgt_data.data.grp_info;
+
+ if (grpinfo->status != VDA_GRP_STAT_ONLINE
+ && grpinfo->status != VDA_GRP_STAT_DEGRADED) {
+ /* go to the next group. */
+
+ dc->raid_grp_ix++;
+ } else {
+ memcpy(&dc->raid_grp_name[0],
+ &grpinfo->grp_name[0],
+ sizeof(grpinfo->grp_name));
+
+ dc->interleave = le32_to_cpu(grpinfo->interleave);
+ dc->block_size = le32_to_cpu(grpinfo->block_size);
+
+ dc->state = DCS_PART_INFO;
+ dc->part_num = 0;
+ }
+ } else {
+ if (!(rq->req_stat == RS_GRP_INVALID)) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "A request for RAID group info failed - "
+ "returned with %x",
+ rq->req_stat);
+ }
+
+ dc->dev_ix = 0;
+ dc->state = DCS_PT_DEV_INFO;
+ }
+
+done:
+
+ esas2r_rq_destroy_request(rq, a);
+
+ /* continue discovery if it's interrupt driven */
+
+ if (!(dc->flags & DCF_POLLED))
+ esas2r_disc_continue(a, rq);
+
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+
+ esas2r_trace_exit();
+}
+
+static bool esas2r_disc_part_info(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ bool rslt;
+ struct atto_vdapart_info *partinfo;
+
+ esas2r_trace_enter();
+
+ esas2r_trace("part_num: %d", dc->part_num);
+
+ if (dc->part_num >= VDA_MAX_PARTITIONS) {
+ dc->state = DCS_RAID_GRP_INFO;
+ dc->raid_grp_ix++;
+
+ esas2r_trace_exit();
+
+ return false;
+ }
+
+ esas2r_rq_init_request(rq, a);
+
+ partinfo = &rq->vda_rsp_data->mgt_data.data.part_info;
+
+ memset(partinfo, 0, sizeof(struct atto_vdapart_info));
+
+ esas2r_build_mgt_req(a,
+ rq,
+ VDAMGT_PART_INFO,
+ dc->scan_gen,
+ 0,
+ sizeof(struct atto_vdapart_info),
+ NULL);
+
+ partinfo->part_no = dc->part_num;
+
+ memcpy(&partinfo->grp_name[0],
+ &dc->raid_grp_name[0],
+ sizeof(partinfo->grp_name));
+
+ rq->comp_cb = esas2r_disc_part_info_cb;
+
+ rq->interrupt_cx = dc;
+
+ rslt = esas2r_disc_start_request(a, rq);
+
+ esas2r_trace_exit();
+
+ return rslt;
+}
+
+static void esas2r_disc_part_info_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ unsigned long flags;
+ struct atto_vdapart_info *partinfo;
+
+ esas2r_trace_enter();
+
+ spin_lock_irqsave(&a->mem_lock, flags);
+
+ if (rq->req_stat == RS_SCAN_GEN) {
+ dc->scan_gen = rq->func_rsp.mgt_rsp.scan_generation;
+ dc->raid_grp_ix = 0;
+ dc->state = DCS_RAID_GRP_INFO;
+ } else if (rq->req_stat == RS_SUCCESS) {
+ partinfo = &rq->vda_rsp_data->mgt_data.data.part_info;
+
+ dc->part_num = partinfo->part_no;
+
+ dc->curr_virt_id = le16_to_cpu(partinfo->target_id);
+
+ esas2r_targ_db_add_raid(a, dc);
+
+ dc->part_num++;
+ } else {
+ if (!(rq->req_stat == RS_PART_LAST)) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "A request for RAID group partition info "
+ "failed - status:%d", rq->req_stat);
+ }
+
+ dc->state = DCS_RAID_GRP_INFO;
+ dc->raid_grp_ix++;
+ }
+
+ esas2r_rq_destroy_request(rq, a);
+
+ /* continue discovery if it's interrupt driven */
+
+ if (!(dc->flags & DCF_POLLED))
+ esas2r_disc_continue(a, rq);
+
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+
+ esas2r_trace_exit();
+}
+
+static bool esas2r_disc_passthru_dev_info(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ bool rslt;
+ struct atto_vda_devinfo *devinfo;
+
+ esas2r_trace_enter();
+
+ esas2r_trace("dev_ix: %d", dc->dev_ix);
+
+ esas2r_rq_init_request(rq, a);
+
+ devinfo = &rq->vda_rsp_data->mgt_data.data.dev_info;
+
+ memset(devinfo, 0, sizeof(struct atto_vda_devinfo));
+
+ esas2r_build_mgt_req(a,
+ rq,
+ VDAMGT_DEV_PT_INFO,
+ dc->scan_gen,
+ dc->dev_ix,
+ sizeof(struct atto_vda_devinfo),
+ NULL);
+
+ rq->comp_cb = esas2r_disc_passthru_dev_info_cb;
+
+ rq->interrupt_cx = dc;
+
+ rslt = esas2r_disc_start_request(a, rq);
+
+ esas2r_trace_exit();
+
+ return rslt;
+}
+
+static void esas2r_disc_passthru_dev_info_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ unsigned long flags;
+ struct atto_vda_devinfo *devinfo;
+
+ esas2r_trace_enter();
+
+ spin_lock_irqsave(&a->mem_lock, flags);
+
+ if (rq->req_stat == RS_SCAN_GEN) {
+ dc->scan_gen = rq->func_rsp.mgt_rsp.scan_generation;
+ dc->dev_ix = 0;
+ dc->state = DCS_PT_DEV_INFO;
+ } else if (rq->req_stat == RS_SUCCESS) {
+ devinfo = &rq->vda_rsp_data->mgt_data.data.dev_info;
+
+ dc->dev_ix = le16_to_cpu(rq->func_rsp.mgt_rsp.dev_index);
+
+ dc->curr_virt_id = le16_to_cpu(devinfo->target_id);
+
+ if (le16_to_cpu(devinfo->features) & VDADEVFEAT_PHYS_ID) {
+ dc->curr_phys_id =
+ le16_to_cpu(devinfo->phys_target_id);
+ dc->dev_addr_type = ATTO_GDA_AT_PORT;
+ dc->state = DCS_PT_DEV_ADDR;
+
+ esas2r_trace("curr_virt_id: %d", dc->curr_virt_id);
+ esas2r_trace("curr_phys_id: %d", dc->curr_phys_id);
+ } else {
+ dc->dev_ix++;
+ }
+ } else {
+ if (!(rq->req_stat == RS_DEV_INVALID)) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "A request for device information failed - "
+ "status:%d", rq->req_stat);
+ }
+
+ dc->state = DCS_DISC_DONE;
+ }
+
+ esas2r_rq_destroy_request(rq, a);
+
+ /* continue discovery if it's interrupt driven */
+
+ if (!(dc->flags & DCF_POLLED))
+ esas2r_disc_continue(a, rq);
+
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+
+ esas2r_trace_exit();
+}
+
+static bool esas2r_disc_passthru_dev_addr(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ bool rslt;
+ struct atto_ioctl *hi;
+ struct esas2r_sg_context sgc;
+
+ esas2r_trace_enter();
+
+ esas2r_rq_init_request(rq, a);
+
+ /* format the request. */
+
+ sgc.cur_offset = NULL;
+ sgc.get_phys_addr = (PGETPHYSADDR)esas2r_disc_get_phys_addr;
+ sgc.length = offsetof(struct atto_ioctl, data)
+ + sizeof(struct atto_hba_get_device_address);
+
+ esas2r_sgc_init(&sgc, a, rq, rq->vrq->ioctl.sge);
+
+ esas2r_build_ioctl_req(a, rq, sgc.length, VDA_IOCTL_HBA);
+
+ if (!esas2r_build_sg_list(a, rq, &sgc)) {
+ esas2r_rq_destroy_request(rq, a);
+
+ esas2r_trace_exit();
+
+ return false;
+ }
+
+ rq->comp_cb = esas2r_disc_passthru_dev_addr_cb;
+
+ rq->interrupt_cx = dc;
+
+ /* format the IOCTL data. */
+
+ hi = (struct atto_ioctl *)a->disc_buffer;
+
+ memset(a->disc_buffer, 0, ESAS2R_DISC_BUF_LEN);
+
+ hi->version = ATTO_VER_GET_DEV_ADDR0;
+ hi->function = ATTO_FUNC_GET_DEV_ADDR;
+ hi->flags = HBAF_TUNNEL;
+
+ hi->data.get_dev_addr.target_id = le32_to_cpu(dc->curr_phys_id);
+ hi->data.get_dev_addr.addr_type = dc->dev_addr_type;
+
+ /* start it up. */
+
+ rslt = esas2r_disc_start_request(a, rq);
+
+ esas2r_trace_exit();
+
+ return rslt;
+}
+
+static void esas2r_disc_passthru_dev_addr_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ struct esas2r_target *t = NULL;
+ unsigned long flags;
+ struct atto_ioctl *hi;
+ u16 addrlen;
+
+ esas2r_trace_enter();
+
+ spin_lock_irqsave(&a->mem_lock, flags);
+
+ hi = (struct atto_ioctl *)a->disc_buffer;
+
+ if (rq->req_stat == RS_SUCCESS
+ && hi->status == ATTO_STS_SUCCESS) {
+ addrlen = le16_to_cpu(hi->data.get_dev_addr.addr_len);
+
+ if (dc->dev_addr_type == ATTO_GDA_AT_PORT) {
+ if (addrlen == sizeof(u64))
+ memcpy(&dc->sas_addr,
+ &hi->data.get_dev_addr.address[0],
+ addrlen);
+ else
+ memset(&dc->sas_addr, 0, sizeof(dc->sas_addr));
+
+ /* Get the unique identifier. */
+ dc->dev_addr_type = ATTO_GDA_AT_UNIQUE;
+
+ goto next_dev_addr;
+ } else {
+ /* Add the pass through target. */
+ if (HIBYTE(addrlen) == 0) {
+ t = esas2r_targ_db_add_pthru(a,
+ dc,
+ &hi->data.
+ get_dev_addr.
+ address[0],
+ (u8)hi->data.
+ get_dev_addr.
+ addr_len);
+
+ if (t)
+ memcpy(&t->sas_addr, &dc->sas_addr,
+ sizeof(t->sas_addr));
+ } else {
+ /* getting the back end data failed */
+
+ esas2r_log(ESAS2R_LOG_WARN,
+ "an error occurred retrieving the "
+ "back end data (%s:%d)",
+ __func__,
+ __LINE__);
+ }
+ }
+ } else {
+ /* getting the back end data failed */
+
+ esas2r_log(ESAS2R_LOG_WARN,
+ "an error occurred retrieving the back end data - "
+ "rq->req_stat:%d hi->status:%d",
+ rq->req_stat, hi->status);
+ }
+
+ /* proceed to the next device. */
+
+ if (dc->flags & DCF_DEV_SCAN) {
+ dc->dev_ix++;
+ dc->state = DCS_PT_DEV_INFO;
+ } else if (dc->flags & DCF_DEV_CHANGE) {
+ dc->curr_targ++;
+ dc->state = DCS_DEV_ADD;
+ } else {
+ esas2r_bugon();
+ }
+
+next_dev_addr:
+ esas2r_rq_destroy_request(rq, a);
+
+ /* continue discovery if it's interrupt driven */
+
+ if (!(dc->flags & DCF_POLLED))
+ esas2r_disc_continue(a, rq);
+
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+
+ esas2r_trace_exit();
+}
+
+static u32 esas2r_disc_get_phys_addr(struct esas2r_sg_context *sgc, u64 *addr)
+{
+ struct esas2r_adapter *a = sgc->adapter;
+
+ if (sgc->length > ESAS2R_DISC_BUF_LEN)
+ esas2r_bugon();
+
+ *addr = a->uncached_phys
+ + (u64)((u8 *)a->disc_buffer - a->uncached);
+
+ return sgc->length;
+}
+
+static bool esas2r_disc_dev_remove(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ struct esas2r_target *t;
+ struct esas2r_target *t2;
+
+ esas2r_trace_enter();
+
+ /* process removals. */
+
+ for (t = a->targetdb; t < a->targetdb_end; t++) {
+ if (t->new_target_state != TS_NOT_PRESENT)
+ continue;
+
+ t->new_target_state = TS_INVALID;
+
+ /* remove the right target! */
+
+ t2 =
+ esas2r_targ_db_find_by_virt_id(a,
+ esas2r_targ_get_id(t,
+ a));
+
+ if (t2)
+ esas2r_targ_db_remove(a, t2);
+ }
+
+ /* removals complete. process arrivals. */
+
+ dc->state = DCS_DEV_ADD;
+ dc->curr_targ = a->targetdb;
+
+ esas2r_trace_exit();
+
+ return false;
+}
+
+static bool esas2r_disc_dev_add(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_disc_context *dc =
+ (struct esas2r_disc_context *)rq->interrupt_cx;
+ struct esas2r_target *t = dc->curr_targ;
+
+ if (t >= a->targetdb_end) {
+ /* done processing state changes. */
+
+ dc->state = DCS_DISC_DONE;
+ } else if (t->new_target_state == TS_PRESENT) {
+ struct atto_vda_ae_lu *luevt = &t->lu_event;
+
+ esas2r_trace_enter();
+
+ /* clear this now in case more events come in. */
+
+ t->new_target_state = TS_INVALID;
+
+ /* setup the discovery context for adding this device. */
+
+ dc->curr_virt_id = esas2r_targ_get_id(t, a);
+
+ if ((luevt->hdr.bylength >= offsetof(struct atto_vda_ae_lu, id)
+ + sizeof(struct atto_vda_ae_lu_tgt_lun_raid))
+ && !(luevt->dwevent & VDAAE_LU_PASSTHROUGH)) {
+ dc->block_size = luevt->id.tgtlun_raid.dwblock_size;
+ dc->interleave = luevt->id.tgtlun_raid.dwinterleave;
+ } else {
+ dc->block_size = 0;
+ dc->interleave = 0;
+ }
+
+ /* determine the device type being added. */
+
+ if (luevt->dwevent & VDAAE_LU_PASSTHROUGH) {
+ if (luevt->dwevent & VDAAE_LU_PHYS_ID) {
+ dc->state = DCS_PT_DEV_ADDR;
+ dc->dev_addr_type = ATTO_GDA_AT_PORT;
+ dc->curr_phys_id = luevt->wphys_target_id;
+ } else {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "luevt->dwevent does not have the "
+ "VDAAE_LU_PHYS_ID bit set (%s:%d)",
+ __func__, __LINE__);
+ }
+ } else {
+ dc->raid_grp_name[0] = 0;
+
+ esas2r_targ_db_add_raid(a, dc);
+ }
+
+ esas2r_trace("curr_virt_id: %d", dc->curr_virt_id);
+ esas2r_trace("curr_phys_id: %d", dc->curr_phys_id);
+ esas2r_trace("dwevent: %d", luevt->dwevent);
+
+ esas2r_trace_exit();
+ }
+
+ if (dc->state == DCS_DEV_ADD) {
+ /* go to the next device. */
+
+ dc->curr_targ++;
+ }
+
+ return false;
+}
+
+/*
+ * When discovery is done, find all requests on defer queue and
+ * test if they need to be modified. If a target is no longer present
+ * then complete the request with RS_SEL. Otherwise, update the
+ * target_id since after a hibernate it can be a different value.
+ * VDA does not make passthrough target IDs persistent.
+ */
+static void esas2r_disc_fix_curr_requests(struct esas2r_adapter *a)
+{
+ unsigned long flags;
+ struct esas2r_target *t;
+ struct esas2r_request *rq;
+ struct list_head *element;
+
+ /* update virt_targ_id in any outstanding esas2r_requests */
+
+ spin_lock_irqsave(&a->queue_lock, flags);
+
+ list_for_each(element, &a->defer_list) {
+ rq = list_entry(element, struct esas2r_request, req_list);
+ if (rq->vrq->scsi.function == VDA_FUNC_SCSI) {
+ t = a->targetdb + rq->target_id;
+
+ if (t->target_state == TS_PRESENT)
+ rq->vrq->scsi.target_id = le16_to_cpu(
+ t->virt_targ_id);
+ else
+ rq->req_stat = RS_SEL;
+ }
+
+ }
+
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+}
diff --git a/drivers/scsi/esas2r/esas2r_log.c b/drivers/scsi/esas2r/esas2r_log.c
new file mode 100644
index 0000000..651f52c
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_log.c
@@ -0,0 +1,254 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r_log.c
+ * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
+#include "esas2r.h"
+
+/*
+ * this module within the driver is tasked with providing logging functionality.
+ * the event_log_level module parameter controls the level of messages that are
+ * written to the system log. the default level of messages that are written
+ * are critical and warning messages. if other types of messages are desired,
+ * one simply needs to load the module with the correct value for the
+ * event_log_level module parameter. for example:
+ *
+ * insmod <module> event_log_level=1
+ *
+ * will load the module and only critical events will be written by this module
+ * to the system log. if critical, warning, and information-level messages are
+ * desired, the correct value for the event_log_level module parameter
+ * would be as follows:
+ *
+ * insmod <module> event_log_level=3
+ */
+
+#define EVENT_LOG_BUFF_SIZE 1024
+
+static long event_log_level = ESAS2R_LOG_DFLT;
+
+module_param(event_log_level, long, S_IRUGO | S_IRUSR);
+MODULE_PARM_DESC(event_log_level,
+ "Specifies the level of events to report to the system log. Critical and warning level events are logged by default.");
+
+/* A shared buffer to use for formatting messages. */
+static char event_buffer[EVENT_LOG_BUFF_SIZE];
+
+/* A lock to protect the shared buffer used for formatting messages. */
+static DEFINE_SPINLOCK(event_buffer_lock);
+
+/**
+ * translates an esas2r-defined logging event level to a kernel logging level.
+ *
+ * @param [in] level the esas2r-defined logging event level to translate
+ *
+ * @return the corresponding kernel logging level.
+ */
+static const char *translate_esas2r_event_level_to_kernel(const long level)
+{
+ switch (level) {
+ case ESAS2R_LOG_CRIT:
+ return KERN_CRIT;
+
+ case ESAS2R_LOG_WARN:
+ return KERN_WARNING;
+
+ case ESAS2R_LOG_INFO:
+ return KERN_INFO;
+
+ case ESAS2R_LOG_DEBG:
+ case ESAS2R_LOG_TRCE:
+ default:
+ return KERN_DEBUG;
+ }
+}
+
+/**
+ * the master logging function. this function will format the message as
+ * outlined by the formatting string, the input device information and the
+ * substitution arguments and output the resulting string to the system log.
+ *
+ * @param [in] level the event log level of the message
+ * @param [in] dev the device information
+ * @param [in] format the formatting string for the message
+ * @param [in] args the substition arguments to the formatting string
+ *
+ * @return 0 on success, or -1 if an error occurred.
+ */
+static int esas2r_log_master(const long level,
+ const struct device *dev,
+ const char *format,
+ va_list args)
+{
+ if (level <= event_log_level) {
+ unsigned long flags = 0;
+ int retval = 0;
+ char *buffer = event_buffer;
+ size_t buflen = EVENT_LOG_BUFF_SIZE;
+ const char *fmt_nodev = "%s%s: ";
+ const char *fmt_dev = "%s%s [%s, %s, %s]";
+ const char *slevel =
+ translate_esas2r_event_level_to_kernel(level);
+
+ spin_lock_irqsave(&event_buffer_lock, flags);
+
+ if (buffer == NULL) {
+ spin_unlock_irqrestore(&event_buffer_lock, flags);
+ return -1;
+ }
+
+ memset(buffer, 0, buflen);
+
+ /*
+ * format the level onto the beginning of the string and do
+ * some pointer arithmetic to move the pointer to the point
+ * where the actual message can be inserted.
+ */
+
+ if (dev == NULL) {
+ snprintf(buffer, buflen, fmt_nodev, slevel,
+ ESAS2R_DRVR_NAME);
+ } else {
+ snprintf(buffer, buflen, fmt_dev, slevel,
+ ESAS2R_DRVR_NAME,
+ (dev->driver ? dev->driver->name : "unknown"),
+ (dev->bus ? dev->bus->name : "unknown"),
+ dev_name(dev));
+ }
+
+ buffer += strlen(event_buffer);
+ buflen -= strlen(event_buffer);
+
+ retval = vsnprintf(buffer, buflen, format, args);
+ if (retval < 0) {
+ spin_unlock_irqrestore(&event_buffer_lock, flags);
+ return -1;
+ }
+
+ /*
+ * Put a line break at the end of the formatted string so that
+ * we don't wind up with run-on messages. only append if there
+ * is enough space in the buffer.
+ */
+ if (strlen(event_buffer) < buflen)
+ strcat(buffer, "\n");
+
+ printk(event_buffer);
+
+ spin_unlock_irqrestore(&event_buffer_lock, flags);
+ }
+
+ return 0;
+}
+
+/**
+ * formats and logs a message to the system log.
+ *
+ * @param [in] level the event level of the message
+ * @param [in] format the formating string for the message
+ * @param [in] ... the substitution arguments to the formatting string
+ *
+ * @return 0 on success, or -1 if an error occurred.
+ */
+int esas2r_log(const long level, const char *format, ...)
+{
+ int retval = 0;
+ va_list args;
+
+ va_start(args, format);
+
+ retval = esas2r_log_master(level, NULL, format, args);
+
+ va_end(args);
+
+ return retval;
+}
+
+/**
+ * formats and logs a message to the system log. this message will include
+ * device information.
+ *
+ * @param [in] level the event level of the message
+ * @param [in] dev the device information
+ * @param [in] format the formatting string for the message
+ * @param [in] ... the substitution arguments to the formatting string
+ *
+ * @return 0 on success, or -1 if an error occurred.
+ */
+int esas2r_log_dev(const long level,
+ const struct device *dev,
+ const char *format,
+ ...)
+{
+ int retval = 0;
+ va_list args;
+
+ va_start(args, format);
+
+ retval = esas2r_log_master(level, dev, format, args);
+
+ va_end(args);
+
+ return retval;
+}
+
+/**
+ * formats and logs a message to the system log. this message will include
+ * device information.
+ *
+ * @param [in] level the event level of the message
+ * @param [in] buf
+ * @param [in] len
+ *
+ * @return 0 on success, or -1 if an error occurred.
+ */
+int esas2r_log_hexdump(const long level,
+ const void *buf,
+ size_t len)
+{
+ if (level <= event_log_level) {
+ print_hex_dump(translate_esas2r_event_level_to_kernel(level),
+ "", DUMP_PREFIX_OFFSET, 16, 1, buf,
+ len, true);
+ }
+
+ return 1;
+}
diff --git a/drivers/scsi/esas2r/esas2r_log.h b/drivers/scsi/esas2r/esas2r_log.h
new file mode 100644
index 0000000..7b6397b
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_log.h
@@ -0,0 +1,118 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r_log.h
+ * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
+#ifndef __esas2r_log_h__
+#define __esas2r_log_h__
+
+struct device;
+
+enum {
+ ESAS2R_LOG_NONE = 0, /* no events logged */
+ ESAS2R_LOG_CRIT = 1, /* critical events */
+ ESAS2R_LOG_WARN = 2, /* warning events */
+ ESAS2R_LOG_INFO = 3, /* info events */
+ ESAS2R_LOG_DEBG = 4, /* debugging events */
+ ESAS2R_LOG_TRCE = 5, /* tracing events */
+
+#ifdef ESAS2R_TRACE
+ ESAS2R_LOG_DFLT = ESAS2R_LOG_TRCE
+#else
+ ESAS2R_LOG_DFLT = ESAS2R_LOG_WARN
+#endif
+};
+
+int esas2r_log(const long level, const char *format, ...);
+int esas2r_log_dev(const long level,
+ const struct device *dev,
+ const char *format,
+ ...);
+int esas2r_log_hexdump(const long level,
+ const void *buf,
+ size_t len);
+
+/*
+ * the following macros are provided specifically for debugging and tracing
+ * messages. esas2r_debug() is provided for generic non-hardware layer
+ * debugging and tracing events. esas2r_hdebug is provided specifically for
+ * hardware layer debugging and tracing events.
+ */
+
+#ifdef ESAS2R_DEBUG
+#define esas2r_debug(f, args ...) esas2r_log(ESAS2R_LOG_DEBG, f, ## args)
+#define esas2r_hdebug(f, args ...) esas2r_log(ESAS2R_LOG_DEBG, f, ## args)
+#else
+#define esas2r_debug(f, args ...)
+#define esas2r_hdebug(f, args ...)
+#endif /* ESAS2R_DEBUG */
+
+/*
+ * the following macros are provided in order to trace the driver and catch
+ * some more serious bugs. be warned, enabling these macros may *severely*
+ * impact performance.
+ */
+
+#ifdef ESAS2R_TRACE
+#define esas2r_bugon() \
+ do { \
+ esas2r_log(ESAS2R_LOG_TRCE, "esas2r_bugon() called in %s:%d" \
+ " - dumping stack and stopping kernel", __func__, \
+ __LINE__); \
+ dump_stack(); \
+ BUG(); \
+ } while (0)
+
+#define esas2r_trace_enter() esas2r_log(ESAS2R_LOG_TRCE, "entered %s (%s:%d)", \
+ __func__, __FILE__, __LINE__)
+#define esas2r_trace_exit() esas2r_log(ESAS2R_LOG_TRCE, "exited %s (%s:%d)", \
+ __func__, __FILE__, __LINE__)
+#define esas2r_trace(f, args ...) esas2r_log(ESAS2R_LOG_TRCE, "(%s:%s:%d): " \
+ f, __func__, __FILE__, __LINE__, \
+ ## args)
+#else
+#define esas2r_bugon()
+#define esas2r_trace_enter()
+#define esas2r_trace_exit()
+#define esas2r_trace(f, args ...)
+#endif /* ESAS2R_TRACE */
+
+#endif /* __esas2r_log_h__ */
--
1.8.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v4 05/10] SCSI: esas2r: Add interrupt and IO functions
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
` (3 preceding siblings ...)
2013-08-23 14:35 ` [PATCH v4 04/10] SCSI: esas2r: Add device discovery and logging functions Bradley Grove
@ 2013-08-23 14:35 ` Bradley Grove
2013-08-23 14:35 ` [PATCH v4 06/10] SCSI: esas2r: Add flash and target database functions Bradley Grove
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Bradley Grove @ 2013-08-23 14:35 UTC (permalink / raw)
To: linux-scsi, jbottomley; +Cc: jseba, Bradley Grove
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
drivers/scsi/esas2r/esas2r_int.c | 941 +++++++++++++++++++++++++++++++++++++++
drivers/scsi/esas2r/esas2r_io.c | 883 ++++++++++++++++++++++++++++++++++++
2 files changed, 1824 insertions(+)
create mode 100644 drivers/scsi/esas2r/esas2r_int.c
create mode 100644 drivers/scsi/esas2r/esas2r_io.c
diff --git a/drivers/scsi/esas2r/esas2r_int.c b/drivers/scsi/esas2r/esas2r_int.c
new file mode 100644
index 0000000..c2d4ff5
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_int.c
@@ -0,0 +1,941 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r_int.c
+ * esas2r interrupt handling
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+
+#include "esas2r.h"
+
+/* Local function prototypes */
+static void esas2r_doorbell_interrupt(struct esas2r_adapter *a, u32 doorbell);
+static void esas2r_get_outbound_responses(struct esas2r_adapter *a);
+static void esas2r_process_bus_reset(struct esas2r_adapter *a);
+
+/*
+ * Poll the adapter for interrupts and service them.
+ * This function handles both legacy interrupts and MSI.
+ */
+void esas2r_polled_interrupt(struct esas2r_adapter *a)
+{
+ u32 intstat;
+ u32 doorbell;
+
+ esas2r_disable_chip_interrupts(a);
+
+ intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
+
+ if (intstat & MU_INTSTAT_POST_OUT) {
+ /* clear the interrupt */
+
+ esas2r_write_register_dword(a, MU_OUT_LIST_INT_STAT,
+ MU_OLIS_INT);
+ esas2r_flush_register_dword(a, MU_OUT_LIST_INT_STAT);
+
+ esas2r_get_outbound_responses(a);
+ }
+
+ if (intstat & MU_INTSTAT_DRBL) {
+ doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
+ if (doorbell != 0)
+ esas2r_doorbell_interrupt(a, doorbell);
+ }
+
+ esas2r_enable_chip_interrupts(a);
+
+ if (atomic_read(&a->disable_cnt) == 0)
+ esas2r_do_deferred_processes(a);
+}
+
+/*
+ * Legacy and MSI interrupt handlers. Note that the legacy interrupt handler
+ * schedules a TASKLET to process events, whereas the MSI handler just
+ * processes interrupt events directly.
+ */
+irqreturn_t esas2r_interrupt(int irq, void *dev_id)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)dev_id;
+
+ if (!esas2r_adapter_interrupt_pending(a))
+ return IRQ_NONE;
+
+ esas2r_lock_set_flags(&a->flags2, AF2_INT_PENDING);
+ esas2r_schedule_tasklet(a);
+
+ return IRQ_HANDLED;
+}
+
+void esas2r_adapter_interrupt(struct esas2r_adapter *a)
+{
+ u32 doorbell;
+
+ if (likely(a->int_stat & MU_INTSTAT_POST_OUT)) {
+ /* clear the interrupt */
+ esas2r_write_register_dword(a, MU_OUT_LIST_INT_STAT,
+ MU_OLIS_INT);
+ esas2r_flush_register_dword(a, MU_OUT_LIST_INT_STAT);
+ esas2r_get_outbound_responses(a);
+ }
+
+ if (unlikely(a->int_stat & MU_INTSTAT_DRBL)) {
+ doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
+ if (doorbell != 0)
+ esas2r_doorbell_interrupt(a, doorbell);
+ }
+
+ a->int_mask = ESAS2R_INT_STS_MASK;
+
+ esas2r_enable_chip_interrupts(a);
+
+ if (likely(atomic_read(&a->disable_cnt) == 0))
+ esas2r_do_deferred_processes(a);
+}
+
+irqreturn_t esas2r_msi_interrupt(int irq, void *dev_id)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)dev_id;
+ u32 intstat;
+ u32 doorbell;
+
+ intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
+
+ if (likely(intstat & MU_INTSTAT_POST_OUT)) {
+ /* clear the interrupt */
+
+ esas2r_write_register_dword(a, MU_OUT_LIST_INT_STAT,
+ MU_OLIS_INT);
+ esas2r_flush_register_dword(a, MU_OUT_LIST_INT_STAT);
+
+ esas2r_get_outbound_responses(a);
+ }
+
+ if (unlikely(intstat & MU_INTSTAT_DRBL)) {
+ doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
+ if (doorbell != 0)
+ esas2r_doorbell_interrupt(a, doorbell);
+ }
+
+ /*
+ * Work around a chip bug and force a new MSI to be sent if one is
+ * still pending.
+ */
+ esas2r_disable_chip_interrupts(a);
+ esas2r_enable_chip_interrupts(a);
+
+ if (likely(atomic_read(&a->disable_cnt) == 0))
+ esas2r_do_deferred_processes(a);
+
+ esas2r_do_tasklet_tasks(a);
+
+ return 1;
+}
+
+
+
+static void esas2r_handle_outbound_rsp_err(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ struct atto_vda_ob_rsp *rsp)
+{
+
+ /*
+ * For I/O requests, only copy the response if an error
+ * occurred and setup a callback to do error processing.
+ */
+ if (unlikely(rq->req_stat != RS_SUCCESS)) {
+ memcpy(&rq->func_rsp, &rsp->func_rsp, sizeof(rsp->func_rsp));
+
+ if (rq->req_stat == RS_ABORTED) {
+ if (rq->timeout > RQ_MAX_TIMEOUT)
+ rq->req_stat = RS_TIMEOUT;
+ } else if (rq->req_stat == RS_SCSI_ERROR) {
+ u8 scsistatus = rq->func_rsp.scsi_rsp.scsi_stat;
+
+ esas2r_trace("scsistatus: %x", scsistatus);
+
+ /* Any of these are a good result. */
+ if (scsistatus == SAM_STAT_GOOD || scsistatus ==
+ SAM_STAT_CONDITION_MET || scsistatus ==
+ SAM_STAT_INTERMEDIATE || scsistatus ==
+ SAM_STAT_INTERMEDIATE_CONDITION_MET) {
+ rq->req_stat = RS_SUCCESS;
+ rq->func_rsp.scsi_rsp.scsi_stat =
+ SAM_STAT_GOOD;
+ }
+ }
+ }
+}
+
+static void esas2r_get_outbound_responses(struct esas2r_adapter *a)
+{
+ struct atto_vda_ob_rsp *rsp;
+ u32 rspput_ptr;
+ u32 rspget_ptr;
+ struct esas2r_request *rq;
+ u32 handle;
+ unsigned long flags;
+
+ LIST_HEAD(comp_list);
+
+ esas2r_trace_enter();
+
+ spin_lock_irqsave(&a->queue_lock, flags);
+
+ /* Get the outbound limit and pointers */
+ rspput_ptr = le32_to_cpu(*a->outbound_copy) & MU_OLC_WRT_PTR;
+ rspget_ptr = a->last_read;
+
+ esas2r_trace("rspput_ptr: %x, rspget_ptr: %x", rspput_ptr, rspget_ptr);
+
+ /* If we don't have anything to process, get out */
+ if (unlikely(rspget_ptr == rspput_ptr)) {
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+ esas2r_trace_exit();
+ return;
+ }
+
+ /* Make sure the firmware is healthy */
+ if (unlikely(rspput_ptr >= a->list_size)) {
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+ esas2r_bugon();
+ esas2r_local_reset_adapter(a);
+ esas2r_trace_exit();
+ return;
+ }
+
+ do {
+ rspget_ptr++;
+
+ if (rspget_ptr >= a->list_size)
+ rspget_ptr = 0;
+
+ rsp = (struct atto_vda_ob_rsp *)a->outbound_list_md.virt_addr
+ + rspget_ptr;
+
+ handle = rsp->handle;
+
+ /* Verify the handle range */
+ if (unlikely(LOWORD(handle) == 0
+ || LOWORD(handle) > num_requests +
+ num_ae_requests + 1)) {
+ esas2r_bugon();
+ continue;
+ }
+
+ /* Get the request for this handle */
+ rq = a->req_table[LOWORD(handle)];
+
+ if (unlikely(rq == NULL || rq->vrq->scsi.handle != handle)) {
+ esas2r_bugon();
+ continue;
+ }
+
+ list_del(&rq->req_list);
+
+ /* Get the completion status */
+ rq->req_stat = rsp->req_stat;
+
+ esas2r_trace("handle: %x", handle);
+ esas2r_trace("rq: %p", rq);
+ esas2r_trace("req_status: %x", rq->req_stat);
+
+ if (likely(rq->vrq->scsi.function == VDA_FUNC_SCSI)) {
+ esas2r_handle_outbound_rsp_err(a, rq, rsp);
+ } else {
+ /*
+ * Copy the outbound completion struct for non-I/O
+ * requests.
+ */
+ memcpy(&rq->func_rsp, &rsp->func_rsp,
+ sizeof(rsp->func_rsp));
+ }
+
+ /* Queue the request for completion. */
+ list_add_tail(&rq->comp_list, &comp_list);
+
+ } while (rspget_ptr != rspput_ptr);
+
+ a->last_read = rspget_ptr;
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+
+ esas2r_comp_list_drain(a, &comp_list);
+ esas2r_trace_exit();
+}
+
+/*
+ * Perform all deferred processes for the adapter. Deferred
+ * processes can only be done while the current interrupt
+ * disable_cnt for the adapter is zero.
+ */
+void esas2r_do_deferred_processes(struct esas2r_adapter *a)
+{
+ int startreqs = 2;
+ struct esas2r_request *rq;
+ unsigned long flags;
+
+ /*
+ * startreqs is used to control starting requests
+ * that are on the deferred queue
+ * = 0 - do not start any requests
+ * = 1 - can start discovery requests
+ * = 2 - can start any request
+ */
+
+ if (a->flags & (AF_CHPRST_PENDING | AF_FLASHING))
+ startreqs = 0;
+ else if (a->flags & AF_DISC_PENDING)
+ startreqs = 1;
+
+ atomic_inc(&a->disable_cnt);
+
+ /* Clear off the completed list to be processed later. */
+
+ if (esas2r_is_tasklet_pending(a)) {
+ esas2r_schedule_tasklet(a);
+
+ startreqs = 0;
+ }
+
+ /*
+ * If we can start requests then traverse the defer queue
+ * looking for requests to start or complete
+ */
+ if (startreqs && !list_empty(&a->defer_list)) {
+ LIST_HEAD(comp_list);
+ struct list_head *element, *next;
+
+ spin_lock_irqsave(&a->queue_lock, flags);
+
+ list_for_each_safe(element, next, &a->defer_list) {
+ rq = list_entry(element, struct esas2r_request,
+ req_list);
+
+ if (rq->req_stat != RS_PENDING) {
+ list_del(element);
+ list_add_tail(&rq->comp_list, &comp_list);
+ }
+ /*
+ * Process discovery and OS requests separately. We
+ * can't hold up discovery requests when discovery is
+ * pending. In general, there may be different sets of
+ * conditions for starting different types of requests.
+ */
+ else if (rq->req_type == RT_DISC_REQ) {
+ list_del(element);
+ esas2r_disc_local_start_request(a, rq);
+ } else if (startreqs == 2) {
+ list_del(element);
+ esas2r_local_start_request(a, rq);
+
+ /*
+ * Flashing could have been set by last local
+ * start
+ */
+ if (a->flags & AF_FLASHING)
+ break;
+ }
+ }
+
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+ esas2r_comp_list_drain(a, &comp_list);
+ }
+
+ atomic_dec(&a->disable_cnt);
+}
+
+/*
+ * Process an adapter reset (or one that is about to happen)
+ * by making sure all outstanding requests are completed that
+ * haven't been already.
+ */
+void esas2r_process_adapter_reset(struct esas2r_adapter *a)
+{
+ struct esas2r_request *rq = &a->general_req;
+ unsigned long flags;
+ struct esas2r_disc_context *dc;
+
+ LIST_HEAD(comp_list);
+ struct list_head *element;
+
+ esas2r_trace_enter();
+
+ spin_lock_irqsave(&a->queue_lock, flags);
+
+ /* abort the active discovery, if any. */
+
+ if (rq->interrupt_cx) {
+ dc = (struct esas2r_disc_context *)rq->interrupt_cx;
+
+ dc->disc_evt = 0;
+
+ esas2r_lock_clear_flags(&a->flags, AF_DISC_IN_PROG);
+ }
+
+ /*
+ * just clear the interrupt callback for now. it will be dequeued if
+ * and when we find it on the active queue and we don't want the
+ * callback called. also set the dummy completion callback in case we
+ * were doing an I/O request.
+ */
+
+ rq->interrupt_cx = NULL;
+ rq->interrupt_cb = NULL;
+
+ rq->comp_cb = esas2r_dummy_complete;
+
+ /* Reset the read and write pointers */
+
+ *a->outbound_copy =
+ a->last_write =
+ a->last_read = a->list_size - 1;
+
+ esas2r_lock_set_flags(&a->flags, AF_COMM_LIST_TOGGLE);
+
+ /* Kill all the requests on the active list */
+ list_for_each(element, &a->defer_list) {
+ rq = list_entry(element, struct esas2r_request, req_list);
+
+ if (rq->req_stat == RS_STARTED)
+ if (esas2r_ioreq_aborted(a, rq, RS_ABORTED))
+ list_add_tail(&rq->comp_list, &comp_list);
+ }
+
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+ esas2r_comp_list_drain(a, &comp_list);
+ esas2r_process_bus_reset(a);
+ esas2r_trace_exit();
+}
+
+static void esas2r_process_bus_reset(struct esas2r_adapter *a)
+{
+ struct esas2r_request *rq;
+ struct list_head *element;
+ unsigned long flags;
+
+ LIST_HEAD(comp_list);
+
+ esas2r_trace_enter();
+
+ esas2r_hdebug("reset detected");
+
+ spin_lock_irqsave(&a->queue_lock, flags);
+
+ /* kill all the requests on the deferred queue */
+ list_for_each(element, &a->defer_list) {
+ rq = list_entry(element, struct esas2r_request, req_list);
+ if (esas2r_ioreq_aborted(a, rq, RS_ABORTED))
+ list_add_tail(&rq->comp_list, &comp_list);
+ }
+
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+
+ esas2r_comp_list_drain(a, &comp_list);
+
+ if (atomic_read(&a->disable_cnt) == 0)
+ esas2r_do_deferred_processes(a);
+
+ esas2r_lock_clear_flags(&a->flags, AF_OS_RESET);
+
+ esas2r_trace_exit();
+}
+
+static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
+{
+
+ esas2r_lock_clear_flags(&a->flags, AF_CHPRST_NEEDED);
+ esas2r_lock_clear_flags(&a->flags, AF_BUSRST_NEEDED);
+ esas2r_lock_clear_flags(&a->flags, AF_BUSRST_DETECTED);
+ esas2r_lock_clear_flags(&a->flags, AF_BUSRST_PENDING);
+ /*
+ * Make sure we don't get attempt more than 3 resets
+ * when the uptime between resets does not exceed one
+ * minute. This will stop any situation where there is
+ * really something wrong with the hardware. The way
+ * this works is that we start with uptime ticks at 0.
+ * Each time we do a reset, we add 20 seconds worth to
+ * the count. Each time a timer tick occurs, as long
+ * as a chip reset is not pending, we decrement the
+ * tick count. If the uptime ticks ever gets to 60
+ * seconds worth, we disable the adapter from that
+ * point forward. Three strikes, you're out.
+ */
+ if (!esas2r_is_adapter_present(a) || (a->chip_uptime >=
+ ESAS2R_CHP_UPTIME_MAX)) {
+ esas2r_hdebug("*** adapter disabled ***");
+
+ /*
+ * Ok, some kind of hard failure. Make sure we
+ * exit this loop with chip interrupts
+ * permanently disabled so we don't lock up the
+ * entire system. Also flag degraded mode to
+ * prevent the heartbeat from trying to recover.
+ */
+
+ esas2r_lock_set_flags(&a->flags, AF_DEGRADED_MODE);
+ esas2r_lock_set_flags(&a->flags, AF_DISABLED);
+ esas2r_lock_clear_flags(&a->flags, AF_CHPRST_PENDING);
+ esas2r_lock_clear_flags(&a->flags, AF_DISC_PENDING);
+
+ esas2r_disable_chip_interrupts(a);
+ a->int_mask = 0;
+ esas2r_process_adapter_reset(a);
+
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "Adapter disabled because of hardware failure");
+ } else {
+ u32 flags =
+ esas2r_lock_set_flags(&a->flags, AF_CHPRST_STARTED);
+
+ if (!(flags & AF_CHPRST_STARTED))
+ /*
+ * Only disable interrupts if this is
+ * the first reset attempt.
+ */
+ esas2r_disable_chip_interrupts(a);
+
+ if ((a->flags & AF_POWER_MGT) && !(a->flags & AF_FIRST_INIT) &&
+ !(flags & AF_CHPRST_STARTED)) {
+ /*
+ * Don't reset the chip on the first
+ * deferred power up attempt.
+ */
+ } else {
+ esas2r_hdebug("*** resetting chip ***");
+ esas2r_reset_chip(a);
+ }
+
+ /* Kick off the reinitialization */
+ a->chip_uptime += ESAS2R_CHP_UPTIME_CNT;
+ a->chip_init_time = jiffies_to_msecs(jiffies);
+ if (!(a->flags & AF_POWER_MGT)) {
+ esas2r_process_adapter_reset(a);
+
+ if (!(flags & AF_CHPRST_STARTED)) {
+ /* Remove devices now that I/O is cleaned up. */
+ a->prev_dev_cnt =
+ esas2r_targ_db_get_tgt_cnt(a);
+ esas2r_targ_db_remove_all(a, false);
+ }
+ }
+
+ a->int_mask = 0;
+ }
+}
+
+static void esas2r_handle_chip_rst_during_tasklet(struct esas2r_adapter *a)
+{
+ while (a->flags & AF_CHPRST_DETECTED) {
+ /*
+ * Balance the enable in esas2r_initadapter_hw.
+ * Esas2r_power_down already took care of it for power
+ * management.
+ */
+ if (!(a->flags & AF_DEGRADED_MODE) && !(a->flags &
+ AF_POWER_MGT))
+ esas2r_disable_chip_interrupts(a);
+
+ /* Reinitialize the chip. */
+ esas2r_check_adapter(a);
+ esas2r_init_adapter_hw(a, 0);
+
+ if (a->flags & AF_CHPRST_NEEDED)
+ break;
+
+ if (a->flags & AF_POWER_MGT) {
+ /* Recovery from power management. */
+ if (a->flags & AF_FIRST_INIT) {
+ /* Chip reset during normal power up */
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "The firmware was reset during a normal power-up sequence");
+ } else {
+ /* Deferred power up complete. */
+ esas2r_lock_clear_flags(&a->flags,
+ AF_POWER_MGT);
+ esas2r_send_reset_ae(a, true);
+ }
+ } else {
+ /* Recovery from online chip reset. */
+ if (a->flags & AF_FIRST_INIT) {
+ /* Chip reset during driver load */
+ } else {
+ /* Chip reset after driver load */
+ esas2r_send_reset_ae(a, false);
+ }
+
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "Recovering from a chip reset while the chip was online");
+ }
+
+ esas2r_lock_clear_flags(&a->flags, AF_CHPRST_STARTED);
+ esas2r_enable_chip_interrupts(a);
+
+ /*
+ * Clear this flag last! this indicates that the chip has been
+ * reset already during initialization.
+ */
+ esas2r_lock_clear_flags(&a->flags, AF_CHPRST_DETECTED);
+ }
+}
+
+
+/* Perform deferred tasks when chip interrupts are disabled */
+void esas2r_do_tasklet_tasks(struct esas2r_adapter *a)
+{
+ if (a->flags & (AF_CHPRST_NEEDED | AF_CHPRST_DETECTED)) {
+ if (a->flags & AF_CHPRST_NEEDED)
+ esas2r_chip_rst_needed_during_tasklet(a);
+
+ esas2r_handle_chip_rst_during_tasklet(a);
+ }
+
+ if (a->flags & AF_BUSRST_NEEDED) {
+ esas2r_hdebug("hard resetting bus");
+
+ esas2r_lock_clear_flags(&a->flags, AF_BUSRST_NEEDED);
+
+ if (a->flags & AF_FLASHING)
+ esas2r_lock_set_flags(&a->flags, AF_BUSRST_DETECTED);
+ else
+ esas2r_write_register_dword(a, MU_DOORBELL_IN,
+ DRBL_RESET_BUS);
+ }
+
+ if (a->flags & AF_BUSRST_DETECTED) {
+ esas2r_process_bus_reset(a);
+
+ esas2r_log_dev(ESAS2R_LOG_WARN,
+ &(a->host->shost_gendev),
+ "scsi_report_bus_reset() called");
+
+ scsi_report_bus_reset(a->host, 0);
+
+ esas2r_lock_clear_flags(&a->flags, AF_BUSRST_DETECTED);
+ esas2r_lock_clear_flags(&a->flags, AF_BUSRST_PENDING);
+
+ esas2r_log(ESAS2R_LOG_WARN, "Bus reset complete");
+ }
+
+ if (a->flags & AF_PORT_CHANGE) {
+ esas2r_lock_clear_flags(&a->flags, AF_PORT_CHANGE);
+
+ esas2r_targ_db_report_changes(a);
+ }
+
+ if (atomic_read(&a->disable_cnt) == 0)
+ esas2r_do_deferred_processes(a);
+}
+
+static void esas2r_doorbell_interrupt(struct esas2r_adapter *a, u32 doorbell)
+{
+ if (!(doorbell & DRBL_FORCE_INT)) {
+ esas2r_trace_enter();
+ esas2r_trace("doorbell: %x", doorbell);
+ }
+
+ /* First clear the doorbell bits */
+ esas2r_write_register_dword(a, MU_DOORBELL_OUT, doorbell);
+
+ if (doorbell & DRBL_RESET_BUS)
+ esas2r_lock_set_flags(&a->flags, AF_BUSRST_DETECTED);
+
+ if (doorbell & DRBL_FORCE_INT)
+ esas2r_lock_clear_flags(&a->flags, AF_HEARTBEAT);
+
+ if (doorbell & DRBL_PANIC_REASON_MASK) {
+ esas2r_hdebug("*** Firmware Panic ***");
+ esas2r_log(ESAS2R_LOG_CRIT, "The firmware has panicked");
+ }
+
+ if (doorbell & DRBL_FW_RESET) {
+ esas2r_lock_set_flags(&a->flags2, AF2_COREDUMP_AVAIL);
+ esas2r_local_reset_adapter(a);
+ }
+
+ if (!(doorbell & DRBL_FORCE_INT))
+ esas2r_trace_exit();
+}
+
+void esas2r_force_interrupt(struct esas2r_adapter *a)
+{
+ esas2r_write_register_dword(a, MU_DOORBELL_IN, DRBL_FORCE_INT |
+ DRBL_DRV_VER);
+}
+
+
+static void esas2r_lun_event(struct esas2r_adapter *a, union atto_vda_ae *ae,
+ u16 target, u32 length)
+{
+ struct esas2r_target *t = a->targetdb + target;
+ u32 cplen = length;
+ unsigned long flags;
+
+ if (cplen > sizeof(t->lu_event))
+ cplen = sizeof(t->lu_event);
+
+ esas2r_trace("ae->lu.dwevent: %x", ae->lu.dwevent);
+ esas2r_trace("ae->lu.bystate: %x", ae->lu.bystate);
+
+ spin_lock_irqsave(&a->mem_lock, flags);
+
+ t->new_target_state = TS_INVALID;
+
+ if (ae->lu.dwevent & VDAAE_LU_LOST) {
+ t->new_target_state = TS_NOT_PRESENT;
+ } else {
+ switch (ae->lu.bystate) {
+ case VDAAE_LU_NOT_PRESENT:
+ case VDAAE_LU_OFFLINE:
+ case VDAAE_LU_DELETED:
+ case VDAAE_LU_FACTORY_DISABLED:
+ t->new_target_state = TS_NOT_PRESENT;
+ break;
+
+ case VDAAE_LU_ONLINE:
+ case VDAAE_LU_DEGRADED:
+ t->new_target_state = TS_PRESENT;
+ break;
+ }
+ }
+
+ if (t->new_target_state != TS_INVALID) {
+ memcpy(&t->lu_event, &ae->lu, cplen);
+
+ esas2r_disc_queue_event(a, DCDE_DEV_CHANGE);
+ }
+
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+}
+
+
+
+void esas2r_ae_complete(struct esas2r_adapter *a, struct esas2r_request *rq)
+{
+ union atto_vda_ae *ae =
+ (union atto_vda_ae *)rq->vda_rsp_data->ae_data.event_data;
+ u32 length = le32_to_cpu(rq->func_rsp.ae_rsp.length);
+ union atto_vda_ae *last =
+ (union atto_vda_ae *)(rq->vda_rsp_data->ae_data.event_data
+ + length);
+
+ esas2r_trace_enter();
+ esas2r_trace("length: %d", length);
+
+ if (length > sizeof(struct atto_vda_ae_data)
+ || (length & 3) != 0
+ || length == 0) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "The AE request response length (%p) is too long: %d",
+ rq, length);
+
+ esas2r_hdebug("aereq->length (0x%x) too long", length);
+ esas2r_bugon();
+
+ last = ae;
+ }
+
+ while (ae < last) {
+ u16 target;
+
+ esas2r_trace("ae: %p", ae);
+ esas2r_trace("ae->hdr: %p", &(ae->hdr));
+
+ length = ae->hdr.bylength;
+
+ if (length > (u32)((u8 *)last - (u8 *)ae)
+ || (length & 3) != 0
+ || length == 0) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "the async event length is invalid (%p): %d",
+ ae, length);
+
+ esas2r_hdebug("ae->hdr.length (0x%x) invalid", length);
+ esas2r_bugon();
+
+ break;
+ }
+
+ esas2r_nuxi_ae_data(ae);
+
+ esas2r_queue_fw_event(a, fw_event_vda_ae, ae,
+ sizeof(union atto_vda_ae));
+
+ switch (ae->hdr.bytype) {
+ case VDAAE_HDR_TYPE_RAID:
+
+ if (ae->raid.dwflags & (VDAAE_GROUP_STATE
+ | VDAAE_RBLD_STATE
+ | VDAAE_MEMBER_CHG
+ | VDAAE_PART_CHG)) {
+ esas2r_log(ESAS2R_LOG_INFO,
+ "RAID event received - name:%s rebuild_state:%d group_state:%d",
+ ae->raid.acname,
+ ae->raid.byrebuild_state,
+ ae->raid.bygroup_state);
+ }
+
+ break;
+
+ case VDAAE_HDR_TYPE_LU:
+ esas2r_log(ESAS2R_LOG_INFO,
+ "LUN event received: event:%d target_id:%d LUN:%d state:%d",
+ ae->lu.dwevent,
+ ae->lu.id.tgtlun.wtarget_id,
+ ae->lu.id.tgtlun.bylun,
+ ae->lu.bystate);
+
+ target = ae->lu.id.tgtlun.wtarget_id;
+
+ if (target < ESAS2R_MAX_TARGETS)
+ esas2r_lun_event(a, ae, target, length);
+
+ break;
+
+ case VDAAE_HDR_TYPE_DISK:
+ esas2r_log(ESAS2R_LOG_INFO, "Disk event received");
+ break;
+
+ default:
+
+ /* Silently ignore the rest and let the apps deal with
+ * them.
+ */
+
+ break;
+ }
+
+ ae = (union atto_vda_ae *)((u8 *)ae + length);
+ }
+
+ /* Now requeue it. */
+ esas2r_start_ae_request(a, rq);
+ esas2r_trace_exit();
+}
+
+/* Send an asynchronous event for a chip reset or power management. */
+void esas2r_send_reset_ae(struct esas2r_adapter *a, bool pwr_mgt)
+{
+ struct atto_vda_ae_hdr ae;
+
+ if (pwr_mgt)
+ ae.bytype = VDAAE_HDR_TYPE_PWRMGT;
+ else
+ ae.bytype = VDAAE_HDR_TYPE_RESET;
+
+ ae.byversion = VDAAE_HDR_VER_0;
+ ae.byflags = 0;
+ ae.bylength = (u8)sizeof(struct atto_vda_ae_hdr);
+
+ if (pwr_mgt)
+ esas2r_hdebug("*** sending power management AE ***");
+ else
+ esas2r_hdebug("*** sending reset AE ***");
+
+ esas2r_queue_fw_event(a, fw_event_vda_ae, &ae,
+ sizeof(union atto_vda_ae));
+}
+
+void esas2r_dummy_complete(struct esas2r_adapter *a, struct esas2r_request *rq)
+{}
+
+static void esas2r_check_req_rsp_sense(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ u8 snslen, snslen2;
+
+ snslen = snslen2 = rq->func_rsp.scsi_rsp.sense_len;
+
+ if (snslen > rq->sense_len)
+ snslen = rq->sense_len;
+
+ if (snslen) {
+ if (rq->sense_buf)
+ memcpy(rq->sense_buf, rq->data_buf, snslen);
+ else
+ rq->sense_buf = (u8 *)rq->data_buf;
+
+ /* See about possible sense data */
+ if (snslen2 > 0x0c) {
+ u8 *s = (u8 *)rq->data_buf;
+
+ esas2r_trace_enter();
+
+ /* Report LUNS data has changed */
+ if (s[0x0c] == 0x3f && s[0x0d] == 0x0E) {
+ esas2r_trace("rq->target_id: %d",
+ rq->target_id);
+ esas2r_target_state_changed(a, rq->target_id,
+ TS_LUN_CHANGE);
+ }
+
+ esas2r_trace("add_sense_key=%x", s[0x0c]);
+ esas2r_trace("add_sense_qual=%x", s[0x0d]);
+ esas2r_trace_exit();
+ }
+ }
+
+ rq->sense_len = snslen;
+}
+
+
+void esas2r_complete_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ if (rq->vrq->scsi.function == VDA_FUNC_FLASH
+ && rq->vrq->flash.sub_func == VDA_FLASH_COMMIT)
+ esas2r_lock_clear_flags(&a->flags, AF_FLASHING);
+
+ /* See if we setup a callback to do special processing */
+
+ if (rq->interrupt_cb) {
+ (*rq->interrupt_cb)(a, rq);
+
+ if (rq->req_stat == RS_PENDING) {
+ esas2r_start_request(a, rq);
+ return;
+ }
+ }
+
+ if (likely(rq->vrq->scsi.function == VDA_FUNC_SCSI)
+ && unlikely(rq->req_stat != RS_SUCCESS)) {
+ esas2r_check_req_rsp_sense(a, rq);
+ esas2r_log_request_failure(a, rq);
+ }
+
+ (*rq->comp_cb)(a, rq);
+}
diff --git a/drivers/scsi/esas2r/esas2r_io.c b/drivers/scsi/esas2r/esas2r_io.c
new file mode 100644
index 0000000..02ec7aa
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_io.c
@@ -0,0 +1,880 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r_io.c
+ * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)mpt3sas/mpt3sas_trigger_diag.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
+#include "esas2r.h"
+
+void esas2r_start_request(struct esas2r_adapter *a, struct esas2r_request *rq)
+{
+ struct esas2r_target *t = NULL;
+ struct esas2r_request *startrq = rq;
+ unsigned long flags;
+
+ if (unlikely(a->flags & (AF_DEGRADED_MODE | AF_POWER_DOWN))) {
+ if (rq->vrq->scsi.function == VDA_FUNC_SCSI)
+ rq->req_stat = RS_SEL2;
+ else
+ rq->req_stat = RS_DEGRADED;
+ } else if (likely(rq->vrq->scsi.function == VDA_FUNC_SCSI)) {
+ t = a->targetdb + rq->target_id;
+
+ if (unlikely(t >= a->targetdb_end
+ || !(t->flags & TF_USED))) {
+ rq->req_stat = RS_SEL;
+ } else {
+ /* copy in the target ID. */
+ rq->vrq->scsi.target_id = cpu_to_le16(t->virt_targ_id);
+
+ /*
+ * Test if we want to report RS_SEL for missing target.
+ * Note that if AF_DISC_PENDING is set than this will
+ * go on the defer queue.
+ */
+ if (unlikely(t->target_state != TS_PRESENT
+ && !(a->flags & AF_DISC_PENDING)))
+ rq->req_stat = RS_SEL;
+ }
+ }
+
+ if (unlikely(rq->req_stat != RS_PENDING)) {
+ esas2r_complete_request(a, rq);
+ return;
+ }
+
+ esas2r_trace("rq=%p", rq);
+ esas2r_trace("rq->vrq->scsi.handle=%x", rq->vrq->scsi.handle);
+
+ if (rq->vrq->scsi.function == VDA_FUNC_SCSI) {
+ esas2r_trace("rq->target_id=%d", rq->target_id);
+ esas2r_trace("rq->vrq->scsi.flags=%x", rq->vrq->scsi.flags);
+ }
+
+ spin_lock_irqsave(&a->queue_lock, flags);
+
+ if (likely(list_empty(&a->defer_list) &&
+ !(a->flags &
+ (AF_CHPRST_PENDING | AF_FLASHING | AF_DISC_PENDING))))
+ esas2r_local_start_request(a, startrq);
+ else
+ list_add_tail(&startrq->req_list, &a->defer_list);
+
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+}
+
+/*
+ * Starts the specified request. all requests have RS_PENDING set when this
+ * routine is called. The caller is usually esas2r_start_request, but
+ * esas2r_do_deferred_processes will start request that are deferred.
+ *
+ * The caller must ensure that requests can be started.
+ *
+ * esas2r_start_request will defer a request if there are already requests
+ * waiting or there is a chip reset pending. once the reset condition clears,
+ * esas2r_do_deferred_processes will call this function to start the request.
+ *
+ * When a request is started, it is placed on the active list and queued to
+ * the controller.
+ */
+void esas2r_local_start_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ esas2r_trace_enter();
+ esas2r_trace("rq=%p", rq);
+ esas2r_trace("rq->vrq:%p", rq->vrq);
+ esas2r_trace("rq->vrq_md->phys_addr:%x", rq->vrq_md->phys_addr);
+
+ if (unlikely(rq->vrq->scsi.function == VDA_FUNC_FLASH
+ && rq->vrq->flash.sub_func == VDA_FLASH_COMMIT))
+ esas2r_lock_set_flags(&a->flags, AF_FLASHING);
+
+ list_add_tail(&rq->req_list, &a->active_list);
+ esas2r_start_vda_request(a, rq);
+ esas2r_trace_exit();
+ return;
+}
+
+void esas2r_start_vda_request(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_inbound_list_source_entry *element;
+ u32 dw;
+
+ rq->req_stat = RS_STARTED;
+ /*
+ * Calculate the inbound list entry location and the current state of
+ * toggle bit.
+ */
+ a->last_write++;
+ if (a->last_write >= a->list_size) {
+ a->last_write = 0;
+ /* update the toggle bit */
+ if (a->flags & AF_COMM_LIST_TOGGLE)
+ esas2r_lock_clear_flags(&a->flags,
+ AF_COMM_LIST_TOGGLE);
+ else
+ esas2r_lock_set_flags(&a->flags, AF_COMM_LIST_TOGGLE);
+ }
+
+ element =
+ (struct esas2r_inbound_list_source_entry *)a->inbound_list_md.
+ virt_addr
+ + a->last_write;
+
+ /* Set the VDA request size if it was never modified */
+ if (rq->vda_req_sz == RQ_SIZE_DEFAULT)
+ rq->vda_req_sz = (u16)(a->max_vdareq_size / sizeof(u32));
+
+ element->address = cpu_to_le64(rq->vrq_md->phys_addr);
+ element->length = cpu_to_le32(rq->vda_req_sz);
+
+ /* Update the write pointer */
+ dw = a->last_write;
+
+ if (a->flags & AF_COMM_LIST_TOGGLE)
+ dw |= MU_ILW_TOGGLE;
+
+ esas2r_trace("rq->vrq->scsi.handle:%x", rq->vrq->scsi.handle);
+ esas2r_trace("dw:%x", dw);
+ esas2r_trace("rq->vda_req_sz:%x", rq->vda_req_sz);
+ esas2r_write_register_dword(a, MU_IN_LIST_WRITE, dw);
+}
+
+/*
+ * Build the scatter/gather list for an I/O request according to the
+ * specifications placed in the s/g context. The caller must initialize
+ * context prior to the initial call by calling esas2r_sgc_init().
+ */
+bool esas2r_build_sg_list_sge(struct esas2r_adapter *a,
+ struct esas2r_sg_context *sgc)
+{
+ struct esas2r_request *rq = sgc->first_req;
+ union atto_vda_req *vrq = rq->vrq;
+
+ while (sgc->length) {
+ u32 rem = 0;
+ u64 addr;
+ u32 len;
+
+ len = (*sgc->get_phys_addr)(sgc, &addr);
+
+ if (unlikely(len == 0))
+ return false;
+
+ /* if current length is more than what's left, stop there */
+ if (unlikely(len > sgc->length))
+ len = sgc->length;
+
+another_entry:
+ /* limit to a round number less than the maximum length */
+ if (len > SGE_LEN_MAX) {
+ /*
+ * Save the remainder of the split. Whenever we limit
+ * an entry we come back around to build entries out
+ * of the leftover. We do this to prevent multiple
+ * calls to the get_phys_addr() function for an SGE
+ * that is too large.
+ */
+ rem = len - SGE_LEN_MAX;
+ len = SGE_LEN_MAX;
+ }
+
+ /* See if we need to allocate a new SGL */
+ if (unlikely(sgc->sge.a64.curr > sgc->sge.a64.limit)) {
+ u8 sgelen;
+ struct esas2r_mem_desc *sgl;
+
+ /*
+ * If no SGls are available, return failure. The
+ * caller can call us later with the current context
+ * to pick up here.
+ */
+ sgl = esas2r_alloc_sgl(a);
+
+ if (unlikely(sgl == NULL))
+ return false;
+
+ /* Calculate the length of the last SGE filled in */
+ sgelen = (u8)((u8 *)sgc->sge.a64.curr
+ - (u8 *)sgc->sge.a64.last);
+
+ /*
+ * Copy the last SGE filled in to the first entry of
+ * the new SGL to make room for the chain entry.
+ */
+ memcpy(sgl->virt_addr, sgc->sge.a64.last, sgelen);
+
+ /* Figure out the new curr pointer in the new segment */
+ sgc->sge.a64.curr =
+ (struct atto_vda_sge *)((u8 *)sgl->virt_addr +
+ sgelen);
+
+ /* Set the limit pointer and build the chain entry */
+ sgc->sge.a64.limit =
+ (struct atto_vda_sge *)((u8 *)sgl->virt_addr
+ + sgl_page_size
+ - sizeof(struct
+ atto_vda_sge));
+ sgc->sge.a64.last->length = cpu_to_le32(
+ SGE_CHAIN | SGE_ADDR_64);
+ sgc->sge.a64.last->address =
+ cpu_to_le64(sgl->phys_addr);
+
+ /*
+ * Now, if there was a previous chain entry, then
+ * update it to contain the length of this segment
+ * and size of this chain. otherwise this is the
+ * first SGL, so set the chain_offset in the request.
+ */
+ if (sgc->sge.a64.chain) {
+ sgc->sge.a64.chain->length |=
+ cpu_to_le32(
+ ((u8 *)(sgc->sge.a64.
+ last + 1)
+ - (u8 *)rq->sg_table->
+ virt_addr)
+ + sizeof(struct atto_vda_sge) *
+ LOBIT(SGE_CHAIN_SZ));
+ } else {
+ vrq->scsi.chain_offset = (u8)
+ ((u8 *)sgc->
+ sge.a64.last -
+ (u8 *)vrq);
+
+ /*
+ * This is the first SGL, so set the
+ * chain_offset and the VDA request size in
+ * the request.
+ */
+ rq->vda_req_sz =
+ (vrq->scsi.chain_offset +
+ sizeof(struct atto_vda_sge) +
+ 3)
+ / sizeof(u32);
+ }
+
+ /*
+ * Remember this so when we get a new SGL filled in we
+ * can update the length of this chain entry.
+ */
+ sgc->sge.a64.chain = sgc->sge.a64.last;
+
+ /* Now link the new SGL onto the primary request. */
+ list_add(&sgl->next_desc, &rq->sg_table_head);
+ }
+
+ /* Update last one filled in */
+ sgc->sge.a64.last = sgc->sge.a64.curr;
+
+ /* Build the new SGE and update the S/G context */
+ sgc->sge.a64.curr->length = cpu_to_le32(SGE_ADDR_64 | len);
+ sgc->sge.a64.curr->address = cpu_to_le32(addr);
+ sgc->sge.a64.curr++;
+ sgc->cur_offset += len;
+ sgc->length -= len;
+
+ /*
+ * Check if we previously split an entry. If so we have to
+ * pick up where we left off.
+ */
+ if (rem) {
+ addr += len;
+ len = rem;
+ rem = 0;
+ goto another_entry;
+ }
+ }
+
+ /* Mark the end of the SGL */
+ sgc->sge.a64.last->length |= cpu_to_le32(SGE_LAST);
+
+ /*
+ * If there was a previous chain entry, update the length to indicate
+ * the length of this last segment.
+ */
+ if (sgc->sge.a64.chain) {
+ sgc->sge.a64.chain->length |= cpu_to_le32(
+ ((u8 *)(sgc->sge.a64.curr) -
+ (u8 *)rq->sg_table->virt_addr));
+ } else {
+ u16 reqsize;
+
+ /*
+ * The entire VDA request was not used so lets
+ * set the size of the VDA request to be DMA'd
+ */
+ reqsize =
+ ((u16)((u8 *)sgc->sge.a64.last - (u8 *)vrq)
+ + sizeof(struct atto_vda_sge) + 3) / sizeof(u32);
+
+ /*
+ * Only update the request size if it is bigger than what is
+ * already there. We can come in here twice for some management
+ * commands.
+ */
+ if (reqsize > rq->vda_req_sz)
+ rq->vda_req_sz = reqsize;
+ }
+ return true;
+}
+
+
+/*
+ * Create PRD list for each I-block consumed by the command. This routine
+ * determines how much data is required from each I-block being consumed
+ * by the command. The first and last I-blocks can be partials and all of
+ * the I-blocks in between are for a full I-block of data.
+ *
+ * The interleave size is used to determine the number of bytes in the 1st
+ * I-block and the remaining I-blocks are what remeains.
+ */
+static bool esas2r_build_prd_iblk(struct esas2r_adapter *a,
+ struct esas2r_sg_context *sgc)
+{
+ struct esas2r_request *rq = sgc->first_req;
+ u64 addr;
+ u32 len;
+ struct esas2r_mem_desc *sgl;
+ u32 numchain = 1;
+ u32 rem = 0;
+
+ while (sgc->length) {
+ /* Get the next address/length pair */
+
+ len = (*sgc->get_phys_addr)(sgc, &addr);
+
+ if (unlikely(len == 0))
+ return false;
+
+ /* If current length is more than what's left, stop there */
+
+ if (unlikely(len > sgc->length))
+ len = sgc->length;
+
+another_entry:
+ /* Limit to a round number less than the maximum length */
+
+ if (len > PRD_LEN_MAX) {
+ /*
+ * Save the remainder of the split. whenever we limit
+ * an entry we come back around to build entries out
+ * of the leftover. We do this to prevent multiple
+ * calls to the get_phys_addr() function for an SGE
+ * that is too large.
+ */
+ rem = len - PRD_LEN_MAX;
+ len = PRD_LEN_MAX;
+ }
+
+ /* See if we need to allocate a new SGL */
+ if (sgc->sge.prd.sge_cnt == 0) {
+ if (len == sgc->length) {
+ /*
+ * We only have 1 PRD entry left.
+ * It can be placed where the chain
+ * entry would have gone
+ */
+
+ /* Build the simple SGE */
+ sgc->sge.prd.curr->ctl_len = cpu_to_le32(
+ PRD_DATA | len);
+ sgc->sge.prd.curr->address = cpu_to_le64(addr);
+
+ /* Adjust length related fields */
+ sgc->cur_offset += len;
+ sgc->length -= len;
+
+ /* We use the reserved chain entry for data */
+ numchain = 0;
+
+ break;
+ }
+
+ if (sgc->sge.prd.chain) {
+ /*
+ * Fill # of entries of current SGL in previous
+ * chain the length of this current SGL may not
+ * full.
+ */
+
+ sgc->sge.prd.chain->ctl_len |= cpu_to_le32(
+ sgc->sge.prd.sgl_max_cnt);
+ }
+
+ /*
+ * If no SGls are available, return failure. The
+ * caller can call us later with the current context
+ * to pick up here.
+ */
+
+ sgl = esas2r_alloc_sgl(a);
+
+ if (unlikely(sgl == NULL))
+ return false;
+
+ /*
+ * Link the new SGL onto the chain
+ * They are in reverse order
+ */
+ list_add(&sgl->next_desc, &rq->sg_table_head);
+
+ /*
+ * An SGL was just filled in and we are starting
+ * a new SGL. Prime the chain of the ending SGL with
+ * info that points to the new SGL. The length gets
+ * filled in when the new SGL is filled or ended
+ */
+
+ sgc->sge.prd.chain = sgc->sge.prd.curr;
+
+ sgc->sge.prd.chain->ctl_len = cpu_to_le32(PRD_CHAIN);
+ sgc->sge.prd.chain->address =
+ cpu_to_le64(sgl->phys_addr);
+
+ /*
+ * Start a new segment.
+ * Take one away and save for chain SGE
+ */
+
+ sgc->sge.prd.curr =
+ (struct atto_physical_region_description *)sgl
+ ->
+ virt_addr;
+ sgc->sge.prd.sge_cnt = sgc->sge.prd.sgl_max_cnt - 1;
+ }
+
+ sgc->sge.prd.sge_cnt--;
+ /* Build the simple SGE */
+ sgc->sge.prd.curr->ctl_len = cpu_to_le32(PRD_DATA | len);
+ sgc->sge.prd.curr->address = cpu_to_le64(addr);
+
+ /* Used another element. Point to the next one */
+
+ sgc->sge.prd.curr++;
+
+ /* Adjust length related fields */
+
+ sgc->cur_offset += len;
+ sgc->length -= len;
+
+ /*
+ * Check if we previously split an entry. If so we have to
+ * pick up where we left off.
+ */
+
+ if (rem) {
+ addr += len;
+ len = rem;
+ rem = 0;
+ goto another_entry;
+ }
+ }
+
+ if (!list_empty(&rq->sg_table_head)) {
+ if (sgc->sge.prd.chain) {
+ sgc->sge.prd.chain->ctl_len |=
+ cpu_to_le32(sgc->sge.prd.sgl_max_cnt
+ - sgc->sge.prd.sge_cnt
+ - numchain);
+ }
+ }
+
+ return true;
+}
+
+bool esas2r_build_sg_list_prd(struct esas2r_adapter *a,
+ struct esas2r_sg_context *sgc)
+{
+ struct esas2r_request *rq = sgc->first_req;
+ u32 len = sgc->length;
+ struct esas2r_target *t = a->targetdb + rq->target_id;
+ u8 is_i_o = 0;
+ u16 reqsize;
+ struct atto_physical_region_description *curr_iblk_chn;
+ u8 *cdb = (u8 *)&rq->vrq->scsi.cdb[0];
+
+ /*
+ * extract LBA from command so we can determine
+ * the I-Block boundary
+ */
+
+ if (rq->vrq->scsi.function == VDA_FUNC_SCSI
+ && t->target_state == TS_PRESENT
+ && !(t->flags & TF_PASS_THRU)) {
+ u32 lbalo = 0;
+
+ switch (rq->vrq->scsi.cdb[0]) {
+ case READ_16:
+ case WRITE_16:
+ {
+ lbalo =
+ MAKEDWORD(MAKEWORD(cdb[9],
+ cdb[8]),
+ MAKEWORD(cdb[7],
+ cdb[6]));
+ is_i_o = 1;
+ break;
+ }
+
+ case READ_12:
+ case WRITE_12:
+ case READ_10:
+ case WRITE_10:
+ {
+ lbalo =
+ MAKEDWORD(MAKEWORD(cdb[5],
+ cdb[4]),
+ MAKEWORD(cdb[3],
+ cdb[2]));
+ is_i_o = 1;
+ break;
+ }
+
+ case READ_6:
+ case WRITE_6:
+ {
+ lbalo =
+ MAKEDWORD(MAKEWORD(cdb[3],
+ cdb[2]),
+ MAKEWORD(cdb[1] & 0x1F,
+ 0));
+ is_i_o = 1;
+ break;
+ }
+
+ default:
+ break;
+ }
+
+ if (is_i_o) {
+ u32 startlba;
+
+ rq->vrq->scsi.iblk_cnt_prd = 0;
+
+ /* Determine size of 1st I-block PRD list */
+ startlba = t->inter_block - (lbalo & (t->inter_block -
+ 1));
+ sgc->length = startlba * t->block_size;
+
+ /* Chk if the 1st iblk chain starts at base of Iblock */
+ if ((lbalo & (t->inter_block - 1)) == 0)
+ rq->flags |= RF_1ST_IBLK_BASE;
+
+ if (sgc->length > len)
+ sgc->length = len;
+ } else {
+ sgc->length = len;
+ }
+ } else {
+ sgc->length = len;
+ }
+
+ /* get our starting chain address */
+
+ curr_iblk_chn =
+ (struct atto_physical_region_description *)sgc->sge.a64.curr;
+
+ sgc->sge.prd.sgl_max_cnt = sgl_page_size /
+ sizeof(struct
+ atto_physical_region_description);
+
+ /* create all of the I-block PRD lists */
+
+ while (len) {
+ sgc->sge.prd.sge_cnt = 0;
+ sgc->sge.prd.chain = NULL;
+ sgc->sge.prd.curr = curr_iblk_chn;
+
+ /* increment to next I-Block */
+
+ len -= sgc->length;
+
+ /* go build the next I-Block PRD list */
+
+ if (unlikely(!esas2r_build_prd_iblk(a, sgc)))
+ return false;
+
+ curr_iblk_chn++;
+
+ if (is_i_o) {
+ rq->vrq->scsi.iblk_cnt_prd++;
+
+ if (len > t->inter_byte)
+ sgc->length = t->inter_byte;
+ else
+ sgc->length = len;
+ }
+ }
+
+ /* figure out the size used of the VDA request */
+
+ reqsize = ((u16)((u8 *)curr_iblk_chn - (u8 *)rq->vrq))
+ / sizeof(u32);
+
+ /*
+ * only update the request size if it is bigger than what is
+ * already there. we can come in here twice for some management
+ * commands.
+ */
+
+ if (reqsize > rq->vda_req_sz)
+ rq->vda_req_sz = reqsize;
+
+ return true;
+}
+
+static void esas2r_handle_pending_reset(struct esas2r_adapter *a, u32 currtime)
+{
+ u32 delta = currtime - a->chip_init_time;
+
+ if (delta <= ESAS2R_CHPRST_WAIT_TIME) {
+ /* Wait before accessing registers */
+ } else if (delta >= ESAS2R_CHPRST_TIME) {
+ /*
+ * The last reset failed so try again. Reset
+ * processing will give up after three tries.
+ */
+ esas2r_local_reset_adapter(a);
+ } else {
+ /* We can now see if the firmware is ready */
+ u32 doorbell;
+
+ doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
+ if (doorbell == 0xFFFFFFFF || !(doorbell & DRBL_FORCE_INT)) {
+ esas2r_force_interrupt(a);
+ } else {
+ u32 ver = (doorbell & DRBL_FW_VER_MSK);
+
+ /* Driver supports API version 0 and 1 */
+ esas2r_write_register_dword(a, MU_DOORBELL_OUT,
+ doorbell);
+ if (ver == DRBL_FW_VER_0) {
+ esas2r_lock_set_flags(&a->flags,
+ AF_CHPRST_DETECTED);
+ esas2r_lock_set_flags(&a->flags,
+ AF_LEGACY_SGE_MODE);
+
+ a->max_vdareq_size = 128;
+ a->build_sgl = esas2r_build_sg_list_sge;
+ } else if (ver == DRBL_FW_VER_1) {
+ esas2r_lock_set_flags(&a->flags,
+ AF_CHPRST_DETECTED);
+ esas2r_lock_clear_flags(&a->flags,
+ AF_LEGACY_SGE_MODE);
+
+ a->max_vdareq_size = 1024;
+ a->build_sgl = esas2r_build_sg_list_prd;
+ } else {
+ esas2r_local_reset_adapter(a);
+ }
+ }
+ }
+}
+
+
+/* This function must be called once per timer tick */
+void esas2r_timer_tick(struct esas2r_adapter *a)
+{
+ u32 currtime = jiffies_to_msecs(jiffies);
+ u32 deltatime = currtime - a->last_tick_time;
+
+ a->last_tick_time = currtime;
+
+ /* count down the uptime */
+ if (a->chip_uptime
+ && !(a->flags & (AF_CHPRST_PENDING | AF_DISC_PENDING))) {
+ if (deltatime >= a->chip_uptime)
+ a->chip_uptime = 0;
+ else
+ a->chip_uptime -= deltatime;
+ }
+
+ if (a->flags & AF_CHPRST_PENDING) {
+ if (!(a->flags & AF_CHPRST_NEEDED)
+ && !(a->flags & AF_CHPRST_DETECTED))
+ esas2r_handle_pending_reset(a, currtime);
+ } else {
+ if (a->flags & AF_DISC_PENDING)
+ esas2r_disc_check_complete(a);
+
+ if (a->flags & AF_HEARTBEAT_ENB) {
+ if (a->flags & AF_HEARTBEAT) {
+ if ((currtime - a->heartbeat_time) >=
+ ESAS2R_HEARTBEAT_TIME) {
+ esas2r_lock_clear_flags(&a->flags,
+ AF_HEARTBEAT);
+ esas2r_hdebug("heartbeat failed");
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "heartbeat failed");
+ esas2r_bugon();
+ esas2r_local_reset_adapter(a);
+ }
+ } else {
+ esas2r_lock_set_flags(&a->flags, AF_HEARTBEAT);
+ a->heartbeat_time = currtime;
+ esas2r_force_interrupt(a);
+ }
+ }
+ }
+
+ if (atomic_read(&a->disable_cnt) == 0)
+ esas2r_do_deferred_processes(a);
+}
+
+/*
+ * Send the specified task management function to the target and LUN
+ * specified in rqaux. in addition, immediately abort any commands that
+ * are queued but not sent to the device according to the rules specified
+ * by the task management function.
+ */
+bool esas2r_send_task_mgmt(struct esas2r_adapter *a,
+ struct esas2r_request *rqaux, u8 task_mgt_func)
+{
+ u16 targetid = rqaux->target_id;
+ u8 lun = (u8)le32_to_cpu(rqaux->vrq->scsi.flags);
+ bool ret = false;
+ struct esas2r_request *rq;
+ struct list_head *next, *element;
+ unsigned long flags;
+
+ LIST_HEAD(comp_list);
+
+ esas2r_trace_enter();
+ esas2r_trace("rqaux:%p", rqaux);
+ esas2r_trace("task_mgt_func:%x", task_mgt_func);
+ spin_lock_irqsave(&a->queue_lock, flags);
+
+ /* search the defer queue looking for requests for the device */
+ list_for_each_safe(element, next, &a->defer_list) {
+ rq = list_entry(element, struct esas2r_request, req_list);
+
+ if (rq->vrq->scsi.function == VDA_FUNC_SCSI
+ && rq->target_id == targetid
+ && (((u8)le32_to_cpu(rq->vrq->scsi.flags)) == lun
+ || task_mgt_func == 0x20)) { /* target reset */
+ /* Found a request affected by the task management */
+ if (rq->req_stat == RS_PENDING) {
+ /*
+ * The request is pending or waiting. We can
+ * safelycomplete the request now.
+ */
+ if (esas2r_ioreq_aborted(a, rq, RS_ABORTED))
+ list_add_tail(&rq->comp_list,
+ &comp_list);
+ }
+ }
+ }
+
+ /* Send the task management request to the firmware */
+ rqaux->sense_len = 0;
+ rqaux->vrq->scsi.length = 0;
+ rqaux->target_id = targetid;
+ rqaux->vrq->scsi.flags |= cpu_to_le32(lun);
+ memset(rqaux->vrq->scsi.cdb, 0, sizeof(rqaux->vrq->scsi.cdb));
+ rqaux->vrq->scsi.flags |=
+ cpu_to_le16(task_mgt_func * LOBIT(FCP_CMND_TM_MASK));
+
+ if (a->flags & AF_FLASHING) {
+ /* Assume success. if there are active requests, return busy */
+ rqaux->req_stat = RS_SUCCESS;
+
+ list_for_each_safe(element, next, &a->active_list) {
+ rq = list_entry(element, struct esas2r_request,
+ req_list);
+ if (rq->vrq->scsi.function == VDA_FUNC_SCSI
+ && rq->target_id == targetid
+ && (((u8)le32_to_cpu(rq->vrq->scsi.flags)) == lun
+ || task_mgt_func == 0x20)) /* target reset */
+ rqaux->req_stat = RS_BUSY;
+ }
+
+ ret = true;
+ }
+
+ spin_unlock_irqrestore(&a->queue_lock, flags);
+
+ if (!(a->flags & AF_FLASHING))
+ esas2r_start_request(a, rqaux);
+
+ esas2r_comp_list_drain(a, &comp_list);
+
+ if (atomic_read(&a->disable_cnt) == 0)
+ esas2r_do_deferred_processes(a);
+
+ esas2r_trace_exit();
+
+ return ret;
+}
+
+void esas2r_reset_bus(struct esas2r_adapter *a)
+{
+ esas2r_log(ESAS2R_LOG_INFO, "performing a bus reset");
+
+ if (!(a->flags & AF_DEGRADED_MODE)
+ && !(a->flags & (AF_CHPRST_PENDING | AF_DISC_PENDING))) {
+ esas2r_lock_set_flags(&a->flags, AF_BUSRST_NEEDED);
+ esas2r_lock_set_flags(&a->flags, AF_BUSRST_PENDING);
+ esas2r_lock_set_flags(&a->flags, AF_OS_RESET);
+
+ esas2r_schedule_tasklet(a);
+ }
+}
+
+bool esas2r_ioreq_aborted(struct esas2r_adapter *a, struct esas2r_request *rq,
+ u8 status)
+{
+ esas2r_trace_enter();
+ esas2r_trace("rq:%p", rq);
+ list_del_init(&rq->req_list);
+ if (rq->timeout > RQ_MAX_TIMEOUT) {
+ /*
+ * The request timed out, but we could not abort it because a
+ * chip reset occurred. Return busy status.
+ */
+ rq->req_stat = RS_BUSY;
+ esas2r_trace_exit();
+ return true;
+ }
+
+ rq->req_stat = status;
+ esas2r_trace_exit();
+ return true;
+}
--
1.8.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v4 06/10] SCSI: esas2r: Add flash and target database functions
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
` (4 preceding siblings ...)
2013-08-23 14:35 ` [PATCH v4 05/10] SCSI: esas2r: Add interrupt and IO functions Bradley Grove
@ 2013-08-23 14:35 ` Bradley Grove
2013-08-23 14:35 ` [PATCH v4 07/10] SCSI: esas2r: Add IOCTL header file Bradley Grove
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Bradley Grove @ 2013-08-23 14:35 UTC (permalink / raw)
To: linux-scsi, jbottomley; +Cc: jseba, Bradley Grove
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
drivers/scsi/esas2r/esas2r_flash.c | 1514 +++++++++++++++++++++++++++++++++++
drivers/scsi/esas2r/esas2r_targdb.c | 306 +++++++
2 files changed, 1820 insertions(+)
create mode 100644 drivers/scsi/esas2r/esas2r_flash.c
create mode 100644 drivers/scsi/esas2r/esas2r_targdb.c
diff --git a/drivers/scsi/esas2r/esas2r_flash.c b/drivers/scsi/esas2r/esas2r_flash.c
new file mode 100644
index 0000000..a02fb62
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_flash.c
@@ -0,0 +1,1512 @@
+
+/*
+ * linux/drivers/scsi/esas2r/esas2r_flash.c
+ * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
+#include "esas2r.h"
+
+/* local macro defs */
+#define esas2r_nvramcalc_cksum(n) \
+ (esas2r_calc_byte_cksum((u8 *)(n), sizeof(struct esas2r_sas_nvram), \
+ SASNVR_CKSUM_SEED))
+#define esas2r_nvramcalc_xor_cksum(n) \
+ (esas2r_calc_byte_xor_cksum((u8 *)(n), \
+ sizeof(struct esas2r_sas_nvram), 0))
+
+#define ESAS2R_FS_DRVR_VER 2
+
+static struct esas2r_sas_nvram default_sas_nvram = {
+ { 'E', 'S', 'A', 'S' }, /* signature */
+ SASNVR_VERSION, /* version */
+ 0, /* checksum */
+ 31, /* max_lun_for_target */
+ SASNVR_PCILAT_MAX, /* pci_latency */
+ SASNVR1_BOOT_DRVR, /* options1 */
+ SASNVR2_HEARTBEAT | SASNVR2_SINGLE_BUS /* options2 */
+ | SASNVR2_SW_MUX_CTRL,
+ SASNVR_COAL_DIS, /* int_coalescing */
+ SASNVR_CMDTHR_NONE, /* cmd_throttle */
+ 3, /* dev_wait_time */
+ 1, /* dev_wait_count */
+ 0, /* spin_up_delay */
+ 0, /* ssp_align_rate */
+ { 0x50, 0x01, 0x08, 0x60, /* sas_addr */
+ 0x00, 0x00, 0x00, 0x00 },
+ { SASNVR_SPEED_AUTO }, /* phy_speed */
+ { SASNVR_MUX_DISABLED }, /* SAS multiplexing */
+ { 0 }, /* phy_flags */
+ SASNVR_SORT_SAS_ADDR, /* sort_type */
+ 3, /* dpm_reqcmd_lmt */
+ 3, /* dpm_stndby_time */
+ 0, /* dpm_active_time */
+ { 0 }, /* phy_target_id */
+ SASNVR_VSMH_DISABLED, /* virt_ses_mode */
+ SASNVR_RWM_DEFAULT, /* read_write_mode */
+ 0, /* link down timeout */
+ { 0 } /* reserved */
+};
+
+static u8 cmd_to_fls_func[] = {
+ 0xFF,
+ VDA_FLASH_READ,
+ VDA_FLASH_BEGINW,
+ VDA_FLASH_WRITE,
+ VDA_FLASH_COMMIT,
+ VDA_FLASH_CANCEL
+};
+
+static u8 esas2r_calc_byte_xor_cksum(u8 *addr, u32 len, u8 seed)
+{
+ u32 cksum = seed;
+ u8 *p = (u8 *)&cksum;
+
+ while (len) {
+ if (((uintptr_t)addr & 3) == 0)
+ break;
+
+ cksum = cksum ^ *addr;
+ addr++;
+ len--;
+ }
+ while (len >= sizeof(u32)) {
+ cksum = cksum ^ *(u32 *)addr;
+ addr += 4;
+ len -= 4;
+ }
+ while (len--) {
+ cksum = cksum ^ *addr;
+ addr++;
+ }
+ return p[0] ^ p[1] ^ p[2] ^ p[3];
+}
+
+static u8 esas2r_calc_byte_cksum(void *addr, u32 len, u8 seed)
+{
+ u8 *p = (u8 *)addr;
+ u8 cksum = seed;
+
+ while (len--)
+ cksum = cksum + p[len];
+ return cksum;
+}
+
+/* Interrupt callback to process FM API write requests. */
+static void esas2r_fmapi_callback(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct atto_vda_flash_req *vrq = &rq->vrq->flash;
+ struct esas2r_flash_context *fc =
+ (struct esas2r_flash_context *)rq->interrupt_cx;
+
+ if (rq->req_stat == RS_SUCCESS) {
+ /* Last request was successful. See what to do now. */
+ switch (vrq->sub_func) {
+ case VDA_FLASH_BEGINW:
+ if (fc->sgc.cur_offset == NULL)
+ goto commit;
+
+ vrq->sub_func = VDA_FLASH_WRITE;
+ rq->req_stat = RS_PENDING;
+ break;
+
+ case VDA_FLASH_WRITE:
+commit:
+ vrq->sub_func = VDA_FLASH_COMMIT;
+ rq->req_stat = RS_PENDING;
+ rq->interrupt_cb = fc->interrupt_cb;
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ if (rq->req_stat != RS_PENDING)
+ /*
+ * All done. call the real callback to complete the FM API
+ * request. We should only get here if a BEGINW or WRITE
+ * operation failed.
+ */
+ (*fc->interrupt_cb)(a, rq);
+}
+
+/*
+ * Build a flash request based on the flash context. The request status
+ * is filled in on an error.
+ */
+static void build_flash_msg(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_flash_context *fc =
+ (struct esas2r_flash_context *)rq->interrupt_cx;
+ struct esas2r_sg_context *sgc = &fc->sgc;
+ u8 cksum = 0;
+
+ /* calculate the checksum */
+ if (fc->func == VDA_FLASH_BEGINW) {
+ if (sgc->cur_offset)
+ cksum = esas2r_calc_byte_xor_cksum(sgc->cur_offset,
+ sgc->length,
+ 0);
+ rq->interrupt_cb = esas2r_fmapi_callback;
+ } else {
+ rq->interrupt_cb = fc->interrupt_cb;
+ }
+ esas2r_build_flash_req(a,
+ rq,
+ fc->func,
+ cksum,
+ fc->flsh_addr,
+ sgc->length);
+
+ esas2r_rq_free_sg_lists(rq, a);
+
+ /*
+ * remember the length we asked for. we have to keep track of
+ * the current amount done so we know how much to compare when
+ * doing the verification phase.
+ */
+ fc->curr_len = fc->sgc.length;
+
+ if (sgc->cur_offset) {
+ /* setup the S/G context to build the S/G table */
+ esas2r_sgc_init(sgc, a, rq, &rq->vrq->flash.data.sge[0]);
+
+ if (!esas2r_build_sg_list(a, rq, sgc)) {
+ rq->req_stat = RS_BUSY;
+ return;
+ }
+ } else {
+ fc->sgc.length = 0;
+ }
+
+ /* update the flsh_addr to the next one to write to */
+ fc->flsh_addr += fc->curr_len;
+}
+
+/* determine the method to process the flash request */
+static bool load_image(struct esas2r_adapter *a, struct esas2r_request *rq)
+{
+ /*
+ * assume we have more to do. if we return with the status set to
+ * RS_PENDING, FM API tasks will continue.
+ */
+ rq->req_stat = RS_PENDING;
+ if (a->flags & AF_DEGRADED_MODE)
+ /* not suppported for now */;
+ else
+ build_flash_msg(a, rq);
+
+ return rq->req_stat == RS_PENDING;
+}
+
+/* boot image fixer uppers called before downloading the image. */
+static void fix_bios(struct esas2r_adapter *a, struct esas2r_flash_img *fi)
+{
+ struct esas2r_component_header *ch = &fi->cmp_hdr[CH_IT_BIOS];
+ struct esas2r_pc_image *pi;
+ struct esas2r_boot_header *bh;
+
+ pi = (struct esas2r_pc_image *)((u8 *)fi + ch->image_offset);
+ bh =
+ (struct esas2r_boot_header *)((u8 *)pi +
+ le16_to_cpu(pi->header_offset));
+ bh->device_id = cpu_to_le16(a->pcid->device);
+
+ /* Recalculate the checksum in the PNP header if there */
+ if (pi->pnp_offset) {
+ u8 *pnp_header_bytes =
+ ((u8 *)pi + le16_to_cpu(pi->pnp_offset));
+
+ /* Identifier - dword that starts at byte 10 */
+ *((u32 *)&pnp_header_bytes[10]) =
+ cpu_to_le32(MAKEDWORD(a->pcid->subsystem_vendor,
+ a->pcid->subsystem_device));
+
+ /* Checksum - byte 9 */
+ pnp_header_bytes[9] -= esas2r_calc_byte_cksum(pnp_header_bytes,
+ 32, 0);
+ }
+
+ /* Recalculate the checksum needed by the PC */
+ pi->checksum = pi->checksum -
+ esas2r_calc_byte_cksum((u8 *)pi, ch->length, 0);
+}
+
+static void fix_efi(struct esas2r_adapter *a, struct esas2r_flash_img *fi)
+{
+ struct esas2r_component_header *ch = &fi->cmp_hdr[CH_IT_EFI];
+ u32 len = ch->length;
+ u32 offset = ch->image_offset;
+ struct esas2r_efi_image *ei;
+ struct esas2r_boot_header *bh;
+
+ while (len) {
+ u32 thislen;
+
+ ei = (struct esas2r_efi_image *)((u8 *)fi + offset);
+ bh = (struct esas2r_boot_header *)((u8 *)ei +
+ le16_to_cpu(
+ ei->header_offset));
+ bh->device_id = cpu_to_le16(a->pcid->device);
+ thislen = (u32)le16_to_cpu(bh->image_length) * 512;
+
+ if (thislen > len)
+ break;
+
+ len -= thislen;
+ offset += thislen;
+ }
+}
+
+/* Complete a FM API request with the specified status. */
+static bool complete_fmapi_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq, u8 fi_stat)
+{
+ struct esas2r_flash_context *fc =
+ (struct esas2r_flash_context *)rq->interrupt_cx;
+ struct esas2r_flash_img *fi = fc->fi;
+
+ fi->status = fi_stat;
+ fi->driver_error = rq->req_stat;
+ rq->interrupt_cb = NULL;
+ rq->req_stat = RS_SUCCESS;
+
+ if (fi_stat != FI_STAT_IMG_VER)
+ memset(fc->scratch, 0, FM_BUF_SZ);
+
+ esas2r_enable_heartbeat(a);
+ esas2r_lock_clear_flags(&a->flags, AF_FLASH_LOCK);
+ return false;
+}
+
+/* Process each phase of the flash download process. */
+static void fw_download_proc(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_flash_context *fc =
+ (struct esas2r_flash_context *)rq->interrupt_cx;
+ struct esas2r_flash_img *fi = fc->fi;
+ struct esas2r_component_header *ch;
+ u32 len;
+ u8 *p, *q;
+
+ /* If the previous operation failed, just return. */
+ if (rq->req_stat != RS_SUCCESS)
+ goto error;
+
+ /*
+ * If an upload just completed and the compare length is non-zero,
+ * then we just read back part of the image we just wrote. verify the
+ * section and continue reading until the entire image is verified.
+ */
+ if (fc->func == VDA_FLASH_READ
+ && fc->cmp_len) {
+ ch = &fi->cmp_hdr[fc->comp_typ];
+
+ p = fc->scratch;
+ q = (u8 *)fi /* start of the whole gob */
+ + ch->image_offset /* start of the current image */
+ + ch->length /* end of the current image */
+ - fc->cmp_len; /* where we are now */
+
+ /*
+ * NOTE - curr_len is the exact count of bytes for the read
+ * even when the end is read and its not a full buffer
+ */
+ for (len = fc->curr_len; len; len--)
+ if (*p++ != *q++)
+ goto error;
+
+ fc->cmp_len -= fc->curr_len; /* # left to compare */
+
+ /* Update fc and determine the length for the next upload */
+ if (fc->cmp_len > FM_BUF_SZ)
+ fc->sgc.length = FM_BUF_SZ;
+ else
+ fc->sgc.length = fc->cmp_len;
+
+ fc->sgc.cur_offset = fc->sgc_offset +
+ ((u8 *)fc->scratch - (u8 *)fi);
+ }
+
+ /*
+ * This code uses a 'while' statement since the next component may
+ * have a length = zero. This can happen since some components are
+ * not required. At the end of this 'while' we set up the length
+ * for the next request and therefore sgc.length can be = 0.
+ */
+ while (fc->sgc.length == 0) {
+ ch = &fi->cmp_hdr[fc->comp_typ];
+
+ switch (fc->task) {
+ case FMTSK_ERASE_BOOT:
+ /* the BIOS image is written next */
+ ch = &fi->cmp_hdr[CH_IT_BIOS];
+ if (ch->length == 0)
+ goto no_bios;
+
+ fc->task = FMTSK_WRTBIOS;
+ fc->func = VDA_FLASH_BEGINW;
+ fc->comp_typ = CH_IT_BIOS;
+ fc->flsh_addr = FLS_OFFSET_BOOT;
+ fc->sgc.length = ch->length;
+ fc->sgc.cur_offset = fc->sgc_offset +
+ ch->image_offset;
+ break;
+
+ case FMTSK_WRTBIOS:
+ /*
+ * The BIOS image has been written - read it and
+ * verify it
+ */
+ fc->task = FMTSK_READBIOS;
+ fc->func = VDA_FLASH_READ;
+ fc->flsh_addr = FLS_OFFSET_BOOT;
+ fc->cmp_len = ch->length;
+ fc->sgc.length = FM_BUF_SZ;
+ fc->sgc.cur_offset = fc->sgc_offset
+ + ((u8 *)fc->scratch -
+ (u8 *)fi);
+ break;
+
+ case FMTSK_READBIOS:
+no_bios:
+ /*
+ * Mark the component header status for the image
+ * completed
+ */
+ ch->status = CH_STAT_SUCCESS;
+
+ /* The MAC image is written next */
+ ch = &fi->cmp_hdr[CH_IT_MAC];
+ if (ch->length == 0)
+ goto no_mac;
+
+ fc->task = FMTSK_WRTMAC;
+ fc->func = VDA_FLASH_BEGINW;
+ fc->comp_typ = CH_IT_MAC;
+ fc->flsh_addr = FLS_OFFSET_BOOT
+ + fi->cmp_hdr[CH_IT_BIOS].length;
+ fc->sgc.length = ch->length;
+ fc->sgc.cur_offset = fc->sgc_offset +
+ ch->image_offset;
+ break;
+
+ case FMTSK_WRTMAC:
+ /* The MAC image has been written - read and verify */
+ fc->task = FMTSK_READMAC;
+ fc->func = VDA_FLASH_READ;
+ fc->flsh_addr -= ch->length;
+ fc->cmp_len = ch->length;
+ fc->sgc.length = FM_BUF_SZ;
+ fc->sgc.cur_offset = fc->sgc_offset
+ + ((u8 *)fc->scratch -
+ (u8 *)fi);
+ break;
+
+ case FMTSK_READMAC:
+no_mac:
+ /*
+ * Mark the component header status for the image
+ * completed
+ */
+ ch->status = CH_STAT_SUCCESS;
+
+ /* The EFI image is written next */
+ ch = &fi->cmp_hdr[CH_IT_EFI];
+ if (ch->length == 0)
+ goto no_efi;
+
+ fc->task = FMTSK_WRTEFI;
+ fc->func = VDA_FLASH_BEGINW;
+ fc->comp_typ = CH_IT_EFI;
+ fc->flsh_addr = FLS_OFFSET_BOOT
+ + fi->cmp_hdr[CH_IT_BIOS].length
+ + fi->cmp_hdr[CH_IT_MAC].length;
+ fc->sgc.length = ch->length;
+ fc->sgc.cur_offset = fc->sgc_offset +
+ ch->image_offset;
+ break;
+
+ case FMTSK_WRTEFI:
+ /* The EFI image has been written - read and verify */
+ fc->task = FMTSK_READEFI;
+ fc->func = VDA_FLASH_READ;
+ fc->flsh_addr -= ch->length;
+ fc->cmp_len = ch->length;
+ fc->sgc.length = FM_BUF_SZ;
+ fc->sgc.cur_offset = fc->sgc_offset
+ + ((u8 *)fc->scratch -
+ (u8 *)fi);
+ break;
+
+ case FMTSK_READEFI:
+no_efi:
+ /*
+ * Mark the component header status for the image
+ * completed
+ */
+ ch->status = CH_STAT_SUCCESS;
+
+ /* The CFG image is written next */
+ ch = &fi->cmp_hdr[CH_IT_CFG];
+
+ if (ch->length == 0)
+ goto no_cfg;
+ fc->task = FMTSK_WRTCFG;
+ fc->func = VDA_FLASH_BEGINW;
+ fc->comp_typ = CH_IT_CFG;
+ fc->flsh_addr = FLS_OFFSET_CPYR - ch->length;
+ fc->sgc.length = ch->length;
+ fc->sgc.cur_offset = fc->sgc_offset +
+ ch->image_offset;
+ break;
+
+ case FMTSK_WRTCFG:
+ /* The CFG image has been written - read and verify */
+ fc->task = FMTSK_READCFG;
+ fc->func = VDA_FLASH_READ;
+ fc->flsh_addr = FLS_OFFSET_CPYR - ch->length;
+ fc->cmp_len = ch->length;
+ fc->sgc.length = FM_BUF_SZ;
+ fc->sgc.cur_offset = fc->sgc_offset
+ + ((u8 *)fc->scratch -
+ (u8 *)fi);
+ break;
+
+ case FMTSK_READCFG:
+no_cfg:
+ /*
+ * Mark the component header status for the image
+ * completed
+ */
+ ch->status = CH_STAT_SUCCESS;
+
+ /*
+ * The download is complete. If in degraded mode,
+ * attempt a chip reset.
+ */
+ if (a->flags & AF_DEGRADED_MODE)
+ esas2r_local_reset_adapter(a);
+
+ a->flash_ver = fi->cmp_hdr[CH_IT_BIOS].version;
+ esas2r_print_flash_rev(a);
+
+ /* Update the type of boot image on the card */
+ memcpy(a->image_type, fi->rel_version,
+ sizeof(fi->rel_version));
+ complete_fmapi_req(a, rq, FI_STAT_SUCCESS);
+ return;
+ }
+
+ /* If verifying, don't try reading more than what's there */
+ if (fc->func == VDA_FLASH_READ
+ && fc->sgc.length > fc->cmp_len)
+ fc->sgc.length = fc->cmp_len;
+ }
+
+ /* Build the request to perform the next action */
+ if (!load_image(a, rq)) {
+error:
+ if (fc->comp_typ < fi->num_comps) {
+ ch = &fi->cmp_hdr[fc->comp_typ];
+ ch->status = CH_STAT_FAILED;
+ }
+
+ complete_fmapi_req(a, rq, FI_STAT_FAILED);
+ }
+}
+
+/* Determine the flash image adaptyp for this adapter */
+static u8 get_fi_adap_type(struct esas2r_adapter *a)
+{
+ u8 type;
+
+ /* use the device ID to get the correct adap_typ for this HBA */
+ switch (a->pcid->device) {
+ case ATTO_DID_INTEL_IOP348:
+ type = FI_AT_SUN_LAKE;
+ break;
+
+ case ATTO_DID_MV_88RC9580:
+ case ATTO_DID_MV_88RC9580TS:
+ case ATTO_DID_MV_88RC9580TSE:
+ case ATTO_DID_MV_88RC9580TL:
+ type = FI_AT_MV_9580;
+ break;
+
+ default:
+ type = FI_AT_UNKNWN;
+ break;
+ }
+
+ return type;
+}
+
+/* Size of config + copyright + flash_ver images, 0 for failure. */
+static u32 chk_cfg(u8 *cfg, u32 length, u32 *flash_ver)
+{
+ u16 *pw = (u16 *)cfg - 1;
+ u32 sz = 0;
+ u32 len = length;
+
+ if (len == 0)
+ len = FM_BUF_SZ;
+
+ if (flash_ver)
+ *flash_ver = 0;
+
+ while (true) {
+ u16 type;
+ u16 size;
+
+ type = le16_to_cpu(*pw--);
+ size = le16_to_cpu(*pw--);
+
+ if (type != FBT_CPYR
+ && type != FBT_SETUP
+ && type != FBT_FLASH_VER)
+ break;
+
+ if (type == FBT_FLASH_VER
+ && flash_ver)
+ *flash_ver = le32_to_cpu(*(u32 *)(pw - 1));
+
+ sz += size + (2 * sizeof(u16));
+ pw -= size / sizeof(u16);
+
+ if (sz > len - (2 * sizeof(u16)))
+ break;
+ }
+
+ /* See if we are comparing the size to the specified length */
+ if (length && sz != length)
+ return 0;
+
+ return sz;
+}
+
+/* Verify that the boot image is valid */
+static u8 chk_boot(u8 *boot_img, u32 length)
+{
+ struct esas2r_boot_image *bi = (struct esas2r_boot_image *)boot_img;
+ u16 hdroffset = le16_to_cpu(bi->header_offset);
+ struct esas2r_boot_header *bh;
+
+ if (bi->signature != le16_to_cpu(0xaa55)
+ || (long)hdroffset >
+ (long)(65536L - sizeof(struct esas2r_boot_header))
+ || (hdroffset & 3)
+ || (hdroffset < sizeof(struct esas2r_boot_image))
+ || ((u32)hdroffset + sizeof(struct esas2r_boot_header) > length))
+ return 0xff;
+
+ bh = (struct esas2r_boot_header *)((char *)bi + hdroffset);
+
+ if (bh->signature[0] != 'P'
+ || bh->signature[1] != 'C'
+ || bh->signature[2] != 'I'
+ || bh->signature[3] != 'R'
+ || le16_to_cpu(bh->struct_length) <
+ (u16)sizeof(struct esas2r_boot_header)
+ || bh->class_code[2] != 0x01
+ || bh->class_code[1] != 0x04
+ || bh->class_code[0] != 0x00
+ || (bh->code_type != CODE_TYPE_PC
+ && bh->code_type != CODE_TYPE_OPEN
+ && bh->code_type != CODE_TYPE_EFI))
+ return 0xff;
+
+ return bh->code_type;
+}
+
+/* The sum of all the WORDS of the image */
+static u16 calc_fi_checksum(struct esas2r_flash_context *fc)
+{
+ struct esas2r_flash_img *fi = fc->fi;
+ u16 cksum;
+ u32 len;
+ u16 *pw;
+
+ for (len = (fi->length - fc->fi_hdr_len) / 2,
+ pw = (u16 *)((u8 *)fi + fc->fi_hdr_len),
+ cksum = 0;
+ len;
+ len--, pw++)
+ cksum = cksum + le16_to_cpu(*pw);
+
+ return cksum;
+}
+
+/*
+ * Verify the flash image structure. The following verifications will
+ * be performed:
+ * 1) verify the fi_version is correct
+ * 2) verify the checksum of the entire image.
+ * 3) validate the adap_typ, action and length fields.
+ * 4) valdiate each component header. check the img_type and
+ * length fields
+ * 5) valdiate each component image. validate signatures and
+ * local checksums
+ */
+static bool verify_fi(struct esas2r_adapter *a,
+ struct esas2r_flash_context *fc)
+{
+ struct esas2r_flash_img *fi = fc->fi;
+ u8 type;
+ bool imgerr;
+ u16 i;
+ u32 len;
+ struct esas2r_component_header *ch;
+
+ /* Verify the length - length must even since we do a word checksum */
+ len = fi->length;
+
+ if ((len & 1)
+ || len < fc->fi_hdr_len) {
+ fi->status = FI_STAT_LENGTH;
+ return false;
+ }
+
+ /* Get adapter type and verify type in flash image */
+ type = get_fi_adap_type(a);
+ if ((type == FI_AT_UNKNWN) || (fi->adap_typ != type)) {
+ fi->status = FI_STAT_ADAPTYP;
+ return false;
+ }
+
+ /*
+ * Loop through each component and verify the img_type and length
+ * fields. Keep a running count of the sizes sooze we can verify total
+ * size to additive size.
+ */
+ imgerr = false;
+
+ for (i = 0, len = 0, ch = fi->cmp_hdr;
+ i < fi->num_comps;
+ i++, ch++) {
+ bool cmperr = false;
+
+ /*
+ * Verify that the component header has the same index as the
+ * image type. The headers must be ordered correctly
+ */
+ if (i != ch->img_type) {
+ imgerr = true;
+ ch->status = CH_STAT_INVALID;
+ continue;
+ }
+
+ switch (ch->img_type) {
+ case CH_IT_BIOS:
+ type = CODE_TYPE_PC;
+ break;
+
+ case CH_IT_MAC:
+ type = CODE_TYPE_OPEN;
+ break;
+
+ case CH_IT_EFI:
+ type = CODE_TYPE_EFI;
+ break;
+ }
+
+ switch (ch->img_type) {
+ case CH_IT_FW:
+ case CH_IT_NVR:
+ break;
+
+ case CH_IT_BIOS:
+ case CH_IT_MAC:
+ case CH_IT_EFI:
+ if (ch->length & 0x1ff)
+ cmperr = true;
+
+ /* Test if component image is present */
+ if (ch->length == 0)
+ break;
+
+ /* Image is present - verify the image */
+ if (chk_boot((u8 *)fi + ch->image_offset, ch->length)
+ != type)
+ cmperr = true;
+
+ break;
+
+ case CH_IT_CFG:
+
+ /* Test if component image is present */
+ if (ch->length == 0) {
+ cmperr = true;
+ break;
+ }
+
+ /* Image is present - verify the image */
+ if (!chk_cfg((u8 *)fi + ch->image_offset + ch->length,
+ ch->length, NULL))
+ cmperr = true;
+
+ break;
+
+ default:
+
+ fi->status = FI_STAT_UNKNOWN;
+ return false;
+ }
+
+ if (cmperr) {
+ imgerr = true;
+ ch->status = CH_STAT_INVALID;
+ } else {
+ ch->status = CH_STAT_PENDING;
+ len += ch->length;
+ }
+ }
+
+ if (imgerr) {
+ fi->status = FI_STAT_MISSING;
+ return false;
+ }
+
+ /* Compare fi->length to the sum of ch->length fields */
+ if (len != fi->length - fc->fi_hdr_len) {
+ fi->status = FI_STAT_LENGTH;
+ return false;
+ }
+
+ /* Compute the checksum - it should come out zero */
+ if (fi->checksum != calc_fi_checksum(fc)) {
+ fi->status = FI_STAT_CHKSUM;
+ return false;
+ }
+
+ return true;
+}
+
+/* Fill in the FS IOCTL response data from a completed request. */
+static void esas2r_complete_fs_ioctl(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct esas2r_ioctl_fs *fs =
+ (struct esas2r_ioctl_fs *)rq->interrupt_cx;
+
+ if (rq->vrq->flash.sub_func == VDA_FLASH_COMMIT)
+ esas2r_enable_heartbeat(a);
+
+ fs->driver_error = rq->req_stat;
+
+ if (fs->driver_error == RS_SUCCESS)
+ fs->status = ATTO_STS_SUCCESS;
+ else
+ fs->status = ATTO_STS_FAILED;
+}
+
+/* Prepare an FS IOCTL request to be sent to the firmware. */
+bool esas2r_process_fs_ioctl(struct esas2r_adapter *a,
+ struct esas2r_ioctl_fs *fs,
+ struct esas2r_request *rq,
+ struct esas2r_sg_context *sgc)
+{
+ u8 cmdcnt = (u8)ARRAY_SIZE(cmd_to_fls_func);
+ struct esas2r_ioctlfs_command *fsc = &fs->command;
+ u8 func = 0;
+ u32 datalen;
+
+ fs->status = ATTO_STS_FAILED;
+ fs->driver_error = RS_PENDING;
+
+ if (fs->version > ESAS2R_FS_VER) {
+ fs->status = ATTO_STS_INV_VERSION;
+ return false;
+ }
+
+ func = cmd_to_fls_func[fsc->command];
+ if (fsc->command >= cmdcnt || func == 0xFF) {
+ fs->status = ATTO_STS_INV_FUNC;
+ return false;
+ }
+
+ if (fsc->command != ESAS2R_FS_CMD_CANCEL) {
+ if ((a->pcid->device != ATTO_DID_MV_88RC9580
+ || fs->adap_type != ESAS2R_FS_AT_ESASRAID2)
+ && (a->pcid->device != ATTO_DID_MV_88RC9580TS
+ || fs->adap_type != ESAS2R_FS_AT_TSSASRAID2)
+ && (a->pcid->device != ATTO_DID_MV_88RC9580TSE
+ || fs->adap_type != ESAS2R_FS_AT_TSSASRAID2E)
+ && (a->pcid->device != ATTO_DID_MV_88RC9580TL
+ || fs->adap_type != ESAS2R_FS_AT_TLSASHBA)) {
+ fs->status = ATTO_STS_INV_ADAPTER;
+ return false;
+ }
+
+ if (fs->driver_ver > ESAS2R_FS_DRVR_VER) {
+ fs->status = ATTO_STS_INV_DRVR_VER;
+ return false;
+ }
+ }
+
+ if (a->flags & AF_DEGRADED_MODE) {
+ fs->status = ATTO_STS_DEGRADED;
+ return false;
+ }
+
+ rq->interrupt_cb = esas2r_complete_fs_ioctl;
+ rq->interrupt_cx = fs;
+ datalen = le32_to_cpu(fsc->length);
+ esas2r_build_flash_req(a,
+ rq,
+ func,
+ fsc->checksum,
+ le32_to_cpu(fsc->flash_addr),
+ datalen);
+
+ if (func == VDA_FLASH_WRITE
+ || func == VDA_FLASH_READ) {
+ if (datalen == 0) {
+ fs->status = ATTO_STS_INV_FUNC;
+ return false;
+ }
+
+ esas2r_sgc_init(sgc, a, rq, rq->vrq->flash.data.sge);
+ sgc->length = datalen;
+
+ if (!esas2r_build_sg_list(a, rq, sgc)) {
+ fs->status = ATTO_STS_OUT_OF_RSRC;
+ return false;
+ }
+ }
+
+ if (func == VDA_FLASH_COMMIT)
+ esas2r_disable_heartbeat(a);
+
+ esas2r_start_request(a, rq);
+
+ return true;
+}
+
+static bool esas2r_flash_access(struct esas2r_adapter *a, u32 function)
+{
+ u32 starttime;
+ u32 timeout;
+ u32 intstat;
+ u32 doorbell;
+
+ /* Disable chip interrupts awhile */
+ if (function == DRBL_FLASH_REQ)
+ esas2r_disable_chip_interrupts(a);
+
+ /* Issue the request to the firmware */
+ esas2r_write_register_dword(a, MU_DOORBELL_IN, function);
+
+ /* Now wait for the firmware to process it */
+ starttime = jiffies_to_msecs(jiffies);
+ timeout = a->flags &
+ (AF_CHPRST_PENDING | AF_DISC_PENDING) ? 40000 : 5000;
+
+ while (true) {
+ intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
+
+ if (intstat & MU_INTSTAT_DRBL) {
+ /* Got a doorbell interrupt. Check for the function */
+ doorbell =
+ esas2r_read_register_dword(a, MU_DOORBELL_OUT);
+ esas2r_write_register_dword(a, MU_DOORBELL_OUT,
+ doorbell);
+ if (doorbell & function)
+ break;
+ }
+
+ schedule_timeout_interruptible(msecs_to_jiffies(100));
+
+ if ((jiffies_to_msecs(jiffies) - starttime) > timeout) {
+ /*
+ * Iimeout. If we were requesting flash access,
+ * indicate we are done so the firmware knows we gave
+ * up. If this was a REQ, we also need to re-enable
+ * chip interrupts.
+ */
+ if (function == DRBL_FLASH_REQ) {
+ esas2r_hdebug("flash access timeout");
+ esas2r_write_register_dword(a, MU_DOORBELL_IN,
+ DRBL_FLASH_DONE);
+ esas2r_enable_chip_interrupts(a);
+ } else {
+ esas2r_hdebug("flash release timeout");
+ }
+
+ return false;
+ }
+ }
+
+ /* if we're done, re-enable chip interrupts */
+ if (function == DRBL_FLASH_DONE)
+ esas2r_enable_chip_interrupts(a);
+
+ return true;
+}
+
+#define WINDOW_SIZE ((signed int)MW_DATA_WINDOW_SIZE)
+
+bool esas2r_read_flash_block(struct esas2r_adapter *a,
+ void *to,
+ u32 from,
+ u32 size)
+{
+ u8 *end = (u8 *)to;
+
+ /* Try to acquire access to the flash */
+ if (!esas2r_flash_access(a, DRBL_FLASH_REQ))
+ return false;
+
+ while (size) {
+ u32 len;
+ u32 offset;
+ u32 iatvr;
+
+ if (a->flags2 & AF2_SERIAL_FLASH)
+ iatvr = MW_DATA_ADDR_SER_FLASH + (from & -WINDOW_SIZE);
+ else
+ iatvr = MW_DATA_ADDR_PAR_FLASH + (from & -WINDOW_SIZE);
+
+ esas2r_map_data_window(a, iatvr);
+ offset = from & (WINDOW_SIZE - 1);
+ len = size;
+
+ if (len > WINDOW_SIZE - offset)
+ len = WINDOW_SIZE - offset;
+
+ from += len;
+ size -= len;
+
+ while (len--) {
+ *end++ = esas2r_read_data_byte(a, offset);
+ offset++;
+ }
+ }
+
+ /* Release flash access */
+ esas2r_flash_access(a, DRBL_FLASH_DONE);
+ return true;
+}
+
+bool esas2r_read_flash_rev(struct esas2r_adapter *a)
+{
+ u8 bytes[256];
+ u16 *pw;
+ u16 *pwstart;
+ u16 type;
+ u16 size;
+ u32 sz;
+
+ sz = sizeof(bytes);
+ pw = (u16 *)(bytes + sz);
+ pwstart = (u16 *)bytes + 2;
+
+ if (!esas2r_read_flash_block(a, bytes, FLS_OFFSET_CPYR - sz, sz))
+ goto invalid_rev;
+
+ while (pw >= pwstart) {
+ pw--;
+ type = le16_to_cpu(*pw);
+ pw--;
+ size = le16_to_cpu(*pw);
+ pw -= size / 2;
+
+ if (type == FBT_CPYR
+ || type == FBT_SETUP
+ || pw < pwstart)
+ continue;
+
+ if (type == FBT_FLASH_VER)
+ a->flash_ver = le32_to_cpu(*(u32 *)pw);
+
+ break;
+ }
+
+invalid_rev:
+ return esas2r_print_flash_rev(a);
+}
+
+bool esas2r_print_flash_rev(struct esas2r_adapter *a)
+{
+ u16 year = LOWORD(a->flash_ver);
+ u8 day = LOBYTE(HIWORD(a->flash_ver));
+ u8 month = HIBYTE(HIWORD(a->flash_ver));
+
+ if (day == 0
+ || month == 0
+ || day > 31
+ || month > 12
+ || year < 2006
+ || year > 9999) {
+ strcpy(a->flash_rev, "not found");
+ a->flash_ver = 0;
+ return false;
+ }
+
+ sprintf(a->flash_rev, "%02d/%02d/%04d", month, day, year);
+ esas2r_hdebug("flash version: %s", a->flash_rev);
+ return true;
+}
+
+/*
+ * Find the type of boot image type that is currently in the flash.
+ * The chip only has a 64 KB PCI-e expansion ROM
+ * size so only one image can be flashed at a time.
+ */
+bool esas2r_read_image_type(struct esas2r_adapter *a)
+{
+ u8 bytes[256];
+ struct esas2r_boot_image *bi;
+ struct esas2r_boot_header *bh;
+ u32 sz;
+ u32 len;
+ u32 offset;
+
+ /* Start at the base of the boot images and look for a valid image */
+ sz = sizeof(bytes);
+ len = FLS_LENGTH_BOOT;
+ offset = 0;
+
+ while (true) {
+ if (!esas2r_read_flash_block(a, bytes, FLS_OFFSET_BOOT +
+ offset,
+ sz))
+ goto invalid_rev;
+
+ bi = (struct esas2r_boot_image *)bytes;
+ bh = (struct esas2r_boot_header *)((u8 *)bi +
+ le16_to_cpu(
+ bi->header_offset));
+ if (bi->signature != cpu_to_le16(0xAA55))
+ goto invalid_rev;
+
+ if (bh->code_type == CODE_TYPE_PC) {
+ strcpy(a->image_type, "BIOS");
+
+ return true;
+ } else if (bh->code_type == CODE_TYPE_EFI) {
+ struct esas2r_efi_image *ei;
+
+ /*
+ * So we have an EFI image. There are several types
+ * so see which architecture we have.
+ */
+ ei = (struct esas2r_efi_image *)bytes;
+
+ switch (le16_to_cpu(ei->machine_type)) {
+ case EFI_MACHINE_IA32:
+ strcpy(a->image_type, "EFI 32-bit");
+ return true;
+
+ case EFI_MACHINE_IA64:
+ strcpy(a->image_type, "EFI itanium");
+ return true;
+
+ case EFI_MACHINE_X64:
+ strcpy(a->image_type, "EFI 64-bit");
+ return true;
+
+ case EFI_MACHINE_EBC:
+ strcpy(a->image_type, "EFI EBC");
+ return true;
+
+ default:
+ goto invalid_rev;
+ }
+ } else {
+ u32 thislen;
+
+ /* jump to the next image */
+ thislen = (u32)le16_to_cpu(bh->image_length) * 512;
+ if (thislen == 0
+ || thislen + offset > len
+ || bh->indicator == INDICATOR_LAST)
+ break;
+
+ offset += thislen;
+ }
+ }
+
+invalid_rev:
+ strcpy(a->image_type, "no boot images");
+ return false;
+}
+
+/*
+ * Read and validate current NVRAM parameters by accessing
+ * physical NVRAM directly. if currently stored parameters are
+ * invalid, use the defaults.
+ */
+bool esas2r_nvram_read_direct(struct esas2r_adapter *a)
+{
+ bool result;
+
+ if (down_interruptible(&a->nvram_semaphore))
+ return false;
+
+ if (!esas2r_read_flash_block(a, a->nvram, FLS_OFFSET_NVR,
+ sizeof(struct esas2r_sas_nvram))) {
+ esas2r_hdebug("NVRAM read failed, using defaults");
+ return false;
+ }
+
+ result = esas2r_nvram_validate(a);
+
+ up(&a->nvram_semaphore);
+
+ return result;
+}
+
+/* Interrupt callback to process NVRAM completions. */
+static void esas2r_nvram_callback(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct atto_vda_flash_req *vrq = &rq->vrq->flash;
+
+ if (rq->req_stat == RS_SUCCESS) {
+ /* last request was successful. see what to do now. */
+
+ switch (vrq->sub_func) {
+ case VDA_FLASH_BEGINW:
+ vrq->sub_func = VDA_FLASH_WRITE;
+ rq->req_stat = RS_PENDING;
+ break;
+
+ case VDA_FLASH_WRITE:
+ vrq->sub_func = VDA_FLASH_COMMIT;
+ rq->req_stat = RS_PENDING;
+ break;
+
+ case VDA_FLASH_READ:
+ esas2r_nvram_validate(a);
+ break;
+
+ case VDA_FLASH_COMMIT:
+ default:
+ break;
+ }
+ }
+
+ if (rq->req_stat != RS_PENDING) {
+ /* update the NVRAM state */
+ if (rq->req_stat == RS_SUCCESS)
+ esas2r_lock_set_flags(&a->flags, AF_NVR_VALID);
+ else
+ esas2r_lock_clear_flags(&a->flags, AF_NVR_VALID);
+
+ esas2r_enable_heartbeat(a);
+
+ up(&a->nvram_semaphore);
+ }
+}
+
+/*
+ * Write the contents of nvram to the adapter's physical NVRAM.
+ * The cached copy of the NVRAM is also updated.
+ */
+bool esas2r_nvram_write(struct esas2r_adapter *a, struct esas2r_request *rq,
+ struct esas2r_sas_nvram *nvram)
+{
+ struct esas2r_sas_nvram *n = nvram;
+ u8 sas_address_bytes[8];
+ u32 *sas_address_dwords = (u32 *)&sas_address_bytes[0];
+ struct atto_vda_flash_req *vrq = &rq->vrq->flash;
+
+ if (a->flags & AF_DEGRADED_MODE)
+ return false;
+
+ if (down_interruptible(&a->nvram_semaphore))
+ return false;
+
+ if (n == NULL)
+ n = a->nvram;
+
+ /* check the validity of the settings */
+ if (n->version > SASNVR_VERSION) {
+ up(&a->nvram_semaphore);
+ return false;
+ }
+
+ memcpy(&sas_address_bytes[0], n->sas_addr, 8);
+
+ if (sas_address_bytes[0] != 0x50
+ || sas_address_bytes[1] != 0x01
+ || sas_address_bytes[2] != 0x08
+ || (sas_address_bytes[3] & 0xF0) != 0x60
+ || ((sas_address_bytes[3] & 0x0F) | sas_address_dwords[1]) == 0) {
+ up(&a->nvram_semaphore);
+ return false;
+ }
+
+ if (n->spin_up_delay > SASNVR_SPINUP_MAX)
+ n->spin_up_delay = SASNVR_SPINUP_MAX;
+
+ n->version = SASNVR_VERSION;
+ n->checksum = n->checksum - esas2r_nvramcalc_cksum(n);
+ memcpy(a->nvram, n, sizeof(struct esas2r_sas_nvram));
+
+ /* write the NVRAM */
+ n = a->nvram;
+ esas2r_disable_heartbeat(a);
+
+ esas2r_build_flash_req(a,
+ rq,
+ VDA_FLASH_BEGINW,
+ esas2r_nvramcalc_xor_cksum(n),
+ FLS_OFFSET_NVR,
+ sizeof(struct esas2r_sas_nvram));
+
+ if (a->flags & AF_LEGACY_SGE_MODE) {
+
+ vrq->data.sge[0].length =
+ cpu_to_le32(SGE_LAST |
+ sizeof(struct esas2r_sas_nvram));
+ vrq->data.sge[0].address = cpu_to_le64(
+ a->uncached_phys + (u64)((u8 *)n - a->uncached));
+ } else {
+ vrq->data.prde[0].ctl_len =
+ cpu_to_le32(sizeof(struct esas2r_sas_nvram));
+ vrq->data.prde[0].address = cpu_to_le64(
+ a->uncached_phys
+ + (u64)((u8 *)n - a->uncached));
+ }
+ rq->interrupt_cb = esas2r_nvram_callback;
+ esas2r_start_request(a, rq);
+ return true;
+}
+
+/* Validate the cached NVRAM. if the NVRAM is invalid, load the defaults. */
+bool esas2r_nvram_validate(struct esas2r_adapter *a)
+{
+ struct esas2r_sas_nvram *n = a->nvram;
+ bool rslt = false;
+
+ if (n->signature[0] != 'E'
+ || n->signature[1] != 'S'
+ || n->signature[2] != 'A'
+ || n->signature[3] != 'S') {
+ esas2r_hdebug("invalid NVRAM signature");
+ } else if (esas2r_nvramcalc_cksum(n)) {
+ esas2r_hdebug("invalid NVRAM checksum");
+ } else if (n->version > SASNVR_VERSION) {
+ esas2r_hdebug("invalid NVRAM version");
+ } else {
+ esas2r_lock_set_flags(&a->flags, AF_NVR_VALID);
+ rslt = true;
+ }
+
+ if (rslt == false) {
+ esas2r_hdebug("using defaults");
+ esas2r_nvram_set_defaults(a);
+ }
+
+ return rslt;
+}
+
+/*
+ * Set the cached NVRAM to defaults. note that this function sets the default
+ * NVRAM when it has been determined that the physical NVRAM is invalid.
+ * In this case, the SAS address is fabricated.
+ */
+void esas2r_nvram_set_defaults(struct esas2r_adapter *a)
+{
+ struct esas2r_sas_nvram *n = a->nvram;
+ u32 time = jiffies_to_msecs(jiffies);
+
+ esas2r_lock_clear_flags(&a->flags, AF_NVR_VALID);
+ memcpy(n, &default_sas_nvram, sizeof(struct esas2r_sas_nvram));
+ n->sas_addr[3] |= 0x0F;
+ n->sas_addr[4] = HIBYTE(LOWORD(time));
+ n->sas_addr[5] = LOBYTE(LOWORD(time));
+ n->sas_addr[6] = a->pcid->bus->number;
+ n->sas_addr[7] = a->pcid->devfn;
+}
+
+void esas2r_nvram_get_defaults(struct esas2r_adapter *a,
+ struct esas2r_sas_nvram *nvram)
+{
+ u8 sas_addr[8];
+
+ /*
+ * in case we are copying the defaults into the adapter, copy the SAS
+ * address out first.
+ */
+ memcpy(&sas_addr[0], a->nvram->sas_addr, 8);
+ memcpy(nvram, &default_sas_nvram, sizeof(struct esas2r_sas_nvram));
+ memcpy(&nvram->sas_addr[0], &sas_addr[0], 8);
+}
+
+bool esas2r_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi,
+ struct esas2r_request *rq, struct esas2r_sg_context *sgc)
+{
+ struct esas2r_flash_context *fc = &a->flash_context;
+ u8 j;
+ struct esas2r_component_header *ch;
+
+ if (esas2r_lock_set_flags(&a->flags, AF_FLASH_LOCK) & AF_FLASH_LOCK) {
+ /* flag was already set */
+ fi->status = FI_STAT_BUSY;
+ return false;
+ }
+
+ memcpy(&fc->sgc, sgc, sizeof(struct esas2r_sg_context));
+ sgc = &fc->sgc;
+ fc->fi = fi;
+ fc->sgc_offset = sgc->cur_offset;
+ rq->req_stat = RS_SUCCESS;
+ rq->interrupt_cx = fc;
+
+ switch (fi->fi_version) {
+ case FI_VERSION_1:
+ fc->scratch = ((struct esas2r_flash_img *)fi)->scratch_buf;
+ fc->num_comps = FI_NUM_COMPS_V1;
+ fc->fi_hdr_len = sizeof(struct esas2r_flash_img);
+ break;
+
+ default:
+ return complete_fmapi_req(a, rq, FI_STAT_IMG_VER);
+ }
+
+ if (a->flags & AF_DEGRADED_MODE)
+ return complete_fmapi_req(a, rq, FI_STAT_DEGRADED);
+
+ switch (fi->action) {
+ case FI_ACT_DOWN: /* Download the components */
+ /* Verify the format of the flash image */
+ if (!verify_fi(a, fc))
+ return complete_fmapi_req(a, rq, fi->status);
+
+ /* Adjust the BIOS fields that are dependent on the HBA */
+ ch = &fi->cmp_hdr[CH_IT_BIOS];
+
+ if (ch->length)
+ fix_bios(a, fi);
+
+ /* Adjust the EFI fields that are dependent on the HBA */
+ ch = &fi->cmp_hdr[CH_IT_EFI];
+
+ if (ch->length)
+ fix_efi(a, fi);
+
+ /*
+ * Since the image was just modified, compute the checksum on
+ * the modified image. First update the CRC for the composite
+ * expansion ROM image.
+ */
+ fi->checksum = calc_fi_checksum(fc);
+
+ /* Disable the heartbeat */
+ esas2r_disable_heartbeat(a);
+
+ /* Now start up the download sequence */
+ fc->task = FMTSK_ERASE_BOOT;
+ fc->func = VDA_FLASH_BEGINW;
+ fc->comp_typ = CH_IT_CFG;
+ fc->flsh_addr = FLS_OFFSET_BOOT;
+ fc->sgc.length = FLS_LENGTH_BOOT;
+ fc->sgc.cur_offset = NULL;
+
+ /* Setup the callback address */
+ fc->interrupt_cb = fw_download_proc;
+ break;
+
+ case FI_ACT_UPSZ: /* Get upload sizes */
+ fi->adap_typ = get_fi_adap_type(a);
+ fi->flags = 0;
+ fi->num_comps = fc->num_comps;
+ fi->length = fc->fi_hdr_len;
+
+ /* Report the type of boot image in the rel_version string */
+ memcpy(fi->rel_version, a->image_type,
+ sizeof(fi->rel_version));
+
+ /* Build the component headers */
+ for (j = 0, ch = fi->cmp_hdr;
+ j < fi->num_comps;
+ j++, ch++) {
+ ch->img_type = j;
+ ch->status = CH_STAT_PENDING;
+ ch->length = 0;
+ ch->version = 0xffffffff;
+ ch->image_offset = 0;
+ ch->pad[0] = 0;
+ ch->pad[1] = 0;
+ }
+
+ if (a->flash_ver != 0) {
+ fi->cmp_hdr[CH_IT_BIOS].version =
+ fi->cmp_hdr[CH_IT_MAC].version =
+ fi->cmp_hdr[CH_IT_EFI].version =
+ fi->cmp_hdr[CH_IT_CFG].version
+ = a->flash_ver;
+
+ fi->cmp_hdr[CH_IT_BIOS].status =
+ fi->cmp_hdr[CH_IT_MAC].status =
+ fi->cmp_hdr[CH_IT_EFI].status =
+ fi->cmp_hdr[CH_IT_CFG].status =
+ CH_STAT_SUCCESS;
+
+ return complete_fmapi_req(a, rq, FI_STAT_SUCCESS);
+ }
+
+ /* fall through */
+
+ case FI_ACT_UP: /* Upload the components */
+ default:
+ return complete_fmapi_req(a, rq, FI_STAT_INVALID);
+ }
+
+ /*
+ * If we make it here, fc has been setup to do the first task. Call
+ * load_image to format the request, start it, and get out. The
+ * interrupt code will call the callback when the first message is
+ * complete.
+ */
+ if (!load_image(a, rq))
+ return complete_fmapi_req(a, rq, FI_STAT_FAILED);
+
+ esas2r_start_request(a, rq);
+
+ return true;
+}
diff --git a/drivers/scsi/esas2r/esas2r_targdb.c b/drivers/scsi/esas2r/esas2r_targdb.c
new file mode 100644
index 0000000..e540a2f
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_targdb.c
@@ -0,0 +1,306 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r_targdb.c
+ * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
+#include "esas2r.h"
+
+void esas2r_targ_db_initialize(struct esas2r_adapter *a)
+{
+ struct esas2r_target *t;
+
+ for (t = a->targetdb; t < a->targetdb_end; t++) {
+ memset(t, 0, sizeof(struct esas2r_target));
+
+ t->target_state = TS_NOT_PRESENT;
+ t->buffered_target_state = TS_NOT_PRESENT;
+ t->new_target_state = TS_INVALID;
+ }
+}
+
+void esas2r_targ_db_remove_all(struct esas2r_adapter *a, bool notify)
+{
+ struct esas2r_target *t;
+ unsigned long flags;
+
+ for (t = a->targetdb; t < a->targetdb_end; t++) {
+ if (t->target_state != TS_PRESENT)
+ continue;
+
+ spin_lock_irqsave(&a->mem_lock, flags);
+ esas2r_targ_db_remove(a, t);
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+
+ if (notify) {
+ esas2r_trace("remove id:%d", esas2r_targ_get_id(t,
+ a));
+ esas2r_target_state_changed(a, esas2r_targ_get_id(t,
+ a),
+ TS_NOT_PRESENT);
+ }
+ }
+}
+
+void esas2r_targ_db_report_changes(struct esas2r_adapter *a)
+{
+ struct esas2r_target *t;
+ unsigned long flags;
+
+ esas2r_trace_enter();
+
+ if (a->flags & AF_DISC_PENDING) {
+ esas2r_trace_exit();
+ return;
+ }
+
+ for (t = a->targetdb; t < a->targetdb_end; t++) {
+ u8 state = TS_INVALID;
+
+ spin_lock_irqsave(&a->mem_lock, flags);
+ if (t->buffered_target_state != t->target_state)
+ state = t->buffered_target_state = t->target_state;
+
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+ if (state != TS_INVALID) {
+ esas2r_trace("targ_db_report_changes:%d",
+ esas2r_targ_get_id(
+ t,
+ a));
+ esas2r_trace("state:%d", state);
+
+ esas2r_target_state_changed(a,
+ esas2r_targ_get_id(t,
+ a),
+ state);
+ }
+ }
+
+ esas2r_trace_exit();
+}
+
+struct esas2r_target *esas2r_targ_db_add_raid(struct esas2r_adapter *a,
+ struct esas2r_disc_context *
+ dc)
+{
+ struct esas2r_target *t;
+
+ esas2r_trace_enter();
+
+ if (dc->curr_virt_id >= ESAS2R_MAX_TARGETS) {
+ esas2r_bugon();
+ esas2r_trace_exit();
+ return NULL;
+ }
+
+ t = a->targetdb + dc->curr_virt_id;
+
+ if (t->target_state == TS_PRESENT) {
+ esas2r_trace_exit();
+ return NULL;
+ }
+
+ esas2r_hdebug("add RAID %s, T:%d", dc->raid_grp_name,
+ esas2r_targ_get_id(
+ t,
+ a));
+
+ if (dc->interleave == 0
+ || dc->block_size == 0) {
+ /* these are invalid values, don't create the target entry. */
+
+ esas2r_hdebug("invalid RAID group dimensions");
+
+ esas2r_trace_exit();
+
+ return NULL;
+ }
+
+ t->block_size = dc->block_size;
+ t->inter_byte = dc->interleave;
+ t->inter_block = dc->interleave / dc->block_size;
+ t->virt_targ_id = dc->curr_virt_id;
+ t->phys_targ_id = ESAS2R_TARG_ID_INV;
+
+ t->flags &= ~TF_PASS_THRU;
+ t->flags |= TF_USED;
+
+ t->identifier_len = 0;
+
+ t->target_state = TS_PRESENT;
+
+ return t;
+}
+
+struct esas2r_target *esas2r_targ_db_add_pthru(struct esas2r_adapter *a,
+ struct esas2r_disc_context *dc,
+ u8 *ident,
+ u8 ident_len)
+{
+ struct esas2r_target *t;
+
+ esas2r_trace_enter();
+
+ if (dc->curr_virt_id >= ESAS2R_MAX_TARGETS) {
+ esas2r_bugon();
+ esas2r_trace_exit();
+ return NULL;
+ }
+
+ /* see if we found this device before. */
+
+ t = esas2r_targ_db_find_by_ident(a, ident, ident_len);
+
+ if (t == NULL) {
+ t = a->targetdb + dc->curr_virt_id;
+
+ if (ident_len > sizeof(t->identifier)
+ || t->target_state == TS_PRESENT) {
+ esas2r_trace_exit();
+ return NULL;
+ }
+ }
+
+ esas2r_hdebug("add PT; T:%d, V:%d, P:%d", esas2r_targ_get_id(t, a),
+ dc->curr_virt_id,
+ dc->curr_phys_id);
+
+ t->block_size = 0;
+ t->inter_byte = 0;
+ t->inter_block = 0;
+ t->virt_targ_id = dc->curr_virt_id;
+ t->phys_targ_id = dc->curr_phys_id;
+ t->identifier_len = ident_len;
+
+ memcpy(t->identifier, ident, ident_len);
+
+ t->flags |= TF_PASS_THRU | TF_USED;
+
+ t->target_state = TS_PRESENT;
+
+ return t;
+}
+
+void esas2r_targ_db_remove(struct esas2r_adapter *a, struct esas2r_target *t)
+{
+ esas2r_trace_enter();
+
+ t->target_state = TS_NOT_PRESENT;
+
+ esas2r_trace("remove id:%d", esas2r_targ_get_id(t, a));
+
+ esas2r_trace_exit();
+}
+
+struct esas2r_target *esas2r_targ_db_find_by_sas_addr(struct esas2r_adapter *a,
+ u64 *sas_addr)
+{
+ struct esas2r_target *t;
+
+ for (t = a->targetdb; t < a->targetdb_end; t++)
+ if (t->sas_addr == *sas_addr)
+ return t;
+
+ return NULL;
+}
+
+struct esas2r_target *esas2r_targ_db_find_by_ident(struct esas2r_adapter *a,
+ void *identifier,
+ u8 ident_len)
+{
+ struct esas2r_target *t;
+
+ for (t = a->targetdb; t < a->targetdb_end; t++) {
+ if (ident_len == t->identifier_len
+ && memcmp(&t->identifier[0], identifier,
+ ident_len) == 0)
+ return t;
+ }
+
+ return NULL;
+}
+
+u16 esas2r_targ_db_find_next_present(struct esas2r_adapter *a, u16 target_id)
+{
+ u16 id = target_id + 1;
+
+ while (id < ESAS2R_MAX_TARGETS) {
+ struct esas2r_target *t = a->targetdb + id;
+
+ if (t->target_state == TS_PRESENT)
+ break;
+
+ id++;
+ }
+
+ return id;
+}
+
+struct esas2r_target *esas2r_targ_db_find_by_virt_id(struct esas2r_adapter *a,
+ u16 virt_id)
+{
+ struct esas2r_target *t;
+
+ for (t = a->targetdb; t < a->targetdb_end; t++) {
+ if (t->target_state != TS_PRESENT)
+ continue;
+
+ if (t->virt_targ_id == virt_id)
+ return t;
+ }
+
+ return NULL;
+}
+
+u16 esas2r_targ_db_get_tgt_cnt(struct esas2r_adapter *a)
+{
+ u16 devcnt = 0;
+ struct esas2r_target *t;
+ unsigned long flags;
+
+ spin_lock_irqsave(&a->mem_lock, flags);
+ for (t = a->targetdb; t < a->targetdb_end; t++)
+ if (t->target_state == TS_PRESENT)
+ devcnt++;
+
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+
+ return devcnt;
+}
--
1.8.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v4 07/10] SCSI: esas2r: Add IOCTL header file
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
` (5 preceding siblings ...)
2013-08-23 14:35 ` [PATCH v4 06/10] SCSI: esas2r: Add flash and target database functions Bradley Grove
@ 2013-08-23 14:35 ` Bradley Grove
2013-08-23 14:35 ` [PATCH v4 08/10] SCSI: esas2r: Add IOCTL functions Bradley Grove
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Bradley Grove @ 2013-08-23 14:35 UTC (permalink / raw)
To: linux-scsi, jbottomley; +Cc: jseba, Bradley Grove
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
drivers/scsi/esas2r/atioctl.h | 1254 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 1254 insertions(+)
create mode 100644 drivers/scsi/esas2r/atioctl.h
diff --git a/drivers/scsi/esas2r/atioctl.h b/drivers/scsi/esas2r/atioctl.h
new file mode 100644
index 0000000..4aca3d5
--- /dev/null
+++ b/drivers/scsi/esas2r/atioctl.h
@@ -0,0 +1,1254 @@
+/* linux/drivers/scsi/esas2r/atioctl.h
+ * ATTO IOCTL Handling
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+
+#include "atvda.h"
+
+#ifndef ATIOCTL_H
+#define ATIOCTL_H
+
+#define EXPRESS_IOCTL_SIGNATURE "Express"
+#define EXPRESS_IOCTL_SIGNATURE_SIZE 8
+
+/* structure definitions for IOCTls */
+
+struct __packed atto_express_ioctl_header {
+ u8 signature[EXPRESS_IOCTL_SIGNATURE_SIZE];
+ u8 return_code;
+
+#define IOCTL_SUCCESS 0
+#define IOCTL_ERR_INVCMD 101
+#define IOCTL_INIT_FAILED 102
+#define IOCTL_NOT_IMPLEMENTED 103
+#define IOCTL_BAD_CHANNEL 104
+#define IOCTL_TARGET_OVERRUN 105
+#define IOCTL_TARGET_NOT_ENABLED 106
+#define IOCTL_BAD_FLASH_IMGTYPE 107
+#define IOCTL_OUT_OF_RESOURCES 108
+#define IOCTL_GENERAL_ERROR 109
+#define IOCTL_INVALID_PARAM 110
+
+ u8 channel;
+ u8 retries;
+ u8 pad[5];
+};
+
+/*
+ * NOTE - if channel == 0xFF, the request is
+ * handled on the adapter it came in on.
+ */
+#define MAX_NODE_NAMES 256
+
+struct __packed atto_firmware_rw_request {
+ u8 function;
+ #define FUNC_FW_DOWNLOAD 0x09
+ #define FUNC_FW_UPLOAD 0x12
+
+ u8 img_type;
+ #define FW_IMG_FW 0x01
+ #define FW_IMG_BIOS 0x02
+ #define FW_IMG_NVR 0x03
+ #define FW_IMG_RAW 0x04
+ #define FW_IMG_FM_API 0x05
+ #define FW_IMG_FS_API 0x06
+
+ u8 pad[2];
+ u32 img_offset;
+ u32 img_size;
+ u8 image[0x80000];
+};
+
+struct __packed atto_param_rw_request {
+ u16 code;
+ char data_buffer[512];
+};
+
+#define MAX_CHANNEL 256
+
+struct __packed atto_channel_list {
+ u32 num_channels;
+ u8 channel[MAX_CHANNEL];
+};
+
+struct __packed atto_channel_info {
+ u8 major_rev;
+ u8 minor_rev;
+ u8 IRQ;
+ u8 revision_id;
+ u8 pci_bus;
+ u8 pci_dev_func;
+ u8 core_rev;
+ u8 host_no;
+ u16 device_id;
+ u16 vendor_id;
+ u16 ven_dev_id;
+ u8 pad[3];
+ u32 hbaapi_rev;
+};
+
+/*
+ * CSMI control codes
+ * class independent
+ */
+#define CSMI_CC_GET_DRVR_INFO 1
+#define CSMI_CC_GET_CNTLR_CFG 2
+#define CSMI_CC_GET_CNTLR_STS 3
+#define CSMI_CC_FW_DOWNLOAD 4
+
+/* RAID class */
+#define CSMI_CC_GET_RAID_INFO 10
+#define CSMI_CC_GET_RAID_CFG 11
+
+/* HBA class */
+#define CSMI_CC_GET_PHY_INFO 20
+#define CSMI_CC_SET_PHY_INFO 21
+#define CSMI_CC_GET_LINK_ERRORS 22
+#define CSMI_CC_SMP_PASSTHRU 23
+#define CSMI_CC_SSP_PASSTHRU 24
+#define CSMI_CC_STP_PASSTHRU 25
+#define CSMI_CC_GET_SATA_SIG 26
+#define CSMI_CC_GET_SCSI_ADDR 27
+#define CSMI_CC_GET_DEV_ADDR 28
+#define CSMI_CC_TASK_MGT 29
+#define CSMI_CC_GET_CONN_INFO 30
+
+/* PHY class */
+#define CSMI_CC_PHY_CTRL 60
+
+/*
+ * CSMI status codes
+ * class independent
+ */
+#define CSMI_STS_SUCCESS 0
+#define CSMI_STS_FAILED 1
+#define CSMI_STS_BAD_CTRL_CODE 2
+#define CSMI_STS_INV_PARAM 3
+#define CSMI_STS_WRITE_ATTEMPTED 4
+
+/* RAID class */
+#define CSMI_STS_INV_RAID_SET 1000
+
+/* HBA class */
+#define CSMI_STS_PHY_CHANGED CSMI_STS_SUCCESS
+#define CSMI_STS_PHY_UNCHANGEABLE 2000
+#define CSMI_STS_INV_LINK_RATE 2001
+#define CSMI_STS_INV_PHY 2002
+#define CSMI_STS_INV_PHY_FOR_PORT 2003
+#define CSMI_STS_PHY_UNSELECTABLE 2004
+#define CSMI_STS_SELECT_PHY_OR_PORT 2005
+#define CSMI_STS_INV_PORT 2006
+#define CSMI_STS_PORT_UNSELECTABLE 2007
+#define CSMI_STS_CONNECTION_FAILED 2008
+#define CSMI_STS_NO_SATA_DEV 2009
+#define CSMI_STS_NO_SATA_SIGNATURE 2010
+#define CSMI_STS_SCSI_EMULATION 2011
+#define CSMI_STS_NOT_AN_END_DEV 2012
+#define CSMI_STS_NO_SCSI_ADDR 2013
+#define CSMI_STS_NO_DEV_ADDR 2014
+
+/* CSMI class independent structures */
+struct atto_csmi_get_driver_info {
+ char name[81];
+ char description[81];
+ u16 major_rev;
+ u16 minor_rev;
+ u16 build_rev;
+ u16 release_rev;
+ u16 csmi_major_rev;
+ u16 csmi_minor_rev;
+ #define CSMI_MAJOR_REV_0_81 0
+ #define CSMI_MINOR_REV_0_81 81
+
+ #define CSMI_MAJOR_REV CSMI_MAJOR_REV_0_81
+ #define CSMI_MINOR_REV CSMI_MINOR_REV_0_81
+};
+
+struct atto_csmi_get_pci_bus_addr {
+ u8 bus_num;
+ u8 device_num;
+ u8 function_num;
+ u8 reserved;
+};
+
+struct atto_csmi_get_cntlr_cfg {
+ u32 base_io_addr;
+
+ struct {
+ u32 base_memaddr_lo;
+ u32 base_memaddr_hi;
+ };
+
+ u32 board_id;
+ u16 slot_num;
+ #define CSMI_SLOT_NUM_UNKNOWN 0xFFFF
+
+ u8 cntlr_class;
+ #define CSMI_CNTLR_CLASS_HBA 5
+
+ u8 io_bus_type;
+ #define CSMI_BUS_TYPE_PCI 3
+ #define CSMI_BUS_TYPE_PCMCIA 4
+
+ union {
+ struct atto_csmi_get_pci_bus_addr pci_addr;
+ u8 reserved[32];
+ };
+
+ char serial_num[81];
+ u16 major_rev;
+ u16 minor_rev;
+ u16 build_rev;
+ u16 release_rev;
+ u16 bios_major_rev;
+ u16 bios_minor_rev;
+ u16 bios_build_rev;
+ u16 bios_release_rev;
+ u32 cntlr_flags;
+ #define CSMI_CNTLRF_SAS_HBA 0x00000001
+ #define CSMI_CNTLRF_SAS_RAID 0x00000002
+ #define CSMI_CNTLRF_SATA_HBA 0x00000004
+ #define CSMI_CNTLRF_SATA_RAID 0x00000008
+ #define CSMI_CNTLRF_FWD_SUPPORT 0x00010000
+ #define CSMI_CNTLRF_FWD_ONLINE 0x00020000
+ #define CSMI_CNTLRF_FWD_SRESET 0x00040000
+ #define CSMI_CNTLRF_FWD_HRESET 0x00080000
+ #define CSMI_CNTLRF_FWD_RROM 0x00100000
+
+ u16 rrom_major_rev;
+ u16 rrom_minor_rev;
+ u16 rrom_build_rev;
+ u16 rrom_release_rev;
+ u16 rrom_biosmajor_rev;
+ u16 rrom_biosminor_rev;
+ u16 rrom_biosbuild_rev;
+ u16 rrom_biosrelease_rev;
+ u8 reserved2[7];
+};
+
+struct atto_csmi_get_cntlr_sts {
+ u32 status;
+ #define CSMI_CNTLR_STS_GOOD 1
+ #define CSMI_CNTLR_STS_FAILED 2
+ #define CSMI_CNTLR_STS_OFFLINE 3
+ #define CSMI_CNTLR_STS_POWEROFF 4
+
+ u32 offline_reason;
+ #define CSMI_OFFLINE_NO_REASON 0
+ #define CSMI_OFFLINE_INITIALIZING 1
+ #define CSMI_OFFLINE_BUS_DEGRADED 2
+ #define CSMI_OFFLINE_BUS_FAILURE 3
+
+ u8 reserved[28];
+};
+
+struct atto_csmi_fw_download {
+ u32 buffer_len;
+ u32 download_flags;
+ #define CSMI_FWDF_VALIDATE 0x00000001
+ #define CSMI_FWDF_SOFT_RESET 0x00000002
+ #define CSMI_FWDF_HARD_RESET 0x00000004
+
+ u8 reserved[32];
+ u16 status;
+ #define CSMI_FWD_STS_SUCCESS 0
+ #define CSMI_FWD_STS_FAILED 1
+ #define CSMI_FWD_STS_USING_RROM 2
+ #define CSMI_FWD_STS_REJECT 3
+ #define CSMI_FWD_STS_DOWNREV 4
+
+ u16 severity;
+ #define CSMI_FWD_SEV_INFO 0
+ #define CSMI_FWD_SEV_WARNING 1
+ #define CSMI_FWD_SEV_ERROR 2
+ #define CSMI_FWD_SEV_FATAL 3
+
+};
+
+/* CSMI RAID class structures */
+struct atto_csmi_get_raid_info {
+ u32 num_raid_sets;
+ u32 max_drivesper_set;
+ u8 reserved[92];
+};
+
+struct atto_csmi_raid_drives {
+ char model[40];
+ char firmware[8];
+ char serial_num[40];
+ u8 sas_addr[8];
+ u8 lun[8];
+ u8 drive_sts;
+ #define CSMI_DRV_STS_OK 0
+ #define CSMI_DRV_STS_REBUILDING 1
+ #define CSMI_DRV_STS_FAILED 2
+ #define CSMI_DRV_STS_DEGRADED 3
+
+ u8 drive_usage;
+ #define CSMI_DRV_USE_NOT_USED 0
+ #define CSMI_DRV_USE_MEMBER 1
+ #define CSMI_DRV_USE_SPARE 2
+
+ u8 reserved[30]; /* spec says 22 */
+};
+
+struct atto_csmi_get_raid_cfg {
+ u32 raid_set_index;
+ u32 capacity;
+ u32 stripe_size;
+ u8 raid_type;
+ u8 status;
+ u8 information;
+ u8 drive_cnt;
+ u8 reserved[20];
+
+ struct atto_csmi_raid_drives drives[1];
+};
+
+/* CSMI HBA class structures */
+struct atto_csmi_phy_entity {
+ u8 ident_frame[0x1C];
+ u8 port_id;
+ u8 neg_link_rate;
+ u8 min_link_rate;
+ u8 max_link_rate;
+ u8 phy_change_cnt;
+ u8 auto_discover;
+ #define CSMI_DISC_NOT_SUPPORTED 0x00
+ #define CSMI_DISC_NOT_STARTED 0x01
+ #define CSMI_DISC_IN_PROGRESS 0x02
+ #define CSMI_DISC_COMPLETE 0x03
+ #define CSMI_DISC_ERROR 0x04
+
+ u8 reserved[2];
+ u8 attach_ident_frame[0x1C];
+};
+
+struct atto_csmi_get_phy_info {
+ u8 number_of_phys;
+ u8 reserved[3];
+ struct atto_csmi_phy_entity
+ phy[32];
+};
+
+struct atto_csmi_set_phy_info {
+ u8 phy_id;
+ u8 neg_link_rate;
+ #define CSMI_NEG_RATE_NEGOTIATE 0x00
+ #define CSMI_NEG_RATE_PHY_DIS 0x01
+
+ u8 prog_minlink_rate;
+ u8 prog_maxlink_rate;
+ u8 signal_class;
+ #define CSMI_SIG_CLASS_UNKNOWN 0x00
+ #define CSMI_SIG_CLASS_DIRECT 0x01
+ #define CSMI_SIG_CLASS_SERVER 0x02
+ #define CSMI_SIG_CLASS_ENCLOSURE 0x03
+
+ u8 reserved[3];
+};
+
+struct atto_csmi_get_link_errors {
+ u8 phy_id;
+ u8 reset_cnts;
+ #define CSMI_RESET_CNTS_NO 0x00
+ #define CSMI_RESET_CNTS_YES 0x01
+
+ u8 reserved[2];
+ u32 inv_dw_cnt;
+ u32 disp_err_cnt;
+ u32 loss_ofdw_sync_cnt;
+ u32 phy_reseterr_cnt;
+
+ /*
+ * The following field has been added by ATTO for ease of
+ * implementation of additional statistics. Drivers must validate
+ * the length of the IOCTL payload prior to filling them in so CSMI
+ * complaint applications function correctly.
+ */
+
+ u32 crc_err_cnt;
+};
+
+struct atto_csmi_smp_passthru {
+ u8 phy_id;
+ u8 port_id;
+ u8 conn_rate;
+ u8 reserved;
+ u8 dest_sas_addr[8];
+ u32 req_len;
+ u8 smp_req[1020];
+ u8 conn_sts;
+ u8 reserved2[3];
+ u32 rsp_len;
+ u8 smp_rsp[1020];
+};
+
+struct atto_csmi_ssp_passthru_sts {
+ u8 conn_sts;
+ u8 reserved[3];
+ u8 data_present;
+ u8 status;
+ u16 rsp_length;
+ u8 rsp[256];
+ u32 data_bytes;
+};
+
+struct atto_csmi_ssp_passthru {
+ u8 phy_id;
+ u8 port_id;
+ u8 conn_rate;
+ u8 reserved;
+ u8 dest_sas_addr[8];
+ u8 lun[8];
+ u8 cdb_len;
+ u8 add_cdb_len;
+ u8 reserved2[2];
+ u8 cdb[16];
+ u32 flags;
+ #define CSMI_SSPF_DD_READ 0x00000001
+ #define CSMI_SSPF_DD_WRITE 0x00000002
+ #define CSMI_SSPF_DD_UNSPECIFIED 0x00000004
+ #define CSMI_SSPF_TA_SIMPLE 0x00000000
+ #define CSMI_SSPF_TA_HEAD_OF_Q 0x00000010
+ #define CSMI_SSPF_TA_ORDERED 0x00000020
+ #define CSMI_SSPF_TA_ACA 0x00000040
+
+ u8 add_cdb[24];
+ u32 data_len;
+
+ struct atto_csmi_ssp_passthru_sts sts;
+};
+
+struct atto_csmi_stp_passthru_sts {
+ u8 conn_sts;
+ u8 reserved[3];
+ u8 sts_fis[20];
+ u32 scr[16];
+ u32 data_bytes;
+};
+
+struct atto_csmi_stp_passthru {
+ u8 phy_id;
+ u8 port_id;
+ u8 conn_rate;
+ u8 reserved;
+ u8 dest_sas_addr[8];
+ u8 reserved2[4];
+ u8 command_fis[20];
+ u32 flags;
+ #define CSMI_STPF_DD_READ 0x00000001
+ #define CSMI_STPF_DD_WRITE 0x00000002
+ #define CSMI_STPF_DD_UNSPECIFIED 0x00000004
+ #define CSMI_STPF_PIO 0x00000010
+ #define CSMI_STPF_DMA 0x00000020
+ #define CSMI_STPF_PACKET 0x00000040
+ #define CSMI_STPF_DMA_QUEUED 0x00000080
+ #define CSMI_STPF_EXECUTE_DIAG 0x00000100
+ #define CSMI_STPF_RESET_DEVICE 0x00000200
+
+ u32 data_len;
+
+ struct atto_csmi_stp_passthru_sts sts;
+};
+
+struct atto_csmi_get_sata_sig {
+ u8 phy_id;
+ u8 reserved[3];
+ u8 reg_dth_fis[20];
+};
+
+struct atto_csmi_get_scsi_addr {
+ u8 sas_addr[8];
+ u8 sas_lun[8];
+ u8 host_index;
+ u8 path_id;
+ u8 target_id;
+ u8 lun;
+};
+
+struct atto_csmi_get_dev_addr {
+ u8 host_index;
+ u8 path_id;
+ u8 target_id;
+ u8 lun;
+ u8 sas_addr[8];
+ u8 sas_lun[8];
+};
+
+struct atto_csmi_task_mgmt {
+ u8 host_index;
+ u8 path_id;
+ u8 target_id;
+ u8 lun;
+ u32 flags;
+ #define CSMI_TMF_TASK_IU 0x00000001
+ #define CSMI_TMF_HARD_RST 0x00000002
+ #define CSMI_TMF_SUPPRESS_RSLT 0x00000004
+
+ u32 queue_tag;
+ u32 reserved;
+ u8 task_mgt_func;
+ u8 reserved2[7];
+ u32 information;
+ #define CSMI_TM_INFO_TEST 1
+ #define CSMI_TM_INFO_EXCEEDED 2
+ #define CSMI_TM_INFO_DEMAND 3
+ #define CSMI_TM_INFO_TRIGGER 4
+
+ struct atto_csmi_ssp_passthru_sts sts;
+
+};
+
+struct atto_csmi_get_conn_info {
+ u32 pinout;
+ #define CSMI_CON_UNKNOWN 0x00000001
+ #define CSMI_CON_SFF_8482 0x00000002
+ #define CSMI_CON_SFF_8470_LANE_1 0x00000100
+ #define CSMI_CON_SFF_8470_LANE_2 0x00000200
+ #define CSMI_CON_SFF_8470_LANE_3 0x00000400
+ #define CSMI_CON_SFF_8470_LANE_4 0x00000800
+ #define CSMI_CON_SFF_8484_LANE_1 0x00010000
+ #define CSMI_CON_SFF_8484_LANE_2 0x00020000
+ #define CSMI_CON_SFF_8484_LANE_3 0x00040000
+ #define CSMI_CON_SFF_8484_LANE_4 0x00080000
+
+ u8 connector[16];
+ u8 location;
+ #define CSMI_CON_INTERNAL 0x02
+ #define CSMI_CON_EXTERNAL 0x04
+ #define CSMI_CON_SWITCHABLE 0x08
+ #define CSMI_CON_AUTO 0x10
+
+ u8 reserved[15];
+};
+
+/* CSMI PHY class structures */
+struct atto_csmi_character {
+ u8 type_flags;
+ #define CSMI_CTF_POS_DISP 0x01
+ #define CSMI_CTF_NEG_DISP 0x02
+ #define CSMI_CTF_CTRL_CHAR 0x04
+
+ u8 value;
+};
+
+struct atto_csmi_pc_ctrl {
+ u8 type;
+ #define CSMI_PC_TYPE_UNDEFINED 0x00
+ #define CSMI_PC_TYPE_SATA 0x01
+ #define CSMI_PC_TYPE_SAS 0x02
+ u8 rate;
+ u8 reserved[6];
+ u32 vendor_unique[8];
+ u32 tx_flags;
+ #define CSMI_PC_TXF_PREEMP_DIS 0x00000001
+
+ signed char tx_amplitude;
+ signed char tx_preemphasis;
+ signed char tx_slew_rate;
+ signed char tx_reserved[13];
+ u8 tx_vendor_unique[64];
+ u32 rx_flags;
+ #define CSMI_PC_RXF_EQ_DIS 0x00000001
+
+ signed char rx_threshold;
+ signed char rx_equalization_gain;
+ signed char rx_reserved[14];
+ u8 rx_vendor_unique[64];
+ u32 pattern_flags;
+ #define CSMI_PC_PATF_FIXED 0x00000001
+ #define CSMI_PC_PATF_DIS_SCR 0x00000002
+ #define CSMI_PC_PATF_DIS_ALIGN 0x00000004
+ #define CSMI_PC_PATF_DIS_SSC 0x00000008
+
+ u8 fixed_pattern;
+ #define CSMI_PC_FP_CJPAT 0x00000001
+ #define CSMI_PC_FP_ALIGN 0x00000002
+
+ u8 user_pattern_len;
+ u8 pattern_reserved[6];
+
+ struct atto_csmi_character user_pattern_buffer[16];
+};
+
+struct atto_csmi_phy_ctrl {
+ u32 function;
+ #define CSMI_PC_FUNC_GET_SETUP 0x00000100
+
+ u8 phy_id;
+ u16 len_of_cntl;
+ u8 num_of_cntls;
+ u8 reserved[4];
+ u32 link_flags;
+ #define CSMI_PHY_ACTIVATE_CTRL 0x00000001
+ #define CSMI_PHY_UPD_SPINUP_RATE 0x00000002
+ #define CSMI_PHY_AUTO_COMWAKE 0x00000004
+
+ u8 spinup_rate;
+ u8 link_reserved[7];
+ u32 vendor_unique[8];
+
+ struct atto_csmi_pc_ctrl control[1];
+};
+
+union atto_ioctl_csmi {
+ struct atto_csmi_get_driver_info drvr_info;
+ struct atto_csmi_get_cntlr_cfg cntlr_cfg;
+ struct atto_csmi_get_cntlr_sts cntlr_sts;
+ struct atto_csmi_fw_download fw_dwnld;
+ struct atto_csmi_get_raid_info raid_info;
+ struct atto_csmi_get_raid_cfg raid_cfg;
+ struct atto_csmi_get_phy_info get_phy_info;
+ struct atto_csmi_set_phy_info set_phy_info;
+ struct atto_csmi_get_link_errors link_errs;
+ struct atto_csmi_smp_passthru smp_pass_thru;
+ struct atto_csmi_ssp_passthru ssp_pass_thru;
+ struct atto_csmi_stp_passthru stp_pass_thru;
+ struct atto_csmi_task_mgmt tsk_mgt;
+ struct atto_csmi_get_sata_sig sata_sig;
+ struct atto_csmi_get_scsi_addr scsi_addr;
+ struct atto_csmi_get_dev_addr dev_addr;
+ struct atto_csmi_get_conn_info conn_info[32];
+ struct atto_csmi_phy_ctrl phy_ctrl;
+};
+
+struct atto_csmi {
+ u32 control_code;
+ u32 status;
+ union atto_ioctl_csmi data;
+};
+
+struct atto_module_info {
+ void *adapter;
+ void *pci_dev;
+ void *scsi_host;
+ unsigned short host_no;
+ union {
+ struct {
+ u64 node_name;
+ u64 port_name;
+ };
+ u64 sas_addr;
+ };
+};
+
+#define ATTO_FUNC_GET_ADAP_INFO 0x00
+#define ATTO_VER_GET_ADAP_INFO0 0
+#define ATTO_VER_GET_ADAP_INFO ATTO_VER_GET_ADAP_INFO0
+
+struct __packed atto_hba_get_adapter_info {
+
+ struct {
+ u16 vendor_id;
+ u16 device_id;
+ u16 ss_vendor_id;
+ u16 ss_device_id;
+ u8 class_code[3];
+ u8 rev_id;
+ u8 bus_num;
+ u8 dev_num;
+ u8 func_num;
+ u8 link_width_max;
+ u8 link_width_curr;
+ #define ATTO_GAI_PCILW_UNKNOWN 0x00
+
+ u8 link_speed_max;
+ u8 link_speed_curr;
+ #define ATTO_GAI_PCILS_UNKNOWN 0x00
+ #define ATTO_GAI_PCILS_GEN1 0x01
+ #define ATTO_GAI_PCILS_GEN2 0x02
+ #define ATTO_GAI_PCILS_GEN3 0x03
+
+ u8 interrupt_mode;
+ #define ATTO_GAI_PCIIM_UNKNOWN 0x00
+ #define ATTO_GAI_PCIIM_LEGACY 0x01
+ #define ATTO_GAI_PCIIM_MSI 0x02
+ #define ATTO_GAI_PCIIM_MSIX 0x03
+
+ u8 msi_vector_cnt;
+ u8 reserved[19];
+ } pci;
+
+ u8 adap_type;
+ #define ATTO_GAI_AT_EPCIU320 0x00
+ #define ATTO_GAI_AT_ESASRAID 0x01
+ #define ATTO_GAI_AT_ESASRAID2 0x02
+ #define ATTO_GAI_AT_ESASHBA 0x03
+ #define ATTO_GAI_AT_ESASHBA2 0x04
+ #define ATTO_GAI_AT_CELERITY 0x05
+ #define ATTO_GAI_AT_CELERITY8 0x06
+ #define ATTO_GAI_AT_FASTFRAME 0x07
+ #define ATTO_GAI_AT_ESASHBA3 0x08
+ #define ATTO_GAI_AT_CELERITY16 0x09
+ #define ATTO_GAI_AT_TLSASHBA 0x0A
+ #define ATTO_GAI_AT_ESASHBA4 0x0B
+
+ u8 adap_flags;
+ #define ATTO_GAI_AF_DEGRADED 0x01
+ #define ATTO_GAI_AF_SPT_SUPP 0x02
+ #define ATTO_GAI_AF_DEVADDR_SUPP 0x04
+ #define ATTO_GAI_AF_PHYCTRL_SUPP 0x08
+ #define ATTO_GAI_AF_TEST_SUPP 0x10
+ #define ATTO_GAI_AF_DIAG_SUPP 0x20
+ #define ATTO_GAI_AF_VIRT_SES 0x40
+ #define ATTO_GAI_AF_CONN_CTRL 0x80
+
+ u8 num_ports;
+ u8 num_phys;
+ u8 drvr_rev_major;
+ u8 drvr_rev_minor;
+ u8 drvr_revsub_minor;
+ u8 drvr_rev_build;
+ char drvr_rev_ascii[16];
+ char drvr_name[32];
+ char firmware_rev[16];
+ char flash_rev[16];
+ char model_name_short[16];
+ char model_name[32];
+ u32 num_targets;
+ u32 num_targsper_bus;
+ u32 num_lunsper_targ;
+ u8 num_busses;
+ u8 num_connectors;
+ u8 adap_flags2;
+ #define ATTO_GAI_AF2_FCOE_SUPP 0x01
+ #define ATTO_GAI_AF2_NIC_SUPP 0x02
+ #define ATTO_GAI_AF2_LOCATE_SUPP 0x04
+ #define ATTO_GAI_AF2_ADAP_CTRL_SUPP 0x08
+ #define ATTO_GAI_AF2_DEV_INFO_SUPP 0x10
+ #define ATTO_GAI_AF2_NPIV_SUPP 0x20
+ #define ATTO_GAI_AF2_MP_SUPP 0x40
+
+ u8 num_temp_sensors;
+ u32 num_targets_backend;
+ u32 tunnel_flags;
+ #define ATTO_GAI_TF_MEM_RW 0x00000001
+ #define ATTO_GAI_TF_TRACE 0x00000002
+ #define ATTO_GAI_TF_SCSI_PASS_THRU 0x00000004
+ #define ATTO_GAI_TF_GET_DEV_ADDR 0x00000008
+ #define ATTO_GAI_TF_PHY_CTRL 0x00000010
+ #define ATTO_GAI_TF_CONN_CTRL 0x00000020
+ #define ATTO_GAI_TF_GET_DEV_INFO 0x00000040
+
+ u8 reserved3[0x138];
+};
+
+#define ATTO_FUNC_GET_ADAP_ADDR 0x01
+#define ATTO_VER_GET_ADAP_ADDR0 0
+#define ATTO_VER_GET_ADAP_ADDR ATTO_VER_GET_ADAP_ADDR0
+
+struct __packed atto_hba_get_adapter_address {
+
+ u8 addr_type;
+ #define ATTO_GAA_AT_PORT 0x00
+ #define ATTO_GAA_AT_NODE 0x01
+ #define ATTO_GAA_AT_CURR_MAC 0x02
+ #define ATTO_GAA_AT_PERM_MAC 0x03
+ #define ATTO_GAA_AT_VNIC 0x04
+
+ u8 port_id;
+ u16 addr_len;
+ u8 address[256];
+};
+
+#define ATTO_FUNC_MEM_RW 0x02
+#define ATTO_VER_MEM_RW0 0
+#define ATTO_VER_MEM_RW ATTO_VER_MEM_RW0
+
+struct __packed atto_hba_memory_read_write {
+ u8 mem_func;
+ u8 mem_type;
+ union {
+ u8 pci_index;
+ u8 i2c_dev;
+ };
+ u8 i2c_status;
+ u32 length;
+ u64 address;
+ u8 reserved[48];
+
+};
+
+#define ATTO_FUNC_TRACE 0x03
+#define ATTO_VER_TRACE0 0
+#define ATTO_VER_TRACE1 1
+#define ATTO_VER_TRACE ATTO_VER_TRACE1
+
+struct __packed atto_hba_trace {
+ u8 trace_func;
+ #define ATTO_TRC_TF_GET_INFO 0x00
+ #define ATTO_TRC_TF_ENABLE 0x01
+ #define ATTO_TRC_TF_DISABLE 0x02
+ #define ATTO_TRC_TF_SET_MASK 0x03
+ #define ATTO_TRC_TF_UPLOAD 0x04
+ #define ATTO_TRC_TF_RESET 0x05
+
+ u8 trace_type;
+ #define ATTO_TRC_TT_DRIVER 0x00
+ #define ATTO_TRC_TT_FWCOREDUMP 0x01
+
+ u8 reserved[2];
+ u32 current_offset;
+ u32 total_length;
+ u32 trace_mask;
+ u8 reserved2[48];
+};
+
+#define ATTO_FUNC_SCSI_PASS_THRU 0x04
+#define ATTO_VER_SCSI_PASS_THRU0 0
+#define ATTO_VER_SCSI_PASS_THRU ATTO_VER_SCSI_PASS_THRU0
+
+struct __packed atto_hba_scsi_pass_thru {
+ u8 cdb[32];
+ u8 cdb_length;
+ u8 req_status;
+ #define ATTO_SPT_RS_SUCCESS 0x00
+ #define ATTO_SPT_RS_FAILED 0x01
+ #define ATTO_SPT_RS_OVERRUN 0x02
+ #define ATTO_SPT_RS_UNDERRUN 0x03
+ #define ATTO_SPT_RS_NO_DEVICE 0x04
+ #define ATTO_SPT_RS_NO_LUN 0x05
+ #define ATTO_SPT_RS_TIMEOUT 0x06
+ #define ATTO_SPT_RS_BUS_RESET 0x07
+ #define ATTO_SPT_RS_ABORTED 0x08
+ #define ATTO_SPT_RS_BUSY 0x09
+ #define ATTO_SPT_RS_DEGRADED 0x0A
+
+ u8 scsi_status;
+ u8 sense_length;
+ u32 flags;
+ #define ATTO_SPTF_DATA_IN 0x00000001
+ #define ATTO_SPTF_DATA_OUT 0x00000002
+ #define ATTO_SPTF_SIMPLE_Q 0x00000004
+ #define ATTO_SPTF_HEAD_OF_Q 0x00000008
+ #define ATTO_SPTF_ORDERED_Q 0x00000010
+
+ u32 timeout;
+ u32 target_id;
+ u8 lun[8];
+ u32 residual_length;
+ u8 sense_data[0xFC];
+ u8 reserved[0x28];
+};
+
+#define ATTO_FUNC_GET_DEV_ADDR 0x05
+#define ATTO_VER_GET_DEV_ADDR0 0
+#define ATTO_VER_GET_DEV_ADDR ATTO_VER_GET_DEV_ADDR0
+
+struct __packed atto_hba_get_device_address {
+ u8 addr_type;
+ #define ATTO_GDA_AT_PORT 0x00
+ #define ATTO_GDA_AT_NODE 0x01
+ #define ATTO_GDA_AT_MAC 0x02
+ #define ATTO_GDA_AT_PORTID 0x03
+ #define ATTO_GDA_AT_UNIQUE 0x04
+
+ u8 reserved;
+ u16 addr_len;
+ u32 target_id;
+ u8 address[256];
+};
+
+/* The following functions are supported by firmware but do not have any
+ * associated driver structures
+ */
+#define ATTO_FUNC_PHY_CTRL 0x06
+#define ATTO_FUNC_CONN_CTRL 0x0C
+#define ATTO_FUNC_ADAP_CTRL 0x0E
+#define ATTO_VER_ADAP_CTRL0 0
+#define ATTO_VER_ADAP_CTRL ATTO_VER_ADAP_CTRL0
+
+struct __packed atto_hba_adap_ctrl {
+ u8 adap_func;
+ #define ATTO_AC_AF_HARD_RST 0x00
+ #define ATTO_AC_AF_GET_STATE 0x01
+ #define ATTO_AC_AF_GET_TEMP 0x02
+
+ u8 adap_state;
+ #define ATTO_AC_AS_UNKNOWN 0x00
+ #define ATTO_AC_AS_OK 0x01
+ #define ATTO_AC_AS_RST_SCHED 0x02
+ #define ATTO_AC_AS_RST_IN_PROG 0x03
+ #define ATTO_AC_AS_RST_DISC 0x04
+ #define ATTO_AC_AS_DEGRADED 0x05
+ #define ATTO_AC_AS_DISABLED 0x06
+ #define ATTO_AC_AS_TEMP 0x07
+
+ u8 reserved[2];
+
+ union {
+ struct {
+ u8 temp_sensor;
+ u8 temp_state;
+
+ #define ATTO_AC_TS_UNSUPP 0x00
+ #define ATTO_AC_TS_UNKNOWN 0x01
+ #define ATTO_AC_TS_INIT_FAILED 0x02
+ #define ATTO_AC_TS_NORMAL 0x03
+ #define ATTO_AC_TS_OUT_OF_RANGE 0x04
+ #define ATTO_AC_TS_FAULT 0x05
+
+ signed short temp_value;
+ signed short temp_lower_lim;
+ signed short temp_upper_lim;
+ char temp_desc[32];
+ u8 reserved2[20];
+ };
+ };
+};
+
+#define ATTO_FUNC_GET_DEV_INFO 0x0F
+#define ATTO_VER_GET_DEV_INFO0 0
+#define ATTO_VER_GET_DEV_INFO ATTO_VER_GET_DEV_INFO0
+
+struct __packed atto_hba_sas_device_info {
+
+ #define ATTO_SDI_MAX_PHYS_WIDE_PORT 16
+
+ u8 phy_id[ATTO_SDI_MAX_PHYS_WIDE_PORT]; /* IDs of parent exp/adapt */
+ #define ATTO_SDI_PHY_ID_INV ATTO_SAS_PHY_ID_INV
+ u32 exp_target_id;
+ u32 sas_port_mask;
+ u8 sas_level;
+ #define ATTO_SDI_SAS_LVL_INV 0xFF
+
+ u8 slot_num;
+ #define ATTO_SDI_SLOT_NUM_INV ATTO_SLOT_NUM_INV
+
+ u8 dev_type;
+ #define ATTO_SDI_DT_END_DEVICE 0
+ #define ATTO_SDI_DT_EXPANDER 1
+ #define ATTO_SDI_DT_PORT_MULT 2
+
+ u8 ini_flags;
+ u8 tgt_flags;
+ u8 link_rate; /* SMP_RATE_XXX */
+ u8 loc_flags;
+ #define ATTO_SDI_LF_DIRECT 0x01
+ #define ATTO_SDI_LF_EXPANDER 0x02
+ #define ATTO_SDI_LF_PORT_MULT 0x04
+ u8 pm_port;
+ u8 reserved[0x60];
+};
+
+union atto_hba_device_info {
+ struct atto_hba_sas_device_info sas_dev_info;
+};
+
+struct __packed atto_hba_get_device_info {
+ u32 target_id;
+ u8 info_type;
+ #define ATTO_GDI_IT_UNKNOWN 0x00
+ #define ATTO_GDI_IT_SAS 0x01
+ #define ATTO_GDI_IT_FC 0x02
+ #define ATTO_GDI_IT_FCOE 0x03
+
+ u8 reserved[11];
+ union atto_hba_device_info dev_info;
+};
+
+struct atto_ioctl {
+ u8 version;
+ u8 function; /* ATTO_FUNC_XXX */
+ u8 status;
+#define ATTO_STS_SUCCESS 0x00
+#define ATTO_STS_FAILED 0x01
+#define ATTO_STS_INV_VERSION 0x02
+#define ATTO_STS_OUT_OF_RSRC 0x03
+#define ATTO_STS_INV_FUNC 0x04
+#define ATTO_STS_UNSUPPORTED 0x05
+#define ATTO_STS_INV_ADAPTER 0x06
+#define ATTO_STS_INV_DRVR_VER 0x07
+#define ATTO_STS_INV_PARAM 0x08
+#define ATTO_STS_TIMEOUT 0x09
+#define ATTO_STS_NOT_APPL 0x0A
+#define ATTO_STS_DEGRADED 0x0B
+
+ u8 flags;
+ #define HBAF_TUNNEL 0x01
+
+ u32 data_length;
+ u8 reserved2[56];
+
+ union {
+ u8 byte[1];
+ struct atto_hba_get_adapter_info get_adap_info;
+ struct atto_hba_get_adapter_address get_adap_addr;
+ struct atto_hba_scsi_pass_thru scsi_pass_thru;
+ struct atto_hba_get_device_address get_dev_addr;
+ struct atto_hba_adap_ctrl adap_ctrl;
+ struct atto_hba_get_device_info get_dev_info;
+ struct atto_hba_trace trace;
+ } data;
+
+};
+
+struct __packed atto_ioctl_vda_scsi_cmd {
+
+ #define ATTO_VDA_SCSI_VER0 0
+ #define ATTO_VDA_SCSI_VER ATTO_VDA_SCSI_VER0
+
+ u8 cdb[16];
+ u32 flags;
+ u32 data_length;
+ u32 residual_length;
+ u16 target_id;
+ u8 sense_len;
+ u8 scsi_stat;
+ u8 reserved[8];
+ u8 sense_data[80];
+};
+
+struct __packed atto_ioctl_vda_flash_cmd {
+
+ #define ATTO_VDA_FLASH_VER0 0
+ #define ATTO_VDA_FLASH_VER ATTO_VDA_FLASH_VER0
+
+ u32 flash_addr;
+ u32 data_length;
+ u8 sub_func;
+ u8 reserved[15];
+
+ union {
+ struct {
+ u32 flash_size;
+ u32 page_size;
+ u8 prod_info[32];
+ } info;
+
+ struct {
+ char file_name[16]; /* 8.3 fname, NULL term, wc=* */
+ u32 file_size;
+ } file;
+ } data;
+
+};
+
+struct __packed atto_ioctl_vda_diag_cmd {
+
+ #define ATTO_VDA_DIAG_VER0 0
+ #define ATTO_VDA_DIAG_VER ATTO_VDA_DIAG_VER0
+
+ u64 local_addr;
+ u32 data_length;
+ u8 sub_func;
+ u8 flags;
+ u8 reserved[3];
+};
+
+struct __packed atto_ioctl_vda_cli_cmd {
+
+ #define ATTO_VDA_CLI_VER0 0
+ #define ATTO_VDA_CLI_VER ATTO_VDA_CLI_VER0
+
+ u32 cmd_rsp_len;
+};
+
+struct __packed atto_ioctl_vda_smp_cmd {
+
+ #define ATTO_VDA_SMP_VER0 0
+ #define ATTO_VDA_SMP_VER ATTO_VDA_SMP_VER0
+
+ u64 dest;
+ u32 cmd_rsp_len;
+};
+
+struct __packed atto_ioctl_vda_cfg_cmd {
+
+ #define ATTO_VDA_CFG_VER0 0
+ #define ATTO_VDA_CFG_VER ATTO_VDA_CFG_VER0
+
+ u32 data_length;
+ u8 cfg_func;
+ u8 reserved[11];
+
+ union {
+ u8 bytes[112];
+ struct atto_vda_cfg_init init;
+ } data;
+
+};
+
+struct __packed atto_ioctl_vda_mgt_cmd {
+
+ #define ATTO_VDA_MGT_VER0 0
+ #define ATTO_VDA_MGT_VER ATTO_VDA_MGT_VER0
+
+ u8 mgt_func;
+ u8 scan_generation;
+ u16 dev_index;
+ u32 data_length;
+ u8 reserved[8];
+ union {
+ u8 bytes[112];
+ struct atto_vda_devinfo dev_info;
+ struct atto_vda_grp_info grp_info;
+ struct atto_vdapart_info part_info;
+ struct atto_vda_dh_info dh_info;
+ struct atto_vda_metrics_info metrics_info;
+ struct atto_vda_schedule_info sched_info;
+ struct atto_vda_n_vcache_info nvcache_info;
+ struct atto_vda_buzzer_info buzzer_info;
+ struct atto_vda_adapter_info adapter_info;
+ struct atto_vda_temp_info temp_info;
+ struct atto_vda_fan_info fan_info;
+ } data;
+};
+
+struct __packed atto_ioctl_vda_gsv_cmd {
+
+ #define ATTO_VDA_GSV_VER0 0
+ #define ATTO_VDA_GSV_VER ATTO_VDA_GSV_VER0
+
+ u8 rsp_len;
+ u8 reserved[7];
+ u8 version_info[1];
+ #define ATTO_VDA_VER_UNSUPPORTED 0xFF
+
+};
+
+struct __packed atto_ioctl_vda {
+ u8 version;
+ u8 function; /* VDA_FUNC_XXXX */
+ u8 status; /* ATTO_STS_XXX */
+ u8 vda_status; /* RS_XXX (if status == ATTO_STS_SUCCESS) */
+ u32 data_length;
+ u8 reserved[8];
+
+ union {
+ struct atto_ioctl_vda_scsi_cmd scsi;
+ struct atto_ioctl_vda_flash_cmd flash;
+ struct atto_ioctl_vda_diag_cmd diag;
+ struct atto_ioctl_vda_cli_cmd cli;
+ struct atto_ioctl_vda_smp_cmd smp;
+ struct atto_ioctl_vda_cfg_cmd cfg;
+ struct atto_ioctl_vda_mgt_cmd mgt;
+ struct atto_ioctl_vda_gsv_cmd gsv;
+ u8 cmd_info[256];
+ } cmd;
+
+ union {
+ u8 data[1];
+ struct atto_vda_devinfo2 dev_info2;
+ } data;
+
+};
+
+struct __packed atto_ioctl_smp {
+ u8 version;
+ #define ATTO_SMP_VERSION0 0
+ #define ATTO_SMP_VERSION1 1
+ #define ATTO_SMP_VERSION2 2
+ #define ATTO_SMP_VERSION ATTO_SMP_VERSION2
+
+ u8 function;
+#define ATTO_SMP_FUNC_DISC_SMP 0x00
+#define ATTO_SMP_FUNC_DISC_TARG 0x01
+#define ATTO_SMP_FUNC_SEND_CMD 0x02
+#define ATTO_SMP_FUNC_DISC_TARG_DIRECT 0x03
+#define ATTO_SMP_FUNC_SEND_CMD_DIRECT 0x04
+#define ATTO_SMP_FUNC_DISC_SMP_DIRECT 0x05
+
+ u8 status; /* ATTO_STS_XXX */
+ u8 smp_status; /* if status == ATTO_STS_SUCCESS */
+ #define ATTO_SMP_STS_SUCCESS 0x00
+ #define ATTO_SMP_STS_FAILURE 0x01
+ #define ATTO_SMP_STS_RESCAN 0x02
+ #define ATTO_SMP_STS_NOT_FOUND 0x03
+
+ u16 target_id;
+ u8 phy_id;
+ u8 dev_index;
+ u64 smp_sas_addr;
+ u64 targ_sas_addr;
+ u32 req_length;
+ u32 rsp_length;
+ u8 flags;
+ #define ATTO_SMPF_ROOT_EXP 0x01 /* expander direct attached */
+
+ u8 reserved[31];
+
+ union {
+ u8 byte[1];
+ u32 dword[1];
+ } data;
+
+};
+
+struct __packed atto_express_ioctl {
+ struct atto_express_ioctl_header header;
+
+ union {
+ struct atto_firmware_rw_request fwrw;
+ struct atto_param_rw_request prw;
+ struct atto_channel_list chanlist;
+ struct atto_channel_info chaninfo;
+ struct atto_ioctl ioctl_hba;
+ struct atto_module_info modinfo;
+ struct atto_ioctl_vda ioctl_vda;
+ struct atto_ioctl_smp ioctl_smp;
+ struct atto_csmi csmi;
+
+ } data;
+};
+
+/* The struct associated with the code is listed after the definition */
+#define EXPRESS_IOCTL_MIN 0x4500
+#define EXPRESS_IOCTL_RW_FIRMWARE 0x4500 /* FIRMWARERW */
+#define EXPRESS_IOCTL_READ_PARAMS 0x4501 /* PARAMRW */
+#define EXPRESS_IOCTL_WRITE_PARAMS 0x4502 /* PARAMRW */
+#define EXPRESS_IOCTL_FC_API 0x4503 /* internal */
+#define EXPRESS_IOCTL_GET_CHANNELS 0x4504 /* CHANNELLIST */
+#define EXPRESS_IOCTL_CHAN_INFO 0x4505 /* CHANNELINFO */
+#define EXPRESS_IOCTL_DEFAULT_PARAMS 0x4506 /* PARAMRW */
+#define EXPRESS_ADDR_MEMORY 0x4507 /* MEMADDR */
+#define EXPRESS_RW_MEMORY 0x4508 /* MEMRW */
+#define EXPRESS_TSDK_DUMP 0x4509 /* TSDKDUMP */
+#define EXPRESS_IOCTL_SMP 0x450A /* IOCTL_SMP */
+#define EXPRESS_CSMI 0x450B /* CSMI */
+#define EXPRESS_IOCTL_HBA 0x450C /* IOCTL_HBA */
+#define EXPRESS_IOCTL_VDA 0x450D /* IOCTL_VDA */
+#define EXPRESS_IOCTL_GET_ID 0x450E /* GET_ID */
+#define EXPRESS_IOCTL_GET_MOD_INFO 0x450F /* MODULE_INFO */
+#define EXPRESS_IOCTL_MAX 0x450F
+
+#endif
--
1.8.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v4 08/10] SCSI: esas2r: Add IOCTL functions
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
` (6 preceding siblings ...)
2013-08-23 14:35 ` [PATCH v4 07/10] SCSI: esas2r: Add IOCTL header file Bradley Grove
@ 2013-08-23 14:35 ` Bradley Grove
2013-08-23 14:35 ` [PATCH v4 09/10] SCSI: esas2r: Add ATTO VDA Firmware API headers and functions. This API is used to control and manage the RAID adapter Bradley Grove
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Bradley Grove @ 2013-08-23 14:35 UTC (permalink / raw)
To: linux-scsi, jbottomley; +Cc: jseba, Bradley Grove
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
drivers/scsi/esas2r/esas2r_ioctl.c | 2110 ++++++++++++++++++++++++++++++++++++
1 file changed, 2110 insertions(+)
create mode 100644 drivers/scsi/esas2r/esas2r_ioctl.c
diff --git a/drivers/scsi/esas2r/esas2r_ioctl.c b/drivers/scsi/esas2r/esas2r_ioctl.c
new file mode 100644
index 0000000..f3d0cb8
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_ioctl.c
@@ -0,0 +1,2110 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r_ioctl.c
+ * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
+#include "esas2r.h"
+
+/*
+ * Buffered ioctl handlers. A buffered ioctl is one which requires that we
+ * allocate a DMA-able memory area to communicate with the firmware. In
+ * order to prevent continually allocating and freeing consistent memory,
+ * we will allocate a global buffer the first time we need it and re-use
+ * it for subsequent ioctl calls that require it.
+ */
+
+u8 *esas2r_buffered_ioctl;
+dma_addr_t esas2r_buffered_ioctl_addr;
+u32 esas2r_buffered_ioctl_size;
+struct pci_dev *esas2r_buffered_ioctl_pcid;
+
+static DEFINE_SEMAPHORE(buffered_ioctl_semaphore);
+typedef int (*BUFFERED_IOCTL_CALLBACK)(struct esas2r_adapter *,
+ struct esas2r_request *,
+ struct esas2r_sg_context *,
+ void *);
+typedef void (*BUFFERED_IOCTL_DONE_CALLBACK)(struct esas2r_adapter *,
+ struct esas2r_request *, void *);
+
+struct esas2r_buffered_ioctl {
+ struct esas2r_adapter *a;
+ void *ioctl;
+ u32 length;
+ u32 control_code;
+ u32 offset;
+ BUFFERED_IOCTL_CALLBACK
+ callback;
+ void *context;
+ BUFFERED_IOCTL_DONE_CALLBACK
+ done_callback;
+ void *done_context;
+
+};
+
+static void complete_fm_api_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ a->fm_api_command_done = 1;
+ wake_up_interruptible(&a->fm_api_waiter);
+}
+
+/* Callbacks for building scatter/gather lists for FM API requests */
+static u32 get_physaddr_fm_api(struct esas2r_sg_context *sgc, u64 *addr)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
+ int offset = sgc->cur_offset - a->save_offset;
+
+ (*addr) = a->firmware.phys + offset;
+ return a->firmware.orig_len - offset;
+}
+
+static u32 get_physaddr_fm_api_header(struct esas2r_sg_context *sgc, u64 *addr)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
+ int offset = sgc->cur_offset - a->save_offset;
+
+ (*addr) = a->firmware.header_buff_phys + offset;
+ return sizeof(struct esas2r_flash_img) - offset;
+}
+
+/* Handle EXPRESS_IOCTL_RW_FIRMWARE ioctl with img_type = FW_IMG_FM_API. */
+static void do_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi)
+{
+ struct esas2r_request *rq;
+
+ if (down_interruptible(&a->fm_api_semaphore)) {
+ fi->status = FI_STAT_BUSY;
+ return;
+ }
+
+ rq = esas2r_alloc_request(a);
+ if (rq == NULL) {
+ up(&a->fm_api_semaphore);
+ fi->status = FI_STAT_BUSY;
+ return;
+ }
+
+ if (fi == &a->firmware.header) {
+ a->firmware.header_buff = dma_alloc_coherent(&a->pcid->dev,
+ (size_t)sizeof(
+ struct
+ esas2r_flash_img),
+ (dma_addr_t *)&a->
+ firmware.
+ header_buff_phys,
+ GFP_KERNEL);
+
+ if (a->firmware.header_buff == NULL) {
+ esas2r_debug("failed to allocate header buffer!");
+ fi->status = FI_STAT_BUSY;
+ return;
+ }
+
+ memcpy(a->firmware.header_buff, fi,
+ sizeof(struct esas2r_flash_img));
+ a->save_offset = a->firmware.header_buff;
+ a->fm_api_sgc.get_phys_addr =
+ (PGETPHYSADDR)get_physaddr_fm_api_header;
+ } else {
+ a->save_offset = (u8 *)fi;
+ a->fm_api_sgc.get_phys_addr =
+ (PGETPHYSADDR)get_physaddr_fm_api;
+ }
+
+ rq->comp_cb = complete_fm_api_req;
+ a->fm_api_command_done = 0;
+ a->fm_api_sgc.cur_offset = a->save_offset;
+
+ if (!esas2r_fm_api(a, (struct esas2r_flash_img *)a->save_offset, rq,
+ &a->fm_api_sgc))
+ goto all_done;
+
+ /* Now wait around for it to complete. */
+ while (!a->fm_api_command_done)
+ wait_event_interruptible(a->fm_api_waiter,
+ a->fm_api_command_done);
+all_done:
+ if (fi == &a->firmware.header) {
+ memcpy(fi, a->firmware.header_buff,
+ sizeof(struct esas2r_flash_img));
+
+ dma_free_coherent(&a->pcid->dev,
+ (size_t)sizeof(struct esas2r_flash_img),
+ a->firmware.header_buff,
+ (dma_addr_t)a->firmware.header_buff_phys);
+ }
+
+ up(&a->fm_api_semaphore);
+ esas2r_free_request(a, (struct esas2r_request *)rq);
+ return;
+
+}
+
+static void complete_nvr_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ a->nvram_command_done = 1;
+ wake_up_interruptible(&a->nvram_waiter);
+}
+
+/* Callback for building scatter/gather lists for buffered ioctls */
+static u32 get_physaddr_buffered_ioctl(struct esas2r_sg_context *sgc,
+ u64 *addr)
+{
+ int offset = (u8 *)sgc->cur_offset - esas2r_buffered_ioctl;
+
+ (*addr) = esas2r_buffered_ioctl_addr + offset;
+ return esas2r_buffered_ioctl_size - offset;
+}
+
+static void complete_buffered_ioctl_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ a->buffered_ioctl_done = 1;
+ wake_up_interruptible(&a->buffered_ioctl_waiter);
+}
+
+static u8 handle_buffered_ioctl(struct esas2r_buffered_ioctl *bi)
+{
+ struct esas2r_adapter *a = bi->a;
+ struct esas2r_request *rq;
+ struct esas2r_sg_context sgc;
+ u8 result = IOCTL_SUCCESS;
+
+ if (down_interruptible(&buffered_ioctl_semaphore))
+ return IOCTL_OUT_OF_RESOURCES;
+
+ /* allocate a buffer or use the existing buffer. */
+ if (esas2r_buffered_ioctl) {
+ if (esas2r_buffered_ioctl_size < bi->length) {
+ /* free the too-small buffer and get a new one */
+ dma_free_coherent(&a->pcid->dev,
+ (size_t)esas2r_buffered_ioctl_size,
+ esas2r_buffered_ioctl,
+ esas2r_buffered_ioctl_addr);
+
+ goto allocate_buffer;
+ }
+ } else {
+allocate_buffer:
+ esas2r_buffered_ioctl_size = bi->length;
+ esas2r_buffered_ioctl_pcid = a->pcid;
+ esas2r_buffered_ioctl = dma_alloc_coherent(&a->pcid->dev,
+ (size_t)
+ esas2r_buffered_ioctl_size,
+ &
+ esas2r_buffered_ioctl_addr,
+ GFP_KERNEL);
+ }
+
+ if (!esas2r_buffered_ioctl) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "could not allocate %d bytes of consistent memory "
+ "for a buffered ioctl!",
+ bi->length);
+
+ esas2r_debug("buffered ioctl alloc failure");
+ result = IOCTL_OUT_OF_RESOURCES;
+ goto exit_cleanly;
+ }
+
+ memcpy(esas2r_buffered_ioctl, bi->ioctl, bi->length);
+
+ rq = esas2r_alloc_request(a);
+ if (rq == NULL) {
+ esas2r_log(ESAS2R_LOG_CRIT,
+ "could not allocate an internal request");
+
+ result = IOCTL_OUT_OF_RESOURCES;
+ esas2r_debug("buffered ioctl - no requests");
+ goto exit_cleanly;
+ }
+
+ a->buffered_ioctl_done = 0;
+ rq->comp_cb = complete_buffered_ioctl_req;
+ sgc.cur_offset = esas2r_buffered_ioctl + bi->offset;
+ sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_buffered_ioctl;
+ sgc.length = esas2r_buffered_ioctl_size;
+
+ if (!(*bi->callback)(a, rq, &sgc, bi->context)) {
+ /* completed immediately, no need to wait */
+ a->buffered_ioctl_done = 0;
+ goto free_andexit_cleanly;
+ }
+
+ /* now wait around for it to complete. */
+ while (!a->buffered_ioctl_done)
+ wait_event_interruptible(a->buffered_ioctl_waiter,
+ a->buffered_ioctl_done);
+
+free_andexit_cleanly:
+ if (result == IOCTL_SUCCESS && bi->done_callback)
+ (*bi->done_callback)(a, rq, bi->done_context);
+
+ esas2r_free_request(a, rq);
+
+exit_cleanly:
+ if (result == IOCTL_SUCCESS)
+ memcpy(bi->ioctl, esas2r_buffered_ioctl, bi->length);
+
+ up(&buffered_ioctl_semaphore);
+ return result;
+}
+
+/* SMP ioctl support */
+static int smp_ioctl_callback(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ struct esas2r_sg_context *sgc, void *context)
+{
+ struct atto_ioctl_smp *si =
+ (struct atto_ioctl_smp *)esas2r_buffered_ioctl;
+
+ esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge);
+ esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_SMP);
+
+ if (!esas2r_build_sg_list(a, rq, sgc)) {
+ si->status = ATTO_STS_OUT_OF_RSRC;
+ return false;
+ }
+
+ esas2r_start_request(a, rq);
+ return true;
+}
+
+static u8 handle_smp_ioctl(struct esas2r_adapter *a, struct atto_ioctl_smp *si)
+{
+ struct esas2r_buffered_ioctl bi;
+
+ memset(&bi, 0, sizeof(bi));
+
+ bi.a = a;
+ bi.ioctl = si;
+ bi.length = sizeof(struct atto_ioctl_smp)
+ + le32_to_cpu(si->req_length)
+ + le32_to_cpu(si->rsp_length);
+ bi.offset = 0;
+ bi.callback = smp_ioctl_callback;
+ return handle_buffered_ioctl(&bi);
+}
+
+
+/* CSMI ioctl support */
+static void esas2r_csmi_ioctl_tunnel_comp_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ rq->target_id = le16_to_cpu(rq->func_rsp.ioctl_rsp.csmi.target_id);
+ rq->vrq->scsi.flags |= cpu_to_le32(rq->func_rsp.ioctl_rsp.csmi.lun);
+
+ /* Now call the original completion callback. */
+ (*rq->aux_req_cb)(a, rq);
+}
+
+/* Tunnel a CSMI IOCTL to the back end driver for processing. */
+static bool csmi_ioctl_tunnel(struct esas2r_adapter *a,
+ union atto_ioctl_csmi *ci,
+ struct esas2r_request *rq,
+ struct esas2r_sg_context *sgc,
+ u32 ctrl_code,
+ u16 target_id)
+{
+ struct atto_vda_ioctl_req *ioctl = &rq->vrq->ioctl;
+
+ if (a->flags & AF_DEGRADED_MODE)
+ return false;
+
+ esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge);
+ esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_CSMI);
+ ioctl->csmi.ctrl_code = cpu_to_le32(ctrl_code);
+ ioctl->csmi.target_id = cpu_to_le16(target_id);
+ ioctl->csmi.lun = (u8)le32_to_cpu(rq->vrq->scsi.flags);
+
+ /*
+ * Always usurp the completion callback since the interrupt callback
+ * mechanism may be used.
+ */
+ rq->aux_req_cx = ci;
+ rq->aux_req_cb = rq->comp_cb;
+ rq->comp_cb = esas2r_csmi_ioctl_tunnel_comp_cb;
+
+ if (!esas2r_build_sg_list(a, rq, sgc))
+ return false;
+
+ esas2r_start_request(a, rq);
+ return true;
+}
+
+static bool check_lun(struct scsi_lun lun)
+{
+ bool result;
+
+ result = ((lun.scsi_lun[7] == 0) &&
+ (lun.scsi_lun[6] == 0) &&
+ (lun.scsi_lun[5] == 0) &&
+ (lun.scsi_lun[4] == 0) &&
+ (lun.scsi_lun[3] == 0) &&
+ (lun.scsi_lun[2] == 0) &&
+/* Byte 1 is intentionally skipped */
+ (lun.scsi_lun[0] == 0));
+
+ return result;
+}
+
+static int csmi_ioctl_callback(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ struct esas2r_sg_context *sgc, void *context)
+{
+ struct atto_csmi *ci = (struct atto_csmi *)context;
+ union atto_ioctl_csmi *ioctl_csmi =
+ (union atto_ioctl_csmi *)esas2r_buffered_ioctl;
+ u8 path = 0;
+ u8 tid = 0;
+ u8 lun = 0;
+ u32 sts = CSMI_STS_SUCCESS;
+ struct esas2r_target *t;
+ unsigned long flags;
+
+ if (ci->control_code == CSMI_CC_GET_DEV_ADDR) {
+ struct atto_csmi_get_dev_addr *gda = &ci->data.dev_addr;
+
+ path = gda->path_id;
+ tid = gda->target_id;
+ lun = gda->lun;
+ } else if (ci->control_code == CSMI_CC_TASK_MGT) {
+ struct atto_csmi_task_mgmt *tm = &ci->data.tsk_mgt;
+
+ path = tm->path_id;
+ tid = tm->target_id;
+ lun = tm->lun;
+ }
+
+ if (path > 0 || tid > ESAS2R_MAX_ID) {
+ rq->func_rsp.ioctl_rsp.csmi.csmi_status = cpu_to_le32(
+ CSMI_STS_INV_PARAM);
+ return false;
+ }
+
+ rq->target_id = tid;
+ rq->vrq->scsi.flags |= cpu_to_le32(lun);
+
+ switch (ci->control_code) {
+ case CSMI_CC_GET_DRVR_INFO:
+ {
+ struct atto_csmi_get_driver_info *gdi = &ioctl_csmi->drvr_info;
+
+ strcpy(gdi->description, esas2r_get_model_name(a));
+ gdi->csmi_major_rev = CSMI_MAJOR_REV;
+ gdi->csmi_minor_rev = CSMI_MINOR_REV;
+ break;
+ }
+
+ case CSMI_CC_GET_CNTLR_CFG:
+ {
+ struct atto_csmi_get_cntlr_cfg *gcc = &ioctl_csmi->cntlr_cfg;
+
+ gcc->base_io_addr = 0;
+ pci_read_config_dword(a->pcid, PCI_BASE_ADDRESS_2,
+ &gcc->base_memaddr_lo);
+ pci_read_config_dword(a->pcid, PCI_BASE_ADDRESS_3,
+ &gcc->base_memaddr_hi);
+ gcc->board_id = MAKEDWORD(a->pcid->subsystem_device,
+ a->pcid->subsystem_vendor);
+ gcc->slot_num = CSMI_SLOT_NUM_UNKNOWN;
+ gcc->cntlr_class = CSMI_CNTLR_CLASS_HBA;
+ gcc->io_bus_type = CSMI_BUS_TYPE_PCI;
+ gcc->pci_addr.bus_num = a->pcid->bus->number;
+ gcc->pci_addr.device_num = PCI_SLOT(a->pcid->devfn);
+ gcc->pci_addr.function_num = PCI_FUNC(a->pcid->devfn);
+
+ memset(gcc->serial_num, 0, sizeof(gcc->serial_num));
+
+ gcc->major_rev = LOBYTE(LOWORD(a->fw_version));
+ gcc->minor_rev = HIBYTE(LOWORD(a->fw_version));
+ gcc->build_rev = LOBYTE(HIWORD(a->fw_version));
+ gcc->release_rev = HIBYTE(HIWORD(a->fw_version));
+ gcc->bios_major_rev = HIBYTE(HIWORD(a->flash_ver));
+ gcc->bios_minor_rev = LOBYTE(HIWORD(a->flash_ver));
+ gcc->bios_build_rev = LOWORD(a->flash_ver);
+
+ if (a->flags2 & AF2_THUNDERLINK)
+ gcc->cntlr_flags = CSMI_CNTLRF_SAS_HBA
+ | CSMI_CNTLRF_SATA_HBA;
+ else
+ gcc->cntlr_flags = CSMI_CNTLRF_SAS_RAID
+ | CSMI_CNTLRF_SATA_RAID;
+
+ gcc->rrom_major_rev = 0;
+ gcc->rrom_minor_rev = 0;
+ gcc->rrom_build_rev = 0;
+ gcc->rrom_release_rev = 0;
+ gcc->rrom_biosmajor_rev = 0;
+ gcc->rrom_biosminor_rev = 0;
+ gcc->rrom_biosbuild_rev = 0;
+ gcc->rrom_biosrelease_rev = 0;
+ break;
+ }
+
+ case CSMI_CC_GET_CNTLR_STS:
+ {
+ struct atto_csmi_get_cntlr_sts *gcs = &ioctl_csmi->cntlr_sts;
+
+ if (a->flags & AF_DEGRADED_MODE)
+ gcs->status = CSMI_CNTLR_STS_FAILED;
+ else
+ gcs->status = CSMI_CNTLR_STS_GOOD;
+
+ gcs->offline_reason = CSMI_OFFLINE_NO_REASON;
+ break;
+ }
+
+ case CSMI_CC_FW_DOWNLOAD:
+ case CSMI_CC_GET_RAID_INFO:
+ case CSMI_CC_GET_RAID_CFG:
+
+ sts = CSMI_STS_BAD_CTRL_CODE;
+ break;
+
+ case CSMI_CC_SMP_PASSTHRU:
+ case CSMI_CC_SSP_PASSTHRU:
+ case CSMI_CC_STP_PASSTHRU:
+ case CSMI_CC_GET_PHY_INFO:
+ case CSMI_CC_SET_PHY_INFO:
+ case CSMI_CC_GET_LINK_ERRORS:
+ case CSMI_CC_GET_SATA_SIG:
+ case CSMI_CC_GET_CONN_INFO:
+ case CSMI_CC_PHY_CTRL:
+
+ if (!csmi_ioctl_tunnel(a, ioctl_csmi, rq, sgc,
+ ci->control_code,
+ ESAS2R_TARG_ID_INV)) {
+ sts = CSMI_STS_FAILED;
+ break;
+ }
+
+ return true;
+
+ case CSMI_CC_GET_SCSI_ADDR:
+ {
+ struct atto_csmi_get_scsi_addr *gsa = &ioctl_csmi->scsi_addr;
+
+ struct scsi_lun lun;
+
+ memcpy(&lun, gsa->sas_lun, sizeof(struct scsi_lun));
+
+ if (!check_lun(lun)) {
+ sts = CSMI_STS_NO_SCSI_ADDR;
+ break;
+ }
+
+ /* make sure the device is present */
+ spin_lock_irqsave(&a->mem_lock, flags);
+ t = esas2r_targ_db_find_by_sas_addr(a, (u64 *)gsa->sas_addr);
+ spin_unlock_irqrestore(&a->mem_lock, flags);
+
+ if (t == NULL) {
+ sts = CSMI_STS_NO_SCSI_ADDR;
+ break;
+ }
+
+ gsa->host_index = 0xFF;
+ gsa->lun = gsa->sas_lun[1];
+ rq->target_id = esas2r_targ_get_id(t, a);
+ break;
+ }
+
+ case CSMI_CC_GET_DEV_ADDR:
+ {
+ struct atto_csmi_get_dev_addr *gda = &ioctl_csmi->dev_addr;
+
+ /* make sure the target is present */
+ t = a->targetdb + rq->target_id;
+
+ if (t >= a->targetdb_end
+ || t->target_state != TS_PRESENT
+ || t->sas_addr == 0) {
+ sts = CSMI_STS_NO_DEV_ADDR;
+ break;
+ }
+
+ /* fill in the result */
+ *(u64 *)gda->sas_addr = t->sas_addr;
+ memset(gda->sas_lun, 0, sizeof(gda->sas_lun));
+ gda->sas_lun[1] = (u8)le32_to_cpu(rq->vrq->scsi.flags);
+ break;
+ }
+
+ case CSMI_CC_TASK_MGT:
+
+ /* make sure the target is present */
+ t = a->targetdb + rq->target_id;
+
+ if (t >= a->targetdb_end
+ || t->target_state != TS_PRESENT
+ || !(t->flags & TF_PASS_THRU)) {
+ sts = CSMI_STS_NO_DEV_ADDR;
+ break;
+ }
+
+ if (!csmi_ioctl_tunnel(a, ioctl_csmi, rq, sgc,
+ ci->control_code,
+ t->phys_targ_id)) {
+ sts = CSMI_STS_FAILED;
+ break;
+ }
+
+ return true;
+
+ default:
+
+ sts = CSMI_STS_BAD_CTRL_CODE;
+ break;
+ }
+
+ rq->func_rsp.ioctl_rsp.csmi.csmi_status = cpu_to_le32(sts);
+
+ return false;
+}
+
+
+static void csmi_ioctl_done_callback(struct esas2r_adapter *a,
+ struct esas2r_request *rq, void *context)
+{
+ struct atto_csmi *ci = (struct atto_csmi *)context;
+ union atto_ioctl_csmi *ioctl_csmi =
+ (union atto_ioctl_csmi *)esas2r_buffered_ioctl;
+
+ switch (ci->control_code) {
+ case CSMI_CC_GET_DRVR_INFO:
+ {
+ struct atto_csmi_get_driver_info *gdi =
+ &ioctl_csmi->drvr_info;
+
+ strcpy(gdi->name, ESAS2R_VERSION_STR);
+
+ gdi->major_rev = ESAS2R_MAJOR_REV;
+ gdi->minor_rev = ESAS2R_MINOR_REV;
+ gdi->build_rev = 0;
+ gdi->release_rev = 0;
+ break;
+ }
+
+ case CSMI_CC_GET_SCSI_ADDR:
+ {
+ struct atto_csmi_get_scsi_addr *gsa = &ioctl_csmi->scsi_addr;
+
+ if (le32_to_cpu(rq->func_rsp.ioctl_rsp.csmi.csmi_status) ==
+ CSMI_STS_SUCCESS) {
+ gsa->target_id = rq->target_id;
+ gsa->path_id = 0;
+ }
+
+ break;
+ }
+ }
+
+ ci->status = le32_to_cpu(rq->func_rsp.ioctl_rsp.csmi.csmi_status);
+}
+
+
+static u8 handle_csmi_ioctl(struct esas2r_adapter *a, struct atto_csmi *ci)
+{
+ struct esas2r_buffered_ioctl bi;
+
+ memset(&bi, 0, sizeof(bi));
+
+ bi.a = a;
+ bi.ioctl = &ci->data;
+ bi.length = sizeof(union atto_ioctl_csmi);
+ bi.offset = 0;
+ bi.callback = csmi_ioctl_callback;
+ bi.context = ci;
+ bi.done_callback = csmi_ioctl_done_callback;
+ bi.done_context = ci;
+
+ return handle_buffered_ioctl(&bi);
+}
+
+/* ATTO HBA ioctl support */
+
+/* Tunnel an ATTO HBA IOCTL to the back end driver for processing. */
+static bool hba_ioctl_tunnel(struct esas2r_adapter *a,
+ struct atto_ioctl *hi,
+ struct esas2r_request *rq,
+ struct esas2r_sg_context *sgc)
+{
+ esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge);
+
+ esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_HBA);
+
+ if (!esas2r_build_sg_list(a, rq, sgc)) {
+ hi->status = ATTO_STS_OUT_OF_RSRC;
+
+ return false;
+ }
+
+ esas2r_start_request(a, rq);
+
+ return true;
+}
+
+static void scsi_passthru_comp_cb(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct atto_ioctl *hi = (struct atto_ioctl *)rq->aux_req_cx;
+ struct atto_hba_scsi_pass_thru *spt = &hi->data.scsi_pass_thru;
+ u8 sts = ATTO_SPT_RS_FAILED;
+
+ spt->scsi_status = rq->func_rsp.scsi_rsp.scsi_stat;
+ spt->sense_length = rq->sense_len;
+ spt->residual_length =
+ le32_to_cpu(rq->func_rsp.scsi_rsp.residual_length);
+
+ switch (rq->req_stat) {
+ case RS_SUCCESS:
+ case RS_SCSI_ERROR:
+ sts = ATTO_SPT_RS_SUCCESS;
+ break;
+ case RS_UNDERRUN:
+ sts = ATTO_SPT_RS_UNDERRUN;
+ break;
+ case RS_OVERRUN:
+ sts = ATTO_SPT_RS_OVERRUN;
+ break;
+ case RS_SEL:
+ case RS_SEL2:
+ sts = ATTO_SPT_RS_NO_DEVICE;
+ break;
+ case RS_NO_LUN:
+ sts = ATTO_SPT_RS_NO_LUN;
+ break;
+ case RS_TIMEOUT:
+ sts = ATTO_SPT_RS_TIMEOUT;
+ break;
+ case RS_DEGRADED:
+ sts = ATTO_SPT_RS_DEGRADED;
+ break;
+ case RS_BUSY:
+ sts = ATTO_SPT_RS_BUSY;
+ break;
+ case RS_ABORTED:
+ sts = ATTO_SPT_RS_ABORTED;
+ break;
+ case RS_RESET:
+ sts = ATTO_SPT_RS_BUS_RESET;
+ break;
+ }
+
+ spt->req_status = sts;
+
+ /* Update the target ID to the next one present. */
+ spt->target_id =
+ esas2r_targ_db_find_next_present(a, (u16)spt->target_id);
+
+ /* Done, call the completion callback. */
+ (*rq->aux_req_cb)(a, rq);
+}
+
+static int hba_ioctl_callback(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ struct esas2r_sg_context *sgc,
+ void *context)
+{
+ struct atto_ioctl *hi = (struct atto_ioctl *)esas2r_buffered_ioctl;
+
+ hi->status = ATTO_STS_SUCCESS;
+
+ switch (hi->function) {
+ case ATTO_FUNC_GET_ADAP_INFO:
+ {
+ u8 *class_code = (u8 *)&a->pcid->class;
+
+ struct atto_hba_get_adapter_info *gai =
+ &hi->data.get_adap_info;
+ int pcie_cap_reg;
+
+ if (hi->flags & HBAF_TUNNEL) {
+ hi->status = ATTO_STS_UNSUPPORTED;
+ break;
+ }
+
+ if (hi->version > ATTO_VER_GET_ADAP_INFO0) {
+ hi->status = ATTO_STS_INV_VERSION;
+ hi->version = ATTO_VER_GET_ADAP_INFO0;
+ break;
+ }
+
+ memset(gai, 0, sizeof(*gai));
+
+ gai->pci.vendor_id = a->pcid->vendor;
+ gai->pci.device_id = a->pcid->device;
+ gai->pci.ss_vendor_id = a->pcid->subsystem_vendor;
+ gai->pci.ss_device_id = a->pcid->subsystem_device;
+ gai->pci.class_code[0] = class_code[0];
+ gai->pci.class_code[1] = class_code[1];
+ gai->pci.class_code[2] = class_code[2];
+ gai->pci.rev_id = a->pcid->revision;
+ gai->pci.bus_num = a->pcid->bus->number;
+ gai->pci.dev_num = PCI_SLOT(a->pcid->devfn);
+ gai->pci.func_num = PCI_FUNC(a->pcid->devfn);
+
+ pcie_cap_reg = pci_find_capability(a->pcid, PCI_CAP_ID_EXP);
+ if (pcie_cap_reg) {
+ u16 stat;
+ u32 caps;
+
+ pci_read_config_word(a->pcid,
+ pcie_cap_reg + PCI_EXP_LNKSTA,
+ &stat);
+ pci_read_config_dword(a->pcid,
+ pcie_cap_reg + PCI_EXP_LNKCAP,
+ &caps);
+
+ gai->pci.link_speed_curr =
+ (u8)(stat & PCI_EXP_LNKSTA_CLS);
+ gai->pci.link_speed_max =
+ (u8)(caps & PCI_EXP_LNKCAP_SLS);
+ gai->pci.link_width_curr =
+ (u8)((stat & PCI_EXP_LNKSTA_NLW)
+ >> PCI_EXP_LNKSTA_NLW_SHIFT);
+ gai->pci.link_width_max =
+ (u8)((caps & PCI_EXP_LNKCAP_MLW)
+ >> 4);
+ }
+
+ gai->pci.msi_vector_cnt = 1;
+
+ if (a->pcid->msix_enabled)
+ gai->pci.interrupt_mode = ATTO_GAI_PCIIM_MSIX;
+ else if (a->pcid->msi_enabled)
+ gai->pci.interrupt_mode = ATTO_GAI_PCIIM_MSI;
+ else
+ gai->pci.interrupt_mode = ATTO_GAI_PCIIM_LEGACY;
+
+ gai->adap_type = ATTO_GAI_AT_ESASRAID2;
+
+ if (a->flags2 & AF2_THUNDERLINK)
+ gai->adap_type = ATTO_GAI_AT_TLSASHBA;
+
+ if (a->flags & AF_DEGRADED_MODE)
+ gai->adap_flags |= ATTO_GAI_AF_DEGRADED;
+
+ gai->adap_flags |= ATTO_GAI_AF_SPT_SUPP |
+ ATTO_GAI_AF_DEVADDR_SUPP;
+
+ if (a->pcid->subsystem_device == ATTO_ESAS_R60F
+ || a->pcid->subsystem_device == ATTO_ESAS_R608
+ || a->pcid->subsystem_device == ATTO_ESAS_R644
+ || a->pcid->subsystem_device == ATTO_TSSC_3808E)
+ gai->adap_flags |= ATTO_GAI_AF_VIRT_SES;
+
+ gai->num_ports = ESAS2R_NUM_PHYS;
+ gai->num_phys = ESAS2R_NUM_PHYS;
+
+ strcpy(gai->firmware_rev, a->fw_rev);
+ strcpy(gai->flash_rev, a->flash_rev);
+ strcpy(gai->model_name_short, esas2r_get_model_name_short(a));
+ strcpy(gai->model_name, esas2r_get_model_name(a));
+
+ gai->num_targets = ESAS2R_MAX_TARGETS;
+
+ gai->num_busses = 1;
+ gai->num_targsper_bus = gai->num_targets;
+ gai->num_lunsper_targ = 256;
+
+ if (a->pcid->subsystem_device == ATTO_ESAS_R6F0
+ || a->pcid->subsystem_device == ATTO_ESAS_R60F)
+ gai->num_connectors = 4;
+ else
+ gai->num_connectors = 2;
+
+ gai->adap_flags2 |= ATTO_GAI_AF2_ADAP_CTRL_SUPP;
+
+ gai->num_targets_backend = a->num_targets_backend;
+
+ gai->tunnel_flags = a->ioctl_tunnel
+ & (ATTO_GAI_TF_MEM_RW
+ | ATTO_GAI_TF_TRACE
+ | ATTO_GAI_TF_SCSI_PASS_THRU
+ | ATTO_GAI_TF_GET_DEV_ADDR
+ | ATTO_GAI_TF_PHY_CTRL
+ | ATTO_GAI_TF_CONN_CTRL
+ | ATTO_GAI_TF_GET_DEV_INFO);
+ break;
+ }
+
+ case ATTO_FUNC_GET_ADAP_ADDR:
+ {
+ struct atto_hba_get_adapter_address *gaa =
+ &hi->data.get_adap_addr;
+
+ if (hi->flags & HBAF_TUNNEL) {
+ hi->status = ATTO_STS_UNSUPPORTED;
+ break;
+ }
+
+ if (hi->version > ATTO_VER_GET_ADAP_ADDR0) {
+ hi->status = ATTO_STS_INV_VERSION;
+ hi->version = ATTO_VER_GET_ADAP_ADDR0;
+ } else if (gaa->addr_type == ATTO_GAA_AT_PORT
+ || gaa->addr_type == ATTO_GAA_AT_NODE) {
+ if (gaa->addr_type == ATTO_GAA_AT_PORT
+ && gaa->port_id >= ESAS2R_NUM_PHYS) {
+ hi->status = ATTO_STS_NOT_APPL;
+ } else {
+ memcpy((u64 *)gaa->address,
+ &a->nvram->sas_addr[0], sizeof(u64));
+ gaa->addr_len = sizeof(u64);
+ }
+ } else {
+ hi->status = ATTO_STS_INV_PARAM;
+ }
+
+ break;
+ }
+
+ case ATTO_FUNC_MEM_RW:
+ {
+ if (hi->flags & HBAF_TUNNEL) {
+ if (hba_ioctl_tunnel(a, hi, rq, sgc))
+ return true;
+
+ break;
+ }
+
+ hi->status = ATTO_STS_UNSUPPORTED;
+
+ break;
+ }
+
+ case ATTO_FUNC_TRACE:
+ {
+ struct atto_hba_trace *trc = &hi->data.trace;
+
+ if (hi->flags & HBAF_TUNNEL) {
+ if (hba_ioctl_tunnel(a, hi, rq, sgc))
+ return true;
+
+ break;
+ }
+
+ if (hi->version > ATTO_VER_TRACE1) {
+ hi->status = ATTO_STS_INV_VERSION;
+ hi->version = ATTO_VER_TRACE1;
+ break;
+ }
+
+ if (trc->trace_type == ATTO_TRC_TT_FWCOREDUMP
+ && hi->version >= ATTO_VER_TRACE1) {
+ if (trc->trace_func == ATTO_TRC_TF_UPLOAD) {
+ u32 len = hi->data_length;
+ u32 offset = trc->current_offset;
+ u32 total_len = ESAS2R_FWCOREDUMP_SZ;
+
+ /* Size is zero if a core dump isn't present */
+ if (!(a->flags2 & AF2_COREDUMP_SAVED))
+ total_len = 0;
+
+ if (len > total_len)
+ len = total_len;
+
+ if (offset >= total_len
+ || offset + len > total_len
+ || len == 0) {
+ hi->status = ATTO_STS_INV_PARAM;
+ break;
+ }
+
+ memcpy(trc + 1,
+ a->fw_coredump_buff + offset,
+ len);
+
+ hi->data_length = len;
+ } else if (trc->trace_func == ATTO_TRC_TF_RESET) {
+ memset(a->fw_coredump_buff, 0,
+ ESAS2R_FWCOREDUMP_SZ);
+
+ esas2r_lock_clear_flags(&a->flags2,
+ AF2_COREDUMP_SAVED);
+ } else if (trc->trace_func != ATTO_TRC_TF_GET_INFO) {
+ hi->status = ATTO_STS_UNSUPPORTED;
+ break;
+ }
+
+ /* Always return all the info we can. */
+ trc->trace_mask = 0;
+ trc->current_offset = 0;
+ trc->total_length = ESAS2R_FWCOREDUMP_SZ;
+
+ /* Return zero length buffer if core dump not present */
+ if (!(a->flags2 & AF2_COREDUMP_SAVED))
+ trc->total_length = 0;
+ } else {
+ hi->status = ATTO_STS_UNSUPPORTED;
+ }
+
+ break;
+ }
+
+ case ATTO_FUNC_SCSI_PASS_THRU:
+ {
+ struct atto_hba_scsi_pass_thru *spt = &hi->data.scsi_pass_thru;
+ struct scsi_lun lun;
+
+ memcpy(&lun, spt->lun, sizeof(struct scsi_lun));
+
+ if (hi->flags & HBAF_TUNNEL) {
+ if (hba_ioctl_tunnel(a, hi, rq, sgc))
+ return true;
+
+ break;
+ }
+
+ if (hi->version > ATTO_VER_SCSI_PASS_THRU0) {
+ hi->status = ATTO_STS_INV_VERSION;
+ hi->version = ATTO_VER_SCSI_PASS_THRU0;
+ break;
+ }
+
+ if (spt->target_id >= ESAS2R_MAX_TARGETS || !check_lun(lun)) {
+ hi->status = ATTO_STS_INV_PARAM;
+ break;
+ }
+
+ esas2r_sgc_init(sgc, a, rq, NULL);
+
+ sgc->length = hi->data_length;
+ sgc->cur_offset += offsetof(struct atto_ioctl, data.byte)
+ + sizeof(struct atto_hba_scsi_pass_thru);
+
+ /* Finish request initialization */
+ rq->target_id = (u16)spt->target_id;
+ rq->vrq->scsi.flags |= cpu_to_le32(spt->lun[1]);
+ memcpy(rq->vrq->scsi.cdb, spt->cdb, 16);
+ rq->vrq->scsi.length = cpu_to_le32(hi->data_length);
+ rq->sense_len = spt->sense_length;
+ rq->sense_buf = (u8 *)spt->sense_data;
+ /* NOTE: we ignore spt->timeout */
+
+ /*
+ * always usurp the completion callback since the interrupt
+ * callback mechanism may be used.
+ */
+
+ rq->aux_req_cx = hi;
+ rq->aux_req_cb = rq->comp_cb;
+ rq->comp_cb = scsi_passthru_comp_cb;
+
+ if (spt->flags & ATTO_SPTF_DATA_IN) {
+ rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_RDD);
+ } else if (spt->flags & ATTO_SPTF_DATA_OUT) {
+ rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_WRD);
+ } else {
+ if (sgc->length) {
+ hi->status = ATTO_STS_INV_PARAM;
+ break;
+ }
+ }
+
+ if (spt->flags & ATTO_SPTF_ORDERED_Q)
+ rq->vrq->scsi.flags |=
+ cpu_to_le32(FCP_CMND_TA_ORDRD_Q);
+ else if (spt->flags & ATTO_SPTF_HEAD_OF_Q)
+ rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_TA_HEAD_Q);
+
+ if (!esas2r_build_sg_list(a, rq, sgc)) {
+ hi->status = ATTO_STS_OUT_OF_RSRC;
+ break;
+ }
+
+ esas2r_start_request(a, rq);
+
+ return true;
+ }
+
+ case ATTO_FUNC_GET_DEV_ADDR:
+ {
+ struct atto_hba_get_device_address *gda =
+ &hi->data.get_dev_addr;
+ struct esas2r_target *t;
+
+ if (hi->flags & HBAF_TUNNEL) {
+ if (hba_ioctl_tunnel(a, hi, rq, sgc))
+ return true;
+
+ break;
+ }
+
+ if (hi->version > ATTO_VER_GET_DEV_ADDR0) {
+ hi->status = ATTO_STS_INV_VERSION;
+ hi->version = ATTO_VER_GET_DEV_ADDR0;
+ break;
+ }
+
+ if (gda->target_id >= ESAS2R_MAX_TARGETS) {
+ hi->status = ATTO_STS_INV_PARAM;
+ break;
+ }
+
+ t = a->targetdb + (u16)gda->target_id;
+
+ if (t->target_state != TS_PRESENT) {
+ hi->status = ATTO_STS_FAILED;
+ } else if (gda->addr_type == ATTO_GDA_AT_PORT) {
+ if (t->sas_addr == 0) {
+ hi->status = ATTO_STS_UNSUPPORTED;
+ } else {
+ *(u64 *)gda->address = t->sas_addr;
+
+ gda->addr_len = sizeof(u64);
+ }
+ } else if (gda->addr_type == ATTO_GDA_AT_NODE) {
+ hi->status = ATTO_STS_NOT_APPL;
+ } else {
+ hi->status = ATTO_STS_INV_PARAM;
+ }
+
+ /* update the target ID to the next one present. */
+
+ gda->target_id =
+ esas2r_targ_db_find_next_present(a,
+ (u16)gda->target_id);
+ break;
+ }
+
+ case ATTO_FUNC_PHY_CTRL:
+ case ATTO_FUNC_CONN_CTRL:
+ {
+ if (hba_ioctl_tunnel(a, hi, rq, sgc))
+ return true;
+
+ break;
+ }
+
+ case ATTO_FUNC_ADAP_CTRL:
+ {
+ struct atto_hba_adap_ctrl *ac = &hi->data.adap_ctrl;
+
+ if (hi->flags & HBAF_TUNNEL) {
+ hi->status = ATTO_STS_UNSUPPORTED;
+ break;
+ }
+
+ if (hi->version > ATTO_VER_ADAP_CTRL0) {
+ hi->status = ATTO_STS_INV_VERSION;
+ hi->version = ATTO_VER_ADAP_CTRL0;
+ break;
+ }
+
+ if (ac->adap_func == ATTO_AC_AF_HARD_RST) {
+ esas2r_reset_adapter(a);
+ } else if (ac->adap_func != ATTO_AC_AF_GET_STATE) {
+ hi->status = ATTO_STS_UNSUPPORTED;
+ break;
+ }
+
+ if (a->flags & AF_CHPRST_NEEDED)
+ ac->adap_state = ATTO_AC_AS_RST_SCHED;
+ else if (a->flags & AF_CHPRST_PENDING)
+ ac->adap_state = ATTO_AC_AS_RST_IN_PROG;
+ else if (a->flags & AF_DISC_PENDING)
+ ac->adap_state = ATTO_AC_AS_RST_DISC;
+ else if (a->flags & AF_DISABLED)
+ ac->adap_state = ATTO_AC_AS_DISABLED;
+ else if (a->flags & AF_DEGRADED_MODE)
+ ac->adap_state = ATTO_AC_AS_DEGRADED;
+ else
+ ac->adap_state = ATTO_AC_AS_OK;
+
+ break;
+ }
+
+ case ATTO_FUNC_GET_DEV_INFO:
+ {
+ struct atto_hba_get_device_info *gdi = &hi->data.get_dev_info;
+ struct esas2r_target *t;
+
+ if (hi->flags & HBAF_TUNNEL) {
+ if (hba_ioctl_tunnel(a, hi, rq, sgc))
+ return true;
+
+ break;
+ }
+
+ if (hi->version > ATTO_VER_GET_DEV_INFO0) {
+ hi->status = ATTO_STS_INV_VERSION;
+ hi->version = ATTO_VER_GET_DEV_INFO0;
+ break;
+ }
+
+ if (gdi->target_id >= ESAS2R_MAX_TARGETS) {
+ hi->status = ATTO_STS_INV_PARAM;
+ break;
+ }
+
+ t = a->targetdb + (u16)gdi->target_id;
+
+ /* update the target ID to the next one present. */
+
+ gdi->target_id =
+ esas2r_targ_db_find_next_present(a,
+ (u16)gdi->target_id);
+
+ if (t->target_state != TS_PRESENT) {
+ hi->status = ATTO_STS_FAILED;
+ break;
+ }
+
+ hi->status = ATTO_STS_UNSUPPORTED;
+ break;
+ }
+
+ default:
+
+ hi->status = ATTO_STS_INV_FUNC;
+ break;
+ }
+
+ return false;
+}
+
+static void hba_ioctl_done_callback(struct esas2r_adapter *a,
+ struct esas2r_request *rq, void *context)
+{
+ struct atto_ioctl *ioctl_hba =
+ (struct atto_ioctl *)esas2r_buffered_ioctl;
+
+ esas2r_debug("hba_ioctl_done_callback %d", a->index);
+
+ if (ioctl_hba->function == ATTO_FUNC_GET_ADAP_INFO) {
+ struct atto_hba_get_adapter_info *gai =
+ &ioctl_hba->data.get_adap_info;
+
+ esas2r_debug("ATTO_FUNC_GET_ADAP_INFO");
+
+ gai->drvr_rev_major = ESAS2R_MAJOR_REV;
+ gai->drvr_rev_minor = ESAS2R_MINOR_REV;
+
+ strcpy(gai->drvr_rev_ascii, ESAS2R_VERSION_STR);
+ strcpy(gai->drvr_name, ESAS2R_DRVR_NAME);
+
+ gai->num_busses = 1;
+ gai->num_targsper_bus = ESAS2R_MAX_ID + 1;
+ gai->num_lunsper_targ = 1;
+ }
+}
+
+u8 handle_hba_ioctl(struct esas2r_adapter *a,
+ struct atto_ioctl *ioctl_hba)
+{
+ struct esas2r_buffered_ioctl bi;
+
+ memset(&bi, 0, sizeof(bi));
+
+ bi.a = a;
+ bi.ioctl = ioctl_hba;
+ bi.length = sizeof(struct atto_ioctl) + ioctl_hba->data_length;
+ bi.callback = hba_ioctl_callback;
+ bi.context = NULL;
+ bi.done_callback = hba_ioctl_done_callback;
+ bi.done_context = NULL;
+ bi.offset = 0;
+
+ return handle_buffered_ioctl(&bi);
+}
+
+
+int esas2r_write_params(struct esas2r_adapter *a, struct esas2r_request *rq,
+ struct esas2r_sas_nvram *data)
+{
+ int result = 0;
+
+ a->nvram_command_done = 0;
+ rq->comp_cb = complete_nvr_req;
+
+ if (esas2r_nvram_write(a, rq, data)) {
+ /* now wait around for it to complete. */
+ while (!a->nvram_command_done)
+ wait_event_interruptible(a->nvram_waiter,
+ a->nvram_command_done);
+ ;
+
+ /* done, check the status. */
+ if (rq->req_stat == RS_SUCCESS)
+ result = 1;
+ }
+ return result;
+}
+
+
+/* This function only cares about ATTO-specific ioctls (atto_express_ioctl) */
+int esas2r_ioctl_handler(void *hostdata, int cmd, void __user *arg)
+{
+ struct atto_express_ioctl *ioctl = NULL;
+ struct esas2r_adapter *a;
+ struct esas2r_request *rq;
+ u16 code;
+ int err;
+
+ esas2r_log(ESAS2R_LOG_DEBG, "ioctl (%p, %x, %p)", hostdata, cmd, arg);
+
+ if ((arg == NULL)
+ || (cmd < EXPRESS_IOCTL_MIN)
+ || (cmd > EXPRESS_IOCTL_MAX))
+ return -ENOTSUPP;
+
+ if (!access_ok(VERIFY_WRITE, arg, sizeof(struct atto_express_ioctl))) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "ioctl_handler access_ok failed for cmd %d, "
+ "address %p", cmd,
+ arg);
+ return -EFAULT;
+ }
+
+ /* allocate a kernel memory buffer for the IOCTL data */
+ ioctl = kzalloc(sizeof(struct atto_express_ioctl), GFP_KERNEL);
+ if (ioctl == NULL) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "ioctl_handler kzalloc failed for %d bytes",
+ sizeof(struct atto_express_ioctl));
+ return -ENOMEM;
+ }
+
+ err = __copy_from_user(ioctl, arg, sizeof(struct atto_express_ioctl));
+ if (err != 0) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "copy_from_user didn't copy everything (err %d, cmd %d)",
+ err,
+ cmd);
+ kfree(ioctl);
+
+ return -EFAULT;
+ }
+
+ /* verify the signature */
+
+ if (memcmp(ioctl->header.signature,
+ EXPRESS_IOCTL_SIGNATURE,
+ EXPRESS_IOCTL_SIGNATURE_SIZE) != 0) {
+ esas2r_log(ESAS2R_LOG_WARN, "invalid signature");
+ kfree(ioctl);
+
+ return -ENOTSUPP;
+ }
+
+ /* assume success */
+
+ ioctl->header.return_code = IOCTL_SUCCESS;
+ err = 0;
+
+ /*
+ * handle EXPRESS_IOCTL_GET_CHANNELS
+ * without paying attention to channel
+ */
+
+ if (cmd == EXPRESS_IOCTL_GET_CHANNELS) {
+ int i = 0, k = 0;
+
+ ioctl->data.chanlist.num_channels = 0;
+
+ while (i < MAX_ADAPTERS) {
+ if (esas2r_adapters[i]) {
+ ioctl->data.chanlist.num_channels++;
+ ioctl->data.chanlist.channel[k] = i;
+ k++;
+ }
+ i++;
+ }
+
+ goto ioctl_done;
+ }
+
+ /* get the channel */
+
+ if (ioctl->header.channel == 0xFF) {
+ a = (struct esas2r_adapter *)hostdata;
+ } else {
+ a = esas2r_adapters[ioctl->header.channel];
+ if (ioctl->header.channel >= MAX_ADAPTERS || (a == NULL)) {
+ ioctl->header.return_code = IOCTL_BAD_CHANNEL;
+ esas2r_log(ESAS2R_LOG_WARN, "bad channel value");
+ kfree(ioctl);
+
+ return -ENOTSUPP;
+ }
+ }
+
+ switch (cmd) {
+ case EXPRESS_IOCTL_RW_FIRMWARE:
+
+ if (ioctl->data.fwrw.img_type == FW_IMG_FM_API) {
+ err = esas2r_write_fw(a,
+ (char *)ioctl->data.fwrw.image,
+ 0,
+ sizeof(struct
+ atto_express_ioctl));
+
+ if (err >= 0) {
+ err = esas2r_read_fw(a,
+ (char *)ioctl->data.fwrw.
+ image,
+ 0,
+ sizeof(struct
+ atto_express_ioctl));
+ }
+ } else if (ioctl->data.fwrw.img_type == FW_IMG_FS_API) {
+ err = esas2r_write_fs(a,
+ (char *)ioctl->data.fwrw.image,
+ 0,
+ sizeof(struct
+ atto_express_ioctl));
+
+ if (err >= 0) {
+ err = esas2r_read_fs(a,
+ (char *)ioctl->data.fwrw.
+ image,
+ 0,
+ sizeof(struct
+ atto_express_ioctl));
+ }
+ } else {
+ ioctl->header.return_code = IOCTL_BAD_FLASH_IMGTYPE;
+ }
+
+ break;
+
+ case EXPRESS_IOCTL_READ_PARAMS:
+
+ memcpy(ioctl->data.prw.data_buffer, a->nvram,
+ sizeof(struct esas2r_sas_nvram));
+ ioctl->data.prw.code = 1;
+ break;
+
+ case EXPRESS_IOCTL_WRITE_PARAMS:
+
+ rq = esas2r_alloc_request(a);
+ if (rq == NULL) {
+ up(&a->nvram_semaphore);
+ ioctl->data.prw.code = 0;
+ break;
+ }
+
+ code = esas2r_write_params(a, rq,
+ (struct esas2r_sas_nvram *)ioctl->data.prw.data_buffer);
+ ioctl->data.prw.code = code;
+
+ esas2r_free_request(a, rq);
+
+ break;
+
+ case EXPRESS_IOCTL_DEFAULT_PARAMS:
+
+ esas2r_nvram_get_defaults(a,
+ (struct esas2r_sas_nvram *)ioctl->data.prw.data_buffer);
+ ioctl->data.prw.code = 1;
+ break;
+
+ case EXPRESS_IOCTL_CHAN_INFO:
+
+ ioctl->data.chaninfo.major_rev = ESAS2R_MAJOR_REV;
+ ioctl->data.chaninfo.minor_rev = ESAS2R_MINOR_REV;
+ ioctl->data.chaninfo.IRQ = a->pcid->irq;
+ ioctl->data.chaninfo.device_id = a->pcid->device;
+ ioctl->data.chaninfo.vendor_id = a->pcid->vendor;
+ ioctl->data.chaninfo.ven_dev_id = a->pcid->subsystem_device;
+ ioctl->data.chaninfo.revision_id = a->pcid->revision;
+ ioctl->data.chaninfo.pci_bus = a->pcid->bus->number;
+ ioctl->data.chaninfo.pci_dev_func = a->pcid->devfn;
+ ioctl->data.chaninfo.core_rev = 0;
+ ioctl->data.chaninfo.host_no = a->host->host_no;
+ ioctl->data.chaninfo.hbaapi_rev = 0;
+ break;
+
+ case EXPRESS_IOCTL_SMP:
+ ioctl->header.return_code = handle_smp_ioctl(a,
+ &ioctl->data.
+ ioctl_smp);
+ break;
+
+ case EXPRESS_CSMI:
+ ioctl->header.return_code =
+ handle_csmi_ioctl(a, &ioctl->data.csmi);
+ break;
+
+ case EXPRESS_IOCTL_HBA:
+ ioctl->header.return_code = handle_hba_ioctl(a,
+ &ioctl->data.
+ ioctl_hba);
+ break;
+
+ case EXPRESS_IOCTL_VDA:
+ err = esas2r_write_vda(a,
+ (char *)&ioctl->data.ioctl_vda,
+ 0,
+ sizeof(struct atto_ioctl_vda) +
+ ioctl->data.ioctl_vda.data_length);
+
+ if (err >= 0) {
+ err = esas2r_read_vda(a,
+ (char *)&ioctl->data.ioctl_vda,
+ 0,
+ sizeof(struct atto_ioctl_vda) +
+ ioctl->data.ioctl_vda.data_length);
+ }
+
+
+
+
+ break;
+
+ case EXPRESS_IOCTL_GET_MOD_INFO:
+
+ ioctl->data.modinfo.adapter = a;
+ ioctl->data.modinfo.pci_dev = a->pcid;
+ ioctl->data.modinfo.scsi_host = a->host;
+ ioctl->data.modinfo.host_no = a->host->host_no;
+
+ break;
+
+ default:
+ esas2r_debug("esas2r_ioctl invalid cmd %p!", cmd);
+ ioctl->header.return_code = IOCTL_ERR_INVCMD;
+ }
+
+ioctl_done:
+
+ if (err < 0) {
+ esas2r_log(ESAS2R_LOG_WARN, "err %d on ioctl cmd %d", err,
+ cmd);
+
+ switch (err) {
+ case -ENOMEM:
+ case -EBUSY:
+ ioctl->header.return_code = IOCTL_OUT_OF_RESOURCES;
+ break;
+
+ case -ENOSYS:
+ case -EINVAL:
+ ioctl->header.return_code = IOCTL_INVALID_PARAM;
+ break;
+ }
+
+ ioctl->header.return_code = IOCTL_GENERAL_ERROR;
+ }
+
+ /* Always copy the buffer back, if only to pick up the status */
+ err = __copy_to_user(arg, ioctl, sizeof(struct atto_express_ioctl));
+ if (err != 0) {
+ esas2r_log(ESAS2R_LOG_WARN,
+ "ioctl_handler copy_to_user didn't copy "
+ "everything (err %d, cmd %d)", err,
+ cmd);
+ kfree(ioctl);
+
+ return -EFAULT;
+ }
+
+ kfree(ioctl);
+
+ return 0;
+}
+
+int esas2r_ioctl(struct scsi_device *sd, int cmd, void __user *arg)
+{
+ return esas2r_ioctl_handler(sd->host->hostdata, cmd, arg);
+}
+
+static void free_fw_buffers(struct esas2r_adapter *a)
+{
+ if (a->firmware.data) {
+ dma_free_coherent(&a->pcid->dev,
+ (size_t)a->firmware.orig_len,
+ a->firmware.data,
+ (dma_addr_t)a->firmware.phys);
+
+ a->firmware.data = NULL;
+ }
+}
+
+static int allocate_fw_buffers(struct esas2r_adapter *a, u32 length)
+{
+ free_fw_buffers(a);
+
+ a->firmware.orig_len = length;
+
+ a->firmware.data = (u8 *)dma_alloc_coherent(&a->pcid->dev,
+ (size_t)length,
+ (dma_addr_t *)&a->firmware.
+ phys,
+ GFP_KERNEL);
+
+ if (!a->firmware.data) {
+ esas2r_debug("buffer alloc failed!");
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Handle a call to read firmware. */
+int esas2r_read_fw(struct esas2r_adapter *a, char *buf, long off, int count)
+{
+ esas2r_trace_enter();
+ /* if the cached header is a status, simply copy it over and return. */
+ if (a->firmware.state == FW_STATUS_ST) {
+ int size = min_t(int, count, sizeof(a->firmware.header));
+ esas2r_trace_exit();
+ memcpy(buf, &a->firmware.header, size);
+ esas2r_debug("esas2r_read_fw: STATUS size %d", size);
+ return size;
+ }
+
+ /*
+ * if the cached header is a command, do it if at
+ * offset 0, otherwise copy the pieces.
+ */
+
+ if (a->firmware.state == FW_COMMAND_ST) {
+ u32 length = a->firmware.header.length;
+ esas2r_trace_exit();
+
+ esas2r_debug("esas2r_read_fw: COMMAND length %d off %d",
+ length,
+ off);
+
+ if (off == 0) {
+ if (a->firmware.header.action == FI_ACT_UP) {
+ if (!allocate_fw_buffers(a, length))
+ return -ENOMEM;
+
+
+ /* copy header over */
+
+ memcpy(a->firmware.data,
+ &a->firmware.header,
+ sizeof(a->firmware.header));
+
+ do_fm_api(a,
+ (struct esas2r_flash_img *)a->firmware.data);
+ } else if (a->firmware.header.action == FI_ACT_UPSZ) {
+ int size =
+ min((int)count,
+ (int)sizeof(a->firmware.header));
+ do_fm_api(a, &a->firmware.header);
+ memcpy(buf, &a->firmware.header, size);
+ esas2r_debug("FI_ACT_UPSZ size %d", size);
+ return size;
+ } else {
+ esas2r_debug("invalid action %d",
+ a->firmware.header.action);
+ return -ENOSYS;
+ }
+ }
+
+ if (count + off > length)
+ count = length - off;
+
+ if (count < 0)
+ return 0;
+
+ if (!a->firmware.data) {
+ esas2r_debug(
+ "read: nonzero offset but no buffer available!");
+ return -ENOMEM;
+ }
+
+ esas2r_debug("esas2r_read_fw: off %d count %d length %d ", off,
+ count,
+ length);
+
+ memcpy(buf, &a->firmware.data[off], count);
+
+ /* when done, release the buffer */
+
+ if (length <= off + count) {
+ esas2r_debug("esas2r_read_fw: freeing buffer!");
+
+ free_fw_buffers(a);
+ }
+
+ return count;
+ }
+
+ esas2r_trace_exit();
+ esas2r_debug("esas2r_read_fw: invalid firmware state %d",
+ a->firmware.state);
+
+ return -EINVAL;
+}
+
+/* Handle a call to write firmware. */
+int esas2r_write_fw(struct esas2r_adapter *a, const char *buf, long off,
+ int count)
+{
+ u32 length;
+
+ if (off == 0) {
+ struct esas2r_flash_img *header =
+ (struct esas2r_flash_img *)buf;
+
+ /* assume version 0 flash image */
+
+ int min_size = sizeof(struct esas2r_flash_img_v0);
+
+ a->firmware.state = FW_INVALID_ST;
+
+ /* validate the version field first */
+
+ if (count < 4
+ || header->fi_version > FI_VERSION_1) {
+ esas2r_debug(
+ "esas2r_write_fw: short header or invalid version");
+ return -EINVAL;
+ }
+
+ /* See if its a version 1 flash image */
+
+ if (header->fi_version == FI_VERSION_1)
+ min_size = sizeof(struct esas2r_flash_img);
+
+ /* If this is the start, the header must be full and valid. */
+ if (count < min_size) {
+ esas2r_debug("esas2r_write_fw: short header, aborting");
+ return -EINVAL;
+ }
+
+ /* Make sure the size is reasonable. */
+ length = header->length;
+
+ if (length > 1024 * 1024) {
+ esas2r_debug(
+ "esas2r_write_fw: hosed, length %d fi_version %d",
+ length, header->fi_version);
+ return -EINVAL;
+ }
+
+ /*
+ * If this is a write command, allocate memory because
+ * we have to cache everything. otherwise, just cache
+ * the header, because the read op will do the command.
+ */
+
+ if (header->action == FI_ACT_DOWN) {
+ if (!allocate_fw_buffers(a, length))
+ return -ENOMEM;
+
+ /*
+ * Store the command, so there is context on subsequent
+ * calls.
+ */
+ memcpy(&a->firmware.header,
+ buf,
+ sizeof(*header));
+ } else if (header->action == FI_ACT_UP
+ || header->action == FI_ACT_UPSZ) {
+ /* Save the command, result will be picked up on read */
+ memcpy(&a->firmware.header,
+ buf,
+ sizeof(*header));
+
+ a->firmware.state = FW_COMMAND_ST;
+
+ esas2r_debug(
+ "esas2r_write_fw: COMMAND, count %d, action %d ",
+ count, header->action);
+
+ /*
+ * Pretend we took the whole buffer,
+ * so we don't get bothered again.
+ */
+
+ return count;
+ } else {
+ esas2r_debug("esas2r_write_fw: invalid action %d ",
+ a->firmware.header.action);
+ return -ENOSYS;
+ }
+ } else {
+ length = a->firmware.header.length;
+ }
+
+ /*
+ * We only get here on a download command, regardless of offset.
+ * the chunks written by the system need to be cached, and when
+ * the final one arrives, issue the fmapi command.
+ */
+
+ if (off + count > length)
+ count = length - off;
+
+ if (count > 0) {
+ esas2r_debug("esas2r_write_fw: off %d count %d length %d", off,
+ count,
+ length);
+
+ /*
+ * On a full upload, the system tries sending the whole buffer.
+ * there's nothing to do with it, so just drop it here, before
+ * trying to copy over into unallocated memory!
+ */
+ if (a->firmware.header.action == FI_ACT_UP)
+ return count;
+
+ if (!a->firmware.data) {
+ esas2r_debug(
+ "write: nonzero offset but no buffer available!");
+ return -ENOMEM;
+ }
+
+ memcpy(&a->firmware.data[off], buf, count);
+
+ if (length == off + count) {
+ do_fm_api(a,
+ (struct esas2r_flash_img *)a->firmware.data);
+
+ /*
+ * Now copy the header result to be picked up by the
+ * next read
+ */
+ memcpy(&a->firmware.header,
+ a->firmware.data,
+ sizeof(a->firmware.header));
+
+ a->firmware.state = FW_STATUS_ST;
+
+ esas2r_debug("write completed");
+
+ /*
+ * Since the system has the data buffered, the only way
+ * this can leak is if a root user writes a program
+ * that writes a shorter buffer than it claims, and the
+ * copyin fails.
+ */
+ free_fw_buffers(a);
+ }
+ }
+
+ return count;
+}
+
+/* Callback for the completion of a VDA request. */
+static void vda_complete_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ a->vda_command_done = 1;
+ wake_up_interruptible(&a->vda_waiter);
+}
+
+/* Scatter/gather callback for VDA requests */
+static u32 get_physaddr_vda(struct esas2r_sg_context *sgc, u64 *addr)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
+ int offset = (u8 *)sgc->cur_offset - (u8 *)a->vda_buffer;
+
+ (*addr) = a->ppvda_buffer + offset;
+ return VDA_MAX_BUFFER_SIZE - offset;
+}
+
+/* Handle a call to read a VDA command. */
+int esas2r_read_vda(struct esas2r_adapter *a, char *buf, long off, int count)
+{
+ if (!a->vda_buffer)
+ return -ENOMEM;
+
+ if (off == 0) {
+ struct esas2r_request *rq;
+ struct atto_ioctl_vda *vi =
+ (struct atto_ioctl_vda *)a->vda_buffer;
+ struct esas2r_sg_context sgc;
+ bool wait_for_completion;
+
+ /*
+ * Presumeably, someone has already written to the vda_buffer,
+ * and now they are reading the node the response, so now we
+ * will actually issue the request to the chip and reply.
+ */
+
+ /* allocate a request */
+ rq = esas2r_alloc_request(a);
+ if (rq == NULL) {
+ esas2r_debug("esas2r_read_vda: out of requestss");
+ return -EBUSY;
+ }
+
+ rq->comp_cb = vda_complete_req;
+
+ sgc.first_req = rq;
+ sgc.adapter = a;
+ sgc.cur_offset = a->vda_buffer + VDA_BUFFER_HEADER_SZ;
+ sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_vda;
+
+ a->vda_command_done = 0;
+
+ wait_for_completion =
+ esas2r_process_vda_ioctl(a, vi, rq, &sgc);
+
+ if (wait_for_completion) {
+ /* now wait around for it to complete. */
+
+ while (!a->vda_command_done)
+ wait_event_interruptible(a->vda_waiter,
+ a->vda_command_done);
+ }
+
+ esas2r_free_request(a, (struct esas2r_request *)rq);
+ }
+
+ if (off > VDA_MAX_BUFFER_SIZE)
+ return 0;
+
+ if (count + off > VDA_MAX_BUFFER_SIZE)
+ count = VDA_MAX_BUFFER_SIZE - off;
+
+ if (count < 0)
+ return 0;
+
+ memcpy(buf, a->vda_buffer + off, count);
+
+ return count;
+}
+
+/* Handle a call to write a VDA command. */
+int esas2r_write_vda(struct esas2r_adapter *a, const char *buf, long off,
+ int count)
+{
+ /*
+ * allocate memory for it, if not already done. once allocated,
+ * we will keep it around until the driver is unloaded.
+ */
+
+ if (!a->vda_buffer) {
+ dma_addr_t dma_addr;
+ a->vda_buffer = (u8 *)dma_alloc_coherent(&a->pcid->dev,
+ (size_t)
+ VDA_MAX_BUFFER_SIZE,
+ &dma_addr,
+ GFP_KERNEL);
+
+ a->ppvda_buffer = dma_addr;
+ }
+
+ if (!a->vda_buffer)
+ return -ENOMEM;
+
+ if (off > VDA_MAX_BUFFER_SIZE)
+ return 0;
+
+ if (count + off > VDA_MAX_BUFFER_SIZE)
+ count = VDA_MAX_BUFFER_SIZE - off;
+
+ if (count < 1)
+ return 0;
+
+ memcpy(a->vda_buffer + off, buf, count);
+
+ return count;
+}
+
+/* Callback for the completion of an FS_API request.*/
+static void fs_api_complete_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ a->fs_api_command_done = 1;
+
+ wake_up_interruptible(&a->fs_api_waiter);
+}
+
+/* Scatter/gather callback for VDA requests */
+static u32 get_physaddr_fs_api(struct esas2r_sg_context *sgc, u64 *addr)
+{
+ struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
+ struct esas2r_ioctl_fs *fs =
+ (struct esas2r_ioctl_fs *)a->fs_api_buffer;
+ u32 offset = (u8 *)sgc->cur_offset - (u8 *)fs;
+
+ (*addr) = a->ppfs_api_buffer + offset;
+
+ return a->fs_api_buffer_size - offset;
+}
+
+/* Handle a call to read firmware via FS_API. */
+int esas2r_read_fs(struct esas2r_adapter *a, char *buf, long off, int count)
+{
+ if (!a->fs_api_buffer)
+ return -ENOMEM;
+
+ if (off == 0) {
+ struct esas2r_request *rq;
+ struct esas2r_sg_context sgc;
+ struct esas2r_ioctl_fs *fs =
+ (struct esas2r_ioctl_fs *)a->fs_api_buffer;
+
+ /* If another flash request is already in progress, return. */
+ if (down_interruptible(&a->fs_api_semaphore)) {
+busy:
+ fs->status = ATTO_STS_OUT_OF_RSRC;
+ return -EBUSY;
+ }
+
+ /*
+ * Presumeably, someone has already written to the
+ * fs_api_buffer, and now they are reading the node the
+ * response, so now we will actually issue the request to the
+ * chip and reply. Allocate a request
+ */
+
+ rq = esas2r_alloc_request(a);
+ if (rq == NULL) {
+ esas2r_debug("esas2r_read_fs: out of requests");
+ up(&a->fs_api_semaphore);
+ goto busy;
+ }
+
+ rq->comp_cb = fs_api_complete_req;
+
+ /* Set up the SGCONTEXT for to build the s/g table */
+
+ sgc.cur_offset = fs->data;
+ sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_fs_api;
+
+ a->fs_api_command_done = 0;
+
+ if (!esas2r_process_fs_ioctl(a, fs, rq, &sgc)) {
+ if (fs->status == ATTO_STS_OUT_OF_RSRC)
+ count = -EBUSY;
+
+ goto dont_wait;
+ }
+
+ /* Now wait around for it to complete. */
+
+ while (!a->fs_api_command_done)
+ wait_event_interruptible(a->fs_api_waiter,
+ a->fs_api_command_done);
+ ;
+dont_wait:
+ /* Free the request and keep going */
+ up(&a->fs_api_semaphore);
+ esas2r_free_request(a, (struct esas2r_request *)rq);
+
+ /* Pick up possible error code from above */
+ if (count < 0)
+ return count;
+ }
+
+ if (off > a->fs_api_buffer_size)
+ return 0;
+
+ if (count + off > a->fs_api_buffer_size)
+ count = a->fs_api_buffer_size - off;
+
+ if (count < 0)
+ return 0;
+
+ memcpy(buf, a->fs_api_buffer + off, count);
+
+ return count;
+}
+
+/* Handle a call to write firmware via FS_API. */
+int esas2r_write_fs(struct esas2r_adapter *a, const char *buf, long off,
+ int count)
+{
+ if (off == 0) {
+ struct esas2r_ioctl_fs *fs = (struct esas2r_ioctl_fs *)buf;
+ u32 length = fs->command.length + offsetof(
+ struct esas2r_ioctl_fs,
+ data);
+
+ /*
+ * Special case, for BEGIN commands, the length field
+ * is lying to us, so just get enough for the header.
+ */
+
+ if (fs->command.command == ESAS2R_FS_CMD_BEGINW)
+ length = offsetof(struct esas2r_ioctl_fs, data);
+
+ /*
+ * Beginning a command. We assume we'll get at least
+ * enough in the first write so we can look at the
+ * header and see how much we need to alloc.
+ */
+
+ if (count < offsetof(struct esas2r_ioctl_fs, data))
+ return -EINVAL;
+
+ /* Allocate a buffer or use the existing buffer. */
+ if (a->fs_api_buffer) {
+ if (a->fs_api_buffer_size < length) {
+ /* Free too-small buffer and get a new one */
+ dma_free_coherent(&a->pcid->dev,
+ (size_t)a->fs_api_buffer_size,
+ a->fs_api_buffer,
+ (dma_addr_t)a->ppfs_api_buffer);
+
+ goto re_allocate_buffer;
+ }
+ } else {
+re_allocate_buffer:
+ a->fs_api_buffer_size = length;
+
+ a->fs_api_buffer = (u8 *)dma_alloc_coherent(
+ &a->pcid->dev,
+ (size_t)a->fs_api_buffer_size,
+ (dma_addr_t *)&a->ppfs_api_buffer,
+ GFP_KERNEL);
+ }
+ }
+
+ if (!a->fs_api_buffer)
+ return -ENOMEM;
+
+ if (off > a->fs_api_buffer_size)
+ return 0;
+
+ if (count + off > a->fs_api_buffer_size)
+ count = a->fs_api_buffer_size - off;
+
+ if (count < 1)
+ return 0;
+
+ memcpy(a->fs_api_buffer + off, buf, count);
+
+ return count;
+}
--
1.8.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v4 09/10] SCSI: esas2r: Add ATTO VDA Firmware API headers and functions. This API is used to control and manage the RAID adapter.
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
` (7 preceding siblings ...)
2013-08-23 14:35 ` [PATCH v4 08/10] SCSI: esas2r: Add IOCTL functions Bradley Grove
@ 2013-08-23 14:35 ` Bradley Grove
2013-08-23 14:35 ` [PATCH v4 10/10] SCSI: esas2r: Add Makefile, Kconfig, and MAINTAINERS files Bradley Grove
2013-08-26 9:59 ` [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver James Bottomley
10 siblings, 0 replies; 12+ messages in thread
From: Bradley Grove @ 2013-08-23 14:35 UTC (permalink / raw)
To: linux-scsi, jbottomley; +Cc: jseba, Bradley Grove
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
drivers/scsi/esas2r/atvda.h | 1320 ++++++++++++++++++++++++++++++++++++++
drivers/scsi/esas2r/esas2r_vda.c | 523 +++++++++++++++
2 files changed, 1843 insertions(+)
create mode 100644 drivers/scsi/esas2r/atvda.h
create mode 100644 drivers/scsi/esas2r/esas2r_vda.c
diff --git a/drivers/scsi/esas2r/atvda.h b/drivers/scsi/esas2r/atvda.h
new file mode 100644
index 0000000..0f70c31
--- /dev/null
+++ b/drivers/scsi/esas2r/atvda.h
@@ -0,0 +1,1319 @@
+/* linux/drivers/scsi/esas2r/atvda.h
+ * ATTO VDA interface definitions
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+
+
+#ifndef ATVDA_H
+#define ATVDA_H
+
+struct __packed atto_dev_addr {
+ u64 dev_port;
+ u64 hba_port;
+ u8 lun;
+ u8 flags;
+ #define VDA_DEVADDRF_SATA 0x01
+ #define VDA_DEVADDRF_SSD 0x02
+ u8 link_speed; /* VDALINKSPEED_xxx */
+ u8 pad[1];
+};
+
+/* dev_addr2 was added for 64-bit alignment */
+
+struct __packed atto_dev_addr2 {
+ u64 dev_port;
+ u64 hba_port;
+ u8 lun;
+ u8 flags;
+ u8 link_speed;
+ u8 pad[5];
+};
+
+struct __packed atto_vda_sge {
+ u32 length;
+ u64 address;
+};
+
+
+/* VDA request function codes */
+
+#define VDA_FUNC_SCSI 0x00
+#define VDA_FUNC_FLASH 0x01
+#define VDA_FUNC_DIAG 0x02
+#define VDA_FUNC_AE 0x03
+#define VDA_FUNC_CLI 0x04
+#define VDA_FUNC_IOCTL 0x05
+#define VDA_FUNC_CFG 0x06
+#define VDA_FUNC_MGT 0x07
+#define VDA_FUNC_GSV 0x08
+
+
+/* VDA request status values. for host driver considerations, values for
+ * SCSI requests start at zero. other requests may use these values as well. */
+
+#define RS_SUCCESS 0x00 /*! successful completion */
+#define RS_INV_FUNC 0x01 /*! invalid command function */
+#define RS_BUSY 0x02 /*! insufficient resources */
+#define RS_SEL 0x03 /*! no target at target_id */
+#define RS_NO_LUN 0x04 /*! invalid LUN */
+#define RS_TIMEOUT 0x05 /*! request timeout */
+#define RS_OVERRUN 0x06 /*! data overrun */
+#define RS_UNDERRUN 0x07 /*! data underrun */
+#define RS_SCSI_ERROR 0x08 /*! SCSI error occurred */
+#define RS_ABORTED 0x0A /*! command aborted */
+#define RS_RESID_MISM 0x0B /*! residual length incorrect */
+#define RS_TM_FAILED 0x0C /*! task management failed */
+#define RS_RESET 0x0D /*! aborted due to bus reset */
+#define RS_ERR_DMA_SG 0x0E /*! error reading SG list */
+#define RS_ERR_DMA_DATA 0x0F /*! error transferring data */
+#define RS_UNSUPPORTED 0x10 /*! unsupported request */
+#define RS_SEL2 0x70 /*! internal generated RS_SEL */
+#define RS_VDA_BASE 0x80 /*! base of VDA-specific errors */
+#define RS_MGT_BASE 0x80 /*! base of VDA management errors */
+#define RS_SCAN_FAIL (RS_MGT_BASE + 0x00)
+#define RS_DEV_INVALID (RS_MGT_BASE + 0x01)
+#define RS_DEV_ASSIGNED (RS_MGT_BASE + 0x02)
+#define RS_DEV_REMOVE (RS_MGT_BASE + 0x03)
+#define RS_DEV_LOST (RS_MGT_BASE + 0x04)
+#define RS_SCAN_GEN (RS_MGT_BASE + 0x05)
+#define RS_GRP_INVALID (RS_MGT_BASE + 0x08)
+#define RS_GRP_EXISTS (RS_MGT_BASE + 0x09)
+#define RS_GRP_LIMIT (RS_MGT_BASE + 0x0A)
+#define RS_GRP_INTLV (RS_MGT_BASE + 0x0B)
+#define RS_GRP_SPAN (RS_MGT_BASE + 0x0C)
+#define RS_GRP_TYPE (RS_MGT_BASE + 0x0D)
+#define RS_GRP_MEMBERS (RS_MGT_BASE + 0x0E)
+#define RS_GRP_COMMIT (RS_MGT_BASE + 0x0F)
+#define RS_GRP_REBUILD (RS_MGT_BASE + 0x10)
+#define RS_GRP_REBUILD_TYPE (RS_MGT_BASE + 0x11)
+#define RS_GRP_BLOCK_SIZE (RS_MGT_BASE + 0x12)
+#define RS_CFG_SAVE (RS_MGT_BASE + 0x14)
+#define RS_PART_LAST (RS_MGT_BASE + 0x18)
+#define RS_ELEM_INVALID (RS_MGT_BASE + 0x19)
+#define RS_PART_MAPPED (RS_MGT_BASE + 0x1A)
+#define RS_PART_TARGET (RS_MGT_BASE + 0x1B)
+#define RS_PART_LUN (RS_MGT_BASE + 0x1C)
+#define RS_PART_DUP (RS_MGT_BASE + 0x1D)
+#define RS_PART_NOMAP (RS_MGT_BASE + 0x1E)
+#define RS_PART_MAX (RS_MGT_BASE + 0x1F)
+#define RS_PART_CAP (RS_MGT_BASE + 0x20)
+#define RS_PART_STATE (RS_MGT_BASE + 0x21)
+#define RS_TEST_IN_PROG (RS_MGT_BASE + 0x22)
+#define RS_METRICS_ERROR (RS_MGT_BASE + 0x23)
+#define RS_HS_ERROR (RS_MGT_BASE + 0x24)
+#define RS_NO_METRICS_TEST (RS_MGT_BASE + 0x25)
+#define RS_BAD_PARAM (RS_MGT_BASE + 0x26)
+#define RS_GRP_MEMBER_SIZE (RS_MGT_BASE + 0x27)
+#define RS_FLS_BASE 0xB0 /*! base of VDA errors */
+#define RS_FLS_ERR_AREA (RS_FLS_BASE + 0x00)
+#define RS_FLS_ERR_BUSY (RS_FLS_BASE + 0x01)
+#define RS_FLS_ERR_RANGE (RS_FLS_BASE + 0x02)
+#define RS_FLS_ERR_BEGIN (RS_FLS_BASE + 0x03)
+#define RS_FLS_ERR_CHECK (RS_FLS_BASE + 0x04)
+#define RS_FLS_ERR_FAIL (RS_FLS_BASE + 0x05)
+#define RS_FLS_ERR_RSRC (RS_FLS_BASE + 0x06)
+#define RS_FLS_ERR_NOFILE (RS_FLS_BASE + 0x07)
+#define RS_FLS_ERR_FSIZE (RS_FLS_BASE + 0x08)
+#define RS_CFG_BASE 0xC0 /*! base of VDA configuration errors */
+#define RS_CFG_ERR_BUSY (RS_CFG_BASE + 0)
+#define RS_CFG_ERR_SGE (RS_CFG_BASE + 1)
+#define RS_CFG_ERR_DATE (RS_CFG_BASE + 2)
+#define RS_CFG_ERR_TIME (RS_CFG_BASE + 3)
+#define RS_DEGRADED 0xFB /*! degraded mode */
+#define RS_CLI_INTERNAL 0xFC /*! VDA CLI internal error */
+#define RS_VDA_INTERNAL 0xFD /*! catch-all */
+#define RS_PENDING 0xFE /*! pending, not started */
+#define RS_STARTED 0xFF /*! started */
+
+
+/* flash request subfunctions. these are used in both the IOCTL and the
+ * driver-firmware interface (VDA_FUNC_FLASH). */
+
+#define VDA_FLASH_BEGINW 0x00
+#define VDA_FLASH_READ 0x01
+#define VDA_FLASH_WRITE 0x02
+#define VDA_FLASH_COMMIT 0x03
+#define VDA_FLASH_CANCEL 0x04
+#define VDA_FLASH_INFO 0x05
+#define VDA_FLASH_FREAD 0x06
+#define VDA_FLASH_FWRITE 0x07
+#define VDA_FLASH_FINFO 0x08
+
+
+/* IOCTL request subfunctions. these identify the payload type for
+ * VDA_FUNC_IOCTL.
+ */
+
+#define VDA_IOCTL_HBA 0x00
+#define VDA_IOCTL_CSMI 0x01
+#define VDA_IOCTL_SMP 0x02
+
+struct __packed atto_vda_devinfo {
+ struct atto_dev_addr dev_addr;
+ u8 vendor_id[8];
+ u8 product_id[16];
+ u8 revision[4];
+ u64 capacity;
+ u32 block_size;
+ u8 dev_type;
+
+ union {
+ u8 dev_status;
+ #define VDADEVSTAT_INVALID 0x00
+ #define VDADEVSTAT_CORRUPT VDADEVSTAT_INVALID
+ #define VDADEVSTAT_ASSIGNED 0x01
+ #define VDADEVSTAT_SPARE 0x02
+ #define VDADEVSTAT_UNAVAIL 0x03
+ #define VDADEVSTAT_PT_MAINT 0x04
+ #define VDADEVSTAT_LCLSPARE 0x05
+ #define VDADEVSTAT_UNUSEABLE 0x06
+ #define VDADEVSTAT_AVAIL 0xFF
+
+ u8 op_ctrl;
+ #define VDA_DEV_OP_CTRL_START 0x01
+ #define VDA_DEV_OP_CTRL_HALT 0x02
+ #define VDA_DEV_OP_CTRL_RESUME 0x03
+ #define VDA_DEV_OP_CTRL_CANCEL 0x04
+ };
+
+ u8 member_state;
+ #define VDAMBRSTATE_ONLINE 0x00
+ #define VDAMBRSTATE_DEGRADED 0x01
+ #define VDAMBRSTATE_UNAVAIL 0x02
+ #define VDAMBRSTATE_FAULTED 0x03
+ #define VDAMBRSTATE_MISREAD 0x04
+ #define VDAMBRSTATE_INCOMPAT 0x05
+
+ u8 operation;
+ #define VDAOP_NONE 0x00
+ #define VDAOP_REBUILD 0x01
+ #define VDAOP_ERASE 0x02
+ #define VDAOP_PATTERN 0x03
+ #define VDAOP_CONVERSION 0x04
+ #define VDAOP_FULL_INIT 0x05
+ #define VDAOP_QUICK_INIT 0x06
+ #define VDAOP_SECT_SCAN 0x07
+ #define VDAOP_SECT_SCAN_PARITY 0x08
+ #define VDAOP_SECT_SCAN_PARITY_FIX 0x09
+ #define VDAOP_RECOV_REBUILD 0x0A
+
+ u8 op_status;
+ #define VDAOPSTAT_OK 0x00
+ #define VDAOPSTAT_FAULTED 0x01
+ #define VDAOPSTAT_HALTED 0x02
+ #define VDAOPSTAT_INT 0x03
+
+ u8 progress; /* 0 - 100% */
+ u16 ses_dev_index;
+ #define VDASESDI_INVALID 0xFFFF
+
+ u8 serial_no[32];
+
+ union {
+ u16 target_id;
+ #define VDATGTID_INVALID 0xFFFF
+
+ u16 features_mask;
+ };
+
+ u16 lun;
+ u16 features;
+ #define VDADEVFEAT_ENC_SERV 0x0001
+ #define VDADEVFEAT_IDENT 0x0002
+ #define VDADEVFEAT_DH_SUPP 0x0004
+ #define VDADEVFEAT_PHYS_ID 0x0008
+
+ u8 ses_element_id;
+ u8 link_speed;
+ #define VDALINKSPEED_UNKNOWN 0x00
+ #define VDALINKSPEED_1GB 0x01
+ #define VDALINKSPEED_1_5GB 0x02
+ #define VDALINKSPEED_2GB 0x03
+ #define VDALINKSPEED_3GB 0x04
+ #define VDALINKSPEED_4GB 0x05
+ #define VDALINKSPEED_6GB 0x06
+ #define VDALINKSPEED_8GB 0x07
+
+ u16 phys_target_id;
+ u8 reserved[2];
+};
+
+
+/*! struct atto_vda_devinfo2 is a replacement for atto_vda_devinfo. it
+ * extends beyond the 0x70 bytes allowed in atto_vda_mgmt_req; therefore,
+ * the entire structure is DMaed between the firmware and host buffer and
+ * the data will always be in little endian format.
+ */
+
+struct __packed atto_vda_devinfo2 {
+ struct atto_dev_addr dev_addr;
+ u8 vendor_id[8];
+ u8 product_id[16];
+ u8 revision[4];
+ u64 capacity;
+ u32 block_size;
+ u8 dev_type;
+ u8 dev_status;
+ u8 member_state;
+ u8 operation;
+ u8 op_status;
+ u8 progress;
+ u16 ses_dev_index;
+ u8 serial_no[32];
+ union {
+ u16 target_id;
+ u16 features_mask;
+ };
+
+ u16 lun;
+ u16 features;
+ u8 ses_element_id;
+ u8 link_speed;
+ u16 phys_target_id;
+ u8 reserved[2];
+
+/* This is where fields specific to struct atto_vda_devinfo2 begin. Note
+ * that the structure version started at one so applications that unionize this
+ * structure with atto_vda_dev_info can differentiate them if desired.
+ */
+
+ u8 version;
+ #define VDADEVINFO_VERSION0 0x00
+ #define VDADEVINFO_VERSION1 0x01
+ #define VDADEVINFO_VERSION2 0x02
+ #define VDADEVINFO_VERSION3 0x03
+ #define VDADEVINFO_VERSION VDADEVINFO_VERSION3
+
+ u8 reserved2[3];
+
+ /* sector scanning fields */
+
+ u32 ss_curr_errors;
+ u64 ss_curr_scanned;
+ u32 ss_curr_recvrd;
+ u32 ss_scan_length;
+ u32 ss_total_errors;
+ u32 ss_total_recvrd;
+ u32 ss_num_scans;
+
+ /* grp_name was added in version 2 of this structure. */
+
+ char grp_name[15];
+ u8 reserved3[4];
+
+ /* dev_addr_list was added in version 3 of this structure. */
+
+ u8 num_dev_addr;
+ struct atto_dev_addr2 dev_addr_list[8];
+};
+
+
+struct __packed atto_vda_grp_info {
+ u8 grp_index;
+ #define VDA_MAX_RAID_GROUPS 32
+
+ char grp_name[15];
+ u64 capacity;
+ u32 block_size;
+ u32 interleave;
+ u8 type;
+ #define VDA_GRP_TYPE_RAID0 0
+ #define VDA_GRP_TYPE_RAID1 1
+ #define VDA_GRP_TYPE_RAID4 4
+ #define VDA_GRP_TYPE_RAID5 5
+ #define VDA_GRP_TYPE_RAID6 6
+ #define VDA_GRP_TYPE_RAID10 10
+ #define VDA_GRP_TYPE_RAID40 40
+ #define VDA_GRP_TYPE_RAID50 50
+ #define VDA_GRP_TYPE_RAID60 60
+ #define VDA_GRP_TYPE_DVRAID_HS 252
+ #define VDA_GRP_TYPE_DVRAID_NOHS 253
+ #define VDA_GRP_TYPE_JBOD 254
+ #define VDA_GRP_TYPE_SPARE 255
+
+ union {
+ u8 status;
+ #define VDA_GRP_STAT_INVALID 0x00
+ #define VDA_GRP_STAT_NEW 0x01
+ #define VDA_GRP_STAT_WAITING 0x02
+ #define VDA_GRP_STAT_ONLINE 0x03
+ #define VDA_GRP_STAT_DEGRADED 0x04
+ #define VDA_GRP_STAT_OFFLINE 0x05
+ #define VDA_GRP_STAT_DELETED 0x06
+ #define VDA_GRP_STAT_RECOV_BASIC 0x07
+ #define VDA_GRP_STAT_RECOV_EXTREME 0x08
+
+ u8 op_ctrl;
+ #define VDA_GRP_OP_CTRL_START 0x01
+ #define VDA_GRP_OP_CTRL_HALT 0x02
+ #define VDA_GRP_OP_CTRL_RESUME 0x03
+ #define VDA_GRP_OP_CTRL_CANCEL 0x04
+ };
+
+ u8 rebuild_state;
+ #define VDA_RBLD_NONE 0x00
+ #define VDA_RBLD_REBUILD 0x01
+ #define VDA_RBLD_ERASE 0x02
+ #define VDA_RBLD_PATTERN 0x03
+ #define VDA_RBLD_CONV 0x04
+ #define VDA_RBLD_FULL_INIT 0x05
+ #define VDA_RBLD_QUICK_INIT 0x06
+ #define VDA_RBLD_SECT_SCAN 0x07
+ #define VDA_RBLD_SECT_SCAN_PARITY 0x08
+ #define VDA_RBLD_SECT_SCAN_PARITY_FIX 0x09
+ #define VDA_RBLD_RECOV_REBUILD 0x0A
+ #define VDA_RBLD_RECOV_BASIC 0x0B
+ #define VDA_RBLD_RECOV_EXTREME 0x0C
+
+ u8 span_depth;
+ u8 progress;
+ u8 mirror_width;
+ u8 stripe_width;
+ u8 member_cnt;
+
+ union {
+ u16 members[32];
+ #define VDA_MEMBER_MISSING 0xFFFF
+ #define VDA_MEMBER_NEW 0xFFFE
+ u16 features_mask;
+ };
+
+ u16 features;
+ #define VDA_GRP_FEAT_HOTSWAP 0x0001
+ #define VDA_GRP_FEAT_SPDRD_MASK 0x0006
+ #define VDA_GRP_FEAT_SPDRD_DIS 0x0000
+ #define VDA_GRP_FEAT_SPDRD_ENB 0x0002
+ #define VDA_GRP_FEAT_SPDRD_AUTO 0x0004
+ #define VDA_GRP_FEAT_IDENT 0x0008
+ #define VDA_GRP_FEAT_RBLDPRI_MASK 0x0030
+ #define VDA_GRP_FEAT_RBLDPRI_LOW 0x0010
+ #define VDA_GRP_FEAT_RBLDPRI_SAME 0x0020
+ #define VDA_GRP_FEAT_RBLDPRI_HIGH 0x0030
+ #define VDA_GRP_FEAT_WRITE_CACHE 0x0040
+ #define VDA_GRP_FEAT_RBLD_RESUME 0x0080
+ #define VDA_GRP_FEAT_SECT_RESUME 0x0100
+ #define VDA_GRP_FEAT_INIT_RESUME 0x0200
+ #define VDA_GRP_FEAT_SSD 0x0400
+ #define VDA_GRP_FEAT_BOOT_DEV 0x0800
+
+ /*
+ * for backward compatibility, a prefetch value of zero means the
+ * setting is ignored/unsupported. therefore, the firmware supported
+ * 0-6 values are incremented to 1-7.
+ */
+
+ u8 prefetch;
+ u8 op_status;
+ #define VDAGRPOPSTAT_MASK 0x0F
+ #define VDAGRPOPSTAT_INVALID 0x00
+ #define VDAGRPOPSTAT_OK 0x01
+ #define VDAGRPOPSTAT_FAULTED 0x02
+ #define VDAGRPOPSTAT_HALTED 0x03
+ #define VDAGRPOPSTAT_INT 0x04
+ #define VDAGRPOPPROC_MASK 0xF0
+ #define VDAGRPOPPROC_STARTABLE 0x10
+ #define VDAGRPOPPROC_CANCELABLE 0x20
+ #define VDAGRPOPPROC_RESUMABLE 0x40
+ #define VDAGRPOPPROC_HALTABLE 0x80
+ u8 over_provision;
+ u8 reserved[3];
+
+};
+
+
+struct __packed atto_vdapart_info {
+ u8 part_no;
+ #define VDA_MAX_PARTITIONS 128
+
+ char grp_name[15];
+ u64 part_size;
+ u64 start_lba;
+ u32 block_size;
+ u16 target_id;
+ u8 LUN;
+ char serial_no[41];
+ u8 features;
+ #define VDAPI_FEAT_WRITE_CACHE 0x01
+
+ u8 reserved[7];
+};
+
+
+struct __packed atto_vda_dh_info {
+ u8 req_type;
+ #define VDADH_RQTYPE_CACHE 0x01
+ #define VDADH_RQTYPE_FETCH 0x02
+ #define VDADH_RQTYPE_SET_STAT 0x03
+ #define VDADH_RQTYPE_GET_STAT 0x04
+
+ u8 req_qual;
+ #define VDADH_RQQUAL_SMART 0x01
+ #define VDADH_RQQUAL_MEDDEF 0x02
+ #define VDADH_RQQUAL_INFOEXC 0x04
+
+ u8 num_smart_attribs;
+ u8 status;
+ #define VDADH_STAT_DISABLE 0x00
+ #define VDADH_STAT_ENABLE 0x01
+
+ u32 med_defect_cnt;
+ u32 info_exc_cnt;
+ u8 smart_status;
+ #define VDADH_SMARTSTAT_OK 0x00
+ #define VDADH_SMARTSTAT_ERR 0x01
+
+ u8 reserved[35];
+ struct atto_vda_sge sge[1];
+};
+
+
+struct __packed atto_vda_dh_smart {
+ u8 attrib_id;
+ u8 current_val;
+ u8 worst;
+ u8 threshold;
+ u8 raw_data[6];
+ u8 raw_attrib_status;
+ #define VDADHSM_RAWSTAT_PREFAIL_WARRANTY 0x01
+ #define VDADHSM_RAWSTAT_ONLINE_COLLECTION 0x02
+ #define VDADHSM_RAWSTAT_PERFORMANCE_ATTR 0x04
+ #define VDADHSM_RAWSTAT_ERROR_RATE_ATTR 0x08
+ #define VDADHSM_RAWSTAT_EVENT_COUNT_ATTR 0x10
+ #define VDADHSM_RAWSTAT_SELF_PRESERVING_ATTR 0x20
+
+ u8 calc_attrib_status;
+ #define VDADHSM_CALCSTAT_UNKNOWN 0x00
+ #define VDADHSM_CALCSTAT_GOOD 0x01
+ #define VDADHSM_CALCSTAT_PREFAIL 0x02
+ #define VDADHSM_CALCSTAT_OLDAGE 0x03
+
+ u8 reserved[4];
+};
+
+
+struct __packed atto_vda_metrics_info {
+ u8 data_version;
+ #define VDAMET_VERSION0 0x00
+ #define VDAMET_VERSION VDAMET_VERSION0
+
+ u8 metrics_action;
+ #define VDAMET_METACT_NONE 0x00
+ #define VDAMET_METACT_START 0x01
+ #define VDAMET_METACT_STOP 0x02
+ #define VDAMET_METACT_RETRIEVE 0x03
+ #define VDAMET_METACT_CLEAR 0x04
+
+ u8 test_action;
+ #define VDAMET_TSTACT_NONE 0x00
+ #define VDAMET_TSTACT_STRT_INIT 0x01
+ #define VDAMET_TSTACT_STRT_READ 0x02
+ #define VDAMET_TSTACT_STRT_VERIFY 0x03
+ #define VDAMET_TSTACT_STRT_INIT_VERIFY 0x04
+ #define VDAMET_TSTACT_STOP 0x05
+
+ u8 num_dev_indexes;
+ #define VDAMET_ALL_DEVICES 0xFF
+
+ u16 dev_indexes[32];
+ u8 reserved[12];
+ struct atto_vda_sge sge[1];
+};
+
+
+struct __packed atto_vda_metrics_data {
+ u16 dev_index;
+ u16 length;
+ #define VDAMD_LEN_LAST 0x8000
+ #define VDAMD_LEN_MASK 0x0FFF
+
+ u32 flags;
+ #define VDAMDF_RUN 0x00000007
+ #define VDAMDF_RUN_READ 0x00000001
+ #define VDAMDF_RUN_WRITE 0x00000002
+ #define VDAMDF_RUN_ALL 0x00000004
+ #define VDAMDF_READ 0x00000010
+ #define VDAMDF_WRITE 0x00000020
+ #define VDAMDF_ALL 0x00000040
+ #define VDAMDF_DRIVETEST 0x40000000
+ #define VDAMDF_NEW 0x80000000
+
+ u64 total_read_data;
+ u64 total_write_data;
+ u64 total_read_io;
+ u64 total_write_io;
+ u64 read_start_time;
+ u64 read_stop_time;
+ u64 write_start_time;
+ u64 write_stop_time;
+ u64 read_maxio_time;
+ u64 wpvdadmetricsdatarite_maxio_time;
+ u64 read_totalio_time;
+ u64 write_totalio_time;
+ u64 read_total_errs;
+ u64 write_total_errs;
+ u64 read_recvrd_errs;
+ u64 write_recvrd_errs;
+ u64 miscompares;
+};
+
+
+struct __packed atto_vda_schedule_info {
+ u8 schedule_type;
+ #define VDASI_SCHTYPE_ONETIME 0x01
+ #define VDASI_SCHTYPE_DAILY 0x02
+ #define VDASI_SCHTYPE_WEEKLY 0x03
+
+ u8 operation;
+ #define VDASI_OP_NONE 0x00
+ #define VDASI_OP_CREATE 0x01
+ #define VDASI_OP_CANCEL 0x02
+
+ u8 hour;
+ u8 minute;
+ u8 day;
+ #define VDASI_DAY_NONE 0x00
+
+ u8 progress;
+ #define VDASI_PROG_NONE 0xFF
+
+ u8 event_type;
+ #define VDASI_EVTTYPE_SECT_SCAN 0x01
+ #define VDASI_EVTTYPE_SECT_SCAN_PARITY 0x02
+ #define VDASI_EVTTYPE_SECT_SCAN_PARITY_FIX 0x03
+
+ u8 recurrences;
+ #define VDASI_RECUR_FOREVER 0x00
+
+ u32 id;
+ #define VDASI_ID_NONE 0x00
+
+ char grp_name[15];
+ u8 reserved[85];
+};
+
+
+struct __packed atto_vda_n_vcache_info {
+ u8 super_cap_status;
+ #define VDANVCI_SUPERCAP_NOT_PRESENT 0x00
+ #define VDANVCI_SUPERCAP_FULLY_CHARGED 0x01
+ #define VDANVCI_SUPERCAP_NOT_CHARGED 0x02
+
+ u8 nvcache_module_status;
+ #define VDANVCI_NVCACHEMODULE_NOT_PRESENT 0x00
+ #define VDANVCI_NVCACHEMODULE_PRESENT 0x01
+
+ u8 protection_mode;
+ #define VDANVCI_PROTMODE_HI_PROTECT 0x00
+ #define VDANVCI_PROTMODE_HI_PERFORM 0x01
+
+ u8 reserved[109];
+};
+
+
+struct __packed atto_vda_buzzer_info {
+ u8 status;
+ #define VDABUZZI_BUZZER_OFF 0x00
+ #define VDABUZZI_BUZZER_ON 0x01
+ #define VDABUZZI_BUZZER_LAST 0x02
+
+ u8 reserved[3];
+ u32 duration;
+ #define VDABUZZI_DURATION_INDEFINITE 0xffffffff
+
+ u8 reserved2[104];
+};
+
+
+struct __packed atto_vda_adapter_info {
+ u8 version;
+ #define VDAADAPINFO_VERSION0 0x00
+ #define VDAADAPINFO_VERSION VDAADAPINFO_VERSION0
+
+ u8 reserved;
+ signed short utc_offset;
+ u32 utc_time;
+ u32 features;
+ #define VDA_ADAP_FEAT_IDENT 0x0001
+ #define VDA_ADAP_FEAT_BUZZ_ERR 0x0002
+ #define VDA_ADAP_FEAT_UTC_TIME 0x0004
+
+ u32 valid_features;
+ char active_config[33];
+ u8 temp_count;
+ u8 fan_count;
+ u8 reserved3[61];
+};
+
+
+struct __packed atto_vda_temp_info {
+ u8 temp_index;
+ u8 max_op_temp;
+ u8 min_op_temp;
+ u8 op_temp_warn;
+ u8 temperature;
+ u8 type;
+ #define VDA_TEMP_TYPE_CPU 1
+
+ u8 reserved[106];
+};
+
+
+struct __packed atto_vda_fan_info {
+ u8 fan_index;
+ u8 status;
+ #define VDA_FAN_STAT_UNKNOWN 0
+ #define VDA_FAN_STAT_NORMAL 1
+ #define VDA_FAN_STAT_FAIL 2
+
+ u16 crit_pvdafaninfothreshold;
+ u16 warn_threshold;
+ u16 speed;
+ u8 reserved[104];
+};
+
+
+/* VDA management commands */
+
+#define VDAMGT_DEV_SCAN 0x00
+#define VDAMGT_DEV_INFO 0x01
+#define VDAMGT_DEV_CLEAN 0x02
+#define VDAMGT_DEV_IDENTIFY 0x03
+#define VDAMGT_DEV_IDENTSTOP 0x04
+#define VDAMGT_DEV_PT_INFO 0x05
+#define VDAMGT_DEV_FEATURES 0x06
+#define VDAMGT_DEV_PT_FEATURES 0x07
+#define VDAMGT_DEV_HEALTH_REQ 0x08
+#define VDAMGT_DEV_METRICS 0x09
+#define VDAMGT_DEV_INFO2 0x0A
+#define VDAMGT_DEV_OPERATION 0x0B
+#define VDAMGT_DEV_INFO2_BYADDR 0x0C
+#define VDAMGT_GRP_INFO 0x10
+#define VDAMGT_GRP_CREATE 0x11
+#define VDAMGT_GRP_DELETE 0x12
+#define VDAMGT_ADD_STORAGE 0x13
+#define VDAMGT_MEMBER_ADD 0x14
+#define VDAMGT_GRP_COMMIT 0x15
+#define VDAMGT_GRP_REBUILD 0x16
+#define VDAMGT_GRP_COMMIT_INIT 0x17
+#define VDAMGT_QUICK_RAID 0x18
+#define VDAMGT_GRP_FEATURES 0x19
+#define VDAMGT_GRP_COMMIT_INIT_AUTOMAP 0x1A
+#define VDAMGT_QUICK_RAID_INIT_AUTOMAP 0x1B
+#define VDAMGT_GRP_OPERATION 0x1C
+#define VDAMGT_CFG_SAVE 0x20
+#define VDAMGT_LAST_ERROR 0x21
+#define VDAMGT_ADAP_INFO 0x22
+#define VDAMGT_ADAP_FEATURES 0x23
+#define VDAMGT_TEMP_INFO 0x24
+#define VDAMGT_FAN_INFO 0x25
+#define VDAMGT_PART_INFO 0x30
+#define VDAMGT_PART_MAP 0x31
+#define VDAMGT_PART_UNMAP 0x32
+#define VDAMGT_PART_AUTOMAP 0x33
+#define VDAMGT_PART_SPLIT 0x34
+#define VDAMGT_PART_MERGE 0x35
+#define VDAMGT_SPARE_LIST 0x40
+#define VDAMGT_SPARE_ADD 0x41
+#define VDAMGT_SPARE_REMOVE 0x42
+#define VDAMGT_LOCAL_SPARE_ADD 0x43
+#define VDAMGT_SCHEDULE_EVENT 0x50
+#define VDAMGT_SCHEDULE_INFO 0x51
+#define VDAMGT_NVCACHE_INFO 0x60
+#define VDAMGT_NVCACHE_SET 0x61
+#define VDAMGT_BUZZER_INFO 0x70
+#define VDAMGT_BUZZER_SET 0x71
+
+
+struct __packed atto_vda_ae_hdr {
+ u8 bylength;
+ u8 byflags;
+ #define VDAAE_HDRF_EVENT_ACK 0x01
+
+ u8 byversion;
+ #define VDAAE_HDR_VER_0 0
+
+ u8 bytype;
+ #define VDAAE_HDR_TYPE_RAID 1
+ #define VDAAE_HDR_TYPE_LU 2
+ #define VDAAE_HDR_TYPE_DISK 3
+ #define VDAAE_HDR_TYPE_RESET 4
+ #define VDAAE_HDR_TYPE_LOG_INFO 5
+ #define VDAAE_HDR_TYPE_LOG_WARN 6
+ #define VDAAE_HDR_TYPE_LOG_CRIT 7
+ #define VDAAE_HDR_TYPE_LOG_FAIL 8
+ #define VDAAE_HDR_TYPE_NVC 9
+ #define VDAAE_HDR_TYPE_TLG_INFO 10
+ #define VDAAE_HDR_TYPE_TLG_WARN 11
+ #define VDAAE_HDR_TYPE_TLG_CRIT 12
+ #define VDAAE_HDR_TYPE_PWRMGT 13
+ #define VDAAE_HDR_TYPE_MUTE 14
+ #define VDAAE_HDR_TYPE_DEV 15
+};
+
+
+struct __packed atto_vda_ae_raid {
+ struct atto_vda_ae_hdr hdr;
+ u32 dwflags;
+ #define VDAAE_GROUP_STATE 0x00000001
+ #define VDAAE_RBLD_STATE 0x00000002
+ #define VDAAE_RBLD_PROG 0x00000004
+ #define VDAAE_MEMBER_CHG 0x00000008
+ #define VDAAE_PART_CHG 0x00000010
+ #define VDAAE_MEM_STATE_CHG 0x00000020
+
+ u8 bygroup_state;
+ #define VDAAE_RAID_INVALID 0
+ #define VDAAE_RAID_NEW 1
+ #define VDAAE_RAID_WAITING 2
+ #define VDAAE_RAID_ONLINE 3
+ #define VDAAE_RAID_DEGRADED 4
+ #define VDAAE_RAID_OFFLINE 5
+ #define VDAAE_RAID_DELETED 6
+ #define VDAAE_RAID_BASIC 7
+ #define VDAAE_RAID_EXTREME 8
+ #define VDAAE_RAID_UNKNOWN 9
+
+ u8 byrebuild_state;
+ #define VDAAE_RBLD_NONE 0
+ #define VDAAE_RBLD_REBUILD 1
+ #define VDAAE_RBLD_ERASE 2
+ #define VDAAE_RBLD_PATTERN 3
+ #define VDAAE_RBLD_CONV 4
+ #define VDAAE_RBLD_FULL_INIT 5
+ #define VDAAE_RBLD_QUICK_INIT 6
+ #define VDAAE_RBLD_SECT_SCAN 7
+ #define VDAAE_RBLD_SECT_SCAN_PARITY 8
+ #define VDAAE_RBLD_SECT_SCAN_PARITY_FIX 9
+ #define VDAAE_RBLD_RECOV_REBUILD 10
+ #define VDAAE_RBLD_UNKNOWN 11
+
+ u8 byrebuild_progress;
+ u8 op_status;
+ #define VDAAE_GRPOPSTAT_MASK 0x0F
+ #define VDAAE_GRPOPSTAT_INVALID 0x00
+ #define VDAAE_GRPOPSTAT_OK 0x01
+ #define VDAAE_GRPOPSTAT_FAULTED 0x02
+ #define VDAAE_GRPOPSTAT_HALTED 0x03
+ #define VDAAE_GRPOPSTAT_INT 0x04
+ #define VDAAE_GRPOPPROC_MASK 0xF0
+ #define VDAAE_GRPOPPROC_STARTABLE 0x10
+ #define VDAAE_GRPOPPROC_CANCELABLE 0x20
+ #define VDAAE_GRPOPPROC_RESUMABLE 0x40
+ #define VDAAE_GRPOPPROC_HALTABLE 0x80
+ char acname[15];
+ u8 byreserved;
+ u8 byreserved2[0x80 - 0x1C];
+};
+
+
+struct __packed atto_vda_ae_lu_tgt_lun {
+ u16 wtarget_id;
+ u8 bylun;
+ u8 byreserved;
+};
+
+
+struct __packed atto_vda_ae_lu_tgt_lun_raid {
+ u16 wtarget_id;
+ u8 bylun;
+ u8 byreserved;
+ u32 dwinterleave;
+ u32 dwblock_size;
+};
+
+
+struct __packed atto_vda_ae_lu {
+ struct atto_vda_ae_hdr hdr;
+ u32 dwevent;
+ #define VDAAE_LU_DISC 0x00000001
+ #define VDAAE_LU_LOST 0x00000002
+ #define VDAAE_LU_STATE 0x00000004
+ #define VDAAE_LU_PASSTHROUGH 0x10000000
+ #define VDAAE_LU_PHYS_ID 0x20000000
+
+ u8 bystate;
+ #define VDAAE_LU_UNDEFINED 0
+ #define VDAAE_LU_NOT_PRESENT 1
+ #define VDAAE_LU_OFFLINE 2
+ #define VDAAE_LU_ONLINE 3
+ #define VDAAE_LU_DEGRADED 4
+ #define VDAAE_LU_FACTORY_DISABLED 5
+ #define VDAAE_LU_DELETED 6
+ #define VDAAE_LU_BUSSCAN 7
+ #define VDAAE_LU_UNKNOWN 8
+
+ u8 byreserved;
+ u16 wphys_target_id;
+
+ union {
+ struct atto_vda_ae_lu_tgt_lun tgtlun;
+ struct atto_vda_ae_lu_tgt_lun_raid tgtlun_raid;
+ } id;
+};
+
+
+struct __packed atto_vda_ae_disk {
+ struct atto_vda_ae_hdr hdr;
+};
+
+
+#define VDAAE_LOG_STRSZ 64
+
+struct __packed atto_vda_ae_log {
+ struct atto_vda_ae_hdr hdr;
+ char aclog_ascii[VDAAE_LOG_STRSZ];
+};
+
+
+#define VDAAE_TLG_STRSZ 56
+
+struct __packed atto_vda_ae_timestamp_log {
+ struct atto_vda_ae_hdr hdr;
+ u32 dwtimestamp;
+ char aclog_ascii[VDAAE_TLG_STRSZ];
+};
+
+
+struct __packed atto_vda_ae_nvc {
+ struct atto_vda_ae_hdr hdr;
+};
+
+
+struct __packed atto_vda_ae_dev {
+ struct atto_vda_ae_hdr hdr;
+ struct atto_dev_addr devaddr;
+};
+
+
+union atto_vda_ae {
+ struct atto_vda_ae_hdr hdr;
+ struct atto_vda_ae_disk disk;
+ struct atto_vda_ae_lu lu;
+ struct atto_vda_ae_raid raid;
+ struct atto_vda_ae_log log;
+ struct atto_vda_ae_timestamp_log tslog;
+ struct atto_vda_ae_nvc nvcache;
+ struct atto_vda_ae_dev dev;
+};
+
+
+struct __packed atto_vda_date_and_time {
+ u8 flags;
+ #define VDA_DT_DAY_MASK 0x07
+ #define VDA_DT_DAY_NONE 0x00
+ #define VDA_DT_DAY_SUN 0x01
+ #define VDA_DT_DAY_MON 0x02
+ #define VDA_DT_DAY_TUE 0x03
+ #define VDA_DT_DAY_WED 0x04
+ #define VDA_DT_DAY_THU 0x05
+ #define VDA_DT_DAY_FRI 0x06
+ #define VDA_DT_DAY_SAT 0x07
+ #define VDA_DT_PM 0x40
+ #define VDA_DT_MILITARY 0x80
+
+ u8 seconds;
+ u8 minutes;
+ u8 hours;
+ u8 day;
+ u8 month;
+ u16 year;
+};
+
+#define SGE_LEN_LIMIT 0x003FFFFF /*! mask of segment length */
+#define SGE_LEN_MAX 0x003FF000 /*! maximum segment length */
+#define SGE_LAST 0x01000000 /*! last entry */
+#define SGE_ADDR_64 0x04000000 /*! 64-bit addressing flag */
+#define SGE_CHAIN 0x80000000 /*! chain descriptor flag */
+#define SGE_CHAIN_LEN 0x0000FFFF /*! mask of length in chain entries */
+#define SGE_CHAIN_SZ 0x00FF0000 /*! mask of size of chained buffer */
+
+
+struct __packed atto_vda_cfg_init {
+ struct atto_vda_date_and_time date_time;
+ u32 sgl_page_size;
+ u32 vda_version;
+ u32 fw_version;
+ u32 fw_build;
+ u32 fw_release;
+ u32 epoch_time;
+ u32 ioctl_tunnel;
+ #define VDA_ITF_MEM_RW 0x00000001
+ #define VDA_ITF_TRACE 0x00000002
+ #define VDA_ITF_SCSI_PASS_THRU 0x00000004
+ #define VDA_ITF_GET_DEV_ADDR 0x00000008
+ #define VDA_ITF_PHY_CTRL 0x00000010
+ #define VDA_ITF_CONN_CTRL 0x00000020
+ #define VDA_ITF_GET_DEV_INFO 0x00000040
+
+ u32 num_targets_backend;
+ u8 reserved[0x48];
+};
+
+
+/* configuration commands */
+
+#define VDA_CFG_INIT 0x00
+#define VDA_CFG_GET_INIT 0x01
+#define VDA_CFG_GET_INIT2 0x02
+
+
+/*! physical region descriptor (PRD) aka scatter/gather entry */
+
+struct __packed atto_physical_region_description {
+ u64 address;
+ u32 ctl_len;
+ #define PRD_LEN_LIMIT 0x003FFFFF
+ #define PRD_LEN_MAX 0x003FF000
+ #define PRD_NXT_PRD_CNT 0x0000007F
+ #define PRD_CHAIN 0x01000000
+ #define PRD_DATA 0x00000000
+ #define PRD_INT_SEL 0xF0000000
+ #define PRD_INT_SEL_F0 0x00000000
+ #define PRD_INT_SEL_F1 0x40000000
+ #define PRD_INT_SEL_F2 0x80000000
+ #define PRD_INT_SEL_F3 0xc0000000
+ #define PRD_INT_SEL_SRAM 0x10000000
+ #define PRD_INT_SEL_PBSR 0x20000000
+
+};
+
+/* Request types. NOTE that ALL requests have the same layout for the first
+ * few bytes.
+ */
+struct __packed atto_vda_req_header {
+ u32 length;
+ u8 function;
+ u8 variable1;
+ u8 chain_offset;
+ u8 sg_list_offset;
+ u32 handle;
+};
+
+
+#define FCP_CDB_SIZE 16
+
+struct __packed atto_vda_scsi_req {
+ u32 length;
+ u8 function; /* VDA_FUNC_SCSI */
+ u8 sense_len;
+ u8 chain_offset;
+ u8 sg_list_offset;
+ u32 handle;
+ u32 flags;
+ #define FCP_CMND_LUN_MASK 0x000000FF
+ #define FCP_CMND_TA_MASK 0x00000700
+ #define FCP_CMND_TA_SIMPL_Q 0x00000000
+ #define FCP_CMND_TA_HEAD_Q 0x00000100
+ #define FCP_CMND_TA_ORDRD_Q 0x00000200
+ #define FCP_CMND_TA_ACA 0x00000400
+ #define FCP_CMND_PRI_MASK 0x00007800
+ #define FCP_CMND_TM_MASK 0x00FF0000
+ #define FCP_CMND_ATS 0x00020000
+ #define FCP_CMND_CTS 0x00040000
+ #define FCP_CMND_LRS 0x00100000
+ #define FCP_CMND_TRS 0x00200000
+ #define FCP_CMND_CLA 0x00400000
+ #define FCP_CMND_TRM 0x00800000
+ #define FCP_CMND_DATA_DIR 0x03000000
+ #define FCP_CMND_WRD 0x01000000
+ #define FCP_CMND_RDD 0x02000000
+
+ u8 cdb[FCP_CDB_SIZE];
+ union {
+ struct __packed {
+ u64 ppsense_buf;
+ u16 target_id;
+ u8 iblk_cnt_prd;
+ u8 reserved;
+ };
+
+ struct atto_physical_region_description sense_buff_prd;
+ };
+
+ union {
+ struct atto_vda_sge sge[1];
+
+ u32 abort_handle;
+ u32 dwords[245];
+ struct atto_physical_region_description prd[1];
+ } u;
+};
+
+
+struct __packed atto_vda_flash_req {
+ u32 length;
+ u8 function; /* VDA_FUNC_FLASH */
+ u8 sub_func;
+ u8 chain_offset;
+ u8 sg_list_offset;
+ u32 handle;
+ u32 flash_addr;
+ u8 checksum;
+ u8 rsvd[3];
+
+ union {
+ struct {
+ char file_name[16]; /* 8.3 fname, NULL term, wc=* */
+ struct atto_vda_sge sge[1];
+ } file;
+
+ struct atto_vda_sge sge[1];
+ struct atto_physical_region_description prde[2];
+ } data;
+};
+
+
+struct __packed atto_vda_diag_req {
+ u32 length;
+ u8 function; /* VDA_FUNC_DIAG */
+ u8 sub_func;
+ #define VDA_DIAG_STATUS 0x00
+ #define VDA_DIAG_RESET 0x01
+ #define VDA_DIAG_PAUSE 0x02
+ #define VDA_DIAG_RESUME 0x03
+ #define VDA_DIAG_READ 0x04
+ #define VDA_DIAG_WRITE 0x05
+
+ u8 chain_offset;
+ u8 sg_list_offset;
+ u32 handle;
+ u32 rsvd;
+ u64 local_addr;
+ struct atto_vda_sge sge[1];
+};
+
+
+struct __packed atto_vda_ae_req {
+ u32 length;
+ u8 function; /* VDA_FUNC_AE */
+ u8 reserved1;
+ u8 chain_offset;
+ u8 sg_list_offset;
+ u32 handle;
+
+ union {
+ struct atto_vda_sge sge[1];
+ struct atto_physical_region_description prde[1];
+ };
+};
+
+
+struct __packed atto_vda_cli_req {
+ u32 length;
+ u8 function; /* VDA_FUNC_CLI */
+ u8 reserved1;
+ u8 chain_offset;
+ u8 sg_list_offset;
+ u32 handle;
+ u32 cmd_rsp_len;
+ struct atto_vda_sge sge[1];
+};
+
+
+struct __packed atto_vda_ioctl_req {
+ u32 length;
+ u8 function; /* VDA_FUNC_IOCTL */
+ u8 sub_func;
+ u8 chain_offset;
+ u8 sg_list_offset;
+ u32 handle;
+
+ union {
+ struct atto_vda_sge reserved_sge;
+ struct atto_physical_region_description reserved_prde;
+ };
+
+ union {
+ struct {
+ u32 ctrl_code;
+ u16 target_id;
+ u8 lun;
+ u8 reserved;
+ } csmi;
+ };
+
+ union {
+ struct atto_vda_sge sge[1];
+ struct atto_physical_region_description prde[1];
+ };
+};
+
+
+struct __packed atto_vda_cfg_req {
+ u32 length;
+ u8 function; /* VDA_FUNC_CFG */
+ u8 sub_func;
+ u8 rsvd1;
+ u8 sg_list_offset;
+ u32 handle;
+
+ union {
+ u8 bytes[116];
+ struct atto_vda_cfg_init init;
+ struct atto_vda_sge sge;
+ struct atto_physical_region_description prde;
+ } data;
+};
+
+
+struct __packed atto_vda_mgmt_req {
+ u32 length;
+ u8 function; /* VDA_FUNC_MGT */
+ u8 mgt_func;
+ u8 chain_offset;
+ u8 sg_list_offset;
+ u32 handle;
+ u8 scan_generation;
+ u8 payld_sglst_offset;
+ u16 dev_index;
+ u32 payld_length;
+ u32 pad;
+ union {
+ struct atto_vda_sge sge[2];
+ struct atto_physical_region_description prde[2];
+ };
+ struct atto_vda_sge payld_sge[1];
+};
+
+
+union atto_vda_req {
+ struct atto_vda_scsi_req scsi;
+ struct atto_vda_flash_req flash;
+ struct atto_vda_diag_req diag;
+ struct atto_vda_ae_req ae;
+ struct atto_vda_cli_req cli;
+ struct atto_vda_ioctl_req ioctl;
+ struct atto_vda_cfg_req cfg;
+ struct atto_vda_mgmt_req mgt;
+ u8 bytes[1024];
+};
+
+/* Outbound response structures */
+
+struct __packed atto_vda_scsi_rsp {
+ u8 scsi_stat;
+ u8 sense_len;
+ u8 rsvd[2];
+ u32 residual_length;
+};
+
+struct __packed atto_vda_flash_rsp {
+ u32 file_size;
+};
+
+struct __packed atto_vda_ae_rsp {
+ u32 length;
+};
+
+struct __packed atto_vda_cli_rsp {
+ u32 cmd_rsp_len;
+};
+
+struct __packed atto_vda_ioctl_rsp {
+ union {
+ struct {
+ u32 csmi_status;
+ u16 target_id;
+ u8 lun;
+ u8 reserved;
+ } csmi;
+ };
+};
+
+struct __packed atto_vda_cfg_rsp {
+ u16 vda_version;
+ u16 fw_release;
+ u32 fw_build;
+};
+
+struct __packed atto_vda_mgmt_rsp {
+ u32 length;
+ u16 dev_index;
+ u8 scan_generation;
+};
+
+union atto_vda_func_rsp {
+ struct atto_vda_scsi_rsp scsi_rsp;
+ struct atto_vda_flash_rsp flash_rsp;
+ struct atto_vda_ae_rsp ae_rsp;
+ struct atto_vda_cli_rsp cli_rsp;
+ struct atto_vda_ioctl_rsp ioctl_rsp;
+ struct atto_vda_cfg_rsp cfg_rsp;
+ struct atto_vda_mgmt_rsp mgt_rsp;
+ u32 dwords[2];
+};
+
+struct __packed atto_vda_ob_rsp {
+ u32 handle;
+ u8 req_stat;
+ u8 rsvd[3];
+
+ union atto_vda_func_rsp
+ func_rsp;
+};
+
+struct __packed atto_vda_ae_data {
+ u8 event_data[256];
+};
+
+struct __packed atto_vda_mgmt_data {
+ union {
+ u8 bytes[112];
+ struct atto_vda_devinfo dev_info;
+ struct atto_vda_grp_info grp_info;
+ struct atto_vdapart_info part_info;
+ struct atto_vda_dh_info dev_health_info;
+ struct atto_vda_metrics_info metrics_info;
+ struct atto_vda_schedule_info sched_info;
+ struct atto_vda_n_vcache_info nvcache_info;
+ struct atto_vda_buzzer_info buzzer_info;
+ } data;
+};
+
+union atto_vda_rsp_data {
+ struct atto_vda_ae_data ae_data;
+ struct atto_vda_mgmt_data mgt_data;
+ u8 sense_data[252];
+ #define SENSE_DATA_SZ 252;
+ u8 bytes[256];
+};
+
+#endif
diff --git a/drivers/scsi/esas2r/esas2r_vda.c b/drivers/scsi/esas2r/esas2r_vda.c
new file mode 100644
index 0000000..4ee6779
--- /dev/null
+++ b/drivers/scsi/esas2r/esas2r_vda.c
@@ -0,0 +1,521 @@
+/*
+ * linux/drivers/scsi/esas2r/esas2r_vda.c
+ * esas2r driver VDA firmware interface functions
+ *
+ * Copyright (c) 2001-2013 ATTO Technology, Inc.
+ * (mailto:linuxdrivers@attotech.com)
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+
+#include "esas2r.h"
+
+static u8 esas2r_vdaioctl_versions[] = {
+ ATTO_VDA_VER_UNSUPPORTED,
+ ATTO_VDA_FLASH_VER,
+ ATTO_VDA_VER_UNSUPPORTED,
+ ATTO_VDA_VER_UNSUPPORTED,
+ ATTO_VDA_CLI_VER,
+ ATTO_VDA_VER_UNSUPPORTED,
+ ATTO_VDA_CFG_VER,
+ ATTO_VDA_MGT_VER,
+ ATTO_VDA_GSV_VER
+};
+
+static void clear_vda_request(struct esas2r_request *rq);
+
+static void esas2r_complete_vda_ioctl(struct esas2r_adapter *a,
+ struct esas2r_request *rq);
+
+/* Prepare a VDA IOCTL request to be sent to the firmware. */
+bool esas2r_process_vda_ioctl(struct esas2r_adapter *a,
+ struct atto_ioctl_vda *vi,
+ struct esas2r_request *rq,
+ struct esas2r_sg_context *sgc)
+{
+ u32 datalen = 0;
+ struct atto_vda_sge *firstsg = NULL;
+ u8 vercnt = (u8)ARRAY_SIZE(esas2r_vdaioctl_versions);
+
+ vi->status = ATTO_STS_SUCCESS;
+ vi->vda_status = RS_PENDING;
+
+ if (vi->function >= vercnt) {
+ vi->status = ATTO_STS_INV_FUNC;
+ return false;
+ }
+
+ if (vi->version > esas2r_vdaioctl_versions[vi->function]) {
+ vi->status = ATTO_STS_INV_VERSION;
+ return false;
+ }
+
+ if (a->flags & AF_DEGRADED_MODE) {
+ vi->status = ATTO_STS_DEGRADED;
+ return false;
+ }
+
+ if (vi->function != VDA_FUNC_SCSI)
+ clear_vda_request(rq);
+
+ rq->vrq->scsi.function = vi->function;
+ rq->interrupt_cb = esas2r_complete_vda_ioctl;
+ rq->interrupt_cx = vi;
+
+ switch (vi->function) {
+ case VDA_FUNC_FLASH:
+
+ if (vi->cmd.flash.sub_func != VDA_FLASH_FREAD
+ && vi->cmd.flash.sub_func != VDA_FLASH_FWRITE
+ && vi->cmd.flash.sub_func != VDA_FLASH_FINFO) {
+ vi->status = ATTO_STS_INV_FUNC;
+ return false;
+ }
+
+ if (vi->cmd.flash.sub_func != VDA_FLASH_FINFO)
+ datalen = vi->data_length;
+
+ rq->vrq->flash.length = cpu_to_le32(datalen);
+ rq->vrq->flash.sub_func = vi->cmd.flash.sub_func;
+
+ memcpy(rq->vrq->flash.data.file.file_name,
+ vi->cmd.flash.data.file.file_name,
+ sizeof(vi->cmd.flash.data.file.file_name));
+
+ firstsg = rq->vrq->flash.data.file.sge;
+ break;
+
+ case VDA_FUNC_CLI:
+
+ datalen = vi->data_length;
+
+ rq->vrq->cli.cmd_rsp_len =
+ cpu_to_le32(vi->cmd.cli.cmd_rsp_len);
+ rq->vrq->cli.length = cpu_to_le32(datalen);
+
+ firstsg = rq->vrq->cli.sge;
+ break;
+
+ case VDA_FUNC_MGT:
+ {
+ u8 *cmdcurr_offset = sgc->cur_offset
+ - offsetof(struct atto_ioctl_vda, data)
+ + offsetof(struct atto_ioctl_vda, cmd)
+ + offsetof(struct atto_ioctl_vda_mgt_cmd,
+ data);
+ /*
+ * build the data payload SGL here first since
+ * esas2r_sgc_init() will modify the S/G list offset for the
+ * management SGL (which is built below where the data SGL is
+ * usually built).
+ */
+
+ if (vi->data_length) {
+ u32 payldlen = 0;
+
+ if (vi->cmd.mgt.mgt_func == VDAMGT_DEV_HEALTH_REQ
+ || vi->cmd.mgt.mgt_func == VDAMGT_DEV_METRICS) {
+ rq->vrq->mgt.payld_sglst_offset =
+ (u8)offsetof(struct atto_vda_mgmt_req,
+ payld_sge);
+
+ payldlen = vi->data_length;
+ datalen = vi->cmd.mgt.data_length;
+ } else if (vi->cmd.mgt.mgt_func == VDAMGT_DEV_INFO2
+ || vi->cmd.mgt.mgt_func ==
+ VDAMGT_DEV_INFO2_BYADDR) {
+ datalen = vi->data_length;
+ cmdcurr_offset = sgc->cur_offset;
+ } else {
+ vi->status = ATTO_STS_INV_PARAM;
+ return false;
+ }
+
+ /* Setup the length so building the payload SGL works */
+ rq->vrq->mgt.length = cpu_to_le32(datalen);
+
+ if (payldlen) {
+ rq->vrq->mgt.payld_length =
+ cpu_to_le32(payldlen);
+
+ esas2r_sgc_init(sgc, a, rq,
+ rq->vrq->mgt.payld_sge);
+ sgc->length = payldlen;
+
+ if (!esas2r_build_sg_list(a, rq, sgc)) {
+ vi->status = ATTO_STS_OUT_OF_RSRC;
+ return false;
+ }
+ }
+ } else {
+ datalen = vi->cmd.mgt.data_length;
+
+ rq->vrq->mgt.length = cpu_to_le32(datalen);
+ }
+
+ /*
+ * Now that the payload SGL is built, if any, setup to build
+ * the management SGL.
+ */
+ firstsg = rq->vrq->mgt.sge;
+ sgc->cur_offset = cmdcurr_offset;
+
+ /* Finish initializing the management request. */
+ rq->vrq->mgt.mgt_func = vi->cmd.mgt.mgt_func;
+ rq->vrq->mgt.scan_generation = vi->cmd.mgt.scan_generation;
+ rq->vrq->mgt.dev_index =
+ cpu_to_le32(vi->cmd.mgt.dev_index);
+
+ esas2r_nuxi_mgt_data(rq->vrq->mgt.mgt_func, &vi->cmd.mgt.data);
+ break;
+ }
+
+ case VDA_FUNC_CFG:
+
+ if (vi->data_length
+ || vi->cmd.cfg.data_length == 0) {
+ vi->status = ATTO_STS_INV_PARAM;
+ return false;
+ }
+
+ if (vi->cmd.cfg.cfg_func == VDA_CFG_INIT) {
+ vi->status = ATTO_STS_INV_FUNC;
+ return false;
+ }
+
+ rq->vrq->cfg.sub_func = vi->cmd.cfg.cfg_func;
+ rq->vrq->cfg.length = cpu_to_le32(vi->cmd.cfg.data_length);
+
+ if (vi->cmd.cfg.cfg_func == VDA_CFG_GET_INIT) {
+ memcpy(&rq->vrq->cfg.data,
+ &vi->cmd.cfg.data,
+ vi->cmd.cfg.data_length);
+
+ esas2r_nuxi_cfg_data(rq->vrq->cfg.sub_func,
+ &rq->vrq->cfg.data);
+ } else {
+ vi->status = ATTO_STS_INV_FUNC;
+
+ return false;
+ }
+
+ break;
+
+ case VDA_FUNC_GSV:
+
+ vi->cmd.gsv.rsp_len = vercnt;
+
+ memcpy(vi->cmd.gsv.version_info, esas2r_vdaioctl_versions,
+ vercnt);
+
+ vi->vda_status = RS_SUCCESS;
+ break;
+
+ default:
+
+ vi->status = ATTO_STS_INV_FUNC;
+ return false;
+ }
+
+ if (datalen) {
+ esas2r_sgc_init(sgc, a, rq, firstsg);
+ sgc->length = datalen;
+
+ if (!esas2r_build_sg_list(a, rq, sgc)) {
+ vi->status = ATTO_STS_OUT_OF_RSRC;
+ return false;
+ }
+ }
+
+ esas2r_start_request(a, rq);
+
+ return true;
+}
+
+static void esas2r_complete_vda_ioctl(struct esas2r_adapter *a,
+ struct esas2r_request *rq)
+{
+ struct atto_ioctl_vda *vi = (struct atto_ioctl_vda *)rq->interrupt_cx;
+
+ vi->vda_status = rq->req_stat;
+
+ switch (vi->function) {
+ case VDA_FUNC_FLASH:
+
+ if (vi->cmd.flash.sub_func == VDA_FLASH_FINFO
+ || vi->cmd.flash.sub_func == VDA_FLASH_FREAD)
+ vi->cmd.flash.data.file.file_size =
+ le32_to_cpu(rq->func_rsp.flash_rsp.file_size);
+
+ break;
+
+ case VDA_FUNC_MGT:
+
+ vi->cmd.mgt.scan_generation =
+ rq->func_rsp.mgt_rsp.scan_generation;
+ vi->cmd.mgt.dev_index = le16_to_cpu(
+ rq->func_rsp.mgt_rsp.dev_index);
+
+ if (vi->data_length == 0)
+ vi->cmd.mgt.data_length =
+ le32_to_cpu(rq->func_rsp.mgt_rsp.length);
+
+ esas2r_nuxi_mgt_data(rq->vrq->mgt.mgt_func, &vi->cmd.mgt.data);
+ break;
+
+ case VDA_FUNC_CFG:
+
+ if (vi->cmd.cfg.cfg_func == VDA_CFG_GET_INIT) {
+ struct atto_ioctl_vda_cfg_cmd *cfg = &vi->cmd.cfg;
+ struct atto_vda_cfg_rsp *rsp = &rq->func_rsp.cfg_rsp;
+
+ cfg->data_length =
+ cpu_to_le32(sizeof(struct atto_vda_cfg_init));
+ cfg->data.init.vda_version =
+ le32_to_cpu(rsp->vda_version);
+ cfg->data.init.fw_build = rsp->fw_build;
+
+ sprintf((char *)&cfg->data.init.fw_release,
+ "%1d.%02d",
+ (int)LOBYTE(le16_to_cpu(rsp->fw_release)),
+ (int)HIBYTE(le16_to_cpu(rsp->fw_release)));
+
+ if (LOWORD(LOBYTE(cfg->data.init.fw_build)) == 'A')
+ cfg->data.init.fw_version =
+ cfg->data.init.fw_build;
+ else
+ cfg->data.init.fw_version =
+ cfg->data.init.fw_release;
+ } else {
+ esas2r_nuxi_cfg_data(rq->vrq->cfg.sub_func,
+ &vi->cmd.cfg.data);
+ }
+
+ break;
+
+ case VDA_FUNC_CLI:
+
+ vi->cmd.cli.cmd_rsp_len =
+ le32_to_cpu(rq->func_rsp.cli_rsp.cmd_rsp_len);
+ break;
+
+ default:
+
+ break;
+ }
+}
+
+/* Build a flash VDA request. */
+void esas2r_build_flash_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ u8 sub_func,
+ u8 cksum,
+ u32 addr,
+ u32 length)
+{
+ struct atto_vda_flash_req *vrq = &rq->vrq->flash;
+
+ clear_vda_request(rq);
+
+ rq->vrq->scsi.function = VDA_FUNC_FLASH;
+
+ if (sub_func == VDA_FLASH_BEGINW
+ || sub_func == VDA_FLASH_WRITE
+ || sub_func == VDA_FLASH_READ)
+ vrq->sg_list_offset = (u8)offsetof(struct atto_vda_flash_req,
+ data.sge);
+
+ vrq->length = cpu_to_le32(length);
+ vrq->flash_addr = cpu_to_le32(addr);
+ vrq->checksum = cksum;
+ vrq->sub_func = sub_func;
+}
+
+/* Build a VDA management request. */
+void esas2r_build_mgt_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ u8 sub_func,
+ u8 scan_gen,
+ u16 dev_index,
+ u32 length,
+ void *data)
+{
+ struct atto_vda_mgmt_req *vrq = &rq->vrq->mgt;
+
+ clear_vda_request(rq);
+
+ rq->vrq->scsi.function = VDA_FUNC_MGT;
+
+ vrq->mgt_func = sub_func;
+ vrq->scan_generation = scan_gen;
+ vrq->dev_index = cpu_to_le16(dev_index);
+ vrq->length = cpu_to_le32(length);
+
+ if (vrq->length) {
+ if (a->flags & AF_LEGACY_SGE_MODE) {
+ vrq->sg_list_offset = (u8)offsetof(
+ struct atto_vda_mgmt_req, sge);
+
+ vrq->sge[0].length = cpu_to_le32(SGE_LAST | length);
+ vrq->sge[0].address = cpu_to_le64(
+ rq->vrq_md->phys_addr +
+ sizeof(union atto_vda_req));
+ } else {
+ vrq->sg_list_offset = (u8)offsetof(
+ struct atto_vda_mgmt_req, prde);
+
+ vrq->prde[0].ctl_len = cpu_to_le32(length);
+ vrq->prde[0].address = cpu_to_le64(
+ rq->vrq_md->phys_addr +
+ sizeof(union atto_vda_req));
+ }
+ }
+
+ if (data) {
+ esas2r_nuxi_mgt_data(sub_func, data);
+
+ memcpy(&rq->vda_rsp_data->mgt_data.data.bytes[0], data,
+ length);
+ }
+}
+
+/* Build a VDA asyncronous event (AE) request. */
+void esas2r_build_ae_req(struct esas2r_adapter *a, struct esas2r_request *rq)
+{
+ struct atto_vda_ae_req *vrq = &rq->vrq->ae;
+
+ clear_vda_request(rq);
+
+ rq->vrq->scsi.function = VDA_FUNC_AE;
+
+ vrq->length = cpu_to_le32(sizeof(struct atto_vda_ae_data));
+
+ if (a->flags & AF_LEGACY_SGE_MODE) {
+ vrq->sg_list_offset =
+ (u8)offsetof(struct atto_vda_ae_req, sge);
+ vrq->sge[0].length = cpu_to_le32(SGE_LAST | vrq->length);
+ vrq->sge[0].address = cpu_to_le64(
+ rq->vrq_md->phys_addr +
+ sizeof(union atto_vda_req));
+ } else {
+ vrq->sg_list_offset = (u8)offsetof(struct atto_vda_ae_req,
+ prde);
+ vrq->prde[0].ctl_len = cpu_to_le32(vrq->length);
+ vrq->prde[0].address = cpu_to_le64(
+ rq->vrq_md->phys_addr +
+ sizeof(union atto_vda_req));
+ }
+}
+
+/* Build a VDA CLI request. */
+void esas2r_build_cli_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ u32 length,
+ u32 cmd_rsp_len)
+{
+ struct atto_vda_cli_req *vrq = &rq->vrq->cli;
+
+ clear_vda_request(rq);
+
+ rq->vrq->scsi.function = VDA_FUNC_CLI;
+
+ vrq->length = cpu_to_le32(length);
+ vrq->cmd_rsp_len = cpu_to_le32(cmd_rsp_len);
+ vrq->sg_list_offset = (u8)offsetof(struct atto_vda_cli_req, sge);
+}
+
+/* Build a VDA IOCTL request. */
+void esas2r_build_ioctl_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ u32 length,
+ u8 sub_func)
+{
+ struct atto_vda_ioctl_req *vrq = &rq->vrq->ioctl;
+
+ clear_vda_request(rq);
+
+ rq->vrq->scsi.function = VDA_FUNC_IOCTL;
+
+ vrq->length = cpu_to_le32(length);
+ vrq->sub_func = sub_func;
+ vrq->sg_list_offset = (u8)offsetof(struct atto_vda_ioctl_req, sge);
+}
+
+/* Build a VDA configuration request. */
+void esas2r_build_cfg_req(struct esas2r_adapter *a,
+ struct esas2r_request *rq,
+ u8 sub_func,
+ u32 length,
+ void *data)
+{
+ struct atto_vda_cfg_req *vrq = &rq->vrq->cfg;
+
+ clear_vda_request(rq);
+
+ rq->vrq->scsi.function = VDA_FUNC_CFG;
+
+ vrq->sub_func = sub_func;
+ vrq->length = cpu_to_le32(length);
+
+ if (data) {
+ esas2r_nuxi_cfg_data(sub_func, data);
+
+ memcpy(&vrq->data, data, length);
+ }
+}
+
+static void clear_vda_request(struct esas2r_request *rq)
+{
+ u32 handle = rq->vrq->scsi.handle;
+
+ memset(rq->vrq, 0, sizeof(*rq->vrq));
+
+ rq->vrq->scsi.handle = handle;
+
+ rq->req_stat = RS_PENDING;
+
+ /* since the data buffer is separate clear that too */
+
+ memset(rq->data_buf, 0, ESAS2R_DATA_BUF_LEN);
+
+ /*
+ * Setup next and prev pointer in case the request is not going through
+ * esas2r_start_request().
+ */
+
+ INIT_LIST_HEAD(&rq->req_list);
+}
--
1.8.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH v4 10/10] SCSI: esas2r: Add Makefile, Kconfig, and MAINTAINERS files
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
` (8 preceding siblings ...)
2013-08-23 14:35 ` [PATCH v4 09/10] SCSI: esas2r: Add ATTO VDA Firmware API headers and functions. This API is used to control and manage the RAID adapter Bradley Grove
@ 2013-08-23 14:35 ` Bradley Grove
2013-08-26 9:59 ` [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver James Bottomley
10 siblings, 0 replies; 12+ messages in thread
From: Bradley Grove @ 2013-08-23 14:35 UTC (permalink / raw)
To: linux-scsi, jbottomley; +Cc: jseba, Bradley Grove
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
MAINTAINERS | 7 +++++++
drivers/scsi/Kconfig | 1 +
drivers/scsi/Makefile | 1 +
drivers/scsi/esas2r/Kconfig | 6 ++++++
drivers/scsi/esas2r/Makefile | 5 +++++
5 files changed, 20 insertions(+)
create mode 100644 drivers/scsi/esas2r/Kconfig
create mode 100644 drivers/scsi/esas2r/Makefile
diff --git a/MAINTAINERS b/MAINTAINERS
index 7cacc88..0a85613 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1547,6 +1547,13 @@ W: http://atmelwlandriver.sourceforge.net/
S: Maintained
F: drivers/net/wireless/atmel*
+ATTO EXPRESSSAS SAS/SATA RAID SCSI DRIVER
+M: Bradley Grove <linuxdrivers@attotech.com>
+L: linux-scsi@vger.kernel.org
+W: http://www.attotech.com
+S: Supported
+F: drivers/scsi/esas2r
+
AUDIT SUBSYSTEM
M: Al Viro <viro@zeniv.linux.org.uk>
M: Eric Paris <eparis@redhat.com>
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 48b2918..c298b76 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -601,6 +601,7 @@ config SCSI_ARCMSR
To compile this driver as a module, choose M here: the
module will be called arcmsr (modprobe arcmsr).
+source "drivers/scsi/esas2r/Kconfig"
source "drivers/scsi/megaraid/Kconfig.megaraid"
source "drivers/scsi/mpt2sas/Kconfig"
source "drivers/scsi/mpt3sas/Kconfig"
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index b607ba4..149bb6b 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -141,6 +141,7 @@ obj-$(CONFIG_SCSI_CXGB3_ISCSI) += libiscsi.o libiscsi_tcp.o cxgbi/
obj-$(CONFIG_SCSI_CXGB4_ISCSI) += libiscsi.o libiscsi_tcp.o cxgbi/
obj-$(CONFIG_SCSI_BNX2_ISCSI) += libiscsi.o bnx2i/
obj-$(CONFIG_BE2ISCSI) += libiscsi.o be2iscsi/
+obj-$(CONFIG_SCSI_ESAS2R) += esas2r/
obj-$(CONFIG_SCSI_PMCRAID) += pmcraid.o
obj-$(CONFIG_SCSI_VIRTIO) += virtio_scsi.o
obj-$(CONFIG_VMWARE_PVSCSI) += vmw_pvscsi.o
diff --git a/drivers/scsi/esas2r/Kconfig b/drivers/scsi/esas2r/Kconfig
new file mode 100644
index 0000000..80824f0
--- /dev/null
+++ b/drivers/scsi/esas2r/Kconfig
@@ -0,0 +1,5 @@
+config SCSI_ESAS2R
+ tristate "ATTO Technology's ExpressSAS RAID adapter driver"
+ depends on PCI && SCSI
+ ---help---
+ This driver supports the ATTO ExpressSAS R6xx SAS/SATA RAID controllers.
diff --git a/drivers/scsi/esas2r/Makefile b/drivers/scsi/esas2r/Makefile
new file mode 100644
index 0000000..c77160b
--- /dev/null
+++ b/drivers/scsi/esas2r/Makefile
@@ -0,0 +1,5 @@
+obj-$(CONFIG_SCSI_ESAS2R) += esas2r.o
+
+esas2r-objs := esas2r_log.o esas2r_disc.o esas2r_flash.o esas2r_init.o \
+ esas2r_int.o esas2r_io.o esas2r_ioctl.o esas2r_targdb.o \
+ esas2r_vda.o esas2r_main.o
--
1.8.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread* Re: [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver
2013-08-23 14:35 [PATCH v4 00/10] SCSI: esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver Bradley Grove
` (9 preceding siblings ...)
2013-08-23 14:35 ` [PATCH v4 10/10] SCSI: esas2r: Add Makefile, Kconfig, and MAINTAINERS files Bradley Grove
@ 2013-08-26 9:59 ` James Bottomley
10 siblings, 0 replies; 12+ messages in thread
From: James Bottomley @ 2013-08-26 9:59 UTC (permalink / raw)
To: Bradley Grove; +Cc: linux-scsi@vger.kernel.org, jseba@attotech.com
On Fri, 2013-08-23 at 10:35 -0400, Bradley Grove wrote:
> This is a new driver for ATTO Technology's ExpressSAS series of
> hardware RAID
> adapters. It supports the following adapters:
>
> - ExpressSAS R60F
> - ExpressSAS R680
> - ExpressSAS R608
> - ExpressSAS R644
OK, I put this in misc. I suspect I was the only person who actually
reviewed it, so I want to see what the static checkers report on it, but
if they don't spit back anything too bad, I think it can go into the
next merge window.
James
^ permalink raw reply [flat|nested] 12+ messages in thread