[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
2013-08-23T14:36:14Z

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