[PATCH net-next v3 09/22] bnx2x: Allocate VF database in PF when VFs are present

Ariel Elior
2012-12-10T15:44:20Z

When A PF determines that it may have to manage SRIOV VFs it
allocates a database for this purpose. The database is intended to
keep track of the VF state, the resources allocated for each VF
(queues, interrupt vectors, etc), the state of the VF's queues.
When the VF loads the database is updated accordingly.
When A VF closes the database is consulted to determine which
resources need to be released (close queues against device, reclaim
interrupt vectors, etc).

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
drivers/net/ethernet/broadcom/bnx2x/Makefile | 2 +-
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 8 +
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 31 ++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h | 9 +
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 302 +++++++++++++++++++++
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h | 221 +++++++++++++++
6 files changed, 569 insertions(+), 4 deletions(-)
create mode 100644 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c

diff --git a/drivers/net/ethernet/broadcom/bnx2x/Makefile b/drivers/net/ethernet/broadcom/bnx2x/Makefile
index d862ea6..2ef6803 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/Makefile
+++ b/drivers/net/ethernet/broadcom/bnx2x/Makefile
@@ -4,4 +4,4 @@

obj-$(CONFIG_BNX2X) += bnx2x.o

-bnx2x-objs := bnx2x_main.o bnx2x_link.o bnx2x_cmn.o bnx2x_ethtool.o bnx2x_stats.o bnx2x_dcb.o bnx2x_sp.o bnx2x_vfpf.o
+bnx2x-objs := bnx2x_main.o bnx2x_link.o bnx2x_cmn.o bnx2x_ethtool.o bnx2x_stats.o bnx2x_dcb.o bnx2x_sp.o bnx2x_vfpf.o bnx2x_sriov.o
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 88cbdb9..254f9ee 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -13,9 +13,12 @@

#ifndef BNX2X_H
#define BNX2X_H
+
+#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/dma-mapping.h>
#include <linux/types.h>
+#include <linux/pci_regs.h>

/* compilation time flags */

@@ -966,6 +969,7 @@ extern struct workqueue_struct *bnx2x_wq;
#define BNX2X_MAX_NUM_OF_VFS 64
#define BNX2X_VF_CID_WND 0
#define BNX2X_CIDS_PER_VF (1 << BNX2X_VF_CID_WND)
+#define BNX2X_FIRST_VF_CID 256
#define BNX2X_VF_CIDS (BNX2X_MAX_NUM_OF_VFS * BNX2X_CIDS_PER_VF)
#define BNX2X_VF_ID_INVALID 0xFF

@@ -1117,6 +1121,7 @@ struct hw_context {
/* forward */
struct bnx2x_ilt;

+struct bnx2x_vfdb;

enum bnx2x_recovery_state {
BNX2X_RECOVERY_DONE,
@@ -1606,6 +1611,9 @@ struct bnx2x {
char fw_ver[32];
const struct firmware *firmware;

+ struct bnx2x_vfdb *vfdb;
+#define IS_SRIOV(bp) ((bp)->vfdb)
+
/* DCB support on/off */
u16 dcb_state;
#define BNX2X_DCB_STATE_OFF 0
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 977d06a..569acdc 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -125,8 +125,6 @@ static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, " Default debug msglevel");

-
-
struct workqueue_struct *bnx2x_wq;

enum bnx2x_board_type {
@@ -2209,7 +2207,6 @@ u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes)
return rc;
}

-
/* Calculates the sum of vn_min_rates.
It's needed for further normalizing of the min_rates.
Returns:
@@ -7273,12 +7270,21 @@ static int bnx2x_init_hw_func(struct bnx2x *bp)
ilt = BP_ILT(bp);
cdu_ilt_start = ilt->clients[ILT_CLIENT_CDU].start;

+ if (IS_SRIOV(bp))
+ cdu_ilt_start += BNX2X_FIRST_VF_CID/ILT_PAGE_CIDS;
+ cdu_ilt_start = bnx2x_iov_init_ilt(bp, cdu_ilt_start);
+
+ /* since BNX2X_FIRST_VF_CID > 0 the PF L2 cids precedes
+ * those of the VFs, so start line should be reset
+ */
+ cdu_ilt_start = ilt->clients[ILT_CLIENT_CDU].start;
for (i = 0; i < L2_ILT_LINES(bp); i++) {
ilt->lines[cdu_ilt_start + i].page = bp->context[i].vcxt;
ilt->lines[cdu_ilt_start + i].page_mapping =
bp->context[i].cxt_mapping;
ilt->lines[cdu_ilt_start + i].size = bp->context[i].size;
}
+
bnx2x_ilt_init_op(bp, INITOP_SET);

if (!CONFIGURE_NIC_MODE(bp)) {
@@ -7884,6 +7890,8 @@ int bnx2x_set_int_mode(struct bnx2x *bp)
/* must be called prior to any HW initializations */
static inline u16 bnx2x_cid_ilt_lines(struct bnx2x *bp)
{
+ if (IS_SRIOV(bp))
+ return (BNX2X_FIRST_VF_CID + BNX2X_VF_CIDS)/ILT_PAGE_CIDS;
return L2_ILT_LINES(bp);
}

@@ -12112,8 +12120,12 @@ static int bnx2x_set_qm_cid_count(struct bnx2x *bp)
{
int cid_count = BNX2X_L2_MAX_CID(bp);

+ if (IS_SRIOV(bp))
+ cid_count += BNX2X_VF_CIDS;
+
if (CNIC_SUPPORT(bp))
cid_count += CNIC_CID_MAX;
+
return roundup(cid_count, QM_CID_ROUND);
}

@@ -12319,6 +12331,16 @@ static int bnx2x_init_one(struct pci_dev *pdev,
goto init_one_exit;
}

+ /* Enable SRIOV if capability found in configuration space.
+ * Once the generic SR-IOV framework makes it in from the
+ * pci tree this will be revised, to allow dynamic control
+ * over the number of VFs. Right now, change the num of vfs
+ * param below to enable SR-IOV.
+ */
+ rc = bnx2x_iov_init_one(bp, int_mode, 0/*num vfs*/);
+ if (rc)
+ goto init_one_exit;
+
/* calc qm_cid_count */
bp->qm_cid_count = bnx2x_set_qm_cid_count(bp);
BNX2X_DEV_INFO("qm_cid_count %d\n", bp->qm_cid_count);
@@ -12442,6 +12464,9 @@ static void bnx2x_remove_one(struct pci_dev *pdev)

/* Make sure RESET task is not scheduled before continuing */
cancel_delayed_work_sync(&bp->sp_rtnl_task);
+
+ bnx2x_iov_remove_one(bp);
+
/* send message via vfpf channel to release the resources of this vf */
if (IS_VF(bp))
bnx2x_vfpf_release(bp);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
index 3f01526..00e4398 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
@@ -6305,6 +6305,15 @@
#define PCI_PM_DATA_B 0x414
#define PCI_ID_VAL1 0x434
#define PCI_ID_VAL2 0x438
+#define GRC_CONFIG_REG_PF_INIT_VF 0x624
+#define GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK 0xf
+/* First VF_NUM for PF is encoded in this register.
+ * The number of VFs assigned to a PF is assumed to be a multiple of 8.
+ * Software should program these bits based on Total Number of VFs \
+ * programmed for each PF.
+ * Since registers from 0x000-0x7ff are split across functions, each PF will
+ * have the same location for the same 4 bits
+ */

#define PXPCS_TL_CONTROL_5 0x814
#define PXPCS_TL_CONTROL_5_UNKNOWNTYPE_ERR_ATTN (1 << 29) /*WC*/
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
new file mode 100644
index 0000000..42d4c4d
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -0,0 +1,302 @@
+/* bnx2x_sriov.c: Broadcom Everest network driver.
+ *
+ * Copyright 2009-2012 Broadcom Corporation
+ *
+ * Unless you and Broadcom execute a separate written software license
+ * agreement governing use of this software, this software is licensed to you
+ * under the terms of the GNU General Public License version 2, available
+ * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
+ *
+ * Notwithstanding the above, under no circumstances may you combine this
+ * software in any way with any other Broadcom software provided under a
+ * license other than the GPL, without Broadcom's express prior written
+ * consent.
+ *
+ * Maintained by: Eilon Greenstein <eilong@broadcom.com>
+ * Written by: Shmulik Ravid <shmulikr@broadcom.com>
+ * Ariel Elior <ariele@broadcom.com>
+ *
+ */
+#include "bnx2x.h"
+#include "bnx2x_init.h"
+#include "bnx2x_sriov.h"
+int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
+{
+ int idx;
+ for_each_vf(bp, idx)
+ if (bnx2x_vf(bp, idx, abs_vfid) == abs_vfid)
+ break;
+ return idx;
+}
+
+static
+struct bnx2x_virtf *bnx2x_vf_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
+{
+ u16 idx = (u16)bnx2x_vf_idx_by_abs_fid(bp, abs_vfid);
+ return (idx < BNX2X_NR_VIRTFN(bp)) ? BP_VF(bp, idx) : NULL;
+}
+
+static int bnx2x_ari_enabled(struct pci_dev *dev)
+{
+ return dev->bus->self && dev->bus->self->ari_enabled;
+}
+
+static void
+bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid)
+{
+ struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
+ if (vf) {
+ if (!vf_sb_count(vf))
+ vf->igu_base_id = igu_sb_id;
+ ++vf_sb_count(vf);
+ }
+}
+
+static void
+bnx2x_get_vf_igu_cam_info(struct bnx2x *bp)
+{
+ int sb_id;
+ u32 val;
+ u8 fid;
+
+ /* IGU in normal mode - read CAM */
+ for (sb_id = 0; sb_id < IGU_REG_MAPPING_MEMORY_SIZE; sb_id++) {
+ val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + sb_id * 4);
+ if (!(val & IGU_REG_MAPPING_MEMORY_VALID))
+ continue;
+ fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID);
+ if (!(fid & IGU_FID_ENCODE_IS_PF))
+ bnx2x_vf_set_igu_info(bp, sb_id,
+ (fid & IGU_FID_VF_NUM_MASK));
+
+ DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n",
+ ((fid & IGU_FID_ENCODE_IS_PF) ? "PF" : "VF"),
+ ((fid & IGU_FID_ENCODE_IS_PF) ? (fid & IGU_FID_PF_NUM_MASK) :
+ (fid & IGU_FID_VF_NUM_MASK)), sb_id,
+ GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR));
+ }
+}
+
+static void __bnx2x_iov_free_vfdb(struct bnx2x *bp)
+{
+ if (bp->vfdb) {
+ kfree(bp->vfdb->vfqs);
+ kfree(bp->vfdb->vfs);
+ kfree(bp->vfdb);
+ }
+ bp->vfdb = NULL;
+}
+
+static int bnx2x_sriov_pci_cfg_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
+{
+ int pos;
+ struct pci_dev *dev = bp->pdev;
+
+ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
+ if (!pos) {
+ BNX2X_ERR("failed to find SRIOV capability in device\n");
+ return -ENODEV;
+ }
+
+ iov->pos = pos;
+ DP(BNX2X_MSG_IOV, "sriov ext pos %d\n", pos);
+ pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
+ pci_read_config_word(dev, pos + PCI_SRIOV_TOTAL_VF, &iov->total);
+ pci_read_config_word(dev, pos + PCI_SRIOV_INITIAL_VF, &iov->initial);
+ pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
+ pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
+ pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
+ pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);
+ pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
+
+ return 0;
+}
+
+static int bnx2x_sriov_info(struct bnx2x *bp, struct bnx2x_sriov *iov)
+{
+ u32 val;
+
+ /* read the SRIOV capability structure
+ * The fields can be read via configuration read or
+ * directly from the device (starting at offset PCICFG_OFFSET)
+ */
+ if (bnx2x_sriov_pci_cfg_info(bp, iov))
+ return -ENODEV;
+
+ /* get the number of SRIOV bars */
+ iov->nres = 0;
+
+ /* read the first_vfid */
+ val = REG_RD(bp, PCICFG_OFFSET + GRC_CONFIG_REG_PF_INIT_VF);
+ iov->first_vf_in_pf = ((val & GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK)
+ * 8) - (BNX2X_MAX_NUM_OF_VFS * BP_PATH(bp));
+
+ DP(BNX2X_MSG_IOV,
+ "IOV info[%d]: first vf %d, nres %d, cap 0x%x, ctrl 0x%x, total %d, initial %d, num vfs %d, offset %d, stride %d, page size 0x%x\n",
+ BP_FUNC(bp),
+ iov->first_vf_in_pf, iov->nres, iov->cap, iov->ctrl, iov->total,
+ iov->initial, iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);
+
+ return 0;
+}
+
+static u8 bnx2x_iov_get_max_queue_count(struct bnx2x *bp)
+{
+ int i;
+ u8 queue_count = 0;
+
+ if (IS_SRIOV(bp))
+ for_each_vf(bp, i)
+ queue_count += bnx2x_vf(bp, i, alloc_resc.num_sbs);
+
+ return queue_count;
+}
+
+/* must be called after PF bars are mapped */
+int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param,
+ int num_vfs_param)
+{
+ int err, i, qcount;
+ struct bnx2x_sriov *iov;
+ struct pci_dev *dev = bp->pdev;
+
+ bp->vfdb = NULL;
+
+ /* verify sriov capability is present in configuration space */
+ if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV)) {
+ DP(BNX2X_MSG_IOV, "no sriov - capability not found");
+ return 0;
+ }
+
+ /* verify is pf */
+ if (IS_VF(bp))
+ return 0;
+
+ /* verify chip revision */
+ if (CHIP_IS_E1x(bp))
+ return 0;
+
+ /* check if SRIOV support is turned off */
+ if (!num_vfs_param)
+ return 0;
+
+ /* SRIOV assumes that num of PF CIDs < BNX2X_FIRST_VF_CID */
+ if (BNX2X_L2_MAX_CID(bp) >= BNX2X_FIRST_VF_CID) {
+ BNX2X_ERR("PF cids %d are overspilling into vf space (starts at %d). Abort SRIOV",
+ BNX2X_L2_MAX_CID(bp), BNX2X_FIRST_VF_CID);
+ return 0;
+ }
+
+ /* SRIOV can be enabled only with MSIX */
+ if (int_mode_param == BNX2X_INT_MODE_MSI ||
+ int_mode_param == BNX2X_INT_MODE_INTX) {
+ BNX2X_ERR("Forced MSI/INTx mode is incompatible with SRIOV\n");
+ return 0;
+ }
+
+ /* verify ari is enabled */
+ if (!bnx2x_ari_enabled(bp->pdev)) {
+ BNX2X_ERR("ARI not supported, SRIOV can not be enabled\n");
+ return 0;
+ }
+
+ /* verify igu is in normal mode */
+ if (CHIP_INT_MODE_IS_BC(bp)) {
+ BNX2X_ERR("IGU not normal mode, SRIOV can not be enabled\n");
+ return 0;
+ }
+
+ /* allocate the vfs database */
+ bp->vfdb = kzalloc(sizeof(*(bp->vfdb)), GFP_KERNEL);
+ if (!bp->vfdb) {
+ BNX2X_ERR("failed to allocate vf database\n");
+ err = -ENOMEM;
+ goto failed;
+ }
+
+ /* get the sriov info - Linux already collected all the pertinent
+ * information, however the sriov structure is for the private use
+ * of the pci module. Also we want this information regardless
+ * of the hyper-visor.
+ */
+ iov = &(bp->vfdb->sriov);
+ err = bnx2x_sriov_info(bp, iov);
+ if (err)
+ goto failed;
+
+ /* SR-IOV capability was enabled but there are no VFs*/
+ if (iov->total == 0)
+ goto failed;
+
+ /* calcuate the actual number of VFs */
+ iov->nr_virtfn = min_t(u16, iov->total, (u16)num_vfs_param);
+
+ /* allcate the vf array */
+ bp->vfdb->vfs = kzalloc(sizeof(struct bnx2x_virtf) *
+ BNX2X_NR_VIRTFN(bp), GFP_KERNEL);
+ if (!bp->vfdb->vfs) {
+ BNX2X_ERR("failed to allocate vf array\n");
+ err = -ENOMEM;
+ goto failed;
+ }
+
+ /* Initial VF init - index and abs_vfid - nr_virtfn must be set */
+ for_each_vf(bp, i) {
+ bnx2x_vf(bp, i, index) = i;
+ bnx2x_vf(bp, i, abs_vfid) = iov->first_vf_in_pf + i;
+ bnx2x_vf(bp, i, state) = VF_FREE;
+ INIT_LIST_HEAD(&bnx2x_vf(bp, i, op_list_head));
+ mutex_init(&bnx2x_vf(bp, i, op_mutex));
+ bnx2x_vf(bp, i, op_current) = CHANNEL_TLV_NONE;
+ }
+
+ /* re-read the IGU CAM for VFs - index and abs_vfid must be set */
+ bnx2x_get_vf_igu_cam_info(bp);
+
+ /* get the total queue count and allocate the global queue arrays */
+ qcount = bnx2x_iov_get_max_queue_count(bp);
+
+ /* allocate the queue arrays for all VFs */
+ bp->vfdb->vfqs = kzalloc(qcount * sizeof(struct bnx2x_vf_queue),
+ GFP_KERNEL);
+ if (!bp->vfdb->vfqs) {
+ BNX2X_ERR("failed to allocate vf queue array\n");
+ err = -ENOMEM;
+ goto failed;
+ }
+
+ return 0;
+failed:
+ DP(BNX2X_MSG_IOV, "Failed err=%d\n", err);
+ __bnx2x_iov_free_vfdb(bp);
+ return err;
+}
+
+/* called by bnx2x_init_hw_func, returns the next ilt line */
+int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line)
+{
+ int i;
+ struct bnx2x_ilt *ilt = BP_ILT(bp);
+
+ if (!IS_SRIOV(bp))
+ return line;
+
+ /* set vfs ilt lines */
+ for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) {
+ struct hw_dma *hw_cxt = BP_VF_CXT_PAGE(bp, i);
+ ilt->lines[line+i].page = hw_cxt->addr;
+ ilt->lines[line+i].page_mapping = hw_cxt->mapping;
+ ilt->lines[line+i].size = hw_cxt->size; /* doesn't matter */
+ }
+ return line + i;
+}
+
+void bnx2x_iov_remove_one(struct bnx2x *bp)
+{
+ /* if SRIOV is not enabled there's nothing to do */
+ if (!IS_SRIOV(bp))
+ return;
+
+ /* free vf database */
+ __bnx2x_iov_free_vfdb(bp);
+}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index 6d0df33..b9b0583 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -19,11 +19,232 @@
#ifndef BNX2X_SRIOV_H
#define BNX2X_SRIOV_H

+/* The bnx2x device structure holds vfdb structure described below.
+ * The VF array is indexed by the relative vfid.
+ */
+struct bnx2x_sriov {
+ u32 first_vf_in_pf;
+
+ /* standard SRIOV capability fields, mostly for debugging */
+ int pos; /* capability position */
+ int nres; /* number of resources */
+ u32 cap; /* SR-IOV Capabilities */
+ u16 ctrl; /* SR-IOV Control */
+ u16 total; /* total VFs associated with the PF */
+ u16 initial; /* initial VFs associated with the PF */
+ u16 nr_virtfn; /* number of VFs available */
+ u16 offset; /* first VF Routing ID offset */
+ u16 stride; /* following VF stride */
+ u32 pgsz; /* page size for BAR alignment */
+ u8 link; /* Function Dependency Link */
+};
+
+/* bars */
+struct bnx2x_vf_bar {
+ u64 bar;
+ u32 size;
+};
+
+/* vf queue (used both for rx or tx) */
+struct bnx2x_vf_queue {
+ struct eth_context *cxt;
+
+ /* MACs object */
+ struct bnx2x_vlan_mac_obj mac_obj;
+
+ /* VLANs object */
+ struct bnx2x_vlan_mac_obj vlan_obj;
+ atomic_t vlan_count; /* 0 means vlan-0 is set ~ untagged */
+
+ /* Queue Slow-path State object */
+ struct bnx2x_queue_sp_obj sp_obj;
+
+ u32 cid;
+ u16 index;
+ u16 sb_idx;
+};
+
+/* struct bnx2x_vfop_qctor_params - prepare queue construction parameters:
+ * q-init, q-setup and SB index
+ */
+struct bnx2x_vfop_qctor_params {
+ struct bnx2x_queue_state_params qstate;
+ struct bnx2x_queue_setup_params prep_qsetup;
+};
+
+/* VFOP parameters (one copy per VF) */
+union bnx2x_vfop_params {
+ struct bnx2x_vlan_mac_ramrod_params vlan_mac;
+ struct bnx2x_rx_mode_ramrod_params rx_mode;
+ struct bnx2x_mcast_ramrod_params mcast;
+ struct bnx2x_config_rss_params rss;
+ struct bnx2x_vfop_qctor_params qctor;
+};
+
+/* forward */
+struct bnx2x_virtf;
+/* vf context */
+struct bnx2x_virtf {
+ u16 cfg_flags;
+#define VF_CFG_STATS 0x0001
+#define VF_CFG_FW_FC 0x0002
+#define VF_CFG_TPA 0x0004
+#define VF_CFG_INT_SIMD 0x0008
+#define VF_CACHE_LINE 0x0010
+
+ u8 state;
+#define VF_FREE 0 /* VF ready to be acquired holds no resc */
+#define VF_ACQUIRED 1 /* VF aquired, but not initalized */
+#define VF_ENABLED 2 /* VF Enabled */
+#define VF_RESET 3 /* VF FLR'd, pending cleanup */
+
+ /* non 0 during flr cleanup */
+ u8 flr_clnup_stage;
+#define VF_FLR_CLN 1 /* reclaim resources and do 'final cleanup'
+ * sans the end-wait
+ */
+#define VF_FLR_ACK 2 /* ACK flr notification */
+#define VF_FLR_EPILOG 3 /* wait for VF remnants to dissipate in the HW
+ * ~ final cleanup' end wait
+ */
+
+ /* dma */
+ dma_addr_t fw_stat_map; /* valid iff VF_CFG_STATS */
+ dma_addr_t spq_map;
+ dma_addr_t bulletin_map;
+
+ /* Allocated resources counters. Before the VF is acquired, the
+ * counters hold the following values:
+ *
+ * - xxq_count = 0 as the queues memory is not allocated yet.
+ *
+ * - sb_count = The number of status blocks configured for this VF in
+ * the IGU CAM. Initially read during probe.
+ *
+ * - xx_rules_count = The number of rules statically and equally
+ * allocated for each VF, during PF load.
+ */
+ struct vf_pf_resc_request alloc_resc;
+#define vf_rxq_count(vf) ((vf)->alloc_resc.num_rxqs)
+#define vf_txq_count(vf) ((vf)->alloc_resc.num_txqs)
+#define vf_sb_count(vf) ((vf)->alloc_resc.num_sbs)
+#define vf_mac_rules_cnt(vf) ((vf)->alloc_resc.num_mac_filters)
+#define vf_vlan_rules_cnt(vf) ((vf)->alloc_resc.num_vlan_filters)
+#define vf_mc_rules_cnt(vf) ((vf)->alloc_resc.num_mc_filters)
+
+ u8 sb_count; /* actual number of SBs */
+ u8 igu_base_id; /* base igu status block id */
+
+ struct bnx2x_vf_queue *vfqs;
+#define bnx2x_vfq(vf, nr, var) ((vf)->vfqs[(nr)].var)
+
+ u8 index; /* index in the vf array */
+ u8 abs_vfid;
+ u8 sp_cl_id;
+ u32 error; /* 0 means all's-well */
+
+ /* BDF */
+ unsigned int bus;
+ unsigned int devfn;
+
+ /* bars */
+ struct bnx2x_vf_bar bars[PCI_SRIOV_NUM_BARS];
+
+ /* set-mac ramrod state 1-pending, 0-done */
+ unsigned long filter_state;
+
+ /* leading rss client id ~~ the client id of the first rxq, must be
+ * set for each txq.
+ */
+ int leading_rss;
+
+ /* MCAST object */
+ struct bnx2x_mcast_obj mcast_obj;
+
+ /* RSS configuration object */
+ struct bnx2x_rss_config_obj rss_conf_obj;
+
+ /* slow-path operations */
+ atomic_t op_in_progress;
+ int op_rc;
+ bool op_wait_blocking;
+ struct list_head op_list_head;
+ union bnx2x_vfop_params op_params;
+ struct mutex op_mutex; /* one vfop at a time mutex */
+ enum channel_tlvs op_current;
+};
+
+#define BNX2X_NR_VIRTFN(bp) ((bp)->vfdb->sriov.nr_virtfn)
+
+#define for_each_vf(bp, var) \
+ for ((var) = 0; (var) < BNX2X_NR_VIRTFN(bp); (var)++)
+
struct bnx2x_vf_mbx_msg {
union vfpf_tlvs req;
union pfvf_tlvs resp;
};

+struct bnx2x_vf_mbx {
+ struct bnx2x_vf_mbx_msg *msg;
+ dma_addr_t msg_mapping;
+
+ /* VF GPA address */
+ u32 vf_addr_lo;
+ u32 vf_addr_hi;
+
+ struct vfpf_first_tlv first_tlv; /* saved VF request header */
+
+ u8 flags;
+#define VF_MSG_INPROCESS 0x1 /* failsafe - the FW should prevent
+ * more then one pending msg
+ */
+};
+
+struct hw_dma {
+ void *addr;
+ dma_addr_t mapping;
+ size_t size;
+};
+
+struct bnx2x_vfdb {
+
+#define BP_VFDB(bp) ((bp)->vfdb)
+ /* vf array */
+ struct bnx2x_virtf *vfs;
+#define BP_VF(bp, idx) (&((bp)->vfdb->vfs[(idx)]))
+#define bnx2x_vf(bp, idx, var) ((bp)->vfdb->vfs[(idx)].var)
+
+ /* queue array - for all vfs */
+ struct bnx2x_vf_queue *vfqs;
+
+ /* vf HW contexts */
+ struct hw_dma context[BNX2X_VF_CIDS/ILT_PAGE_CIDS];
+#define BP_VF_CXT_PAGE(bp, i) (&(bp)->vfdb->context[(i)])
+
+ /* SR-IOV information */
+ struct bnx2x_sriov sriov;
+ struct hw_dma mbx_dma;
+#define BP_VF_MBX_DMA(bp) (&((bp)->vfdb->mbx_dma))
+ struct bnx2x_vf_mbx mbxs[BNX2X_MAX_NUM_OF_VFS];
+#define BP_VF_MBX(bp, vfid) (&((bp)->vfdb->mbxs[(vfid)]))
+
+ struct hw_dma sp_dma;
+#define bnx2x_vf_sp(bp, vf, field) ((bp)->vfdb->sp_dma.addr + \
+ (vf)->index * sizeof(struct bnx2x_vf_sp) + \
+ offsetof(struct bnx2x_vf_sp, field))
+#define bnx2x_vf_sp_map(bp, vf, field) ((bp)->vfdb->sp_dma.mapping + \
+ (vf)->index * sizeof(struct bnx2x_vf_sp) + \
+ offsetof(struct bnx2x_vf_sp, field))
+
+#define FLRD_VFS_DWORDS (BNX2X_MAX_NUM_OF_VFS / 32)
+ u32 flrd_vfs[FLRD_VFS_DWORDS];
+};
+
+/* global iov routines */
+int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line);
+int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param, int num_vfs_param);
+void bnx2x_iov_remove_one(struct bnx2x *bp);
+int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid);
void bnx2x_add_tlv(struct bnx2x *bp, void *tlvs_list, u16 offset, u16 type,
u16 length);
void bnx2x_vfpf_prep(struct bnx2x *bp, struct vfpf_first_tlv *first_tlv,
--
1.7.9.GIT