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bnx2x, cnic, bnx2i, bnx2fc: Fix bnx2i and bnx2fc regressions.

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commit b9871bcfd2
    bnx2x: VF RSS support - PF side

changed the configuration of the doorbell HW and it broke iSCSI and FCoE.
We fix this by making compatible changes to the doorbell address in bnx2i
and bnx2fc.  For the userspace driver, we need to pass a modified CID
so that the existing userspace driver will calculate the correct doorbell
address and continue to work.

Signed-off-by: Ariel Elior <[email protected]>
Signed-off-by: Eddie Wai <[email protected]>
Signed-off-by: Michael Chan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Michael Chan 2013-09-18 01:50:38 -07:00 • committed by David S. Miller
commit f78afb3563
7 changed files with 43 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/scsi/bnx2fc/bnx2fc.h
View file

@ -105,7 +105,7 @@
#define BNX2FC_RQ_WQE_SIZE (BNX2FC_RQ_BUF_SZ)
#define BNX2FC_XFERQ_WQE_SIZE (sizeof(struct fcoe_xfrqe))
#define BNX2FC_CONFQ_WQE_SIZE (sizeof(struct fcoe_confqe))
#define BNX2FC_5771X_DB_PAGE_SIZE 128
#define BNX2X_DB_SHIFT 3
#define BNX2FC_TASK_SIZE 128
#define BNX2FC_TASKS_PER_PAGE (PAGE_SIZE/BNX2FC_TASK_SIZE)

3
drivers/scsi/bnx2fc/bnx2fc_hwi.c
View file

@ -1421,8 +1421,7 @@ int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt)
reg_base = pci_resource_start(hba->pcidev,
BNX2X_DOORBELL_PCI_BAR);
reg_off = BNX2FC_5771X_DB_PAGE_SIZE *
(context_id & 0x1FFFF) + DPM_TRIGER_TYPE;
reg_off = (1 << BNX2X_DB_SHIFT) * (context_id & 0x1FFFF);
tgt->ctx_base = ioremap_nocache(reg_base + reg_off, 4);
if (!tgt->ctx_base)
return -ENOMEM;

2
drivers/scsi/bnx2i/bnx2i.h
View file

@ -64,7 +64,7 @@
#define MAX_PAGES_PER_CTRL_STRUCT_POOL 8
#define BNX2I_RESERVED_SLOW_PATH_CMD_SLOTS 4
#define BNX2I_5771X_DBELL_PAGE_SIZE 128
#define BNX2X_DB_SHIFT 3
/* 5706/08 hardware has limit on maximum buffer size per BD it can handle */
#define MAX_BD_LENGTH 65535

3
drivers/scsi/bnx2i/bnx2i_hwi.c
View file

@ -2738,8 +2738,7 @@ int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep)
if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) {
reg_base = pci_resource_start(ep->hba->pcidev,
BNX2X_DOORBELL_PCI_BAR);
reg_off = BNX2I_5771X_DBELL_PAGE_SIZE * (cid_num & 0x1FFFF) +
DPM_TRIGER_TYPE;
reg_off = (1 << BNX2X_DB_SHIFT) * (cid_num & 0x1FFFF);
ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off, 4);
goto arm_cq;
}