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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 <ariele@broadcom.com>
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan
2013-09-18 01:50:38 -07:00
committed by David S. Miller
parent 4bdc944729
commit f78afb3563
7 changed files with 43 additions and 10 deletions
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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;
}