Skip to content

Commit

Permalink
bnx2: Fix problem of using wrong IRQ handler.
Browse files Browse the repository at this point in the history
The MSI-X handler was chosen before the call to pci_enable_msix().
If MSI-X was not available, the wrong MSI-X handler would be used in
INTA mode.  This would cause a screaming interrupt problem because
INTA would not be cleared by the MSI-X handler.

Fixed by assigning MSI-X handler after pci_enable_msix() returns
successfully.  Also update version to 1.9.3.

Thomas Chenault <thomas_chenault@dell.com> helped us find this problem.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
  • Loading branch information
Michael Chan authored and David S. Miller committed Mar 19, 2009
1 parent f10023a commit 6901031
Showing 1 changed file with 6 additions and 6 deletions.
12 changes: 6 additions & 6 deletions drivers/net/bnx2.c
Original file line number Diff line number Diff line change
Expand Up @@ -57,8 +57,8 @@

#define DRV_MODULE_NAME "bnx2"
#define PFX DRV_MODULE_NAME ": "
#define DRV_MODULE_VERSION "1.9.2"
#define DRV_MODULE_RELDATE "Feb 11, 2009"
#define DRV_MODULE_VERSION "1.9.3"
#define DRV_MODULE_RELDATE "March 17, 2009"

#define RUN_AT(x) (jiffies + (x))

Expand Down Expand Up @@ -5843,9 +5843,6 @@ bnx2_enable_msix(struct bnx2 *bp, int msix_vecs)
for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {
msix_ent[i].entry = i;
msix_ent[i].vector = 0;

snprintf(bp->irq_tbl[i].name, len, "%s-%d", dev->name, i);
bp->irq_tbl[i].handler = bnx2_msi_1shot;
}

rc = pci_enable_msix(bp->pdev, msix_ent, BNX2_MAX_MSIX_VEC);
Expand All @@ -5854,8 +5851,11 @@ bnx2_enable_msix(struct bnx2 *bp, int msix_vecs)

bp->irq_nvecs = msix_vecs;
bp->flags |= BNX2_FLAG_USING_MSIX | BNX2_FLAG_ONE_SHOT_MSI;
for (i = 0; i < BNX2_MAX_MSIX_VEC; i++)
for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {
bp->irq_tbl[i].vector = msix_ent[i].vector;
snprintf(bp->irq_tbl[i].name, len, "%s-%d", dev->name, i);
bp->irq_tbl[i].handler = bnx2_msi_1shot;
}
}

static void
Expand Down

0 comments on commit 6901031

Please sign in to comment.