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[SCSI] bfa: Fix to process mbox interrupts only if interrupts are enabled in INTx mode.

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- Made changes to process mbox and error interrupts only if interrupts are
  enabled, when running in INTx mode.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Krishna Gudipati 2012-08-22 19:52:18 -07:00 committed by James Bottomley
parent 881c1b3c48
commit 9aec024975
2 changed files with 9 additions and 1 deletions
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7
drivers/scsi/bfa/bfa_core.c
View File

@ -775,6 +775,7 @@ bfa_intx(struct bfa_s *bfa)
if (!intr) if (!intr)
return BFA_TRUE; return BFA_TRUE;
if (bfa->intr_enabled)
bfa_msix_lpu_err(bfa, intr); bfa_msix_lpu_err(bfa, intr);
return BFA_TRUE; return BFA_TRUE;
@ -803,11 +804,17 @@ bfa_isr_enable(struct bfa_s *bfa)
writel(~umsk, bfa->iocfc.bfa_regs.intr_mask); writel(~umsk, bfa->iocfc.bfa_regs.intr_mask);
bfa->iocfc.intr_mask = ~umsk; bfa->iocfc.intr_mask = ~umsk;
bfa_isr_mode_set(bfa, bfa->msix.nvecs != 0); bfa_isr_mode_set(bfa, bfa->msix.nvecs != 0);
/*
* Set the flag indicating successful enabling of interrupts
*/
bfa->intr_enabled = BFA_TRUE;
} }
void void
bfa_isr_disable(struct bfa_s *bfa) bfa_isr_disable(struct bfa_s *bfa)
{ {
bfa->intr_enabled = BFA_FALSE;
bfa_isr_mode_set(bfa, BFA_FALSE); bfa_isr_mode_set(bfa, BFA_FALSE);
writel(-1L, bfa->iocfc.bfa_regs.intr_mask); writel(-1L, bfa->iocfc.bfa_regs.intr_mask);
bfa_msix_uninstall(bfa); bfa_msix_uninstall(bfa);

1
drivers/scsi/bfa/bfa_modules.h
View File

@ -121,6 +121,7 @@ struct bfa_s {
bfa_boolean_t fcs; /* FCS is attached to BFA */ bfa_boolean_t fcs; /* FCS is attached to BFA */
struct bfa_msix_s msix; struct bfa_msix_s msix;
int bfa_aen_seq; int bfa_aen_seq;
bfa_boolean_t intr_enabled; /* Status of interrupts */
}; };
extern bfa_boolean_t bfa_auto_recover; extern bfa_boolean_t bfa_auto_recover;