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[SCSI] qla4xxx: Use polling mode for disable interrupt mailbox completion 

Disable Interrupt MBX completion will disable the interrupt on
successful completion.  Fixed the bug where driver was waiting for
Interrupt to come in for its completion.  Now driver will poll for
disable interrupt MBX completion.

Signed-off-by: Sarang Radke <sarang.radke@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Sarang Radke 2011-03-23 08:07:33 -07:00 committed by James Bottomley
parent 3dea642afd
commit 5fa8b57313
1 changed files with 1 additions and 2 deletions
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3
drivers/scsi/qla4xxx/ql4_nx.c
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@ -2304,14 +2304,13 @@ qla4_8xxx_enable_intrs(struct scsi_qla_host *ha)
void
qla4_8xxx_disable_intrs(struct scsi_qla_host *ha)
{
if (test_bit(AF_INTERRUPTS_ON, &ha->flags))
if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
qla4_8xxx_mbx_intr_disable(ha);
spin_lock_irq(&ha->hardware_lock);
/* BIT 10 - set */
qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
spin_unlock_irq(&ha->hardware_lock);
clear_bit(AF_INTERRUPTS_ON, &ha->flags);
}
struct ql4_init_msix_entry {