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[SCSI] qla4xxx: do not process interrupt unconditionally

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in mailbox command do not process interrupt unconditionally,
process interrupt only in polling mode

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Lalit Chandivade
2010-12-02 22:12:27 -08:00
committed by James Bottomley
parent 6790d4fecf
commit e6b07df8b0
1 changed files with 1 additions and 17 deletions
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18
drivers/scsi/qla4xxx/ql4_mbx.c
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@@ -81,23 +81,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
*/ */
spin_lock_irqsave(&ha->hardware_lock, flags); spin_lock_irqsave(&ha->hardware_lock, flags);
if (is_qla8022(ha)) { if (!is_qla8022(ha)) {
intr_status = readl(&ha->qla4_8xxx_reg->host_int);
if (intr_status & ISRX_82XX_RISC_INT) {
/* Service existing interrupt */
DEBUG2(printk("scsi%ld: %s: "
"servicing existing interrupt\n",
ha->host_no, __func__));
intr_status = readl(&ha->qla4_8xxx_reg->host_status);
ha->isp_ops->interrupt_service_routine(ha, intr_status);
clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
if (test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
test_bit(AF_INTx_ENABLED, &ha->flags))
qla4_8xxx_wr_32(ha,
ha->nx_legacy_intr.tgt_mask_reg,
0xfbff);
}
} else {
intr_status = readl(&ha->reg->ctrl_status); intr_status = readl(&ha->reg->ctrl_status);
if (intr_status & CSR_SCSI_PROCESSOR_INTR) { if (intr_status & CSR_SCSI_PROCESSOR_INTR) {
/* Service existing interrupt */ /* Service existing interrupt */