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Commit e6b07df8 authored Dec 02, 2010 by Lalit Chandivade Committed by James Bottomley Dec 21, 2010

[SCSI] qla4xxx: do not process interrupt unconditionally



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>

parent 6790d4fe

drivers/scsi/qla4xxx/ql4_mbx.c

+1 −17

Original line number	Diff line number	Diff line
		@@ -81,23 +81,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
		*/
		spin_lock_irqsave(&ha->hardware_lock, flags);

		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 {
		if (!is_qla8022(ha)) {
		intr_status = readl(&ha->reg->ctrl_status);
		if (intr_status & CSR_SCSI_PROCESSOR_INTR) {
		/* Service existing interrupt */