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[SCSI] qla4xxx: Clear the RISC interrupt bit during FW init

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This patch fix kernel panic during kdump.

Signed-off-by: Sarang Radke <[email protected]>
Signed-off-by: Vikas Chaudhary <[email protected]>
Reviewed-by: Mike Christie <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
This commit is contained in:
Sarang Radke 2012-01-11 02:44:18 -08:00 • committed by James Bottomley
commit 7876499932
2 changed files with 8 additions and 0 deletions
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3
drivers/scsi/qla4xxx/ql4_init.c
View file

@ -697,6 +697,9 @@ int qla4xxx_start_firmware(struct scsi_qla_host *ha)
writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
&ha->reg->ctrl_status);
readl(&ha->reg->ctrl_status);
writel(set_rmask(CSR_SCSI_COMPLETION_INTR),
&ha->reg->ctrl_status);
readl(&ha->reg->ctrl_status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
DEBUG2(printk("scsi%ld: %s: Get firmware "

5
drivers/scsi/qla4xxx/ql4_nx.c
View file

@ -1875,6 +1875,11 @@ exit:
int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
{
int retval;
/* clear the interrupt */
writel(0, &ha->qla4_8xxx_reg->host_int);
readl(&ha->qla4_8xxx_reg->host_int);
retval = qla4_8xxx_device_state_handler(ha);
if (retval == QLA_SUCCESS && !test_bit(AF_INIT_DONE, &ha->flags))