From: Sarang Radke Date: Wed, 11 Jan 2012 10:44:18 +0000 (-0800) Subject: [SCSI] qla4xxx: Clear the RISC interrupt bit during FW init X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=787649993230eb1d6fc326f13be285a840092538;p=mv-sheeva.git [SCSI] qla4xxx: Clear the RISC interrupt bit during FW init This patch fix kernel panic during kdump. Signed-off-by: Sarang Radke Signed-off-by: Vikas Chaudhary Reviewed-by: Mike Christie Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 1bdfa8120ac..90614f38b55 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -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 " diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c index 8d6bc1b2ff1..78f1111158d 100644 --- a/drivers/scsi/qla4xxx/ql4_nx.c +++ b/drivers/scsi/qla4xxx/ql4_nx.c @@ -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))