summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/qla2xxx/qla_isr.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_isr.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_isr.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index dcfb24b..f61c2fe 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -6,6 +6,7 @@
*/
#include "qla_def.h"
+#include <linux/delay.h>
#include <scsi/scsi_tcq.h>
static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
@@ -1484,6 +1485,52 @@ qla24xx_process_response_queue(struct scsi_qla_host *ha)
WRT_REG_DWORD(&reg->rsp_q_out, ha->rsp_ring_index);
}
+static void
+qla2xxx_check_risc_status(scsi_qla_host_t *ha)
+{
+ int rval;
+ uint32_t cnt;
+ struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+
+ if (!IS_QLA25XX(ha))
+ return;
+
+ rval = QLA_SUCCESS;
+ WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
+ RD_REG_DWORD(&reg->iobase_addr);
+ WRT_REG_DWORD(&reg->iobase_window, 0x0001);
+ for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
+ rval == QLA_SUCCESS; cnt--) {
+ if (cnt) {
+ WRT_REG_DWORD(&reg->iobase_window, 0x0001);
+ udelay(10);
+ } else
+ rval = QLA_FUNCTION_TIMEOUT;
+ }
+ if (rval == QLA_SUCCESS)
+ goto next_test;
+
+ WRT_REG_DWORD(&reg->iobase_window, 0x0003);
+ for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
+ rval == QLA_SUCCESS; cnt--) {
+ if (cnt) {
+ WRT_REG_DWORD(&reg->iobase_window, 0x0003);
+ udelay(10);
+ } else
+ rval = QLA_FUNCTION_TIMEOUT;
+ }
+ if (rval != QLA_SUCCESS)
+ goto done;
+
+next_test:
+ if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
+ qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n");
+
+done:
+ WRT_REG_DWORD(&reg->iobase_window, 0x0000);
+ RD_REG_DWORD(&reg->iobase_window);
+}
+
/**
* qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
* @irq:
@@ -1526,6 +1573,9 @@ qla24xx_intr_handler(int irq, void *dev_id)
qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
"Dumping firmware!\n", hccr);
+
+ qla2xxx_check_risc_status(ha);
+
ha->isp_ops->fw_dump(ha, 1);
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
break;
@@ -1663,6 +1713,9 @@ qla24xx_msix_default(int irq, void *dev_id)
qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
"Dumping firmware!\n", hccr);
+
+ qla2xxx_check_risc_status(ha);
+
ha->isp_ops->fw_dump(ha, 1);
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
break;
OpenPOWER on IntegriCloud