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authorVikas Chaudhary <vikas.chaudhary@qlogic.com>2011-05-17 23:17:05 -0700
committerJames Bottomley <jbottomley@parallels.com>2011-05-24 12:39:20 -0400
commit68d92ebf598e205619dea753a9a990aef4ab8f7a (patch)
tree944675e3ca25ff2297f01a89636418b25d36f422 /drivers/scsi/qla4xxx/ql4_os.c
parentcb74428ee3811d7749d07e00161336ba9f98b394 (diff)
[SCSI] qla4xxx: Dump HW/FW reg to figure out what caused FW to be hung for ISP82XX
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <jbottomley@parallels.com>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_os.c')
-rw-r--r--drivers/scsi/qla4xxx/ql4_os.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index c22f2a764d9..b657ecec46f 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -679,7 +679,27 @@ static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
if (ha->seconds_since_last_heartbeat == 2) {
ha->seconds_since_last_heartbeat = 0;
halt_status = qla4_8xxx_rd_32(ha,
- QLA82XX_PEG_HALT_STATUS1);
+ QLA82XX_PEG_HALT_STATUS1);
+
+ ql4_printk(KERN_INFO, ha,
+ "scsi(%ld): %s, Dumping hw/fw registers:\n "
+ " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:"
+ " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:"
+ " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:"
+ " 0x%x,\n PEG_NET_4_PC: 0x%x\n",
+ ha->host_no, __func__, halt_status,
+ qla4_8xxx_rd_32(ha,
+ QLA82XX_PEG_HALT_STATUS2),
+ qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 +
+ 0x3c),
+ qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 +
+ 0x3c),
+ qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 +
+ 0x3c),
+ qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 +
+ 0x3c),
+ qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 +
+ 0x3c));
/* Since we cannot change dev_state in interrupt
* context, set appropriate DPC flag then wakeup