[SCSI] qla2xxx: Add hardware trace-logging support.

Recent ISPs have a region within FLASH which acts as a repository
for the logging of serious hardware and software failures.
Currently, the region is large enough to support up to 255
entries.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 898847e4b363..b25c15a86c7f 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -587,6 +587,14 @@ qla2x00_mbx_reg_test(scsi_qla_host_t *ha)
                 if (mcp->mb[5] != 0xA5A5 || mcp->mb[6] != 0x5A5A ||
                     mcp->mb[7] != 0x2525)
                         rval = QLA_FUNCTION_FAILED;
+                if (rval == QLA_FUNCTION_FAILED) {
+                        struct device_reg_24xx __iomem *reg =
+                            &ha->iobase->isp24;
+
+                        qla2xxx_hw_event_log(ha, HW_EVENT_ISP_ERR, 0,
+                            LSW(RD_REG_DWORD(&reg->hccr)),
+                            LSW(RD_REG_DWORD(&reg->istatus)));
+                }
         }
 
         if (rval != QLA_SUCCESS) {