[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, 11 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index e773697cd8d5..e9a7c2d13855 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -500,6 +500,7 @@ qla2x00_reset_chip(scsi_qla_host_t *ha)
 static inline void
 qla24xx_reset_risc(scsi_qla_host_t *ha)
 {
+        int hw_evt = 0;
         unsigned long flags = 0;
         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
         uint32_t cnt, d2;
@@ -528,6 +529,8 @@ qla24xx_reset_risc(scsi_qla_host_t *ha)
                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
                 barrier();
         }
+        if (cnt == 0)
+                hw_evt = 1;
 
         /* Wait for soft-reset to complete. */
         d2 = RD_REG_DWORD(&reg->ctrl_status);
@@ -536,6 +539,10 @@ qla24xx_reset_risc(scsi_qla_host_t *ha)
                 d2 = RD_REG_DWORD(&reg->ctrl_status);
                 barrier();
         }
+        if (cnt == 0 || hw_evt)
+                qla2xxx_hw_event_log(ha, HW_EVENT_RESET_ERR,
+                    RD_REG_WORD(&reg->mailbox1), RD_REG_WORD(&reg->mailbox2),
+                    RD_REG_WORD(&reg->mailbox3));
 
         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
         RD_REG_DWORD(&reg->hccr);
@@ -1555,6 +1562,10 @@ qla2x00_nvram_config(scsi_qla_host_t *ha)
                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
                     "invalid -- WWPN) defaults.\n");
 
+                if (chksum)
+                        qla2xxx_hw_event_log(ha, HW_EVENT_NVRAM_CHKSUM_ERR, 0,
+                            MSW(chksum), LSW(chksum));
+
                 /*
                  * Set default initialization control block.
                  */