[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, 10 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 35c730a3f0da..13ffedaf8cba 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2118,6 +2118,7 @@ struct qla_msix_entry {
 /* Work events.  */
 enum qla_work_type {
         QLA_EVT_AEN,
+        QLA_EVT_HWE_LOG,
 };
 
 
@@ -2132,6 +2133,10 @@ struct qla_work_evt {
                         enum fc_host_event_code code;
                         u32 data;
                 } aen;
+                struct {
+                        uint16_t code;
+                        uint16_t d1, d2, d3;
+                } hwe;
         } u;
 };
 
@@ -2173,6 +2178,7 @@ typedef struct scsi_qla_host {
                 uint32_t        vsan_enabled            :1;
                 uint32_t        npiv_supported          :1;
                 uint32_t        fce_enabled             :1;
+                uint32_t        hw_event_marker_found   :1;
         } flags;
 
         atomic_t        loop_state;
@@ -2478,6 +2484,10 @@ typedef struct scsi_qla_host {
         uint64_t        fce_wr, fce_rd;
         struct mutex    fce_mutex;
 
+        uint32_t        hw_event_start;
+        uint32_t        hw_event_ptr;
+        uint32_t        hw_event_pause_errors;
+
         uint8_t         host_str[16];
         uint32_t        pci_attr;
         uint16_t        chip_revision;