[SCSI] qla2xxx: Add support for ISP82xx to capture dump (minidump) on failure.
Minidump allows us to catpure a snapshot of the firmware/hardware states at the
time of failure for further analysis.
[jejb: added missing #include <linux/vmalloc.h>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> ]
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index a31e05f..df0002f 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -23,11 +23,23 @@
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
+ int rval = 0;
if (ha->fw_dump_reading == 0)
return 0;
- return memory_read_from_buffer(buf, count, &off, ha->fw_dump,
+ if (IS_QLA82XX(ha)) {
+ if (off < ha->md_template_size) {
+ rval = memory_read_from_buffer(buf, count,
+ &off, ha->md_tmplt_hdr, ha->md_template_size);
+ return rval;
+ }
+ off -= ha->md_template_size;
+ rval = memory_read_from_buffer(buf, count,
+ &off, ha->md_dump, ha->md_dump_size);
+ return rval;
+ } else
+ return memory_read_from_buffer(buf, count, &off, ha->fw_dump,
ha->fw_dump_len);
}
@@ -41,12 +53,6 @@
struct qla_hw_data *ha = vha->hw;
int reading;
- if (IS_QLA82XX(ha)) {
- ql_dbg(ql_dbg_user, vha, 0x705b,
- "Firmware dump not supported for ISP82xx\n");
- return count;
- }
-
if (off != 0)
return (0);
@@ -59,6 +65,10 @@
ql_log(ql_log_info, vha, 0x705d,
"Firmware dump cleared on (%ld).\n", vha->host_no);
+ if (IS_QLA82XX(vha->hw)) {
+ qla82xx_md_free(vha);
+ qla82xx_md_prep(vha);
+ }
ha->fw_dump_reading = 0;
ha->fw_dumped = 0;
break;
@@ -75,7 +85,26 @@
qla2x00_alloc_fw_dump(vha);
break;
case 3:
- qla2x00_system_error(vha);
+ if (IS_QLA82XX(ha)) {
+ qla82xx_idc_lock(ha);
+ qla82xx_set_reset_owner(vha);
+ qla82xx_idc_unlock(ha);
+ } else
+ qla2x00_system_error(vha);
+ break;
+ case 4:
+ if (IS_QLA82XX(ha)) {
+ if (ha->md_tmplt_hdr)
+ ql_dbg(ql_dbg_user, vha, 0x705b,
+ "MiniDump supported with this firmware.\n");
+ else
+ ql_dbg(ql_dbg_user, vha, 0x709d,
+ "MiniDump not supported with this firmware.\n");
+ }
+ break;
+ case 5:
+ if (IS_QLA82XX(ha))
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
}
return (count);
@@ -546,6 +575,11 @@
scsi_block_requests(vha->host);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ if (IS_QLA82XX(ha)) {
+ qla82xx_idc_lock(ha);
+ qla82xx_set_reset_owner(vha);
+ qla82xx_idc_unlock(ha);
+ }
qla2xxx_wake_dpc(vha);
qla2x00_wait_for_chip_reset(vha);
scsi_unblock_requests(vha->host);