diff options
| author | Himanshu Madhani <himanshu.madhani@qlogic.com> | 2014-09-25 13:17:00 +0400 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-09-25 16:25:05 +0400 |
| commit | 2486c62765d73ad8f206ba43b8ede09e689bd803 (patch) | |
| tree | 727ad8284c4286ff1fe2329dd91053d25560c08f /drivers/scsi/qla2xxx | |
| parent | e05fe2924892a6c3c23dc818e94ce80dbceb86b1 (diff) | |
| download | linux-2486c62765d73ad8f206ba43b8ede09e689bd803.tar.xz | |
qla2xxx: Restore WWPN in case of Loop Dead.
For FA-WWPN capable device, ISP2031 and ISP27XX, when loop
dead is detected by a driver, restore WWPN from NVRAM.
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/qla2xxx')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_dbg.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_def.h | 3 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_init.c | 5 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 10 |
4 files changed, 18 insertions, 3 deletions
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index b21adb3d5e67..5f25cf0db568 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -11,8 +11,7 @@ * ---------------------------------------------------------------------- * | Level | Last Value Used | Holes | * ---------------------------------------------------------------------- - * | Module Init and Probe | 0x017d | 0x0141 | - * | | | 0x0144,0x0146 | + * | Module Init and Probe | 0x017d | 0x0144,0x0146 | * | | | 0x015b-0x0160 | * | | | 0x016e-0x0170 | * | Mailbox commands | 0x118d | 0x1115-0x1116 | diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index d529510bbc6c..a3bab3a3efdd 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2945,7 +2945,8 @@ struct qla_hw_data { uint32_t mr_reset_hdlr_active:1; uint32_t mr_intr_valid:1; - /* 34 bits */ + uint32_t fawwpn_enabled:1; + /* 35 bits */ } flags; /* This spinlock is used to protect "io transactions", you must diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 51cabb953552..23f12dddcb4a 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -2202,6 +2202,11 @@ qla2x00_init_rings(scsi_qla_host_t *vha) if (IS_DPORT_CAPABLE(ha)) mid_init_cb->init_cb.firmware_options_1 |= cpu_to_le16(BIT_7); + /* Enable FA-WWPN */ + ha->flags.fawwpn_enabled = + (mid_init_cb->init_cb.firmware_options_1 & BIT_6) ? 1 : 0; + ql_dbg(ql_dbg_init, vha, 0x0141, "FA-WWPN Support: %s.\n", + (ha->flags.fawwpn_enabled) ? "enabled" : "disabled"); } rval = qla2x00_init_firmware(vha, ha->init_cb_size); diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index f15f87e1abd8..696e4a2d3fa7 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -752,6 +752,16 @@ skip_rio: if (atomic_read(&vha->loop_state) != LOOP_DOWN) { atomic_set(&vha->loop_state, LOOP_DOWN); atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); + /* + * In case of loop down, restore WWPN from + * NVRAM in case of FA-WWPN capable ISP + */ + if (ha->flags.fawwpn_enabled) { + void *wwpn = ha->init_cb->port_name; + + memcpy(vha->port_name, wwpn, WWN_SIZE); + } + vha->device_flags |= DFLG_NO_CABLE; qla2x00_mark_all_devices_lost(vha, 1); } |