diff options
| author | Arun Easi <arun.easi@qlogic.com> | 2012-02-09 11:15:58 -0800 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-19 08:33:48 -0600 |
| commit | 0eba25df2190f191cb92879b225a0e484c3e5b51 (patch) | |
| tree | 72260202ee80e498b939e61dd7bdbb8c9f4b9f24 /drivers/scsi/qla2xxx/qla_mbx.c | |
| parent | 642ef983861a6a7ba41e9d7c0aa4da8f6d5af5bf (diff) | |
[SCSI] qla2xxx: Handle device mapping changes due to device logout.
A device logout sent in the delete path of a fcport would clear the
port handle binding inside the firmware. This could lead to queued
work items for the fcport, if any, getting incorrect results. This
patch fixes the issue by checking for device name changes after a
call to get port database.
Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_mbx.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_mbx.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index adc2b14b03f5..b4a23394a7bd 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -1289,6 +1289,7 @@ qla2x00_get_port_database(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t opt) goto gpd_error_out; if (IS_FWI2_CAPABLE(ha)) { + uint64_t zero = 0; pd24 = (struct port_database_24xx *) pd; /* Check for logged in state. */ @@ -1302,6 +1303,14 @@ qla2x00_get_port_database(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t opt) goto gpd_error_out; } + if (fcport->loop_id == FC_NO_LOOP_ID || + (memcmp(fcport->port_name, (uint8_t *)&zero, 8) && + memcmp(fcport->port_name, pd24->port_name, 8))) { + /* We lost the device mid way. */ + rval = QLA_NOT_LOGGED_IN; + goto gpd_error_out; + } + /* Names are little-endian. */ memcpy(fcport->node_name, pd24->node_name, WWN_SIZE); memcpy(fcport->port_name, pd24->port_name, WWN_SIZE); @@ -1318,6 +1327,8 @@ qla2x00_get_port_database(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t opt) else fcport->port_type = FCT_TARGET; } else { + uint64_t zero = 0; + /* Check for logged in state. */ if (pd->master_state != PD_STATE_PORT_LOGGED_IN && pd->slave_state != PD_STATE_PORT_LOGGED_IN) { @@ -1330,6 +1341,14 @@ qla2x00_get_port_database(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t opt) goto gpd_error_out; } + if (fcport->loop_id == FC_NO_LOOP_ID || + (memcmp(fcport->port_name, (uint8_t *)&zero, 8) && + memcmp(fcport->port_name, pd->port_name, 8))) { + /* We lost the device mid way. */ + rval = QLA_NOT_LOGGED_IN; + goto gpd_error_out; + } + /* Names are little-endian. */ memcpy(fcport->node_name, pd->node_name, WWN_SIZE); memcpy(fcport->port_name, pd->port_name, WWN_SIZE); |