sugar/linux
1
0
Fork 0
Code Activity

scsi: qla2xxx: Fix N2N link re-connect

Browse Source 
In case of N2N connect, sg_reset for bus/device/host was causing driver and
firmware state to go out of sync.  This patch fixes this link instablity
when reconnect is attempted after link flap.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Quinn Tran
2018-08-02 13:16:44 -07:00
committed by Martin K. Petersen
parent 4ae5716b41
commit 48acad0990
7 changed files with 182 additions and 109 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/scsi/qla2xxx/qla_mbx.c
View File

@@ -2177,7 +2177,10 @@ qla2x00_lip_reset(scsi_qla_host_t *vha)
mcp->out_mb = MBX_2|MBX_1|MBX_0;
} else if (IS_FWI2_CAPABLE(vha->hw)) {
mcp->mb[0] = MBC_LIP_FULL_LOGIN;
mcp->mb[1] = BIT_6;
if (N2N_TOPO(vha->hw))
mcp->mb[1] = BIT_4; /* re-init */
else
mcp->mb[1] = BIT_6; /* LIP */
mcp->mb[2] = 0;
mcp->mb[3] = vha->hw->loop_reset_delay;
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
@@ -3911,28 +3914,6 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
if (fcport) {
fcport->plogi_nack_done_deadline = jiffies + HZ;
fcport->scan_state = QLA_FCPORT_FOUND;
switch (fcport->disc_state) {
case DSC_DELETED:
ql_dbg(ql_dbg_disc, vha, 0x210d,
"%s %d %8phC login\n",
__func__, __LINE__, fcport->port_name);
qla24xx_fcport_handle_login(vha, fcport);
break;
case DSC_DELETE_PEND:
break;
default:
qlt_schedule_sess_for_deletion(fcport);
break;
}
} else {
id.b.al_pa = rptid_entry->u.f2.remote_nport_id[0];
id.b.area = rptid_entry->u.f2.remote_nport_id[1];
id.b.domain = rptid_entry->u.f2.remote_nport_id[2];
qla24xx_post_newsess_work(vha, &id,
rptid_entry->u.f2.port_name,
rptid_entry->u.f2.node_name,
NULL,
FC4_TYPE_UNKNOWN);
}
}
}