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scsi: libfc: Return LS_RJT_BUSY for PRLI in status PLOGI 

Occasionally it might happen that we receive a PRLI while we're still
waiting for our PLOGI response. In that case we should return
'busy' LS status instead of 'plogi required' LS status.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2016-10-13 15:10:47 +02:00 committed by Martin K. Petersen
parent 386b97b43c
commit 8acf1b50cf
1 changed files with 17 additions and 0 deletions
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17
drivers/scsi/libfc/fc_rport.c
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@ -1705,6 +1705,15 @@ static void fc_rport_recv_els_req(struct fc_lport *lport, struct fc_frame *fp)
case RPORT_ST_READY:
case RPORT_ST_ADISC:
break;
case RPORT_ST_PLOGI:
if (fc_frame_payload_op(fp) == ELS_PRLI) {
FC_RPORT_DBG(rdata, "Reject ELS PRLI "
"while in state %s\n",
fc_rport_state(rdata));
mutex_unlock(&rdata->rp_mutex);
kref_put(&rdata->kref, lport->tt.rport_destroy);
goto busy;
}
default:
FC_RPORT_DBG(rdata,
"Reject ELS 0x%02x while in state %s\n",
@ -1752,6 +1761,14 @@ reject:
els_data.explan = ELS_EXPL_PLOGI_REQD;
lport->tt.seq_els_rsp_send(fp, ELS_LS_RJT, &els_data);
fc_frame_free(fp);
return;
busy:
els_data.reason = ELS_RJT_BUSY;
els_data.explan = ELS_EXPL_NONE;
lport->tt.seq_els_rsp_send(fp, ELS_LS_RJT, &els_data);
fc_frame_free(fp);
return;
}
/**