Commit 618461c0 authored by Bhanu Prakash Gollapudi's avatar Bhanu Prakash Gollapudi Committed by James Bottomley
Browse files

[SCSI] libfc: Honor LS_ACC response codes for PRLI



As per FC-LS Rev 1.62 table 46, response codes are handled as follows:

1. If the Req executed is true, PRLI is accepted.
2. If Req executed is not set,  if resp code is 5,
   PRLI is not retried and port is logged out.
3. If resp code is anything apart from 1 or 5, PRLI is retired
   upto max retry count.
Signed-off-by: default avatarBhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: default avatarRobert Love <robert.w.love@intel.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 292e40b9
......@@ -698,6 +698,7 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp,
u32 roles = FC_RPORT_ROLE_UNKNOWN;
u32 fcp_parm = 0;
u8 op;
u8 resp_code = 0;
mutex_lock(&rdata->rp_mutex);
......@@ -722,11 +723,25 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp,
op = fc_frame_payload_op(fp);
if (op == ELS_LS_ACC) {
pp = fc_frame_payload_get(fp, sizeof(*pp));
if (pp && pp->prli.prli_spp_len >= sizeof(pp->spp)) {
fcp_parm = ntohl(pp->spp.spp_params);
if (fcp_parm & FCP_SPPF_RETRY)
rdata->flags |= FC_RP_FLAGS_RETRY;
if (!pp)
goto out;
resp_code = (pp->spp.spp_flags & FC_SPP_RESP_MASK);
FC_RPORT_DBG(rdata, "PRLI spp_flags = 0x%x\n",
pp->spp.spp_flags);
if (resp_code != FC_SPP_RESP_ACK) {
if (resp_code == FC_SPP_RESP_CONF)
fc_rport_error(rdata, fp);
else
fc_rport_error_retry(rdata, fp);
goto out;
}
if (pp->prli.prli_spp_len < sizeof(pp->spp))
goto out;
fcp_parm = ntohl(pp->spp.spp_params);
if (fcp_parm & FCP_SPPF_RETRY)
rdata->flags |= FC_RP_FLAGS_RETRY;
rdata->supported_classes = FC_COS_CLASS3;
if (fcp_parm & FCP_SPPF_INIT_FCN)
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment