diff options
| -rw-r--r-- | drivers/scsi/libfc/fc_rport.c | 56 |
1 files changed, 38 insertions, 18 deletions
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c index 426c39989952..2b8214f335db 100644 --- a/drivers/scsi/libfc/fc_rport.c +++ b/drivers/scsi/libfc/fc_rport.c @@ -1126,7 +1126,7 @@ 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; + enum fc_els_spp_resp resp_code; FC_RPORT_DBG(rdata, "Received a PRLI %s\n", fc_els_resp_type(fp)); @@ -1158,8 +1158,8 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp, 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); + FC_RPORT_DBG(rdata, "PRLI spp_flags = 0x%x spp_type 0x%x\n", + pp->spp.spp_flags, pp->spp.spp_type); rdata->spp_type = pp->spp.spp_type; if (resp_code != FC_SPP_RESP_ACK) { if (resp_code == FC_SPP_RESP_CONF) @@ -1177,13 +1177,26 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp, if (fcp_parm & FCP_SPPF_CONF_COMPL) rdata->flags |= FC_RP_FLAGS_CONF_REQ; - prov = fc_passive_prov[FC_TYPE_FCP]; + /* + * Call prli provider if we should act as a target + */ + prov = fc_passive_prov[rdata->spp_type]; if (prov) { memset(&temp_spp, 0, sizeof(temp_spp)); prov->prli(rdata, pp->prli.prli_spp_len, &pp->spp, &temp_spp); } - + /* + * Check if the image pair could be established + */ + if (rdata->spp_type != FC_TYPE_FCP || + resp_code != FC_SPP_RESP_ACK || + !(pp->spp.spp_flags & FC_SPP_EST_IMG_PAIR)) { + /* + * Nope; we can't use this port as a target. + */ + fcp_parm &= ~FCP_SPPF_TARG_FCN; + } rdata->supported_classes = FC_COS_CLASS3; if (fcp_parm & FCP_SPPF_INIT_FCN) roles |= FC_RPORT_ROLE_FCP_INITIATOR; @@ -1236,6 +1249,15 @@ static void fc_rport_enter_prli(struct fc_rport_priv *rdata) return; } + /* + * And if the local port does not support the initiator function + * there's no need to send a PRLI, either. + */ + if (!(lport->service_params & FCP_SPPF_INIT_FCN)) { + fc_rport_enter_ready(rdata); + return; + } + FC_RPORT_DBG(rdata, "Port entered PRLI state from %s state\n", fc_rport_state(rdata)); @@ -1926,7 +1948,6 @@ static void fc_rport_recv_prli_req(struct fc_rport_priv *rdata, unsigned int len; unsigned int plen; enum fc_els_spp_resp resp; - enum fc_els_spp_resp passive; struct fc_seq_els_data rjt_data; struct fc4_prov *prov; @@ -1976,15 +1997,21 @@ static void fc_rport_recv_prli_req(struct fc_rport_priv *rdata, resp = 0; if (rspp->spp_type < FC_FC4_PROV_SIZE) { + enum fc_els_spp_resp active = 0, passive = 0; + prov = fc_active_prov[rspp->spp_type]; if (prov) - resp = prov->prli(rdata, plen, rspp, spp); + active = prov->prli(rdata, plen, rspp, spp); prov = fc_passive_prov[rspp->spp_type]; - if (prov) { + if (prov) passive = prov->prli(rdata, plen, rspp, spp); - if (!resp || passive == FC_SPP_RESP_ACK) - resp = passive; - } + if (!active || passive == FC_SPP_RESP_ACK) + resp = passive; + else + resp = active; + FC_RPORT_DBG(rdata, "PRLI rspp type %x " + "active %x passive %x\n", + rspp->spp_type, active, passive); } if (!resp) { if (spp->spp_flags & FC_SPP_EST_IMG_PAIR) @@ -2005,13 +2032,6 @@ static void fc_rport_recv_prli_req(struct fc_rport_priv *rdata, fc_fill_reply_hdr(fp, rx_fp, FC_RCTL_ELS_REP, 0); lport->tt.frame_send(lport, fp); - switch (rdata->rp_state) { - case RPORT_ST_PRLI: - fc_rport_enter_ready(rdata); - break; - default: - break; - } goto drop; reject_len: |