1 files changed, 58 insertions, 4 deletions

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index ed1e728763a2..93d1fbe4ee5d 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -2767,6 +2767,40 @@ static void ibmvfc_retry_tgt_init(struct ibmvfc_target *tgt,
                 ibmvfc_init_tgt(tgt, job_step);
 }
 
+/* Defined in FC-LS */
+static const struct {
+        int code;
+        int retry;
+        int logged_in;
+} prli_rsp [] = {
+        { 0, 1, 0 },
+        { 1, 0, 1 },
+        { 2, 1, 0 },
+        { 3, 1, 0 },
+        { 4, 0, 0 },
+        { 5, 0, 0 },
+        { 6, 0, 1 },
+        { 7, 0, 0 },
+        { 8, 1, 0 },
+};
+
+/**
+ * ibmvfc_get_prli_rsp - Find PRLI response index
+ * @flags:      PRLI response flags
+ *
+ **/
+static int ibmvfc_get_prli_rsp(u16 flags)
+{
+        int i;
+        int code = (flags & 0x0f00) >> 8;
+
+        for (i = 0; i < ARRAY_SIZE(prli_rsp); i++)
+                if (prli_rsp[i].code == code)
+                        return i;
+
+        return 0;
+}
+
 /**
  * ibmvfc_tgt_prli_done - Completion handler for Process Login
  * @evt:        ibmvfc event struct
@@ -2777,15 +2811,36 @@ static void ibmvfc_tgt_prli_done(struct ibmvfc_event *evt)
         struct ibmvfc_target *tgt = evt->tgt;
         struct ibmvfc_host *vhost = evt->vhost;
         struct ibmvfc_process_login *rsp = &evt->xfer_iu->prli;
+        struct ibmvfc_prli_svc_parms *parms = &rsp->parms;
         u32 status = rsp->common.status;
+        int index;
 
         vhost->discovery_threads--;
         ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
         switch (status) {
         case IBMVFC_MAD_SUCCESS:
-                tgt_dbg(tgt, "Process Login succeeded\n");
-                tgt->need_login = 0;
-                ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_ADD_RPORT);
+                tgt_dbg(tgt, "Process Login succeeded: %X %02X %04X\n",
+                        parms->type, parms->flags, parms->service_parms);
+
+                if (parms->type == IBMVFC_SCSI_FCP_TYPE) {
+                        index = ibmvfc_get_prli_rsp(parms->flags);
+                        if (prli_rsp[index].logged_in) {
+                                if (parms->flags & IBMVFC_PRLI_EST_IMG_PAIR) {
+                                        tgt->need_login = 0;
+                                        tgt->ids.roles = 0;
+                                        if (parms->service_parms & IBMVFC_PRLI_TARGET_FUNC)
+                                                tgt->ids.roles |= FC_PORT_ROLE_FCP_TARGET;
+                                        if (parms->service_parms & IBMVFC_PRLI_INITIATOR_FUNC)
+                                                tgt->ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
+                                        ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_ADD_RPORT);
+                                } else
+                                        ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
+                        } else if (prli_rsp[index].retry)
+                                ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_prli);
+                        else
+                                ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
+                } else
+                        ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
                 break;
         case IBMVFC_MAD_DRIVER_FAILED:
                 break;
@@ -2874,7 +2929,6 @@ static void ibmvfc_tgt_plogi_done(struct ibmvfc_event *evt)
                 tgt->ids.node_name = wwn_to_u64(rsp->service_parms.node_name);
                 tgt->ids.port_name = wwn_to_u64(rsp->service_parms.port_name);
                 tgt->ids.port_id = tgt->scsi_id;
-                tgt->ids.roles = FC_PORT_ROLE_FCP_TARGET;
                 memcpy(&tgt->service_parms, &rsp->service_parms,
                        sizeof(tgt->service_parms));
                 memcpy(&tgt->service_parms_change, &rsp->service_parms_change,