[SCSI] bnx2fc: Enable REC & CONF support for the session

Based on PRLI response, identify if the target is FCP-2 (seq level error
recovery) capable, and appropriately set the corresponding CONF, REC flags when
offloading the session.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
index ee1674b794b1..fa263b5902e1 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
@@ -279,6 +279,18 @@ int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
         ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
                              FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT);
 
+        /*
+         * Info from PRLI response, this info is used for sequence level error
+         * recovery support
+         */
+        if (tgt->dev_type == TYPE_TAPE) {
+                ofld_req3.flags |= 1 <<
+                                    FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ_SHIFT;
+                ofld_req3.flags |= (((rdata->flags & FC_RP_FLAGS_REC_SUPPORTED)
+                                    ? 1 : 0) <<
+                                    FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT);
+        }
+
         /* vlan flag */
         ofld_req3.flags |= (interface->vlan_enabled <<
                             FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT);