[SCSI] bfa: Support for FC BB credit recovery

This patch includes changes to  1) Enable/disable fc credit recovery on
Brocade FC adapter port operating at max supported speed. 2) Get credit
recovery status and stats related to credit loss and recovered credits

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/bfa/bfad_bsg.h b/drivers/scsi/bfa/bfad_bsg.h
index 15e1fc8..612463b 100644
--- a/drivers/scsi/bfa/bfad_bsg.h
+++ b/drivers/scsi/bfa/bfad_bsg.h
@@ -46,8 +46,9 @@
 	IOCMD_PORT_CFG_ALPA,
 	IOCMD_PORT_CFG_MAXFRSZ,
 	IOCMD_PORT_CLR_ALPA,
-	IOCMD_PORT_BBSC_ENABLE,
-	IOCMD_PORT_BBSC_DISABLE,
+	IOCMD_PORT_BBCR_ENABLE,
+	IOCMD_PORT_BBCR_DISABLE,
+	IOCMD_PORT_BBCR_GET_ATTR,
 	IOCMD_LPORT_GET_ATTR,
 	IOCMD_LPORT_GET_RPORTS,
 	IOCMD_LPORT_GET_STATS,
@@ -495,6 +496,20 @@
 	struct bfa_port_cfg_mode_s cfg;
 };
 
+struct bfa_bsg_bbcr_enable_s {
+	bfa_status_t    status;
+	u16		bfad_num;
+	u8		bb_scn;
+	u8		rsvd;
+};
+
+struct bfa_bsg_bbcr_attr_s {
+	bfa_status_t    status;
+	u16		bfad_num;
+	u16		rsvd;
+	struct bfa_bbcr_attr_s attr;
+};
+
 struct bfa_bsg_faa_attr_s {
 	bfa_status_t		status;
 	u16			bfad_num;