[SCSI] bfa: Add support to configure trunking on Brocade adapter ports.

- Added logic to enable / disable trunking on Brocade adapter ports.
- Added logic to query trunking info.

Signed-off-by: Krishna Gudipati <kgudipat@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 95694ce..2268045 100644
--- a/drivers/scsi/bfa/bfad_bsg.h
+++ b/drivers/scsi/bfa/bfad_bsg.h
@@ -126,6 +126,9 @@
 	IOCMD_PREBOOT_QUERY,
 	IOCMD_ETHBOOT_CFG,
 	IOCMD_ETHBOOT_QUERY,
+	IOCMD_TRUNK_ENABLE,
+	IOCMD_TRUNK_DISABLE,
+	IOCMD_TRUNK_GET_ATTR,
 };
 
 struct bfa_bsg_gen_s {
@@ -656,6 +659,13 @@
 	struct  bfa_ethboot_cfg_s  cfg;
 };
 
+struct bfa_bsg_trunk_attr_s {
+	bfa_status_t	status;
+	u16		bfad_num;
+	u16		rsvd;
+	struct bfa_trunk_attr_s attr;
+};
+
 struct bfa_bsg_fcpt_s {
 	bfa_status_t    status;
 	u16		vf_id;