[SCSI] be2iscsi: Add support for configuring the VLAN on the adapter.

Add support for configuring the VLAN parameters on the adapter
using the iscsiadm interface.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index d0058e38bc6..07d2cb126d9 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -934,3 +934,45 @@ int beiscsi_cmd_reset_function(struct beiscsi_hba  *phba)
 	spin_unlock(&ctrl->mbox_lock);
 	return status;
 }
+
+/**
+ * be_cmd_set_vlan()- Configure VLAN paramters on the adapter
+ * @phba: device priv structure instance
+ * @vlan_tag: TAG to be set
+ *
+ * Set the VLAN_TAG for the adapter or Disable VLAN on adapter
+ *
+ * returns
+ *	TAG for the MBX Cmd
+ * **/
+int be_cmd_set_vlan(struct beiscsi_hba *phba,
+		     uint16_t vlan_tag)
+{
+	unsigned int tag = 0;
+	struct be_mcc_wrb *wrb;
+	struct be_cmd_set_vlan_req *req;
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+
+	spin_lock(&ctrl->mbox_lock);
+	tag = alloc_mcc_tag(phba);
+	if (!tag) {
+		spin_unlock(&ctrl->mbox_lock);
+		return tag;
+	}
+
+	wrb = wrb_from_mccq(phba);
+	req = embedded_payload(wrb);
+	wrb->tag0 |= tag;
+	be_wrb_hdr_prepare(wrb, sizeof(*wrb), true, 0);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+			   OPCODE_COMMON_ISCSI_NTWK_SET_VLAN,
+			   sizeof(*req));
+
+	req->interface_hndl = phba->interface_handle;
+	req->vlan_priority = vlan_tag;
+
+	be_mcc_notify(phba);
+	spin_unlock(&ctrl->mbox_lock);
+
+	return tag;
+}