[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, 46 insertions, 0 deletions

diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 3dca332acce2..aab5dd359e2c 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -1090,3 +1090,49 @@ int be_mgmt_get_boot_shandle(struct beiscsi_hba *phba,
                     "BG_%d : Login to Boot Target Failed\n");
         return -ENXIO;
 }
+
+/**
+ * mgmt_set_vlan()- Issue and wait for CMD completion
+ * @phba: device private structure instance
+ * @vlan_tag: VLAN tag
+ *
+ * Issue the MBX Cmd and wait for the completion of the
+ * command.
+ *
+ * returns
+ *      Success: 0
+ *      Failure: Non-Xero Value
+ **/
+int mgmt_set_vlan(struct beiscsi_hba *phba,
+                   uint16_t vlan_tag)
+{
+        unsigned int tag, wrb_num;
+        unsigned short status, extd_status;
+
+        tag = be_cmd_set_vlan(phba, vlan_tag);
+        if (!tag) {
+                beiscsi_log(phba, KERN_ERR,
+                            (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
+                            "BG_%d : VLAN Setting Failed\n");
+                return -EBUSY;
+        } else
+                wait_event_interruptible(phba->ctrl.mcc_wait[tag],
+                                         phba->ctrl.mcc_numtag[tag]);
+
+        wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16;
+        extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
+        status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
+
+        if (status || extd_status) {
+                beiscsi_log(phba, KERN_ERR,
+                            (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
+                            "BS_%d : status : %d extd_status : %d\n",
+                            status, extd_status);
+
+                free_mcc_tag(&phba->ctrl, tag);
+                return -EAGAIN;
+        }
+
+        free_mcc_tag(&phba->ctrl, tag);
+        return 0;
+}