[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3

NPIV support is added to the driver.  It utilizes the interfaces of
the fc transport for the creation and deletion of vports. Within the
driver, a new Scsi_Host is created for each NPIV instance, and is
paired with a new instance of a FC port.  This allows N FC Port
elements to share a single Adapter.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/lpfc/lpfc_disc.h

@@ -36,13 +36,14 @@ enum lpfc_work_type {
 	LPFC_EVT_WARM_START,
 	LPFC_EVT_KILL,
 	LPFC_EVT_ELS_RETRY,
+	LPFC_EVT_DEV_LOSS,
 };
 
 /* structure used to queue event to the discovery tasklet */
 struct lpfc_work_evt {
 	struct list_head      evt_listp;
-	void                * evt_arg1;
-	void                * evt_arg2;
+	void                 *evt_arg1;
+	void                 *evt_arg2;
 	enum lpfc_work_type   evt;
 };
 
@@ -73,10 +74,12 @@ struct lpfc_nodelist {
 #define NLP_FCP_2_DEVICE   0x10			/* FCP-2 device */
 
 	struct timer_list   nlp_delayfunc;	/* Used for delayed ELS cmds */
+	struct timer_list   nlp_initiator_tmr;	/* Used with dev_loss */
 	struct fc_rport *rport;			/* Corresponding FC transport
 						   port structure */
 	struct lpfc_vport *vport;
 	struct lpfc_work_evt els_retry_evt;
+	struct lpfc_work_evt dev_loss_evt;
 	unsigned long last_ramp_up_time;        /* jiffy of last ramp up */
 	unsigned long last_q_full_time;		/* jiffy of last queue full */
 	struct kref     kref;
@@ -99,6 +102,7 @@ struct lpfc_nodelist {
 #define NLP_NPR_ADISC      0x2000000	/* Issue ADISC when dq'ed from
 					   NPR list */
 #define NLP_NODEV_REMOVE   0x8000000	/* Defer removal till discovery ends */
+#define NLP_TARGET_REMOVE  0x10000000   /* Target remove in process */
 
 /* There are 4 different double linked lists nodelist entries can reside on.
  * The Port Login (PLOGI) list and Address Discovery (ADISC) list are used