[SCSI] mptfusion - fc transport attributes

Signed-off-by: Michael Reed <mdr@sgi.com>
Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/message/fusion/mptbase.c

@@ -148,7 +148,6 @@ static int	WaitForDoorbellAck(MPT_ADAPTER *ioc, int howlong, int sleepFlag);
 static int	WaitForDoorbellInt(MPT_ADAPTER *ioc, int howlong, int sleepFlag);
 static int	WaitForDoorbellReply(MPT_ADAPTER *ioc, int howlong, int sleepFlag);
 static int	GetLanConfigPages(MPT_ADAPTER *ioc);
-static int	GetFcPortPage0(MPT_ADAPTER *ioc, int portnum);
 static int	GetIoUnitPage2(MPT_ADAPTER *ioc);
 int		mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode);
 static int	mpt_GetScsiPortSettings(MPT_ADAPTER *ioc, int portnum);
@@ -1244,6 +1243,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	ioc->pcidev = pdev;
 	ioc->diagPending = 0;
 	spin_lock_init(&ioc->diagLock);
+	spin_lock_init(&ioc->fc_rescan_work_lock);
+	spin_lock_init(&ioc->fc_rport_lock);
 	spin_lock_init(&ioc->initializing_hba_lock);
 
 	/* Initialize the event logging.
@@ -1267,6 +1268,10 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	 */
 	INIT_LIST_HEAD(&ioc->configQ);
 
+	/* Initialize the fc rport list head.
+	 */
+	INIT_LIST_HEAD(&ioc->fc_rports);
+
 	/* Find lookup slot. */
 	INIT_LIST_HEAD(&ioc->list);
 	ioc->id = mpt_ids++;
@@ -1879,7 +1884,7 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 			 *  (FCPortPage0_t stuff)
 			 */
 			for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
-				(void) GetFcPortPage0(ioc, ii);
+				(void) mptbase_GetFcPortPage0(ioc, ii);
 			}
 
 			if ((ioc->pfacts[0].ProtocolFlags & MPI_PORTFACTS_PROTOCOL_LAN) &&
@@ -4198,7 +4203,7 @@ GetLanConfigPages(MPT_ADAPTER *ioc)
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /*
- *	GetFcPortPage0 - Fetch FCPort config Page0.
+ *	mptbase_GetFcPortPage0 - Fetch FCPort config Page0.
  *	@ioc: Pointer to MPT_ADAPTER structure
  *	@portnum: IOC Port number
  *
@@ -4208,8 +4213,8 @@ GetLanConfigPages(MPT_ADAPTER *ioc)
  *		-EAGAIN if no msg frames currently available
  *		-EFAULT for non-successful reply or no reply (timeout)
  */
-static int
-GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
+int
+mptbase_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
 {
 	ConfigPageHeader_t	 hdr;
 	CONFIGPARMS		 cfg;
@@ -4219,6 +4224,8 @@ GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
 	int			 data_sz;
 	int			 copy_sz;
 	int			 rc;
+	int			 count = 400;
+
 
 	/* Get FCPort Page 0 header */
 	hdr.PageVersion = 0;
@@ -4242,6 +4249,8 @@ GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
 	rc = -ENOMEM;
 	ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
 	if (ppage0_alloc) {
+
+ try_again:
 		memset((u8 *)ppage0_alloc, 0, data_sz);
 		cfg.physAddr = page0_dma;
 		cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
@@ -4273,6 +4282,19 @@ GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
 			pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
 			pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
 
+			/*
+			 * if still doing discovery,
+			 * hang loose a while until finished
+			 */
+			if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) {
+				if (count-- > 0) {
+					msleep_interruptible(100);
+					goto try_again;
+				}
+				printk(MYIOC_s_INFO_FMT "Firmware discovery not"
+							" complete.\n",
+						ioc->name);
+			}
 		}
 
 		pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
@@ -6357,6 +6379,7 @@ EXPORT_SYMBOL(mpt_alloc_fw_memory);
 EXPORT_SYMBOL(mpt_free_fw_memory);
 EXPORT_SYMBOL(mptbase_sas_persist_operation);
 EXPORT_SYMBOL(mpt_alt_ioc_wait);
+EXPORT_SYMBOL(mptbase_GetFcPortPage0);
 
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

drivers/message/fusion/mptbase.h

@@ -76,8 +76,8 @@
 #define COPYRIGHT	"Copyright (c) 1999-2005 " MODULEAUTHOR
 #endif
 
-#define MPT_LINUX_VERSION_COMMON	"3.03.05"
-#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.03.05"
+#define MPT_LINUX_VERSION_COMMON	"3.03.06"
+#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.03.06"
 #define WHAT_MAGIC_STRING		"@" "(" "#" ")"
 
 #define show_mptmod_ver(s,ver)  \
@@ -499,6 +499,22 @@ typedef	struct _RaidCfgData {
 	int		 isRaid;		/* bit field, 1 if RAID */
 }RaidCfgData;
 
+#define MPT_RPORT_INFO_FLAGS_REGISTERED	0x01	/* rport registered */
+#define MPT_RPORT_INFO_FLAGS_MISSING	0x02	/* missing from DevPage0 scan */
+#define MPT_RPORT_INFO_FLAGS_MAPPED_VDEV 0x04	/* target mapped in vdev */
+
+/*
+ * data allocated for each fc rport device
+ */
+struct mptfc_rport_info
+{
+	struct list_head list;
+	struct fc_rport *rport;
+	VirtDevice	*vdev;
+	FCDevicePage0_t pg0;
+	u8		flags;
+};
+
 /*
  *  Adapter Structure - pci_dev specific. Maximum: MPT_MAX_ADAPTERS
  */
@@ -614,6 +630,13 @@ typedef struct _MPT_ADAPTER
 	struct list_head	 sas_topology;
 	struct mutex		 sas_topology_mutex;
 	MPT_SAS_MGMT		 sas_mgmt;
+
+	struct list_head	 fc_rports;
+	spinlock_t		 fc_rport_lock; /* list and ri flags */
+	spinlock_t		 fc_rescan_work_lock;
+	int			 fc_rescan_work_count;
+	struct work_struct	 fc_rescan_work;
+
 } MPT_ADAPTER;
 
 /*
@@ -1000,6 +1023,7 @@ extern void	 mpt_free_fw_memory(MPT_ADAPTER *ioc);
 extern int	 mpt_findImVolumes(MPT_ADAPTER *ioc);
 extern int	 mpt_read_ioc_pg_3(MPT_ADAPTER *ioc);
 extern int	 mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode);
+extern int	 mptbase_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum);
 extern int	 mpt_alt_ioc_wait(MPT_ADAPTER *ioc);
 
 /*

drivers/message/fusion/mptscsih.c

@@ -893,6 +893,7 @@ mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
  *		when a lun is disable by mid-layer.
  *		Do NOT access the referenced scsi_cmnd structure or
  *		members. Will cause either a paging or NULL ptr error.
+ *		(BUT, BUT, BUT, the code does reference it! - mdr)
  *      @hd: Pointer to a SCSI HOST structure
  *	@vdevice: per device private data
  *
@@ -2557,13 +2558,25 @@ mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
 			hd->cmdPtr = NULL;
 		}
 
-		/* 7. Set flag to force DV and re-read IOC Page 3
+		/* 7. SPI: Set flag to force DV and re-read IOC Page 3
 		 */
 		if (ioc->bus_type == SPI) {
 			ioc->spi_data.forceDv = MPT_SCSICFG_NEED_DV | MPT_SCSICFG_RELOAD_IOC_PG3;
 			ddvtprintk(("Set reload IOC Pg3 Flag\n"));
 		}
 
+		/* 7. FC: Rescan for blocked rports which might have returned.
+		 */
+		else if (ioc->bus_type == FC) {
+			int work_count;
+			unsigned long flags;
+
+			spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
+			work_count = ++ioc->fc_rescan_work_count;
+			spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
+			if (work_count == 1)
+				schedule_work(&ioc->fc_rescan_work);
+		}
 		dtmprintk((MYIOC_s_WARN_FMT "Post-Reset complete.\n", ioc->name));
 
 	}
@@ -2587,6 +2600,8 @@ mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
 {
 	MPT_SCSI_HOST *hd;
 	u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
+	int work_count;
+	unsigned long flags;
 
 	devtprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
 			ioc->name, event));
@@ -2608,11 +2623,18 @@ mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
 		/* FIXME! */
 		break;
 
+	case MPI_EVENT_RESCAN:				/* 06 */
+		spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
+		work_count = ++ioc->fc_rescan_work_count;
+		spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
+		if (work_count == 1)
+			schedule_work(&ioc->fc_rescan_work);
+		break;
+
 		/*
 		 *  CHECKME! Don't think we need to do
 		 *  anything for these, but...
 		 */
-	case MPI_EVENT_RESCAN:				/* 06 */
 	case MPI_EVENT_LINK_STATUS_CHANGE:		/* 07 */
 	case MPI_EVENT_LOOP_STATE_CHANGE:		/* 08 */
 		/*
@@ -3950,8 +3972,6 @@ mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
 		mptscsih_do_cmd(hd, &iocmd);
 }
 
-/* Search IOC page 3 to determine if this is hidden physical disk
- */
 /* Search IOC page 3 to determine if this is hidden physical disk
  */
 static int