- fusion - Greater than 255 target and lun support

diff -uarpN b/drivers/message/fusion/mptbase.c a/drivers/message/fusion/mptbase.c
@@ -82,6 +82,10 @@ static int mpt_msi_enable;
 module_param(mpt_msi_enable, int, 0);
 MODULE_PARM_DESC(mpt_msi_enable, " MSI Support Enable (default=0)");
 
+static int mpt_channel_mapping;
+module_param(mpt_channel_mapping, int, 0);
+MODULE_PARM_DESC(mpt_channel_mapping, " Mapping id's to channels (default=0)");
+
 #ifdef MFCNT
 static int mfcounter = 0;
 #define PRINT_MF_COUNT 20000

@@ -2505,6 +2509,7 @@ GetPortFacts(MPT_ADAPTER *ioc, int portn
 	int			 ii;
 	int			 req_sz;
 	int			 reply_sz;
+	int			 max_id;
 
 	/* IOC *must* NOT be in RESET state! */
 	if (ioc->last_state == MPI_IOC_STATE_RESET) {

@@ -2552,6 +2557,21 @@ GetPortFacts(MPT_ADAPTER *ioc, int portn
 	pfacts->MaxPersistentIDs = le16_to_cpu(pfacts->MaxPersistentIDs);
 	pfacts->MaxLanBuckets = le16_to_cpu(pfacts->MaxLanBuckets);
 
+	max_id = (ioc->bus_type == SAS) ? pfacts->PortSCSIID :
+	    pfacts->MaxDevices;
+	ioc->devices_per_bus = (max_id > 255) ? 256 : max_id;
+	ioc->number_of_buses = (ioc->devices_per_bus < 256) ? 1 : max_id/256;
+
+	/*
+	 * Place all the devices on channels
+	 *
+	 * (for debuging)
+	 */
+	if (mpt_channel_mapping) {
+		ioc->devices_per_bus = 1;
+		ioc->number_of_buses = (max_id > 255) ? 255 : max_id;
+	}
+
 	return 0;
 }
 

@@ -2592,13 +2612,8 @@ SendIocInit(MPT_ADAPTER *ioc, int sleepF
 	ddlprintk((MYIOC_s_INFO_FMT "upload_fw %d facts.Flags=%x\n",
 		   ioc->name, ioc->upload_fw, ioc->facts.Flags));
 
-	if(ioc->bus_type == SAS)
-		ioc_init.MaxDevices = ioc->facts.MaxDevices;
-	else if(ioc->bus_type == FC)
-		ioc_init.MaxDevices = MPT_MAX_FC_DEVICES;
-	else
-		ioc_init.MaxDevices = MPT_MAX_SCSI_DEVICES;
-	ioc_init.MaxBuses = MPT_MAX_BUS;
+	ioc_init.MaxDevices = (U8)ioc->devices_per_bus;
+	ioc_init.MaxBuses = (U8)ioc->number_of_buses;
 	dinitprintk((MYIOC_s_INFO_FMT "facts.MsgVersion=%x\n",
 		   ioc->name, ioc->facts.MsgVersion));
 	if (ioc->facts.MsgVersion >= MPI_VERSION_01_05) {

diff -uarpN b/drivers/message/fusion/mptbase.h a/drivers/message/fusion/mptbase.h
@@ -334,8 +334,8 @@ typedef struct _VirtTarget {
 	struct scsi_target	*starget;
 	u8			 tflags;
 	u8			 ioc_id;
-	u8			 target_id;
-	u8			 bus_id;
+	u8			 id;
+	u8			 channel;
 	u8			 minSyncFactor;	/* 0xFF is async */
 	u8			 maxOffset;	/* 0 if async */
 	u8			 maxWidth;	/* 0 if narrow, 1 if wide */

@@ -344,13 +344,12 @@ typedef struct _VirtTarget {
 	u8			 type;		/* byte 0 of Inquiry data */
 	u8			 deleted;	/* target in process of being removed */
 	u32			 num_luns;
-	u32			 luns[8];		/* Max LUNs is 256 */
 } VirtTarget;
 
 typedef struct _VirtDevice {
 	VirtTarget		*vtarget;
 	u8			 configured_lun;
-	u32			 lun;
+	int			 lun;
 } VirtDevice;
 
 /*

@@ -412,7 +411,7 @@ typedef struct _MPT_IOCTL {
 	u8			 rsvd;
 	u8			 status;	/* current command status */
 	u8			 reset;		/* 1 if bus reset allowed */
-	u8			 target;	/* target for reset */
+	u8			 id;		/* target for reset */
 	struct mutex		 ioctl_mutex;
 } MPT_IOCTL;
 

@@ -528,6 +527,8 @@ typedef struct _MPT_ADAPTER
 	u32			 mem_phys;	/* == f4020000 (mmap) */
 	u32			 pio_mem_phys;	/* Programmed IO (downloadboot) */
 	int			 mem_size;	/* mmap memory size */
+	int			 number_of_buses;
+	int			 devices_per_bus;
 	int			 alloc_total;
 	u32			 last_state;
 	int			 active;

@@ -957,7 +958,6 @@ typedef struct _MPT_SCSI_HOST {
 	int			  port;
 	u32			  pad0;
 	struct scsi_cmnd	**ScsiLookup;
-	VirtTarget		**Targets;
 	MPT_LOCAL_REPLY		 *pLocal;		/* used for internal commands */
 	struct timer_list	  timer;
 		/* Pool of memory for holding SCpnts before doing

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