[SCSI] mptfusion - mapping fixs required support for transport layers.

This utilizes the hostdata area that is hung off of scsi_target and
scsi_device for saving unique firmware mapping. This will be required
for supporting new Fibre and SPI transport support.

This also fixs problems in error handling error code for SAS
controllers, in which the incorrect mapping was passed to the
firmware.
Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/message/fusion/mptbase.h

@@ -321,7 +321,7 @@ typedef struct _SYSIF_REGS
  *	Dynamic Multi-Pathing specific stuff...
  */
 
-/* VirtDevice negoFlags field */
+/* VirtTarget negoFlags field */
 #define MPT_TARGET_NO_NEGO_WIDE		0x01
 #define MPT_TARGET_NO_NEGO_SYNC		0x02
 #define MPT_TARGET_NO_NEGO_QAS		0x04
@@ -330,8 +330,7 @@ typedef struct _SYSIF_REGS
 /*
  *	VirtDevice - FC LUN device or SCSI target device
  */
-typedef struct _VirtDevice {
-	struct scsi_device	*device;
+typedef struct _VirtTarget {
 	u8			 tflags;
 	u8			 ioc_id;
 	u8			 target_id;
@@ -342,21 +341,18 @@ typedef struct _VirtDevice {
 	u8			 negoFlags;	/* bit field, see above */
 	u8			 raidVolume;	/* set, if RAID Volume */
 	u8			 type;		/* byte 0 of Inquiry data */
-	u8			 cflags;	/* controller flags */
-	u8			 rsvd1raid;
-	u16			 fc_phys_lun;
-	u16			 fc_xlat_lun;
 	u32			 num_luns;
 	u32			 luns[8];		/* Max LUNs is 256 */
-	u8			 pad[4];
 	u8			 inq_data[8];
-		/* IEEE Registered Extended Identifier
-		   obtained via INQUIRY VPD page 0x83 */
-		/* NOTE: Do not separate uniq_prepad and uniq_data
-		   as they are treateed as a single entity in the code */
-	u8			 uniq_prepad[8];
-	u8			 uniq_data[20];
-	u8			 pad2[4];
+} VirtTarget;
+
+typedef struct _VirtDevice {
+	VirtTarget	 	*vtarget;
+	u8			 ioc_id;
+	u8			 bus_id;
+	u8			 target_id;
+	u8			 configured_lun;
+	u32			 lun;
 } VirtDevice;
 
 /*
@@ -912,7 +908,7 @@ typedef struct _MPT_SCSI_HOST {
 	int			  port;
 	u32			  pad0;
 	struct scsi_cmnd	**ScsiLookup;
-	VirtDevice		**Targets;
+	VirtTarget		**Targets;
 	MPT_LOCAL_REPLY		 *pLocal;		/* used for internal commands */
 	struct timer_list	  timer;
 		/* Pool of memory for holding SCpnts before doing

drivers/message/fusion/mptctl.c

@@ -1245,7 +1245,7 @@ mptctl_gettargetinfo (unsigned long arg)
 	MPT_ADAPTER		*ioc;
 	struct Scsi_Host	*sh;
 	MPT_SCSI_HOST		*hd;
-	VirtDevice		*vdev;
+	VirtTarget		*vdev;
 	char			*pmem;
 	int			*pdata;
 	IOCPage2_t		*pIoc2;
@@ -1822,7 +1822,7 @@ mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr)
 	case MPI_FUNCTION_SCSI_IO_REQUEST:
 		if (ioc->sh) {
 			SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
-			VirtDevice	*pTarget = NULL;
+			VirtTarget	*pTarget = NULL;
 			MPT_SCSI_HOST	*hd = NULL;
 			int qtag = MPI_SCSIIO_CONTROL_UNTAGGED;
 			int scsidir = 0;

drivers/message/fusion/mptfc.c

@@ -90,8 +90,10 @@ static struct scsi_host_template mptfc_driver_template = {
 	.name				= "MPT FC Host",
 	.info				= mptscsih_info,
 	.queuecommand			= mptscsih_qcmd,
+	.target_alloc			= mptscsih_target_alloc,
 	.slave_alloc			= mptscsih_slave_alloc,
 	.slave_configure		= mptscsih_slave_configure,
+	.target_destroy			= mptscsih_target_destroy,
 	.slave_destroy			= mptscsih_slave_destroy,
 	.change_queue_depth 		= mptscsih_change_queue_depth,
 	.eh_abort_handler		= mptscsih_abort,
@@ -292,10 +294,10 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 	memset(mem, 0, sz);
-	hd->Targets = (VirtDevice **) mem;
+	hd->Targets = (VirtTarget **) mem;
 
 	dprintk((KERN_INFO
-	  "  Targets @ %p, sz=%d\n", hd->Targets, sz));
+	  "  vdev @ %p, sz=%d\n", hd->Targets, sz));
 
 	/* Clear the TM flags
 	 */

drivers/message/fusion/mptsas.c

@@ -228,31 +228,35 @@ static void mptsas_print_expander_pg1(SasExpanderPage1_t *pg1)
  * implement ->target_alloc.
  */
 static int
-mptsas_slave_alloc(struct scsi_device *device)
+mptsas_slave_alloc(struct scsi_device *sdev)
 {
-	struct Scsi_Host	*host = device->host;
+	struct Scsi_Host	*host = sdev->host;
 	MPT_SCSI_HOST		*hd = (MPT_SCSI_HOST *)host->hostdata;
 	struct sas_rphy		*rphy;
 	struct mptsas_portinfo	*p;
+	VirtTarget		*vtarget;
 	VirtDevice		*vdev;
-	uint			target = device->id;
+	struct scsi_target 	*starget;
 	int i;
 
-	if ((vdev = hd->Targets[target]) != NULL)
-		goto out;
-
 	vdev = kmalloc(sizeof(VirtDevice), GFP_KERNEL);
 	if (!vdev) {
 		printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
 				hd->ioc->name, sizeof(VirtDevice));
 		return -ENOMEM;
 	}
-
 	memset(vdev, 0, sizeof(VirtDevice));
-	vdev->tflags = MPT_TARGET_FLAGS_Q_YES|MPT_TARGET_FLAGS_VALID_INQUIRY;
 	vdev->ioc_id = hd->ioc->id;
+	sdev->hostdata = vdev;
+	starget = scsi_target(sdev);
+	vtarget = starget->hostdata;
+	vdev->vtarget = vtarget;
+	if (vtarget->num_luns == 0) {
+		vtarget->tflags = MPT_TARGET_FLAGS_Q_YES|MPT_TARGET_FLAGS_VALID_INQUIRY;
+		hd->Targets[sdev->id] = vtarget;
+	}
 
-	rphy = dev_to_rphy(device->sdev_target->dev.parent);
+	rphy = dev_to_rphy(sdev->sdev_target->dev.parent);
 	list_for_each_entry(p, &hd->ioc->sas_topology, list) {
 		for (i = 0; i < p->num_phys; i++) {
 			if (p->phy_info[i].attached.sas_address ==
@@ -260,7 +264,7 @@ mptsas_slave_alloc(struct scsi_device *device)
 				vdev->target_id =
 					p->phy_info[i].attached.target;
 				vdev->bus_id = p->phy_info[i].attached.bus;
-				hd->Targets[device->id] = vdev;
+				vdev->lun = sdev->lun;
 				goto out;
 			}
 		}
@@ -271,8 +275,10 @@ mptsas_slave_alloc(struct scsi_device *device)
 	return -ENODEV;
 
  out:
-	vdev->num_luns++;
-	device->hostdata = vdev;
+	vtarget->ioc_id = vdev->ioc_id;
+	vtarget->target_id = vdev->target_id;
+	vtarget->bus_id = vdev->bus_id;
+	vtarget->num_luns++;
 	return 0;
 }
 
@@ -283,8 +289,10 @@ static struct scsi_host_template mptsas_driver_template = {
 	.name				= "MPT SPI Host",
 	.info				= mptscsih_info,
 	.queuecommand			= mptscsih_qcmd,
+	.target_alloc			= mptscsih_target_alloc,
 	.slave_alloc			= mptsas_slave_alloc,
 	.slave_configure		= mptscsih_slave_configure,
+	.target_destroy			= mptscsih_target_destroy,
 	.slave_destroy			= mptscsih_slave_destroy,
 	.change_queue_depth 		= mptscsih_change_queue_depth,
 	.eh_abort_handler		= mptscsih_abort,
@@ -987,7 +995,6 @@ mptsas_probe_hba_phys(MPT_ADAPTER *ioc, int *index)
 		goto out_free_port_info;
 
 	list_add_tail(&port_info->list, &ioc->sas_topology);
-
 	for (i = 0; i < port_info->num_phys; i++) {
 		mptsas_sas_phy_pg0(ioc, &port_info->phy_info[i],
 			(MPI_SAS_PHY_PGAD_FORM_PHY_NUMBER <<
@@ -1263,10 +1270,10 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 	memset(mem, 0, sz);
-	hd->Targets = (VirtDevice **) mem;
+	hd->Targets = (VirtTarget **) mem;
 
 	dprintk((KERN_INFO
-	  "  Targets @ %p, sz=%d\n", hd->Targets, sz));
+	  "  vtarget @ %p, sz=%d\n", hd->Targets, sz));
 
 	/* Clear the TM flags
 	 */

drivers/message/fusion/mptscsih.h

@@ -91,7 +91,9 @@ extern int mptscsih_resume(struct pci_dev *pdev);
 extern int mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, int length, int func);
 extern const char * mptscsih_info(struct Scsi_Host *SChost);
 extern int mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *));
+extern int mptscsih_target_alloc(struct scsi_target *starget);
 extern int mptscsih_slave_alloc(struct scsi_device *device);
+extern void mptscsih_target_destroy(struct scsi_target *starget);
 extern void mptscsih_slave_destroy(struct scsi_device *device);
 extern int mptscsih_slave_configure(struct scsi_device *device);
 extern int mptscsih_abort(struct scsi_cmnd * SCpnt);

drivers/message/fusion/mptspi.c

@@ -109,8 +109,10 @@ static struct scsi_host_template mptspi_driver_template = {
 	.name				= "MPT SPI Host",
 	.info				= mptscsih_info,
 	.queuecommand			= mptscsih_qcmd,
+	.target_alloc			= mptscsih_target_alloc,
 	.slave_alloc			= mptscsih_slave_alloc,
 	.slave_configure		= mptscsih_slave_configure,
+	.target_destroy			= mptscsih_target_destroy,
 	.slave_destroy			= mptscsih_slave_destroy,
 	.change_queue_depth 		= mptscsih_change_queue_depth,
 	.eh_abort_handler		= mptscsih_abort,
@@ -312,10 +314,10 @@ mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 	memset(mem, 0, sz);
-	hd->Targets = (VirtDevice **) mem;
+	hd->Targets = (VirtTarget **) mem;
 
 	dprintk((KERN_INFO
-	  "  Targets @ %p, sz=%d\n", hd->Targets, sz));
+	  "  vdev @ %p, sz=%d\n", hd->Targets, sz));
 
 	/* Clear the TM flags
 	 */