[SCSI] fusion SAS support (mptsas driver) updates

Summary of Changes:
* splitting mpt_interrupt per Christophs suggestion
about a month ago
* rename ScsiCfgData to SpiCfgData structure,
then move all the raid related info into
new structure called RaidCfgData.  This is
done because SAS supports RAID, as well as SPI,
so the raid stuff should be seperate.
* incorrect timeout calculation for cntdn
inside WaitForDoorbellAck and WaitForDoortbellInt
* add support for interpreting SAS Log Info
* Increase Event Log Size from 0xA to 0x32
* Fix bug in mptsas/mptfc/mptspi - when controller
has Initiator Mode Disabled, and only running in
TargetMode, the mptctl would panic when loading.
The fix is to return 0, instead of -ENODEV, in
SCSI LLD respective probe routines
* Fix bug in mptlan.c - driver will panic if
there is host reset, due to dev being set to
zero in mpt_lan_ioc_reset
* Fix's for SPI - Echo Buffer
* Several fix's in mptscsih_io_done - FCP Response
info, RESIDUAL_MISMATCH, Data Underrun, etc.
* Cleanup Error Handling - EH handlers,
mptscsih_flush_cmds, and zeroing out ScsiLookup
from mptscsih_qcmd
* Cleanup asyn event handling from
mptscsih -> mptscsih_event_process.  Also
added support for SAS Persistent Table Full,
an asyn event
Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/message/fusion/mptbase.h

@@ -77,8 +77,8 @@
 #define COPYRIGHT	"Copyright (c) 1999-2005 " MODULEAUTHOR
 #endif
 
-#define MPT_LINUX_VERSION_COMMON	"3.03.02"
-#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.03.02"
+#define MPT_LINUX_VERSION_COMMON	"3.03.03"
+#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.03.03"
 #define WHAT_MAGIC_STRING		"@" "(" "#" ")"
 
 #define show_mptmod_ver(s,ver)  \
@@ -424,7 +424,7 @@ typedef struct _MPT_IOCTL {
 /*
  *  Event Structure and define
  */
-#define MPTCTL_EVENT_LOG_SIZE		(0x0000000A)
+#define MPTCTL_EVENT_LOG_SIZE		(0x000000032)
 typedef struct _mpt_ioctl_events {
 	u32	event;		/* Specified by define above */
 	u32	eventContext;	/* Index or counter */
@@ -452,16 +452,13 @@ typedef struct _mpt_ioctl_events {
 #define MPT_SCSICFG_ALL_IDS		0x02	/* WriteSDP1 to all IDS */
 /* #define MPT_SCSICFG_BLK_NEGO		0x10	   WriteSDP1 with WDTR and SDTR disabled */
 
-typedef	struct _ScsiCfgData {
+typedef	struct _SpiCfgData {
 	u32		 PortFlags;
 	int		*nvram;			/* table of device NVRAM values */
-	IOCPage2_t	*pIocPg2;		/* table of Raid Volumes */
-	IOCPage3_t	*pIocPg3;		/* table of physical disks */
 	IOCPage4_t	*pIocPg4;		/* SEP devices addressing */
 	dma_addr_t	 IocPg4_dma;		/* Phys Addr of IOCPage4 data */
 	int		 IocPg4Sz;		/* IOCPage4 size */
 	u8		 dvStatus[MPT_MAX_SCSI_DEVICES];
-	int		 isRaid;		/* bit field, 1 if RAID */
 	u8		 minSyncFactor;		/* 0xFF if async */
 	u8		 maxSyncOffset;		/* 0 if async */
 	u8		 maxBusWidth;		/* 0 if narrow, 1 if wide */
@@ -473,10 +470,14 @@ typedef	struct _ScsiCfgData {
 	u8		 dvScheduled;		/* 1 if scheduled */
 	u8		 forceDv;		/* 1 to force DV scheduling */
 	u8		 noQas;			/* Disable QAS for this adapter */
-	u8		 Saf_Te;		/* 1 to force all Processors as SAF-TE if Inquiry data length is too short to check for SAF-TE */
+	u8		 Saf_Te;		/* 1 to force all Processors as
+						 * SAF-TE if Inquiry data length
+						 * is too short to check for SAF-TE
+						 */
 	u8		 mpt_dv;		/* command line option: enhanced=1, basic=0 */
+	u8		 bus_reset;		/* 1 to allow bus reset */
 	u8		 rsvd[1];
-} ScsiCfgData;
+}SpiCfgData;
 
 typedef	struct _SasCfgData {
 	u8		 ptClear;		/* 1 to automatically clear the
@@ -486,6 +487,12 @@ typedef	struct _SasCfgData {
 						 */
 }SasCfgData;
 
+typedef	struct _RaidCfgData {
+	IOCPage2_t	*pIocPg2;		/* table of Raid Volumes */
+	IOCPage3_t	*pIocPg3;		/* table of physical disks */
+	int		 isRaid;		/* bit field, 1 if RAID */
+}RaidCfgData;
+
 /*
  *  Adapter Structure - pci_dev specific. Maximum: MPT_MAX_ADAPTERS
  */
@@ -546,7 +553,8 @@ typedef struct _MPT_ADAPTER
 	struct pci_dev		*pcidev;	/* struct pci_dev pointer */
 	u8			__iomem *memmap;	/* mmap address */
 	struct Scsi_Host	*sh;		/* Scsi Host pointer */
-	ScsiCfgData		spi_data;	/* Scsi config. data */
+	SpiCfgData		spi_data;	/* Scsi config. data */
+	RaidCfgData		raid_data;	/* Raid config. data */
 	SasCfgData		sas_data;	/* Sas config. data */
 	MPT_IOCTL		*ioctl;		/* ioctl data pointer */
 	struct proc_dir_entry	*ioc_dentry;

drivers/message/fusion/mptctl.c

@@ -1326,7 +1326,7 @@ mptctl_gettargetinfo (unsigned long arg)
 		 */
 		if (hd && hd->Targets) {
 			mpt_findImVolumes(ioc);
-			pIoc2 = ioc->spi_data.pIocPg2;
+			pIoc2 = ioc->raid_data.pIocPg2;
 			for ( id = 0; id <= max_id; ) {
 				if ( pIoc2 && pIoc2->NumActiveVolumes ) {
 					if ( id == pIoc2->RaidVolume[0].VolumeID ) {
@@ -1348,7 +1348,7 @@ mptctl_gettargetinfo (unsigned long arg)
 						--maxWordsLeft;
 						goto next_id;
 					} else {
-						pIoc3 = ioc->spi_data.pIocPg3;
+						pIoc3 = ioc->raid_data.pIocPg3;
             					for ( jj = 0; jj < pIoc3->NumPhysDisks; jj++ ) {
                     					if ( pIoc3->PhysDisk[jj].PhysDiskID == id )
 								goto next_id;

drivers/message/fusion/mptfc.c

@@ -189,7 +189,7 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		printk(MYIOC_s_WARN_FMT
 			"Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
 			ioc->name, ioc);
-		return -ENODEV;
+		return 0;
 	}
 
 	sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));

drivers/message/fusion/mptlan.c

@@ -312,7 +312,12 @@ static int
 mpt_lan_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
 {
 	struct net_device *dev = ioc->netdev;
-	struct mpt_lan_priv *priv = netdev_priv(dev);
+	struct mpt_lan_priv *priv;
+
+	if (dev == NULL)
+		return(1);
+	else
+		priv = netdev_priv(dev);
 
 	dlprintk((KERN_INFO MYNAM ": IOC %s_reset routed to LAN driver!\n",
 			reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (

drivers/message/fusion/mptsas.c

@@ -980,7 +980,7 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		printk(MYIOC_s_WARN_FMT
 			"Skipping ioc=%p because SCSI Initiator mode "
 			"is NOT enabled!\n", ioc->name, ioc);
-		return -ENODEV;
+		return 0;
 	}
 
 	sh = scsi_host_alloc(&mptsas_driver_template, sizeof(MPT_SCSI_HOST));

drivers/message/fusion/mptscsih.h

 /*
- *  linux/drivers/message/fusion/mptscsi.h
+ *  linux/drivers/message/fusion/mptscsih.h
  *      High performance SCSI / Fibre Channel SCSI Host device driver.
  *      For use with PCI chip/adapter(s):
  *          LSIFC9xx/LSI409xx Fibre Channel
@@ -53,8 +53,8 @@
  *	SCSI Public stuff...
  */
 
-#define MPT_SCSI_CMD_PER_DEV_HIGH	31
-#define MPT_SCSI_CMD_PER_DEV_LOW	7
+#define MPT_SCSI_CMD_PER_DEV_HIGH	64
+#define MPT_SCSI_CMD_PER_DEV_LOW	32
 
 #define MPT_SCSI_CMD_PER_LUN		7
 
@@ -77,6 +77,7 @@
 #define MPTSCSIH_MAX_WIDTH              1
 #define MPTSCSIH_MIN_SYNC               0x08
 #define MPTSCSIH_SAF_TE                 0
+#define MPTSCSIH_PT_CLEAR               0
 
 
 #endif
@@ -105,3 +106,4 @@ extern int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pE
 extern int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
 extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth);
 extern void mptscsih_timer_expired(unsigned long data);
+extern void scsi_print_command(struct scsi_cmnd *cmd);

drivers/message/fusion/mptspi.c

@@ -199,7 +199,7 @@ mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		printk(MYIOC_s_WARN_FMT
 			"Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
 			ioc->name, ioc);
-		return -ENODEV;
+		return 0;
 	}
 
 	sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST));