[SCSI] mptspi: Add transport class Domain Validation

This is the first half of a patch to add the generic domain validation
to mptspi.  It also creates a secondary "virtual" channel for raid
component devices since these are now exported with no_uld_attach.

What Eric and I would have really liked is to export all physical
components on channel 0 and all raid components on channel 1.
Unfortunately, this would result in device renumbering on platforms with
mixed RAID/Physical devices which was considered unacceptable for
userland stability reasons.

Still to be done is to plug back the extra parameter setting and DV
pieces on reset and hotplug.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/message/fusion/Kconfig

@@ -9,6 +9,7 @@ config FUSION_SPI
 	tristate "Fusion MPT ScsiHost drivers for SPI"
 	depends on PCI && SCSI
 	select FUSION
+	select SCSI_SPI_ATTRS
 	---help---
 	  SCSI HOST support for a parallel SCSI host adapters.
 

drivers/message/fusion/mptbase.c

@@ -1120,65 +1120,6 @@ mpt_verify_adapter(int iocid, MPT_ADAPTER **iocpp)
 	return -1;
 }
 
-int
-mpt_alt_ioc_wait(MPT_ADAPTER *ioc)
-{
-	int loop_count = 30 * 4;  /* Wait 30 seconds */
-	int status = -1; /* -1 means failed to get board READY */
-
-	do {
-		spin_lock(&ioc->initializing_hba_lock);
-		if (ioc->initializing_hba_lock_flag == 0) {
-			ioc->initializing_hba_lock_flag=1;
-			spin_unlock(&ioc->initializing_hba_lock);
-			status = 0;
-			break;
-		}
-		spin_unlock(&ioc->initializing_hba_lock);
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(HZ/4);
-	} while (--loop_count);
-
-	return status;
-}
-
-/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
-/*
- *	mpt_bringup_adapter - This is a wrapper function for mpt_do_ioc_recovery
- *	@ioc: Pointer to MPT adapter structure
- *	@sleepFlag: Use schedule if CAN_SLEEP else use udelay.
- *
- *	This routine performs all the steps necessary to bring the IOC
- *	to a OPERATIONAL state.
- *
- *      Special Note: This function was added with spin lock's so as to allow
- *      the dv(domain validation) work thread to succeed on the other channel
- *      that maybe occuring at the same time when this function is called.
- *      Without this lock, the dv would fail when message frames were
- *      requested during hba bringup on the alternate ioc.
- */
-static int
-mpt_bringup_adapter(MPT_ADAPTER *ioc, int sleepFlag)
-{
-	int r;
-
-	if(ioc->alt_ioc) {
-		if((r=mpt_alt_ioc_wait(ioc->alt_ioc)!=0))
-			return r;
-	}
-
-	r = mpt_do_ioc_recovery(ioc, MPT_HOSTEVENT_IOC_BRINGUP,
-	    CAN_SLEEP);
-
-	if(ioc->alt_ioc) {
-		spin_lock(&ioc->alt_ioc->initializing_hba_lock);
-		ioc->alt_ioc->initializing_hba_lock_flag=0;
-		spin_unlock(&ioc->alt_ioc->initializing_hba_lock);
-	}
-
-return r;
-}
-
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /*
  *	mpt_attach - Install a PCI intelligent MPT adapter.
@@ -1482,7 +1423,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	 */
 	mpt_detect_bound_ports(ioc, pdev);
 
-	if ((r = mpt_bringup_adapter(ioc, CAN_SLEEP)) != 0){
+	if ((r = mpt_do_ioc_recovery(ioc, MPT_HOSTEVENT_IOC_BRINGUP,
+	    CAN_SLEEP)) != 0){
 		printk(KERN_WARNING MYNAM
 		  ": WARNING - %s did not initialize properly! (%d)\n",
 		  ioc->name, r);
@@ -1629,7 +1571,6 @@ mpt_resume(struct pci_dev *pdev)
 	MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
 	u32 device_state = pdev->current_state;
 	int recovery_state;
-	int ii;
 
 	printk(MYIOC_s_INFO_FMT
 	"pci-resume: pdev=0x%p, slot=%s, Previous operating state [D%d]\n",
@@ -1643,14 +1584,6 @@ mpt_resume(struct pci_dev *pdev)
 	CHIPREG_WRITE32(&ioc->chip->IntMask, MPI_HIM_DIM);
 	ioc->active = 1;
 
-	/* F/W not running */
-	if(!CHIPREG_READ32(&ioc->chip->Doorbell)) {
-		/* enable domain validation flags */
-		for (ii=0; ii < MPT_MAX_SCSI_DEVICES; ii++) {
-			ioc->spi_data.dvStatus[ii] |= MPT_SCSICFG_NEED_DV;
-		}
-	}
-
 	printk(MYIOC_s_INFO_FMT
 		"pci-resume: ioc-state=0x%x,doorbell=0x%x\n",
 		ioc->name,
@@ -6435,7 +6368,6 @@ EXPORT_SYMBOL(mpt_read_ioc_pg_3);
 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

@@ -331,6 +331,7 @@ typedef struct _SYSIF_REGS
  *	VirtDevice - FC LUN device or SCSI target device
  */
 typedef struct _VirtTarget {
+	struct scsi_target	*starget;
 	u8			 tflags;
 	u8			 ioc_id;
 	u8			 target_id;
@@ -343,7 +344,6 @@ typedef struct _VirtTarget {
 	u8			 type;		/* byte 0 of Inquiry data */
 	u32			 num_luns;
 	u32			 luns[8];		/* Max LUNs is 256 */
-	u8			 inq_data[8];
 } VirtTarget;
 
 typedef struct _VirtDevice {
@@ -364,6 +364,7 @@ typedef struct _VirtDevice {
 #define MPT_TARGET_FLAGS_Q_YES		0x08
 #define MPT_TARGET_FLAGS_VALID_56	0x10
 #define MPT_TARGET_FLAGS_SAF_TE_ISSUED	0x20
+#define MPT_TARGET_FLAGS_RAID_COMPONENT	0x40
 
 /*
  *	/proc/mpt interface
@@ -447,13 +448,6 @@ typedef struct _mpt_ioctl_events {
  *	Substructure to store SCSI specific configuration page data
  */
 						/* dvStatus defines: */
-#define MPT_SCSICFG_NEGOTIATE		0x01	/* Negotiate on next IO */
-#define MPT_SCSICFG_NEED_DV		0x02	/* Schedule DV */
-#define MPT_SCSICFG_DV_PENDING		0x04	/* DV on this physical id pending */
-#define MPT_SCSICFG_DV_NOT_DONE		0x08	/* DV has not been performed */
-#define MPT_SCSICFG_BLK_NEGO		0x10	/* WriteSDP1 with WDTR and SDTR disabled */
-#define MPT_SCSICFG_RELOAD_IOC_PG3	0x20	/* IOC Pg 3 data is obsolete */
-						/* Args passed to writeSDP1: */
 #define MPT_SCSICFG_USE_NVRAM		0x01	/* WriteSDP1 using NVRAM */
 #define MPT_SCSICFG_ALL_IDS		0x02	/* WriteSDP1 to all IDS */
 /* #define MPT_SCSICFG_BLK_NEGO		0x10	   WriteSDP1 with WDTR and SDTR disabled */
@@ -464,7 +458,6 @@ typedef	struct _SpiCfgData {
 	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];
 	u8		 minSyncFactor;		/* 0xFF if async */
 	u8		 maxSyncOffset;		/* 0 if async */
 	u8		 maxBusWidth;		/* 0 if narrow, 1 if wide */
@@ -474,13 +467,11 @@ typedef	struct _SpiCfgData {
 	u8		 sdp0version;		/* SDP0 version */
 	u8		 sdp0length;		/* SDP0 length  */
 	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		 mpt_dv;		/* command line option: enhanced=1, basic=0 */
 	u8		 bus_reset;		/* 1 to allow bus reset */
 	u8		 rsvd[1];
 }SpiCfgData;
@@ -1033,7 +1024,6 @@ 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);
 
 /*
  *  Public data decl's...

drivers/message/fusion/mptscsih.h

@@ -60,16 +60,6 @@
 
 #define MPT_SCSI_MAX_SECTORS    8192
 
-/* To disable domain validation, uncomment the
- * following line. No effect for FC devices.
- * For SCSI devices, driver will negotiate to
- * NVRAM settings (if available) or to maximum adapter
- * capabilities.
- */
-
-#define MPTSCSIH_ENABLE_DOMAIN_VALIDATION
-
-
 /* SCSI driver setup structure. Settings can be overridden
  * by command line options.
  */
@@ -109,3 +99,4 @@ 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 int mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 target, u8 lun, int ctx2abort, ulong timeout);
+extern int mptscsih_raid_id_to_num(MPT_SCSI_HOST *hd, uint physdiskid);