mptbase.c

linux-2.4.29操作系统的源码

	mem_phys = msize = 0;
	port = psize = 0;
	for (ii=0; ii < DEVICE_COUNT_RESOURCE; ii++) {
		if (pdev->PCI_BASEADDR_FLAGS(ii) & PCI_BASE_ADDRESS_SPACE_IO) {
			/* Get I/O space! */
			port = pdev->PCI_BASEADDR_START(ii);
			psize = PCI_BASEADDR_SIZE(pdev,ii);
		} else {
			/* Get memmap */
			mem_phys = pdev->PCI_BASEADDR_START(ii);
			msize = PCI_BASEADDR_SIZE(pdev,ii);
			break;
		}
	}
	ioc->mem_size = msize;

	if (ii == DEVICE_COUNT_RESOURCE) {
		printk(KERN_ERR MYNAM ": ERROR - MPT adapter has no memory regions defined!\n");
		kfree(ioc);
		return -EINVAL;
	}

	dprintk((KERN_INFO MYNAM ": MPT adapter @ %lx, msize=%dd bytes\n", mem_phys, msize));
	dprintk((KERN_INFO MYNAM ": (port i/o @ %lx, psize=%dd bytes)\n", port, psize));
	dprintk((KERN_INFO MYNAM ": Using %s register access method\n", PortIo ? "PortIo" : "MemMap"));

	mem = NULL;
	if (! PortIo) {
		/* Get logical ptr for PciMem0 space */
		/*mem = ioremap(mem_phys, msize);*/
		mem = ioremap(mem_phys, 0x100);
		if (mem == NULL) {
			printk(KERN_ERR MYNAM ": ERROR - Unable to map adapter memory!\n");
			kfree(ioc);
			return -EINVAL;
		}
		ioc->memmap = mem;
	}
	dprintk((KERN_INFO MYNAM ": mem = %p, mem_phys = %lx\n", mem, mem_phys));

	dprintk((KERN_INFO MYNAM ": facts @ %p, pfacts[0] @ %p\n",
			&ioc->facts, &ioc->pfacts[0]));
	if (PortIo) {
		u8 *pmem = (u8*)port;
		ioc->mem_phys = port;
		ioc->chip = (SYSIF_REGS*)pmem;
	} else {
		ioc->mem_phys = mem_phys;
		ioc->chip = (SYSIF_REGS*)mem;
	}

	/* Save Port IO values incase we need to do downloadboot */
	{
		u8 *pmem = (u8*)port;
		ioc->pio_mem_phys = port;
		ioc->pio_chip = (SYSIF_REGS*)pmem;
	}

	ioc->chip_type = FCUNK;
	if (pdev->device == MPI_MANUFACTPAGE_DEVICEID_FC909) {
		ioc->chip_type = FC909;
		ioc->prod_name = "LSIFC909";
	}
	else if (pdev->device == MPI_MANUFACTPAGE_DEVICEID_FC929) {
		ioc->chip_type = FC929;
		ioc->prod_name = "LSIFC929";
	}
	else if (pdev->device == MPI_MANUFACTPAGE_DEVICEID_FC919) {
		ioc->chip_type = FC919;
		ioc->prod_name = "LSIFC919";
	}
	else if (pdev->device == MPI_MANUFACTPAGE_DEVICEID_FC929X) {
		ioc->chip_type = FC929X;
		pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
		if (revision < XL_929) {
			ioc->prod_name = "LSIFC929X";
			/* 929X Chip Fix. Set Split transactions level
		 	* for PCIX. Set MOST bits to zero.
		 	*/
			pci_read_config_byte(pdev, 0x6a, &pcixcmd);
			pcixcmd &= 0x8F;
			pci_write_config_byte(pdev, 0x6a, pcixcmd);
		} else {
			ioc->prod_name = "LSIFC929XL";
			/* 929XL Chip Fix. Set MMRBC to 0x08.
		 	*/
			pci_read_config_byte(pdev, 0x6a, &pcixcmd);
			pcixcmd |= 0x08;
			pci_write_config_byte(pdev, 0x6a, pcixcmd);
		}
	}
	else if (pdev->device == MPI_MANUFACTPAGE_DEVICEID_FC919X) {
		ioc->chip_type = FC919X;
		ioc->prod_name = "LSIFC919X";
		/* 919X Chip Fix. Set Split transactions level
		 * for PCIX. Set MOST bits to zero.
		 */
		pci_read_config_byte(pdev, 0x6a, &pcixcmd);
		pcixcmd &= 0x8F;
		pci_write_config_byte(pdev, 0x6a, pcixcmd);
	}
	else if (pdev->device == MPI_MANUFACTPAGE_DEVID_53C1030) {
		ioc->chip_type = C1030;
		ioc->prod_name = "LSI53C1030";
		/* 1030 Chip Fix. Disable Split transactions
		 * for PCIX. Set MOST bits to zero if Rev < C0( = 8).
		 */
		pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
		if (revision < C0_1030) {
			pci_read_config_byte(pdev, 0x6a, &pcixcmd);
			pcixcmd &= 0x8F;
			pci_write_config_byte(pdev, 0x6a, pcixcmd);
		}
	}
	else if (pdev->device == MPI_MANUFACTPAGE_DEVID_1030_53C1035) {
		ioc->chip_type = C1035;
		ioc->prod_name = "LSI53C1035";
	}

	sprintf(ioc->name, "ioc%d", ioc->id);

	Q_INIT(&ioc->FreeQ, MPT_FRAME_HDR);
	spin_lock_init(&ioc->FreeQlock);

	/* Disable all! */
	CHIPREG_WRITE32(&ioc->chip->IntMask, 0xFFFFFFFF);
	ioc->active = 0;
	CHIPREG_WRITE32(&ioc->chip->IntStatus, 0);

	/* tack onto tail of our MPT adapter list */
	Q_ADD_TAIL(&MptAdapters, ioc, MPT_ADAPTER);

	/* Set lookup ptr. */
	mpt_adapters[ioc->id] = ioc;

	ioc->pci_irq = -1;
	if (pdev->irq) {
		r = request_irq(pdev->irq, mpt_interrupt, SA_SHIRQ, ioc->name, ioc);

		if (r < 0) {
#ifndef __sparc__
			printk(MYIOC_s_ERR_FMT "Unable to allocate interrupt %d!\n",
					ioc->name, pdev->irq);
#else
			printk(MYIOC_s_ERR_FMT "Unable to allocate interrupt %s!\n",
					ioc->name, __irq_itoa(pdev->irq));
#endif
			Q_DEL_ITEM(ioc);
			mpt_adapters[ioc->id] = NULL;
			iounmap(mem);
			kfree(ioc);
			return -EBUSY;
		}

		ioc->pci_irq = pdev->irq;

		pci_set_master(pdev);			/* ?? */

#ifndef __sparc__
		dprintk((KERN_INFO MYNAM ": %s installed at interrupt %d\n", ioc->name, pdev->irq));
#else
		dprintk((KERN_INFO MYNAM ": %s installed at interrupt %s\n", ioc->name, __irq_itoa(pdev->irq)));
#endif
	}

	/* NEW!  20010220 -sralston
	 * Check for "bound ports" (929, 929X, 1030, 1035) to reduce redundant resets.
	 */
	if ((ioc->chip_type == FC929) || (ioc->chip_type == C1030)
			|| (ioc->chip_type == C1035) || (ioc->chip_type == FC929X))
		mpt_detect_bound_ports(ioc, pdev);

	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);
	}

	return r;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mpt_do_ioc_recovery - Initialize or recover MPT adapter.
 *	@ioc: Pointer to MPT adapter structure
 *	@reason: Event word / reason
 *	@sleepFlag: Use schedule if CAN_SLEEP else use udelay.
 *
 *	This routine performs all the steps necessary to bring the IOC
 *	to a OPERATIONAL state.
 *
 *	This routine also pre-fetches the LAN MAC address of a Fibre Channel
 *	MPT adapter.
 *
 *	Returns:
 *		 0 for success
 *		-1 if failed to get board READY
 *		-2 if READY but IOCFacts Failed
 *		-3 if READY but PrimeIOCFifos Failed
 *		-4 if READY but IOCInit Failed
 */
static int
mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
{
	int	 hard_reset_done = 0;
	int	 alt_ioc_ready = 0;
	int	 hard;
	int	 r;
	int	 ii;
	int	 handlers;
	int	 ret = 0;
	int	 reset_alt_ioc_active = 0;

	printk(KERN_INFO MYNAM ": Initiating %s %s\n",
			ioc->name, reason==MPT_HOSTEVENT_IOC_BRINGUP ? "bringup" : "recovery");

	/* Disable reply interrupts (also blocks FreeQ) */
	CHIPREG_WRITE32(&ioc->chip->IntMask, 0xFFFFFFFF);
	ioc->active = 0;

	if (ioc->alt_ioc) {
		if (ioc->alt_ioc->active)
			reset_alt_ioc_active = 1;

		/* Disable alt-IOC's reply interrupts (and FreeQ) for a bit ... */
		CHIPREG_WRITE32(&ioc->alt_ioc->chip->IntMask, 0xFFFFFFFF);
		ioc->alt_ioc->active = 0;
	}

	hard = 1;
	if (reason == MPT_HOSTEVENT_IOC_BRINGUP)
		hard = 0;

	if ((hard_reset_done = MakeIocReady(ioc, hard, sleepFlag)) < 0) {
		if (hard_reset_done == -4) {
			printk(KERN_WARNING MYNAM ": %s Owned by PEER..skipping!\n",
					ioc->name);

			if (reset_alt_ioc_active && ioc->alt_ioc) {
				/* (re)Enable alt-IOC! (reply interrupt, FreeQ) */
				dprintk((KERN_INFO MYNAM ": alt-%s reply irq re-enabled\n",
						ioc->alt_ioc->name));
				CHIPREG_WRITE32(&ioc->alt_ioc->chip->IntMask, ~(MPI_HIM_RIM));
				ioc->alt_ioc->active = 1;
			}

		} else {
			printk(KERN_WARNING MYNAM ": %s NOT READY WARNING!\n",
					ioc->name);
		}
		return -1;
	}

	/* hard_reset_done = 0 if a soft reset was performed
	 * and 1 if a hard reset was performed.
	 */
	if (hard_reset_done && reset_alt_ioc_active && ioc->alt_ioc) {
		if ((r = MakeIocReady(ioc->alt_ioc, 0, sleepFlag)) == 0)
			alt_ioc_ready = 1;
		else
			printk(KERN_WARNING MYNAM
					": alt-%s: (%d) Not ready WARNING!\n",
					ioc->alt_ioc->name, r);
	}

	for (ii=0; ii<5; ii++) {
	/* Get IOC facts! Allow 1 retry */
	if ((r = GetIocFacts(ioc, sleepFlag, reason)) != 0) {
		dinitprintk((MYIOC_s_INFO_FMT "ii=%d IocFacts failed r=%x\n", ioc->name, ii, r));
	} else
		break;
	}
	

	if (r) {
		dinitprintk((MYIOC_s_INFO_FMT "Retry IocFacts failed r=%x\n", ioc->name, r));
		ret = -2;
	} else if (reason == MPT_HOSTEVENT_IOC_BRINGUP) {
		MptDisplayIocCapabilities(ioc);
	}

	if (alt_ioc_ready) {
		if ((r = GetIocFacts(ioc->alt_ioc, sleepFlag, reason)) != 0) {
			dinitprintk((MYIOC_s_INFO_FMT "Initial Alt IocFacts failed r=%x\n", ioc->name, r));
			/* Retry - alt IOC was initialized once
			 */
			r = GetIocFacts(ioc->alt_ioc, sleepFlag, reason);
		}
		if (r) {
			dinitprintk((MYIOC_s_INFO_FMT "Retry Alt IocFacts failed r=%x\n", ioc->name, r));
			alt_ioc_ready = 0;
			reset_alt_ioc_active = 0;
		} else if (reason == MPT_HOSTEVENT_IOC_BRINGUP) {
			MptDisplayIocCapabilities(ioc->alt_ioc);
		}
	}

	/* Prime reply & request queues!
	 * (mucho alloc's) Must be done prior to
	 * init as upper addresses are needed for init.
	 * If fails, continue with alt-ioc processing
	 */
	if ((ret == 0) && ((r = PrimeIocFifos(ioc)) != 0))
		ret = -3;

	/* May need to check/upload firmware & data here!
	 * If fails, continue with alt-ioc processing
	 */
	if ((ret == 0) && ((r = SendIocInit(ioc, sleepFlag)) != 0))
		ret = -4;
// NEW!
	if (alt_ioc_ready && ((r = PrimeIocFifos(ioc->alt_ioc)) != 0)) {
		printk(KERN_WARNING MYNAM ": alt-%s: (%d) FIFO mgmt alloc WARNING!\n",
				ioc->alt_ioc->name, r);
		alt_ioc_ready = 0;
		reset_alt_ioc_active = 0;
	}

	if (alt_ioc_ready) {
		if ((r = SendIocInit(ioc->alt_ioc, sleepFlag)) != 0) {
			alt_ioc_ready = 0;
			reset_alt_ioc_active = 0;
			printk(KERN_WARNING MYNAM
				": alt-%s: (%d) init failure WARNING!\n",
					ioc->alt_ioc->name, r);
		}
	}

	if (reason == MPT_HOSTEVENT_IOC_BRINGUP){
		if (ioc->upload_fw) {
			ddlprintk((MYIOC_s_INFO_FMT
				"firmware upload required!\n", ioc->name));

			/* Controller is not operational, cannot do upload
			 */
			if (ret == 0) {
				r = mpt_do_upload(ioc, sleepFlag);
				if (r != 0)
					printk(KERN_WARNING MYNAM ": firmware upload failure!\n");
			}

			/* Handle the alt IOC too */
			if ((alt_ioc_ready) && (ioc->alt_ioc->upload_fw)){
				ddlprintk((MYIOC_s_INFO_FMT
					"Alt-ioc firmware upload required!\n",
					ioc->name));
				r = mpt_do_upload(ioc->alt_ioc, sleepFlag);
				if (r != 0)
					printk(KERN_WARNING MYNAM ": firmware upload failure!\n");
			}
		}
	}

	if (ret == 0) {
		/* Enable! (reply interrupt) */
		CHIPREG_WRITE32(&ioc->chip->IntMask, ~(MPI_HIM_RIM));
		ioc->active = 1;
	}

	if (reset_alt_ioc_active && ioc->alt_ioc) {
		/* (re)Enable alt-IOC! (reply interrupt) */
		dprintk((KERN_INFO MYNAM ": alt-%s reply irq re-enabled\n",
				ioc->alt_ioc->name));
		CHIPREG_WRITE32(&ioc->alt_ioc->chip->IntMask, ~(MPI_HIM_RIM));
		ioc->alt_ioc->active = 1;
	}

	/* NEW!  20010120 -sralston
	 *  Enable MPT base driver management of EventNotification
	 *  and EventAck handling.
	 */
	if ((ret == 0) && (!ioc->facts.EventState))
		(void) SendEventNotification(ioc, 1);	/* 1=Enable EventNotification */

	if (ioc->alt_ioc && alt_ioc_ready && !ioc->alt_ioc->facts.EventState)
		(void) SendEventNotification(ioc->alt_ioc, 1);	/* 1=Enable EventNotification */

	/* (Bugzilla:fibrebugs, #513)
	 * Bug fix (part 2)!  20010905 -sralston
	 *	Add additional "reason" check before call to GetLanConfigPages
	 *	(combined with GetIoUnitPage2 call).  This prevents a somewhat
	 *	recursive scenario; GetLanConfigPages times out, timer expired
	 *	routine calls HardResetHandler, which calls into here again,
	 *	and we try GetLanConfigPages again...
	 */
	if ((ret == 0) && (reason == MPT_HOSTEVENT_IOC_BRINGUP)) {
		if ((int)ioc->chip_type <= (int)FC929) {
			/*
			 *  Pre-fetch FC port WWN and stuff...
			 *  (FCPortPage0_t stuff)
			 */
			for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
				(void) GetFcPortPage0(ioc, ii);
			}

			if ((ioc->pfacts[0].ProtocolFlags & MPI_PORTFACTS_PROTOCOL_LAN) &&
			    (ioc->lan_cnfg_page0.Header.PageLength == 0)) {
				/*
				 *  Pre-fetch the ports LAN MAC address!
				 *  (LANPage1_t stuff)
				 */
				(void) GetLanConfigPages(ioc);
#ifdef MPT_DEBUG
				{
					u8 *a = (u8*)&ioc->lan_cnfg_page1.HardwareAddressLow;
					dprintk((MYIOC_s_INFO_FMT "LanAddr = %02X:%02X:%02X:%02X:%02X:%02X\n",
							ioc->name, a[5], a[4], a[3], a[2], a[1], a[0] ));
				}
#endif
			}
		} else {
			/* Get NVRAM and adapter maximums from SPP 0 and 2
			 */
			mpt_GetScsiPortSettings(ioc, 0);

			/* Get version and length of SDP 1
			 */
			mpt_readScsiDevicePageHeaders(ioc, 0);

			/* Find IM volumes
			 */
			if (ioc->facts.MsgVersion >= 0x0102)
				mpt_findImVolumes(ioc);

			/* Check, and possibly reset, the coalescing value
			 */
			mpt_read_ioc_pg_1(ioc);

			mpt_read_ioc_pg_4(ioc);
		}

		GetIoUnitPage2(ioc);
	}

	/*
	 * Call each currently registered protocol IOC reset handler
	 * with post-reset indication.
	 * NOTE: If we're doing _IOC_BRINGUP, there can be no
	 * MptResetHandlers[] registered yet.
	 */
	if (hard_reset_done) {
		r = handlers = 0;
		for (ii=MPT_MAX_PROTOCOL_DRIVERS-1; ii; ii--) {
			if ((ret == 0) && MptResetHandlers[ii]) {
				dprintk((MYIOC_s_INFO_FMT "Calling IOC post_reset handler #%d\n",
						ioc->name, ii));
				r += (*(MptResetHandlers[ii]))(ioc, MPT_IOC_POST_RESET);
				handlers++;
			}