mptbase.c

优龙2410linux2.6.8内核源代码

		pci_set_master(pdev);			/* ?? */
		pci_set_drvdata(pdev, ioc);

#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);

		Q_DEL_ITEM(ioc);
		list_del(&ioc->list);
		free_irq(ioc->pci_irq, ioc);
		iounmap(mem);
		kfree(ioc);
		pci_set_drvdata(pdev, NULL);
		return r;
	}

	/* call per device driver probe entry point */
	for(ii=0; ii<MPT_MAX_PROTOCOL_DRIVERS; ii++) {
		if(MptDeviceDriverHandlers[ii] &&
		  MptDeviceDriverHandlers[ii]->probe) {
			MptDeviceDriverHandlers[ii]->probe(pdev,id);
		}
	}

	/*
	 *  Create "/proc/mpt/iocN" subdirectory entry for each MPT adapter.
	 */
	dent = proc_mkdir(ioc->name, mpt_proc_root_dir);
	if (dent) {
		ent = create_proc_entry("info", S_IFREG|S_IRUGO, dent);
		if (ent) {
			ent->read_proc = procmpt_iocinfo_read;
			ent->data = ioc;
		}
		ent = create_proc_entry("summary", S_IFREG|S_IRUGO, dent);
		if (ent) {
			ent->read_proc = procmpt_summary_read;
			ent->data = ioc;
		}
	}

	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptbase_remove - Remove a PCI intelligent MPT adapter.
 *	@pdev: Pointer to pci_dev structure
 *
 */

static void __devexit
mptbase_remove(struct pci_dev *pdev)
{
	MPT_ADAPTER 	*ioc = pci_get_drvdata(pdev);
	char pname[32];
	int ii;

	sprintf(pname, MPT_PROCFS_MPTBASEDIR "/%s/summary", ioc->name);
	remove_proc_entry(pname, NULL);
	sprintf(pname, MPT_PROCFS_MPTBASEDIR "/%s/info", ioc->name);
	remove_proc_entry(pname, NULL);
	sprintf(pname, MPT_PROCFS_MPTBASEDIR "/%s", ioc->name);
	remove_proc_entry(pname, NULL);
	
	/* call per device driver remove entry point */
	for(ii=0; ii<MPT_MAX_PROTOCOL_DRIVERS; ii++) {
		if(MptDeviceDriverHandlers[ii] &&
		  MptDeviceDriverHandlers[ii]->remove) {
			MptDeviceDriverHandlers[ii]->remove(pdev);
		}
	}
	
	/* Disable interrupts! */
	CHIPREG_WRITE32(&ioc->chip->IntMask, 0xFFFFFFFF);

	ioc->active = 0;
	synchronize_irq(pdev->irq);

	/* Clear any lingering interrupt */
	CHIPREG_WRITE32(&ioc->chip->IntStatus, 0);

	CHIPREG_READ32(&ioc->chip->IntStatus);

	mpt_adapter_dispose(ioc);

	pci_set_drvdata(pdev, NULL);
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptbase_shutdown -
 *
 */
static void
mptbase_shutdown(struct device * dev)
{
	int ii;

	/* call per device driver shutdown entry point */
	for(ii=0; ii<MPT_MAX_PROTOCOL_DRIVERS; ii++) {
		if(MptDeviceDriverHandlers[ii] &&
		  MptDeviceDriverHandlers[ii]->shutdown) {
			MptDeviceDriverHandlers[ii]->shutdown(dev);
		}
	}

}


/**************************************************************************
 * Power Management
 */
#ifdef CONFIG_PM
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptbase_suspend - Fusion MPT base driver suspend routine.
 *
 *
 */
static int
mptbase_suspend(struct pci_dev *pdev, u32 state)
{
	u32 device_state;
	MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
	int ii;

	switch(state)
	{
		case 1: /* S1 */
			device_state=1; /* D1 */;
			break;
		case 3: /* S3 */
		case 4: /* S4 */
			device_state=3; /* D3 */;
			break;
		default:
			return -EAGAIN /*FIXME*/;
			break;
	}

	printk(MYIOC_s_INFO_FMT
	"pci-suspend: pdev=0x%p, slot=%s, Entering operating state [D%d]\n",
		ioc->name, pdev, pci_name(pdev), device_state);

	/* call per device driver suspend entry point */
	for(ii=0; ii<MPT_MAX_PROTOCOL_DRIVERS; ii++) {
		if(MptDeviceDriverHandlers[ii] &&
		  MptDeviceDriverHandlers[ii]->suspend) {
			MptDeviceDriverHandlers[ii]->suspend(pdev, state);
		}
	}

	pci_save_state(pdev, ioc->PciState);

	/* put ioc into READY_STATE */
	if(SendIocReset(ioc, MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET, CAN_SLEEP)) {
		printk(MYIOC_s_ERR_FMT
		"pci-suspend:  IOC msg unit reset failed!\n", ioc->name);
	}

	/* disable interrupts */
	CHIPREG_WRITE32(&ioc->chip->IntMask, 0xFFFFFFFF);
	ioc->active = 0;

	/* Clear any lingering interrupt */
	CHIPREG_WRITE32(&ioc->chip->IntStatus, 0);

	pci_disable_device(pdev);
	pci_set_power_state(pdev, device_state);

	return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptbase_resume - Fusion MPT base driver resume routine.
 *
 *
 */
static int
mptbase_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",
		ioc->name, pdev, pci_name(pdev), device_state);

	pci_set_power_state(pdev, 0);
	pci_restore_state(pdev, ioc->PciState);
	pci_enable_device(pdev);

	/* enable interrupts */
	CHIPREG_WRITE32(&ioc->chip->IntMask, ~(MPI_HIM_RIM));
	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,
		(mpt_GetIocState(ioc, 1) >> MPI_IOC_STATE_SHIFT),
		CHIPREG_READ32(&ioc->chip->Doorbell));

	/* bring ioc to operational state */
	if ((recovery_state = mpt_do_ioc_recovery(ioc,
	    MPT_HOSTEVENT_IOC_RECOVER, CAN_SLEEP)) != 0) {
		printk(MYIOC_s_INFO_FMT
			"pci-resume: Cannot recover, error:[%x]\n",
			ioc->name, recovery_state);
	} else {
		printk(MYIOC_s_INFO_FMT
			"pci-resume: success\n", ioc->name);
	}

	/* call per device driver resume entry point */
	for(ii=0; ii<MPT_MAX_PROTOCOL_DRIVERS; ii++) {
		if(MptDeviceDriverHandlers[ii] &&
		  MptDeviceDriverHandlers[ii]->resume) {
			MptDeviceDriverHandlers[ii]->resume(pdev);
		}
	}

	return 0;
}
#endif

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	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 */