Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

1 files changed, 156 insertions, 120 deletions

diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 6b6df86..c6be6eb 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -1430,6 +1430,98 @@ mpt_get_product_name(u16 vendor, u16 device, u8 revision, char *prod_name)
 		sprintf(prod_name, "%s", product_str);
 }
 
+/**
+ *	mpt_mapresources - map in memory mapped io
+ *	@ioc: Pointer to pointer to IOC adapter
+ *
+ **/
+static int
+mpt_mapresources(MPT_ADAPTER *ioc)
+{
+	u8		__iomem *mem;
+	int		 ii;
+	unsigned long	 mem_phys;
+	unsigned long	 port;
+	u32		 msize;
+	u32		 psize;
+	u8		 revision;
+	int		 r = -ENODEV;
+	struct pci_dev *pdev;
+
+	pdev = ioc->pcidev;
+	ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
+	if (pci_enable_device_mem(pdev)) {
+		printk(MYIOC_s_ERR_FMT "pci_enable_device_mem() "
+		    "failed\n", ioc->name);
+		return r;
+	}
+	if (pci_request_selected_regions(pdev, ioc->bars, "mpt")) {
+		printk(MYIOC_s_ERR_FMT "pci_request_selected_regions() with "
+		    "MEM failed\n", ioc->name);
+		return r;
+	}
+
+	pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
+
+	if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)
+	    && !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
+		dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
+		    ": 64 BIT PCI BUS DMA ADDRESSING SUPPORTED\n",
+		    ioc->name));
+	} else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)
+	    && !pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+		dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
+		    ": 32 BIT PCI BUS DMA ADDRESSING SUPPORTED\n",
+		    ioc->name));
+	} else {
+		printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
+		    ioc->name, pci_name(pdev));
+		pci_release_selected_regions(pdev, ioc->bars);
+		return r;
+	}
+
+	mem_phys = msize = 0;
+	port = psize = 0;
+	for (ii = 0; ii < DEVICE_COUNT_RESOURCE; ii++) {
+		if (pci_resource_flags(pdev, ii) & PCI_BASE_ADDRESS_SPACE_IO) {
+			if (psize)
+				continue;
+			/* Get I/O space! */
+			port = pci_resource_start(pdev, ii);
+			psize = pci_resource_len(pdev, ii);
+		} else {
+			if (msize)
+				continue;
+			/* Get memmap */
+			mem_phys = pci_resource_start(pdev, ii);
+			msize = pci_resource_len(pdev, ii);
+		}
+	}
+	ioc->mem_size = msize;
+
+	mem = NULL;
+	/* Get logical ptr for PciMem0 space */
+	/*mem = ioremap(mem_phys, msize);*/
+	mem = ioremap(mem_phys, msize);
+	if (mem == NULL) {
+		printk(MYIOC_s_ERR_FMT ": ERROR - Unable to map adapter"
+			" memory!\n", ioc->name);
+		return -EINVAL;
+	}
+	ioc->memmap = mem;
+	dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "mem = %p, mem_phys = %lx\n",
+	    ioc->name, mem, mem_phys));
+
+	ioc->mem_phys = mem_phys;
+	ioc->chip = (SYSIF_REGS __iomem *)mem;
+
+	/* Save Port IO values in case we need to do downloadboot */
+	ioc->pio_mem_phys = port;
+	ioc->pio_chip = (SYSIF_REGS __iomem *)port;
+
+	return 0;
+}
+
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
  *	mpt_attach - Install a PCI intelligent MPT adapter.
@@ -1452,13 +1544,6 @@ int
 mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	MPT_ADAPTER	*ioc;
-	u8		__iomem *mem;
-	u8		__iomem *pmem;
-	unsigned long	 mem_phys;
-	unsigned long	 port;
-	u32		 msize;
-	u32		 psize;
-	int		 ii;
 	u8		 cb_idx;
 	int		 r = -ENODEV;
 	u8		 revision;
@@ -1468,52 +1553,32 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	struct proc_dir_entry *dent, *ent;
 #endif
 
-	if (mpt_debug_level)
-		printk(KERN_INFO MYNAM ": mpt_debug_level=%xh\n", mpt_debug_level);
-
 	ioc = kzalloc(sizeof(MPT_ADAPTER), GFP_ATOMIC);
 	if (ioc == NULL) {
 		printk(KERN_ERR MYNAM ": ERROR - Insufficient memory to add adapter!\n");
 		return -ENOMEM;
 	}
-	ioc->debug_level = mpt_debug_level;
+
 	ioc->id = mpt_ids++;
 	sprintf(ioc->name, "ioc%d", ioc->id);
 
-	ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
-	if (pci_enable_device_mem(pdev)) {
-		printk(MYIOC_s_ERR_FMT "pci_enable_device_mem() "
-		       "failed\n", ioc->name);
-		kfree(ioc);
-		return r;
-	}
-	if (pci_request_selected_regions(pdev, ioc->bars, "mpt")) {
-		printk(MYIOC_s_ERR_FMT "pci_request_selected_regions() with "
-		       "MEM failed\n", ioc->name);
-		kfree(ioc);
-		return r;
-	}
+	/*
+	 * set initial debug level
+	 * (refer to mptdebug.h)
+	 *
+	 */
+	ioc->debug_level = mpt_debug_level;
+	if (mpt_debug_level)
+		printk(KERN_INFO "mpt_debug_level=%xh\n", mpt_debug_level);
 
 	dinitprintk(ioc, printk(MYIOC_s_INFO_FMT ": mpt_adapter_install\n", ioc->name));
 
-	if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
-		dprintk(ioc, printk(MYIOC_s_INFO_FMT
-			": 64 BIT PCI BUS DMA ADDRESSING SUPPORTED\n", ioc->name));
-	} else if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
-		printk(MYIOC_s_WARN_FMT ": 32 BIT PCI BUS DMA ADDRESSING NOT SUPPORTED\n",
-		    ioc->name);
+	ioc->pcidev = pdev;
+	if (mpt_mapresources(ioc)) {
 		kfree(ioc);
 		return r;
 	}
 
-	if (!pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
-		dprintk(ioc, printk(MYIOC_s_INFO_FMT
-			": Using 64 bit consistent mask\n", ioc->name));
-	} else {
-		dprintk(ioc, printk(MYIOC_s_INFO_FMT
-			": Not using 64 bit consistent mask\n", ioc->name));
-	}
-
 	ioc->alloc_total = sizeof(MPT_ADAPTER);
 	ioc->req_sz = MPT_DEFAULT_FRAME_SIZE;		/* avoid div by zero! */
 	ioc->reply_sz = MPT_REPLY_FRAME_SIZE;
@@ -1551,48 +1616,9 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	/* Find lookup slot. */
 	INIT_LIST_HEAD(&ioc->list);
 
-	mem_phys = msize = 0;
-	port = psize = 0;
-	for (ii=0; ii < DEVICE_COUNT_RESOURCE; ii++) {
-		if (pci_resource_flags(pdev, ii) & PCI_BASE_ADDRESS_SPACE_IO) {
-			if (psize)
-				continue;
-			/* Get I/O space! */
-			port = pci_resource_start(pdev, ii);
-			psize = pci_resource_len(pdev,ii);
-		} else {
-			if (msize)
-				continue;
-			/* Get memmap */
-			mem_phys = pci_resource_start(pdev, ii);
-			msize = pci_resource_len(pdev,ii);
-		}
-	}
-	ioc->mem_size = msize;
-
-	mem = NULL;
-	/* Get logical ptr for PciMem0 space */
-	/*mem = ioremap(mem_phys, msize);*/
-	mem = ioremap(mem_phys, msize);
-	if (mem == NULL) {
-		printk(MYIOC_s_ERR_FMT "Unable to map adapter memory!\n", ioc->name);
-		kfree(ioc);
-		return -EINVAL;
-	}
-	ioc->memmap = mem;
-	dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "mem = %p, mem_phys = %lx\n", ioc->name, mem, mem_phys));
-
 	dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "facts @ %p, pfacts[0] @ %p\n",
 	    ioc->name, &ioc->facts, &ioc->pfacts[0]));
 
-	ioc->mem_phys = mem_phys;
-	ioc->chip = (SYSIF_REGS __iomem *)mem;
-
-	/* Save Port IO values in case we need to do downloadboot */
-	ioc->pio_mem_phys = port;
-	pmem = (u8 __iomem *)port;
-	ioc->pio_chip = (SYSIF_REGS __iomem *)pmem;
-
 	pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
 	mpt_get_product_name(pdev->vendor, pdev->device, revision, ioc->prod_name);
 
@@ -1688,7 +1714,9 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 		list_del(&ioc->list);
 		if (ioc->alt_ioc)
 			ioc->alt_ioc->alt_ioc = NULL;
-		iounmap(mem);
+		iounmap(ioc->memmap);
+		if (r != -5)
+			pci_release_selected_regions(pdev, ioc->bars);
 		kfree(ioc);
 		pci_set_drvdata(pdev, NULL);
 		return r;
@@ -1784,13 +1812,10 @@ mpt_suspend(struct pci_dev *pdev, pm_message_t state)
 	u32 device_state;
 	MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
 
-	device_state=pci_choose_state(pdev, state);
-
-	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);
-
-	pci_save_state(pdev);
+	device_state = pci_choose_state(pdev, state);
+	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);
 
 	/* put ioc into READY_STATE */
 	if(SendIocReset(ioc, MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET, CAN_SLEEP)) {
@@ -1805,10 +1830,14 @@ mpt_suspend(struct pci_dev *pdev, pm_message_t state)
 	/* Clear any lingering interrupt */
 	CHIPREG_WRITE32(&ioc->chip->IntStatus, 0);
 
+	free_irq(ioc->pci_irq, ioc);
+	if (mpt_msi_enable)
+		pci_disable_msi(ioc->pcidev);
+	ioc->pci_irq = -1;
+	pci_save_state(pdev);
 	pci_disable_device(pdev);
 	pci_release_selected_regions(pdev, ioc->bars);
 	pci_set_power_state(pdev, device_state);
-
 	return 0;
 }
 
@@ -1823,48 +1852,54 @@ mpt_resume(struct pci_dev *pdev)
 	MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
 	u32 device_state = pdev->current_state;
 	int recovery_state;
+	int err;
 
-	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);
+	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_set_power_state(pdev, PCI_D0);
+	pci_enable_wake(pdev, PCI_D0, 0);
 	pci_restore_state(pdev);
-	if (ioc->facts.Flags & MPI_IOCFACTS_FLAGS_FW_DOWNLOAD_BOOT) {
-		ioc->bars = pci_select_bars(ioc->pcidev, IORESOURCE_MEM |
-			IORESOURCE_IO);
-		if (pci_enable_device(pdev))
-			return 0;
-	} else {
-		ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
-		if (pci_enable_device_mem(pdev))
-			return 0;
-	}
-	if (pci_request_selected_regions(pdev, ioc->bars, "mpt"))
-		return 0;
+	ioc->pcidev = pdev;
+	err = mpt_mapresources(ioc);
+	if (err)
+		return err;
 
-	/* enable interrupts */
-	CHIPREG_WRITE32(&ioc->chip->IntMask, MPI_HIM_DIM);
-	ioc->active = 1;
+	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));
 
-	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));
+	/*
+	 * Errata workaround for SAS pci express:
+	 * Upon returning to the D0 state, the contents of the doorbell will be
+	 * stale data, and this will incorrectly signal to the host driver that
+	 * the firmware is ready to process mpt commands.   The workaround is
+	 * to issue a diagnostic reset.
+	 */
+	if (ioc->bus_type == SAS && (pdev->device ==
+	    MPI_MANUFACTPAGE_DEVID_SAS1068E || pdev->device ==
+	    MPI_MANUFACTPAGE_DEVID_SAS1064E)) {
+		if (KickStart(ioc, 1, CAN_SLEEP) < 0) {
+			printk(MYIOC_s_WARN_FMT "pci-resume: Cannot recover\n",
+			    ioc->name);
+			goto out;
+		}
+	}
 
 	/* 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 "Sending mpt_do_ioc_recovery\n", ioc->name);
+	recovery_state = mpt_do_ioc_recovery(ioc, MPT_HOSTEVENT_IOC_BRINGUP,
+						 CAN_SLEEP);
+	if (recovery_state != 0)
+		printk(MYIOC_s_WARN_FMT "pci-resume: Cannot recover, "
+		    "error:[%x]\n", ioc->name, recovery_state);
+	else
 		printk(MYIOC_s_INFO_FMT
-			"pci-resume: success\n", ioc->name);
-	}
-
+		    "pci-resume: success\n", ioc->name);
+ out:
 	return 0;
+
 }
 #endif
 
@@ -1903,6 +1938,7 @@ mpt_signal_reset(u8 index, MPT_ADAPTER *ioc, int reset_phase)
  *		-3 if READY but PrimeIOCFifos Failed
  *		-4 if READY but IOCInit Failed
  *		-5 if failed to enable_device and/or request_selected_regions
+ *		-6 if failed to upload firmware
  */
 static int
 mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
@@ -2097,7 +2133,7 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 				} else {
 					printk(MYIOC_s_WARN_FMT
 					    "firmware upload failure!\n", ioc->name);
-					ret = -5;
+					ret = -6;
 				}
 			}
 		}