From d1b3525b4126d7acad0493b62642b80b71442661 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Sun, 15 Feb 2009 23:24:24 +0400 Subject: libata-sff: fix 32-bit PIO ATAPI regression Commit 871af1210f13966ab911ed2166e4ab2ce775b99d (libata: Add 32bit PIO support) has caused all kinds of errors on the ATAPI devices, so it has been empirically proven that one shouldn't try to read/write an extra data word when a device is not expecting it already. "Don't do it then"; however, still use a chance to do 32-bit read/write one last time when there are exactly 3 trailing bytes. Oh, and stop pointlessly swapping the bytes to and fro on big-endian machines by using io*_rep() accessors which shouldn't byte-swap. This patch should fix the kernel.org bug #12609. Signed-off-by: Sergei Shtylyov Signed-off-by: Jeff Garzik --- drivers/ata/libata-sff.c | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) (limited to 'drivers/ata') diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 0b299b0f8172..714cb046b594 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -773,18 +773,32 @@ unsigned int ata_sff_data_xfer32(struct ata_device *dev, unsigned char *buf, else iowrite32_rep(data_addr, buf, words); + /* Transfer trailing bytes, if any */ if (unlikely(slop)) { - __le32 pad; + unsigned char pad[4]; + + /* Point buf to the tail of buffer */ + buf += buflen - slop; + + /* + * Use io*_rep() accessors here as well to avoid pointlessly + * swapping bytes to and fro on the big endian machines... + */ if (rw == READ) { - pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr)); - memcpy(buf + buflen - slop, &pad, slop); + if (slop < 3) + ioread16_rep(data_addr, pad, 1); + else + ioread32_rep(data_addr, pad, 1); + memcpy(buf, pad, slop); } else { - memcpy(&pad, buf + buflen - slop, slop); - iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr); + memcpy(pad, buf, slop); + if (slop < 3) + iowrite16_rep(data_addr, pad, 1); + else + iowrite32_rep(data_addr, pad, 1); } - words++; } - return words << 2; + return (buflen + 1) & ~1; } EXPORT_SYMBOL_GPL(ata_sff_data_xfer32); -- cgit v1.2.3 From 7dac745b8e367c99175b8f0d014d996f0e5ed9e5 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 12 Feb 2009 10:34:32 +0900 Subject: sata_nv: give up hardreset on nf2 Kernel bz#12176 reports that nf2 hardreset simply doesn't work. Give up. Argh... Signed-off-by: Tejun Heo Cc: Robert Hancock Reported-by: Saro Signed-off-by: Jeff Garzik --- drivers/ata/sata_nv.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/ata') diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 444af0415ca1..55a8eed3f3a3 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -421,19 +421,21 @@ static struct ata_port_operations nv_generic_ops = { .hardreset = ATA_OP_NULL, }; -/* OSDL bz3352 reports that nf2/3 controllers can't determine device - * signature reliably. Also, the following thread reports detection - * failure on cold boot with the standard debouncing timing. +/* nf2 is ripe with hardreset related problems. + * + * kernel bz#3352 reports nf2/3 controllers can't determine device + * signature reliably. The following thread reports detection failure + * on cold boot with the standard debouncing timing. * * http://thread.gmane.org/gmane.linux.ide/34098 * - * Debounce with hotplug timing and request follow-up SRST. + * And bz#12176 reports that hardreset simply doesn't work on nf2. + * Give up on it and just don't do hardreset. */ static struct ata_port_operations nv_nf2_ops = { - .inherits = &nv_common_ops, + .inherits = &nv_generic_ops, .freeze = nv_nf2_freeze, .thaw = nv_nf2_thaw, - .hardreset = nv_noclassify_hardreset, }; /* For initial probing after boot and hot plugging, hardreset mostly -- cgit v1.2.3 From 5955c7a2cfb6a35429adea5dc480002b15ca8cfc Mon Sep 17 00:00:00 2001 From: Zlatko Calusic Date: Wed, 18 Feb 2009 01:33:34 +0100 Subject: Add support for VT6415 PCIE PATA IDE Host Controller Signed-off-by: Zlatko Calusic Signed-off-by: Linus Torvalds --- drivers/ata/pata_via.c | 4 +++- include/linux/pci_ids.h | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/ata') diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c index 79a6c9a0b721..ba556d3e6963 100644 --- a/drivers/ata/pata_via.c +++ b/drivers/ata/pata_via.c @@ -110,7 +110,8 @@ static const struct via_isa_bridge { { "vt8237s", PCI_DEVICE_ID_VIA_8237S, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "cx700", PCI_DEVICE_ID_VIA_CX700, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_SATA_PATA }, - { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES}, + { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES }, + { "vt6415", PCI_DEVICE_ID_VIA_6415, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES }, { "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, @@ -593,6 +594,7 @@ static int via_reinit_one(struct pci_dev *pdev) #endif static const struct pci_device_id via[] = { + { PCI_VDEVICE(VIA, 0x0415), }, { PCI_VDEVICE(VIA, 0x0571), }, { PCI_VDEVICE(VIA, 0x0581), }, { PCI_VDEVICE(VIA, 0x1571), }, diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 52a9fe08451c..918391b4b109 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1312,6 +1312,7 @@ #define PCI_DEVICE_ID_VIA_VT3351 0x0351 #define PCI_DEVICE_ID_VIA_VT3364 0x0364 #define PCI_DEVICE_ID_VIA_8371_0 0x0391 +#define PCI_DEVICE_ID_VIA_6415 0x0415 #define PCI_DEVICE_ID_VIA_8501_0 0x0501 #define PCI_DEVICE_ID_VIA_82C561 0x0561 #define PCI_DEVICE_ID_VIA_82C586_1 0x0571 -- cgit v1.2.3 From 7ba07d16bd62f931efec1fc8e63bf1aeebfe42a9 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Wed, 11 Feb 2009 13:08:43 -0800 Subject: pata_it821x: resume from hibernation fails with RAID volume Hibernation didn't work for me since I started to use IT8212 controller. I did some debugging (booting with no_console_suspend init=/bin/sh). Found that resume fails (2.6.28) with "serial number mismatch 'some garbage' != 'some other garbage'" and "revalidation failed" messages. That's because the controller firmware fills different serial number in the IDENTIFY every boot. The patch below fixes the resume simply clearing the serial number. The proper fix would be probably to fill in the serial number of the RAID volume instead. I assume that there must be something like that stored on the drives but I don't know where. Fix resume on pata_it821x RAID volume by clearing the serial number in IDENTIFY data, which is otherwise different on each boot. Signed-off-by: Ondrej Zary Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/ata/pata_it821x.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/ata') diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c index f1bb2f9fecbf..b05b86a912c5 100644 --- a/drivers/ata/pata_it821x.c +++ b/drivers/ata/pata_it821x.c @@ -557,6 +557,9 @@ static unsigned int it821x_read_id(struct ata_device *adev, id[83] |= 0x4400; /* Word 83 is valid and LBA48 */ id[86] |= 0x0400; /* LBA48 on */ id[ATA_ID_MAJOR_VER] |= 0x1F; + /* Clear the serial number because it's different each boot + which breaks validation on resume */ + memset(&id[ATA_ID_SERNO], 0x20, ATA_ID_SERNO_LEN); } return err_mask; } -- cgit v1.2.3 From 6be96ac15e4d913e1f48299db083ada5321803b2 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Thu, 19 Feb 2009 10:38:04 -0500 Subject: sata_mv: fix SoC interrupt breakage For some reason, sata_mv doesn't clear interrupt status during init when it's running on an SoC host adapter. If the bootloader has touched the SATA controller before starting Linux, Linux can end up enabling the SATA interrupt with events pending, which will cause the interrupt to be marked as spurious and then be disabled, which then breaks all further accesses to the controller. This patch makes the SoC path clear interrupt status on init like in the non-SoC case. Signed-off-by: Lennert Buytenhek Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) (limited to 'drivers/ata') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 4ae1a4138b47..7007edd2d451 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -3114,19 +3114,17 @@ static int mv_init_host(struct ata_host *host, unsigned int board_idx) writelfl(0, hc_mmio + HC_IRQ_CAUSE_OFS); } - if (!IS_SOC(hpriv)) { - /* Clear any currently outstanding host interrupt conditions */ - writelfl(0, mmio + hpriv->irq_cause_ofs); + /* Clear any currently outstanding host interrupt conditions */ + writelfl(0, mmio + hpriv->irq_cause_ofs); - /* and unmask interrupt generation for host regs */ - writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs); + /* and unmask interrupt generation for host regs */ + writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs); - /* - * enable only global host interrupts for now. - * The per-port interrupts get done later as ports are set up. - */ - mv_set_main_irq_mask(host, 0, PCI_ERR); - } + /* + * enable only global host interrupts for now. + * The per-port interrupts get done later as ports are set up. + */ + mv_set_main_irq_mask(host, 0, PCI_ERR); done: return rc; } -- cgit v1.2.3 From c48052cc36e02fff6a9bb3cf83c4206b9127611f Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 11 Feb 2009 13:08:41 -0800 Subject: [libata] pata_amd: program FIFO With 32bit PIO we can use the posted write buffers, but only for 32bit I/O cycles. This means we must disable the FIFO for ATAPI where a final 16bit cycle may occur. Rework the FIFO logic so that we disable the FIFO then selectively re-enable it when we set the timings on AMD devices. Also fix a case where we scribbled on PCI config 0x41 of Nvidia chips when we shouldn't. Signed-off-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/ata/pata_amd.c | 76 +++++++++++++++++++++++++++++++++++++++----------- 1 file changed, 59 insertions(+), 17 deletions(-) (limited to 'drivers/ata') diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c index 63719ab9ea44..115b1cd6dcf5 100644 --- a/drivers/ata/pata_amd.c +++ b/drivers/ata/pata_amd.c @@ -24,7 +24,7 @@ #include #define DRV_NAME "pata_amd" -#define DRV_VERSION "0.3.11" +#define DRV_VERSION "0.4.1" /** * timing_setup - shared timing computation and load @@ -145,6 +145,13 @@ static int amd_pre_reset(struct ata_link *link, unsigned long deadline) return ata_sff_prereset(link, deadline); } +/** + * amd_cable_detect - report cable type + * @ap: port + * + * AMD controller/BIOS setups record the cable type in word 0x42 + */ + static int amd_cable_detect(struct ata_port *ap) { static const u32 bitmask[2] = {0x03, 0x0C}; @@ -157,6 +164,40 @@ static int amd_cable_detect(struct ata_port *ap) return ATA_CBL_PATA40; } +/** + * amd_fifo_setup - set the PIO FIFO for ATA/ATAPI + * @ap: ATA interface + * @adev: ATA device + * + * Set the PCI fifo for this device according to the devices present + * on the bus at this point in time. We need to turn the post write buffer + * off for ATAPI devices as we may need to issue a word sized write to the + * device as the final I/O + */ + +static void amd_fifo_setup(struct ata_port *ap) +{ + struct ata_device *adev; + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + static const u8 fifobit[2] = { 0xC0, 0x30}; + u8 fifo = fifobit[ap->port_no]; + u8 r; + + + ata_for_each_dev(adev, &ap->link, ENABLED) { + if (adev->class == ATA_DEV_ATAPI) + fifo = 0; + } + if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7411) /* FIFO is broken */ + fifo = 0; + + /* On the later chips the read prefetch bits become no-op bits */ + pci_read_config_byte(pdev, 0x41, &r); + r &= ~fifobit[ap->port_no]; + r |= fifo; + pci_write_config_byte(pdev, 0x41, r); +} + /** * amd33_set_piomode - set initial PIO mode data * @ap: ATA interface @@ -167,21 +208,25 @@ static int amd_cable_detect(struct ata_port *ap) static void amd33_set_piomode(struct ata_port *ap, struct ata_device *adev) { + amd_fifo_setup(ap); timing_setup(ap, adev, 0x40, adev->pio_mode, 1); } static void amd66_set_piomode(struct ata_port *ap, struct ata_device *adev) { + amd_fifo_setup(ap); timing_setup(ap, adev, 0x40, adev->pio_mode, 2); } static void amd100_set_piomode(struct ata_port *ap, struct ata_device *adev) { + amd_fifo_setup(ap); timing_setup(ap, adev, 0x40, adev->pio_mode, 3); } static void amd133_set_piomode(struct ata_port *ap, struct ata_device *adev) { + amd_fifo_setup(ap); timing_setup(ap, adev, 0x40, adev->pio_mode, 4); } @@ -397,6 +442,16 @@ static struct ata_port_operations nv133_port_ops = { .set_dmamode = nv133_set_dmamode, }; +static void amd_clear_fifo(struct pci_dev *pdev) +{ + u8 fifo; + /* Disable the FIFO, the FIFO logic will re-enable it as + appropriate */ + pci_read_config_byte(pdev, 0x41, &fifo); + fifo &= 0x0F; + pci_write_config_byte(pdev, 0x41, fifo); +} + static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id) { static const struct ata_port_info info[10] = { @@ -503,14 +558,8 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id) if (type < 3) ata_pci_bmdma_clear_simplex(pdev); - - /* Check for AMD7411 */ - if (type == 3) - /* FIFO is broken */ - pci_write_config_byte(pdev, 0x41, fifo & 0x0F); - else - pci_write_config_byte(pdev, 0x41, fifo | 0xF0); - + if (pdev->vendor == PCI_VENDOR_ID_AMD) + amd_clear_fifo(pdev); /* Cable detection on Nvidia chips doesn't work too well, * cache BIOS programmed UDMA mode. */ @@ -536,18 +585,11 @@ static int amd_reinit_one(struct pci_dev *pdev) return rc; if (pdev->vendor == PCI_VENDOR_ID_AMD) { - u8 fifo; - pci_read_config_byte(pdev, 0x41, &fifo); - if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7411) - /* FIFO is broken */ - pci_write_config_byte(pdev, 0x41, fifo & 0x0F); - else - pci_write_config_byte(pdev, 0x41, fifo | 0xF0); + amd_clear_fifo(pdev); if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7409 || pdev->device == PCI_DEVICE_ID_AMD_COBRA_7401) ata_pci_bmdma_clear_simplex(pdev); } - ata_host_resume(host); return 0; } -- cgit v1.2.3 From c55af1f5abf606118b32e3ce9c3b1bbce5236e7e Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 11 Feb 2009 13:08:42 -0800 Subject: [libata] pata_legacy: for VLB 32bit PIO don't try tricks with slop These devices are generally used with ATA anyway and it seems that some ATAPI will need us to issue the right number of words. Therefore as we can't switch mid burst on VLB devices we should only use 32bit I/O for suitable block sizes. Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/ata/pata_legacy.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers/ata') diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c index 6c1d778b63a9..e3bc1b436284 100644 --- a/drivers/ata/pata_legacy.c +++ b/drivers/ata/pata_legacy.c @@ -283,9 +283,10 @@ static void pdc20230_set_piomode(struct ata_port *ap, struct ata_device *adev) static unsigned int pdc_data_xfer_vlb(struct ata_device *dev, unsigned char *buf, unsigned int buflen, int rw) { - if (ata_id_has_dword_io(dev->id)) { + int slop = buflen & 3; + /* 32bit I/O capable *and* we need to write a whole number of dwords */ + if (ata_id_has_dword_io(dev->id) && (slop == 0 || slop == 3)) { struct ata_port *ap = dev->link->ap; - int slop = buflen & 3; unsigned long flags; local_irq_save(flags); @@ -735,7 +736,7 @@ static unsigned int vlb32_data_xfer(struct ata_device *adev, unsigned char *buf, struct ata_port *ap = adev->link->ap; int slop = buflen & 3; - if (ata_id_has_dword_io(adev->id)) { + if (ata_id_has_dword_io(adev->id) && (slop == 0 || slop == 3)) { if (rw == WRITE) iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2); else -- cgit v1.2.3 From 5825627c9463581fd9e70f8285685889ae5bb9bb Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Fri, 27 Feb 2009 17:35:43 +0900 Subject: libata: fix dma_unmap_sg misuse libata passes the returned value of dma_map_sg() to dma_unmap_sg(),which is the misuse of dma_unmap_sg(). DMA-mapping.txt says: To unmap a scatterlist, just call: pci_unmap_sg(pdev, sglist, nents, direction); Again, make sure DMA activity has already finished. PLEASE NOTE: The 'nents' argument to the pci_unmap_sg call must be the _same_ one you passed into the pci_map_sg call, it should _NOT_ be the 'count' value _returned_ from the pci_map_sg call. Signed-off-by: FUJITA Tomonori Acked-by: Bartlomiej Zolnierkiewicz Acked-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/libata-core.c | 4 ++-- include/linux/libata.h | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/ata') diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 9fbf0595f3d4..5e324cea3019 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4612,7 +4612,7 @@ void ata_sg_clean(struct ata_queued_cmd *qc) VPRINTK("unmapping %u sg elements\n", qc->n_elem); if (qc->n_elem) - dma_unmap_sg(ap->dev, sg, qc->n_elem, dir); + dma_unmap_sg(ap->dev, sg, qc->orig_n_elem, dir); qc->flags &= ~ATA_QCFLAG_DMAMAP; qc->sg = NULL; @@ -4727,7 +4727,7 @@ static int ata_sg_setup(struct ata_queued_cmd *qc) return -1; DPRINTK("%d sg elements mapped\n", n_elem); - + qc->orig_n_elem = qc->n_elem; qc->n_elem = n_elem; qc->flags |= ATA_QCFLAG_DMAMAP; diff --git a/include/linux/libata.h b/include/linux/libata.h index dd818c7decd7..fbf064e13ad5 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -530,6 +530,7 @@ struct ata_queued_cmd { unsigned long flags; /* ATA_QCFLAG_xxx */ unsigned int tag; unsigned int n_elem; + unsigned int orig_n_elem; int dma_dir; -- cgit v1.2.3 From b53570814692db79c3525523b6e9ec9874416c04 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 2 Mar 2009 18:55:16 +0900 Subject: libata: don't use on-stack sense buffer sense_buffer is used as DMA target and shouldn't be allocated on stack. Use ap->sector_buf instead. This problem is spotted by Chuck Ebbert. Signed-off-by: Tejun Heo Reported-by: Chuck Ebbert Signed-off-by: Jeff Garzik --- drivers/ata/libata-eh.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/ata') diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index ce2ef0475339..009ccc7c9865 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2901,7 +2901,7 @@ static int atapi_eh_clear_ua(struct ata_device *dev) int i; for (i = 0; i < ATA_EH_UA_TRIES; i++) { - u8 sense_buffer[SCSI_SENSE_BUFFERSIZE]; + u8 *sense_buffer = dev->link->ap->sector_buf; u8 sense_key = 0; unsigned int err_mask; -- cgit v1.2.3 From 7adbe46b9289794f8fe629cd78c876169741177f Mon Sep 17 00:00:00 2001 From: peerchen Date: Fri, 27 Feb 2009 16:58:41 +0800 Subject: ahci: Add the Device IDs for MCP89 and remove IDs of MCP7B to/from ahci.c Added the Device IDs for MCP89 AHCI controller. Removed the IDs of MCP7B because this chipset had been cancelled. Signed-off-by: Peer Chen Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'drivers/ata') diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index a603bbf9b1b7..66e012cd3271 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -582,18 +582,18 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci }, /* MCP79 */ - { PCI_VDEVICE(NVIDIA, 0x0bc8), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bc9), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bca), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bcb), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bcc), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bcd), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bce), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bcf), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bc4), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bc5), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bc6), board_ahci }, /* MCP7B */ - { PCI_VDEVICE(NVIDIA, 0x0bc7), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci }, /* MCP89 */ + { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci }, /* MCP89 */ /* SiS */ { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */ -- cgit v1.2.3 From 55f784c826af2506e417bcc484d7e0e4d27f1977 Mon Sep 17 00:00:00 2001 From: Brandon Ehle Date: Sun, 1 Mar 2009 00:02:49 -0800 Subject: sata_nv: fix module parameter description Update MODULE_PARM_DESC for ADMA to reflect the fact that the option is disabled by default. Signed-off-by: Brandon Ehle Signed-off-by: Jeff Garzik --- drivers/ata/sata_nv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/ata') diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 55a8eed3f3a3..f65b53785a8f 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -2523,7 +2523,7 @@ static void __exit nv_exit(void) module_init(nv_init); module_exit(nv_exit); module_param_named(adma, adma_enabled, bool, 0444); -MODULE_PARM_DESC(adma, "Enable use of ADMA (Default: true)"); +MODULE_PARM_DESC(adma, "Enable use of ADMA (Default: false)"); module_param_named(swncq, swncq_enabled, bool, 0444); MODULE_PARM_DESC(swncq, "Enable use of SWNCQ (Default: true)"); -- cgit v1.2.3 From d6515e6ff4ad3db4bd5ef2dd4e1026a7aca2482e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 4 Mar 2009 15:59:30 +0900 Subject: libata: make sure port is thawed when skipping resets When SCR access is available and the link is offline, softreset is skipped as it only wastes time and some controllers don't respond very well. However, the skip path forgot to thaw the port, which not only blocks further event notification from the port but also causes repeated EH invocations on the same event on drivers which rely on ->thaw() to clear events if the IRQ is shared with another device or port. This problem has always been there but is uncovered by recent sata_nv nf2/3 change which dropped hardreset support while maintaining SCR access. nf2/3 doesn't clear hotplug event mask from the interrupt handler but relies on ->thaw() to clear them. When the hardreset was there, the reset action was never skipped and the port was always thawed but, with the hardreset gone, ->prereset() determines that there's no need for softreset and both ->softreset() and ->thaw() are skipped. This leads to stuck hotplug event in the IRQ status register triggering hotplug event whenever IRQ is delieverd on the same IRQ. As the controller shares the same IRQ for both ports, this happens on every IO if one port is occpupied and the other isn't. This patch fixes the problem by making sure that the port is thawed on reset-skip path. bko#11615 reports this problem. Signed-off-by: Tejun Heo Cc: Robert Hancock Reported-by: Dan Andresan Reported-by: Arne Woerner Reported-by: Stefan Lippers-Hollmann Signed-off-by: Jeff Garzik --- drivers/ata/libata-eh.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/ata') diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 009ccc7c9865..ea890911d4fa 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2423,11 +2423,14 @@ int ata_eh_reset(struct ata_link *link, int classify, } /* prereset() might have cleared ATA_EH_RESET. If so, - * bang classes and return. + * bang classes, thaw and return. */ if (reset && !(ehc->i.action & ATA_EH_RESET)) { ata_for_each_dev(dev, link, ALL) classes[dev->devno] = ATA_DEV_NONE; + if ((ap->pflags & ATA_PFLAG_FROZEN) && + ata_is_host_link(link)) + ata_eh_thaw_port(ap); rc = 0; goto out; } -- cgit v1.2.3 From 968e594afdbc40b4270f9d4032ae8350475749d6 Mon Sep 17 00:00:00 2001 From: Robert Hancock Date: Mon, 16 Feb 2009 20:15:08 -0600 Subject: libata: Don't trust current capacity values in identify words 57-58 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hanno Böck reported a problem where an old Conner CP30254 240MB hard drive was reported as 1.1TB in capacity by libata: http://lkml.org/lkml/2009/2/13/134 This was caused by libata trusting the drive's reported current capacity in sectors in identify words 57 and 58 if the drive does not support LBA and the current CHS translation values appear valid. Unfortunately it seems older ATA specs were vague about what this field should contain and a number of drives used values with wrong byte order or that were totally bogus. There's no unique information that it conveys and so we can just calculate the number of sectors from the reported current CHS values. While we're at it, clean up this function to use named constants for the identify word values. Signed-off-by: Robert Hancock Signed-off-by: Jeff Garzik --- drivers/ata/libata-core.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers/ata') diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 5e324cea3019..060bcd601f57 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1322,14 +1322,16 @@ static u64 ata_id_n_sectors(const u16 *id) { if (ata_id_has_lba(id)) { if (ata_id_has_lba48(id)) - return ata_id_u64(id, 100); + return ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); else - return ata_id_u32(id, 60); + return ata_id_u32(id, ATA_ID_LBA_CAPACITY); } else { if (ata_id_current_chs_valid(id)) - return ata_id_u32(id, 57); + return id[ATA_ID_CUR_CYLS] * id[ATA_ID_CUR_HEADS] * + id[ATA_ID_CUR_SECTORS]; else - return id[1] * id[3] * id[6]; + return id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * + id[ATA_ID_SECTORS]; } } -- cgit v1.2.3 From 9d51af7bd2f1d730cb6eeeb9ff837e3441ad4e07 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Tue, 10 Mar 2009 16:28:51 -0400 Subject: sata_mv: fix MSI irq race condition Fix a (rare) race condition in mv_interrupt() when using MSI. The value of hpriv->main_irq_mask_addr can change on on the fly, and without this patch we could end up writing back a stale copy to the hardware. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/ata') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 7007edd2d451..74b1080d116d 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -2218,12 +2218,13 @@ static irqreturn_t mv_interrupt(int irq, void *dev_instance) else handled = mv_host_intr(host, pending_irqs); } - spin_unlock(&host->lock); /* for MSI: unmask; interrupt cause bits will retrigger now */ if (using_msi) writel(hpriv->main_irq_mask, hpriv->main_irq_mask_addr); + spin_unlock(&host->lock); + return IRQ_RETVAL(handled); } -- cgit v1.2.3 From e3e4385f6181f434c0d786998ad1d0eef4e21c9b Mon Sep 17 00:00:00 2001 From: Stuart MENEFY Date: Tue, 10 Mar 2009 11:38:13 +0000 Subject: libata: Keep shadow last_ctl up to date during resets libata keeps a shadow copy of the ATA CTL register (which is write only), and only writes to the hardware when the required value doesn't match the shadow. However this copy wasn't being maintained when performing reset functions. This could cause problems for the first operation after a reset when the correct value might not be written to the CTL register. This problem was observed when hotplugging a drive: the identify command was being issued with interrupts enabled, when they should have been disabled. Signed-off-by: Stuart Menefy Signed-off-by: Jeff Garzik --- drivers/ata/libata-sff.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/ata') diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 714cb046b594..f93dc029dfde 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -2066,6 +2066,7 @@ static int ata_bus_softreset(struct ata_port *ap, unsigned int devmask, iowrite8(ap->ctl | ATA_SRST, ioaddr->ctl_addr); udelay(20); /* FIXME: flush */ iowrite8(ap->ctl, ioaddr->ctl_addr); + ap->last_ctl = ap->ctl; /* wait the port to become ready */ return ata_sff_wait_after_reset(&ap->link, devmask, deadline); @@ -2190,8 +2191,10 @@ void ata_sff_postreset(struct ata_link *link, unsigned int *classes) } /* set up device control */ - if (ap->ioaddr.ctl_addr) + if (ap->ioaddr.ctl_addr) { iowrite8(ap->ctl, ap->ioaddr.ctl_addr); + ap->last_ctl = ap->ctl; + } } EXPORT_SYMBOL_GPL(ata_sff_postreset); @@ -2534,6 +2537,7 @@ void ata_bus_reset(struct ata_port *ap) if (ap->flags & (ATA_FLAG_SATA_RESET | ATA_FLAG_SRST)) { /* set up device control for ATA_FLAG_SATA_RESET */ iowrite8(ap->ctl, ioaddr->ctl_addr); + ap->last_ctl = ap->ctl; } DPRINTK("EXIT\n"); -- cgit v1.2.3 From e9c1670c2a14ef9cc20d86b24b829f3947aad34e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 3 Mar 2009 13:52:16 +0900 Subject: ata_piix: add workaround for Samsung DB-P70 Samsung DB-P70 somehow botched the first ICH9 SATA port. The board doesn't expose the first port but somehow SStatus reports link online while failing SRST protocol leading to repeated probe failures and thus long boot delay. Because the BIOS doesn't carry any identifying DMI information, the port can't be blacklisted safely. Fortunately, the controller does have subsystem vendor and ID set. It's unclear whether the subsystem IDs are used only for the board but it can be safely worked around by disabling SIDPR access and just using SRST works around the problem. Even when the workaround is triggered on an unaffected board the only side effect will be missing SCR access. Signed-off-by: Tejun Heo Reported-by: Joseph Jang Reported-by: Jonghyon Sohn Signed-off-by: Jeff Garzik --- drivers/ata/ata_piix.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) (limited to 'drivers/ata') diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 54961c0b2c73..ef8b30d577bd 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -1289,6 +1289,39 @@ static const int *__devinit piix_init_sata_map(struct pci_dev *pdev, return map; } +static bool piix_no_sidpr(struct ata_host *host) +{ + struct pci_dev *pdev = to_pci_dev(host->dev); + + /* + * Samsung DB-P70 only has three ATA ports exposed and + * curiously the unconnected first port reports link online + * while not responding to SRST protocol causing excessive + * detection delay. + * + * Unfortunately, the system doesn't carry enough DMI + * information to identify the machine but does have subsystem + * vendor and device set. As it's unclear whether the + * subsystem vendor/device is used only for this specific + * board, the port can't be disabled solely with the + * information; however, turning off SIDPR access works around + * the problem. Turn it off. + * + * This problem is reported in bnc#441240. + * + * https://bugzilla.novell.com/show_bug.cgi?id=441420 + */ + if (pdev->vendor == PCI_VENDOR_ID_INTEL && pdev->device == 0x2920 && + pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG && + pdev->subsystem_device == 0xb049) { + dev_printk(KERN_WARNING, host->dev, + "Samsung DB-P70 detected, disabling SIDPR\n"); + return true; + } + + return false; +} + static int __devinit piix_init_sidpr(struct ata_host *host) { struct pci_dev *pdev = to_pci_dev(host->dev); @@ -1302,6 +1335,10 @@ static int __devinit piix_init_sidpr(struct ata_host *host) if (hpriv->map[i] == IDE) return 0; + /* is it blacklisted? */ + if (piix_no_sidpr(host)) + return 0; + if (!(host->ports[0]->flags & PIIX_FLAG_SIDPR)) return 0; -- cgit v1.2.3