From 5b66c829bf5c65663b2f68ee6b42f6e834cd39cd Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 3 Sep 2008 14:48:34 +0100 Subject: [PATCH 1/7] ahci, pata_marvell: play nicely together I've been chasing Jeff about this for months. Jeff added the Marvell device identifiers to the ahci driver without making the AHCI driver handle the PATA port. This means a lot of users can't use current kernels and in most distro cases can't even install. This has been going on since March 2008 for the 6121 Marvell, and late 2007 for the 6145!!! This was all pointed out at the time and repeatedly ignored. Bugs assigned to Jeff about this are ignored also. To quote Jeff in email > "Just switch the order of 'ahci' and 'pata_marvell' in > /etc/modprobe.conf, then use Fedora's tools regenerate the initrd. > See? It's not rocket science, and the current configuration can be > easily made to work for Fedora users." (Which isn't trivial, isn't end user, shouldn't be needed, and as it usually breaks at install time is in fact impossible) To quote Jeff in August 2007 > " mv-ahci-pata > Marvell 6121/6141 PATA support. Needs fixing in the 'PATA controller > command' area before it is usable, and can go upstream." Only he add the ids anyway later and caused regressions, adding a further id in March causing more regresions. The actual fix for the moment is very simple. If the user has included the pata_marvell driver let it drive the ports. If they've only selected for SATA support give them the AHCI driver which will run the port a fraction faster. Allow the user to control this decision via ahci.marvell_enable as a module parameter so that distributions can ship 'it works' defaults and smarter users (or config tools) can then flip it over it desired. Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik --- drivers/ata/Kconfig | 6 ++-- drivers/ata/ahci.c | 17 ++++++++++ drivers/ata/pata_marvell.c | 65 ++++++++++++++++++++++++++------------ 3 files changed, 66 insertions(+), 22 deletions(-) diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index ae8494944c45..11c8c19f0fb7 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -448,8 +448,10 @@ config PATA_MARVELL tristate "Marvell PATA support via legacy mode" depends on PCI help - This option enables limited support for the Marvell 88SE6145 ATA - controller. + This option enables limited support for the Marvell 88SE61xx ATA + controllers. If you wish to use only the SATA ports then select + the AHCI driver alone. If you wish to the use the PATA port or + both SATA and PATA include this driver. If unsure, say N. diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index c729e6988bbb..bce26ee3806e 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -610,6 +610,15 @@ module_param(ahci_em_messages, int, 0444); MODULE_PARM_DESC(ahci_em_messages, "Set AHCI Enclosure Management Message type (0 = disabled, 1 = LED"); +#if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE) +static int marvell_enable; +#else +static int marvell_enable = 1; +#endif +module_param(marvell_enable, int, 0644); +MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)"); + + static inline int ahci_nr_ports(u32 cap) { return (cap & 0x1f) + 1; @@ -732,6 +741,8 @@ static void ahci_save_initial_config(struct pci_dev *pdev, "MV_AHCI HACK: port_map %x -> %x\n", port_map, port_map & mv); + dev_printk(KERN_ERR, &pdev->dev, + "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n"); port_map &= mv; } @@ -2533,6 +2544,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (!printed_version++) dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); + /* The AHCI driver can only drive the SATA ports, the PATA driver + can drive them all so if both drivers are selected make sure + AHCI stays out of the way */ + if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable) + return -ENODEV; + /* acquire resources */ rc = pcim_enable_device(pdev); if (rc) diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c index 24a011b25024..0d87eec84966 100644 --- a/drivers/ata/pata_marvell.c +++ b/drivers/ata/pata_marvell.c @@ -20,7 +20,42 @@ #include #define DRV_NAME "pata_marvell" -#define DRV_VERSION "0.1.4" +#define DRV_VERSION "0.1.6" + +/** + * marvell_pata_active - check if PATA is active + * @pdev: PCI device + * + * Returns 1 if the PATA port may be active. We know how to check this + * for the 6145 but not the other devices + */ + +static int marvell_pata_active(struct pci_dev *pdev) +{ + int i; + u32 devices; + void __iomem *barp; + + /* We don't yet know how to do this for other devices */ + if (pdev->device != 0x6145) + return 1; + + barp = pci_iomap(pdev, 5, 0x10); + if (barp == NULL) + return -ENOMEM; + + printk("BAR5:"); + for(i = 0; i <= 0x0F; i++) + printk("%02X:%02X ", i, ioread8(barp + i)); + printk("\n"); + + devices = ioread32(barp + 0x0C); + pci_iounmap(pdev, barp); + + if (devices & 0x10) + return 1; + return 0; +} /** * marvell_pre_reset - check for 40/80 pin @@ -34,26 +69,10 @@ static int marvell_pre_reset(struct ata_link *link, unsigned long deadline) { struct ata_port *ap = link->ap; struct pci_dev *pdev = to_pci_dev(ap->host->dev); - u32 devices; - void __iomem *barp; - int i; - /* Check if our port is enabled */ - - barp = pci_iomap(pdev, 5, 0x10); - if (barp == NULL) - return -ENOMEM; - printk("BAR5:"); - for(i = 0; i <= 0x0F; i++) - printk("%02X:%02X ", i, ioread8(barp + i)); - printk("\n"); - - devices = ioread32(barp + 0x0C); - pci_iounmap(pdev, barp); - - if ((pdev->device == 0x6145) && (ap->port_no == 0) && - (!(devices & 0x10))) /* PATA enable ? */ - return -ENOENT; + if (pdev->device == 0x6145 && ap->port_no == 0 && + !marvell_pata_active(pdev)) /* PATA enable ? */ + return -ENOENT; return ata_sff_prereset(link, deadline); } @@ -128,6 +147,12 @@ static int marvell_init_one (struct pci_dev *pdev, const struct pci_device_id *i if (pdev->device == 0x6101) ppi[1] = &ata_dummy_port_info; +#if defined(CONFIG_AHCI) || defined(CONFIG_AHCI_MODULE) + if (!marvell_pata_active(pdev)) { + printk(KERN_INFO DRV_NAME ": PATA port not active, deferring to AHCI driver.\n"); + return -ENODEV; + } +#endif return ata_pci_sff_init_one(pdev, ppi, &marvell_sht, NULL); } From 46c5784c8fa736c2bb42fe681189b86e99abdc2e Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Thu, 4 Sep 2008 18:21:07 -0400 Subject: [PATCH 2/7] sata_mv: add RocketRaid 1720 PCI ID to driver Signed-off-by: Petr Jelen Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 13c1d2af18ac..c815f8ecf6e6 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -667,7 +667,8 @@ static const struct pci_device_id mv_pci_tbl[] = { { PCI_VDEVICE(MARVELL, 0x5041), chip_504x }, { PCI_VDEVICE(MARVELL, 0x5080), chip_5080 }, { PCI_VDEVICE(MARVELL, 0x5081), chip_508x }, - /* RocketRAID 1740/174x have different identifiers */ + /* RocketRAID 1720/174x have different identifiers */ + { PCI_VDEVICE(TTI, 0x1720), chip_6042 }, { PCI_VDEVICE(TTI, 0x1740), chip_508x }, { PCI_VDEVICE(TTI, 0x1742), chip_508x }, From 17248461cb66103b87ff03bdee34aa61035cc93e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 29 Aug 2008 16:03:59 +0200 Subject: [PATCH 3/7] ahci: disable PMP for marvell ahcis Marvell ahcis don't play nicely with PMPs. Disable it. Reported by KueiHuan Chen in the following thread. http://thread.gmane.org/gmane.linux.ide/33296 Signed-off-by: Tejun Heo Cc: KueiHuan Chen Cc: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index bce26ee3806e..66aa146bf4d8 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -420,7 +420,7 @@ static const struct ata_port_info ahci_port_info[] = { /* board_ahci_mv */ { AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI | - AHCI_HFLAG_MV_PATA), + AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP), .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, .pio_mask = 0x1f, /* pio0-4 */ From 2fd673ecf0378ddeeeb87b3605e50212e0c0ddc6 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 29 Aug 2008 16:13:12 +0200 Subject: [PATCH 4/7] sata_nv: disable hardreset for generic of them being unifying probing, hotplug and EH reset paths uniform. Previously, broken hardreset could go unnoticed as it wasn't used during probing but when something goes wrong or after hotplug the problem will surface and bite hard. OSDL bug 11195 reports that sata_nv generic flavor falls into this category. Hardreset itself succeeds but PHY stays offline after hardreset. I tried longer debounce timing but the result was the same. http://bugzilla.kernel.org/show_bug.cgi?id=11195 So, it seems we'll have to drop hardreset from the generic flavor. Signed-off-by: Tejun Heo Cc: Peer Chen Signed-off-by: Jeff Garzik --- drivers/ata/sata_nv.c | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 858f70610eda..1e1f3f3757ae 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -309,8 +309,6 @@ static void nv_nf2_freeze(struct ata_port *ap); static void nv_nf2_thaw(struct ata_port *ap); static void nv_ck804_freeze(struct ata_port *ap); static void nv_ck804_thaw(struct ata_port *ap); -static int nv_hardreset(struct ata_link *link, unsigned int *class, - unsigned long deadline); static int nv_adma_slave_config(struct scsi_device *sdev); static int nv_adma_check_atapi_dma(struct ata_queued_cmd *qc); static void nv_adma_qc_prep(struct ata_queued_cmd *qc); @@ -407,7 +405,7 @@ static struct scsi_host_template nv_swncq_sht = { static struct ata_port_operations nv_generic_ops = { .inherits = &ata_bmdma_port_ops, - .hardreset = nv_hardreset, + .hardreset = ATA_OP_NULL, .scr_read = nv_scr_read, .scr_write = nv_scr_write, }; @@ -1588,21 +1586,6 @@ static void nv_mcp55_thaw(struct ata_port *ap) ata_sff_thaw(ap); } -static int nv_hardreset(struct ata_link *link, unsigned int *class, - unsigned long deadline) -{ - int rc; - - /* SATA hardreset fails to retrieve proper device signature on - * some controllers. Request follow up SRST. For more info, - * see http://bugzilla.kernel.org/show_bug.cgi?id=3352 - */ - rc = sata_sff_hardreset(link, class, deadline); - if (rc) - return rc; - return -EAGAIN; -} - static void nv_adma_error_handler(struct ata_port *ap) { struct nv_adma_port_priv *pp = ap->private_data; From 9c2676b61a5a4b6d99e65fb2f438fb3914302eda Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 29 Aug 2008 16:27:43 +0200 Subject: [PATCH 5/7] libata-sff: kill spurious WARN_ON() in ata_hsm_move() On HSM_ST_ERR, ata_hsm_move() triggers WARN_ON() if AC_ERR_DEV or AC_ERR_HSM is not set. PHY events may trigger HSM_ST_ERR with other error codes and, with or without it, there just isn't much reason to do WARN_ON() on it. Even if error code is not set there, core EH logic won't have any problem dealing with the error condition. OSDL bz#11065 reports this problem. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/libata-sff.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 304fdc6f1dc2..2a4c516894f0 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1315,11 +1315,6 @@ int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, break; case HSM_ST_ERR: - /* make sure qc->err_mask is available to - * know what's wrong and recover - */ - WARN_ON(!(qc->err_mask & (AC_ERR_DEV | AC_ERR_HSM))); - ap->hsm_task_state = HSM_ST_IDLE; /* complete taskfile transaction */ From de058cdea65842ed4bf17da6b50d6fe6b120a6ef Mon Sep 17 00:00:00 2001 From: David Milburn Date: Fri, 29 Aug 2008 10:36:28 -0500 Subject: [PATCH 6/7] pata_sil680: remove duplicate pcim_enable_device Remove duplicate call to pcim_enable_device in sil680_init_one. Signed-off-by: David Milburn Signed-off-by: Jeff Garzik --- drivers/ata/pata_sil680.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c index 720b8645f58a..e970b227fbce 100644 --- a/drivers/ata/pata_sil680.c +++ b/drivers/ata/pata_sil680.c @@ -322,9 +322,6 @@ static int __devinit sil680_init_one(struct pci_dev *pdev, /* Try to acquire MMIO resources and fallback to PIO if * that fails */ - rc = pcim_enable_device(pdev); - if (rc) - return rc; rc = pcim_iomap_regions(pdev, 1 << SIL680_MMIO_BAR, DRV_NAME); if (rc) goto use_ioports; From 8e48b6b307085ce8a747cf94294742f7b7a11b18 Mon Sep 17 00:00:00 2001 From: Seth Heasley Date: Wed, 27 Aug 2008 16:47:22 -0700 Subject: [PATCH 7/7] ahci: RAID mode SATA patch for Intel Ibex Peak DeviceIDs Add the Intel Ibex Peak (PCH) SATA RAID Controller DeviceIDs. Signed-off-by: Seth Heasley Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 66aa146bf4d8..2e1a7cb2ed5f 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -487,7 +487,9 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */ { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */ { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */ + { PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */ { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */ + { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */ /* JMicron 360/1/3/5/6, match class to avoid IDE function */ { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,