Commit 59d0952b authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 

Pull libata update from Jeff Garzik:
 "Changes, all of them boring and minor:

  1) Ugly MSFT Hyper-V workaround in ata_piix

  2) Fix a longstanding error recovery delay caused by excessive
     re-re-retries, when media errors occur.

  3) Minor hw-specific workarounds and quirks

  4) New PATA driver for ep93xx"

* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  PATA host controller driver for ep93xx
  [libata] Add " 2GB ATA Flash Disk"/"ADMA428M" to DMA blacklist
  ata_generic: Skip is_intel_ider() check when ata_generic=1 is set
  libata-eh don't waste time retrying media errors (v3)
  ata_piix: defer disks to the Hyper-V drivers by default
  libata: add a host flag to ignore detected ATA devices
parents 1259f6ee 2fff2751

drivers/ata/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -416,6 +416,15 @@ config PATA_EFAR 


	  If unsure, say N.



config PATA_EP93XX

	tristate "Cirrus Logic EP93xx PATA support"

	depends on ARCH_EP93XX

	help

	  This option enables support for the PATA controller in

	  the Cirrus Logic EP9312 and EP9315 ARM CPU.



	  If unsure, say N.



config PATA_HPT366

	tristate "HPT 366/368 PATA support"

	depends on PCI

drivers/ata/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ obj-$(CONFIG_PATA_CS5535) += pata_cs5535.o 
obj-$(CONFIG_PATA_CS5536)	+= pata_cs5536.o

obj-$(CONFIG_PATA_CYPRESS)	+= pata_cypress.o

obj-$(CONFIG_PATA_EFAR)		+= pata_efar.o

obj-$(CONFIG_PATA_EP93XX)	+= pata_ep93xx.o

obj-$(CONFIG_PATA_HPT366)	+= pata_hpt366.o

obj-$(CONFIG_PATA_HPT37X)	+= pata_hpt37x.o

obj-$(CONFIG_PATA_HPT3X2N)	+= pata_hpt3x2n.o

drivers/ata/ata_generic.c

+1 −1
Original line number Diff line number Diff line
@@ -177,7 +177,7 @@ static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id 
	if ((id->driver_data & ATA_GEN_CLASS_MATCH) && all_generic_ide == 0)

		return -ENODEV;



	if (id->driver_data & ATA_GEN_INTEL_IDER)

	if ((id->driver_data & ATA_GEN_INTEL_IDER) && !all_generic_ide)

		if (!is_intel_ider(dev))

			return -ENODEV;

drivers/ata/ata_piix.c

+36 −0
Original line number Diff line number Diff line
@@ -1554,6 +1554,39 @@ static bool piix_broken_system_poweroff(struct pci_dev *pdev) 
	return false;

}



static int prefer_ms_hyperv = 1;

module_param(prefer_ms_hyperv, int, 0);



static void piix_ignore_devices_quirk(struct ata_host *host)

{

#if IS_ENABLED(CONFIG_HYPERV_STORAGE)

	static const struct dmi_system_id ignore_hyperv[] = {

		{

			/* On Hyper-V hypervisors the disks are exposed on

			 * both the emulated SATA controller and on the

			 * paravirtualised drivers.  The CD/DVD devices

			 * are only exposed on the emulated controller.

			 * Request we ignore ATA devices on this host.

			 */

			.ident = "Hyper-V Virtual Machine",

			.matches = {

				DMI_MATCH(DMI_SYS_VENDOR,

						"Microsoft Corporation"),

				DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),

			},

		},

		{ }	/* terminate list */

	};

	const struct dmi_system_id *dmi = dmi_first_match(ignore_hyperv);



	if (dmi && prefer_ms_hyperv) {

		host->flags |= ATA_HOST_IGNORE_ATA;

		dev_info(host->dev, "%s detected, ATA device ignore set\n",

			dmi->ident);

	}

#endif

}



/**

 *	piix_init_one - Register PIIX ATA PCI device with kernel services

 *	@pdev: PCI device to register
@@ -1669,6 +1702,9 @@ static int __devinit piix_init_one(struct pci_dev *pdev, 
	}

	host->flags |= ATA_HOST_PARALLEL_SCAN;



	/* Allow hosts to specify device types to ignore when scanning. */

	piix_ignore_devices_quirk(host);



	pci_set_master(pdev);

	return ata_pci_sff_activate_host(host, ata_bmdma_interrupt, sht);

}

drivers/ata/libata-core.c

+7 −0
Original line number Diff line number Diff line
@@ -1973,6 +1973,12 @@ retry: 
	if (class == ATA_DEV_ATA) {

		if (!ata_id_is_ata(id) && !ata_id_is_cfa(id))

			goto err_out;

		if (ap->host->flags & ATA_HOST_IGNORE_ATA &&

							ata_id_is_ata(id)) {

			ata_dev_dbg(dev,

				"host indicates ignore ATA devices, ignored\n");

			return -ENOENT;

		}

	} else {

		if (ata_id_is_ata(id))

			goto err_out;
@@ -4051,6 +4057,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { 
	{ "_NEC DV5800A", 	NULL,		ATA_HORKAGE_NODMA },

	{ "SAMSUNG CD-ROM SN-124", "N001",	ATA_HORKAGE_NODMA },

	{ "Seagate STT20000A", NULL,		ATA_HORKAGE_NODMA },

	{ "2GB ATA Flash Disk", "ADMA428M",	ATA_HORKAGE_NODMA },

	/* Odd clown on sil3726/4726 PMPs */

	{ "Config  Disk",	NULL,		ATA_HORKAGE_DISABLE },

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