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linux/drivers/ata
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Tejun Heo f07b772da4 libata: disable LPM for some WD SATA-I devices 
commit ecd75ad514 upstream.

For some reason, some early WD drives spin up and down drives
erratically when the link is put into slumber mode which can reduce
the life expectancy of the device significantly.  Unfortunately, we
don't have full list of devices and given the nature of the issue it'd
be better to err on the side of false positives than the other way
around.  Let's disable LPM on all WD devices which match one of the
known problematic model prefixes and are SATA-I.

As horkage list doesn't support matching SATA capabilities, this is
implemented as two horkages - WD_BROKEN_LPM and NOLPM.  The former is
set for the known prefixes and sets the latter if the matched device
is SATA-I.

Note that this isn't optimal as this disables all LPM operations and
partial link power state reportedly works fine on these; however, the
way LPM is implemented in libata makes it difficult to precisely map
libata LPM setting to specific link power state.  Well, these devices
are already fairly outdated.  Let's just disable whole LPM for now.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-tested-by: Nikos Barkas <levelwol@gmail.com>
Reported-and-tested-by: Ioannis Barkas <risc4all@yahoo.com>
References: https://bugzilla.kernel.org/show_bug.cgi?id=57211
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-06 11:08:16 -08:00
..
acard-ahci.c libata: update "Maintained by:" tags 2013-05-14 11:13:04 -07:00
ahci_platform.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
ahci.c ahci: add PCI ID for Marvell 88SE9170 SATA controller 2014-01-15 15:28:52 -08:00
ahci.h libata: update "Maintained by:" tags 2013-05-14 11:13:04 -07:00
ata_generic.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
ata_piix.c ata: Fix DVD not dectected at some platform with Wellsburg PCH 2013-08-04 16:50:55 +08:00
Kconfig libata: make it clear that sata_inic162x is experimental 2013-08-04 16:50:55 +08:00
libahci.c ahci: disabled FBS prior to issuing software reset 2013-12-04 10:56:13 -08:00
libata-acpi.c libata-acpi: add back ACPI based hotplug functionality 2013-06-25 00:51:33 +02:00
libata-core.c libata: disable LPM for some WD SATA-I devices 2014-02-06 11:08:16 -08:00
libata-eh.c libata: make ata_eh_qc_retry() bump scmd->allowed on bogus failures 2013-11-13 12:05:31 +09:00
libata-pmp.c libata: apply behavioral quirks to sil3826 PMP 2013-08-29 09:47:38 -07:00
libata-scsi.c libata: disable LPM for some WD SATA-I devices 2014-02-06 11:08:16 -08:00
libata-sff.c libata: update "Maintained by:" tags 2013-05-14 11:13:04 -07:00
libata-transport.c libata: Fix display of sata speed 2013-12-04 10:55:51 -08:00
libata-transport.h [libata] Add ATA transport class 2010-10-21 20:21:03 -04:00
libata-zpodd.c libata-zpodd: must use ata_tf_init() 2013-07-25 14:07:27 -07:00
libata.h libata-acpi: add back ACPI based hotplug functionality 2013-06-25 00:51:33 +02:00
Makefile libata: add R-Car SATA driver 2013-02-20 17:10:53 -05:00
pata_acpi.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ali.c pata_ali: fix "Satelite" typo 2011-10-14 13:10:42 -04:00
pata_amd.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_arasan_cf.c ata: arasan: remove the need for platform_data 2013-04-19 22:25:51 +02:00
pata_artop.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_at32.c pata_at32: use module_platform_driver_probe() 2013-04-03 19:52:10 -04:00
pata_at91.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_atiixp.c pata_atiixp: override cable detection on MSI E350DM-E33 2012-08-17 13:26:51 -04:00
pata_atp867x.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_bf54x.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_cmd64x.c ata: Convert dev_printk(KERN_<LEVEL> to dev_<level>( 2012-11-28 12:40:15 -05:00
pata_cmd640.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_cs5520.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_cs5530.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_cs5535.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_cs5536.c pata_cs5536: add quirk for broken udma 2012-11-28 12:38:41 -05:00
pata_cypress.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_efar.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ep93xx.c drivers/ata: don't check resource with devm_ioremap_resource 2013-05-12 15:19:46 +02:00
pata_hpt3x2n.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_hpt3x3.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_hpt37x.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_hpt366.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_icside.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_imx.c pata_imx: add devicetree support 2013-04-11 19:38:00 -04:00
pata_isapnp.c [libata] Improve timeout handling 2009-03-24 22:52:39 -04:00
pata_it821x.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_it8213.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ixp4xx_cf.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_jmicron.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_legacy.c pata_legacy: bogus clock in opti82c46x_set_piomode() 2013-04-03 19:53:10 -04:00
pata_macio.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_marvell.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_mpc52xx.c Merge remote-tracking branch 'agust/next' into next 2013-02-20 11:39:05 +11:00
pata_mpiix.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_netcell.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ninja32.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ns87410.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ns87415.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_octeon_cf.c pata_octeon_cf: Use resource_size function 2013-04-03 19:53:30 -04:00
pata_of_platform.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_oldpiix.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_opti.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_optidma.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_palmld.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_pcmcia.c drivers/ata: use module_pcmcia_driver() in pcmcia drivers 2013-03-15 12:26:03 -07:00
pata_pdc202xx_old.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_pdc2027x.c pata_pdc2027x: Fix compiler warning 2013-04-12 15:24:12 +02:00
pata_piccolo.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_platform.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_pxa.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_radisys.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_rb532_cf.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_rdc.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_rz1000.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_samsung_cf.c pata_samsung_cf: use module_platform_driver_probe() 2013-03-04 17:12:52 -05:00
pata_sc1200.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_scc.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_sch.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_serverworks.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_sil680.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_sis.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_sl82c105.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_triflex.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_via.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pdc_adma.c libata: update "Maintained by:" tags 2013-05-14 11:13:04 -07:00
sata_dwc_460ex.c sata_dwc_460ex: remove file exec bit (chmod 0755 -> 0644) 2012-12-14 09:43:39 -05:00
sata_fsl.c sata_fsl: save irqs while coalescing 2013-08-29 09:47:38 -07:00
sata_highbank.c sata_highbank: increase retry count but shorten duration for Calxeda controller 2013-07-25 14:07:28 -07:00
sata_inic162x.c libata: make it clear that sata_inic162x is experimental 2013-08-04 16:50:55 +08:00
sata_mv.c ata: sata_mv: fix disk hotplug for Armada 370/XP SoCs 2014-02-06 11:08:16 -08:00
sata_nv.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_promise.c libata: update "Maintained by:" tags 2013-05-14 11:13:04 -07:00
sata_promise.h libata annotations and fixes 2008-01-23 05:24:15 -05:00
sata_qstor.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_rcar.c sata_rcar: fix interrupt handling 2013-06-02 00:54:45 -07:00
sata_sil.c libata: update "Maintained by:" tags 2013-05-14 11:13:04 -07:00
sata_sil24.c sata_sil24: remove unused variable from sata_sil24.c 2012-11-28 12:39:20 -05:00
sata_sis.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_svw.c sata_svw: switch to ->show_info() 2013-04-09 14:13:28 -04:00
sata_sx4.c libata: update "Maintained by:" tags 2013-05-14 11:13:04 -07:00
sata_uli.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_via.c libata: update "Maintained by:" tags 2013-05-14 11:13:04 -07:00
sata_vsc.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
sis.h libata: PATA-mode fixes for sis_sata 2007-07-02 10:17:42 -04:00