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David Milburn 2dc0b46b5e libata: sata_down_spd_limit should return if driver has not recorded sstatus speed 
During hotplug, it is possible for 6Gbps link speed to be limited all
the way down to 1.5 Gbps which may lead to a slower link speed when
drive is re-connected.

This behavior has been seen on a Intel Lewisburg SATA controller
(8086:a1d2) with HGST HUH728080ALE600 drive where SATA link speed was
limited to 1.5 Gbps and when re-connected the link came up 3.0 Gbps.

This patch was retested on above configuration and showed the
hotplugged link to come back online at max speed (6Gbps). I did not
see the downgrade when testing on Intel C600/X79, but retested patched
linux-4.14-rc5 kernel and didn't see any side effects from this
change. Also, successfully retested hotplug on port multiplier 3Gbps
link.

tj: Minor comment updates.

Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2017-12-04 13:57:03 -08:00
..
acard-ahci.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
ahci_brcm.c
ata: ahci_brcm: Avoid writing to read-only registers
2017-06-22 16:13:00 -04:00
ahci_ceva.c
ata: ceva: Add SMMU support for SATA IP
2017-10-23 07:09:27 -07:00
ahci_da850.c
sata: ahci-da850: Fix some error handling paths in 'ahci_da850_probe()'
2017-08-16 07:38:27 -07:00
ahci_dm816.c
ata: ahci: add support for DaVinci DM816 SATA controller
2017-03-24 11:40:03 -04:00
ahci_imx.c
ahci: imx: Handle increased read failures for IMX53 temperature sensor in low frequency mode.
2017-11-13 12:17:43 -08:00
ahci_mtk.c
ahci: mtk: Change driver name to ahci-mtk
2017-12-04 12:35:29 -08:00
ahci_mvebu.c
ata: ahci_mvebu: add support for Armada 3700 variant
2016-02-18 12:41:17 -05:00
ahci_octeon.c
Delete redundant return value check of platform_get_resource()
2017-03-06 15:40:59 -05:00
ahci_platform.c
ata: ahci_platform: Add shutdown handler
2017-08-04 13:34:14 -07:00
ahci_qoriq.c
ahci: qoriq: refine port register configuration
2017-12-04 12:18:08 -08:00
ahci_seattle.c
ata: fix return value check in ahci_seattle_get_port_info()
2016-06-15 14:26:41 -04:00
ahci_st.c
ahci: st: Add ports-implemented property in support
2016-08-10 12:16:49 -04:00
ahci_sunxi.c
ata: ahci_platform: fix owner module reference mismatch for scsi host
2015-01-28 18:45:23 -05:00
ahci_tegra.c
ata: ahci_platform: fix owner module reference mismatch for scsi host
2015-01-28 18:45:23 -05:00
ahci_xgene.c
ata: ahci_xgene: free structure returned by acpi_get_object_info()
2017-01-06 11:39:14 -05:00
ahci.c
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2017-11-15 14:11:41 -08:00
ahci.h
ahci: Convert timers to use timer_setup()
2017-10-19 23:15:16 +02:00
ata_generic.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
ata_piix.c
ata_piix: Add Fujitsu-Siemens Lifebook S6120 to short cable IDs
2017-09-18 20:32:02 -07:00
Kconfig
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
libahci_platform.c
ata: mark expected switch fall-throughs
2017-10-23 07:06:09 -07:00
libahci.c
ahci: Convert timers to use timer_setup()
2017-10-19 23:15:16 +02:00
libata-acpi.c
ACPI and power management updates for 3.15-rc1
2014-04-01 12:48:54 -07:00
libata-core.c
libata: sata_down_spd_limit should return if driver has not recorded sstatus speed
2017-12-04 13:57:03 -08:00
libata-eh.c
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2017-11-15 14:11:41 -08:00
libata-pmp.c
ata: pmp: add quirk for Marvell 4140 SATA PMP
2015-07-14 17:46:38 -04:00
libata-scsi.c
libata: make static arrays const, reduces object code size
2017-09-19 11:53:11 -07:00
libata-sff.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
libata-trace.c
libata: NCQ encapsulation for ZAC MANAGEMENT OUT
2016-05-09 12:36:46 -04:00
libata-transport.c
libata: transport: Remove circular dependency at free time
2017-03-06 15:24:48 -05:00
libata-transport.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
libata-zpodd.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
libata.h
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2017-11-15 14:11:41 -08:00
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pata_acpi.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ali.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_amd.c
cs5536: add support for IDE controller variant
2017-08-11 10:35:07 -07:00
pata_arasan_cf.c
drivers: ata: pata_arasan_cf: use the same name for the same lock
2016-06-28 12:49:40 -04:00
pata_artop.c
ata: pata_artop: remove redundant initialization of pio
2017-09-18 20:24:21 -07:00
pata_at32.c
ata: drop owner assignment from platform_drivers
2014-10-20 16:20:17 +02:00
pata_atiixp.c
Revert "pata_atiixp: Don't use unconnected secondary port on SB600/SB700"
2017-03-27 13:52:00 -04:00
pata_atp867x.c
ata: mark expected switch fall-throughs
2017-10-23 07:06:09 -07:00
pata_bf54x.c
ata: bf54x: cut drvdata assignment
2017-05-30 11:54:36 -04:00
pata_bk3710.c
pata_bk3710: clear status bits of BMISP on chipset initialization
2017-03-30 16:13:04 +05:30
pata_cmd64x.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_cmd640.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_cs5520.c
ata: remove deprecated use of pci api
2015-04-08 10:55:05 -04:00
pata_cs5530.c
ata: Delete unnecessary checks before the function call "pci_dev_put"
2015-02-03 07:04:44 -05:00
pata_cs5535.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_cs5536.c
cs5536: add support for IDE controller variant
2017-08-11 10:35:07 -07:00
pata_cypress.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_efar.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ep93xx.c
ata: ep93xx: cut drvdata assignment
2017-05-30 11:54:36 -04:00
pata_falcon.c
Merge branch 'for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2017-02-21 17:21:32 -08:00
pata_ftide010.c
ata: ftide010: fix resource printing
2017-06-21 18:06:18 -04:00
pata_hpt3x2n.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
pata_hpt3x3.c
ata: remove deprecated use of pci api
2015-04-08 10:55:05 -04:00
pata_hpt37x.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
pata_hpt366.c
ata: hpt366: fix incorrect mask when checking at cmd_high_time
2016-07-12 11:02:05 -04:00
pata_icside.c
scsi: rename SCSI_MAX_{SG, SG_CHAIN}_SEGMENTS
2016-04-15 16:53:14 -04:00
pata_imx.c
pata: imx: support controller modes up to PIO4
2016-11-09 11:48:58 -05:00
pata_isapnp.c
PNP: ata/pata_isapnp: Use module_pnp_driver to register driver
2015-03-18 22:39:17 +01:00
pata_it821x.c
pata_it821x: use "const char *" for string literals
2015-10-15 10:58:53 -04:00
pata_it8213.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ixp4xx_cf.c
ata: pass queued command to ->sff_data_xfer method
2017-01-10 11:11:17 -05:00
pata_jmicron.c
PCI: Disable async suspend/resume for JMicron multi-function SATA/AHCI
2015-08-24 15:27:11 -05:00
pata_legacy.c
ata: pass queued command to ->sff_data_xfer method
2017-01-10 11:11:17 -05:00
pata_macio.c
ata: constify of_device_id structures
2017-03-06 15:18:01 -05:00
pata_marvell.c
ata: Use IS_ENABLED() instead of checking for built-in or module
2016-05-27 11:27:23 -04:00
pata_mpc52xx.c
ata: constify of_device_id structures
2017-03-06 15:18:01 -05:00
pata_mpiix.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_netcell.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ninja32.c
pata_ninja32: Avoid corrupting status flags
2016-08-30 11:59:47 -04:00
pata_ns87410.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ns87415.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_octeon_cf.c
pata_octeon_cf: use of_property_read_{bool|u32}()
2017-08-28 10:44:24 -07:00
pata_of_platform.c
ata: constify of_device_id structures
2017-03-06 15:18:01 -05:00
pata_oldpiix.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_opti.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_optidma.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_palmld.c
ata: drop owner assignment from platform_drivers
2014-10-20 16:20:17 +02:00
pata_pcmcia.c
ata: pass queued command to ->sff_data_xfer method
2017-01-10 11:11:17 -05:00
pata_pdc202xx_old.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_pdc2027x.c
pata_pdc2027x : make pdc2027x_*_timing structures const
2017-11-27 11:46:26 -08:00
pata_piccolo.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_platform.c
ata: pata_platform: fix owner module reference mismatch for scsi host
2015-01-28 18:45:23 -05:00
pata_pxa.c
ata: pata_pxa: dmaengine conversion
2015-09-10 17:02:04 -04:00
pata_radisys.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_rb532_cf.c
ata: rb532_cf: cut drvdata assignment
2017-05-30 11:54:37 -04:00
pata_rdc.c
ata: declare ata_port_info structures as const
2017-06-12 14:06:34 -04:00
pata_rz1000.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_samsung_cf.c
ata: samsung_cf: cut drvdata assignment
2017-05-30 11:54:37 -04:00
pata_sc1200.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_sch.c
ata: declare ata_port_info structures as const
2017-06-12 14:06:34 -04:00
pata_serverworks.c
pata_serverworks: disable 64-KB DMA transfers on Broadcom OSB4 IDE Controller
2014-10-07 17:10:14 -04:00
pata_sil680.c
ata: remove deprecated use of pci api
2015-04-08 10:55:05 -04:00
pata_sis.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_sl82c105.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_triflex.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_via.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pdc_adma.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
sata_dwc_460ex.c
ata: sata_dwc_460ex: Propagate platform device ID to DMA driver
2017-11-13 12:17:11 -08:00
sata_fsl.c
ata: sata_fsl: cut drvdata assignment
2017-05-30 11:54:37 -04:00
sata_gemini.c
ata: sata_gemini: Introduce explicit IDE pin control
2017-08-11 10:32:09 -07:00
sata_gemini.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sata_highbank.c
remove lots of IS_ERR_VALUE abuses
2016-05-27 15:26:11 -07:00
sata_inic162x.c
ata: declare ata_port_info structures as const
2017-06-12 14:06:34 -04:00
sata_mv.c
ata: mark expected switch fall-throughs
2017-10-23 07:06:09 -07:00
sata_nv.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
sata_promise.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
sata_promise.h
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
sata_qstor.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
sata_rcar.c
ata: sata_rcar: Use of_device_get_match_data() helper
2017-10-04 07:18:29 -07:00
sata_sil24.c
ata: remove deprecated use of pci api
2015-04-08 10:55:05 -04:00
sata_sil.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
sata_sis.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
sata_svw.c
ata: Convert to using %pOF instead of full_name
2017-07-18 18:02:36 -04:00
sata_sx4.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
sata_uli.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
sata_via.c
sata_via: Enable optional hotplug on VT6420
2017-06-26 16:54:53 -04:00
sata_vsc.c
ata: update references for libata documentation
2017-05-16 11:25:59 -04:00
sis.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00