AuxXxilium/linux_dsm_epyc7002
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7551c40d90
linux_dsm_epyc7002/drivers/ata
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Qiang Liu 7551c40d90 fsl/sata: create a sysfs entry for rx water mark 
Support config RX WATER MARK via sysfs when running at run-time;
A wrokaround for fix the exception happened to some WD HDD, found on
WD3000HLFS-01G6U1, WD3000HLFS-01G6U0, some SSD disks. The read performance
is also regression (about 30%) when use default value.

According to the latest documents, 0x10 is the default value of RX WATER MARK,
but exception/performance issue happened to some disks mentioned above.

The exception log as below when testing read performance with IOZone:
ata1.00: exception Emask 0x0 SAct 0x7 SErr 0x800000 action 0x6 frozen
ata1: SError: { LinkSeq }
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:00:ff:2c:14/01:00:02:00:00/40 tag 0 ncq 131072 in
res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:08:ff:2d:14/01:00:02:00:00/40 tag 1 ncq 131072 in
res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1.00: failed command: WRITE FPDMA QUEUED
ata1.00: cmd 61/10:10:af:08:6e/00:00:12:00:00/40 tag 2 ncq 8192 out
res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: hard resetting link
ata1: Hardreset failed, not off-lined 0
ata1: Signature Update detected @ 504 msecs
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.00: configured for UDMA/133
ata1.00: device reported invalid CHS sector 0
ata1.00: device reported invalid CHS sector 0
ata1.00: device reported invalid CHS sector 0
ata1: EH complete

The exception/performance can be resolved when RX WATER MARK value is 0x16.

Signed-off-by: Qiang Liu <qiang.liu@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2013-04-03 19:55:36 -04:00
..
acard-ahci.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
ahci_platform.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
ahci.c ahci: Add Device IDs for Intel Wellsburg PCH 2013-03-04 17:11:50 -05:00
ahci.h AHCI: Support multiple MSIs 2013-01-24 17:25:13 +01:00
ata_generic.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
ata_piix.c ata_piix: Fix DVD not dectected at some Haswell platforms 2013-04-03 19:43:36 -04:00
Kconfig [libata] Avoid specialized TLA's in ZPODD's Kconfig 2013-03-04 17:12:46 -05:00
libahci.c AHCI: Support multiple MSIs 2013-01-24 17:25:13 +01:00
libata-acpi.c libata-acpi: remove redundent code for power resource handling 2013-04-03 19:55:32 -04:00
libata-core.c libata: fix DMA to stack in reading devslp_timing parameters 2013-04-03 19:45:57 -04:00
libata-eh.c [libata] pm: differentiate system and runtime pm for ata port 2013-01-25 15:33:33 -05:00
libata-pmp.c libata: migrate ACPI code over to new bindings 2012-06-29 11:38:11 -04:00
libata-scsi.c libata-acpi: remove redundent code for power resource handling 2013-04-03 19:55:32 -04:00
libata-sff.c ata: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
libata-transport.c Revert "libata: export host controller number thru /sys" 2013-01-25 15:30:23 -05:00
libata-transport.h [libata] Add ATA transport class 2010-10-21 20:21:03 -04:00
libata-zpodd.c [libata] fix smatch warning for zpodd_wake_dev 2013-02-20 17:14:03 -05:00
libata.h libata: handle power transition of ODD 2013-01-21 15:41:56 -05:00
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 Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
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 [libata] Convert to devm_ioremap_resource() 2013-02-20 17:13:10 -05:00
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 Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
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/pata_pcmcia.c: adjust suspicious bit operation 2012-07-25 15:06:20 -04:00
pata_pdc202xx_old.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_pdc2027x.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
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 ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
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 fsl/sata: create a sysfs entry for rx water mark 2013-04-03 19:55:36 -04:00
sata_highbank.c sata_highbank: make ahci_highbank_pm_ops static 2013-04-03 19:53:45 -04:00
sata_inic162x.c sata_inic162x: remove unused variable in inic_scr_read() 2012-11-28 12:39:09 -05:00
sata_mv.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
sata_nv.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_promise.c sata_promise: fix hardreset lockdep error 2012-11-28 12:37:56 -05:00
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 libata: add R-Car SATA driver 2013-02-20 17:10:53 -05:00
sata_sil24.c sata_sil24: remove unused variable from sata_sil24.c 2012-11-28 12:39:20 -05:00
sata_sil.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_sis.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_svw.c sata_svw: check DMA start bit before reset 2012-11-15 23:54:41 -05:00
sata_sx4.c sata_sx4: pdc20621_{ata|host}_sg() do not need 'tf' parameter 2012-11-28 12:39:44 -05:00
sata_uli.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_via.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
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