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Mark Lord c6112bd86b sata_mv: warn on PIO with multiple DRQs 
Chip errata sometimes prevents reliable use of PIO commands which involve
more than a single DRQ (data request).  In normal operation, libata should
not generate such PIO commands (uses DMA instead), but they could be sent
in via SG_IO from userspace.

A full workaround might be to break up such commands into sequences
of single DRQ ones, but that's just way too complex for something
that doesn't normally happen in real life.

So, allow the attempt (it often works, despite the errata),
but log the event for reference when somebody screams.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-18 20:27:58 -04:00
..
ahci.c ahci: jmb361 has only one port 2008-06-18 20:27:45 -04:00
ata_generic.c pata_atiixp: Don't disable 2008-05-06 11:43:44 -04:00
ata_piix.c [libata] ata_piix: more acer short cable quirks 2008-06-04 06:29:06 -04:00
Kconfig sata_inic162x: update intro comment, up the version and drop EXPERIMENTAL 2008-05-06 11:40:57 -04:00
libata-acpi.c [libata] ACPI: Properly handle bay devices in dock stations 2008-06-04 06:28:50 -04:00
libata-core.c libata: don't check whether to use DMA or not for no data commands 2008-06-18 20:27:49 -04:00
libata-eh.c libata: ignore recovered PHY errors 2008-05-19 17:51:47 -04:00
libata-pmp.c libata: SRST can't be trusted on PMP sil3726 2008-05-30 12:37:56 -04:00
libata-scsi.c libata: don't check whether to use DMA or not for no data commands 2008-06-18 20:27:49 -04:00
libata-sff.c libata: fix G5 SATA broken on -rc5 2008-06-05 08:36:37 -07:00
libata.h libata: don't check whether to use DMA or not for no data commands 2008-06-18 20:27:49 -04:00
Makefile libata: Add Intel SCH PATA driver 2008-05-06 11:33:58 -04:00
pata_acpi.c pata_atiixp: Don't disable 2008-05-06 11:43:44 -04:00
pata_ali.c ata: remove FIT() macro 2008-05-19 17:30:32 -04:00
pata_amd.c ata: remove FIT() macro 2008-05-19 17:30:32 -04:00
pata_artop.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_at32.c avr32/pata: avoid unnecessary memset (updated after comments) 2008-05-19 17:27:40 -04:00
pata_atiixp.c [libata] pata_atiixp: fix PIO timing data misprogramming 2008-04-29 17:39:45 -04:00
pata_bf54x.c pata-bf54x: Set ATAPI HSM to control IDE device terminate sequence. 2008-05-19 17:27:29 -04:00
pata_cmd64x.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_cmd640.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_cs5520.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_cs5530.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_cs5535.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_cs5536.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_cypress.c ata: remove FIT() macro 2008-05-19 17:30:32 -04:00
pata_efar.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_hpt3x2n.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_hpt3x3.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_hpt37x.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_hpt366.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_icside.c libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl 2008-06-04 06:40:41 -04:00
pata_isapnp.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_it821x.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_it8213.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_ixp4xx_cf.c ATA/IDE: fix platform driver hotplug/coldplug 2008-04-25 00:45:04 -04:00
pata_jmicron.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_legacy.c ata: remove FIT() macro 2008-05-19 17:30:32 -04:00
pata_marvell.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_mpc52xx.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_mpiix.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_netcell.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_ninja32.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_ns87410.c ata: remove FIT() macro 2008-05-19 17:30:32 -04:00
pata_ns87415.c ata: remove FIT() macro 2008-05-19 17:30:32 -04:00
pata_of_platform.c Rename: linux/pata_platform.h to linux/ata_platform.h 2008-02-06 06:54:17 -05:00
pata_oldpiix.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_opti.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_optidma.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_pcmcia.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_pdc202xx_old.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_pdc2027x.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_platform.c ATA/IDE: fix platform driver hotplug/coldplug 2008-04-25 00:45:04 -04:00
pata_qdi.c ata: remove FIT() macro 2008-05-19 17:30:32 -04:00
pata_radisys.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_rb532_cf.c libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl 2008-06-04 06:40:41 -04:00
pata_rz1000.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_sc1200.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_scc.c libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl 2008-06-04 06:40:41 -04:00
pata_sch.c libata: Add Intel SCH PATA driver 2008-05-06 11:33:58 -04:00
pata_serverworks.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_sil680.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_sis.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_sl82c105.c drivers/ata: trim trailing whitespace 2008-05-19 17:56:10 -04:00
pata_triflex.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_via.c ata: remove FIT() macro 2008-05-19 17:30:32 -04:00
pata_winbond.c ata: remove FIT() macro 2008-05-19 17:30:32 -04:00
pdc_adma.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
sata_fsl.c [libata] sata_fsl: Fix broken driver, add port multiplier (PMP) support 2008-05-30 12:39:44 -04:00
sata_inic162x.c sata_inic162x: update intro comment, up the version and drop EXPERIMENTAL 2008-05-06 11:40:57 -04:00
sata_mv.c sata_mv: warn on PIO with multiple DRQs 2008-06-18 20:27:58 -04:00
sata_nv.c sata_nv: make hardreset return -EAGAIN on success 2008-04-25 00:45:48 -04:00
sata_promise.c sata_promise: other cleanups 2008-05-19 17:31:34 -04:00
sata_promise.h libata annotations and fixes 2008-01-23 05:24:15 -05:00
sata_qstor.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
sata_sil.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
sata_sil24.c sata_sil24: don't use NCQ if marvell 4140 PMP is attached 2008-05-19 17:51:48 -04:00
sata_sis.c sata_sis: SCR accessors return -EINVAL when requested SCR isn't available 2008-04-24 23:42:47 -04:00
sata_svw.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
sata_sx4.c libata: add qc_fill_rtf port operation 2008-04-17 15:44:23 -04:00
sata_uli.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
sata_via.c libata: restructure SFF post-reset readiness waits 2008-04-17 15:44:22 -04:00
sata_vsc.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
sis.h libata: PATA-mode fixes for sis_sata 2007-07-02 10:17:42 -04:00