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7a234aff3d
kernel-ark/drivers/ata
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Tejun Heo 7a234aff3d ahci: reimplement port_map handling 
Reimplement port_map handling such that

1. Non-zero PORTS_IMPL value is always examined and used if consistent
   with cap.n_ports.

2. When PI and cat.n_ports are inconsistent, honor cap.n_ports and
   force port_map to be ((1 << cap.n_ports) - 1).

3. There were two separate places dealing with port_map.  Unify them
   to one.

As all newer ahci chips seem to get PI correct and older ones usually
have zero PI.  Controllers with holes in PI are very unlikely to screw
up PI, so #2 makes more sense than following inconsistent PI.

Without this change, not setting ATA_FLAG_HONOR_PI when it's needed
results in weird detection failure.  This changed logic should be able
to handle all known cases correctly automatically.

Verified on ICH6 (reports 0 PI), ICH8 (with holes in port_map), ICH9,
JMB360 and JMB363.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:39 -04:00
..
ahci.c ahci: reimplement port_map handling 2007-10-12 14:55:39 -04:00
ata_generic.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
ata_piix.c ata_piix: replace spaces with tabs 2007-10-12 14:55:39 -04:00
Kconfig libata: Update experimental tags to reflect reality better 2007-10-12 14:55:38 -04:00
libata-acpi.c [libata] add ACPI cable detect API 2007-10-12 14:55:34 -04:00
libata-core.c libata: remiplement ata_hpa_resize() 2007-10-12 14:55:39 -04:00
libata-eh.c libata: move EH repeat reporting into ata_eh_report() 2007-10-12 14:55:37 -04:00
libata-scsi.c libata-scsi: convert to use the data buffer accessors 2007-10-12 14:55:38 -04:00
libata-sff.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
libata.h libata: add support for ATA_16 on ATAPI 2007-10-12 14:55:32 -04:00
Makefile AVR32 PATA driver 2007-10-12 14:55:37 -04:00
pata_ali.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_amd.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_artop.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_at32.c AVR32 PATA driver 2007-10-12 14:55:37 -04:00
pata_atiixp.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_bf54x.c libata driver for bf548 on chip ATAPI controller. 2007-10-12 14:55:37 -04:00
pata_cmd64x.c [libata] Remove ->port_disable() hook 2007-10-12 14:55:35 -04:00
pata_cmd640.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_cs5520.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_cs5530.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_cs5535.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_cypress.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_efar.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_hpt3x2n.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_hpt3x3.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_hpt37x.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_hpt366.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_icside.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_isapnp.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_it821x.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_it8213.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_ixp4xx_cf.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_jmicron.c [libata] Remove ->port_disable() hook 2007-10-12 14:55:35 -04:00
pata_legacy.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_marvell.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_mpc52xx.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_mpiix.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_netcell.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_ns87410.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_oldpiix.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_opti.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_optidma.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_pcmcia.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_pdc202xx_old.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_pdc2027x.c pdc2027x: Switch properly to ioread/iowrite 2007-10-12 14:55:38 -04:00
pata_platform.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_qdi.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_radisys.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_rz1000.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_sc1200.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_scc.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_serverworks.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_sil680.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_sis.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_sl82c105.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_triflex.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_via.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_winbond.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pdc_adma.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_inic162x.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_mv.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_nv.c [libata] Remove ->port_disable() hook 2007-10-12 14:55:35 -04:00
sata_promise.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_promise.h Move libata to drivers/ata. 2006-08-10 07:31:37 -04:00
sata_qstor.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_sil24.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_sil.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_sis.c [libata] Remove ->port_disable() hook 2007-10-12 14:55:35 -04:00
sata_svw.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_sx4.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_uli.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_via.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_vsc.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sis.h libata: PATA-mode fixes for sis_sata 2007-07-02 10:17:42 -04:00