kernel.git/drivers/ata/libata.h, branch linux-2.6.25.y

make atapi_dmadir static

2008-02-25T22:29:35Z

atapi_dmadir can now become static. Signed-off-by: Adrian Bunk Signed-off-by: Jeff Garzik

libata: implement libata.force module parameter

2008-02-20T17:12:28Z

This patch implements libata.force module parameter which can selectively override ATA port, link and device configurations including cable type, SATA PHY SPD limit, transfer mode and NCQ. For example, you can say "use 1.5Gbps for all fan-out ports attached to the second port but allow 3.0Gbps for the PMP device itself, oh, the device attached to the third fan-out port chokes on NCQ and shouldn't go over UDMA4" by the following. libata.force=2:1.5g,2.15:3.0g,2.03:noncq,udma4 Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik

libata: move ata_set_mode() to libata-eh.c

2008-01-23T10:24:10Z

Move ata_set_mode() to libata-eh.c. ata_set_mode() is surely an EH action and will be more tightly coupled with the rest of error handling. Move it to libata-eh.c. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik

libata-acpi: add ACPI _PSx method

2008-01-23T10:24:09Z

ACPI spec (ver 3.0a, p289) requires IDE power on/off executes ACPI _PSx methods. As recently most PATA drivers use libata, this patch adds _PSx method support in libata. ACPI spec doesn't mention if SATA requires the same _PSx method. Signed-off-by: Shaohua Li Acked-by: Len Brown Signed-off-by: Jeff Garzik

libata: Disable ATA8-ACS proposed Trusted Computing features by default

2008-01-23T10:24:09Z

Historically word 48 in the identify data was used to mean 32bit I/O was supported for VLB IDE etc. ATA8 reassigns this word to the Trusted Computing Group, where it is used for TCG features. This means that an ATA8 TCG drive is going to trigger 32bit I/O on some systems which will be funny. Anyway we need to sort this out ready for ATA8 so: - Reorder the ata.h header a bit so the ata_version function occurs early in it - Make dword_io check the ATA version - Add an ATA8 version checking TCG presence test While we are at it the current drafts have a flaw where it may not be possible to disable TCG features at boot (and opt out of the trusted model) as TCG intends because it relies on presence of a different optional feature (DCS). Handle this in software by refusing the TCG commands if libata.allow_tpm is not set. (We must make it possible as some environments such as proprietary VDR devices will doubtless want to use it to lock up content) Finally as with CPRM print a warning so that the user knows they may not be able to full access and use the device. Signed-off-by: Alan Cox

libata-acpi: add new hooks ata_acpi_dissociate() and ata_acpi_on_disable()

2007-12-18T01:33:12Z

Add two hooks - ata_acpi_dissociate() which is called during driver detach after the whole host is shutdown and ata_acpi_on_disable() which is called when a device is disabled. Signed-off-by: Tejun heo Signed-off-by: Jeff Garzik

[libata] Link power management infrastructure

2007-10-29T15:00:35Z

Device Initiated Power Management, which is defined in SATA 2.5 can be enabled for disks which support it. This patch enables DIPM when the user sets the link power management policy to "min_power". Additionally, libata drivers can define a function (enable_pm) that will perform hardware specific actions to enable whatever power management policy the user set up for Host Initiated Power management (HIPM). This power management policy will be activated after all disks have been enumerated and intialized. Drivers should also define disable_pm, which will turn off link power management, but not change link power management policy. Documentation/scsi/link_power_management_policy.txt has additional information. Signed-off-by: Kristen Carlson Accardi Signed-off-by: Jeff Garzik

libata: add @timeout to ata_exec_internal[_sg]()

2007-10-12T18:55:47Z

Add @timeout argument to ata_exec_internal[_sg](). If 0, default timeout ata_probe_timeout is used. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik

libata-pmp: extend ACPI support to cover PMP

2007-10-12T18:55:44Z

Extend ata_acpi_associate_sata_port() such that it can handle PMP and call it when PMP is attached and detached. Build breakage when !CONFIG_ATA_ACPI was spotted and fixed by Petr Vandrovec. Signed-off-by: Tejun Heo Cc: Petr Vandrovec Signed-off-by: Jeff Garzik

libata-pmp: hook PMP support and enable it

2007-10-12T18:55:44Z

Hook PMP support into libata and enable it. Connect SCR and probing functions, and update ata_dev_classify() to detect PMP. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik