linux-stable.git/include/linux/libata.h, branch linux-2.6.17.y

[PATCH] libata: minor patch for ATA_DFLAG_PIO

2006-06-30T00:17:16+00:00

Problem:
 - With 2.6.17 libata, some PIO-only devices are given DMA commands.

Changes:
 - Do not clear the ATA_DFLAG_PIO flag in ata_dev_configure().

Signed-off-by: Tejun Heo 
Signed-off-by: Albert Lee 
Signed-off-by: Chris Wright

[PATCH] move ->eh_strategy_handler to the transport class

2006-04-10T18:15:47+00:00

Overriding the whole EH code is a per-transport, not per-host thing.
Move ->eh_strategy_handler to the transport class, same as
->eh_timed_out.

Downside is that scsi_host_alloc can't check for the total lack of EH
anymore, but the transition period from old EH where we needed it is
long gone already.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Jeff Garzik

[PATCH] libata: Simplex and other mode filtering logic

2006-03-30T00:30:28+00:00

Add a field to the host_set called 'flags' (was host_set_flags changed
to suit Jeff)
Add a simplex_claimed field so we can remember who owns the DMA channel
Add a ->mode_filter() hook to allow drivers to filter modes
Add docs for mode_filter and set_mode
Filter according to simplex state
Filter cable in core

This provides the needed framework to support all the mode rules found
in the PATA world. The simplex filter deals with 'to spec' simplex DMA
systems found in older chips. The cable filter avoids duplicating the
same rules in each chip driver with PATA. Finally the mode filter is
neccessary because drive/chip combinations have errata that forbid
certain modes with some drives or types of ATA object.

Drive speed setup remains per channel for now and the filters now use
the framework Tejun put into place which cleans them up a lot from the
older libata-pata patches.

Signed-off-by: Alan Cox 
Signed-off-by: Jeff Garzik

[PATCH] libata: Add ->set_mode hook for odd drivers

2006-03-30T00:30:27+00:00

Some hardware doesn't want the usual mode setup logic running. This
allows the hardware driver to replace it for special cases in the least
invasive way possible.

Signed-off-by: Alan Cox 
Signed-off-by: Jeff Garzik

[PATCH] libata: BMDMA handling updates

2006-03-30T00:30:27+00:00

This is the minimal patch set to enable the current code to be used with
a controller following SFF (ie any PATA and early SATA controllers)
safely without crashes if there is no BMDMA area or if BMDMA is not
assigned by the BIOS for some reason.

Simplex status is recorded but not acted upon in this change, this isn't
a problem with the current drivers as none of them are for simplex
hardware. A following diff will deal with that.

The flags in the probe structure remain ->host_set_flags although Jeff
asked me to rename them, simply because the rename would break the usual
Linux rules that old code should break when there are changes. not
compile and run and then blow up/eat your computer/etc. Renaming this
later is a trivial exercise once a better name is chosen.

Signed-off-by: Jeff Garzik

[PATCH] libata: kill E.D.D.

2006-03-24T17:24:33+00:00

E.D.D. has no user in-tree and mostly useless.  Kill it.  For possible
out-of-tree users, add a nice warning message and error handling if
LLDD doesn't report any useable reset mechanism (and thus tries to use
E.D.D.).

Signed-off-by: Tejun Heo 
Signed-off-by: Jeff Garzik

[PATCH] libata: Remove dependence on host_set->dev for SAS

2006-03-24T15:18:43+00:00

Remove some of the dependence on the host_set struct
in preparation for supporting SAS HBAs. Adds a struct device
pointer to the ata_port struct.

Signed-off-by: Brian King 
Signed-off-by: Jeff Garzik

[PATCH] libata: add ata_dev_pair helper

2006-03-24T14:52:32+00:00

Signed-off-by: Alan Cox 
Signed-off-by: Jeff Garzik

[PATCH] Make libata not powerdown drivers on PM_EVENT_FREEZE.

2006-03-24T14:51:36+00:00

At the moment libata doesn't pass pm_message_t down ata_device_suspend.
This causes drives to be powered down when we just want a freeze,
causing unnecessary wear and tear. This patch gets pm_message_t passed
down so that it can be used to determine whether to power down the
drive.

Signed-off-by: Nigel Cunningham 

 drivers/scsi/libata-core.c |    5 +++--
 drivers/scsi/libata-scsi.c |    4 ++--
 drivers/scsi/scsi_sysfs.c  |    2 +-
 include/linux/libata.h     |    4 ++--
 include/scsi/scsi_host.h   |    2 +-
 5 files changed, 9 insertions(+), 8 deletions(-)
Signed-off-by: Jeff Garzik

[PATCH] libata: add per-dev pio/mwdma/udma_mask

2006-03-24T14:28:33+00:00

Add per-dev pio/mwdma/udma_mask.  All transfer mode limits used to be
applied to ap->*_mask which unnecessarily restricted other devices
sharing the port.  This change will also benefit later EH speed down
and hotplug.

Signed-off-by: Tejun Heo 
Signed-off-by: Jeff Garzik