linux-toradex.git/include/linux/libata.h, branch v2.6.16.2

[PATCH] libata: fix qc->n_elem == 0 case handling in ata_qc_next_sg

2006-02-20T21:48:18+00:00

This patch makes ata_for_each_sg() start with pad_sgent when
qc->n_elem is zero.  Previously, ata_for_each_sg() unconditionally
started with qc->__sg, handling the first sg to fill_sg() routines
even when the entry was invalid.  And while at it, unwind ?: in
ata_qc_next_sg() into if statement.

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

[PATCH] libata: Fix heuristic typos add LBA48PIO flag and support code, add IRQ flag for next diff

2006-01-18T00:37:45+00:00

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

[PATCH] libata: add a function to decide if we need iordy

2006-01-17T13:25:39+00:00

This ought to be simple but for PIO2 we have to poke around the drive
data to get it 100% correct.

Signed-off-by: Jeff Garzik

Merge branch 'post-2.6.15' of git://brick.kernel.dk/data/git/linux-2.6-block

2006-01-06T17:01:25+00:00

Manual fixup for merge with Jens' "Suspend support for libata", commit
ID 9b847548663ef1039dd49f0eb4463d001e596bc3.

Signed-off-by: Linus Torvalds

[PATCH] Suspend support for libata

2006-01-06T16:36:09+00:00

This patch adds suspend patch to libata, and ata_piix in particular. For
most low level drivers, they should just need to add the 4 hooks to
work. As I can only test ata_piix, I didn't enable it for more
though.

Suspend support is the single most important feature on a notebook, and
most new notebooks have sata drives. It's quite embarrassing that we
_still_ do not support this. Right now, it's perfectly possible to
suspend the drive in mid-transfer.

Signed-off-by: Jens Axboe 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[BLOCK] add FUA support to libata

2006-01-06T08:56:18+00:00

Signed-off-by: Tejun Heo 
Signed-off-by: Jens Axboe

Merge branch 'upstream-fixes'

2005-12-13T07:30:04+00:00

[libata] mark certain hardware (or drivers) with a no-atapi flag

2005-12-13T07:29:45+00:00

Some hardware does not support the PACKET command at all.
Other hardware supports ATAPI, but the driver does something nasty such
as calling BUG() when an ATAPI command is issued.

For these such cases, we mark them with a new flag, ATA_FLAG_NO_ATAPI.

Initial version contributed by Ben Collins.

[PATCH] libata: remove unused qc->waiting

2005-12-13T06:34:46+00:00

There is no user of qc->waiting left after ata_exec_internal()
changes.  Kill the field.

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

[PATCH] libata: implement ata_exec_internal()

2005-12-13T06:34:45+00:00

This patch implements ata_exec_internal() function which performs
libata internal command execution.  Previously, this was done by each
user by manually initializing a qc, issueing it, waiting for its
completion and handling errors.  In addition to obvious code
factoring, using ata_exec_internal() fixes the following bugs.

* qc not freed on issue failure
* ap->qactive clearing could race with the next internal command
* race between timeout handling and irq
* ignoring error condition not represented in tf->status

Also, qc & hardware are not accessed anymore once it's completed,
making internal commands more conformant with general semantics.
ata_exec_internal() also makes it easy to issue internal commands from
multiple threads if that becomes necessary.

This patch only implements ata_exec_internal().  A following patch
will convert all users.

Signed-off-by: Tejun Heo 

--

Jeff, all patches have been regenerated against upstream branch as of
today.  (575ab52a218e4ff0667a6cbd972c3af443ee8713)

Also, I took out a debug printk from ata_exec_internal (don't know how
that one got left there).  Other than that, all patches are identical
to the previous posting.

Thanks. :-)
Signed-off-by: Jeff Garzik