linux-stable.git/drivers/ata, branch linux-2.6.33.y

ahci: Enable SB600 64bit DMA on Asus M3A

2011-11-07T21:47:07+00:00

commit 3c4aa91f21f65b7b40bdfb015eacbcb8453ccae2 upstream.

Like e65cc194f7628ecaa02462f22f42fb09b50dcd49 this patch enables 64bit DMA
for the AHCI SATA controller of a board that has the SB600 southbridge. In
this case though we're enabling 64bit DMA for the Asus M3A motherboard. It
is a new enough board that all of the BIOS releases since the initial
release (0301 from 2007-10-22) work correctly with 64bit DMA enabled.

Signed-off-by: Mark Nelson 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

libata: fix unexpectedly frozen port after ata_eh_reset()

2011-08-08T17:35:51+00:00

commit 8c56cacc724c7650b893d43068fa66044aa29a61 upstream.

To work around controllers which can't properly plug events while
reset, ata_eh_reset() clears error states and ATA_PFLAG_EH_PENDING
after reset but before RESET is marked done.  As reset is the final
recovery action and full verification of devices including onlineness
and classfication match is done afterwards, this shouldn't lead to
lost devices or missed hotplug events.

Unfortunately, it forgot to thaw the port when clearing EH_PENDING, so
if the condition happens after resetting an empty port, the port could
be left frozen and EH will end without thawing it, making the port
unresponsive to further hotplug events.

Thaw if the port is frozen after clearing EH_PENDING.  This problem is
reported by Bruce Stenning in the following thread.

 http://thread.gmane.org/gmane.linux.kernel/1123265

stable: I think we should weather this patch a bit longer in -rcX
	before sending it to -stable.  Please wait at least a month
	after this patch makes upstream.  Thanks.

-v2: Fixed spelling in the comment per Dave Howorth.

Signed-off-by: Tejun Heo 
Reported-by: Bruce Stenning 
Cc: Dave Howorth 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

pata_cm64x: fix boot crash on parisc

2011-06-23T22:28:42+00:00

commit 9281b16caac1276817b77033c5b8a1f5ca30102c upstream.

The old IDE cmd64x checks the status of the CNTRL register to see if
the ports are enabled before probing them.  pata_cmd64x doesn't do
this, which causes a HPMC on parisc when it tries to poke at the
secondary port because apparently the BAR isn't wired up (and a
non-responding piece of memory causes a HPMC).

Fix this by porting the CNTRL register port detection logic from IDE
cmd64x.  In addition, following converns from Alan Cox, add a check to
see if a mobility electronics bridge is the immediate parent and forgo
the check if it is (prevents problems on hotplug controllers).

Signed-off-by: James Bottomley 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

pata_cmd64x: remove unused definitions

2011-06-23T22:28:42+00:00

commit c754d9b6e04371fb398cdd2f5e77be895126be20 upstream.

s/ARTIM2/ARTTIM23/ in cmd648_bmdma_stop() while at it

Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

pata_cmd64x: cmd648_bmdma_stop() fix

2011-06-23T22:28:41+00:00

commit 03a849e6ddb604ff6a220b78637ee8e122ffc796 upstream.

Clear the primary channel pending interrupt bit
instead of the reserved one.

Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

pata_cmd64x: fix PIO setup

2011-06-23T22:28:41+00:00

commit a2bd62207af4be8f5fe815ff90cc309056407829 upstream.

Fix incorrect handling of recovery clocks value == 16 resulting
in overclocked recovery timings & potentially underclocked active
timings.

Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

libata: set queue DMA alignment to sector size for ATAPI too

2011-05-09T23:04:46+00:00

commit 729a6a300e628a48cf12bac93a964a535e83cd1d upstream.

ata_pio_sectors() expects buffer for each sector to be contained in a
single page; otherwise, it ends up overrunning the first page.  This
is achieved by setting queue DMA alignment.  If sector_size is smaller
than PAGE_SIZE and all buffers are sector_size aligned, buffer for
each sector is always contained in a single page.

This wasn't applied to ATAPI devices but IDENTIFY_PACKET is executed
as ATA_PROT_PIO and thus uses ata_pio_sectors().  Newer versions of
udev issue IDENTIFY_PACKET with unaligned buffer triggering the
problem and causing oops.

This patch fixes the problem by setting sdev->sector_size to
ATA_SECT_SIZE on ATATPI devices and always setting DMA alignment to
sector_size.  While at it, add a warning for the unlikely but still
possible scenario where sector_size is larger than PAGE_SIZE, in which
case the alignment wouldn't be enough.

Signed-off-by: Tejun Heo 
Reported-by: John Stanley 
Tested-by: John Stanley 
Signed-off-by: Jeff Garzik 
Signed-off-by: Jonathan Liu 
Signed-off-by: Greg Kroah-Hartman

ahci: AHCI mode SATA patch for Intel Patsburg SATA RAID controller

2011-03-21T19:45:38+00:00

commit 64a3903d0885879ba8706a8bcf71c5e3e7664db2 upstream.

This patch adds an updated SATA RAID DeviceID for the Intel Patsburg PCH.

Signed-off-by: Seth Heasley 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

ahci: AHCI mode SATA patch for Intel DH89xxCC DeviceIDs

2011-03-21T19:45:38+00:00

commit a4a461a6df6c0481d5a3d61660ed97f5b539cf16 upstream.

This patch adds the AHCI-mode SATA DeviceID for the Intel DH89xxCC PCH.

Signed-off-by: Seth Heasley 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

ahci: AHCI and RAID mode SATA patch for Intel Patsburg DeviceIDs

2011-03-21T19:45:38+00:00

commit 992b3fb9b5391bc4de5b42bb810dc6dd583a6c4a upstream.

This patch adds the Intel Patsburg (PCH) SATA AHCI and RAID Controller
DeviceIDs.

Signed-off-by: Seth Heasley 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman