linux/drivers/ata, branch v2.6.32.48

ahci: Enable SB600 64bit DMA on Asus M3A

2011-11-07T20:32:13Z

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()

2011-08-08T17:23:08Z

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

2011-06-23T22:24:08Z

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

2011-06-23T22:24:08Z

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

2011-06-23T22:24:08Z

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

2011-06-23T22:24:08Z

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

ata: use pci_dev->revision

2011-06-23T22:24:08Z

commit 89d3b3603bfb648e0113d8682d4f84dd18a776bd upstream. Some places were using PCI_CLASS_REVISION instead of PCI_REVISION_ID, so they weren't converted by commit 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 (PCI: Change all drivers to use pci_device->revision). Signed-off-by: Sergei Shtylyov Signed-off-by: Jeff Garzik Signed-off-by: Greg Kroah-Hartman

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

2011-05-09T22:55:41Z

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

sata_via: Delay on vt6420 when starting ATAPI DMA write

2011-05-09T22:55:40Z

commit a55ab496ea9c820b7192c15ef1fbf3291edfe638 upstream. When writing a disc on certain lite-on dvd-writers (also rebadged as optiarc/LG/...) connected to a vt6420, the ATAPI CDB ends up in the datastream and on the disc, causing silent corruption. Delaying between sending the CDB and starting DMA seems to prevent this. I do not know if there are burners that do not suffer from this, but the patch should be safe for those as well. There are many reports of this issue, but AFAICT no solution was found before. For example: http://lkml.indiana.edu/hypermail/linux/kernel/0802.3/0561.html Signed-off-by: Bart Hartgers Signed-off-by: Jeff Garzik [bwh: Remove version bump for 2.6.32] Signed-off-by: Greg Kroah-Hartman

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

2011-03-23T20:16:42Z

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