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linux/drivers
Kevin Hao 1871ee134b libata: support the ata host which implements a queue depth less than 32
The sata on fsl mpc8315e is broken after the commit 8a4aeec8d2
("libata/ahci: accommodate tag ordered controllers"). The reason is
that the ata controller on this SoC only implement a queue depth of
16. When issuing the commands in tag order, all the commands in tag
16 ~ 31 are mapped to tag 0 unconditionally and then causes the sata
malfunction. It makes no senses to use a 32 queue in software while
the hardware has less queue depth. So consider the queue depth
implemented by the hardware when requesting a command tag.

Fixes: 8a4aeec8d2 ("libata/ahci: accommodate tag ordered controllers")
Cc: stable@vger.kernel.org
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2014-07-14 12:38:20 -04:00
..
accessibility
acpi Merge branch 'pm-sleep' 2014-06-12 13:43:08 +02:00
amba
ata libata: support the ata host which implements a queue depth less than 32 2014-07-14 12:38:20 -04:00
atm
auxdisplay
base More ACPI and power management updates for 3.16-rc1 2014-06-12 13:14:19 -07:00
bcma
block Merge git://git.infradead.org/users/willy/linux-nvme 2014-06-15 15:58:03 -10:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
bus
cdrom
char Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-06-12 10:30:18 -07:00
clk This pull request contains the second half the of the clk changes for 2014-06-15 16:02:20 -10:00
clocksource
connector
cpufreq Merge branch 'pm-cpufreq' 2014-06-12 13:43:02 +02:00
cpuidle Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-06-12 20:11:38 -07:00
crypto
dca
devfreq
dio
dma
edac
eisa
extcon
firewire
firmware
fmc
gpio gpio: of: Fix handling for deferred probe for -gpio suffix 2014-06-12 09:57:00 +02:00
gpu Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-06-12 11:32:30 -07:00
hid
hsi
hv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
hwmon hwmon: vexpress: Use devm helper for hwmon device registration 2014-06-12 08:36:50 -07:00
hwspinlock
i2c
ide
idle
iio
infiniband Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-06-12 22:38:32 -07:00
input
iommu
ipack
irqchip
isdn
leds Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2014-06-12 13:08:09 -07:00
lguest
macintosh
mailbox
mcb
md . Add dm_accept_partial_bio interface to DM core to allow DM targets 2014-06-12 13:33:29 -07:00
media Merge branch 'topic/omap3isp' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-06-12 23:04:28 -07:00
memory
memstick
message
mfd This pull-request contains some misplaced patches from Tony 2014-06-12 12:42:32 -07:00
misc
mmc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
mtd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-06-12 10:30:18 -07:00
net vxlan: Checksum fixes 2014-06-15 01:00:50 -07:00
nfc
ntb
nubus
of Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
oprofile
parisc
parport
pci PCI changes for the v3.16 merge window (part 2): 2014-06-12 13:20:24 -07:00
pcmcia
phy
pinctrl
platform
pnp
power
powercap
pps
ps3
ptp
pwm
rapidio
regulator
remoteproc
reset
rpmsg
rtc
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
sbus
scsi SCSI for-linus on 20140613 2014-06-14 19:49:48 -05:00
sfi
sh
sn
soc
spi
spmi
ssb
staging Merge branch 'topic/omap3isp' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-06-12 23:04:28 -07:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-06-12 22:38:32 -07:00
tc
thermal
tty Merge commit '3cf2f34' into sched/core, to fix build error 2014-06-12 13:46:37 +02:00
uio
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
uwb
vfio
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-06-12 22:38:32 -07:00
video Revert "offb: Add palette hack for little endian" 2014-06-16 19:45:45 +10:00
virt
virtio
vlynq
vme
w1 Merge commit '3cf2f34' into sched/core, to fix build error 2014-06-12 13:46:37 +02:00
watchdog
xen Merge commit '3cf2f34' into sched/core, to fix build error 2014-06-12 13:46:37 +02:00
zorro
Kconfig
Makefile