linux/drivers
dingtianhong a99b646afa PCI: Disable PCIe Relaxed Ordering if unsupported
When bit4 is set in the PCIe Device Control register, it indicates
whether the device is permitted to use relaxed ordering.
On some platforms using relaxed ordering can have performance issues or
due to erratum can cause data-corruption. In such cases devices must avoid
using relaxed ordering.

The patch adds a new flag PCI_DEV_FLAGS_NO_RELAXED_ORDERING to indicate that
Relaxed Ordering (RO) attribute should not be used for Transaction Layer
Packets (TLP) targeted towards these affected root complexes.

This patch checks if there is any node in the hierarchy that indicates that
using relaxed ordering is not safe. In such cases the patch turns off the
relaxed ordering by clearing the capability for this device.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Ashok Raj <ashok.raj@intel.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-14 22:14:50 -07:00
..
accessibility
acpi Merge branches 'acpi-soc', 'acpi-wdat' and 'acpi-cppc' 2017-08-03 20:30:18 +02:00
amba
android binder: Use wake up hint for synchronous transactions. 2017-07-17 14:44:19 +02:00
ata libata: fix a couple of doc build warnings 2017-07-31 08:03:06 -07:00
atm atm: zatm: Fix an error handling path in 'zatm_init_one()' 2017-07-18 11:37:46 -07:00
auxdisplay
base dma mapping fixes for 4.13-rc2: 2017-07-25 17:17:18 -07:00
bcma
block sunvdc: prevent sunvdc panic when mpgroup disk added to guest domain 2017-08-09 22:22:32 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-07-05 12:31:59 -07:00
bus bus: uniphier-system-bus: set up registers when resuming 2017-08-04 12:57:18 +02:00
cdrom block: don't set bounce limit in blk_init_queue 2017-06-27 12:13:45 -06:00
char random: fix warning message on ia64 and parisc 2017-08-08 09:36:46 -07:00
clk clk: keystone: sci-clk: Fix sci_clk_get 2017-08-02 18:37:26 -07:00
clocksource clocksource/drivers/timer-of: Handle of_irq_get_byname() result correctly 2017-07-17 22:43:00 +02:00
connector
cpufreq Merge branches 'pm-cpufreq-x86', 'pm-cpufreq-docs' and 'intel_pstate' 2017-08-03 20:29:24 +02:00
cpuidle powerpc updates for 4.13 2017-07-07 13:55:45 -07:00
crypto crypto: inside-secure - fix the sha state length in hmac_sha1_setkey 2017-08-03 13:36:11 +08:00
dax - A few DM integrity fixes that improve performance. One that address 2017-07-28 12:17:17 -07:00
dca
devfreq PM / devfreq: constify attribute_group structures. 2017-07-06 10:17:24 +09:00
dio
dma dmaengine updates for 4.13-rc1 2017-07-08 12:36:50 -07:00
dma-buf Merge branch 'drm-misc-next-fixes' into drm-misc-fixes 2017-07-17 11:56:07 -04:00
edac EDAC, pnd2: Fix Apollo Lake DIMM detection 2017-06-29 10:37:50 +02:00
eisa
extcon
firewire
firmware efi: avoid fortify checks in EFI stub 2017-07-12 16:26:02 -07:00
fmc
fpga
fsi drivers/fsi: fix fsi_slave_mode prototype 2017-07-17 16:13:54 +02:00
gpio gpio: tegra: fix unbalanced chained_irq_enter/exit 2017-08-02 10:42:38 +02:00
gpu Merge branch 'drm-fixes-4.13' of git://people.freedesktop.org/~agd5f/linux into drm-fixes 2017-08-04 11:43:14 +10:00
hid HID: ortek: add one more buggy device 2017-07-24 17:38:21 +02:00
hsi HSI changes for the v4.13 series 2017-07-04 14:28:22 -07:00
hv vmbus: re-enable channel tasklet 2017-07-17 15:00:47 +02:00
hwmon hwmon: (applesmc) Avoid buffer overruns 2017-07-15 16:38:56 -07:00
hwspinlock
hwtracing Char/Misc patches for 4.13-rc1 2017-07-03 20:55:59 -07:00
i2c i2c: allow i2c-versatile for ARM MPS platforms 2017-07-31 17:05:16 +02:00
ide ide: avoid warning for timings calculation 2017-07-21 04:37:22 +01:00
idle intel_idle: Use more common logging style 2017-06-29 22:58:35 +02:00
iio hwmon updates for v4.13: 2017-07-04 11:48:27 -07:00
infiniband IPoIB fixes for 4.13 2017-08-07 13:30:40 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2017-07-14 22:53:37 -07:00
iommu iommu/amd: Fix schedule-while-atomic BUG in initialization code 2017-07-26 15:39:14 +02:00
ipack
irqchip irqchip/digicolor: Drop unnecessary static 2017-07-18 21:59:23 +02:00
isdn mISDN: Fix null pointer dereference at mISDN_FsmNew 2017-08-11 14:56:23 -07:00
leds LED updates for 4.13 2017-07-06 11:32:40 -07:00
lguest
lightnvm lightnvm: pblk: advance bio according to lba index 2017-07-28 08:06:00 -06:00
macintosh Merge branch 'work.misc-set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-05 13:13:32 -07:00
mailbox mailbox: pcc: Fix crash when request PCC channel 0 2017-07-26 02:11:47 +02:00
mcb
md Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2017-07-28 12:24:21 -07:00
media media: platform: davinci: drop VPFE_CMD_S_CCDC_RAW_PARAMS 2017-07-26 06:14:33 -04:00
memory ARM: SoC driver updates 2017-07-04 14:47:47 -07:00
memstick
message
mfd chrome-platform-for-linus-4.13 2017-07-11 09:55:47 -07:00
misc powerpc updates for 4.13 2017-07-07 13:55:45 -07:00
mmc mmc: block: bypass the queue even if usage is present for hotplug 2017-08-03 11:00:39 +02:00
mtd mtd: nand: atmel: Fix EDO mode check 2017-08-02 10:26:43 +02:00
mux mux: mux-core: unregister mux_class in mux_exit() 2017-07-17 16:38:35 +02:00
net bonding: ratelimit failed speed/duplex update warning 2017-08-13 20:01:38 -07:00
nfc NFC 4.13 pull request 2017-07-01 14:30:39 -07:00
ntb ntb: Add error path/handling to Debug FS entry creation 2017-07-06 11:30:08 -04:00
nubus
nvdimm libnvdimm: fix badblock range handling of ARS range 2017-07-17 11:43:58 -07:00
nvme nvme: validate admin queue before unquiesce 2017-07-26 17:41:41 +02:00
nvmem nvmem: rockchip-efuse: amend compatible rk322x-efuse to rk3228-efuse 2017-07-17 16:15:57 +02:00
of Merge remote-tracking branches 'asoc/fix/dpcm', 'asoc/fix/imx', 'asoc/fix/msm8916', 'asoc/fix/multi-pcm', 'asoc/fix/of-graph' and 'asoc/fix/pxa' into asoc-linus 2017-08-01 15:17:06 +01:00
oprofile
parisc parisc: pdc_stable: Fix locking when creating sysfs links 2017-07-31 16:43:13 +02:00
parport
pci PCI: Disable PCIe Relaxed Ordering if unsupported 2017-08-14 22:14:50 -07:00
pcmcia
perf drivers/perf: arm_pmu: Request PMU SPIs with IRQF_PER_CPU 2017-07-27 13:43:22 +01:00
phy phy: bcm-ns-usb3: fix MDIO_BUS dependency 2017-07-27 17:20:19 -07:00
pinctrl Pin control fixes for the v4.13 cycle: 2017-08-09 14:30:34 -07:00
platform platform/x86: intel-vbtn: match power button on press rather than release 2017-08-05 14:37:19 -07:00
pnp This is the bulk of GPIO changes for the v4.13 series: 2017-07-07 12:40:27 -07:00
power power supply and reset changes for the v4.13 series (part 2) 2017-07-13 11:47:59 -07:00
powercap powercap/RAPL: prevent overridding bits outside of the mask 2017-06-28 00:38:34 +02:00
pps
ps3
ptp ptp: introduce ptp auxiliary worker 2017-08-01 15:22:55 -07:00
pwm pwm: Changes for v4.13-rc1 2017-07-13 11:49:52 -07:00
rapidio
ras arm64 updates for 4.13: 2017-07-05 17:09:27 -07:00
regulator Merge remote-tracking branches 'regulator/topic/settle', 'regulator/topic/tps65910' and 'regulator/topic/tps65917' into regulator-next 2017-07-03 16:52:21 +01:00
remoteproc remoteproc/keystone: Fix circular dependencies for ARM configs 2017-06-27 16:21:34 -07:00
reset ARM: SoC driver updates 2017-07-04 14:47:47 -07:00
rpmsg rpmsg updates for v4.13 2017-07-06 15:38:31 -07:00
rtc RTC for 4.13 2017-07-13 12:15:06 -07:00
s390 s390/qeth: fix L3 next-hop in xmit qeth hdr 2017-08-07 11:24:37 -07:00
sbus sbus: Convert to using %pOF instead of full_name 2017-07-20 12:37:10 -07:00
scsi SCSI fixes on 20170808 2017-08-08 09:38:41 -07:00
sfi
sh drivers/sh/intc/virq.c: delete an error message for a failed memory allocation in add_virq_to_pirq() 2017-07-06 16:24:30 -07:00
sn
soc soc: zte: Restrict SOC_ZTE to ARCH_ZX or COMPILE_TEST 2017-07-27 13:12:34 +02:00
spi Merge branch 'for-spi' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-08 10:41:53 -07:00
spmi spmi: pmic-arb: Always allocate ppid_to_apid table 2017-07-17 15:00:47 +02:00
ssb
staging media fixes for v4.13-rc2 2017-08-05 14:09:26 -07:00
target Add wait_for_random_bytes() and get_random_*_wait() functions so that 2017-07-15 12:44:02 -07:00
tc
tee
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2017-07-14 13:12:32 -07:00
thunderbolt Merge branches 'pm-core' and 'pm-misc' 2017-08-03 20:29:45 +02:00
tty gpio: exar: Use correct property prefix and document bindings 2017-08-01 13:43:55 +02:00
uio
usb xhci: fix memleak in xhci_run() 2017-07-20 14:40:36 +02:00
uwb driver core patches for 4.13-rc1 2017-07-03 20:27:48 -07:00
vfio vfio/pci: Fix handling of RC integrated endpoint PCIe capability size 2017-07-27 10:39:33 -06:00
vhost Revert "vhost: cache used event for better performance" 2017-07-29 14:15:56 -07:00
video Merge branch 'akpm' (patches from Andrew) 2017-07-13 12:38:49 -07:00
virt
virtio virtio-balloon: coding format cleanup 2017-07-25 16:37:35 +03:00
vlynq
vme
w1 w1: omap-hdq: fix error return code in omap_hdq_probe() 2017-07-17 16:48:15 +02:00
watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2017-07-11 09:59:37 -07:00
xen xen: dont fiddle with event channel masking in suspend/resume 2017-07-27 19:55:46 +02:00
zorro
Kconfig
Makefile