dingtianhong
87e09cdec4
PCI: Disable Relaxed Ordering for some Intel processors ...
According to the Intel spec section 3.9.1 said:
3.9.1 Optimizing PCIe Performance for Accesses Toward Coherent Memory
and Toward MMIO Regions (P2P)
In order to maximize performance for PCIe devices in the processors
listed in Table 3-6 below, the soft- ware should determine whether the
accesses are toward coherent memory (system memory) or toward MMIO
regions (P2P access to other devices). If the access is toward MMIO
region, then software can command HW to set the RO bit in the TLP
header, as this would allow hardware to achieve maximum throughput for
these types of accesses. For accesses toward coherent memory, software
can command HW to clear the RO bit in the TLP header (no RO), as this
would allow hardware to achieve maximum throughput for these types of
accesses.
Table 3-6. Intel Processor CPU RP Device IDs for Processors Optimizing
PCIe Performance
Processor CPU RP Device IDs
Intel Xeon processors based on 6F01H-6F0EH
Broadwell microarchitecture
Intel Xeon processors based on 2F01H-2F0EH
Haswell microarchitecture
It means some Intel processors has performance issue when use the Relaxed
Ordering Attribute, so disable Relaxed Ordering for these root port.
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-14 22:14:50 -07:00
Merge branches 'acpi-soc', 'acpi-wdat' and 'acpi-cppc'
2017-08-03 20:30:18 +02:00
binder: Use wake up hint for synchronous transactions.
2017-07-17 14:44:19 +02:00
libata: fix a couple of doc build warnings
2017-07-31 08:03:06 -07:00
atm: zatm: Fix an error handling path in 'zatm_init_one()'
2017-07-18 11:37:46 -07:00
dma mapping fixes for 4.13-rc2:
2017-07-25 17:17:18 -07:00
sunvdc: prevent sunvdc panic when mpgroup disk added to guest domain
2017-08-09 22:22:32 -07:00
bus: uniphier-system-bus: set up registers when resuming
2017-08-04 12:57:18 +02:00
random: fix warning message on ia64 and parisc
2017-08-08 09:36:46 -07:00
clk: keystone: sci-clk: Fix sci_clk_get
2017-08-02 18:37:26 -07:00
clocksource/drivers/timer-of: Handle of_irq_get_byname() result correctly
2017-07-17 22:43:00 +02:00
Merge branches 'pm-cpufreq-x86', 'pm-cpufreq-docs' and 'intel_pstate'
2017-08-03 20:29:24 +02:00
powerpc updates for 4.13
2017-07-07 13:55:45 -07:00
crypto: inside-secure - fix the sha state length in hmac_sha1_setkey
2017-08-03 13:36:11 +08:00
- A few DM integrity fixes that improve performance. One that address
2017-07-28 12:17:17 -07:00
dmaengine updates for 4.13-rc1
2017-07-08 12:36:50 -07:00
Merge branch 'drm-misc-next-fixes' into drm-misc-fixes
2017-07-17 11:56:07 -04:00
efi: avoid fortify checks in EFI stub
2017-07-12 16:26:02 -07:00
drivers/fsi: fix fsi_slave_mode prototype
2017-07-17 16:13:54 +02:00
gpio: tegra: fix unbalanced chained_irq_enter/exit
2017-08-02 10:42:38 +02:00
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: ortek: add one more buggy device
2017-07-24 17:38:21 +02:00
vmbus: re-enable channel tasklet
2017-07-17 15:00:47 +02:00
hwmon: (applesmc) Avoid buffer overruns
2017-07-15 16:38:56 -07:00
i2c: allow i2c-versatile for ARM MPS platforms
2017-07-31 17:05:16 +02:00
ide: avoid warning for timings calculation
2017-07-21 04:37:22 +01:00
IPoIB fixes for 4.13
2017-08-07 13:30:40 -04:00
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/amd: Fix schedule-while-atomic BUG in initialization code
2017-07-26 15:39:14 +02:00
irqchip/digicolor: Drop unnecessary static
2017-07-18 21:59:23 +02:00
mISDN: Fix null pointer dereference at mISDN_FsmNew
2017-08-11 14:56:23 -07:00
LED updates for 4.13
2017-07-06 11:32:40 -07:00
lightnvm: pblk: advance bio according to lba index
2017-07-28 08:06:00 -06:00
mailbox: pcc: Fix crash when request PCC channel 0
2017-07-26 02:11:47 +02:00
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: platform: davinci: drop VPFE_CMD_S_CCDC_RAW_PARAMS
2017-07-26 06:14:33 -04:00
chrome-platform-for-linus-4.13
2017-07-11 09:55:47 -07:00
powerpc updates for 4.13
2017-07-07 13:55:45 -07:00
mmc: block: bypass the queue even if usage is present for hotplug
2017-08-03 11:00:39 +02:00
mtd: nand: atmel: Fix EDO mode check
2017-08-02 10:26:43 +02:00
mux: mux-core: unregister mux_class in mux_exit()
2017-07-17 16:38:35 +02:00
bonding: ratelimit failed speed/duplex update warning
2017-08-13 20:01:38 -07:00
ntb: Add error path/handling to Debug FS entry creation
2017-07-06 11:30:08 -04:00
libnvdimm: fix badblock range handling of ARS range
2017-07-17 11:43:58 -07:00
nvme: validate admin queue before unquiesce
2017-07-26 17:41:41 +02:00
nvmem: rockchip-efuse: amend compatible rk322x-efuse to rk3228-efuse
2017-07-17 16:15:57 +02:00
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
parisc: pdc_stable: Fix locking when creating sysfs links
2017-07-31 16:43:13 +02:00
PCI: Disable Relaxed Ordering for some Intel processors
2017-08-14 22:14:50 -07:00
drivers/perf: arm_pmu: Request PMU SPIs with IRQF_PER_CPU
2017-07-27 13:43:22 +01:00
phy: bcm-ns-usb3: fix MDIO_BUS dependency
2017-07-27 17:20:19 -07:00
Pin control fixes for the v4.13 cycle:
2017-08-09 14:30:34 -07:00
platform/x86: intel-vbtn: match power button on press rather than release
2017-08-05 14:37:19 -07:00
This is the bulk of GPIO changes for the v4.13 series:
2017-07-07 12:40:27 -07:00
power supply and reset changes for the v4.13 series (part 2)
2017-07-13 11:47:59 -07:00
ptp: introduce ptp auxiliary worker
2017-08-01 15:22:55 -07:00
pwm: Changes for v4.13-rc1
2017-07-13 11:49:52 -07:00
rpmsg updates for v4.13
2017-07-06 15:38:31 -07:00
RTC for 4.13
2017-07-13 12:15:06 -07:00
s390/qeth: fix L3 next-hop in xmit qeth hdr
2017-08-07 11:24:37 -07:00
sbus: Convert to using %pOF instead of full_name
2017-07-20 12:37:10 -07:00
SCSI fixes on 20170808
2017-08-08 09:38:41 -07:00
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
soc: zte: Restrict SOC_ZTE to ARCH_ZX or COMPILE_TEST
2017-07-27 13:12:34 +02:00
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: pmic-arb: Always allocate ppid_to_apid table
2017-07-17 15:00:47 +02:00
media fixes for v4.13-rc2
2017-08-05 14:09:26 -07:00
Add wait_for_random_bytes() and get_random_*_wait() functions so that
2017-07-15 12:44:02 -07:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
2017-07-14 13:12:32 -07:00
Merge branches 'pm-core' and 'pm-misc'
2017-08-03 20:29:45 +02:00
gpio: exar: Use correct property prefix and document bindings
2017-08-01 13:43:55 +02:00
xhci: fix memleak in xhci_run()
2017-07-20 14:40:36 +02:00
vfio/pci: Fix handling of RC integrated endpoint PCIe capability size
2017-07-27 10:39:33 -06:00
Revert "vhost: cache used event for better performance"
2017-07-29 14:15:56 -07:00
Merge branch 'akpm' (patches from Andrew)
2017-07-13 12:38:49 -07:00
virtio-balloon: coding format cleanup
2017-07-25 16:37:35 +03:00
w1: omap-hdq: fix error return code in omap_hdq_probe()
2017-07-17 16:48:15 +02:00
Merge git://www.linux-watchdog.org/linux-watchdog
2017-07-11 09:59:37 -07:00
xen: dont fiddle with event channel masking in suspend/resume
2017-07-27 19:55:46 +02:00
87e09cdec4