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Sagi Grimberg 986ef95ecd IB/mlx5: Expose correct max_sge_rd limit 
mlx5 devices (Connect-IB, ConnectX-4, ConnectX-4-LX) has a limitation
where rdma read work queue entries cannot exceed 512 bytes.
A rdma_read wqe needs to fit in 512 bytes:
- wqe control segment (16 bytes)
- rdma segment (16 bytes)
- scatter elements (16 bytes each)

So max_sge_rd should be: (512 - 16 - 16) / 16 = 30.

Cc: linux-stable@vger.kernel.org
Reported-by: Christoph Hellwig <hch@lst.de>
Tested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagig@grimberg.me>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-04-28 10:49:17 -04:00
..
accessibility
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acpi
Merge branch 'acpi-processor'
2016-04-02 01:17:36 +02:00
amba
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android
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ata
Merge branch 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2016-03-18 20:06:46 -07:00
atm
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2016-03-17 21:38:27 -07:00
auxdisplay
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base
Power management and ACPI material for v4.6-rc1, part 2
2016-03-24 22:59:58 -07:00
bcma
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block
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2016-03-26 15:53:16 -07:00
bluetooth
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bus
arm[64] perf updates for 4.6:
2016-03-21 13:14:16 -07:00
cdrom
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char
Revert "ppdev: use new parport device model"
2016-03-25 09:02:13 -07:00
clk
clk: qcom: ipq4019: add some fixed clocks for ddrppl and fepll
2016-03-29 16:31:16 -07:00
clocksource
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-24 10:32:42 -07:00
connector
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cpufreq
Power management and ACPI material for v4.6-rc1, part 2
2016-03-24 22:59:58 -07:00
cpuidle
cpuidle: menu: Fall back to polling if next timer event is near
2016-03-21 15:50:28 +01:00
crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2016-03-23 06:12:39 -07:00
dca
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devfreq
PM / devfreq: Spelling s/frequnecy/frequency/
2016-03-17 02:30:16 +01:00
dio
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dma
asm-generic changes for 4.6
2016-03-24 23:13:48 -07:00
dma-buf
dma-buf: Update docs for SYNC ioctl
2016-03-21 09:26:45 +01:00
edac
EDAC queue for 4.6
2016-03-16 08:36:55 -07:00
eisa
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extcon
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firewire
IEEE 1394 subsystem patch:
2016-03-25 08:52:25 -07:00
firmware
kernel: add kcov code coverage
2016-03-22 15:36:02 -07:00
fmc
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fpga
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gpio
gpio: xgene: Prevent NULL pointer dereference
2016-03-30 10:39:39 +02:00
gpu
drm/udl: Use unlocked gem unreferencing
2016-04-01 13:22:33 +10:00
hid
drivers/hid/uhid.c: check write() bitness using in_compat_syscall
2016-03-22 15:36:02 -07:00
hsi
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hv
Char/Misc patches for 4.6-rc1
2016-03-17 13:47:50 -07:00
hwmon
hwmon: (max1111) Return -ENODEV from max1111_read_channel if not instantiated
2016-03-27 10:37:48 -07:00
hwspinlock
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hwtracing
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i2c
Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2016-03-22 12:47:40 -07:00
ide
ide: palm_bk3710: test clock rate to avoid division by 0
2016-03-20 16:59:27 -04:00
idle
intel_idle: Support for Intel Xeon Phi Processor x200 Product Family
2016-03-23 16:19:38 -04:00
iio
- New Drivers
2016-03-18 10:15:11 -07:00
infiniband
IB/mlx5: Expose correct max_sge_rd limit
2016-04-28 10:49:17 -04:00
input
Merge branch 'akpm' (patches from Andrew)
2016-03-25 16:59:11 -07:00
iommu
IOMMU Updates for Linux v4.6
2016-03-22 11:57:43 -07:00
ipack
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irqchip
irqchip/mbigen: Make CONFIG_HISILICON_IRQ_MBIGEN a hidden option
2016-03-23 12:02:29 +01:00
isdn
Drivers: isdn: hisax: isac.c: Fix assignment and check into one expression.
2016-03-27 22:38:12 -04:00
leds
platform-drivers-x86 for 4.6-1
2016-03-23 17:20:59 -07:00
lguest
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lightnvm
lightnvm: do not load L2P table if not supported
2016-03-18 18:10:38 -07:00
macintosh
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mailbox
Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration
2016-03-23 06:09:15 -07:00
mcb
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md
Merge tag 'md/4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
2016-03-21 14:18:10 -07:00
media
v4l2-mc: avoid warning about unused variable
2016-04-03 07:03:49 -05:00
memory
MTD updates for v4.6
2016-03-24 19:57:15 -07:00
memstick
drivers/memstick/host/r592.c: avoid gcc-6 warning
2016-03-25 16:37:42 -07:00
message
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mfd
- New Drivers
2016-03-18 10:15:11 -07:00
misc
Merge branch 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-20 19:08:56 -07:00
mmc
MMC core:
2016-03-21 14:35:52 -07:00
mtd
MTD updates for v4.6
2016-03-24 19:57:15 -07:00
net
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-04-01 20:03:33 -05:00
nfc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-03-19 10:05:34 -07:00
ntb
NTB: Remove _addr functions from ntb_hw_amd
2016-03-26 11:44:33 -04:00
nubus
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nvdimm
x86, pmem: use memcpy_mcsafe() for memcpy_from_pmem()
2016-03-28 17:19:31 -07:00
nvme
nvme: avoid cqe corruption when update at the same time as read
2016-03-22 10:27:29 -06:00
nvmem
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of
DeviceTree updates for 4.6:
2016-03-19 15:15:07 -07:00
oprofile
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parisc
PCI changes for the v4.6 merge window:
2016-03-16 14:45:55 -07:00
parport
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pci
Revert "PCI: dra7xx: Mark driver as broken"
2016-03-22 07:50:11 -05:00
pcmcia
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perf
drivers/perf: arm_pmu: avoid NULL dereference when not using devicetree
2016-03-21 11:36:17 +00:00
phy
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pinctrl
Merge branch 'akpm' (patches from Andrew)
2016-03-18 19:26:54 -07:00
platform
Convert straggling drivers to new six-argument get_user_pages()
2016-04-02 18:35:05 -05:00
pnp
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power
Power management and ACPI material for v4.6-rc1, part 2
2016-03-25 16:55:37 -07:00
powercap
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pps
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ps3
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ptp
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 12:13:56 -07:00
pwm
pwm: omap-dmtimer: Add debug message for effective period and duty cycle
2016-03-23 17:11:48 +01:00
rapidio
Convert straggling drivers to new six-argument get_user_pages()
2016-04-02 18:35:05 -05:00
ras
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regulator
- New Drivers
2016-03-18 10:15:11 -07:00
remoteproc
remoteproc: st: fix check of syscon_regmap_lookup_by_phandle() return value
2016-03-28 16:19:00 -07:00
reset
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rpmsg
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rtc
RTC for 4.6 #2
2016-03-24 22:49:08 -07:00
s390
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2016-04-01 07:15:54 -05:00
sbus
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scsi
SCSI misc on 20160326
2016-03-26 11:31:01 -07:00
sfi
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sh
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sn
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soc
ARM: SoC driver updates for v4.6
2016-03-20 15:40:32 -07:00
spi
dmaengine updates for 4.6
2016-03-17 12:34:54 -07:00
spmi
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ssb
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staging
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2016-03-25 08:48:31 -07:00
target
target: add a new add_wwn_groups fabrics method
2016-03-30 20:06:44 -07:00
tc
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thermal
Thermal: Ignore invalid trip points
2016-03-18 14:10:57 +08:00
thunderbolt
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tty
xen: features and fixes for 4.6-rc0
2016-03-22 12:55:17 -07:00
uio
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usb
The clk changes for this release cycle are mostly dominated by
2016-03-23 06:06:45 -07:00
uwb
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vfio
VFIO updates for v4.6-rc1
2016-03-17 13:05:09 -07:00
vhost
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2016-03-22 12:41:14 -07:00
video
The clk changes for this release cycle are mostly dominated by
2016-03-23 06:06:45 -07:00
virt
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virtio
virtio/vhost: new features, performance improvements, cleanups
2016-03-20 13:28:18 -07:00
vlynq
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vme
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w1
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watchdog
hpwdt: use nmi_panic() when kernel panics in NMI handler
2016-03-22 15:36:02 -07:00
xen
xen: features and fixes for 4.6-rc0
2016-03-22 12:55:17 -07:00
zorro
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Kconfig
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Makefile
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