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Max Gurtovoy ff13c1b87c nvme-rdma: Fix max_hw_sectors calculation 
By default, the NVMe/RDMA driver should support max io_size of 1MiB (or
upto the maximum supported size by the HCA). Currently, one will see that
/sys/class/block/<bdev>/queue/max_hw_sectors_kb is 1020 instead of 1024.

A non power of 2 value can cause performance degradation due to
unnecessary splitting of IO requests and unoptimized allocation units.

The number of pages per MR has been fixed here, so there is no longer any
need to reduce max_sectors by 1.

Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-25 12:53:14 -07:00
..
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acpi Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-16 18:47:53 -07:00
amba Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
android binder: prevent transactions to context manager from its own process. 2019-07-24 11:02:28 +02:00
ata ata: libahci_platform: Add of_node_put() before loop exit 2019-09-19 12:21:44 -06:00
atm Kconfig: Fix the reference to the IDT77105 Phy driver in the description of ATM_NICSTAR_USE_IDT77105 2019-08-19 18:15:18 -07:00
auxdisplay It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
base Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-16 16:28:19 -07:00
bcma
block pktcdvd: remove warning on attempting to register non-passthrough dev 2019-09-22 10:01:05 -06:00
bluetooth Bluetooth: bpa10x: change return value 2019-09-04 16:11:46 +02:00
bus ARM: SoC driver updates for v5.4 2019-09-16 15:52:38 -07:00
cdrom
char ia64 for v5.4 - big change here is removal of support for SGI Altix 2019-09-16 15:32:01 -07:00
clk ARM: DT updates for v5.4 2019-09-16 15:56:22 -07:00
clocksource Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 12:35:15 -07:00
connector connector: remove redundant input callback from cn_dev 2019-07-21 13:31:14 -07:00
counter Staging / IIO driver update for 5.3-rc1 2019-07-11 15:36:02 -07:00
cpufreq x86/intel: Aggregate microserver naming 2019-08-28 11:29:32 +02:00
cpuidle PSCI: cpuidle: Refactor CPU suspend power_state parameter handling 2019-08-09 17:51:39 +01:00
crypto s390 updates for the 5.4 merge window 2019-09-17 14:04:43 -07:00
dax Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
dca
devfreq
dio
dma ARM: SoC platform updates for v5.4 2019-09-16 15:48:14 -07:00
dma-buf Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
edac Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-16 18:47:53 -07:00
eisa
extcon
firewire firewire: mark expected switch fall-throughs 2019-07-25 20:09:37 -05:00
firmware Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-16 16:47:38 -07:00
fpga FPGA Manager fixes for 5.3 2019-08-28 22:26:47 +02:00
fsi fsi: scom: Don't abort operations for minor errors 2019-08-28 22:59:18 +02:00
gnss
gpio ARM: SoC driver updates for v5.4 2019-09-16 15:52:38 -07:00
gpu Merge branch 'x86-vmware-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-16 19:40:24 -07:00
hid HID: wacom: correct misreported EKR ring values 2019-08-20 10:40:40 +02:00
hsi
hv Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 12:35:15 -07:00
hwmon It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
hwspinlock
hwtracing It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
i2c It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
i3c i3c: master: Use dev_to_i3cmaster() 2019-08-27 09:43:59 +02:00
ide ide: remove the sgiioc4 driver 2019-08-16 11:33:56 -07:00
idle x86/intel: Aggregate microserver naming 2019-08-28 11:29:32 +02:00
iio It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
infiniband RDMA/siw: Fix IPv6 addr_list locking 2019-08-28 10:29:19 -04:00
input input/vmmouse: Update the backdoor call with support for new instructions 2019-08-28 13:43:01 +02:00
interconnect
iommu ia64 for v5.4 - big change here is removal of support for SGI Altix 2019-09-16 15:32:01 -07:00
ipack TTY / Serial driver updates for 5.3-rc1 2019-07-11 15:38:21 -07:00
irqchip Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 11:42:15 -07:00
isdn isdn/capi: check message length in capi_write() 2019-09-07 17:44:25 +02:00
leds LED updates for 5.3-rc1 2019-07-09 08:59:39 -07:00
lightnvm lightnvm: print error when target is not found 2019-09-05 13:17:01 -06:00
macintosh drivers/macintosh/smu.c: Mark expected switch fall-through 2019-07-31 21:44:45 +10:00
mailbox - stm32: race fix by adding a spinlock 2019-07-14 16:36:51 -07:00
mcb
md block: centralize PI remapping logic to the block layer 2019-09-17 20:03:49 -06:00
media dmaengine fixes for v5.3-rc5 2019-08-16 08:59:33 -07:00
memory iommu/mediatek: Clean up struct mtk_smi_iommu 2019-08-30 15:57:27 +02:00
memstick MMC core: 2019-07-11 18:11:21 -07:00
message SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
mfd - Bug Fixes 2019-08-27 10:47:01 -07:00
misc ia64 for v5.4 - big change here is removal of support for SGI Altix 2019-09-16 15:32:01 -07:00
mmc mmc: tmio: Fixup runtime PM management during remove 2019-09-13 13:49:09 +02:00
mtd mtd: hyperbus: fix dependency and build error 2019-08-29 14:31:23 +02:00
mux
net ARM: SoC driver updates for v5.4 2019-09-16 15:52:38 -07:00
nfc NFC: st95hf: fix spelling mistake "receieve" -> "receive" 2019-09-11 15:07:07 +01:00
ntb NTB/msi: remove incorrect MODULE defines 2019-08-05 15:42:27 -04:00
nubus
nvdimm libnvdimm/pfn: Fix namespace creation on misaligned addresses 2019-08-28 10:33:13 -07:00
nvme nvme-rdma: Fix max_hw_sectors calculation 2019-09-25 12:53:14 -07:00
nvmem nvmem: Use the same permissions for eeprom as for nvmem 2019-07-30 18:22:20 +02:00
of arm64 updates for 5.4: 2019-09-16 14:31:40 -07:00
opp pci-v5.3-changes 2019-07-15 20:44:49 -07:00
oprofile
parisc parisc: Disable HP HSC-PCI Cards to prevent kernel crash 2019-09-08 15:43:04 +02:00
parport It's been a relatively busy cycle for docs: 2019-07-09 12:34:26 -07:00
pci Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 11:42:15 -07:00
pcmcia pcmcia: db1xxx_ss: Mark expected switch fall-throughs 2019-08-09 19:53:04 -05:00
perf Merge branches 'for-next/52-bit-kva', 'for-next/cpu-topology', 'for-next/error-injection', 'for-next/perf', 'for-next/psci-cpuidle', 'for-next/rng', 'for-next/smpboot', 'for-next/tbi' and 'for-next/tlbi' into for-next/core 2019-08-30 12:46:12 +01:00
phy
pinctrl This is the bulk of changes in the GPIO subsystem for the 2019-09-16 14:06:50 -07:00
platform platform-drivers-x86 for v5.4-1 2019-09-16 19:59:10 -07:00
pnp docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
power power: supply: ab8500_charger: Mark expected switch fall-through 2019-08-20 19:43:33 -05:00
powercap x86/intel: Aggregate microserver naming 2019-08-28 11:29:32 +02:00
pps drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl 2019-07-16 19:23:24 -07:00
ps3
ptp
pwm pwm: Fallback to the static lookup-list when acpi_pwm_get fails 2019-08-08 13:17:38 +02:00
rapidio Merge branch 'akpm' (patches from Andrew) 2019-07-17 08:58:04 -07:00
ras RAS: Build debugfs.o only when enabled in Kconfig 2019-08-08 17:44:02 +02:00
regulator regulator: core: Fix error return for /sys access 2019-09-11 11:17:23 +01:00
remoteproc remoteproc updates for v5.3 2019-07-17 11:44:41 -07:00
reset ARM SCMI updates/fixes for v5.4 2019-08-14 20:46:38 +02:00
rpmsg
rtc docs: i2c: convert to ReST and add to driver-api bookset 2019-07-31 13:25:27 -06:00
s390 s390 updates for the 5.4 merge window 2019-09-17 14:04:43 -07:00
sbus
scsi block: centralize PI remapping logic to the block layer 2019-09-17 20:03:49 -06:00
sfi
sh
siox
slimbus
soc ARM: SoC driver updates for v5.4 2019-09-16 15:52:38 -07:00
soundwire soundwire: fix regmap dependencies and align with other serial links 2019-08-09 10:20:40 +05:30
spi It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
spmi
ssb
staging It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
target scsi: target: tcmu: avoid use-after-free after command timeout 2019-08-14 21:58:55 -04:00
tc
tee
thermal int340X/processor_thermal_device: Fix proc_thermal_rapl_remove() 2019-07-23 09:36:07 +02:00
thunderbolt Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
tty ARM: SoC platform updates for v5.4 2019-09-16 15:48:14 -07:00
uio
usb ARM: SoC platform updates for v5.4 2019-09-16 15:48:14 -07:00
uwb
vfio iommu: Introduce struct iommu_iotlb_gather for batching TLB flushes 2019-07-24 13:35:27 +01:00
vhost Revert "vhost: block speculation of translated descriptors" 2019-09-14 15:21:51 -04:00
video ARM: SoC driver updates for v5.4 2019-09-16 15:52:38 -07:00
virt
virtio virtio_ring: fix unmap of indirect descriptors 2019-09-09 10:43:15 -04:00
visorbus
vlynq
vme
w1 docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
watchdog ARM: SoC platform updates for v5.4 2019-09-16 15:48:14 -07:00
xen swiotlb: Split size parameter to map/unmap APIs 2019-09-11 12:34:29 +02:00
zorro
Kconfig ide: remove the sgiioc4 driver 2019-08-16 11:33:56 -07:00
Makefile drivers: remove the SGI SN2 IOC3 base support 2019-08-16 11:33:57 -07:00