Michael Margolin 486055f5e0 RDMA/core: Fix best page size finding when it can cross SG entries ... A single scatter-gather entry is limited by a 32 bits "length" field that is practically 4GB - PAGE_SIZE. This means that even when the memory is physically contiguous, we might need more than one entry to represent it. Additionally when using dmabuf, the sg_table might be originated outside the subsystem and optimized for other needs. For instance an SGT of 16GB GPU continuous memory might look like this: (a real life example) dma_address 34401400000, length fffff000 dma_address 345013ff000, length fffff000 dma_address 346013fe000, length fffff000 dma_address 347013fd000, length fffff000 dma_address 348013fc000, length 4000 Since ib_umem_find_best_pgsz works within SG entries, in the above case we will result with the worst possible 4KB page size. Fix this by taking into consideration only the alignment of addresses of real discontinuity points rather than treating SG entries as such, and adjust the page iterator to correctly handle cross SG entry pages. There is currently an assumption that drivers do not ask for pages bigger than maximal DMA size supported by their devices. Reviewed-by: Firas Jahjah <firasj@amazon.com> Reviewed-by: Yonatan Nachum <ynachum@amazon.com> Signed-off-by: Michael Margolin <mrgolin@amazon.com> Link: https://patch.msgid.link/20250217141623.12428-1-mrgolin@amazon.com Signed-off-by: Leon Romanovsky <leon@kernel.org>		2025-02-19 07:17:39 -05:00
..
accel	Mainly individually changelogged singleton patches. The patch series in	2025-01-26 17:50:53 -08:00
accessibility
acpi	21 hotfixes. 8 are cc:stable and the remainder address post-6.13 issues.	2025-02-01 09:49:20 -08:00
amba
android	Char/Misc/IIO driver updates for 6.14-rc1	2025-01-27 16:51:51 -08:00
ata	ata changes for 6.14 part2	2025-01-31 11:07:56 -08:00
atm
auxdisplay	auxdisplay for v6.14-1	2025-01-24 08:03:52 -08:00
base	RISC-V Patches for the 6.14 Merge Window, Part 1	2025-01-31 15:13:25 -08:00
bcma
block	block-6.14-20250131	2025-01-31 11:49:30 -08:00
bluetooth	Bluetooth: btnxpuart: Fix glitches seen in dual A2DP streaming	2025-01-29 15:23:49 -05:00
bus	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
cache
cdrom	treewide: const qualify ctl_tables where applicable	2025-01-28 13:48:37 +01:00
cdx
char	treewide: const qualify ctl_tables where applicable	2025-01-28 13:48:37 +01:00
clk	The various patchsets are summarized below. Plus of course many	2025-01-26 18:36:23 -08:00
clocksource
comedi
connector
counter
cpufreq	cpufreq: airoha: Depends on OF	2025-01-29 10:56:11 +01:00
cpuidle	More power management updates for 6.14-rc1	2025-01-30 15:10:34 -08:00
crypto	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
cxl	cxl changes for v6.14	2025-01-29 11:23:22 -08:00
dax
dca
devfreq
dio
dma	dmaengine updates for v6.14	2025-01-29 14:29:57 -08:00
dma-buf
dpll
edac	- The first part of a restructuring of AMD's representation of a northbridge	2025-01-21 09:38:52 -08:00
eisa
extcon
firewire	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
firmware	sound fixes for 6.14-rc1	2025-01-31 09:17:02 -08:00
fpga
fsi
gnss
gpio	gpio fixes for v6.14-rc1	2025-01-30 10:19:30 -08:00
gpu	drm fixes for 6.14-rc1	2025-01-31 15:45:41 -08:00
greybus
hid	pci-v6.14-changes	2025-01-25 16:03:40 -08:00
hsi
hte
hv	treewide: const qualify ctl_tables where applicable	2025-01-28 13:48:37 +01:00
hwmon	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
hwspinlock
hwtracing	KVM/arm64 updates for 6.14	2025-01-28 09:01:36 -08:00
i2c	i2c-for-6.14-rc1-take2	2025-01-30 17:43:36 -08:00
i3c	I3C for 6.14	2025-01-24 15:48:01 -08:00
idle	Power management updates for 6.14-rc1	2025-01-22 11:16:14 -08:00
iio	IIO: 2nd set of fixes for the 6.13 cycle.	2025-01-16 13:46:08 +01:00
infiniband	RDMA/core: Fix best page size finding when it can cross SG entries	2025-02-19 07:17:39 -05:00
input	platform-drivers-x86 for v6.14-1	2025-01-24 07:18:39 -08:00
interconnect	interconnect changes for 6.14	2025-01-16 14:01:40 +01:00
iommu	hyperv-next for v6.14	2025-01-25 09:22:55 -08:00
ipack
irqchip	Merge tag 'irq-core-2025-01-21' into loongarch-next	2025-01-25 18:15:32 +08:00
isdn
leds	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
macintosh	The various patchsets are summarized below. Plus of course many	2025-01-26 18:36:23 -08:00
mailbox	mailbox: th1520: Fix memory corruption due to incorrect array size	2025-01-18 16:20:55 -06:00
mcb
md	block-6.14-20250131	2025-01-31 11:49:30 -08:00
media	[GIT PULL for v6.14] media updates	2025-02-01 09:15:01 -08:00
memory
memstick	Char/Misc/IIO driver updates for 6.14-rc1	2025-01-27 16:51:51 -08:00
message
mfd	- Fix race in device_node_get_regmap() using more extensive locking.	2025-01-22 09:16:02 -08:00
misc	treewide: const qualify ctl_tables where applicable	2025-01-28 13:48:37 +01:00
mmc	MMC core:	2025-01-22 10:39:17 -08:00
most
mtd	block-6.14-20250131	2025-01-31 11:49:30 -08:00
mux
net	RDMA/mana_ib: polling of CQs for GSI/UD	2025-02-04 08:27:03 -05:00
nfc	nfc: mrvl: Don't use "proxy" headers	2025-01-18 17:10:05 -08:00
ntb	PCI: Remove devres from pci_intx()	2025-01-18 14:38:49 -06:00
nubus
nvdimm
nvme	block: force noio scope in blk_mq_freeze_queue	2025-01-31 07:20:08 -07:00
nvmem
of	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
opp	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
parisc
parport
pci	PCI: Restore original INTX_DISABLE bit by pcim_intx()	2025-01-27 12:55:12 -06:00
pcmcia
peci
perf	treewide: const qualify ctl_tables where applicable	2025-01-28 13:48:37 +01:00
phy	phy-for-6.14	2025-01-29 14:32:38 -08:00
pinctrl	Pin control changes for the v6.14 kernel cycle:	2025-01-24 07:38:50 -08:00
platform	USB / Thunderbolt driver updates for 6.14-rc1	2025-01-27 16:29:16 -08:00
pmdomain	pmdomain: airoha: Fix compilation error with Clang-20 and Thumb2 mode	2025-01-21 10:45:24 +01:00
pnp
power	power supply and reset changes for the 6.14 series	2025-01-27 15:37:16 -08:00
powercap
pps
ps3
ptp	First batch of fixes for 6.14. Nothing really stands out,	2025-01-30 12:24:20 -08:00
pwm	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
rapidio
ras
regulator	regulator: Fixes for v6.14	2025-01-29 11:56:55 -08:00
remoteproc
reset	soc: driver updates for 6.14	2025-01-24 14:56:59 -08:00
rpmsg
rtc	RTC for 6.13	2025-01-30 17:50:02 -08:00
s390	more s390 updates for 6.14 merge window	2025-01-30 10:48:17 -08:00
sbus
scsi	block-6.14-20250131	2025-01-31 11:49:30 -08:00
sh
siox
slimbus	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
soc	[GIT PULL for v6.14] media updates	2025-01-25 15:59:46 -08:00
soundwire	soundwire updates for 6.14	2025-01-29 14:38:19 -08:00
spi	spi: Fix for v6.14	2025-01-24 16:12:12 -08:00
spmi	spmi: hisi-spmi-controller: Drop duplicated OF node assignment in spmi_controller_probe()	2025-01-17 12:58:49 +01:00
ssb
staging	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
target	SCSI misc on 20250126	2025-01-26 16:12:44 -08:00
tc
tee
thermal	Merge branch 'thermal-intel'	2025-01-20 13:10:15 +01:00
thunderbolt	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
tty	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
ufs	block-6.14-20250131	2025-01-31 11:49:30 -08:00
uio	Char/Misc/IIO driver updates for 6.14-rc1	2025-01-27 16:51:51 -08:00
usb	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
vdpa	virtio: features, fixes, cleanups	2025-01-27 15:26:06 -08:00
vfio	VFIO updates for v6.14-rc1	2025-01-28 14:16:46 -08:00
vhost	vhost/net: Set num_buffers for virtio 1.0	2025-01-27 09:39:25 -05:00
video	fbdev fixes and updates for 6.14-rc1:	2025-01-24 11:32:13 -08:00
virt	- A segmented Reverse Map table (RMP) is a across-nodes distributed	2025-01-21 09:00:31 -08:00
virtio	virtio: features, fixes, cleanups	2025-01-27 15:26:06 -08:00
w1
watchdog	linux-watchdog 6.14-rc1 tag	2025-01-25 16:19:10 -08:00
xen	xen: branch for v6.14-rc1	2025-01-29 11:39:20 -08:00
zorro
Kconfig
Makefile