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Bobby Eshleman b27a8560ee net: devmem: allow rx-page-size > PAGE_SIZE per dmabuf binding 
Every devmem dmabuf binding today hands the page_pool PAGE_SIZE niovs.
This caps a single RX descriptor at PAGE_SIZE, burning CPU on buffer
churn for large flows.

Add a bind-time netlink attribute, NETDEV_A_DMABUF_RX_PAGE_SIZE, that
lets userspace request a larger niov size. The value must be a power of
two >= PAGE_SIZE.

The TX path is changed to always pass PAGE_SIZE.

Measurements:
Setup: kperf in devmem RX/TX cuda mode, 4 flows, 64 MB messages, 60s,
dctcp, num-rx-queues=4, dmabuf-rx/tx-size-mb=2048, 10 runs per niov
size, mlx5.

CPU Util:

   niov        net sirq %        net idle %         app sys %        app idle %
  -----  ----------------  ----------------  ----------------  ----------------
     4K   62.38 +/-  8.27   33.40 +/-  7.51   54.15 +/- 10.23   43.67 +/- 10.53
    16K   58.91 +/-  5.35   35.23 +/-  5.88   41.05 +/-  8.87   56.42 +/-  9.24
    32K   64.12 +/-  0.68   31.09 +/-  1.48   44.54 +/-  3.51   52.63 +/-  3.65
    64K   54.69 +/-  5.54   39.67 +/-  5.81   35.47 +/-  3.11   61.97 +/-  3.27

RX app sys % drops ~19% from 4K to 64K.

Throughput:

   niov       RX dev Gbps   RX flow avg Gbps
  -----  ----------------  -----------------
     4K  300.63 +/- 53.21    75.16 +/- 13.30
    16K  321.35 +/- 28.20    80.34 +/-  7.05
    32K  347.63 +/-  2.20    86.91 +/-  0.55
    64K  332.11 +/- 14.26    83.03 +/-  3.56

Throughput seems to increase, but the stdev is pretty wide so could just
be noise.

kperf support (not yet merged):
8837577f92

Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260805-tcpdm-large-niovs-v8-1-3e0225e2808c@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-07 18:32:39 -07:00
..
android
binder: fix trivial typo in uapi header
2025-12-29 11:58:52 +01:00
byteorder
…
can
can: netlink: add PWM netlink interface
2025-11-26 11:20:43 +01:00
cifs
…
counter
counter: microchip-tcb-capture: Add capture extensions for registers RA/RB
2025-03-08 08:57:18 +09:00
dvb
media: dvb: Fix dtvs_stats packing.
2024-04-15 13:42:38 +02:00
genwqe
…
hdlc
…
hsi
…
iio
iio: core: Add IIO_COVERAGE channel type
2026-05-31 11:01:50 +01:00
io_uring
io_uring/zcrx: rename notif to event
2026-07-22 09:48:42 -06:00
media
media: uapi: mali-c55-config: Remove version identifier
2026-01-06 10:14:13 +01:00
misc
…
mmc
…
netfilter
netfilter: nf_conntrack_expect: use conntrack GC to reap expectations
2026-06-21 00:18:27 +02:00
netfilter_arp
…
netfilter_bridge
netfilter: ebtables: replace zero-length array members
2023-08-22 15:13:20 +02:00
netfilter_ipv4
…
netfilter_ipv6
netfilter: ip6t_srh: fix UAPI kernel-doc comments format
2025-11-28 00:07:19 +00:00
nfsd
NFSD/export: Add sign_fh export option
2026-03-29 21:25:09 -04:00
raid
md: allow configuring logical block size
2025-11-11 11:20:15 +08:00
sched
sched/deadline: Clarify nanoseconds in uapi
2024-09-11 11:23:56 +02:00
spi
spi: Enable controllers to extend the SPI protocol with MOSI idle configuration
2024-07-29 01:19:51 +01:00
sunrpc
…
surface_aggregator
…
tc_act
net: sched: Annotate struct tc_pedit with __counted_by
2024-02-19 10:58:24 +00:00
tc_ematch
…
usb
USB: uapi: add BULK_MAX_PACKET_UPDATE
2026-03-30 16:55:36 +02:00
a.out.h
…
acct.h
…
acrn.h
virt: acrn: split acrn_mmio_dev_res out of acrn_mmiodev
2025-11-26 15:09:24 +01:00
adb.h
…
adfs_fs.h
…
affs_hardblocks.h
block: change all __u32 annotations to __be32 in affs_hardblocks.h
2023-06-20 14:28:17 -06:00
agpgart.h
…
aio_abi.h
…
am437x-vpfe.h
…
amt.h
…
apm_bios.h
…
arcfb.h
…
arm_sdei.h
…
aspeed-lpc-ctrl.h
…
aspeed-p2a-ctrl.h
…
aspeed-video.h
media: aspeed: Allow to capture from SoC display (GFX)
2025-08-29 11:04:02 +02:00
atalk.h
…
atm.h
…
atmapi.h
…
atmbr2684.h
atm: uapi: fix spelling typos in comments
2022-12-22 18:18:37 -08:00
atmdev.h
atm: remove orphaned uAPI for deleted drivers, protocols and SVCs
2026-06-16 08:53:53 -07:00
atmioc.h
…
atmppp.h
…
atmsap.h
…
audit.h
audit: fix coding style issues
2026-03-05 22:16:08 -05:00
auto_dev-ioctl.h
autofs: use flexible array in ioctl structure
2023-05-30 16:42:00 -07:00
auto_fs4.h
…
auto_fs.h
autofs: add per dentry expire timeout
2024-08-30 08:22:36 +02:00
auxvec.h
uapi/auxvec: Define AT_HWCAP3 and AT_HWCAP4 aux vector, entries
2024-02-16 12:42:59 +11:00
ax25.h
…
batadv_packet.h
batman-adv: uapi: keep kernel-doc in struct member order
2026-06-05 09:12:08 +02:00
batman_adv.h
batman-adv: Use consistent name for mesh interface
2025-02-22 11:36:22 +01:00
bcm933xx_hcs.h
…
bfs_fs.h
…
binfmts.h
…
bits.h
uapi: bitops: use UAPI-safe variant of BITS_PER_LONG again (2)
2025-07-08 10:23:13 -04:00
blk-crypto.h
blk-crypto: add ioctls to create and prepare hardware-wrapped keys
2025-02-10 09:54:19 -07:00
blkdev.h
block: implement async io_uring discard cmd
2024-09-11 10:45:28 -06:00
blkpg.h
…
blktrace_api.h
blktrace: add support for REQ_OP_WRITE_ZEROES tracing
2025-11-03 08:30:56 -07:00
blkzoned.h
block: make the new blkzoned UAPI constants discoverable
2026-01-21 07:47:44 -07:00
bpf_common.h
…
bpf_perf_event.h
…
bpf.h
bpf: Add support to specify uprobe_multi target via file descriptor
2026-06-14 17:24:25 -07:00
bpqether.h
…
bsg.h
bsg: add bsg_uring_cmd uapi structure
2026-03-19 11:38:24 -06:00
bt-bmc.h
…
btf.h
bpf: Extend BTF UAPI vlen, kinds to use unused bits
2026-04-20 17:52:48 -07:00
btrfs_tree.h
btrfs: tree-checker: introduce checks for FREE_SPACE_INFO
2026-04-07 18:56:01 +02:00
btrfs.h
btrfs: declare btrfs_ioctl_search_args_v2::buf as __u8
2026-07-14 07:02:39 +02:00
cachefiles.h
…
can.h
can: canxl: support Remote Request Substitution bit access
2025-02-19 11:10:54 +01:00
capability.h
uapi: fix broken link in linux/capability.h
2025-07-04 19:21:53 -05:00
cciss_defs.h
…
cciss_ioctl.h
…
ccs.h
…
cdrom.h
…
cec-funcs.h
media: include/uapi/linux/cec*.h: add CEC LIP support
2026-05-19 17:53:04 +02:00
cec.h
media: include/uapi/linux/cec*: clarify which msgs are CEC 2.0
2026-05-19 17:53:05 +02:00
cfm_bridge.h
…
cgroupstats.h
cgroup: remove obsolete comment above struct cgroupstats
2023-07-14 08:43:49 -10:00
chio.h
…
close_range.h
…
cn_proc.h
connector: Fix invalid conversion in cn_proc.h
2024-05-24 10:36:55 +01:00
coda.h
…
coff.h
…
comedi.h
comedi: Fix getting range information for subdevices 16 to 255
2026-01-16 16:42:15 +01:00
connector.h
…
const.h
uapi: Provide DIV_ROUND_CLOSEST()
2026-03-18 09:59:57 +00:00
coredump.h
coredump: allow for flexible coredump handling
2025-06-12 14:00:18 +02:00
coresight-stm.h
…
counter.h
counter: add direction change event
2025-02-05 13:22:04 +09:00
cramfs_fs.h
…
cryptouser.h
crypto: sig - Introduce sig_alg backend
2024-10-05 13:22:04 +08:00
cuda.h
…
cxl_mem.h
cxl/mbox: Add Clear Log mailbox command
2024-04-30 08:48:10 -07:00
cyclades.h
…
cycx_cfm.h
…
dcbnl.h
net: dcb: add new rewrite table
2023-01-20 09:33:22 +00:00
dccp.h
…
dev_energymodel.h
PM: EM: Add dump to get-perf-domains in the EM YNL spec
2026-01-09 21:44:46 +01:00
devlink.h
devlink: Add parent dev to devlink API
2026-07-07 11:31:26 +02:00
dlm_device.h
…
dlm_plock.h
fs: dlm: allow to F_SETLKW getting interrupted
2023-07-20 17:24:57 -05:00
dlm.h
dlm: introduce DLM_LSFL_SOFTIRQ_SAFE
2024-06-11 12:57:49 -05:00
dlmconstants.h
fs: dlm: remove deprecated code parts
2023-03-06 15:49:07 -06:00
dm-ioctl.h
dm mpath: Interface for explicit probing of active paths
2025-05-04 11:35:06 +02:00
dm-log-userspace.h
…
dma-buf.h
dma-buf: Include ioctl.h in UAPI header
2026-03-03 08:55:39 +01:00
dma-heap.h
dma-buf: align fd_flags and heap_flags with dma_heap_allocation_data
2024-06-05 14:52:15 +05:30
dns_resolver.h
…
dpll.h
dpll: add DPLL_PIN_TYPE_INT_NCO pin type
2026-07-06 14:45:05 +02:00
dqblk_xfs.h
…
drbd_genl.h
drbd: replace genl_magic with explicit netlink serialization
2026-05-08 19:23:23 -06:00
drbd_limits.h
drbd: clean up UAPI headers
2026-05-13 07:53:43 -06:00
drbd.h
drbd: clean up UAPI headers
2026-05-13 07:53:43 -06:00
dw100.h
…
edd.h
…
efs_fs_sb.h
…
elf-em.h
…
elf-fdpic.h
binfmt_elf_fdpic: support 64-bit systems
2023-08-23 14:17:42 -07:00
elf.h
riscv/ptrace: expose riscv CFI status and state via ptrace and in core files
2026-01-29 02:38:40 -07:00
errno.h
…
errqueue.h
net-timestamp: COMPLETION timestamp on packet tx completion
2025-03-25 12:48:05 -04:00
erspan.h
…
ethtool_netlink_generated.h
net: ethtool: add ethtool COALESCE_RX_CQE_FRAMES/NSECS
2026-03-18 20:01:10 -07:00
ethtool_netlink.h
netlink: specs: add the multicast group name to spec
2025-06-25 15:24:13 -07:00
ethtool.h
ethtool: link 10000baseCR to SFF-8431, Appendix-E SFP+ DA
2026-07-17 12:52:21 +02:00
eventfd.h
eventfd: add a uapi header for eventfd userspace APIs
2023-06-15 14:55:15 +02:00
eventpoll.h
eventpoll: Add epoll ioctl for epoll_params
2024-02-14 11:01:01 +00:00
exfat.h
exfat: Implement sops->shutdown and ioctl
2024-09-18 07:40:56 +09:00
ext4.h
ext4: fix ext4_tune_sb_params padding
2026-01-18 11:22:53 -05:00
f2fs.h
f2fs: add ioctl to get IO priority hint
2025-02-12 02:29:30 +00:00
fadvise.h
…
falloc.h
fs: introduce FALLOC_FL_WRITE_ZEROES to fallocate
2025-06-23 12:45:13 +02:00
fanotify.h
fanotify: notify on mount attach and detach
2025-02-05 17:21:07 +01:00
fb.h
video: fb: Fix typo in comment in fb.h
2025-10-28 22:59:19 +01:00
fcntl.h
vfs: use UAPI types for new struct delegation definition
2025-12-05 13:57:39 +01:00
fd.h
…
fdreg.h
…
fib_rules.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
fiemap.h
fiemap: use kernel-doc includes in fiemap docbook
2024-12-22 11:29:50 +01:00
filter.h
…
firewire-cdev.h
drivers: firewire: firewire-cdev.h: fix identation on a kernel-doc markup
2025-03-04 09:47:36 -07:00
firewire-constants.h
…
fou.h
tools: ynl-gen: add regeneration comment
2025-11-25 19:20:42 -08:00
fpga-dfl.h
…
fs.h
fs: Clarify FS_CASEFOLD_FL semantics in UAPI header
2026-05-15 17:49:23 +02:00
fscrypt.h
fscrypt: add support for hardware-wrapped keys
2025-04-08 19:32:11 -07:00
fsi.h
fsi: sbefifo: Add configurable in-command timeout
2023-08-09 15:43:27 +09:30
fsl_hypervisor.h
virt: fsl_hypervisor: fix header kernel-doc warnings
2026-02-27 07:28:08 +01:00
fsl_mc.h
…
fsmap.h
…
fsverity.h
…
fuse.h
fuse: add prune notification
2025-09-05 09:11:28 +02:00
futex.h
futex: Add support for unlocking robust futexes
2026-06-03 11:38:51 +02:00
gameport.h
…
gen_stats.h
…
genetlink.h
…
gfs2_ondisk.h
…
gpib_ioctl.h
staging: gpib: Destage gpib
2025-11-24 17:52:11 +01:00
gpib.h
staging: gpib: Destage gpib
2025-11-24 17:52:11 +01:00
gpio.h
gpio: uapi: clarify default_values being logical
2024-02-15 08:44:57 +01:00
gsmmux.h
tty: n_gsm: add copyright Siemens Mobility GmbH
2023-10-27 09:21:13 +02:00
gtp.h
gtp: add IPv6 support
2024-05-07 01:35:57 +02:00
handshake.h
tools: ynl-gen: add regeneration comment
2025-11-25 19:20:42 -08:00
hash_info.h
crypto: FIPS 202 SHA-3 register in hash info for IMA
2023-10-27 18:04:30 +08:00
hdlc.h
…
hdreg.h
…
hid.h
…
hiddev.h
…
hidraw.h
HID: hidraw: tighten ioctl command parsing
2025-09-17 11:37:23 +02:00
hpet.h
…
hsr_netlink.h
…
hw_breakpoint.h
Move bp_type_idx to include/linux/hw_breakpoint.h
2023-03-10 21:05:16 +01:00
hyperv.h
hyper-v: Mark inner union in hv_kvp_exchg_msg_value as packed
2026-01-16 15:00:54 -07:00
i2c-dev.h
…
i2c.h
i2c: i2c.h: fix a bad kernel-doc line
2025-11-29 21:39:58 +09:00
i2o-dev.h
…
i8k.h
hwmon: (dell-smm) Add support for automatic fan mode
2025-09-24 07:50:09 -07:00
icmp.h
…
icmpv6.h
netfilter: conntrack: fix ct-state for ICMPv6 Multicast Router Discovery
2024-05-06 11:13:56 +02:00
idxd.h
dmaengine: idxd: uapi: use UAPI types
2025-12-23 12:29:14 +05:30
if_addr.h
net: ipv4: report multicast group user count
2026-07-03 08:50:43 +02:00
if_addrlabel.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
if_alg.h
crypto: af_alg - Annotate struct af_alg_iv with __counted_by
2026-01-14 14:43:18 -08:00
if_arcnet.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
if_arp.h
…
if_bonding.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
if_bridge.h
bridge: uapi: Add neigh_forward_grat netlink attributes
2026-05-14 12:42:11 +02:00
if_eql.h
…
if_ether.h
if_ether.h: add 802.1AC, warn about GRE 0x00FE
2026-06-08 19:13:53 -07:00
if_fc.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
if_fddi.h
…
if_hippi.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
if_infiniband.h
…
if_link.h
bonding: 3ad: add lacp_strict configuration knob
2026-06-10 07:53:26 -07:00
if_ltalk.h
…
if_macsec.h
…
if_packet.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
if_phonet.h
…
if_plip.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
if_ppp.h
…
if_pppol2tp.h
…
if_pppox.h
pppoe: remove kernel-mode relay support
2026-02-26 11:41:00 +01:00
if_slip.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
if_team.h
tools: ynl-gen: add regeneration comment
2025-11-25 19:20:42 -08:00
if_tun.h
tun/tap: add IFF_BACKPRESSURE flag
2026-08-07 17:29:15 -07:00
if_tunnel.h
pfcp: always set pfcp metadata
2024-04-01 10:49:28 +01:00
if_vlan.h
…
if_x25.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
if_xdp.h
net: xsk: introduce XDP_MAX_TX_SKB_BUDGET setsockopt
2025-07-10 14:48:29 +02:00
if.h
…
ife.h
…
igmp.h
…
ila.h
…
in6.h
uapi: in6: restore visibility of most IPv6 socket options
2025-06-10 14:41:14 -07:00
in_route.h
ipv4: Fix user space build failure due to header change
2024-09-04 16:40:33 -07:00
in.h
include: uapi: protocol number and packet structs for AGGFRAG in ESP
2024-12-05 10:01:09 +01:00
inet_diag.h
inet_diag: report delayed ack timer information
2026-03-06 16:32:26 -08:00
inotify.h
inotify: Fix misspelling of "writable"
2024-03-06 13:13:00 +01:00
input-event-codes.h
Input: add keycodes for contextual AI usages (HUTRR119)
2026-03-29 22:02:11 +02:00
input.h
Input: add FF_HAPTIC effect type
2025-09-15 14:32:54 +02:00
io_uring.h
io_uring/kbuf: support min length left for incremental buffers
2026-04-28 16:08:56 -06:00
ioam6_genl.h
uapi: ioam6: API for netlink multicast events
2024-02-28 11:19:41 +00:00
ioam6_iptunnel.h
net: ipv6: ioam6: new feature tunsrc
2024-08-22 10:45:12 +02:00
ioam6.h
ipv6: ioam: Replace 0-length array with flexible array
2023-01-06 19:22:53 -08:00
ioctl.h
…
iommufd.h
iommufd: Clarify IOAS_MAP_FILE dma-buf support
2026-06-12 10:10:34 -03:00
ioprio.h
block: uapi: Fix compilation errors using ioprio.h with C++
2023-08-15 10:06:49 -06:00
ip6_tunnel.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
ip_vs.h
…
ip.h
include: uapi: protocol number and packet structs for AGGFRAG in ESP
2024-12-05 10:01:09 +01:00
ipc.h
…
ipmi_bmc.h
…
ipmi_msgdefs.h
…
ipmi_ssif_bmc.h
…
ipmi.h
…
ipsec.h
xfrm: add generic iptfs defines and functionality
2024-12-05 10:01:28 +01:00
ipv6_route.h
…
ipv6.h
ipv6: add force_forwarding sysctl to enable per-interface forwarding
2025-07-25 13:06:19 -07:00
irqnr.h
…
iso_fs.h
…
isst_if.h
platform/x86: ISST: isst_if.h: fix all kernel-doc warnings
2025-11-06 14:19:20 +02:00
ivtv.h
media: include: update Hans Verkuil's email address
2025-09-09 15:58:56 +02:00
ivtvfb.h
…
jffs2.h
…
joystick.h
…
kcm.h
…
kcmp.h
…
kcov.h
…
kd.h
Revert "VT: Use macros to define ioctls"
2024-06-01 07:28:21 +02:00
kdev_t.h
…
kernel-page-flags.h
mm: remove PG_error
2024-09-01 20:26:05 -07:00
kernel.h
…
kexec.h
x86/kexec: carry forward the boot DTB on kexec
2025-09-13 17:32:43 -07:00
keyboard.h
vt: add KT_CSI keysym type for modifier-aware CSI sequences
2026-03-12 15:07:51 +01:00
keyctl.h
…
kfd_ioctl.h
drm/amdkfd: bump KFD ioctl minor version to 1.23
2026-05-11 15:55:57 -04:00
kfd_sysfs.h
drm/amdkfd: allow debug subscription to lds violations on gfx 1250
2025-12-16 13:23:17 -05:00
kvm_para.h
…
kvm.h
KVM: s390: Add capability to support 2G hugepages
2026-06-09 17:30:57 +02:00
l2tp.h
…
landlock.h
landlock: Add API support and docs for the quiet flags
2026-06-14 20:17:19 +02:00
libc-compat.h
uapi: libc-compat: remove ipx leftovers
2024-09-12 20:28:46 -07:00
limits.h
…
lirc.h
…
liveupdate.h
liveupdate: Document that retrieve failure is permanent
2026-06-11 15:49:51 +03:00
llc.h
llc: Add SPDX id lines to some llc source files
2026-05-26 17:26:57 -07:00
loadpin.h
…
lockd_netlink.h
tools: ynl-gen: add regeneration comment
2025-11-25 19:20:42 -08:00
loop.h
…
lp.h
…
lsm.h
lsm: add IPE lsm
2024-08-19 22:36:26 -04:00
lwtunnel.h
…
magic.h
fs: add immutable rootfs
2026-01-12 16:52:09 +01:00
major.h
…
map_benchmark.h
dma-mapping: benchmark: add support for dma_map_sg
2026-03-04 11:22:05 +01:00
map_to_7segment.h
…
map_to_14segment.h
…
matroxfb.h
…
max2175.h
…
mctp.h
net: mctp: add gateway routing support
2025-07-08 12:39:24 +02:00
mdio.h
net: phy: c45: add setup and read master/slave helpers
2026-07-31 18:22:48 -07:00
media-bus-format.h
media: uapi: Add 20-bit bayer formats
2025-11-14 15:48:49 +01:00
media.h
media: uapi: Use unsigned int values for assigning bits in u32 fields
2023-05-25 16:21:22 +02:00
mei_uuid.h
mei: Move uuid.h to the MEI namespace
2023-03-23 17:25:46 +01:00
mei.h
mei: fix spellos in mei.h
2023-12-15 17:01:30 +01:00
membarrier.h
sched/membarrier: Introduce MEMBARRIER_CMD_GET_REGISTRATIONS
2023-01-07 11:29:29 +01:00
memfd.h
mm/memfd: add MFD_NOEXEC_SEAL and MFD_EXEC
2023-01-18 17:12:37 -08:00
mempolicy.h
mm/mempolicy: fix mpol_rebind_nodemask() for MPOL_F_NUMA_BALANCING
2026-01-26 20:02:32 -08:00
mii.h
net: phy: qcom: at803x: Use the correct bit to disable extended next page
2026-04-13 14:36:22 -07:00
minix_fs.h
…
mman.h
mm: add MAP_DROPPABLE for designating always lazily freeable mappings
2024-07-19 20:22:12 +02:00
mmtimer.h
…
module_signature.h
module: Move 'struct module_signature' to UAPI
2026-03-24 21:42:37 +00:00
module.h
…
mount.h
mount: add FSMOUNT_NAMESPACE
2026-03-12 13:33:54 +01:00
mpls_iptunnel.h
…
mpls.h
…
mptcp_pm.h
mptcp: fix kdoc warnings
2026-02-06 20:35:06 -08:00
mptcp.h
mptcp: pm: ignore unknown endpoint flags
2025-12-08 23:54:02 -08:00
mqueue.h
…
mroute6.h
…
mroute.h
…
mrp_bridge.h
…
msdos_fs.h
…
msg.h
…
mshv.h
mshv_vtl: Fix vmemmap_shift exceeding MAX_FOLIO_ORDER
2026-04-14 04:44:31 +00:00
mtio.h
…
nbd-netlink.h
…
nbd.h
nbd: implement the WRITE_ZEROES command
2024-09-06 08:31:40 -06:00
ncsi.h
…
ndctl.h
…
neighbour.h
neighbor: Add NTF_EXT_VALIDATED flag for externally validated entries
2025-06-30 18:14:23 -07:00
net_dropmon.h
uapi: net_dropmon: drop unused is_drop_point_hw macro
2025-06-25 15:35:20 -07:00
net_namespace.h
…
net_shaper.h
tools: ynl-gen: add regeneration comment
2025-11-25 19:20:42 -08:00
net_tstamp.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
net.h
…
netconf.h
ipv6: add force_forwarding sysctl to enable per-interface forwarding
2025-07-25 13:06:19 -07:00
netdev.h
net: devmem: allow rx-page-size > PAGE_SIZE per dmabuf binding
2026-08-07 18:32:39 -07:00
netdevice.h
…
netfilter_arp.h
…
netfilter_bridge.h
include: uapi: netfilter_bridge.h: Cover for musl libc
2026-02-17 15:04:20 +01:00
netfilter_ipv4.h
netfilter: uapi: Use UAPI definition of INT_MAX and INT_MIN
2026-01-17 15:24:05 -08:00
netfilter_ipv6.h
netfilter: uapi: Use UAPI definition of INT_MAX and INT_MIN
2026-01-17 15:24:05 -08:00
netfilter.h
…
netlink_diag.h
net: add UAPI to the header guard in various network headers
2025-04-17 19:04:50 -07:00
netlink.h
netlink: add variable-length / auto integers
2023-10-20 11:43:35 +01:00
nexthop.h
net: nexthop: add NHA_DST_PORT for fdb nexthops
2026-07-30 16:09:22 -07:00
nfc.h
NFC: fix header file kernel-doc warnings
2026-02-27 19:21:56 -08:00
nfs2.h
…
nfs3.h
…
nfs4_mount.h
…
nfs4.h
nfsd: rework NFS4_SHARE_WANT_* flag handling
2025-01-21 15:30:01 -05:00
nfs_fs.h
…
nfs_idmap.h
…
nfs_mount.h
…
nfs.h
NFS: NFSERR_INVAL is not defined by NFSv2
2026-01-26 10:10:58 -05:00
nfsacl.h
…
nfsd_netlink.h
NFSD: Add NFSD_CMD_UNLOCK_EXPORT netlink command
2026-06-09 16:32:59 -04:00
nilfs2_api.h
nilfs2: fix missing struct keywords in nilfs2_api.h kernel-doc
2025-12-22 15:45:29 -08:00
nilfs2_ondisk.h
nilfs2: convert nilfs_super_block to kernel-doc
2025-12-22 15:45:29 -08:00
nitro_enclaves.h
…
nl80211-vnd-intel.h
wifi: nl80211: vendor-cmd: intel: fix a blank kernel-doc line warning
2025-11-25 10:34:55 +01:00
nl80211.h
wifi: cfg80211: Fragment per-link station stats in nl80211_dump_station()
2026-07-06 16:51:44 +02:00
npcm-video.h
media: uapi: Add controls for NPCM video driver
2023-09-27 09:40:02 +02:00
nsfs.h
nstree: add listns()
2025-11-03 17:41:18 +01:00
nsm.h
misc: Add Nitro Secure Module driver
2023-11-28 19:05:16 +00:00
ntsync.h
ntsync: Introduce alertable waits.
2025-01-08 13:18:11 +01:00
nubus.h
…
nvme_ioctl.h
…
nvram.h
…
omap3isp.h
…
omapfb.h
…
oom.h
…
openat2.h
openat2: new OPENAT2_REGULAR flag support
2026-05-21 15:33:47 +02:00
openvswitch.h
openvswitch: remove support for legacy tunnel types
2026-08-06 15:09:23 +02:00
ovpn.h
ovpn: add support for asymmetric peer IDs
2026-03-17 11:09:05 +01:00
packet_diag.h
…
papr_pdsm.h
powerpc/papr_scm: Move duplicate definitions to common header files
2024-04-25 12:37:12 -07:00
param.h
…
parport.h
ata: parport_pc: add 16-bit and 8-bit fast EPP transfer flags
2023-03-23 12:22:19 +09:00
patchkey.h
…
pci_regs.h
Merge tag 'iommu-updates-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
2026-06-17 12:24:50 -07:00
pci.h
PCI: trace: Add generic RAS tracepoint for hotplug event
2025-12-23 16:05:56 -06:00
pcitest.h
misc: pci_endpoint_test: Add BAR subrange mapping test case
2026-01-29 17:42:29 -06:00
perf_event.h
Merge tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2026-02-10 12:00:46 -08:00
personality.h
…
pfkeyv2.h
…
pfrut.h
ACPI: pfr_update: Fix the driver update version check
2025-08-20 15:30:36 +02:00
pg.h
…
phantom.h
…
phonet.h
…
pidfd.h
pidfds: add coredump_code field to pidfd_info
2026-03-23 16:29:15 +01:00
pkt_cls.h
net: sched: uapi: add more sanely named duplicate defines
2025-05-15 11:44:29 -07:00
pkt_sched.h
net/sched: netem: add per-impairment extended statistics
2026-05-14 11:41:30 +02:00
pktcdvd.h
pktcdvd: Get rid of custom printing macros
2023-06-07 14:26:09 -06:00
pmu.h
…
poll.h
…
posix_acl_xattr.h
…
posix_acl.h
…
posix_types.h
…
ppdev.h
…
ppp_defs.h
…
ppp-comp.h
…
ppp-ioctl.h
…
pps_gen.h
drivers pps: add PPS generators support
2025-01-08 13:18:09 +01:00
pps.h
pps: bump PPS device count
2026-05-19 09:32:27 -07:00
pr.h
block: add allocation size check in blkdev_pr_read_keys()
2025-12-17 07:35:22 -07:00
prctl.h
prctl: cfi: change the branch landing pad prctl()s to be more descriptive
2026-04-04 18:40:58 -06:00
psample.h
net: psample: allow using rate as probability
2024-07-05 17:45:47 -07:00
psci.h
firmware/psci: Add definitions for PSCI v1.3 specification
2024-10-24 16:30:33 -07:00
psp-dbc.h
crypto: ccp - Add support for getting and setting DBC parameters
2023-07-20 22:14:21 +12:00
psp-sev.h
include/psp-sev.h: fix structure member in comment
2026-03-14 14:03:19 +09:00
psp-sfs.h
crypto: ccp - Add AMD Seamless Firmware Servicing (SFS) driver
2025-09-17 12:17:05 +02:00
psp.h
psp: add new netlink cmd for dev-assoc and dev-disassoc
2026-06-12 18:31:32 -07:00
ptp_clock.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2025-09-25 11:00:59 -07:00
ptrace.h
ptrace: introduce PTRACE_SET_SYSCALL_INFO request
2025-05-11 17:48:15 -07:00
pwm.h
pwm: Add support for pwmchip devices for faster and easier userspace access
2025-07-07 08:39:33 +02:00
qemu_fw_cfg.h
…
qnx4_fs.h
…
qnxtypes.h
…
qrtr.h
…
quota.h
shmem: prepare shmem quota infrastructure
2023-08-09 09:15:39 +02:00
radeonfb.h
…
random.h
random: note that RNDGETPOOL was removed in 2.6.9-rc2
2024-07-19 20:22:48 +02:00
rds.h
…
reboot.h
…
remoteproc_cdev.h
…
resource.h
uapi/linux/resource.h: fix include
2023-12-20 19:26:31 -05:00
rfkill.h
…
rio_cm_cdev.h
…
rio_mport_cdev.h
…
rkisp1-config.h
media: rkisp1: Add support for CAC
2026-05-21 07:41:32 +02:00
romfs_fs.h
…
route.h
…
rpl_iptunnel.h
…
rpl.h
net: ipv6: rpl_iptunnel: Replace 0-length arrays with flexible arrays
2023-01-06 19:28:01 -08:00
rpmsg_types.h
…
rpmsg.h
rpmsg: char: Add RPMSG GET/SET FLOWCONTROL IOCTL support
2023-07-15 11:35:02 -07:00
rseq.h
rseq: Don't advertise time slice extensions if disabled
2026-05-01 21:32:20 +02:00
rtc.h
…
rtnetlink.h
rtnetlink: add RTEXT_FILTER_NAME_ONLY support
2026-05-12 18:30:26 -07:00
rxrpc.h
rxrpc: Add the security index for yfs-rxgk
2025-04-14 17:36:41 -07:00
sched.h
Merge tag 'vfs-7.1-rc1.mount.v2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2026-04-14 19:59:25 -07:00
scif_ioctl.h
…
screen_info.h
…
sctp.h
sctp: add weighted fair queueing stream scheduler
2023-03-09 11:31:44 +01:00
seccomp.h
seccomp: add the synchronous mode for seccomp_unotify
2023-07-17 16:08:08 -07:00
securebits.h
security: Add EXEC_RESTRICT_FILE and EXEC_DENY_INTERACTIVE securebits
2024-12-18 17:00:29 -08:00
sed-opal.h
sed-opal: Add STACK_RESET command
2026-03-31 07:04:00 -06:00
seg6_genl.h
…
seg6_hmac.h
…
seg6_iptunnel.h
seg6: add FIB table attribute for post-encap SID route lookup
2026-07-22 08:01:02 -07:00
seg6_local.h
…
seg6.h
…
selinux_netlink.h
…
sem.h
…
serial_core.h
serial: add PORT_GENERIC definition
2023-10-10 08:51:10 +02:00
serial_reg.h
serial: 8250_port: Introduce UART_IIR_FIFO_ENABLED_16750
2023-09-18 11:14:42 +02:00
serial.h
tty: serial: Fix bit order in RS485 flag definitions
2024-01-27 18:15:24 -08:00
serio.h
media: input: serio.h: add SERIO_EXTRON_DA_HD_PLUS
2024-09-05 20:11:43 +02:00
sev-guest.h
KVM: SEV: Provide support for SNP_GUEST_REQUEST NAE event
2024-07-16 11:44:00 -04:00
shm.h
ipc/shm: uapi: remove dependency on libc
2026-01-26 19:07:10 -08:00
signal.h
…
signalfd.h
…
smc_diag.h
net/smc: support extended GID in SMC-D lgr netlink attribute
2023-12-26 20:24:33 +00:00
smc.h
net/smc: introduce statistics for ringbufs usage of net namespace
2024-08-20 11:38:23 +02:00
smiapp.h
…
snmp.h
tcp: add LINUX_MIB_BEYOND_WINDOW
2025-07-14 18:41:42 -07:00
sock_diag.h
…
socket.h
…
sockios.h
…
sonet.h
…
sonypi.h
…
sound.h
…
soundcard.h
…
stat.h
fs: add atomic write unit max opt to statx
2025-05-07 14:25:30 -07:00
stddef.h
compiler_types.h: Attributes: Add __counted_by_ptr macro
2026-01-17 11:00:28 -08:00
stm.h
…
string.h
…
sunrpc_netlink.h
sunrpc: add SUNRPC_CMD_CACHE_FLUSH netlink command
2026-06-01 11:08:18 -04:00
suspend_ioctls.h
…
swab.h
…
switchtec_ioctl.h
…
sync_file.h
dma-buf/sync_file: Add SET_DEADLINE ioctl
2023-12-02 01:17:48 +02:00
sysctl.h
Merge tag 'mm-stable-2026-02-11-19-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2026-02-12 11:32:37 -08:00
sysinfo.h
…
target_core_user.h
scsi: target: uapi: Replace fake flex-array with flexible-array member
2023-03-24 16:59:09 -04:00
taskstats.h
delayacct: fix uapi timespec64 definition
2026-02-08 00:13:32 -08:00
tcp_metrics.h
tcp_metrics: add netlink protocol spec in YAML
2024-07-01 09:44:27 +01:00
tcp.h
tcp: accecn: add tcpi_ecn_mode and tcpi_option2 in tcp_info
2026-02-03 15:13:25 +01:00
tdx-guest.h
…
tee.h
tee: fix tee_ioctl_object_invoke_arg padding
2026-05-20 08:49:09 +02:00
termios.h
…
thermal.h
thermal/netlink: Prevent userspace segmentation fault by adjusting UAPI header
2025-02-11 20:53:14 +01:00
thp7312.h
media: uapi: Add controls for the THP7312 ISP
2023-12-04 10:37:46 +01:00
time_types.h
…
time.h
time: Introduce auxiliary POSIX clocks
2025-06-19 14:28:22 +02:00
timerfd.h
…
times.h
…
timex.h
…
tiocl.h
vt: bracketed paste support
2025-05-21 13:41:03 +02:00
tipc_config.h
…
tipc_netlink.h
…
tipc_sockets_diag.h
…
tipc.h
…
tls.h
tls: remove tls_toe and the related driver
2026-06-12 16:43:10 -07:00
toshiba.h
…
tps6594_pfsm.h
misc: tps6594-pfsm: Add driver for TI TPS6594 PFSM
2023-06-15 13:41:53 +02:00
trace_mmap.h
Merge tag 'trace-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2026-04-17 09:43:12 -07:00
tty_flags.h
…
tty.h
…
typelimits.h
uapi: add INT_MAX and INT_MIN constants
2026-01-17 15:24:05 -08:00
types.h
types: Complement the aligned types with signed 64-bit one
2024-09-30 09:20:59 +01:00
ublk_cmd.h
ublk: widen ublk_shmem_buf_reg.len to __u64 for 4GB buffer support
2026-04-09 19:08:35 -06:00
udf_fs_i.h
…
udmabuf.h
…
udp.h
udp: Remove UDPLITE_SEND_CSCOV and UDPLITE_RECV_CSCOV.
2026-03-13 18:57:45 -07:00
uhid.h
…
uinput.h
…
uio.h
net: add SO_DEVMEM_DONTNEED setsockopt to release RX frags
2024-09-11 20:44:32 -07:00
uleds.h
…
ultrasound.h
…
um_timetravel.h
um: time-travel: clean up kernel-doc warnings
2026-03-21 10:42:09 +01:00
un.h
…
unistd.h
…
unix_diag.h
…
usbdevice_fs.h
…
usbip.h
…
user_events.h
tracing/user_events: Introduce multi-format events
2024-03-18 10:13:03 -04:00
userfaultfd.h
userfaultfd: UFFDIO_MOVE uABI
2023-12-29 11:58:24 -08:00
userio.h
Input: userio - allow setting other id values
2026-06-01 21:49:14 -07:00
utime.h
…
utsname.h
…
uuid.h
mei: Move uuid.h to the MEI namespace
2023-03-23 17:25:46 +01:00
uvcvideo.h
media: uvcvideo: implement UVC v1.5 ROI
2025-03-03 18:23:36 +01:00
v4l2-common.h
headers: Remove some left-over license text in include/uapi/linux/v4l2-*
2022-12-07 17:58:46 +01:00
v4l2-controls.h
media: v4l2-controls: Add control for background detection
2026-05-04 08:35:14 +02:00
v4l2-dv-timings.h
media: update Hans Verkuil's email address
2025-09-09 15:58:44 +02:00
v4l2-mediabus.h
media: uapi: Document which mbus format fields are valid for metadata
2024-04-29 14:56:36 +02:00
v4l2-subdev.h
media: v4l: subdev: Add len_routes field to struct v4l2_subdev_routing
2024-04-29 14:56:37 +02:00
vbox_err.h
…
vbox_vmmdev_types.h
virt: vbox: uapi: Mark inner unions in packed structs as packed
2026-01-16 15:00:54 -07:00
vboxguest.h
…
vdpa.h
vdpa: support set mac address from vdpa tool
2024-09-10 02:51:48 -04:00
vduse.h
vduse: avoid adding implicit padding
2026-02-09 12:21:32 -05:00
vesa.h
tty: vt: define a common enum for VESA blanking constants
2024-01-27 18:08:54 -08:00
veth.h
…
vfio_ccw.h
…
vfio_zdev.h
…
vfio.h
vfio: Define uAPI for re-init initial bytes during the PRE_COPY phase
2026-03-19 12:32:08 -06:00
vhost_types.h
vhost-net: allow configuring extended features
2025-07-08 18:05:23 +02:00
vhost.h
vhost: Fix ioctl # for VHOST_[GS]ET_FORK_FROM_OWNER
2025-08-26 03:38:19 -04:00
videodev2.h
media: v4l2-ctrls: Add hevc_ext_sps_[ls]t_rps controls
2026-01-21 14:43:09 +01:00
virtio_9p.h
…
virtio_balloon.h
virtio_balloon: introduce memory scan/reclaim info
2024-09-10 02:51:48 -04:00
virtio_blk.h
virtio-blk: fix to match virtio spec
2023-04-04 11:01:57 -04:00
virtio_bt.h
Bluetooth: HCI: Remove HCI_AMP support
2024-05-14 10:54:49 -04:00
virtio_can.h
can: virtio: Fix comment in UAPI header
2026-06-10 02:17:00 -04:00
virtio_config.h
virtio: Define feature bit for administration virtqueue
2023-12-19 11:51:31 -07:00
virtio_console.h
virtio_console: Fix spelling mistake "colums" -> "columns"
2026-06-10 02:14:02 -04:00
virtio_crypto.h
crypto: virtio - Drop sign/verify operations
2024-10-05 13:22:04 +08:00
virtio_fs.h
…
virtio_gpio.h
…
virtio_gpu.h
drm/virtio: support VIRTIO_GPU_F_BLOB_ALIGNMENT
2026-05-20 17:59:21 +03:00
virtio_i2c.h
…
virtio_ids.h
virtio: Add ID for virtio SPI
2025-09-22 09:29:28 +01:00
virtio_input.h
…
virtio_iommu.h
…
virtio_mem.h
virtio-mem: support suspend+resume
2024-05-22 08:31:15 -04:00
virtio_mmio.h
…
virtio_net.h
virtio_net: fix alignment for virtio_net_hdr_v1_hash
2025-11-04 17:14:07 -08:00
virtio_pci.h
virtio_pci: drop kernel.h
2025-11-30 18:02:43 -05:00
virtio_pcidev.h
…
virtio_pmem.h
virtio_pmem: support feature SHMEM_REGION
2024-01-10 13:01:37 -05:00
virtio_ring.h
virtio: uapi: avoid usage of libc types
2025-12-26 15:00:00 -05:00
virtio_rng.h
…
virtio_rtc.h
virtio_rtc: Add RTC class driver
2025-05-27 10:27:54 -04:00
virtio_scmi.h
…
virtio_scsi.h
…
virtio_snd.h
virtio_snd.h: clarify that controls depends on VIRTIO_SND_F_CTLS
2025-02-14 12:58:02 +01:00
virtio_spi.h
virtio-spi: Add virtio-spi.h
2025-09-22 09:29:29 +01:00
virtio_types.h
…
virtio_vsock.h
…
vm_sockets_diag.h
…
vm_sockets.h
vsock/uapi: fix linux/vm_sockets.h userspace compilation errors
2025-06-24 17:12:59 -07:00
vmclock-abi.h
ptp: vmclock: support device notifications
2026-02-02 18:06:00 -08:00
vmcore.h
vmcoreinfo: track and log recoverable hardware errors
2025-11-27 14:24:44 -08:00
vsockmon.h
…
vt.h
Revert "tty: vt: use _IO() to define ioctl numbers"
2025-08-01 10:42:22 +02:00
vtpm_proxy.h
…
wait.h
…
watch_queue.h
…
watchdog.h
watchdog: uapi: add comments for what bit masks apply to
2026-06-08 11:53:18 -07:00
wireguard.h
wireguard: uapi: generate header with ynl-gen
2025-12-02 04:12:49 +01:00
wireless.h
uapi: wireless: Replace zero-length array with flexible-array member
2023-05-28 19:07:48 -06:00
wmi.h
…
wwan.h
…
x25.h
…
xattr.h
get rid of bogus __user in struct xattr_args::value
2025-12-24 13:52:50 +01:00
xdp_diag.h
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xfrm.h
xfrm: add XFRM_MSG_MIGRATE_STATE for single SA migration
2026-06-04 12:22:47 +02:00
xilinx-v4l2-controls.h
…
zorro_ids.h
m68k: amiga: Turn off Warp1260 interrupts during boot
2024-06-04 08:59:58 +02:00
zorro.h
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