linux/include/net
Eric Dumazet ecfea98b7d tcp: add net.ipv4.tcp_rcvbuf_low_rtt
This is a follow up of commit aa251c8463 ("tcp: fix too slow
tcp_rcvbuf_grow() action") which brought again the issue that I tried
to fix in commit 65c5287892 ("tcp: fix sk_rcvbuf overshoot")

We also recently increased tcp_rmem[2] to 32 MB in commit 572be9bf9d
("tcp: increase tcp_rmem[2] to 32 MB")

Idea of this patch is to not let tcp_rcvbuf_grow() grow sk->sk_rcvbuf
too fast for small RTT flows. If sk->sk_rcvbuf is too big, this can
force NIC driver to not recycle pages from their page pool, and also
can cause cache evictions for DDIO enabled cpus/NIC, as receivers
are usually slower than senders.

Add net.ipv4.tcp_rcvbuf_low_rtt sysctl, set by default to 1000 usec (1 ms)

If RTT if smaller than the sysctl value, use the RTT/tcp_rcvbuf_low_rtt
ratio to control sk_rcvbuf inflation.

Tested:

Pair of hosts with a 200Gbit IDPF NIC. Using netperf/netserver

Client initiates 8 TCP bulk flows, asking netserver to use CPU #10 only.

super_netperf 8 -H server -T,10 -l 30

On server, use perf -e tcp:tcp_rcvbuf_grow while test is running.

Before:

sysctl -w net.ipv4.tcp_rcvbuf_low_rtt=1
perf record -a -e tcp:tcp_rcvbuf_grow sleep 30 ; perf script|tail -20|cut -c30-230
 1153.051201: tcp:tcp_rcvbuf_grow: time=398 rtt_us=382 copied=6905856 inq=180224 space=6115328 ooo=0 scaling_ratio=240 rcvbuf=27666235 rcv_ssthresh=25878235 window_clamp=25937095 rcv_wnd=25600000 famil
 1153.138752: tcp:tcp_rcvbuf_grow: time=446 rtt_us=413 copied=5529600 inq=180224 space=4505600 ooo=0 scaling_ratio=240 rcvbuf=23068672 rcv_ssthresh=21571860 window_clamp=21626880 rcv_wnd=21286912 famil
 1153.361484: tcp:tcp_rcvbuf_grow: time=415 rtt_us=380 copied=7061504 inq=204800 space=6725632 ooo=0 scaling_ratio=240 rcvbuf=27666235 rcv_ssthresh=25878235 window_clamp=25937095 rcv_wnd=25600000 famil
 1153.457642: tcp:tcp_rcvbuf_grow: time=483 rtt_us=421 copied=5885952 inq=720896 space=4407296 ooo=0 scaling_ratio=240 rcvbuf=23763511 rcv_ssthresh=22223271 window_clamp=22278291 rcv_wnd=21430272 famil
 1153.466002: tcp:tcp_rcvbuf_grow: time=308 rtt_us=281 copied=3244032 inq=180224 space=2883584 ooo=0 scaling_ratio=240 rcvbuf=44854314 rcv_ssthresh=41992059 window_clamp=42050919 rcv_wnd=41713664 famil
 1153.747792: tcp:tcp_rcvbuf_grow: time=394 rtt_us=332 copied=4460544 inq=585728 space=3063808 ooo=0 scaling_ratio=240 rcvbuf=44854314 rcv_ssthresh=41992059 window_clamp=42050919 rcv_wnd=41373696 famil
 1154.260747: tcp:tcp_rcvbuf_grow: time=652 rtt_us=226 copied=10977280 inq=737280 space=9486336 ooo=0 scaling_ratio=240 rcvbuf=31165538 rcv_ssthresh=29197743 window_clamp=29217691 rcv_wnd=28368896 fami
 1154.375019: tcp:tcp_rcvbuf_grow: time=461 rtt_us=443 copied=7573504 inq=507904 space=6856704 ooo=0 scaling_ratio=240 rcvbuf=27666235 rcv_ssthresh=25878235 window_clamp=25937095 rcv_wnd=25288704 famil
 1154.463072: tcp:tcp_rcvbuf_grow: time=494 rtt_us=408 copied=7983104 inq=200704 space=7065600 ooo=0 scaling_ratio=240 rcvbuf=27666235 rcv_ssthresh=25878235 window_clamp=25937095 rcv_wnd=25579520 famil
 1154.474658: tcp:tcp_rcvbuf_grow: time=507 rtt_us=459 copied=5586944 inq=540672 space=4718592 ooo=0 scaling_ratio=240 rcvbuf=17852266 rcv_ssthresh=16692999 window_clamp=16736499 rcv_wnd=16056320 famil
 1154.584657: tcp:tcp_rcvbuf_grow: time=494 rtt_us=427 copied=8126464 inq=204800 space=7782400 ooo=0 scaling_ratio=240 rcvbuf=27666235 rcv_ssthresh=25878235 window_clamp=25937095 rcv_wnd=25600000 famil
 1154.702117: tcp:tcp_rcvbuf_grow: time=480 rtt_us=406 copied=5734400 inq=180224 space=5349376 ooo=0 scaling_ratio=240 rcvbuf=23068672 rcv_ssthresh=21571860 window_clamp=21626880 rcv_wnd=21286912 famil
 1155.941595: tcp:tcp_rcvbuf_grow: time=717 rtt_us=670 copied=11042816 inq=3784704 space=7159808 ooo=0 scaling_ratio=240 rcvbuf=19581357 rcv_ssthresh=18333222 window_clamp=18357522 rcv_wnd=14614528 fam
 1156.384735: tcp:tcp_rcvbuf_grow: time=529 rtt_us=473 copied=9011200 inq=180224 space=7258112 ooo=0 scaling_ratio=240 rcvbuf=19581357 rcv_ssthresh=18333222 window_clamp=18357522 rcv_wnd=18018304 famil
 1157.821676: tcp:tcp_rcvbuf_grow: time=529 rtt_us=272 copied=8224768 inq=602112 space=6545408 ooo=0 scaling_ratio=240 rcvbuf=67000000 rcv_ssthresh=62793576 window_clamp=62812500 rcv_wnd=62115840 famil
 1158.906379: tcp:tcp_rcvbuf_grow: time=710 rtt_us=445 copied=11845632 inq=540672 space=10240000 ooo=0 scaling_ratio=240 rcvbuf=31165538 rcv_ssthresh=29205935 window_clamp=29217691 rcv_wnd=28536832 fam
 1164.600160: tcp:tcp_rcvbuf_grow: time=841 rtt_us=430 copied=12976128 inq=1290240 space=11304960 ooo=0 scaling_ratio=240 rcvbuf=31165538 rcv_ssthresh=29212591 window_clamp=29217691 rcv_wnd=27856896 fa
 1165.163572: tcp:tcp_rcvbuf_grow: time=845 rtt_us=800 copied=12632064 inq=540672 space=7921664 ooo=0 scaling_ratio=240 rcvbuf=27666235 rcv_ssthresh=25912795 window_clamp=25937095 rcv_wnd=25260032 fami
 1165.653464: tcp:tcp_rcvbuf_grow: time=388 rtt_us=309 copied=4493312 inq=180224 space=3874816 ooo=0 scaling_ratio=240 rcvbuf=44854314 rcv_ssthresh=41995899 window_clamp=42050919 rcv_wnd=41713664 famil
 1166.651211: tcp:tcp_rcvbuf_grow: time=556 rtt_us=553 copied=6328320 inq=540672 space=5554176 ooo=0 scaling_ratio=240 rcvbuf=23068672 rcv_ssthresh=21571860 window_clamp=21626880 rcv_wnd=20946944 famil

After:

sysctl -w net.ipv4.tcp_rcvbuf_low_rtt=1000
perf record -a -e tcp:tcp_rcvbuf_grow sleep 30 ; perf script|tail -20|cut -c30-230
 1457.053149: tcp:tcp_rcvbuf_grow: time=128 rtt_us=24 copied=1441792 inq=40960 space=1269760 ooo=0 scaling_ratio=240 rcvbuf=2960741 rcv_ssthresh=2605474 window_clamp=2775694 rcv_wnd=2568192 family=AF_I
 1458.000778: tcp:tcp_rcvbuf_grow: time=128 rtt_us=31 copied=1441792 inq=24576 space=1400832 ooo=0 scaling_ratio=240 rcvbuf=3060163 rcv_ssthresh=2810042 window_clamp=2868902 rcv_wnd=2674688 family=AF_I
 1458.088059: tcp:tcp_rcvbuf_grow: time=190 rtt_us=110 copied=3227648 inq=385024 space=2781184 ooo=0 scaling_ratio=240 rcvbuf=6728240 rcv_ssthresh=6252705 window_clamp=6307725 rcv_wnd=5799936 family=AF
 1458.148549: tcp:tcp_rcvbuf_grow: time=232 rtt_us=129 copied=3956736 inq=237568 space=2842624 ooo=0 scaling_ratio=240 rcvbuf=6731333 rcv_ssthresh=6252705 window_clamp=6310624 rcv_wnd=5918720 family=AF
 1458.466861: tcp:tcp_rcvbuf_grow: time=193 rtt_us=83 copied=2949120 inq=180224 space=2457600 ooo=0 scaling_ratio=240 rcvbuf=5751438 rcv_ssthresh=5357689 window_clamp=5391973 rcv_wnd=5054464 family=AF_
 1458.775476: tcp:tcp_rcvbuf_grow: time=257 rtt_us=127 copied=4304896 inq=352256 space=3346432 ooo=0 scaling_ratio=240 rcvbuf=8067131 rcv_ssthresh=7523275 window_clamp=7562935 rcv_wnd=7061504 family=AF
 1458.776631: tcp:tcp_rcvbuf_grow: time=200 rtt_us=96 copied=3260416 inq=143360 space=2768896 ooo=0 scaling_ratio=240 rcvbuf=6397256 rcv_ssthresh=5938567 window_clamp=5997427 rcv_wnd=5828608 family=AF_
 1459.707973: tcp:tcp_rcvbuf_grow: time=215 rtt_us=96 copied=2506752 inq=163840 space=1388544 ooo=0 scaling_ratio=240 rcvbuf=3068867 rcv_ssthresh=2768282 window_clamp=2877062 rcv_wnd=2555904 family=AF_
 1460.246494: tcp:tcp_rcvbuf_grow: time=231 rtt_us=80 copied=3756032 inq=204800 space=3117056 ooo=0 scaling_ratio=240 rcvbuf=7288091 rcv_ssthresh=6773725 window_clamp=6832585 rcv_wnd=6471680 family=AF_
 1460.714596: tcp:tcp_rcvbuf_grow: time=270 rtt_us=110 copied=4714496 inq=311296 space=3719168 ooo=0 scaling_ratio=240 rcvbuf=8957739 rcv_ssthresh=8339020 window_clamp=8397880 rcv_wnd=7933952 family=AF
 1462.029977: tcp:tcp_rcvbuf_grow: time=101 rtt_us=19 copied=1105920 inq=40960 space=1036288 ooo=0 scaling_ratio=240 rcvbuf=2338970 rcv_ssthresh=2091684 window_clamp=2192784 rcv_wnd=1986560 family=AF_I
 1462.802385: tcp:tcp_rcvbuf_grow: time=89 rtt_us=45 copied=1069056 inq=0 space=1064960 ooo=0 scaling_ratio=240 rcvbuf=2338970 rcv_ssthresh=2091684 window_clamp=2192784 rcv_wnd=2035712 family=AF_INET6
 1462.918648: tcp:tcp_rcvbuf_grow: time=105 rtt_us=33 copied=1441792 inq=180224 space=1069056 ooo=0 scaling_ratio=240 rcvbuf=2383282 rcv_ssthresh=2091684 window_clamp=2234326 rcv_wnd=1896448 family=AF_
 1463.222533: tcp:tcp_rcvbuf_grow: time=273 rtt_us=144 copied=4603904 inq=385024 space=3469312 ooo=0 scaling_ratio=240 rcvbuf=8422564 rcv_ssthresh=7891053 window_clamp=7896153 rcv_wnd=7409664 family=AF
 1466.519312: tcp:tcp_rcvbuf_grow: time=130 rtt_us=23 copied=1343488 inq=0 space=1261568 ooo=0 scaling_ratio=240 rcvbuf=2780158 rcv_ssthresh=2493778 window_clamp=2606398 rcv_wnd=2494464 family=AF_INET6
 1466.681003: tcp:tcp_rcvbuf_grow: time=128 rtt_us=21 copied=1441792 inq=12288 space=1343488 ooo=0 scaling_ratio=240 rcvbuf=2932027 rcv_ssthresh=2578555 window_clamp=2748775 rcv_wnd=2568192 family=AF_I
 1470.689959: tcp:tcp_rcvbuf_grow: time=255 rtt_us=122 copied=3932160 inq=204800 space=3551232 ooo=0 scaling_ratio=240 rcvbuf=8182038 rcv_ssthresh=7647384 window_clamp=7670660 rcv_wnd=7442432 family=AF
 1471.754154: tcp:tcp_rcvbuf_grow: time=188 rtt_us=95 copied=2138112 inq=577536 space=1429504 ooo=0 scaling_ratio=240 rcvbuf=3113650 rcv_ssthresh=2806426 window_clamp=2919046 rcv_wnd=2248704 family=AF_
 1476.813542: tcp:tcp_rcvbuf_grow: time=269 rtt_us=99 copied=3088384 inq=180224 space=2564096 ooo=0 scaling_ratio=240 rcvbuf=6219470 rcv_ssthresh=5771893 window_clamp=5830753 rcv_wnd=5509120 family=AF_
 1477.738309: tcp:tcp_rcvbuf_grow: time=166 rtt_us=54 copied=1777664 inq=180224 space=1417216 ooo=0 scaling_ratio=240 rcvbuf=3117118 rcv_ssthresh=2874958 window_clamp=2922298 rcv_wnd=2613248 family=AF_

We can see sk_rcvbuf values are much smaller, and that rtt_us (estimation of rtt
from a receiver point of view) is kept small, instead of being bloated.

No difference in throughput.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Tested-by: Paolo Abeni <pabeni@redhat.com>
Link: https://patch.msgid.link/20251119084813.3684576-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
History 2025-11-20 17:44:23 -08:00
..
9p netfs, 9p: Implement helpers for new write code 2024-05-01 18:07:37 +01:00
bluetooth Bluetooth: hci_event: Fix not handling PA Sync Lost event 2025-11-11 08:55:18 -05:00
caif caif: Remove unused cfsrvl_getphyid 2024-10-08 15:33:49 -07:00
iucv net: reformat kdoc return statements 2024-12-09 14:44:59 -08:00
libeth libeth: xdp: Disable generic kCFI pass for libeth_xdp_tx_xmit_bulk() 2025-10-29 20:04:55 -07:00
mana net: mana: Drop TX skb on post_work_request failure and unmap resources 2025-11-19 20:11:57 -08:00
netfilter netfilter: fix typo in nf_conntrack_l4proto.h comment 2025-10-30 12:52:45 +01:00
netns tcp: add net.ipv4.tcp_rcvbuf_low_rtt 2025-11-20 17:44:23 -08:00
nfc net: nfc: nci: Increase NCI_DATA_TIMEOUT to 3000 ms 2025-09-03 17:02:12 -07:00
page_pool net: add helper to pre-check if PP for an Rx queue will be unreadable 2025-09-04 10:19:17 +02:00
phonet phonet: Convert phonet_routes.lock to spinlock_t. 2024-10-24 16:03:40 +02:00
psp psp: add stats from psp spec to driver facing api 2025-11-07 18:53:57 -08:00
sctp sctp: Remove unused declaration sctp_auth_init_hmacs() 2025-11-14 18:00:34 -08:00
tc_act net_sched: act_skbmod: use RCU in tcf_skbmod_dump() 2025-08-28 16:46:23 -07:00
6lowpan.h 6lowpan: Replace zero-length array with flexible-array member 2020-02-28 14:51:30 +01:00
act_api.h net_sched: act: remove tcfa_qstats 2025-09-02 15:52:24 -07:00
addrconf.h ipv6: Add in6_dev_rcu(). 2025-11-03 17:40:46 -08:00
af_ieee802154.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
af_rxrpc.h rxrpc: Remove deadcode 2025-04-24 17:03:45 -07:00
af_unix.h af_unix: Introduce SO_INQ. 2025-07-08 18:05:25 -07:00
af_vsock.h vsock: fix vsock_proto declaration 2025-07-07 16:55:54 -07:00
ah.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
aligned_data.h udp: move udp_memory_allocated into net_aligned_data 2025-07-02 14:22:02 -07:00
amt.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
arp.h neighbour: switch to standard rcu, instead of rcu_bh 2023-03-21 21:32:18 -07:00
atmclip.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ax25.h ax25: Remove broken autobind 2025-03-24 10:26:53 +00:00
ax88796.h ax88796: Fix some typo in a comment 2022-08-09 22:14:02 -07:00
bareudp.h bareudp: Move definition of struct bareudp_conf to bareudp.c 2021-12-13 12:34:09 +00:00
bond_3ad.h bonding: support aggregator selection based on port priority 2025-09-09 10:56:02 +02:00
bond_alb.h bonding: Correct spelling in headers 2024-08-26 09:37:22 -07:00
bond_options.h bonding: add support for per-port LACP actor priority 2025-09-09 10:56:02 +02:00
bonding.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-10-01 10:14:49 +02:00
bpf_sk_storage.h bpf: struct sock is declared twice in bpf_sk_storage header 2021-03-26 17:43:55 +01:00
busy_poll.h net: gro: decouple GRO from the NAPI layer 2025-02-27 14:03:14 +01:00
calipso.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
cfg80211-wext.h wifi: cfg80211: Avoid clashing function prototypes 2022-11-16 11:31:47 +02:00
cfg80211.h wifi: cfg80211/mac80211: Add fallback mechanism for INDOOR_SP connection 2025-11-11 11:05:00 +01:00
cfg802154.h mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-03-06 21:01:26 +01:00
checksum.h net: Fix checksum update for ILA adj-transport 2025-05-30 19:53:51 -07:00
cipso_ipv4.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
cls_cgroup.h net/cls_cgroup: Fix task_get_classid() during qdisc run 2025-09-14 11:55:04 -07:00
codel.h codel: fix kernel-doc notation warnings 2023-07-14 20:39:29 -07:00
codel_impl.h codel: remove unnecessary sock.h include 2021-12-22 15:03:47 -08:00
codel_qdisc.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
compat.h net: copy from user before calling __get_compat_msghdr 2022-07-24 18:39:17 -06:00
datalink.h net: datalink: Remove unused declarations 2023-07-27 17:17:32 -07:00
dcbevent.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
dcbnl.h net: dcb: add helper functions to retrieve PCP and DSCP rewrite maps 2023-01-20 09:33:22 +00:00
devlink.h devlink: Add new "max_mac_per_vf" generic device param 2025-11-06 12:57:31 -08:00
dropreason-core.h tcp: add datapath logic for PSP with inline key exchange 2025-09-18 12:32:06 +02:00
dropreason.h wifi: mac80211: Drop cooked monitor support 2025-02-11 11:58:17 +01:00
dsa.h net: dsa: remove definition of struct dsa_switch_driver 2025-11-13 17:40:22 -08:00
dsa_stubs.h net: dsa: Use conduit and user terms 2023-10-24 13:08:14 -07:00
dscp.h net: add IEEE 802.1q specific helpers 2024-05-08 10:35:09 +01:00
dsfield.h ipv6: Annotate bitwise IPv6 dsfield pointer cast 2019-12-16 16:09:44 -08:00
dst.h net: dst: introduce dst->dev_rcu 2025-08-29 19:36:31 -07:00
dst_cache.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
dst_metadata.h net: dst_metadata: fix IP_DF bit not extracted from tunnel headers 2025-09-14 14:28:12 -07:00
dst_ops.h net: fix __dst_negative_advice() race 2024-05-29 17:34:49 -07:00
eee.h net: simplify eeecfg_mac_can_tx_lpi 2024-11-13 18:49:50 -08:00
erspan.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
esp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
espintcp.h inet: preserve const qualifier in inet_csk() 2024-04-01 21:27:08 -07:00
ethoc.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
failover.h net: failover: add net device refcount tracker 2021-12-06 16:06:02 -08:00
fib_notifier.h net: do not acquire rtnl in fib_seq_sum() 2024-10-11 15:35:05 -07:00
fib_rules.h net: fib_rules: Fix iif / oif matching on L3 master device 2025-04-15 17:54:56 -07:00
firewire.h firewire: net: Make use of get_unaligned_be48(), put_unaligned_be48() 2022-07-28 22:21:54 -07:00
flow.h ipv4: Convert ->flowi4_tos to dscp_t. 2025-08-26 17:34:31 -07:00
flow_dissector.h flow_dissector: cleanup FLOW_DISSECTOR_KEY_ENC_FLAGS 2024-07-15 09:14:39 -07:00
flow_offload.h net: sched: propagate "skip_sw" flag to struct flow_cls_common_offload 2024-10-30 17:33:53 -07:00
fou.h bpf,fou: Add bpf_skb_{set,get}_fou_encap kfuncs 2023-04-12 16:40:39 -07:00
fq.h net: fq: Remove unused typedef fq_flow_get_default_t 2023-08-08 15:58:23 -07:00
fq_impl.h wifi: mac80211: add support for restricting netdev features per vif 2022-12-01 15:09:10 +01:00
garp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
gen_stats.h net: sched: Remove Qdisc::running sequence counter 2021-10-18 12:54:41 +01:00
genetlink.h genetlink: fix typo in comment 2025-09-03 15:16:49 -07:00
geneve.h net: geneve: fix array of flexible structures warnings 2022-10-31 10:43:04 +00:00
gre.h ip_tunnel: convert __be16 tunnel flags to bitmaps 2024-04-01 10:49:28 +01:00
gro.h tcp: gro: inline tcp_gro_pull_header() 2025-11-14 18:00:08 -08:00
gro_cells.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gso.h net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
gtp.h gtp: properly parse extension headers 2024-05-07 01:35:55 +02:00
gue.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
handshake.h net/handshake: Add helpers for parsing incoming TLS Alerts 2023-07-28 14:07:59 -07:00
hotdata.h net: add NUMA awareness to skb_attempt_defer_free() 2025-09-30 15:45:53 +02:00
hwbm.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
icmp.h ipv4: icmp: Pass IPv4 control block structure as an argument to __icmp_send() 2025-09-11 12:22:38 +02:00
ieee8021q.h net: add IEEE 802.1q specific helpers 2024-05-08 10:35:09 +01:00
ieee80211_radiotap.h wifi: mac80211: add RX flag to report radiotap VHT information 2025-10-30 08:38:51 +01:00
ieee802154_netdev.h mac802154: Handle association requests from peers 2023-11-20 11:43:03 +01:00
if_inet6.h ipv6: anycast: complete RCU handling of struct ifacaddr6 2024-02-26 18:40:34 -08:00
ife.h net: ife: drop include of module.h from net/ife.h 2019-04-22 21:50:53 -07:00
inet6_connection_sock.h tcp/dccp: Remove inet_connection_sock_af_ops.addr2sockaddr(). 2025-03-24 12:10:13 -07:00
inet6_hashtables.h tcp: Remove inet6_hash(). 2025-09-22 11:38:43 -07:00
inet_common.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
inet_connection_sock.h tcp: Remove timeout arg from reqsk_timeout(). 2025-11-07 18:05:26 -08:00
inet_dscp.h ipv4: Convert ->flowi4_tos to dscp_t. 2025-08-26 17:34:31 -07:00
inet_ecn.h net: add skb_get_dsfield() helper 2021-10-15 11:33:08 +01:00
inet_frag.h inet: frags: change inet_frag_kill() to defer refcount updates 2025-03-18 13:18:36 +01:00
inet_hashtables.h tcp: Update bind bucket state on port release 2025-09-23 10:12:15 +02:00
inet_sock.h sctp: Remove sctp_copy_sock() and sctp_copy_descendant(). 2025-10-27 18:04:59 -07:00
inet_timewait_sock.h tcp: Update bind bucket state on port release 2025-09-23 10:12:15 +02:00
inetpeer.h inetpeer: remove create argument of inet_getpeer() 2024-12-17 19:37:00 -08:00
ioam6.h net: ioam6: multicast event 2024-02-28 11:19:41 +00:00
ip.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
ip6_checksum.h net: move gro definitions to include/net/gro.h 2021-11-16 13:16:54 +00:00
ip6_fib.h ipv6: Defer fib6_purge_rt() in fib6_add_rt2node() to fib6_add(). 2025-04-24 09:29:56 +02:00
ip6_route.h ipv6: make ipv6_pinfo.daddr_cache a boolean 2025-09-18 10:17:09 +02:00
ip6_tunnel.h ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers 2025-07-02 14:32:30 -07:00
ip_fib.h ipv4: Convert ->flowi4_tos to dscp_t. 2025-08-26 17:34:31 -07:00
ip_tunnels.h net/ip6_tunnel: Prevent perpetual tunnel growth 2025-10-13 17:43:46 -07:00
ip_vs.h ipvs: Fix estimator kthreads preferred affinity 2025-08-13 08:34:33 +02:00
ipcomp.h xfrm: ipcomp: Use crypto_acomp interface 2025-03-21 17:36:49 +08:00
ipconfig.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
ipv6.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
ipv6_frag.h inet: frags: change inet_frag_kill() to defer refcount updates 2025-03-18 13:18:36 +01:00
ipv6_stubs.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
iw_handler.h Revert "wifi: cfg80211: unexport wireless_nlevent_flush()" 2024-10-09 08:53:01 +02:00
kcm.h net: kcm: Fix race condition in kcm_unattach() 2025-08-13 18:18:33 -07:00
l3mdev.h net: fib_rules: Fix iif / oif matching on L3 master device 2025-04-15 17:54:56 -07:00
lag.h net: Add lag.h, net_lag_port_dev_txable() 2018-07-11 23:10:19 -07:00
lapb.h net: lapb: increase LAPB_HEADER_LEN 2024-12-06 17:43:08 -08:00
llc.h llc: fix out-of-bound array index in llc_sk_dev_hash() 2021-11-07 19:25:29 +00:00
llc_c_ac.h net: llc: Remove unused function declarations 2023-08-04 15:33:17 -07:00
llc_c_ev.h net: llc: Remove unused function declarations 2023-08-04 15:33:17 -07:00
llc_c_st.h llc: Constify struct llc_conn_state_trans 2024-07-15 08:51:01 -07:00
llc_conn.h llc: Check netns in llc_estab_match() and llc_listener_match(). 2023-07-20 10:46:28 +02:00
llc_if.h llc/snap: constify dev_addr passing 2021-10-13 09:40:46 -07:00
llc_pdu.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
llc_s_ac.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
llc_s_ev.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
llc_s_st.h llc: Constify struct llc_sap_state_trans 2024-07-15 08:51:19 -07:00
llc_sap.h llc*.h: Remove extern from function prototypes 2013-09-21 14:01:38 -04:00
lwtunnel.h net: dst: annotate data-races around dst->output 2025-07-02 14:32:30 -07:00
mac80211.h wifi: mac80211: fix EHT typo 2025-11-10 10:38:37 +01:00
mac802154.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
macsec.h net: macsec: Add endianness annotations in salt struct 2025-01-20 12:20:42 +00:00
mctp.h net: mctp: Allow limiting binds to a peer address 2025-07-15 12:08:39 +02:00
mctpdevice.h net: mctp: Expose transport binding identifier via IFLA attribute 2024-11-09 09:04:54 -08:00
mip6.h net: mip6: Replace zero-length array with flexible-array member 2020-03-02 11:16:27 -08:00
mld.h mld: add new workqueues for process mld events 2021-03-26 15:14:56 -07:00
mpls.h net: Make mpls_entry_encode() available for generic users 2020-05-29 21:20:20 -07:00
mpls_iptunnel.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
mptcp.h mptcp: sched: remove mptcp_sched_data 2025-04-15 08:21:46 -07:00
mrp.h mrp: introduce active flags to prevent UAF when applicant uninit 2022-11-18 12:14:55 +00:00
ncsi.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
ndisc.h net: replace ND_PRINTK with dynamic debug 2025-07-10 15:27:32 -07:00
neighbour.h neighbour: Convert rwlock of struct neigh_table to spinlock. 2025-10-24 17:57:20 -07:00
neighbour_tables.h neighbour: Create netdev->neighbour association 2024-11-09 13:22:57 -08:00
net_debug.h Kbuild updates for v6.13 2024-11-30 13:41:50 -08:00
net_failover.h net: Introduce net_failover driver 2018-05-28 22:59:54 -04:00
net_namespace.h namespace-6.18-rc1 2025-09-29 11:20:29 -07:00
net_ratelimit.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
net_shaper.h net-shapers: implement NL get operation 2024-10-10 08:30:22 -07:00
net_trackers.h net: add networking namespace refcount tracker 2021-12-10 06:38:26 -08:00
netdev_lock.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-05-22 09:42:41 -07:00
netdev_netlink.h net: add granular lock for the netdev netlink socket 2025-03-12 13:32:35 -07:00
netdev_queues.h net: add helper to pre-check if PP for an Rx queue will be unreadable 2025-09-04 10:19:17 +02:00
netdev_rx_queue.h net: designate XSK pool pointers in queues as "ops protected" 2025-04-09 17:01:51 -07:00
netevent.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
netkit.h bpf, netkit: Add indirect call wrapper for fetching peer dev 2023-11-20 10:15:16 -08:00
netlabel.h Networking changes for 6.13. 2024-11-21 08:28:08 -08:00
netlink.h netlink: introduce type-checking attribute iteration for nlmsg 2025-07-02 15:39:04 -07:00
netmem.h net: netmem: remove NET_IOV_MAX from net_iov_type enum 2025-10-28 17:41:46 -07:00
netprio_cgroup.h netprio: use css ID instead of cgroup ID 2019-11-12 08:18:03 -08:00
netrom.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
nexthop.h ipv6: Protect nh->f6i_list with spinlock and flag. 2025-04-24 09:29:56 +02:00
nl802154.h nl802154: fix some kernel-doc warnings 2025-10-20 17:13:40 -07:00
nsh.h net: NSH: fix kernel-doc notation warning 2023-07-14 20:39:29 -07:00
pfcp.h net: pfcp: fix typo in message_priority field name 2025-06-13 18:17:08 -07:00
pie.h pie: fix kernel-doc notation warning 2023-07-14 20:39:30 -07:00
ping.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
pkt_cls.h net: sched: refine software bypass handling in tc_run 2025-01-20 09:21:27 +00:00
pkt_sched.h net/sched: Remove unused typedef psched_tdiff_t 2025-10-27 18:05:54 -07:00
pptp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
proto_memory.h net: Allow opt-out from global protocol memory accounting. 2025-10-16 12:04:47 -07:00
protocol.h ipv6: move tcp_ipv6_hash_secret and udp_ipv6_hash_secret to net_hotdata 2024-03-07 21:12:43 -08:00
psample.h net: psample: fix flag being set in wrong skb 2024-07-11 18:11:31 -07:00
psnap.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
psp.h psp: base PSP device support 2025-09-18 12:32:06 +02:00
raw.h net: use NUMA drop counters for softnet_data.dropped 2025-09-14 11:35:17 -07:00
rawv6.h ipv6: raw: constify raw_v6_match() socket argument 2023-03-17 08:56:37 +00:00
red.h net: sched: Correct spelling in headers 2024-08-26 09:37:23 -07:00
regulatory.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
request_sock.h tcp: Call tcp_syn_ack_timeout() directly. 2025-11-07 18:05:25 -08:00
rose.h net: rose: convert 'use' field to refcount_t 2025-08-27 07:43:08 -07:00
route.h net: use dst_dev_rcu() in sk_setup_caps() 2025-08-29 19:36:32 -07:00
rpl.h ipv6: rpl: Remove pskb(_may)?_pull() in ipv6_rpl_srh_rcv(). 2023-06-19 11:32:58 -07:00
rps.h net: Add rfs_needed() helper 2025-09-03 15:08:20 -07:00
rsi_91x.h rsi: remove kernel-doc comment marker 2023-07-14 20:39:30 -07:00
rstreason.h net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
rtnetlink.h rtnetlink: Remove "net" from newlink params 2025-02-21 15:28:03 -08:00
rtnh.h net: Rename net/nexthop.h net/rtnh.h 2019-04-22 21:47:25 -07:00
sch_generic.h net: dev_queue_xmit() llist adoption 2025-10-16 16:25:10 -07:00
scm.h af_unix/scm: fix whitespace errors 2025-07-04 09:32:35 +02:00
secure_seq.h net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
seg6.h ipv6: sr: restruct ifdefines 2024-05-30 18:29:38 -07:00
seg6_hmac.h ipv6: sr: Prepare HMAC key ahead of time 2025-08-26 18:11:29 -07:00
seg6_local.h seg6: Use nested-BH locking for seg6_bpf_srh_states. 2024-06-24 16:41:23 -07:00
selftests.h net: selftests: export packet creation helpers for driver use 2025-11-06 13:38:11 +01:00
slhc_vj.h slip: Check if rstate is initialized before uncompressing 2018-04-11 10:33:46 -04:00
smc.h net/smc: bpf: Introduce generic hook for handshake flow 2025-11-10 11:19:41 -08:00
snmp.h net: snmp: remove SNMP_MIB_SENTINEL 2025-09-08 18:06:21 -07:00
sock.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
sock_reuseport.h net: core: annotate socks of struct sock_reuseport with __counted_by 2024-08-02 17:16:59 -07:00
Space.h net: appletalk: remove cops support 2023-10-04 11:49:20 -07:00
stp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
strparser.h strparser: Remove unused __strp_unpause 2025-05-05 16:48:12 -07:00
switchdev.h net: bridge: switchdev: Skip MDB replays of deferred events on offload 2024-02-16 09:36:37 +00:00
tc_wrapper.h Merge branch 'x86/bugs' into x86/core, to pick up pending changes before dependent patches 2024-02-14 10:49:37 +01:00
tcp.h tcp: gro: inline tcp_gro_pull_header() 2025-11-14 18:00:08 -08:00
tcp_ao.h tcp: Free TCP-AO/TCP-MD5 info/keys without RCU 2025-09-11 19:05:56 -07:00
tcp_ecn.h tcp: accecn: AccECN option failure handling 2025-09-18 08:47:52 +02:00
tcp_states.h tcp: Dump bound-only sockets in inet_diag. 2023-12-04 14:45:26 -08:00
tcx.h bpf: Remove location field in tcx_link 2025-07-11 11:00:57 -07:00
timewait_sock.h tcp: Remove timewait_sock_ops.twsk_destructor(). 2025-08-25 17:53:35 -07:00
tipc.h flow_dissector: do not rely on implicit casts 2018-05-08 00:02:41 -04:00
tls.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-10-31 06:46:03 -07:00
tls_prot.h net/tls: Add TLS Alert definitions 2023-07-28 14:07:59 -07:00
tls_toe.h net/tls: rename tls_hw_* functions tls_toe_* 2019-10-04 14:07:07 -07:00
transp_v6.h inet6: Remove unused function declaration udpv6_connect() 2023-08-01 15:06:27 -07:00
tso.h net: tso: inline tso_count_descs() 2022-12-12 15:04:39 -08:00
tun_proto.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
udp.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
udp_tunnel.h udp_tunnel: fix deadlock in udp_tunnel_nic_set_port_priv() 2025-06-24 16:31:36 -07:00
udplite.h udplite: fix various data-races 2023-09-14 16:16:36 +02:00
vsock_addr.h net: Convert proto_ops connect() callbacks to use sockaddr_unsized 2025-11-04 19:10:32 -08:00
vxlan.h vxlan: Support MC routing in the underlay 2025-06-17 18:18:46 -07:00
wext.h lift handling of SIOCIW... out of dev_ioctl() 2018-01-24 19:13:45 -05:00
x25.h net/x25: Remove unused x25_terminate_link() 2025-07-14 17:19:13 -07:00
x25device.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xdp.h bpf-next-for-netdev 2025-09-24 10:22:37 -07:00
xdp_priv.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
xdp_sock.h xsk: add indirect call for xsk_destruct_skb 2025-11-11 10:21:08 +01:00
xdp_sock_drv.h xsk: Move NETDEV_XDP_ACT_ZC into generic header 2025-11-06 16:46:11 -08:00
xfrm.h xfrm: Determine inner GSO type from packet inner protocol 2025-10-30 11:52:31 +01:00
xsk_buff_pool.h xsk: use a smaller new lock for shared pool case 2025-11-04 16:10:53 +01:00