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linux/Documentation/networking
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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
..
caif tty: cumulate and document tty_struct::flow* members 2021-05-13 16:57:16 +02:00
device_drivers net: rnpgbe: Add build support for rnpgbe 2025-11-04 18:11:36 -08:00
devlink devlink: Introduce switchdev_inactive eswitch mode 2025-11-11 13:17:53 +01:00
diagnostic Documentation: networking: update PHY error counter diagnostics in twisted pair guide 2025-01-14 11:44:19 +01:00
dsa net: dsa: Rename IFLA_DSA_MASTER to IFLA_DSA_CONDUIT 2023-10-24 13:08:14 -07:00
mac80211_hwsim docs: net: convert two README files to ReST format 2019-07-31 13:31:56 -06:00
net_cachelines tcp: add net.ipv4.tcp_rcvbuf_low_rtt 2025-11-20 17:44:23 -08:00
pse-pd net: pse-pd: Add support for PSE PIs 2024-04-18 18:27:33 -07:00
xfrm net: Move XFRM documentation into its own subdirectory 2025-11-12 08:30:03 +01:00
6lowpan.rst docs: networking: convert 6lowpan.txt to ReST 2020-02-28 14:52:36 +01:00
6pack.rst net: 6pack: Demote "How to turn on 6pack support" section heading 2025-10-21 10:57:45 +02:00
af_xdp.rst net: xsk: introduce XDP_MAX_TX_SKB_BUDGET setsockopt 2025-07-10 14:48:29 +02:00
alias.rst docs: networking: Convert alias.txt to rst 2018-07-18 15:28:27 -07:00
arcnet-hardware.rst Documentation: ARCnet: Update obsolete contact info 2025-10-31 18:08:08 -07:00
arcnet.rst Documentation: ARCnet: Update obsolete contact info 2025-10-31 18:08:08 -07:00
atm.rst docs: networking: convert atm.txt to ReST 2020-04-28 14:38:38 -07:00
ax25.rst Documentation: networking: ax25: update the mailing list info. 2025-10-21 17:41:57 -07:00
bareudp.rst docs: net: bareudp: fix spelling and grammar mistakes 2024-11-30 13:54:28 -08:00
batman-adv.rst batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
bonding.rst bonding: support aggregator selection based on port priority 2025-09-09 10:56:02 +02:00
bridge.rst Documentation: update mailing list addresses 2024-02-21 13:44:21 -07:00
can.rst linux-can-fixes-for-6.18-20251014 2025-10-15 17:56:20 -07:00
can_ucan_protocol.rst Documentation: networking: correct spelling 2023-01-31 13:00:47 +01:00
cdc_mbim.rst Fix spelling mistake 2024-11-28 12:08:32 +01:00
checksum-offloads.rst docs: networking: convert netdev-features.txt to ReST 2020-04-30 12:56:36 -07:00
dctcp.rst docs: networking: convert dctcp.txt to ReST 2020-04-28 14:38:39 -07:00
devmem.rst net: add devmem TCP TX documentation 2025-05-13 11:12:48 +02:00
dns_resolver.rst net: dns_resolver: Fix request-key cross-reference 2025-09-26 15:21:38 -07:00
driver.rst net: docs: update the sample code in driver.rst 2023-04-13 13:30:21 +02:00
eql.rst docs: networking: convert eql.txt to ReST 2020-04-28 14:39:46 -07:00
ethtool-netlink.rst ethtool: netlink: add ETHTOOL_MSG_MSE_GET and wire up PHY MSE access 2025-11-03 18:32:27 -08:00
failover.rst net: Introduce generic failover module 2018-05-28 22:59:54 -04:00
fib_trie.rst docs: networking: convert fib_trie.txt to ReST 2020-04-28 14:39:46 -07:00
filter.rst ARC: Add eBPF JIT support 2024-05-12 16:51:36 -07:00
gen_stats.rst docs: networking: convert gen_stats.txt to ReST 2020-04-28 14:39:46 -07:00
generic-hdlc.rst docs: networking: convert generic-hdlc.txt to ReST 2020-04-28 14:39:46 -07:00
generic_netlink.rst Documentation: networking: Update generic_netlink_howto URL 2022-11-23 17:25:02 -08:00
gtp.rst Documentation: networking: correct spelling 2023-01-31 13:00:47 +01:00
ieee802154.rst Documentation: ieee802154: fix grammar 2024-10-28 21:14:27 +01:00
ila.rst docs: networking: convert ila.txt to ReST 2020-04-28 14:39:47 -07:00
index.rst net: Move XFRM documentation into its own subdirectory 2025-11-12 08:30:03 +01:00
ioam6-sysctl.rst ipv6: ioam: Documentation for new IOAM sysctls 2021-07-21 08:14:33 -07:00
iou-zcrx.rst io_uring/zcrx: add support for IORING_SETUP_CQE_MIXED 2025-08-27 11:24:22 -06:00
ip-sysctl.rst tcp: add net.ipv4.tcp_rcvbuf_low_rtt 2025-11-20 17:44:23 -08:00
ip_dynaddr.rst docs: networking: convert ip_dynaddr.txt to ReST 2020-04-28 14:39:47 -07:00
ipsec.rst docs: networking: convert ipsec.txt to ReST 2020-04-28 14:39:47 -07:00
ipv6.rst docs: networking: convert ipv6.txt to ReST 2020-04-28 14:40:18 -07:00
ipvlan.rst Documentation: networking: correct spelling 2023-01-31 13:00:47 +01:00
ipvs-sysctl.rst ipvs: run_estimation should control the kthread tasks 2022-12-10 22:44:43 +01:00
iso15765-2.rst Documentation/networking: fix basic node example document ISO 15765-2 2025-02-08 11:28:11 +01:00
j1939.rst can: j1939: Extend stack documentation with buffer size behavior 2025-02-19 11:10:53 +01:00
kapi.rst net-shapers: implement NL get operation 2024-10-10 08:30:22 -07:00
kcm.rst docs/kcm: Fix typo "BFP" 2025-03-24 12:20:42 -07:00
l2tp.rst documentation/networking: update l2tp docs 2024-08-11 04:38:49 +01:00
lapb-module.rst docs: networking: convert lapb-module.txt to ReST 2020-04-30 12:56:35 -07:00
mac80211-auth-assoc-deauth.txt mac80211: set HT channel before association 2012-04-10 14:54:07 -04:00
mac80211-injection.rst doc: networking: wireless: fix wiki website url 2020-06-08 10:05:53 +02:00
mctp.rst mctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control 2022-02-09 12:00:11 +00:00
mpls-sysctl.rst docs: networking: convert mpls-sysctl.txt to ReST 2020-04-30 12:56:36 -07:00
mptcp-sysctl.rst mptcp: make ADD_ADDR retransmission timeout adaptive 2025-09-09 18:57:45 -07:00
mptcp.rst Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-09-11 17:40:13 -07:00
msg_zerocopy.rst docs: net: description of MSG_ZEROCOPY for AF_VSOCK 2023-10-15 13:19:42 +01:00
multi-pf-netdev.rst tools: ynl: move python code to separate sub-directory 2025-01-09 12:53:27 -08:00
multiqueue.rst docs: networking: convert multiqueue.txt to ReST 2020-04-30 12:56:36 -07:00
napi.rst net: Extend NAPI threaded polling to allow kthread based busy polling 2025-11-03 18:11:40 -08:00
net_dim.rst dim: pass dim_sample to net_dim() by reference 2024-11-03 12:36:54 -08:00
net_failover.rst Documentation: net: net_failover: Separate cloud-ifupdown-helper and reattach-vf.sh code blocks marker 2025-10-17 16:28:29 -07:00
netconsole.rst Documentation: netconsole: Separate literal code blocks for full and short netcat command name versions 2025-10-31 16:54:22 -07:00
netdev-features.rst net: enable driver support for netmem TX 2025-05-13 11:12:49 +02:00
netdevices.rst netdev: fix the locking for netdev notifications 2025-04-17 18:55:14 -07:00
netfilter-sysctl.rst docs: networking: convert netfilter-sysctl.txt to ReST 2020-04-30 12:56:36 -07:00
netif-msg.rst docs: networking: convert netif-msg.txt to ReST 2020-04-30 12:56:36 -07:00
netmem.rst net: enable driver support for netmem TX 2025-05-13 11:12:49 +02:00
nexthop-group-resilient.rst Documentation: net: Document resilient next-hop groups 2021-03-29 13:51:38 -07:00
nf_conntrack-sysctl.rst netfilter: conntrack: remove DCCP protocol support 2025-07-03 13:51:39 +02:00
nf_flowtable.rst docs: nf_flowtable: fix compilation and warnings 2021-03-25 17:42:02 -07:00
nfc.rst net: nfc: Format userspace interface subsection headings 2025-10-21 10:57:45 +02:00
oa-tc6-framework.rst Documentation: networking: add OPEN Alliance 10BASE-T1x MAC-PHY serial interface 2024-09-11 20:53:42 -07:00
openvswitch.rst docs: networking: convert openvswitch.txt to ReST 2020-04-30 12:56:36 -07:00
operstates.rst docs: operstates: document IF_OPER_TESTING 2021-08-02 15:16:04 +01:00
packet_mmap.rst docs: networking: packet_mmap: replace dead links with archive.org links 2024-10-28 15:47:10 -07:00
page_pool.rst net: page_pool: expose page pool stats via netlink 2023-11-28 15:48:39 +01:00
phonet.rst Documentation: networking: correct spelling 2023-01-31 13:00:47 +01:00
phy-link-topology.rst Documentation: networking: document phy_link_topology 2024-08-23 13:04:35 +01:00
phy.rst Revert "Documentation: net: add flow control guide and document ethtool API" 2025-10-01 09:48:21 +02:00
pktgen.rst pktgen: Introducing 'SHARED' flag for testing with non-shared skb 2023-09-28 16:25:14 +02:00
plip.rst docs: networking: convert PLIP.txt to ReST 2020-04-30 12:56:37 -07:00
ppp_generic.rst docs: update ppp_generic.rst to document new ioctls 2020-12-10 13:57:36 -08:00
proc_net_tcp.rst docs: networking: convert proc_net_tcp.txt to ReST 2020-04-30 12:56:37 -07:00
psp.rst psp: add documentation 2025-09-18 12:32:06 +02:00
radiotap-headers.rst docs: networking: convert radiotap-headers.txt to ReST 2020-04-30 12:56:37 -07:00
rds.rst Documentation: Fix networking typos 2025-08-18 10:31:20 -06:00
regulatory.rst Documentation: networking: correct spelling 2023-01-31 13:00:47 +01:00
representors.rst Documentation: Add documentation for eswitch attribute 2024-03-28 18:20:08 -07:00
rxrpc.rst Documentation: rxrpc: Demote three sections 2025-09-24 18:12:10 -07:00
scaling.rst net: move aRFS rmap management and CPU affinity to core 2025-02-26 19:51:37 -08:00
sctp.rst docs: networking: convert sctp.txt to ReST 2020-04-30 12:56:38 -07:00
secid.rst docs: networking: convert secid.txt to ReST 2020-04-30 12:56:38 -07:00
seg6-sysctl.rst doc: fix seg6_flowlabel path 2025-10-12 22:51:37 +01:00
segmentation-offloads.rst net: gso: restore ids of outer ip headers correctly 2025-09-25 12:42:49 +02:00
sfp-phylink.rst doc: sfp-phylink: update the porting guide with PCS handling 2024-03-07 15:27:05 +01:00
skbuff.rst skbuff: render the checksum comment to documentation 2022-05-10 17:48:37 -07:00
smc-sysctl.rst net/smc: handle -ENOMEM from smc_wr_alloc_link_mem gracefully 2025-10-30 13:31:43 +01:00
snmp_counter.rst docs: automarkup: linkify git revs 2023-11-17 13:13:24 -07:00
sriov.rst docs: net: document guidance of implementing the SR-IOV NDOs 2024-06-21 10:18:45 +01:00
statistics.rst net: docs: add missing features that can have stats 2025-10-20 18:31:25 -07:00
strparser.rst docs: networking: strparser: Fix a typo 2025-03-24 12:14:16 -07:00
switchdev.rst net: rename netns_local to netns_immutable 2025-03-04 12:44:48 +01:00
sysfs-tagging.rst Documentation: networking: correct spelling 2023-01-31 13:00:47 +01:00
tc-actions-env-rules.rst docs: networking: convert tc-actions-env-rules.txt to ReST 2020-04-30 12:56:38 -07:00
tc-queue-filters.rst Documentation: networking: TC queue based filtering 2022-10-25 10:32:40 +02:00
tcp-thin.rst docs: networking: convert tcp-thin.txt to ReST 2020-04-30 12:56:38 -07:00
tcp_ao.rst Documentation: networking/tcp_ao: typo and grammar fixes 2024-10-03 16:38:48 -07:00
team.rst docs: networking: convert team.txt to ReST 2020-04-30 12:56:38 -07:00
timestamping.rst docs: networking: timestamping: improve stacked PHC sentence 2025-05-13 15:40:54 -07:00
tipc.rst Documentation: tipc: fix formatting issue in tipc.rst 2024-11-19 11:17:13 +01:00
tls-handshake.rst net/handshake: Enable the SNI extension to work properly 2023-05-24 22:05:24 -07:00
tls-offload-layers.svg Documentation: add TLS offload documentation 2019-05-22 12:18:20 -07:00
tls-offload-reorder-bad.svg Documentation: add TLS offload documentation 2019-05-22 12:18:20 -07:00
tls-offload-reorder-good.svg Documentation: add TLS offload documentation 2019-05-22 12:18:20 -07:00
tls-offload.rst Documentation: tls_offload: fix typos and grammar 2024-11-28 12:09:06 +01:00
tls.rst net/tls: support setting the maximum payload size 2025-10-27 16:13:42 -07:00
tproxy.rst docs: tproxy: fix formatting for nft code block 2025-04-29 00:00:26 +02:00
tuntap.rst docs: networking: Replace strncpy() with strscpy() 2021-06-04 11:21:43 -06:00
udplite.rst docs: networking: convert udplite.txt to ReST 2020-05-01 12:24:40 -07:00
vrf.rst doc: Document unexpected tcp_l3mdev_accept=1 behavior 2021-08-23 11:53:24 +01:00
vxlan.rst docs: vxlan: add info about device features 2020-09-28 12:50:12 -07:00
x25-iface.rst docs: networking: fix x25-iface.rst heading & index order 2023-05-10 10:31:46 +01:00
x25.rst net: x25: Remove unimplemented X.25-over-LLC code stubs 2020-12-12 17:15:33 -08:00
xdp-rx-metadata.rst doc: xdp: Clarify driver implementation for XDP Rx metadata 2025-07-16 16:36:11 -07:00
xsk-tx-metadata.rst xsk: Add launch time hardware offload support to XDP Tx metadata 2025-02-20 15:13:45 -08:00