linux_dsm_epyc7002/Documentation/networking
Josh Hunt c04b79b6cf tcp: add new tcp_mtu_probe_floor sysctl
The current implementation of TCP MTU probing can considerably
underestimate the MTU on lossy connections allowing the MSS to get down to
48. We have found that in almost all of these cases on our networks these
paths can handle much larger MTUs meaning the connections are being
artificially limited. Even though TCP MTU probing can raise the MSS back up
we have seen this not to be the case causing connections to be "stuck" with
an MSS of 48 when heavy loss is present.

Prior to pushing out this change we could not keep TCP MTU probing enabled
b/c of the above reasons. Now with a reasonble floor set we've had it
enabled for the past 6 months.

The new sysctl will still default to TCP_MIN_SND_MSS (48), but gives
administrators the ability to control the floor of MSS probing.

Signed-off-by: Josh Hunt <johunt@akamai.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-09 13:03:30 -07:00
..
caif
device_drivers Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-07-11 10:55:49 -07:00
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-07-11 10:55:49 -07:00
mac80211_hwsim mac80211_hwsim: suggest nl80211 instead of wext driver in documentation 2016-10-17 11:38:01 +02:00
6lowpan.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
6pack.txt
af_xdp.rst xsk: sample kernel code is now in libbpf 2019-06-24 18:18:30 -07:00
alias.rst docs: networking: Convert alias.txt to rst 2018-07-18 15:28:27 -07:00
altera_tse.txt Documentation: networking: fix spelling mistakes 2016-04-28 14:21:13 -04:00
arcnet-hardware.txt
arcnet.txt
atm.txt
ax25.txt
batman-adv.rst batman-adv: Drop documentation about sysfs files 2019-03-25 09:31:35 +01:00
baycom.txt
bonding.txt bonding: add documentation for peer_notif_delay 2019-07-13 19:29:21 -07:00
bridge.rst docs: networking: Convert bridge.txt to rst 2018-07-18 15:28:27 -07:00
can_ucan_protocol.rst can: ucan: add driver for Theobroma Systems UCAN devices 2018-07-27 10:40:16 +02:00
can.rst docs: can.rst: fix a footnote reference 2018-06-15 12:48:59 -03:00
cdc_mbim.txt Documentation: fix usb related doc refs 2017-10-12 11:15:48 -06:00
checksum-offloads.rst doc: networking: shorten the main title in offloads documents 2019-01-07 15:27:51 -07:00
cops.txt
cxacru-cf.py
cxacru.txt
dccp.txt
dctcp.txt tcp: add rfc3168, section 6.1.1.1. fallback 2015-05-19 16:53:37 -04:00
decnet.txt Documentation: decnet: remove reference to CONFIG_DECNET_ROUTE_FWMARK 2019-04-21 11:25:11 -07:00
defza.txt FDDI: defza: Add support for DEC FDDIcontroller 700 TURBOchannel adapter 2018-10-15 21:46:06 -07:00
devlink-health.txt devlink: Add Documentation/networking/devlink-health.txt 2019-02-07 10:34:29 -08:00
devlink-info-versions.rst Documentation: networking: devlink-info-versions: Add fw.psid 2019-04-08 16:28:01 -07:00
devlink-params-bnxt.txt devlink: Add Documentation/networking/devlink-params-bnxt.txt 2018-10-04 13:49:43 -07:00
devlink-params-mlxsw.txt mlxsw: spectrum: add "acl_region_rehash_interval" devlink param 2019-02-08 15:02:50 -08:00
devlink-params.txt devlink: Add 'fw_load_policy' generic parameter 2018-12-03 13:55:43 -08:00
dns_resolver.txt doc: ReSTify keys-request-key.txt 2017-05-18 10:33:51 -06:00
driver.txt
eql.txt
failover.rst net: Introduce generic failover module 2018-05-28 22:59:54 -04:00
fib_trie.txt fib_trie.txt: fix typo 2014-12-15 11:45:15 -05:00
filter.txt docs/bpf: minor casing/punctuation fixes 2019-03-02 00:40:04 +01:00
fore200e.txt Doc: Change wikipedia's URL from http to https 2015-06-22 10:14:05 -06:00
framerelay.txt
gen_stats.txt net: sched: do not acquire qdisc spinlock in qdisc/class stats dump 2016-06-07 16:37:14 -07:00
generic_netlink.txt
generic-hdlc.txt
gtp.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
hinic.txt net-next/hinic: Initialize hw interface 2017-08-22 10:48:52 -07:00
ieee802154.rst doc: net: ieee802154: introduce IEEE 802.15.4 subsystem doc in rst style 2019-03-01 17:03:00 -08:00
ila.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
index.rst Documentation: add TLS offload documentation 2019-05-22 12:18:20 -07:00
ip_dynaddr.txt
ip-sysctl.txt tcp: add new tcp_mtu_probe_floor sysctl 2019-08-09 13:03:30 -07:00
ipddp.txt
iphase.txt
ipsec.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
ipv6.txt
ipvlan.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
ipvs-sysctl.txt ipvs: Document sysctl pmtu_disc 2017-03-16 13:33:39 +01:00
kapi.rst sfp: add documentation for kernel APIs 2017-12-05 11:16:19 -05:00
kcm.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
l2tp.txt net: l2tp: deprecate PPPOL2TP_MSG_* in favour of L2TP_MSG_* 2016-12-10 23:29:11 -05:00
lapb-module.txt
ltpc.txt
mac80211-auth-assoc-deauth.txt
mac80211-injection.txt mac80211: document only injected *_RADIOTAP_* flags 2016-04-05 10:48:57 +02:00
mpls-sysctl.txt Documentation/networking: fix default_ttl typo in mpls-sysctl 2019-07-01 10:41:33 -07:00
msg_zerocopy.rst doc: fix link to MSG_ZEROCOPY patchset 2019-03-18 09:50:21 -07:00
multiqueue.txt
net_dim.txt Documentation/networking: Add net DIM documentation 2018-03-22 14:50:44 -04:00
net_failover.rst docs: networking: Fix failover build warnings 2018-07-16 11:23:54 -07:00
netconsole.txt docs: fix locations of several documents that got moved 2016-10-24 08:12:35 -02:00
netdev-FAQ.rst Documentation: fix netdev-FAQ.rst markup warning 2019-05-01 09:12:51 -04:00
netdev-features.txt docs-networking: fix typo in define 2018-11-21 10:30:30 -08:00
netdevices.txt net: remove NETDEV_TX_LOCKED support 2016-04-26 15:53:05 -04:00
netfilter-sysctl.txt netfilter: allow logging from non-init namespaces 2017-02-02 14:31:58 +01:00
netif-msg.txt
nf_conntrack-sysctl.txt netfilter: conntrack: register sysctl table for gre 2018-12-21 00:51:25 +01:00
nf_flowtable.txt netfilter: nf_flowtable: remove duplicated transition in diagram 2019-03-19 15:02:52 +01:00
nfc.txt
openvswitch.txt openvswitch: Add support for unique flow IDs. 2015-01-26 15:45:50 -08:00
operstates.txt Documentation: bring operstate documentation up-to-date 2019-02-11 12:38:51 -08:00
packet_mmap.txt doc: remove out of date links and info from packet mmap 2018-03-16 10:48:52 -04:00
phonet.txt
phy.rst doc: phy: document some PHY_INTERFACE_MODE_xxx settings 2019-06-23 11:35:06 -07:00
pktgen.txt Documentation/pktgen: Clearify how-to use pktgen samples 2018-01-24 15:03:36 -05:00
PLIP.txt
ppp_generic.txt ppp: remove the PPPIOCDETACH ioctl 2018-05-24 22:55:07 -04:00
proc_net_tcp.txt
radiotap-headers.txt
ray_cs.txt
rds.txt linux-next: DOC: RDS: Fix a typo in rds.txt 2019-06-12 09:56:29 -07:00
regulatory.txt cfg80211: reg: remove support for built-in regdb 2017-10-11 13:18:51 +02:00
rxrpc.txt rxrpc: Allow the kernel to mark a call as being non-interruptible 2019-05-16 16:25:20 +01:00
scaling.rst doc: networking: integrate scaling document into doc tree 2019-01-20 19:10:49 -07:00
sctp.txt
secid.txt
seg6-sysctl.txt ipv6: sr: add documentation file for per-interface sysctls 2016-11-09 20:40:06 -05:00
segmentation-offloads.rst networking: : fix typos in code comments 2019-05-20 20:24:34 -04:00
sfp-phylink.rst net: phylink: Add struct phylink_config to PHYLINK API 2019-05-29 21:48:53 -07:00
skfp.txt
snmp_counter.rst networking: fix snmp_counter.rst Doc. Warnings 2019-03-17 19:37:08 -07:00
strparser.txt strparser: Corrected typo in documentation. 2018-06-24 16:40:20 +09:00
switchdev.txt switchdev: Remove unused transaction item queue 2019-03-01 21:35:19 -08:00
tc-actions-env-rules.txt net: sched: use counter to break reclassify loops 2015-05-13 15:08:14 -04:00
tcp-thin.txt
team.txt
timestamping.txt docs: ptp.txt: convert to ReST and move to driver-api 2019-06-14 14:31:27 -06:00
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 net/tls: partially revert fix transition through disconnect with close 2019-08-05 13:15:30 -07:00
tls.rst Documentation: add TLS offload documentation 2019-05-22 12:18:20 -07:00
tproxy.txt netfilter: doc: Add nf_tables part in tproxy.txt 2018-08-16 19:37:07 +02:00
tuntap.txt
udplite.txt Doc: networking: Fix URL for wiki.wireshark.org in udplite.txt 2015-06-12 14:21:29 -07:00
vrf.txt net: provide a sysctl raw_l3mdev_accept for raw socket lookup with VRFs 2018-11-07 16:12:38 -08:00
vxlan.txt documentation: bring vxlan documentation more up-to-date 2015-08-12 16:46:30 -07:00
x25-iface.txt
x25.txt
xfrm_device.txt net: switch secpath to use skb extension infrastructure 2018-12-19 11:21:38 -08:00
xfrm_proc.txt xfrm: update the stats documentation 2017-12-22 06:45:48 +01:00
xfrm_sync.txt Documentation: networking: fix spelling mistakes 2016-04-28 14:21:13 -04:00
xfrm_sysctl.txt
z8530book.rst docs-rst: convert scsi DocBook to ReST 2017-05-16 08:44:15 -03:00
z8530drv.txt