AuxXxilium/linux_dsm_epyc7002
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e3a5a1e8b6
linux_dsm_epyc7002/net
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Priyaranjan Jha e3a5a1e8b6 tcp: add SNMP counter for no. of duplicate segments reported by DSACK 
There are two existing SNMP counters, TCPDSACKRecv and TCPDSACKOfoRecv,
which are incremented depending on whether the DSACKed range is below
the cumulative ACK sequence number or not. Unfortunately, these both
implicitly assume each DSACK covers only one segment. This makes these
counters unusable for estimating spurious retransmit rates,
or real/non-spurious loss rate.

This patch introduces a new SNMP counter, TCPDSACKRecvSegs, which tracks
the estimated number of duplicate segments based on:
(DSACKed sequence range) / MSS. This counter is usable for estimating
spurious retransmit rates, or real/non-spurious loss rate.

Signed-off-by: Priyaranjan Jha <priyarjha@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-17 12:54:30 -07:00
..
6lowpan
9p net: 9p: kerneldoc fixes 2020-07-13 17:20:39 -07:00
802
8021q net: get rid of lockdep_set_class_and_subclass() 2020-06-28 21:37:23 -07:00
appletalk
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-06-13 16:27:13 -07:00
ax25 AX.25 Kconfig: Replace HTTP links with HTTPS ones 2020-07-13 12:34:06 -07:00
batman-adv batman-adv: Introduce a configurable per interface hop penalty 2020-06-26 10:37:11 +02:00
bluetooth
bpf bpf: Add tests for PTR_TO_BTF_ID vs. null comparison 2020-06-30 22:21:29 +02:00
bpfilter bpfilter: Allow to build bpfilter_umh as a module without static library 2020-07-14 12:37:06 -07:00
bridge net: bridge: Add port attribute IFLA_BRPORT_MRP_IN_OPEN 2020-07-14 13:46:43 -07:00
caif
can net: can: kerneldoc fixes 2020-07-13 17:20:39 -07:00
ceph libceph: don't omit used_replica in target_copy() 2020-06-16 16:02:08 +02:00
core Revert "net: sched: Pass root lock to Qdisc_ops.enqueue" 2020-07-16 16:48:34 -07:00
dcb dcb_doit: remove redundant skb check 2020-06-23 20:27:09 -07:00
dccp net: dccp: kerneldoc fixes 2020-07-13 17:20:39 -07:00
decnet decnet: dn_dev: Remove an unnecessary label. 2020-07-15 18:03:28 -07:00
dns_resolver
dsa net: dsa: felix: create a template for the DSA tags on xmit 2020-07-13 17:40:01 -07:00
ethernet
ethtool Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-11 00:46:00 -07:00
hsr Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-11 00:46:00 -07:00
ieee802154
ife
ipv4 tcp: add SNMP counter for no. of duplicate segments reported by DSACK 2020-07-17 12:54:30 -07:00
ipv6 net: ipv6: kerneldoc fixes 2020-07-13 17:20:39 -07:00
iucv
kcm
key
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-11 00:46:00 -07:00
l3mdev l3mdev: add infrastructure for table to VRF mapping 2020-06-20 17:22:22 -07:00
lapb
llc net: llc: kerneldoc fixes 2020-07-13 17:20:39 -07:00
mac80211 net: mac80211: kerneldoc fixes 2020-07-13 17:20:39 -07:00
mac802154
mpls
mptcp mptcp: silence warning in subflow_data_ready() 2020-07-17 12:47:00 -07:00
ncsi
netfilter net: sched: Pass qdisc reference in struct flow_block_offload 2020-07-13 17:22:21 -07:00
netlabel net: netlabel: kerneldoc fixes 2020-07-13 17:20:40 -07:00
netlink genetlink: remove genl_bind 2020-07-01 15:49:11 -07:00
netrom
nfc net: nfc: kerneldoc fixes 2020-07-13 17:20:40 -07:00
nsh
openvswitch net: openvswitch: reorder masks array based on usage 2020-07-17 10:36:50 -07:00
packet af_packet: TPACKET_V3: replace busy-wait loop 2020-07-16 11:40:39 -07:00
phonet
psample
qrtr net: qrtr: Fix an out of bounds read qrtr_endpoint_post() 2020-06-30 18:36:13 -07:00
rds rds: If one path needs re-connection, check all and re-connect 2020-07-01 17:35:17 -07:00
rfkill
rose
rxrpc net: rxrpc: kerneldoc fixes 2020-07-13 17:20:40 -07:00
sched Revert "net: sched: Pass root lock to Qdisc_ops.enqueue" 2020-07-16 16:48:34 -07:00
sctp sctp: Don't advertise IPv4 addresses if ipv6only is set on the socket 2020-06-25 16:11:33 -07:00
smc net/smc: tolerate future SMCD versions 2020-07-08 12:35:15 -07:00
strparser
sunrpc Fixes for a umask bug on exported filesystems lacking ACL support, a 2020-07-02 20:35:33 -07:00
switchdev net: switchdev: kerneldoc fixes 2020-07-13 17:20:40 -07:00
tipc net: tipc: kerneldoc fixes 2020-07-13 17:20:40 -07:00
tls net/tls: Add asynchronous resync 2020-06-27 14:00:22 -07:00
unix
vmw_vsock
wimax
wireless net: wireless: kerneldoc fixes 2020-07-13 17:20:40 -07:00
x25 net: x25: kerneldoc fixes 2020-07-13 17:20:40 -07:00
xdp Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-07-13 18:04:05 -07:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-11 00:46:00 -07:00
compat.c
devres.c net: devres: rename the release callback of devm_register_netdev() 2020-06-30 15:57:34 -07:00
Kconfig net: ethtool: Remove PHYLIB direct dependency 2020-07-07 15:41:05 -07:00
Makefile
socket.c net: socket: Move kerneldoc next to function it documents 2020-07-13 17:20:40 -07:00
sysctl_net.c