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eaa72dc47488d599439cd0fd0f8c4f1bcb3906bb
linux/include/net
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Eric Dumazet eaa72dc474 neigh: increase queue_len_bytes to match wmem_default 
Florian reported UDP xmit drops that could be root caused to the
too small neigh limit.

Current limit is 64 KB, meaning that even a single UDP socket would hit
it, since its default sk_sndbuf comes from net.core.wmem_default
(~212992 bytes on 64bit arches).

Once ARP/ND resolution is in progress, we should allow a little more
packets to be queued, at least for one producer.

Once neigh arp_queue is filled, a rogue socket should hit its sk_sndbuf
limit and either block in sendmsg() or return -EAGAIN.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 16:10:50 -07:00
..
9p
9p: Implement show_options
2017-07-11 06:08:58 -04:00
bluetooth
Bluetooth: Set LE Default PHY preferences
2017-05-18 13:52:49 +02:00
caif
…
iucv
s390/iucv: do not use arrays as argument
2015-09-21 16:03:04 -07:00
netfilter
net: convert nf_bridge_info.use from atomic_t to refcount_t
2017-07-01 07:39:07 -07:00
netns
ipv6: Add sysctl for per namespace flow label reflection
2017-08-24 18:05:43 -07:00
nfc
NFC: Add nfc_dbg() macro
2017-04-05 10:15:20 +02:00
phonet
sock: struct proto hash function may error
2016-02-11 03:54:14 -05:00
sctp
sctp: fix some indents in sm_make_chunk.c
2017-08-11 10:02:44 -07:00
tc_act
net: sched: add couple of goto_chain helpers
2017-08-23 20:44:32 -07:00
6lowpan.h
6lowpan: Fix IID format for Bluetooth
2017-04-12 22:02:36 +02:00
act_api.h
net: sched: add termination action to allow goto chain
2017-05-17 15:22:13 -04:00
addrconf.h
ipv6: fix NULL dereference in ip6_route_dev_notify()
2017-08-15 17:06:34 -07:00
af_ieee802154.h
ieee802154: af_ieee802154: fix typo in comment.
2015-09-17 13:20:05 +02:00
af_rxrpc.h
rxrpc: Allow failed client calls to be retried
2017-08-29 10:55:20 +01:00
af_unix.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-07-21 03:38:43 +01:00
af_vsock.h
VSOCK: Add vsockmon tap functions
2017-04-24 12:35:56 -04:00
ah.h
…
arp.h
net: convert neighbour.refcnt from atomic_t to refcount_t
2017-07-01 07:39:07 -07:00
atmclip.h
…
ax25.h
net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t
2017-07-04 22:35:19 +01:00
ax88796.h
…
bond_3ad.h
bonding: 3ad: apply ad_actor settings changes immediately
2016-02-09 04:45:49 -05:00
bond_alb.h
…
bond_options.h
bonding: Prevent duplicate userspace notification
2017-05-27 18:51:41 -04:00
bonding.h
bonding: require speed/duplex only for 802.3ad, alb and tlb
2017-08-11 14:21:42 -07:00
busy_poll.h
net: fix compilation when busy poll is not enabled
2017-08-11 14:59:24 -07:00
calipso.h
net, calipso: convert calipso_doi.refcount from atomic_t to refcount_t
2017-07-04 22:35:16 +01:00
cfg80211-wext.h
…
cfg80211.h
nl80211: add authorized flag to ROAM event
2017-06-13 11:04:37 +02:00
cfg802154.h
ieee802154: add netns support
2016-07-08 12:20:57 +02:00
checksum.h
csum: eliminate sparse warning in remcsum_unadjust()
2017-01-20 12:12:13 -05:00
cipso_ipv4.h
net, ipv4: convert cipso_v4_doi.refcount from atomic_t to refcount_t
2017-07-04 01:29:04 -07:00
cls_cgroup.h
cls_cgroup: get sk_classid only from full sockets
2016-04-19 20:09:25 -04:00
codel_impl.h
codel: split into multiple files
2016-04-25 16:44:27 -04:00
codel_qdisc.h
net_sched: fq_codel: cache skb->truesize into skb->cb
2016-06-25 12:19:35 -04:00
codel.h
codel: split into multiple files
2016-04-25 16:44:27 -04:00
compat.h
packet: compat support for sock_fprog
2016-06-09 23:41:03 -07:00
datalink.h
…
dcbevent.h
…
dcbnl.h
…
devlink.h
devlink: Fix devlink_dpipe_table_register() stub signature.
2017-08-24 18:10:46 -07:00
dn_dev.h
…
dn_fib.h
net, decnet: convert dn_fib_info.fib_clntref from atomic_t to refcount_t
2017-07-04 22:35:15 +01:00
dn_neigh.h
netfilter: Pass net into okfn
2015-09-17 17:18:37 -07:00
dn_nsp.h
…
dn_route.h
…
dn.h
…
dsa.h
dsa: remove unused net_device arg from handlers
2017-08-21 10:39:11 -07:00
dsfield.h
…
dst_cache.h
net: add dst_cache support
2016-02-16 20:21:48 -05:00
dst_metadata.h
net: store port/representator id in metadata_dst
2017-06-25 11:42:01 -04:00
dst_ops.h
net: add confirm_neigh method to dst_ops
2017-02-07 13:07:46 -05:00
dst.h
ipv4: convert dst_metrics.refcnt from atomic_t to refcount_t
2017-08-18 15:14:07 -07:00
erspan.h
gre: introduce native tunnel support for ERSPAN
2017-08-22 14:29:30 -07:00
esp.h
esp6: Reorganize esp_output
2017-04-14 10:06:42 +02:00
ethoc.h
net/ethoc: support big-endian register layout
2015-09-23 15:33:15 -07:00
fib_notifier.h
net: core: Make the FIB notification chain generic
2017-08-03 15:35:59 -07:00
fib_rules.h
net: fib_rules: Implement notification logic in core
2017-08-03 15:35:59 -07:00
firewire.h
…
flow_dissector.h
net/flow_dissector: add support for dissection of misc ip header fields
2017-06-04 18:12:23 -04:00
flow.h
net: Extend struct flowi6 with multipath hash
2017-08-24 18:21:17 -07:00
fou.h
fou: Add encap ops for IPv6 tunnels
2016-05-20 18:03:16 -04:00
fq_impl.h
fq.h: Port memory limit mechanism from fq_codel
2016-09-30 13:29:21 +02:00
fq.h
fq.h: Port memory limit mechanism from fq_codel
2016-09-30 13:29:21 +02:00
garp.h
…
gen_stats.h
net_sched: gen_estimator: complete rewrite of rate estimators
2016-12-05 15:21:59 -05:00
genetlink.h
genetlink: remove ops_list from genetlink header.
2017-06-05 10:54:55 -04:00
geneve.h
net: Remove deprecated tunnel specific UDP offload functions
2016-06-17 20:23:32 -07:00
gre.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-08-18 01:17:32 -04:00
gro_cells.h
gro_cells: move to net/core/gro_cells.c
2017-02-08 14:38:18 -05:00
gtp.h
gtp: #define #define _GTP_H_ and not #define _GTP_H
2016-07-25 17:55:43 -07:00
gue.h
…
hwbm.h
net: add a hardware buffer management helper API
2016-03-14 12:19:46 -04:00
icmp.h
net: snmp: kill STATS_BH macros
2016-04-27 22:48:25 -04:00
ieee80211_radiotap.h
wireless: radiotap: rewrite the radiotap header file
2017-01-25 16:00:33 +01:00
ieee802154_netdev.h
mac802154: constify ieee802154_llsec_ops structure
2016-01-04 20:40:41 +01:00
if_inet6.h
net, ipv6: convert ifacaddr6.aca_refcnt from atomic_t to refcount_t
2017-07-04 01:29:04 -07:00
ife.h
net: Introduce ife encapsulation module
2017-02-03 15:16:45 -05:00
ila.h
ila: Add generic ILA translation facility
2015-12-15 23:25:20 -05:00
inet6_connection_sock.h
inet: drop ->bind_conflict
2017-01-18 13:04:28 -05:00
inet6_hashtables.h
net: ipv6: add second dif to inet6 socket lookups
2017-08-07 11:39:22 -07:00
inet_common.h
net: Work around lockdep limitation in sockets that use sockets
2017-03-09 18:23:27 -08:00
inet_connection_sock.h
tcp: ULP infrastructure
2017-06-15 12:12:40 -04:00
inet_ecn.h
ipv6: suppress sparse warnings in IP6_ECN_set_ce()
2016-08-13 15:08:00 -07:00
inet_frag.h
Merge branch 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2017-07-06 08:59:41 -07:00
inet_hashtables.h
net: ipv4: add second dif to inet socket lookups
2017-08-07 11:39:21 -07:00
inet_sock.h
net/tcp-fastopen: Add new API support
2017-01-25 14:04:38 -05:00
inet_timewait_sock.h
ipv4: Namespaceify tcp_tw_recycle and tcp_max_tw_buckets knob
2016-12-29 11:38:31 -05:00
inetpeer.h
inetpeer: remove AVL implementation in favor of RB tree
2017-07-17 08:59:01 -07:00
ip6_checksum.h
ipv6: Pass proto to csum_ipv6_magic as __u8 instead of unsigned short
2016-03-13 23:55:13 -04:00
ip6_fib.h
ipv6: fib: Provide offload indication using nexthop flags
2017-08-15 17:05:03 -07:00
ip6_route.h
ipv6: Use rt6i_idev index for echo replies to a local address
2017-08-29 15:32:25 -07:00
ip6_tunnel.h
ip6_tunnel: Allow policy-based routing through tunnels
2017-04-21 13:21:30 -04:00
ip_fib.h
net: fib_rules: Implement notification logic in core
2017-08-03 15:35:59 -07:00
ip_tunnels.h
gre: add collect_md mode to ERSPAN tunnel
2017-08-28 15:04:52 -07:00
ip_vs.h
ipvs: remove unused function ip_vs_set_state_timeout
2017-04-28 12:00:10 +02:00
ip.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-08-21 17:06:42 -07:00
ipcomp.h
…
ipconfig.h
…
ipv6.h
net, ipv6: convert ipv6_txoptions.refcnt from atomic_t to refcount_t
2017-07-04 01:29:03 -07:00
ipx.h
net, ipx: convert ipx_route.refcnt from atomic_t to refcount_t
2017-07-04 22:35:17 +01:00
iw_handler.h
wext: uninline stream addition functions
2017-01-13 09:38:42 +01:00
kcm.h
kcm: Use stream parser
2016-08-17 19:36:23 -04:00
l3mdev.h
net: ipv4: Do not drop to make_route if oif is l3mdev
2016-10-13 12:05:26 -04:00
lapb.h
net, lapb: convert lapb_cb.refcnt from atomic_t to refcount_t
2017-07-04 22:35:16 +01:00
lib80211.h
…
llc_c_ac.h
…
llc_c_ev.h
…
llc_c_st.h
…
llc_conn.h
…
llc_if.h
…
llc_pdu.h
…
llc_s_ac.h
…
llc_s_ev.h
…
llc_s_st.h
…
llc_sap.h
…
llc.h
net, llc: convert llc_sap.refcnt from atomic_t to refcount_t
2017-07-04 22:35:15 +01:00
lwtunnel.h
net: add extack arg to lwtunnel build state
2017-05-30 11:55:32 -04:00
mac80211.h
mac80211: add api to start ba session timer expired flow
2017-08-09 09:49:42 +03:00
mac802154.h
ieee802154: cleanup WARN_ON for fc fetch
2016-07-08 13:23:12 +02:00
mip6.h
…
mld.h
…
mpls_iptunnel.h
net: mpls: Increase max number of labels for lwt encap
2017-04-01 20:21:44 -07:00
mpls.h
openvswitch: use mpls_hdr
2016-10-03 02:00:22 -04:00
mrp.h
…
ncsi.h
net/ncsi: Configure VLAN tag filter
2017-08-28 16:49:49 -07:00
ndisc.h
net: convert neighbour.refcnt from atomic_t to refcount_t
2017-07-01 07:39:07 -07:00
neighbour.h
Merge tag 'gcc-plugins-v4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2017-07-19 08:55:18 -07:00
net_namespace.h
net: core: Make the FIB notification chain generic
2017-08-03 15:35:59 -07:00
net_ratelimit.h
…
netevent.h
neigh: Send a notification when DELAY_PROBE_TIME changes
2016-07-05 09:06:29 -07:00
netlabel.h
net: convert netlbl_lsm_cache.refcount from atomic_t to refcount_t
2017-07-01 07:39:09 -07:00
netlink.h
net netlink: Add new type NLA_BITFIELD32
2017-07-30 19:28:08 -07:00
netprio_cgroup.h
net: wrap sock->sk_cgrp_prioidx and ->sk_classid inside a struct
2015-12-08 22:02:33 -05:00
netrom.h
net, netrom: convert nr_node.refcount from atomic_t to refcount_t
2017-07-04 22:35:17 +01:00
nexthop.h
…
nl802154.h
ieee802154: add netns support
2016-07-08 12:20:57 +02:00
nsh.h
net: add NSH header structures and helpers
2017-08-29 15:16:52 -07:00
p8022.h
…
ping.h
net: ping: make ping_v6_sendmsg static
2016-03-23 22:09:58 -04:00
pkt_cls.h
net: sched: remove cops->tcf_cl_offload
2017-08-11 13:47:01 -07:00
pkt_sched.h
net: sched: Add helpers to identify classids
2017-08-11 13:47:00 -07:00
pptp.h
pptp: Refactor the struct and macros of PPTP codes
2016-08-15 10:55:53 -07:00
protocol.h
net: Add sysctl to toggle early demux for tcp and udp
2017-03-24 13:17:07 -07:00
psample.h
net: Introduce psample, a new genetlink channel for packet sampling
2017-01-24 13:44:28 -05:00
psnap.h
…
raw.h
net: ipv4: add second dif to raw socket lookups
2017-08-07 11:39:21 -07:00
rawv6.h
net: ipv6: add second dif to raw socket lookups
2017-08-07 11:39:22 -07:00
red.h
ktime: Get rid of the union
2016-12-25 17:21:22 +01:00
regulatory.h
…
request_sock.h
net: convert sock.sk_refcnt from atomic_t to refcount_t
2017-07-01 07:39:08 -07:00
rose.h
…
route.h
ipv4: call dst_hold_safe() properly
2017-06-17 22:54:00 -04:00
rtnetlink.h
rtnetlink: add RTNL_FLAG_DOIT_UNLOCKED
2017-08-09 16:57:38 -07:00
sch_generic.h
net_sched: kill u32_node pointer in Qdisc
2017-08-25 17:19:10 -07:00
scm.h
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
secure_seq.h
tcp: Namespaceify sysctl_tcp_timestamps
2017-06-08 10:53:29 -04:00
seg6_hmac.h
ipv6: sr: add core files for SR HMAC support
2016-11-09 20:40:06 -05:00
seg6.h
ipv6: sr: add support for ip4ip6 encapsulation
2017-08-25 17:10:23 -07:00
slhc_vj.h
…
smc.h
smc: netlink interface for SMC sockets
2017-01-09 16:07:41 -05:00
snmp.h
net: snmp: fix 64bit stats on 32bit arches
2016-04-28 11:49:45 -04:00
sock_reuseport.h
soreuseport: fix NULL ptr dereference SO_REUSEPORT after bind
2016-01-19 14:44:23 -05:00
sock.h
neigh: increase queue_len_bytes to match wmem_default
2017-08-29 16:10:50 -07:00
Space.h
…
stp.h
…
strparser.h
strparser: initialize all callbacks
2017-08-24 21:57:50 -07:00
switchdev.h
net: switchdev: Remove bridge bypass support from switchdev
2017-08-07 14:48:48 -07:00
tcp_states.h
…
tcp.h
tcp: Extend SOF_TIMESTAMPING_RX_SOFTWARE to TCP recvmsg
2017-08-23 20:30:47 -07:00
timewait_sock.h
inet: remove BUG_ON() in twsk_destructor()
2015-07-09 15:12:20 -07:00
tls.h
tls: kernel TLS support
2017-06-15 12:12:40 -04:00
transp_v6.h
ipv6: add new struct ipcm6_cookie
2016-05-03 16:08:14 -04:00
tso.h
net: define the TSO header size in net/tso.h
2017-08-23 20:42:09 -07:00
tun_proto.h
vxlan: factor out VXLAN-GPE next protocol
2017-08-29 15:16:52 -07:00
udp_tunnel.h
net: add infrastructure to un-offload UDP tunnel port
2017-07-24 13:52:59 -07:00
udp.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-08-15 20:23:23 -07:00
udplite.h
udp: use a separate rx queue for packet reception
2017-05-16 15:41:29 -04:00
vsock_addr.h
…
vxlan.h
vxlan: factor out VXLAN-GPE next protocol
2017-08-29 15:16:52 -07:00
wext.h
dev_ioctl: copy only the smaller struct iwreq for wext
2017-06-14 13:52:44 +02:00
wimax.h
…
x25.h
net, x25: convert x25_neigh.refcnt from atomic_t to refcount_t
2017-07-04 22:35:18 +01:00
x25device.h
…
xfrm.h
net: xfrm: support setting an output mark.
2017-08-11 07:03:00 +02:00