Amit Cohen 907eea4868 net: ipv6: Emit notification when fib hardware flags are changed ... After installing a route to the kernel, user space receives an acknowledgment, which means the route was installed in the kernel, but not necessarily in hardware. The asynchronous nature of route installation in hardware can lead to a routing daemon advertising a route before it was actually installed in hardware. This can result in packet loss or mis-routed packets until the route is installed in hardware. It is also possible for a route already installed in hardware to change its action and therefore its flags. For example, a host route that is trapping packets can be "promoted" to perform decapsulation following the installation of an IPinIP/VXLAN tunnel. Emit RTM_NEWROUTE notifications whenever RTM_F_OFFLOAD/RTM_F_TRAP flags are changed. The aim is to provide an indication to user-space (e.g., routing daemons) about the state of the route in hardware. Introduce a sysctl that controls this behavior. Keep the default value at 0 (i.e., do not emit notifications) for several reasons: - Multiple RTM_NEWROUTE notification per-route might confuse existing routing daemons. - Convergence reasons in routing daemons. - The extra notifications will negatively impact the insertion rate. - Not all users are interested in these notifications. Move fib6_info_hw_flags_set() to C file because it is no longer a short function. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2021-02-02 17:45:59 -08:00
..
9p	9p: apply review requests for fid refcounting	2020-11-19 17:21:34 +01:00
bluetooth	Bluetooth: Change MGMT security info CMD to be more generic	2020-12-07 17:01:42 +02:00
caif	net: caif: Remove unused caif SPI driver	2020-09-29 14:02:53 -07:00
iucv	net/af_iucv: don't track individual TX skbs for TRANS_HIPER sockets	2021-01-28 20:36:21 -08:00
netfilter	netfilter: nft_dynset: honor stateful expressions in set definition	2021-01-16 18:57:26 +01:00
netns	net: ipv6: Emit notification when fib hardware flags are changed	2021-02-02 17:45:59 -08:00
nfc	net/nfc/nci: Support NCI 2.x initial sequence	2020-12-04 17:47:35 -08:00
phonet	…
sctp	sctp: bring inet(6)_skb_parm back to sctp_input_cb	2020-11-05 14:27:30 -08:00
tc_act	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-10-15 12:43:21 -07:00
6lowpan.h	…
Space.h	…
act_api.h	net_sched: fix RTNL deadlock again caused by request_module()	2021-01-18 20:13:55 -08:00
addrconf.h	ipv6: some fixes for ipv6_dev_find()	2020-08-18 15:58:53 -07:00
af_ieee802154.h	…
af_rxrpc.h	rxrpc: Make rxrpc_kernel_get_srtt() indicate validity	2020-08-20 18:21:28 +01:00
af_unix.h	…
af_vsock.h	…
ah.h	…
arp.h	…
atmclip.h	…
ax25.h	…
ax88796.h	…
bareudp.h	…
bond_3ad.h	…
bond_alb.h	…
bond_options.h	…
bonding.h	net/bonding: Declare TLS RX device offload support	2021-01-18 20:48:40 -08:00
bpf_sk_storage.h	bpf: Allow using bpf_sk_storage in FENTRY/FEXIT/RAW_TP	2020-11-12 18:39:28 -08:00
busy_poll.h	net, xdp, xsk: fix __sk_mark_napi_id_once napi_id error	2020-12-01 15:51:19 +01:00
calipso.h	…
cfg80211-wext.h	…
cfg80211.h	cfg80211: avoid holding the RTNL when calling the driver	2021-01-26 11:55:50 +01:00
cfg802154.h	…
checksum.h	saner calling conventions for csum_and_copy_..._user()	2020-08-20 15:45:15 -04:00
cipso_ipv4.h	…
cls_cgroup.h	…
codel.h	…
codel_impl.h	…
codel_qdisc.h	…
compat.h	compat: always include linux/compat.h from net/compat.h	2020-11-23 13:31:54 -08:00
datalink.h	…
dcbevent.h	…
dcbnl.h	…
devlink.h	mlx5 subfunction support	2021-01-28 16:57:19 -08:00
dn.h	…
dn_dev.h	…
dn_fib.h	…
dn_neigh.h	…
dn_nsp.h	…
dn_route.h	…
dsa.h	net: dsa: add a second tagger for Ocelot switches based on tag_8021q	2021-01-29 21:25:27 -08:00
dsfield.h	…
dst.h	mpls: drop skb's dst in mpls_forward()	2020-11-03 12:55:53 -08:00
dst_cache.h	…
dst_metadata.h	…
dst_ops.h	…
erspan.h	…
esp.h	…
espintcp.h	…
ethoc.h	…
failover.h	…
fib_notifier.h	…
fib_rules.h	…
firewire.h	…
flow.h	lsm,selinux: pass flowi_common instead of flowi to the LSM hooks	2020-11-23 18:36:21 -05:00
flow_dissector.h	…
flow_offload.h	net: flow_offload: Add original direction flag to ct_metadata	2021-01-29 18:05:30 -08:00
fou.h	…
fq.h	net/fq_impl: do not maintain a backlog-sorted list of flows	2021-01-21 13:33:45 +01:00
fq_impl.h	net/fq_impl: do not maintain a backlog-sorted list of flows	2021-01-21 13:33:45 +01:00
garp.h	…
gen_stats.h	…
genetlink.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-10-05 18:40:01 -07:00
geneve.h	…
gre.h	ip_gre: add csum offload support for gre header	2021-01-29 20:39:14 -08:00
gro_cells.h	…
gtp.h	…
gue.h	…
hwbm.h	…
icmp.h	…
ieee80211_radiotap.h	mac80211: add radiotap flag to assure frames are not reordered	2020-11-06 11:01:01 +01:00
ieee802154_netdev.h	…
if_inet6.h	…
ife.h	…
ila.h	…
inet6_connection_sock.h	…
inet6_hashtables.h	…
inet_common.h	…
inet_connection_sock.h	tcp: shrink inet_connection_sock icsk_mtup enabled and probe_size	2021-01-29 22:48:30 -08:00
inet_ecn.h	inet_ecn: Use csum16_add() helper for IP_ECN_set_* helpers	2020-12-14 18:38:58 -08:00
inet_frag.h	inet: frags: batch fqdir destroy works	2020-12-12 15:08:54 -08:00
inet_hashtables.h	tcp: fix race condition when creating child sockets from syncookies	2020-11-23 16:32:33 -08:00
inet_sock.h	inet: remove inet_sk_copy_descendant()	2020-08-26 07:33:19 -07:00
inet_timewait_sock.h	…
inetpeer.h	…
ip.h	inet: constify inet_sdif() argument	2020-11-10 17:56:54 -08:00
ip6_checksum.h	…
ip6_fib.h	net: ipv6: Emit notification when fib hardware flags are changed	2021-02-02 17:45:59 -08:00
ip6_route.h	net: allow user to set metric on default route learned via Router Advertisement	2021-01-26 18:39:45 -08:00
ip6_tunnel.h	…
ip_fib.h	…
ip_tunnels.h	Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-19 19:08:46 -08:00
ip_vs.h	ipvs: remove dependency on ip6_tables	2020-08-31 23:06:51 +02:00
ipcomp.h	…
ipconfig.h	…
ipv6.h	ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module	2020-11-19 10:49:50 -08:00
ipv6_frag.h	ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module	2020-11-19 10:49:50 -08:00
ipv6_stubs.h	ipv6: add ipv6_fragment hook in ipv6_stub	2020-08-31 12:26:39 -07:00
ipx.h	…
iw_handler.h	…
kcm.h	…
l3mdev.h	…
lag.h	…
lapb.h	net: lapb: Add locking to the lapb module	2021-01-26 17:53:45 -08:00
lib80211.h	…
llc.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	…
lwtunnel.h	…
mac80211.h	cfg80211: avoid holding the RTNL when calling the driver	2021-01-26 11:55:50 +01:00
mac802154.h	…
macsec.h	…
mip6.h	…
mld.h	…
mpls.h	…
mpls_iptunnel.h	…
mptcp.h	mptcp: add port support for ADD_ADDR suboption writing	2020-12-09 19:02:15 -08:00
mrp.h	…
ncsi.h	…
ndisc.h	ipv6: ndisc: adjust ndisc_ifinfo_sysctl_change prototype	2020-08-24 06:40:07 -07:00
neighbour.h	net: Exempt multicast addresses from five-second neighbor lifetime	2020-11-13 14:24:39 -08:00
net_failover.h	…
net_namespace.h	Networking updates for 5.11	2020-12-15 13:22:29 -08:00
net_ratelimit.h	…
netevent.h	…
netlabel.h	…
netlink.h	treewide: rename nla_strlcpy to nla_strscpy.	2020-11-16 08:08:54 -08:00
netprio_cgroup.h	…
netrom.h	…
nexthop.h	nexthop: Use enum to encode notification type	2021-01-28 20:49:52 -08:00
nl802154.h	…
nsh.h	…
p8022.h	…
page_pool.h	net: page_pool: Add bulk support for ptr_ring	2020-11-14 02:29:00 +01:00
pie.h	…
ping.h	…
pkt_cls.h	sch_htb: Hierarchical QoS hardware offload	2021-01-22 20:41:29 -08:00
pkt_sched.h	net: sched: convert tasklets to use new tasklet_setup() API	2020-11-07 10:41:15 -08:00
pptp.h	…
protocol.h	…
psample.h	…
psnap.h	…
raw.h	…
rawv6.h	…
red.h	net: sched: prevent invalid Scell_log shift count	2020-12-28 14:52:54 -08:00
regulatory.h	…
request_sock.h	tcp: bpf: Optionally store mac header in TCP_SAVE_SYN	2020-08-24 14:35:00 -07:00
rose.h	…
route.h	lsm,selinux: pass flowi_common instead of flowi to the LSM hooks	2020-11-23 18:36:21 -05:00
rpl.h	…
rsi_91x.h	…
rtnetlink.h	…
rtnh.h	…
sch_generic.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-02-02 14:21:31 -08:00
scm.h	…
secure_seq.h	…
seg6.h	…
seg6_hmac.h	…
seg6_local.h	…
slhc_vj.h	…
smc.h	net/smc: introduce CHID callback for ISM devices	2020-09-28 15:19:03 -07:00
snmp.h	…
sock.h	tcp: fix TCP socket rehash stats mis-accounting	2021-01-19 19:47:20 -08:00
sock_reuseport.h	…
stp.h	…
strparser.h	…
switchdev.h	net: switchdev: delete the transaction object	2021-01-11 16:00:57 -08:00
tcp.h	tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN	2021-01-23 21:33:01 -08:00
tcp_states.h	…
timewait_sock.h	…
tipc.h	…
tls.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-27 18:25:27 -08:00
tls_toe.h	…
transp_v6.h	…
tso.h	…
tun_proto.h	…
udp.h	udp: ipv4: manipulate network header of NATed UDP GRO fraglist	2021-02-01 20:02:16 -08:00
udp_tunnel.h	udp_tunnel: reshuffle NETIF_F_RX_UDP_TUNNEL_PORT checks	2021-01-07 12:53:29 -08:00
udplite.h	…
vsock_addr.h	…
vxlan.h	net: sched: only keep the available bits when setting vxlan md->gbp	2020-09-14 16:49:39 -07:00
wext.h	…
x25.h	…
x25device.h	…
xdp.h	net, xdp: Introduce xdp_prepare_buff utility routine	2021-01-08 13:39:24 -08:00
xdp_priv.h	…
xdp_sock.h	xsk: Fix race in SKB mode transmit with shared cq	2020-12-18 16:10:21 +01:00
xdp_sock_drv.h	xsk: Introduce batched Tx descriptor interfaces	2020-11-17 22:07:40 +01:00
xfrm.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-10-05 18:40:01 -07:00
xsk_buff_pool.h	xsk: Fix race in SKB mode transmit with shared cq	2020-12-18 16:10:21 +01:00