linux/net/core
Pablo Neira Ayuso 1fac52da59 net: flow_offload: consolidate indirect flow_block infrastructure
Tunnel devices provide no dev->netdev_ops->ndo_setup_tc(...) interface.
The tunnel device and route control plane does not provide an obvious
way to relate tunnel and physical devices.

This patch allows drivers to register a tunnel device offload handler
for the tc and netfilter frontends through flow_indr_dev_register() and
flow_indr_dev_unregister().

The frontend calls flow_indr_dev_setup_offload() that iterates over the
list of drivers that are offering tunnel device hardware offload
support and it sets up the flow block for this tunnel device.

If the driver module is removed, the indirect flow_block ends up with a
stale callback reference. The module removal path triggers the
dev_shutdown() path to remove the qdisc and the flow_blocks for the
physical devices. However, this is not useful for tunnel devices, where
relation between the physical and the tunnel device is not explicit.

This patch introduces a cleanup callback that is invoked when the driver
module is removed to clean up the tunnel device flow_block. This patch
defines struct flow_block_indr and it uses it from flow_block_cb to
store the information that front-end requires to perform the
flow_block_cb cleanup on module removal.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01 11:41:12 -07:00
..
bpf_sk_storage.c bpf: Implement CAP_BPF 2020-05-15 17:29:41 +02:00
datagram.c net: use indirect call wrappers for skb_copy_datagram_iter() 2020-03-25 11:30:40 -07:00
datagram.h
dev_addr_lists.c net: remove unnecessary variables and callback 2019-10-24 14:53:49 -07:00
dev_ioctl.c ethtool: add timestamping related string sets 2020-03-29 22:32:36 -07:00
dev.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-24 13:47:27 -07:00
devlink.c devlink: refactor end checks in devlink_nl_cmd_region_read_dumpit 2020-05-14 17:36:25 -07:00
drop_monitor.c drop_monitor: work around gcc-10 stringop-overflow warning 2020-05-01 15:45:16 -07:00
dst_cache.c
dst.c net/dst: use a smaller percpu_counter batch for dst entries accounting 2020-05-08 21:33:33 -07:00
failover.c
fib_notifier.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
fib_rules.c net: fib_rules: Correctly set table field when table number exceeds 8 bits 2020-02-16 18:38:24 -08:00
filter.c bpf: Add get{peer, sock}name attach types for sock_addr 2020-05-19 11:32:04 -07:00
flow_dissector.c flow_dissector: Parse multiple MPLS Label Stack Entries 2020-05-26 15:22:58 -07:00
flow_offload.c net: flow_offload: consolidate indirect flow_block infrastructure 2020-06-01 11:41:12 -07:00
gen_estimator.c net_sched: gen_estimator: extend packet counter to 64bit 2019-11-06 21:51:36 -08:00
gen_stats.c docs: networking: convert gen_stats.txt to ReST 2020-04-28 14:39:46 -07:00
gro_cells.c
hwbm.c
link_watch.c net: Add IF_OPER_TESTING 2020-04-20 12:43:24 -07:00
lwt_bpf.c net: add net available in build_state 2020-03-29 22:30:57 -07:00
lwtunnel.c net: ipv6: add rpl sr tunnel 2020-03-29 22:30:57 -07:00
Makefile ethtool: move to its own directory 2019-12-12 17:07:05 -08:00
neighbour.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-31 17:48:46 -07:00
net_namespace.c bpf: Add netns cookie and enable it for bpf cgroup hooks 2020-03-27 19:40:38 -07:00
net-procfs.c net: procfs: use index hashlist instead of name hashlist 2019-10-01 14:47:19 -07:00
net-sysfs.c net: core: recursively find netdev by device node 2020-05-15 10:18:49 -07:00
net-sysfs.h net-sysfs: add netdev_change_owner() 2020-02-26 20:07:25 -08:00
net-traces.c page_pool: add tracepoints for page_pool with details need by XDP 2019-06-19 11:23:13 -04:00
netclassid_cgroup.c cgroup, netclassid: remove double cond_resched 2020-04-21 15:44:30 -07:00
netevent.c
netpoll.c netpoll: accept NULL np argument in netpoll_send_skb() 2020-05-07 18:11:07 -07:00
netprio_cgroup.c netprio_cgroup: Fix unlimited memory leak of v2 cgroups 2020-05-09 20:59:21 -07:00
page_pool.c net: page pool: allow to pass zero flags to page_pool_init() 2020-03-29 21:49:20 -07:00
pktgen.c docs: networking: convert pktgen.txt to ReST 2020-04-30 12:56:37 -07:00
ptp_classifier.c
request_sock.c tcp: add rcu protection around tp->fastopen_rsk 2019-10-13 10:13:08 -07:00
rtnetlink.c net: rtnetlink: remove redundant assignment to variable err 2020-04-27 11:14:07 -07:00
scm.c net: ignore sock_from_file errors in __scm_install_fd 2020-05-13 12:30:54 -07:00
secure_seq.c
skbuff.c net: unexport skb_gro_receive() 2020-05-19 19:55:36 -07:00
skmsg.c bpf: Use bpf_prog_run_pin_on_cpu() at simple call sites. 2020-02-24 16:20:09 -08:00
sock_diag.c sock: make cookie generation global instead of per netns 2019-08-09 13:14:46 -07:00
sock_map.c bpf: Allow bpf_map_lookup_elem for SOCKMAP and SOCKHASH 2020-04-29 23:30:59 +02:00
sock_reuseport.c net: Generate reuseport group ID on group creation 2020-02-21 22:29:45 +01:00
sock.c net: add a new bind_add method 2020-05-29 13:10:39 -07:00
stream.c tcp: make sure EPOLLOUT wont be missed 2019-08-19 13:07:43 -07:00
sysctl_net_core.c netns: enable to inherit devconf from current netns 2020-05-16 13:46:37 -07:00
timestamping.c net: Introduce a new MII time stamping interface. 2019-12-25 19:51:33 -08:00
tso.c net: Use skb accessors in network core 2019-07-22 20:47:56 -07:00
utils.c net: Fix skb->csum update in inet_proto_csum_replace16(). 2020-01-24 20:54:30 +01:00
xdp.c xdp: Simplify xdp_return_{frame, frame_rx_napi, buff} 2020-05-21 17:31:27 -07:00