linux/net/core
Lorenzo Bianconi 9216477449 bpf: cpumap: Add the possibility to attach an eBPF program to cpumap
Introduce the capability to attach an eBPF program to cpumap entries.
The idea behind this feature is to add the possibility to define on
which CPU run the eBPF program if the underlying hw does not support
RSS. Current supported verdicts are XDP_DROP and XDP_PASS.

This patch has been tested on Marvell ESPRESSObin using xdp_redirect_cpu
sample available in the kernel tree to identify possible performance
regressions. Results show there are no observable differences in
packet-per-second:

$./xdp_redirect_cpu --progname xdp_cpu_map0 --dev eth0 --cpu 1
rx: 354.8 Kpps
rx: 356.0 Kpps
rx: 356.8 Kpps
rx: 356.3 Kpps
rx: 356.6 Kpps
rx: 356.6 Kpps
rx: 356.7 Kpps
rx: 355.8 Kpps
rx: 356.8 Kpps
rx: 356.8 Kpps

Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/5c9febdf903d810b3415732e5cd98491d7d9067a.1594734381.git.lorenzo@kernel.org
2020-07-16 17:00:32 +02:00
..
bpf_sk_storage.c bpf: Set map_btf_{name, id} for all map types 2020-06-22 22:22:58 +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.c bpf: cpumap: Add the possibility to attach an eBPF program to cpumap 2020-07-16 17:00:32 +02:00
dev_addr_lists.c net: explain the lockdep annotations for dev_uc_unsync() 2020-06-28 21:38:27 -07:00
dev_ioctl.c ethtool: add timestamping related string sets 2020-03-29 22:32:36 -07:00
devlink.c devlink: Fix use-after-free when destroying health reporters 2020-07-13 17:29:59 -07:00
drop_monitor.c net: Add MODULE_DESCRIPTION entries to network modules 2020-06-20 21:33:57 -07:00
dst.c net/dst: use a smaller percpu_counter batch for dst entries accounting 2020-05-08 21:33:33 -07:00
dst_cache.c
failover.c
fib_notifier.c
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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-07-13 18:04:05 -07:00
flow_dissector.c bpf, netns: Keep attached programs in bpf_prog_array 2020-06-30 10:45:08 -07:00
flow_offload.c net: sched: Pass qdisc reference in struct flow_block_offload 2020-07-13 17:22:21 -07:00
gen_estimator.c
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
neighbour.c net: neighbor: add fdb extended attribute 2020-06-24 14:36:33 -07:00
net-procfs.c
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
net_namespace.c nsproxy: add struct nsset 2020-05-09 13:57:12 +02:00
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
rtnetlink.c net: change addr_list_lock back to static key 2020-06-09 12:59:45 -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 crypto: lib/sha1 - remove unnecessary includes of linux/cryptohash.h 2020-05-08 15:32:17 +10:00
skbuff.c net: unexport skb_gro_receive() 2020-05-19 19:55:36 -07:00
skmsg.c bpf, sockmap: RCU dereferenced psock may be used outside RCU block 2020-06-28 08:33:28 -07:00
sock.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-11 00:46:00 -07:00
sock_diag.c
sock_map.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-11 00:46:00 -07:00
sock_reuseport.c net: Generate reuseport group ID on group creation 2020-02-21 22:29:45 +01:00
stream.c
sysctl_net_core.c bpf: Check correct cred for CAP_SYSLOG in bpf_dump_raw_ok() 2020-07-08 16:01:21 -07:00
timestamping.c
tso.c net: tso: add UDP segmentation support 2020-06-18 20:46:23 -07:00
utils.c
xdp.c xdp: Handle frame_sz in xdp_convert_zc_to_xdp_frame() 2020-06-17 09:58:15 -07:00