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
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arraymap.c	bpf: Remove redundant synchronize_rcu.	2020-07-01 08:07:13 -07:00
bpf_iter.c	bpf: Enable bpf_iter targets registering ctx argument types	2020-05-13 12:30:50 -07:00
bpf_lru_list.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
bpf_lru_list.h	bpf: Fix a typo "inacitve" -> "inactive"	2020-04-06 21:54:10 +02:00
bpf_lsm.c	bpf: Use tracing helpers for lsm programs	2020-06-01 15:08:04 -07:00
bpf_struct_ops_types.h	bpf: tcp: Support tcp_congestion_ops in bpf	2020-01-09 08:46:18 -08:00
bpf_struct_ops.c	bpf: Set map_btf_{name, id} for all map types	2020-06-22 22:22:58 +02:00
btf.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-07-13 18:04:05 -07:00
cgroup.c	bpf: Don't return EINVAL from {get,set}sockopt when optlen > PAGE_SIZE	2020-06-17 10:54:05 -07:00
core.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-06-03 16:27:18 -07:00
cpumap.c	bpf: cpumap: Add the possibility to attach an eBPF program to cpumap	2020-07-16 17:00:32 +02:00
devmap.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-07-04 17:48:34 -07:00
disasm.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
disasm.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
dispatcher.c	bpf: Remove bpf_image tree	2020-03-13 12:49:52 -07:00
hashtab.c	bpf: Remove redundant synchronize_rcu.	2020-07-01 08:07:13 -07:00
helpers.c	bpf: Implement BPF ring buffer and verifier support for it	2020-06-01 14:38:22 -07:00
inode.c	bpf: Create file bpf iterator	2020-05-09 17:05:26 -07:00
local_storage.c	bpf: Set map_btf_{name, id} for all map types	2020-06-22 22:22:58 +02:00
lpm_trie.c	bpf: Remove redundant synchronize_rcu.	2020-07-01 08:07:13 -07:00
Makefile	flow_dissector: Move out netns_bpf prog callbacks	2020-06-01 15:21:02 -07:00
map_in_map.c	bpf: Implement CAP_BPF	2020-05-15 17:29:41 +02:00
map_in_map.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
map_iter.c	bpf: Enable bpf_iter targets registering ctx argument types	2020-05-13 12:30:50 -07:00
net_namespace.c	bpf, netns: Fix use-after-free in pernet pre_exit callback	2020-06-30 10:53:42 -07:00
offload.c	bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill	2020-02-17 16:53:49 +01:00
percpu_freelist.c	bpf: Dont iterate over possible CPUs with interrupts disabled	2020-02-24 16:18:20 -08:00
percpu_freelist.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
queue_stack_maps.c	bpf: Remove redundant synchronize_rcu.	2020-07-01 08:07:13 -07:00
reuseport_array.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-07-11 00:46:00 -07:00
ringbuf.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-07-11 00:46:00 -07:00
stackmap.c	bpf: Resolve BTF IDs in vmlinux image	2020-07-13 10:42:02 -07:00
syscall.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-07-13 18:04:05 -07:00
sysfs_btf.c	bpf: Support llvm-objcopy for vmlinux BTF	2020-03-19 12:32:38 +01:00
task_iter.c	bpf: Fix bpf_iter's task iterator logic	2020-05-14 18:37:32 -07:00
tnum.c	bpf: Verifier, do explicit ALU32 bounds tracking	2020-03-30 14:59:53 -07:00
trampoline.c	bpf: lsm: Implement attach, detach and execution	2020-03-30 01:34:00 +02:00
verifier.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-07-11 00:46:00 -07:00