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From: Lorenzo Bianconi <lorenzo@kernel.org>
To: bpf@vger.kernel.org, netdev@vger.kernel.org
Cc: davem@davemloft.net, ast@kernel.org, brouer@redhat.com,
	toke@redhat.com, daniel@iogearbox.net,
	lorenzo.bianconi@redhat.com, dsahern@kernel.org
Subject: [PATCH bpf-next 0/6] introduce support for XDP programs in CPUMAP
Date: Sun, 31 May 2020 23:46:45 +0200	[thread overview]
Message-ID: <cover.1590960613.git.lorenzo@kernel.org> (raw)

Similar to what David Ahern proposed in [1] for DEVMAPs, introduce the
capability to attach and run a XDP 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.
I respin patch 1/6 from a previous series sent by David [2]
This series is based on the following series:
- https://patchwork.ozlabs.org/project/netdev/cover/cover.1590698295.git.lorenzo@kernel.org/
- https://patchwork.ozlabs.org/project/netdev/cover/20200529220716.75383-1-dsahern@kernel.org/

[1] https://patchwork.ozlabs.org/project/netdev/cover/20200529220716.75383-1-dsahern@kernel.org/
[2] https://patchwork.ozlabs.org/project/netdev/patch/20200513014607.40418-2-dsahern@kernel.org/

David Ahern (1):
  net: Refactor xdp_convert_buff_to_frame

Lorenzo Bianconi (5):
  samples/bpf: xdp_redirect_cpu_user: do not update bpf maps in option
    loop
  cpumap: formalize map value as a named struct
  bpf: cpumap: add the possibility to attach a eBPF program to cpumap
  bpf: cpumap: implement XDP_REDIRECT for eBPF programs attached to map
    entries
  samples/bpf: xdp_redirect_cpu: load a eBPF program on cpumap

 include/linux/bpf.h                 |   6 ++
 include/net/xdp.h                   |  35 ++++---
 include/trace/events/xdp.h          |  18 +++-
 include/uapi/linux/bpf.h            |   1 +
 kernel/bpf/cpumap.c                 | 147 +++++++++++++++++++++++-----
 net/core/dev.c                      |   8 ++
 net/core/filter.c                   |   7 ++
 samples/bpf/xdp_redirect_cpu_kern.c |  34 +++++--
 samples/bpf/xdp_redirect_cpu_user.c | 140 ++++++++++++++++++++++----
 tools/include/uapi/linux/bpf.h      |   1 +
 10 files changed, 329 insertions(+), 68 deletions(-)

-- 
2.26.2


             reply	other threads:[~2020-05-31 21:47 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-31 21:46 Lorenzo Bianconi [this message]
2020-05-31 21:46 ` [PATCH bpf-next 1/6] net: Refactor xdp_convert_buff_to_frame Lorenzo Bianconi
2020-05-31 21:46 ` [PATCH bpf-next 2/6] samples/bpf: xdp_redirect_cpu_user: do not update bpf maps in option loop Lorenzo Bianconi
2020-05-31 21:46 ` [PATCH bpf-next 3/6] cpumap: formalize map value as a named struct Lorenzo Bianconi
2020-05-31 21:46 ` [PATCH bpf-next 4/6] bpf: cpumap: add the possibility to attach an eBPF program to cpumap Lorenzo Bianconi
2020-06-01 22:36   ` Alexei Starovoitov
2020-06-02  9:27     ` Lorenzo Bianconi
2020-06-02  7:53   ` Jesper Dangaard Brouer
2020-06-02  9:29     ` Lorenzo Bianconi
2020-05-31 21:46 ` [PATCH bpf-next 5/6] bpf: cpumap: implement XDP_REDIRECT for eBPF programs attached to map entries Lorenzo Bianconi
2020-05-31 21:46 ` [PATCH bpf-next 6/6] samples/bpf: xdp_redirect_cpu: load an eBPF program on cpumap Lorenzo Bianconi

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