netdev - [PATCH bpf-next v3 0/3] A couple of small refactorings of BPF program call sites

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Date:   Tue,  8 Nov 2022 15:05:58 +0100
From:   Toke Høiland-Jørgensen <toke@...hat.com>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>
Cc:     Toke Høiland-Jørgensen <toke@...hat.com>,
        netdev@...r.kernel.org, bpf@...r.kernel.org
Subject: [PATCH bpf-next v3 0/3] A couple of small refactorings of BPF program call sites

Stanislav suggested[0] that these small refactorings could be split out from the
XDP queueing RFC series and merged separately. The first change is a small
repacking of struct softnet_data, the others change the BPF call sites to
support full 64-bit values as arguments to bpf_redirect_map() and as the return
value of a BPF program, relying on the fact that BPF registers are always 64-bit
wide to maintain backwards compatibility.

Please see the individual patches for details.

v3:
- In patch 3, don't change types of return values that are copied to
  userspace (which should fix selftest errors on big-endian archs like s390)
- Rebase on bpf-next
- Collect Song's ACKs

v2:
- Rebase on bpf-next (CI failure seems to be unrelated to this series)
- Collect Stanislav's Reviewed-by

[0] https://lore.kernel.org/r/CAKH8qBtdnku7StcQ-SamadvAF==DRuLLZO94yOR1WJ9Bg=uX1w@mail.gmail.com

Kumar Kartikeya Dwivedi (1):
  bpf: Use 64-bit return value for bpf_prog_run

Toke Høiland-Jørgensen (2):
  dev: Move received_rps counter next to RPS members in softnet data
  bpf: Expand map key argument of bpf_redirect_map to u64

 include/linux/bpf-cgroup.h | 12 +++++------
 include/linux/bpf.h        | 24 +++++++++++-----------
 include/linux/filter.h     | 42 +++++++++++++++++++-------------------
 include/linux/netdevice.h  |  2 +-
 include/uapi/linux/bpf.h   |  2 +-
 kernel/bpf/cgroup.c        | 12 +++++------
 kernel/bpf/core.c          | 14 ++++++-------
 kernel/bpf/cpumap.c        |  4 ++--
 kernel/bpf/devmap.c        |  4 ++--
 kernel/bpf/offload.c       |  4 ++--
 kernel/bpf/verifier.c      |  2 +-
 net/core/filter.c          |  4 ++--
 net/packet/af_packet.c     |  7 +++++--
 net/xdp/xskmap.c           |  4 ++--
 14 files changed, 70 insertions(+), 67 deletions(-)

-- 
2.38.1