v19:
- patch 1, use 'continue' instead of 'goto again'.
v18:
- some cleanups
- update commit logs.
v17:
- address to Mat's comments in v16
- rebase to export/20221108T055508.
v16:
- keep last_snd and snd_burst in struct mptcp_sock.
- drop "mptcp: register default scheduler".
- drop "mptcp: add scheduler wrappers", move it into "mptcp: use
get_send wrapper" and "mptcp: use get_retrans wrapper".
- depends on 'v2, Revert "mptcp: add get_subflow wrappers" - fix
divide error in mptcp_subflow_get_send'
v15:
1: "refactor push pending" v10
2-11: "register default scheduler" v3
- move last_snd and snd_burst into struct mptcp_sched_ops
12-19: "BPF redundant scheduler" v15
- split "use get_send wrapper" into two patches
- rebase to export/20221021T061837.
v14:
- add "mptcp: refactor push_pending logic" v10 as patch 1
- drop update_first_pending in patch 4
- drop update_already_sent in patch 5
v13:
- deponds on "refactor push pending" v9.
- Simply 'goto out' after invoking mptcp_subflow_delegate in patch 1.
- All selftests (mptcp_connect.sh, mptcp_join.sh and simult_flows.sh) passed.
v12:
- fix WARN_ON_ONCE(reuse_skb) and WARN_ON_ONCE(!msk->recovery) errors
in kernel logs.
v11:
- address to Mat's comments in v10.
- rebase to export/20220908T063452
v10:
- send multiple dfrags in __mptcp_push_pending().
v9:
- drop the extra *err paramenter of mptcp_sched_get_send() as Florian
suggested.
v8:
- update __mptcp_push_pending(), send the same data on each subflow.
- update __mptcp_retrans, track the max sent data.
= add a new patch.
v7:
- drop redundant flag in v6
- drop __mptcp_subflows_push_pending in v6
- update redundant subflows support in __mptcp_push_pending
- update redundant subflows support in __mptcp_retrans
v6:
- Add redundant flag for struct mptcp_sched_ops.
- add a dedicated function __mptcp_subflows_push_pending() to deal with
redundat subflows push pending.
v5:
- address to Paolo's comment, keep the optimization to
mptcp_subflow_get_send() for the non eBPF case.
- merge mptcp_sched_get_send() and __mptcp_sched_get_send() in v4 into one.
- depends on "cleanups for bpf sched selftests".
v4:
- small cleanups in patch 1, 2.
- add TODO in patch 3.
- rebase patch 5 on 'cleanups for bpf sched selftests'.
v3:
- use new API.
- fix the link failure tests issue mentioned in ("https://patchwork.kernel.org/project/mptcp/cover/cover.1653033459.git.geliang.tang@suse.com/").
v2:
- add MPTCP_SUBFLOWS_MAX limit to avoid infinite loops when the
scheduler always sets call_again to true.
- track the largest copied amount.
- deal with __mptcp_subflow_push_pending() and the retransmit loop.
- depends on "BPF round-robin scheduler" v14.
v1:
Implements the redundant BPF MPTCP scheduler, which sends all packets
redundantly on all available subflows.
Geliang Tang (6):
mptcp: use get_send wrapper
mptcp: use get_retrans wrapper
mptcp: delay updating first_pending
mptcp: delay updating already_sent
selftests/bpf: Add bpf_red scheduler
selftests/bpf: Add bpf_red test
net/mptcp/protocol.c | 246 ++++++++++++------
net/mptcp/protocol.h | 18 +-
net/mptcp/sched.c | 67 +++++
.../testing/selftests/bpf/prog_tests/mptcp.c | 34 +++
.../selftests/bpf/progs/mptcp_bpf_red.c | 45 ++++
5 files changed, 322 insertions(+), 88 deletions(-)
create mode 100644 tools/testing/selftests/bpf/progs/mptcp_bpf_red.c
--
2.35.3