[PATCH mptcp-next v8 00/15] refactor push pending

[Geliang Tang <geliang.tang@suse.com>]

v8:
- merge "register default scheduler" into this series.
- Move "multi-subflow scheduling" out of this series.
- This series should be merged between the commit "mptcp: add get_subflow
wrappers" and "bpf: Add bpf_mptcp_sched_ops", except the squash-to patches.

v7:
- update delegate sending in patch 10
- rebase to export/20221011T063543.

v6:
- drop all msk->last_snd, add last_snd variable instead in patch 13
- fix lock_sock issue in patch 3
- merge squash-to patches

v5:
- address Mat's comments in v4.

v4:
- update __mptcp_subflow_push_pending as Mat suggested.
- add more patches from "BPF redundant scheduler" series.

v3:
- add a cleanup patch.
- remove msk->last_snd in mptcp_subflow_get_send().
- add the loop that calls the scheduler again in __mptcp_push_pending().

v2:
- add snd_burst check in dfrags loop as Mat suggested.

Refactor __mptcp_push_pending() and __mptcp_subflow_push_pending() to
remove duplicate code and support redundant scheduler more easily in
__mptcp_subflow_push_pending().

Geliang Tang (15):
  Revert "mptcp: add get_subflow wrappers"
  Squash to "mptcp: add struct mptcp_sched_ops"
  mptcp: use msk instead of mptcp_sk(sk)
  mptcp: change 'first' as a parameter
  mptcp: drop snd_burst in mptcp_sock
  mptcp: refactor push_pending logic
  mptcp: drop last_snd in mptcp_sock
  mptcp: add sched_data_set_contexts helper
  mptcp: register default scheduler
  mptcp: add scheduler wrappers
  Squash to "bpf: Add bpf_mptcp_sched_ops"
  Squash to "bpf: Add bpf_mptcp_sched_kfunc_set"
  Squash to "selftests/bpf: Add bpf_first scheduler"
  Squash to "selftests/bpf: Add bpf_bkup scheduler"
  Squash to "selftests/bpf: Add bpf_rr scheduler"

 include/net/mptcp.h                           |   7 +-
 net/mptcp/bpf.c                               |   1 +
 net/mptcp/pm.c                                |   9 +-
 net/mptcp/pm_netlink.c                        |   3 -
 net/mptcp/protocol.c                          | 208 ++++++++----------
 net/mptcp/protocol.h                          |  15 +-
 net/mptcp/sched.c                             | 117 ++++++----
 tools/testing/selftests/bpf/bpf_tcp_helpers.h |  10 +-
 .../selftests/bpf/progs/mptcp_bpf_bkup.c      |  10 +-
 .../selftests/bpf/progs/mptcp_bpf_first.c     |  10 +-
 .../selftests/bpf/progs/mptcp_bpf_rr.c        |  16 +-
 11 files changed, 212 insertions(+), 194 deletions(-)

-- 
2.35.3