[PATCH mptcp-next v6 00/11] BPF packet scheduler

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

v6:
 - fix the warning reported by kernel test robot:

>> net/mptcp/bpf.c:165:6: warning: no previous prototype for 'bpf_mptcp_subflow_set_scheduled' [-Wmissing-prototypes]
     165 | void bpf_mptcp_subflow_set_scheduled(struct mptcp_subflow_context *subflow)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 - rename bpf_mptcp_subflow_set_scheduled to mptcp_subflow_set_scheduled

v5:
 - add bpf_mptcp_subflow_set_scheduled helper.
 - drop padding bits before backup, use BPF_CORE_READ_BITFIELD_PROBED()
   instead.
 - The new patch "mptcp: add bpf set scheduled helper" should be inserted
   between the commits "mptcp: add bpf_mptcp_sched_ops" and
   "selftests/bpf: add bpf_first scheduler"

v4:
 - merge "mptcp: move is_scheduled into mptcp_subflow_context"
 - rename bpf_backup tp bpf_bkup
 - full patches of this series: https://github.com/geliangtang/mptcp_net-next

v3:
 - use new BPF scheduler API:
 - add backup scheduler
 - add round-robin scheduler
 - check bytes_sent of 'ss' output.

v2:
- Use new BPF scheduler API:
 unsigned long (*get_subflow)(const struct mptcp_sock *msk, bool reinject,
                              struct mptcp_sched_data *data);

Geliang Tang (11):
  Squash to "mptcp: add struct mptcp_sched_ops"
  Squash to "mptcp: add sched in mptcp_sock"
  Squash to "mptcp: add get_subflow wrappers"
  Squash to "mptcp: add bpf_mptcp_sched_ops"
  mptcp: add subflow_set_scheduled helper
  Squash to "selftests/bpf: add bpf_first scheduler"
  Squash to "selftests/bpf: add bpf_first test"
  selftests/bpf: add bpf_bkup scheduler
  selftests/bpf: add bpf_bkup test
  selftests/bpf: add bpf_rr scheduler
  selftests/bpf: add bpf_rr test

 include/net/mptcp.h                           |  7 +-
 net/mptcp/bpf.c                               | 34 ++++---
 net/mptcp/protocol.h                          |  3 +
 net/mptcp/sched.c                             | 60 ++++++++++---
 tools/testing/selftests/bpf/bpf_tcp_helpers.h | 17 +++-
 .../testing/selftests/bpf/prog_tests/mptcp.c  | 89 ++++++++++++++++++-
 .../selftests/bpf/progs/mptcp_bpf_bkup.c      | 43 +++++++++
 .../selftests/bpf/progs/mptcp_bpf_first.c     |  5 +-
 .../selftests/bpf/progs/mptcp_bpf_rr.c        | 46 ++++++++++
 9 files changed, 272 insertions(+), 32 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/progs/mptcp_bpf_bkup.c
 create mode 100644 tools/testing/selftests/bpf/progs/mptcp_bpf_rr.c

-- 
2.34.1