From: Geliang Tang <geliang.tang@suse.com>
To: mptcp@lists.linux.dev
Cc: Geliang Tang <geliang.tang@suse.com>
Subject: [PATCH mptcp-next v16 0/8] BPF packet scheduler
Date: Wed, 27 Apr 2022 09:56:47 +0800 [thread overview]
Message-ID: <cover.1651024344.git.geliang.tang@suse.com> (raw)
v16:
- add CONFIG_BPF_JIT check around the scheduler code inside bpf.c
- depends on export/20220426T102605 +
Squash to "bpf: add bpf_skc_to_mptcp_sock_proto" +
Squash to "selftests: bpf: test bpf_skc_to_mptcp_sock"
Squash to "selftests: bpf: add MPTCP test base"
v15:
- set mptcp_sched_id and mptcp_sched_type in bpf_mptcp_sched_init().
- add CONFIG_BPF_JIT in patch 6.
- drop '#include <sys/param.h>' in patch 8.
- depends on export/20220426T102605 +
Squash to "bpf: add bpf_skc_to_mptcp_sock_proto" +
Squash to "selftests: bpf: test bpf_skc_to_mptcp_sock"
v14:
- add struct mptcp_sched_data.
base-commit: export/20220422T060337
v13:
- rename retrans to reinject
- drop "add last_snd write access" patch
- change %lu to %zu to fix the build break on i386.
base-commit: export/20220420T152103
v12:
- add call_me_again flag.
base-commit: export/20220419T055400
v11:
- add retrans argment for get_subflow()
base-commit: export/20220408T100826
v10:
- patch 5: keep msk->last_snd setting in get_subflow().
- patch 6: add bpf_mptcp_sched_btf_struct_access().
- patch 8: use MIN() in sys/param.h, instead of defining a new one.
- update commit logs.
base-commit: export/20220406T054706
v9:
- patch 2: add the missing mptcp_sched_init() invoking in
mptcp_proto_init().
- patch 5: set last_snd after invoking get_subflow().
- patch 7: merge the squash-to patch.
v8:
- use global sched_list instead of pernet sched_list.
- drop synchronize_rcu() in mptcp_unregister_scheduler().
- update mptcp_init_sched and mptcp_release_sched as Mat and Florian
suggested.
- fix the build break in patch 8.
- depends on: "add skc_to_mptcp_sock" v14.
- export/20220325T055307
v7:
- add bpf_try_module_get in mptcp_init_sched.
- add bpf_module_put in mptcp_release_sched.
- rename bpf_first to mptcp_bpf_first.
- update commit logs.
v6:
- still use pernet sched_list, use current->nsproxy->net_ns in BPF
context instead of using init_net.
- patch 1:
- use rcu_read_lock instead of spin_lock in mptcp_sched_find as Florian suggested.
- drop synchronize_rcu in sched_exit_net as Florian suggested.
- keep synchronize_rcu in mptcp_unregister_scheduler, otherwise, got
a workqueue lockup in my test.
- update Makefile as Mat suggested.
- patch 2:
- add mptcp_sched_data_init to register default sched, instead of
registering it in init_net.
- patch 5:
- move mptcp_sched_get_subflow to protocol.h as Mat suggested.
- patch 6:
- use current->nsproxy->net_ns instead of init_net.
- patch 8:
- add send_data to send more data, instead of send_byte.
v5:
- patch 1: define per-namespace sched_list (but only used init_net
namespace. It is difficult to get 'net' in bpf_mptcp_sched_reg and
bpf_mptcp_sched_unreg. I need some suggestions here.)
- patch 2: skip mptcp_sched_default in mptcp_unregister_scheduler.
- patch 8: add tests into mptcp.c, instead of bpf_tcp_ca.c.
v4:
- set msk->sched to &mptcp_sched_default when the sched argument is NULL
in mptcp_init_sched().
v3:
- add mptcp_release_sched helper in patch 4.
- rename mptcp_set_sched to mptcp_init_sched in patch 4.
- add mptcp_sched_first_release in patch 7.
- do some cleanups.
v2:
- split into more small patches.
- change all parameters of mptcp_sched_ops from sk to msk:
void (*init)(struct mptcp_sock *msk);
void (*release)(struct mptcp_sock *msk);
struct sock * (*get_subflow)(struct mptcp_sock *msk);
- add tests in bpf_tcp_ca.c, instead of adding a new one.
v1:
- Addressed to the commends in the RFC version.
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/75
Geliang Tang (8):
mptcp: add struct mptcp_sched_ops
mptcp: register default scheduler
mptcp: add a new sysctl scheduler
mptcp: add sched in mptcp_sock
mptcp: add get_subflow wrapper
mptcp: add bpf_mptcp_sched_ops
selftests: bpf: add bpf_first scheduler
selftests: bpf: add bpf_first test
Documentation/networking/mptcp-sysctl.rst | 8 +
include/net/mptcp.h | 19 +++
kernel/bpf/bpf_struct_ops_types.h | 4 +
net/mptcp/Makefile | 2 +-
net/mptcp/bpf.c | 151 ++++++++++++++++++
net/mptcp/ctrl.c | 14 ++
net/mptcp/protocol.c | 25 ++-
net/mptcp/protocol.h | 27 ++++
net/mptcp/sched.c | 104 ++++++++++++
.../testing/selftests/bpf/bpf_mptcp_helpers.h | 19 +++
.../testing/selftests/bpf/prog_tests/mptcp.c | 112 +++++++++++++
.../selftests/bpf/progs/mptcp_bpf_first.c | 32 ++++
12 files changed, 511 insertions(+), 6 deletions(-)
create mode 100644 net/mptcp/sched.c
create mode 100644 tools/testing/selftests/bpf/progs/mptcp_bpf_first.c
--
2.34.1
next reply other threads:[~2022-04-27 1:56 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-27 1:56 Geliang Tang [this message]
2022-04-27 1:56 ` [PATCH mptcp-next v16 1/8] mptcp: add struct mptcp_sched_ops Geliang Tang
2022-04-27 1:56 ` [PATCH mptcp-next v16 2/8] mptcp: register default scheduler Geliang Tang
2022-04-27 1:56 ` [PATCH mptcp-next v16 3/8] mptcp: add a new sysctl scheduler Geliang Tang
2022-04-27 1:56 ` [PATCH mptcp-next v16 4/8] mptcp: add sched in mptcp_sock Geliang Tang
2022-04-27 1:56 ` [PATCH mptcp-next v16 5/8] mptcp: add get_subflow wrapper Geliang Tang
2022-04-27 8:27 ` Paolo Abeni
2022-04-27 8:56 ` Paolo Abeni
2022-04-27 14:34 ` Geliang Tang
2022-04-27 16:53 ` Matthieu Baerts
2022-04-27 1:56 ` [PATCH mptcp-next v16 6/8] mptcp: add bpf_mptcp_sched_ops Geliang Tang
2022-04-27 13:29 ` kernel test robot
2022-04-27 1:56 ` [PATCH mptcp-next v16 7/8] selftests: bpf: add bpf_first scheduler Geliang Tang
2022-04-27 1:56 ` [PATCH mptcp-next v16 8/8] selftests: bpf: add bpf_first test Geliang Tang
2022-04-27 3:30 ` selftests: bpf: add bpf_first test: Tests Results MPTCP CI
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