diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2020-09-14 10:01:17 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-14 13:28:02 -0700 |
| commit | d5f49190def61c47b2faff170ba8fbc48bac4371 (patch) | |
| tree | 32cb6e5177d7f54d34e9611758c2d7117f30e5bb /net/mptcp/protocol.h | |
| parent | 4596a2c1b7f55b8dac9ef4d8724cbef6e11eb74c (diff) | |
mptcp: allow picking different xmit subflows
Update the scheduler to less trivial heuristic: cache
the last used subflow, and try to send on it a reasonably
long burst of data.
When the burst or the subflow send space is exhausted, pick
the subflow with the lower ratio between write space and
send buffer - that is, the subflow with the greater relative
amount of free space.
v1 -> v2:
- fix 32 bit build breakage due to 64bits div
- fix checkpath issues (uint64_t -> u64)
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index cfa5e1b9521b..493bd2c13bc6 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -196,6 +196,8 @@ struct mptcp_sock { u64 write_seq; u64 ack_seq; u64 rcv_data_fin_seq; + struct sock *last_snd; + int snd_burst; atomic64_t snd_una; unsigned long timer_ival; u32 token; @@ -473,12 +475,12 @@ static inline bool before64(__u64 seq1, __u64 seq2) void mptcp_diag_subflow_init(struct tcp_ulp_ops *ops); -static inline bool __mptcp_check_fallback(struct mptcp_sock *msk) +static inline bool __mptcp_check_fallback(const struct mptcp_sock *msk) { return test_bit(MPTCP_FALLBACK_DONE, &msk->flags); } -static inline bool mptcp_check_fallback(struct sock *sk) +static inline bool mptcp_check_fallback(const struct sock *sk) { struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(sk); struct mptcp_sock *msk = mptcp_sk(subflow->conn); |