diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2022-01-07 03:20:23 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-01-07 14:27:07 +0300 |
| commit | a88c9e49693759f9eb49dcda6c45a0d32b07634c (patch) | |
| tree | 9036b363f2b5e255ab40770773312531a0637a00 /net/mptcp/protocol.h | |
| parent | 86e39e04482b0aadf3ee3ed5fcf2d63816559d36 (diff) | |
| download | linux-a88c9e49693759f9eb49dcda6c45a0d32b07634c.tar.xz | |
mptcp: do not block subflows creation on errors
If the MPTCP configuration allows for multiple subflows
creation, and the first additional subflows never reach
the fully established status - e.g. due to packets drop or
reset - the in kernel path manager do not move to the
next subflow.
This patch introduces a new PM helper to cope with MPJ
subflow creation failure and delay and hook it where appropriate.
Such helper triggers additional subflow creation, as needed
and updates the PM subflow counter, if the current one is
closing.
Additionally start all the needed additional subflows
as soon as the MPTCP socket is fully established, so we don't
have to cope with slow MPJ handshake blocking the next subflow
creation.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-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 | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 2a6f0960ba27..a8eb32e29215 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -743,7 +743,9 @@ void mptcp_pm_fully_established(struct mptcp_sock *msk, const struct sock *ssk, bool mptcp_pm_allow_new_subflow(struct mptcp_sock *msk); void mptcp_pm_connection_closed(struct mptcp_sock *msk); void mptcp_pm_subflow_established(struct mptcp_sock *msk); -void mptcp_pm_subflow_closed(struct mptcp_sock *msk, u8 id); +bool mptcp_pm_nl_check_work_pending(struct mptcp_sock *msk); +void mptcp_pm_subflow_check_next(struct mptcp_sock *msk, const struct sock *ssk, + const struct mptcp_subflow_context *subflow); void mptcp_pm_add_addr_received(struct mptcp_sock *msk, const struct mptcp_addr_info *addr); void mptcp_pm_add_addr_echoed(struct mptcp_sock *msk, |