From: Paolo Abeni <pabeni@redhat.com>
To: netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
mptcp@lists.01.org
Subject: [PATCH v2 net-next 0/5] mptcp: re-enable sndbuf autotune
Date: Wed, 20 Jan 2021 15:39:09 +0100 [thread overview]
Message-ID: <cover.1611153172.git.pabeni@redhat.com> (raw)
The sendbuffer autotuning was unintentionally disabled as a
side effect of the recent workqueue removal refactor. These
patches re-enable id, with some extra care: with autotuning
enable/large send buffer we need a more accurate packet
scheduler to be able to use efficiently the available
subflow bandwidth, especially when the subflows have
different capacities.
The first patch cleans-up subflow socket handling, making
the actual re-enable (patch 2) simpler.
Patches 3 and 4 improve the packet scheduler, to better cope
with non trivial scenarios and large send buffer.
Finally patch 5 adds and uses some infrastructure to avoid
the workqueue usage for the packet scheduler operations introduced
by the previous patches.
v1 -> v2:
- fix a UaF in patch 5, see patch changelog for the details
Paolo Abeni (5):
mptcp: always graft subflow socket to parent
mptcp: re-enable sndbuf autotune
mptcp: do not queue excessive data on subflows
mptcp: schedule work for better snd subflow selection
mptcp: implement delegated actions
net/mptcp/protocol.c | 179 ++++++++++++++++++++++++++++---------------
net/mptcp/protocol.h | 87 +++++++++++++++++++++
net/mptcp/subflow.c | 55 ++++++++++++-
3 files changed, 258 insertions(+), 63 deletions(-)
--
2.26.2
next reply other threads:[~2021-01-20 14:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-20 14:39 Paolo Abeni [this message]
2021-01-20 14:39 ` [PATCH v2 net-next 1/5] mptcp: always graft subflow socket to parent Paolo Abeni
2021-01-20 14:39 ` [PATCH v2 net-next 2/5] mptcp: re-enable sndbuf autotune Paolo Abeni
2021-01-20 14:39 ` [PATCH v2 net-next 3/5] mptcp: do not queue excessive data on subflows Paolo Abeni
2021-01-20 14:39 ` [PATCH v2 net-next 4/5] mptcp: schedule work for better snd subflow selection Paolo Abeni
2021-01-20 14:39 ` [PATCH v2 net-next 5/5] mptcp: implement delegated actions Paolo Abeni
2021-01-22 1:34 ` Jakub Kicinski
2021-01-22 8:25 ` Paolo Abeni
2021-01-22 23:23 ` Jakub Kicinski
2021-01-23 7:10 ` Paolo Abeni
2021-01-23 3:30 ` [PATCH v2 net-next 0/5] mptcp: re-enable sndbuf autotune patchwork-bot+netdevbpf
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