From: Yunsheng Lin <linyunsheng@huawei.com>
To: <davem@davemloft.net>, <kuba@kernel.org>
Cc: <olteanv@gmail.com>, <ast@kernel.org>, <daniel@iogearbox.net>,
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<bjorn@kernel.org>, <alobakin@pm.me>
Subject: [PATCH net v6 0/3] fix packet stuck problem for lockless qdisc
Date: Mon, 10 May 2021 09:42:33 +0800 [thread overview]
Message-ID: <1620610956-56306-1-git-send-email-linyunsheng@huawei.com> (raw)
This patchset fixes the packet stuck problem mentioned in [1].
Patch 1: Add STATE_MISSED flag to fix packet stuck problem.
Patch 2: Fix a tx_action rescheduling problem after STATE_MISSED
flag is added in patch 1.
Patch 3: Fix the significantly higher CPU consumption problem when
multiple threads are competing on a saturated outgoing
device.
V6: Some performance optimization in patch 1 suggested by Jakub
and drop NET_XMIT_DROP checking in patch 3.
V5: add patch 3 to fix the problem reported by Michal Kubecek.
V4: Change STATE_NEED_RESCHEDULE to STATE_MISSED and add patch 2.
[1]. https://lkml.org/lkml/2019/10/9/42
Yunsheng Lin (3):
net: sched: fix packet stuck problem for lockless qdisc
net: sched: fix endless tx action reschedule during deactivation
net: sched: fix tx action reschedule issue with stopped queue
include/net/pkt_sched.h | 7 +------
include/net/sch_generic.h | 33 ++++++++++++++++++++++++++++++++-
net/core/dev.c | 29 ++++++++++++++++++++++++-----
net/sched/sch_generic.c | 31 +++++++++++++++++++++++++++++--
4 files changed, 86 insertions(+), 14 deletions(-)
--
2.7.4
next reply other threads:[~2021-05-10 1:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-10 1:42 Yunsheng Lin [this message]
2021-05-10 1:42 ` [PATCH net v6 1/3] net: sched: fix packet stuck problem for lockless qdisc Yunsheng Lin
2021-05-10 1:42 ` [PATCH net v6 2/3] net: sched: fix endless tx action reschedule during deactivation Yunsheng Lin
2021-05-10 1:42 ` [PATCH net v6 3/3] net: sched: fix tx action reschedule issue with stopped queue Yunsheng Lin
2021-05-11 4:22 ` Jakub Kicinski
2021-05-11 9:04 ` Yunsheng Lin
2021-05-11 12:13 ` Yunsheng Lin
2021-05-11 23:30 ` Jakub Kicinski
2021-05-12 3:34 ` [Linuxarm] " Yunsheng Lin
2021-05-12 19:47 ` Jakub Kicinski
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