netdev - [PATCH bpf 0/4] Fix some issues for selftest test_xdp_redirect

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Message-Id: <20211027033553.962413-1-liuhangbin@gmail.com>
Date:   Wed, 27 Oct 2021 11:35:49 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     netdev@...r.kernel.org
Cc:     bpf@...r.kernel.org, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        linux-kselftest@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>,
        Jiri Benc <jbenc@...hat.com>,
        Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCH bpf 0/4] Fix some issues for selftest test_xdp_redirect_multi.sh

Jiri reported some issues in test_xdp_redirect_multi.sh. Like
the test logs not cleaned after testing. The tcpdump not terminated cleanly.
arp number count may have false positive. And the most important, after
creating/deleting a lot interfaces, the interface index may exceed the
DEVMAP max entry and cause program xdp_redirect_multi exec failed.

This patch set fix all these issues.

Hangbin Liu (4):
  selftests/bpf/xdp_redirect_multi: put the logs to tmp folder
  selftests/bpf/xdp_redirect_multi: use arping to accurate the arp
    number
  selftests/bpf/xdp_redirect_multi: give tcpdump a chance to terminate
    cleanly
  selftests/bpf/xdp_redirect_multi: limit the tests in netns

 .../selftests/bpf/test_xdp_redirect_multi.sh  | 62 +++++++++++--------
 .../selftests/bpf/xdp_redirect_multi.c        |  4 +-
 2 files changed, 37 insertions(+), 29 deletions(-)

-- 
2.31.1