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b7715acba4
Test that when the hash policy is set to custom, traffic is distributed only according to the inner fields set in the fib_multipath_hash_fields sysctl. Each time set a different field and make sure traffic is only distributed when the field is changed in the packet stream. The test only verifies the behavior of IPv4/IPv6 overlays on top of an IPv6 underlay network. The previous patch verified the same with an IPv4 underlay network. Example output: # ./ip6gre_custom_multipath_hash.sh TEST: ping [ OK ] TEST: ping6 [ OK ] INFO: Running IPv4 overlay custom multipath hash tests TEST: Multipath hash field: Inner source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6602 / 6002 TEST: Multipath hash field: Inner source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 1 / 12601 TEST: Multipath hash field: Inner destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6802 / 5801 TEST: Multipath hash field: Inner destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12602 / 3 TEST: Multipath hash field: Inner source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16431 / 16344 TEST: Multipath hash field: Inner source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 32773 TEST: Multipath hash field: Inner destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16431 / 16344 TEST: Multipath hash field: Inner destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 2 / 32772 INFO: Running IPv6 overlay custom multipath hash tests TEST: Multipath hash field: Inner source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6704 / 5902 TEST: Multipath hash field: Inner source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 1 / 12600 TEST: Multipath hash field: Inner destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 5751 / 6852 TEST: Multipath hash field: Inner destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12602 / 0 TEST: Multipath hash field: Inner flowlabel (balanced) [ OK ] INFO: Packets sent on path1 / path2: 8272 / 8181 TEST: Multipath hash field: Inner flowlabel (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 3 / 12602 TEST: Multipath hash field: Inner source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16424 / 16351 TEST: Multipath hash field: Inner source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 3 / 32774 TEST: Multipath hash field: Inner destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16425 / 16350 TEST: Multipath hash field: Inner destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 2 / 32773 Signed-off-by: Ido Schimmel <idosch@nvidia.com> Acked-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.