selftests/xsk: add test for too many frags

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Add a test that will exercise maximum number of supported fragments.
This number depends on mode of the test - for SKB and DRV it will be 18
whereas for ZC this is defined by a value from NETDEV_A_DEV_XDP_ZC_MAX_SEGS
netlink attribute.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> # made use of new netlink attribute
Link: https://lore.kernel.org/r/20230719132421.584801-24-maciej.fijalkowski@intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Magnus Karlsson 2023-07-19 15:24:20 +02:00 • committed by Alexei Starovoitov

parent f80ddbec47

commit 807bf4da20

2 changed files with 55 additions and 2 deletions

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54

tools/testing/selftests/bpf/xskxceiver.c

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3

tools/testing/selftests/bpf/xskxceiver.h

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