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| author | Maciej Fijalkowski <maciej.fijalkowski@intel.com> | 2024-09-04 19:28:08 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2024-09-05 16:56:49 +0300 |
| commit | 6b083650a37318112fb60c65fbb6070584f53d93 (patch) | |
| tree | 554c2f777963910ab84bdb900ff0c291280e17bf /scripts/gdb/linux/utils.py | |
| parent | 5d1622831064abf2633a1bc9a6446e83a669f58d (diff) | |
| download | linux-6b083650a37318112fb60c65fbb6070584f53d93.tar.xz | |
xsk: Bump xsk_queue::queue_empty_descs in xp_can_alloc()
We have STAT_FILL_EMPTY test case in xskxceiver that tries to process
traffic with fill queue being empty which currently fails for zero copy
ice driver after it started to use xsk_buff_can_alloc() API. That is
because xsk_queue::queue_empty_descs is currently only increased from
alloc APIs and right now if driver sees that xsk_buff_pool will be
unable to provide the requested count of buffers, it bails out early,
skipping calls to xsk_buff_alloc{_batch}().
Mentioned statistic should be handled in xsk_buff_can_alloc() from the
very beginning, so let's add this logic now. Do it by open coding
xskq_cons_has_entries() and bumping queue_empty_descs in the middle when
fill queue currently has no entries.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/bpf/20240904162808.249160-1-maciej.fijalkowski@intel.com
Diffstat (limited to 'scripts/gdb/linux/utils.py')
0 files changed, 0 insertions, 0 deletions