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| author | Magnus Karlsson <magnus.karlsson@intel.com> | 2021-09-22 09:56:04 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-09-28 00:18:35 +0200 |
| commit | db804cfc21e969a5a4ada4b8142f711def5ed339 (patch) | |
| tree | 42e7c991a77c6249bca3f0475a39d064c0722c63 /tools/perf/scripts/python/bin | |
| parent | ice: Use xdp_buf instead of rx_buf for xsk zero-copy (diff) | |
| download | linux-db804cfc21e969a5a4ada4b8142f711def5ed339.tar.gz linux-db804cfc21e969a5a4ada4b8142f711def5ed339.zip | |
ice: Use the xsk batched rx allocation interface
Use the new xsk batched rx allocation interface for the zero-copy data
path. As the array of struct xdp_buff pointers kept by the driver is
really a ring that wraps, the allocation routine is modified to detect
a wrap and in that case call the allocation function twice. The
allocation function cannot deal with wrapped rings, only arrays. As we
now know exactly how many buffers we get and that there is no
wrapping, the allocation function can be simplified even more as all
if-statements in the allocation loop can be removed, improving
performance.
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210922075613.12186-5-magnus.karlsson@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions