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| author | Björn Töpel <[email protected]> | 2018-09-07 10:18:48 +0200 |
|---|---|---|
| committer | Jeff Kirsher <[email protected]> | 2018-09-25 13:16:19 -0700 |
| commit | 3ab52af58fa481324bb7c839a2187c54c4af912b (patch) | |
| tree | 23c7f5927c27ba3bbaabc241bf9b2ddd4d546a17 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | 411dc16ff1775517ec91cdb64be7ee0daca44e22 (diff) | |
i40e: disallow changing the number of descriptors when AF_XDP is on
When an AF_XDP UMEM is attached to any of the Rx rings, we disallow a
user to change the number of descriptors via e.g. "ethtool -G IFNAME".
Otherwise, the size of the stash/reuse queue can grow unbounded, which
would result in OOM or leaking userspace buffers.
Signed-off-by: Björn Töpel <[email protected]>
Tested-by: Andrew Bowers <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions