Hi,

On 14/07/2026 9:07 AM, Gavin Hu wrote:
From: Wei Yan <[email protected]>

Priority discovery installs temporary drop flows to probe supported flow
priorities. These flows match a wildcard Ethernet pattern, so they can
also match real traffic while discovery is running. On shared devices this
may temporarily drop kernel traffic and cause TCP connection timeouts.

Constrain the probe flows to match both source and destination MAC
addresses as ff:ff:ff:ff:ff:ff. This keeps the rule valid for discovery
while avoiding matches on normal Ethernet traffic.

Fixes: 3eca5f8a610e ("net/mlx5: move flow priority discovery to Verbs file")
Fixes: c5042f93a425 ("net/mlx5: discover max flow priority using DevX")
Cc: [email protected]

Signed-off-by: Wei Yan <[email protected]>
Signed-off-by: Gavin Hu <[email protected]>
---
+v2:
+* Fixed the compiling issue by some compilers in mlx5_flow_verbs.c.


Patch applied to next-net-mlx,

Kindest regards
Raslan Darawsheh

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