Hi,
On 14/11/2025 10:17 PM, Dariusz Sosnowski wrote:
Offending patch introduced support for additional flow tag indexes
with HW Steering flow engine. New tag indexes will be mapped
to HW registers REG_C_8 to REG_C_11, depending on HW capabilities.
That patch only handled tables created on group > 0 (non-root table),
where mlx5 PMD directly configures the HW.
Tables and flow rules on group 0 (root table) are handled through
kernel driver, and new registers were not addressed for that case.
Because of that, usage of unsupported tag index in group 0
triggered an assertion in flow_dv_match_meta_reg().
This patch adds necessary definitions for REG_C_8 to REG_C_11 to make
these registers usable for flow tag indexes in root table.
Validation of flow tag to HW register translation is also amended
to report invalid cases to the user, instead of relying on assertions.
Fixes: 7e3a14423c1a ("net/mlx5/hws: support 4 additional C registers")
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Dariusz Sosnowski <[email protected]>
Patch applied to next-net-mlx,
Kindest regards
Raslan Darawsheh
