mlxsw: spectrum_dcb: Allow setting default port priority

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When APP TLV selector 1 (EtherType) is used with PID of 0, the
corresponding entry specifies "default application priority [...] when
application priority is not otherwise specified."

mlxsw currently supports this type of APP entry, but uses it only as a
fallback for unspecified DSCP rules. However non-IP traffic is prioritized
according to port-default priority, not according to the DSCP-to-prio
tables, and thus it's currently not possible to prioritize such traffic
correctly.

Extend the use of the abovementioned APP entry to also set default port
priority.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Petr Machata 2019-12-29 13:48:28 +02:00 • committed by David S. Miller

parent d8446884f8

commit 379a00dd21

1 changed files with 17 additions and 0 deletions

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drivers/net/ethernet/mellanox/mlxsw/spectrum_dcb.c

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