netdev-offload-tc: Reserve lower tc prio for vlan ethertype.

The cited commit reserved lower tc priorities for IP ethertypes in order to give IP traffic higher priority than other management traffic. In case of of vlan encap traffic, IP traffic will still get lower priority. Fix it by also reserving low priority tc prio for vlan. Fixes: c230c75 ("netdev-offload-tc: Reserve lower tc prios for ip ethertypes") Signed-off-by: Maor Dickman <[email protected]> Acked-by: Roi Dayan <[email protected]> Signed-off-by: Simon Horman <[email protected]>
roseoriorden · Jul 1, 2024 · 258b6c0 · 258b6c0
1 parent 5af32de
commit 258b6c0
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diff --git a/lib/netdev-offload-tc.c b/lib/netdev-offload-tc.c
@@ -400,6 +400,8 @@ get_next_available_prio(ovs_be16 protocol)
             return TC_RESERVED_PRIORITY_IPV4;
         } else if (protocol == htons(ETH_P_IPV6)) {
             return TC_RESERVED_PRIORITY_IPV6;
+        } else if (protocol == htons(ETH_P_8021Q)) {
+            return TC_RESERVED_PRIORITY_VLAN;
         }
     }
 

diff --git a/lib/tc.h b/lib/tc.h
@@ -51,6 +51,7 @@ enum tc_flower_reserved_prio {
     TC_RESERVED_PRIORITY_POLICE,
     TC_RESERVED_PRIORITY_IPV4,
     TC_RESERVED_PRIORITY_IPV6,
+    TC_RESERVED_PRIORITY_VLAN,
     __TC_RESERVED_PRIORITY_MAX
 };
 #define TC_RESERVED_PRIORITY_MAX (__TC_RESERVED_PRIORITY_MAX -1)