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authorOz Shlomo <ozsh@nvidia.com>2023-02-12 15:25:15 +0200
committerPaolo Abeni <pabeni@redhat.com>2023-02-14 11:00:01 +0100
commitd307b2c6f962ad5d83d7a7df71c2e9c9e4106d82 (patch)
tree610eba6c7c2d060a997f807804eeec5ae03fb10e /net/sched
parentac7d27907d5445d0accaf998e1dc3ea570ed1ba6 (diff)
net/sched: introduce flow_offload action cookie
Currently a hardware action is uniquely identified by the <id, hw_index> tuple. However, the id is set by the flow_act_setup callback and tc core cannot enforce this, and it is possible that a future change could break this. In addition, <id, hw_index> are not unique across network namespaces. Uniquely identify the action by setting an action cookie by the tc core. Use the unique action cookie to query the action's hardware stats. Signed-off-by: Oz Shlomo <ozsh@nvidia.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/act_api.c1
-rw-r--r--net/sched/cls_api.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index f4fa6d7340f8..917827199102 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -192,6 +192,7 @@ static int offload_action_init(struct flow_offload_action *fl_action,
fl_action->extack = extack;
fl_action->command = cmd;
fl_action->index = act->tcfa_index;
+ fl_action->cookie = (unsigned long)act;
if (act->ops->offload_act_setup) {
spin_lock_bh(&act->tcfa_lock);
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 5b4a95e8a1ee..bfabc9c95fa9 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -3577,6 +3577,7 @@ int tc_setup_action(struct flow_action *flow_action,
for (k = 0; k < index ; k++) {
entry[k].hw_stats = tc_act_hw_stats(act->hw_stats);
entry[k].hw_index = act->tcfa_index;
+ entry[k].act_cookie = (unsigned long)act;
}
j += index;