net/sched: act_pedit, setup offload action for action stats query

A single tc pedit action may be translated to multiple flow_offload
actions.
Offload only actions that translate to a single pedit command value.

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>

diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index c42fcc47dd6d946cd4bc5e5d59be79eedbae793e..35ebe5d5c261aab611a72e86d064688311eca1e2 100644 (file)
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -545,7 +545,28 @@ static int tcf_pedit_offload_act_setup(struct tc_action *act, void *entry_data,
                }
                *index_inc = k;
        } else {
-               return -EOPNOTSUPP;
+               struct flow_offload_action *fl_action = entry_data;
+               u32 cmd = tcf_pedit_cmd(act, 0);
+               int k;
+
+               switch (cmd) {
+               case TCA_PEDIT_KEY_EX_CMD_SET:
+                       fl_action->id = FLOW_ACTION_MANGLE;
+                       break;
+               case TCA_PEDIT_KEY_EX_CMD_ADD:
+                       fl_action->id = FLOW_ACTION_ADD;
+                       break;
+               default:
+                       NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
+                       return -EOPNOTSUPP;
+               }
+
+               for (k = 1; k < tcf_pedit_nkeys(act); k++) {
+                       if (cmd != tcf_pedit_cmd(act, k)) {
+                               NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
+                               return -EOPNOTSUPP;
+                       }
+               }
        }
 
        return 0;