[PATCH 1/2] graph: allow non EAL Thread for pipeline mode

[Christophe Fontaine <cfontain@redhat.com>]

rte_graph_model_mcore_dispatch_core_bind relied on
rte_lcore_is_enabled.
Yet, "rte_lcore_is_enabled" only checks for EAL threads, which forbids
external threads (NON EAL) to run a part of the graph.

Verify if the lcore role is not "ROLE_OFF", and return relevant
error code otherwise.

Signed-off-by: Christophe Fontaine <cfontain@redhat.com>
---
 lib/graph/graph.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/lib/graph/graph.c b/lib/graph/graph.c
index 0975bd8d49..146d0a12b4 100644
--- a/lib/graph/graph.c
+++ b/lib/graph/graph.c
@@ -340,17 +340,22 @@ rte_graph_model_mcore_dispatch_core_bind(rte_graph_t id, int lcore)
 {
 	struct graph *graph;
 
-	if (graph_from_id(id) == NULL)
+	if (graph_from_id(id) == NULL) {
+		rte_errno = ENOENT;
 		goto fail;
-	if (!rte_lcore_is_enabled(lcore))
-		SET_ERR_JMP(ENOLINK, fail, "lcore %d not enabled", lcore);
+	}
+
+	if (rte_lcore_has_role(lcore, ROLE_OFF))
+		SET_ERR_JMP(ENOLINK, fail, "lcore %d is invalid", lcore);
 
 	STAILQ_FOREACH(graph, &graph_list, next)
 		if (graph->id == id)
 			break;
 
-	if (graph->graph->model != RTE_GRAPH_MODEL_MCORE_DISPATCH)
+	if (graph->graph->model != RTE_GRAPH_MODEL_MCORE_DISPATCH) {
+		rte_errno = EPERM;
 		goto fail;
+	}
 
 	graph->lcore_id = lcore;
 	graph->graph->dispatch.lcore_id = graph->lcore_id;
-- 
2.43.5