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

[Christophe Fontaine]

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 <cfont...@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