kni: support async user request

[dpdk.git] / lib / librte_kni / rte_kni.c

diff --git a/lib/librte_kni/rte_kni.c b/lib/librte_kni/rte_kni.c
index 837d021..9dae6a8 100644 (file)
--- a/lib/librte_kni/rte_kni.c
+++ b/lib/librte_kni/rte_kni.c
@@ -591,8 +591,11 @@ rte_kni_handle_request(struct rte_kni *kni)
                break;
        }
 
-       /* Construct response mbuf and put it back to resp_q */
-       ret = kni_fifo_put(kni->resp_q, (void **)&req, 1);
+       /* if needed, construct response buffer and put it back to resp_q */
+       if (!req->async)
+               ret = kni_fifo_put(kni->resp_q, (void **)&req, 1);
+       else
+               ret = 1;
        if (ret != 1) {
                RTE_LOG(ERR, KNI, "Fail to put the muf back to resp_q\n");
                return -1; /* It is an error of can't putting the mbuf back */