net/dpaa2: add retry and timeout in packet enqueue API

[dpdk.git] / drivers / net / dpaa2 / dpaa2_rxtx.c

diff --git a/drivers/net/dpaa2/dpaa2_rxtx.c b/drivers/net/dpaa2/dpaa2_rxtx.c
index b7b2d86..52d913d 100644 (file)
--- a/drivers/net/dpaa2/dpaa2_rxtx.c
+++ b/drivers/net/dpaa2/dpaa2_rxtx.c
@@ -1135,15 +1135,28 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 #endif
                        bufs++;
                }
+
                loop = 0;
+               retry_count = 0;
                while (loop < frames_to_send) {
-                       loop += qbman_swp_enqueue_multiple(swp, &eqdesc,
+                       ret = qbman_swp_enqueue_multiple(swp, &eqdesc,
                                        &fd_arr[loop], &flags[loop],
                                        frames_to_send - loop);
+                       if (unlikely(ret < 0)) {
+                               retry_count++;
+                               if (retry_count > DPAA2_MAX_TX_RETRY_COUNT) {
+                                       num_tx += loop;
+                                       nb_pkts -= loop;
+                                       goto send_n_return;
+                               }
+                       } else {
+                               loop += ret;
+                               retry_count = 0;
+                       }
                }
 
-               num_tx += frames_to_send;
-               nb_pkts -= frames_to_send;
+               num_tx += loop;
+               nb_pkts -= loop;
        }
        dpaa2_q->tx_pkts += num_tx;
        return num_tx;
@@ -1153,13 +1166,22 @@ send_n_return:
        if (loop) {
                unsigned int i = 0;
 
+               retry_count = 0;
                while (i < loop) {
-                       i += qbman_swp_enqueue_multiple(swp, &eqdesc,
-                                                       &fd_arr[i],
-                                                       &flags[loop],
-                                                       loop - i);
+                       ret = qbman_swp_enqueue_multiple(swp, &eqdesc,
+                                                        &fd_arr[i],
+                                                        &flags[i],
+                                                        loop - i);
+                       if (unlikely(ret < 0)) {
+                               retry_count++;
+                               if (retry_count > DPAA2_MAX_TX_RETRY_COUNT)
+                                       break;
+                       } else {
+                               i += ret;
+                               retry_count = 0;
+                       }
                }
-               num_tx += loop;
+               num_tx += i;
        }
 skip_tx:
        dpaa2_q->tx_pkts += num_tx;
@@ -1365,15 +1387,28 @@ dpaa2_dev_tx_ordered(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                        }
                        bufs++;
                }
+
                loop = 0;
+               retry_count = 0;
                while (loop < frames_to_send) {
-                       loop += qbman_swp_enqueue_multiple_desc(swp,
+                       ret = qbman_swp_enqueue_multiple_desc(swp,
                                        &eqdesc[loop], &fd_arr[loop],
                                        frames_to_send - loop);
+                       if (unlikely(ret < 0)) {
+                               retry_count++;
+                               if (retry_count > DPAA2_MAX_TX_RETRY_COUNT) {
+                                       num_tx += loop;
+                                       nb_pkts -= loop;
+                                       goto send_n_return;
+                               }
+                       } else {
+                               loop += ret;
+                               retry_count = 0;
+                       }
                }
 
-               num_tx += frames_to_send;
-               nb_pkts -= frames_to_send;
+               num_tx += loop;
+               nb_pkts -= loop;
        }
        dpaa2_q->tx_pkts += num_tx;
        return num_tx;
@@ -1383,11 +1418,20 @@ send_n_return:
        if (loop) {
                unsigned int i = 0;
 
+               retry_count = 0;
                while (i < loop) {
-                       i += qbman_swp_enqueue_multiple_desc(swp, &eqdesc[loop],
-                                                       &fd_arr[i], loop - i);
+                       ret = qbman_swp_enqueue_multiple_desc(swp,
+                                      &eqdesc[loop], &fd_arr[i], loop - i);
+                       if (unlikely(ret < 0)) {
+                               retry_count++;
+                               if (retry_count > DPAA2_MAX_TX_RETRY_COUNT)
+                                       break;
+                       } else {
+                               i += ret;
+                               retry_count = 0;
+                       }
                }
-               num_tx += loop;
+               num_tx += i;
        }
 skip_tx:
        dpaa2_q->tx_pkts += num_tx;