[dpdk-dev] [PATCH] crypto/dpaa2_sec: add retry timeout in packet enqueue API

[Nipun Gupta]

This patch adds retry in the DPAA2 SEC packet enqueue API

Signed-off-by: Nipun Gupta <nipun.gu...@nxp.com>
---
 drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c | 27 +++++++++++++++------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c 
b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
index add3b9ea6..cb22631ed 100644
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
@@ -1430,7 +1430,7 @@ dpaa2_sec_enqueue_burst(void *qp, struct rte_crypto_op 
**ops,
        uint32_t loop;
        int32_t ret;
        struct qbman_fd fd_arr[MAX_TX_RING_SLOTS];
-       uint32_t frames_to_send;
+       uint32_t frames_to_send, retry_count;
        struct qbman_eq_desc eqdesc;
        struct dpaa2_sec_qp *dpaa2_qp = (struct dpaa2_sec_qp *)qp;
        struct qbman_swp *swp;
@@ -1488,16 +1488,29 @@ dpaa2_sec_enqueue_burst(void *qp, struct rte_crypto_op 
**ops,
                        }
                        ops++;
                }
+
                loop = 0;
+               retry_count = 0;
                while (loop < frames_to_send) {
-                       loop += qbman_swp_enqueue_multiple(swp, &eqdesc,
-                                                       &fd_arr[loop],
-                                                       &flags[loop],
-                                                       frames_to_send - loop);
+                       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_ops -= loop;
+                                       goto skip_tx;
+                               }
+                       } else {
+                               loop += ret;
+                               retry_count = 0;
+                       }
                }
 
-               num_tx += frames_to_send;
-               nb_ops -= frames_to_send;
+               num_tx += loop;
+               nb_ops -= loop;
        }
 skip_tx:
        dpaa2_qp->tx_vq.tx_pkts += num_tx;
-- 
2.17.1