[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.gupta at 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