patch 'crypto/dpaa2_sec: fix fle buffer leak' has been queued to stable release 20.11.6

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 20.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/23/22. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/steevenlee/dpdk

This queued commit can be viewed at:
https://github.com/steevenlee/dpdk/commit/2a680bbbc72df42818ae33007df4e82aaa2fee5f

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From 2a680bbbc72df42818ae33007df4e82aaa2fee5f Mon Sep 17 00:00:00 2001
From: Gagandeep Singh <g.singh at nxp.com>
Date: Thu, 28 Apr 2022 17:17:20 +0530
Subject: [PATCH] crypto/dpaa2_sec: fix fle buffer leak
Cc: Xueming Li <xuemingl at nvidia.com>

[ upstream commit 6a2b01a4106402be0aa50e3e3b1e5098e3a9b646 ]

Driver allocates a fle buffer for each packet
before enqueue and free the buffer on dequeue. But in case if
there are enqueue failures, then code should free the fle buffers.

Fixes: 4562de326d30 ("crypto/dpaa2_sec: support ordered queue")
Fixes: 3ffce51a1f04 ("crypto/dpaa2_sec: add enqueue retry timeout")

Signed-off-by: Gagandeep Singh <g.singh at nxp.com>
Acked-by: Akhil Goyal <gakhil at marvell.com>
---
 drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c | 29 ++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
index 7e728d1cf7..c9e378d467 100644
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  *
  *   Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
- *   Copyright 2016-2020 NXP
+ *   Copyright 2016-2022 NXP
  *
  */
 
@@ -59,6 +59,27 @@
 
 static uint8_t cryptodev_driver_id;
 
+static inline void
+free_fle(const struct qbman_fd *fd)
+{
+	struct qbman_fle *fle;
+	struct rte_crypto_op *op;
+	struct ctxt_priv *priv;
+
+#ifdef RTE_LIB_SECURITY
+	if (DPAA2_FD_GET_FORMAT(fd) == qbman_fd_single)
+		return;
+#endif
+	fle = (struct qbman_fle *)DPAA2_IOVA_TO_VADDR(DPAA2_GET_FD_ADDR(fd));
+	op = (struct rte_crypto_op *)DPAA2_GET_FLE_ADDR((fle - 1));
+	/* free the fle memory */
+	if (likely(rte_pktmbuf_is_contiguous(op->sym->m_src))) {
+		priv = (struct ctxt_priv *)(size_t)DPAA2_GET_FLE_CTXT(fle - 1);
+		rte_mempool_put(priv->fle_pool, (void *)(fle-1));
+	} else
+		rte_free((void *)(fle-1));
+}
+
 #ifdef RTE_LIB_SECURITY
 static inline int
 build_proto_compound_sg_fd(dpaa2_sec_session *sess,
@@ -1508,6 +1529,12 @@ dpaa2_sec_enqueue_burst(void *qp, struct rte_crypto_op **ops,
 				if (retry_count > DPAA2_MAX_TX_RETRY_COUNT) {
 					num_tx += loop;
 					nb_ops -= loop;
+					DPAA2_SEC_DP_DEBUG("Enqueue fail\n");
+					/* freeing the fle buffers */
+					while (loop < frames_to_send) {
+						free_fle(&fd_arr[loop]);
+						loop++;
+					}
 					goto skip_tx;
 				}
 			} else {
-- 
2.35.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-06-21 15:37:50.022687811 +0800
+++ 0016-crypto-dpaa2_sec-fix-fle-buffer-leak.patch	2022-06-21 15:37:48.984451063 +0800
@@ -1 +1 @@
-From 6a2b01a4106402be0aa50e3e3b1e5098e3a9b646 Mon Sep 17 00:00:00 2001
+From 2a680bbbc72df42818ae33007df4e82aaa2fee5f Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Xueming Li <xuemingl at nvidia.com>
+
+[ upstream commit 6a2b01a4106402be0aa50e3e3b1e5098e3a9b646 ]
@@ -12 +14,0 @@
-Cc: stable at dpdk.org
@@ -17,2 +19,2 @@
- drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c | 35 ++++++++++++++++++++-
- 1 file changed, 34 insertions(+), 1 deletion(-)
+ drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c | 29 ++++++++++++++++++++-
+ 1 file changed, 28 insertions(+), 1 deletion(-)
@@ -21 +23 @@
-index e62d04852b..03fef5e500 100644
+index 7e728d1cf7..c9e378d467 100644
@@ -28 +30 @@
-- *   Copyright 2016-2021 NXP
+- *   Copyright 2016-2020 NXP
@@ -33,3 +35,3 @@
-@@ -64,6 +64,27 @@ enum dpaa2_sec_dump_levels {
- uint8_t cryptodev_driver_id;
- uint8_t dpaa2_sec_dp_dump = DPAA2_SEC_DP_ERR_DUMP;
+@@ -59,6 +59,27 @@
+ 
+ static uint8_t cryptodev_driver_id;
@@ -61,14 +63 @@
-@@ -1513,6 +1534,12 @@ dpaa2_sec_enqueue_burst(void *qp, struct rte_crypto_op **ops,
- 				if (retry_count > DPAA2_MAX_TX_RETRY_COUNT) {
- 					num_tx += loop;
- 					nb_ops -= loop;
-+					DPAA2_SEC_DP_DEBUG("Enqueue fail\n");
-+					/* freeing the fle buffers */
-+					while (loop < frames_to_send) {
-+						free_fle(&fd_arr[loop]);
-+						loop++;
-+					}
- 					goto skip_tx;
- 				}
- 			} else {
-@@ -1854,6 +1881,12 @@ dpaa2_sec_enqueue_burst_ordered(void *qp, struct rte_crypto_op **ops,
+@@ -1508,6 +1529,12 @@ dpaa2_sec_enqueue_burst(void *qp, struct rte_crypto_op **ops,