[dpdk-stable] patch 'net/iavf: fix releasing mbufs' has been queued to stable release 19.11.6

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 19.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/19/20. 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/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/abf41510fca7349ecc03c412b9919427604d2f38

Thanks.

Luca Boccassi

---
>From abf41510fca7349ecc03c412b9919427604d2f38 Mon Sep 17 00:00:00 2001
From: Ting Xu <ting.xu at intel.com>
Date: Wed, 11 Nov 2020 11:06:51 +0800
Subject: [PATCH] net/iavf: fix releasing mbufs

[ upstream commit 36b8b062885f2b6576818a1c18ffaacb4dccefa5 ]

In the function _iavf_rx_queue_release_mbufs_vec to release rx mbufs,
rxq->rxrearm_nb is given the value of rx descriptor number at last.
However, since the process to release and allocate mbufs lacks the
initialization of rxrearm_nb, if we try to release mbufs next time, it
will return without releasing directly. In this patch, rxrearm_nb is
initialized to be zero in rx queue reset.

Fixes: 319c421f3890 ("net/avf: enable SSE Rx Tx")

Signed-off-by: Ting Xu <ting.xu at intel.com>
Acked-by: Jingjing Wu <jingjing.wu at intel.com>
---
 drivers/net/iavf/iavf_rxtx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/iavf/iavf_rxtx.c b/drivers/net/iavf/iavf_rxtx.c
index 6aafc72e24..9672666567 100644
--- a/drivers/net/iavf/iavf_rxtx.c
+++ b/drivers/net/iavf/iavf_rxtx.c
@@ -167,6 +167,7 @@ reset_rx_queue(struct iavf_rx_queue *rxq)
 	rxq->nb_rx_hold = 0;
 	rxq->pkt_first_seg = NULL;
 	rxq->pkt_last_seg = NULL;
+	rxq->rxrearm_nb = 0;
 }
 
 static inline void
-- 
2.27.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-11-17 11:13:13.916973222 +0000
+++ 0022-net-iavf-fix-releasing-mbufs.patch	2020-11-17 11:13:12.917116528 +0000
@@ -1 +1 @@
-From 36b8b062885f2b6576818a1c18ffaacb4dccefa5 Mon Sep 17 00:00:00 2001
+From abf41510fca7349ecc03c412b9919427604d2f38 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 36b8b062885f2b6576818a1c18ffaacb4dccefa5 ]
+
@@ -14 +15,0 @@
-Cc: stable at dpdk.org
@@ -23 +24 @@
-index baac5d65c8..8f43208c80 100644
+index 6aafc72e24..9672666567 100644
@@ -26 +27 @@
-@@ -194,6 +194,7 @@ reset_rx_queue(struct iavf_rx_queue *rxq)
+@@ -167,6 +167,7 @@ reset_rx_queue(struct iavf_rx_queue *rxq)