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From: Haiyue Wang <haiyue.wang@intel.com>
To: dev@dpdk.org, qiming.yang@intel.com, qi.z.zhang@intel.com
Cc: ting.xu@intel.com, chenmin.sun@intel.com, yinan.wang@intel.com,
	Haiyue Wang <haiyue.wang@intel.com>,
	stable@dpdk.org
Subject: [dpdk-stable] [PATCH v1] net/ice: fix burst Tx descriptor set issue
Date: Fri, 31 Jul 2020 12:27:13 +0800
Message-ID: <20200731042713.209949-1-haiyue.wang@intel.com> (raw)

The variables 'td_offset' and 'td_tag' should be reset to 0 for every
burst packet, otherwise the fields of Tx Descriptor will be set wrong,
this will cause the MDD event error, and Tx will hang.

Fixes: 17c7d0f9d6a4 ("net/ice: support basic Rx/Tx")
Cc: stable@dpdk.org

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
---
 drivers/net/ice/ice_rxtx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index bcb67ec25..b83c5c862 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c
@@ -2431,6 +2431,8 @@ ice_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 		tx_pkt = *tx_pkts++;
 
 		td_cmd = 0;
+		td_tag = 0;
+		td_offset = 0;
 		ol_flags = tx_pkt->ol_flags;
 		tx_offload.l2_len = tx_pkt->l2_len;
 		tx_offload.l3_len = tx_pkt->l3_len;
-- 
2.28.0


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Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-31  4:27 Haiyue Wang [this message]
2020-07-31  5:56 ` Zhang, Qi Z

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