From: Haiyue Wang <haiyue.wang@intel.com>
Date: Fri, 31 Jul 2020 04:27:13 +0000 (+0800)
Subject: net/ice: fix Tx hang with TSO
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=8a72edd9cb232b868c38373e041b03db1220e779;p=dpdk.git

net/ice: fix Tx hang with TSO

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>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
---

diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index bcb67ec251..b83c5c8629 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;