[dpdk-stable] [PATCH 12/24] net/hns3: check TSO segment size during Tx

["Wei Hu (Xavier)" <huwei013@chinasoftinc.com>]

From: Hongbo Zheng <zhenghongbo3@huawei.com>

[ upstream commit b68259f775b749ae860dfa4e170dd01774bf30d7 ]

Base on hns3 network engine, when the rte_eth_tx_burst API is called
by Upper Level Process, if PKT_TX_TCP_SEG flag is set and tso_segsz
is 0 in the input parameter structure rte_mbuf, hns3 PMD driver will
process this packet as an non-TSO packet, otherwise hardware will enter
an abnormal state.

Fixes: 6dca716c9e1d ("net/hns3: support TSO")
Cc: stable@dpdk.org

Signed-off-by: Hongbo Zheng <zhenghongbo3@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
---
 drivers/net/hns3/hns3_rxtx.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/hns3/hns3_rxtx.c b/drivers/net/hns3/hns3_rxtx.c
index 972dc7101..db07fc459 100644
--- a/drivers/net/hns3/hns3_rxtx.c
+++ b/drivers/net/hns3/hns3_rxtx.c
@@ -1902,6 +1902,12 @@ hns3_tso_proc_tunnel(struct hns3_desc *desc, uint64_t ol_flags,
 	return 0;
 }
 
+static inline bool
+hns3_pkt_is_tso(struct rte_mbuf *m)
+{
+	return (m->tso_segsz != 0 && m->ol_flags & PKT_TX_TCP_SEG);
+}
+
 static void
 hns3_set_tso(struct hns3_desc *desc,
 	     uint64_t ol_flags, struct rte_mbuf *rxm)
@@ -1910,7 +1916,7 @@ hns3_set_tso(struct hns3_desc *desc,
 	uint32_t tmp;
 	uint8_t l2_len = rxm->l2_len;
 
-	if (!(ol_flags & PKT_TX_TCP_SEG))
+	if (!hns3_pkt_is_tso(rxm))
 		return;
 
 	if (hns3_tso_proc_tunnel(desc, ol_flags, rxm, &l2_len))
@@ -2359,12 +2365,6 @@ hns3_outer_header_cksum_prepare(struct rte_mbuf *m)
 	}
 }
 
-static inline bool
-hns3_pkt_is_tso(struct rte_mbuf *m)
-{
-	return (m->tso_segsz != 0 && m->ol_flags & PKT_TX_TCP_SEG);
-}
-
 static int
 hns3_check_tso_pkt_valid(struct rte_mbuf *m)
 {
-- 
2.27.0