net/hns3: fix processing Tx offload flags

[ upstream commit a1d0caa ]

Currently, if the PKT_TX_TCP_SEG and PKT_TX_TCP_CKSUM offload flags set
in the same time, hns3 PMD can not process the descriptors correctly.

This patch fixes it by adding the processing of this situation.

Fixes: fb6eb90 ("net/hns3: fix Tx checksum with fixed header length")

Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>

drivers/net/hns3/hns3_rxtx.c

@@ -3083,6 +3083,7 @@ hns3_parse_l4_cksum_params(struct rte_mbuf *m, uint32_t *type_cs_vlan_tso_len)
 	uint32_t tmp;
 	/* Enable L4 checksum offloads */
 	switch (ol_flags & (PKT_TX_L4_MASK | PKT_TX_TCP_SEG)) {
+	case PKT_TX_TCP_CKSUM | PKT_TX_TCP_SEG:
 	case PKT_TX_TCP_CKSUM:
 	case PKT_TX_TCP_SEG:
 		tmp = *type_cs_vlan_tso_len;