app/testpmd: fix NVGRE encap configuration

[ upstream commit 9b0da81 ]

For NVGRE protocol, the default value of 'c_k_s_rsvd0_ver'
must be 0x2000, and protocol type must be 0x6558 in the NVGRE
header.

This patch updates these two configurations while parsing the nvgre
encap.

Fixes: dcd962f ("app/testpmd: add NVGRE encap/decap")

Signed-off-by: Jiawei Wang <jiaweiw@nvidia.com>

app/test-pmd/cmdline_flow.c

@@ -4250,7 +4250,11 @@ parse_vc_action_nvgre_encap(struct context *ctx, const struct token *token,
 		       .src_addr = nvgre_encap_conf.ipv4_src,
 		       .dst_addr = nvgre_encap_conf.ipv4_dst,
 		},
-		.item_nvgre.flow_id = 0,
+		.item_nvgre = {
+			.c_k_s_rsvd0_ver = RTE_BE16(0x2000),
+			.protocol = RTE_BE16(RTE_ETHER_TYPE_TEB),
+			.flow_id = 0,
+		},
 	};
 	memcpy(action_nvgre_encap_data->item_eth.dst.addr_bytes,
 	       nvgre_encap_conf.eth_dst, RTE_ETHER_ADDR_LEN);