+/* *** ENABLE HARDWARE SEGMENTATION IN TX TUNNELED PACKETS *** */
+struct cmd_tunnel_tso_set_result {
+ cmdline_fixed_string_t tso;
+ cmdline_fixed_string_t mode;
+ uint16_t tso_segsz;
+ uint8_t port_id;
+};
+
+static void
+check_tunnel_tso_nic_support(uint8_t port_id)
+{
+ struct rte_eth_dev_info dev_info;
+
+ rte_eth_dev_info_get(port_id, &dev_info);
+ if (!(dev_info.tx_offload_capa & DEV_TX_OFFLOAD_VXLAN_TNL_TSO))
+ printf("Warning: TSO enabled but VXLAN TUNNEL TSO not "
+ "supported by port %d\n", port_id);
+ if (!(dev_info.tx_offload_capa & DEV_TX_OFFLOAD_GRE_TNL_TSO))
+ printf("Warning: TSO enabled but GRE TUNNEL TSO not "
+ "supported by port %d\n", port_id);
+ if (!(dev_info.tx_offload_capa & DEV_TX_OFFLOAD_IPIP_TNL_TSO))
+ printf("Warning: TSO enabled but IPIP TUNNEL TSO not "
+ "supported by port %d\n", port_id);
+ if (!(dev_info.tx_offload_capa & DEV_TX_OFFLOAD_GENEVE_TNL_TSO))
+ printf("Warning: TSO enabled but GENEVE TUNNEL TSO not "
+ "supported by port %d\n", port_id);
+}
+
+static void
+cmd_tunnel_tso_set_parsed(void *parsed_result,
+ __attribute__((unused)) struct cmdline *cl,
+ __attribute__((unused)) void *data)
+{
+ struct cmd_tunnel_tso_set_result *res = parsed_result;
+
+ if (port_id_is_invalid(res->port_id, ENABLED_WARN))
+ return;
+
+ if (!strcmp(res->mode, "set"))
+ ports[res->port_id].tunnel_tso_segsz = res->tso_segsz;
+
+ if (ports[res->port_id].tunnel_tso_segsz == 0)
+ printf("TSO for tunneled packets is disabled\n");
+ else {
+ printf("TSO segment size for tunneled packets is %d\n",
+ ports[res->port_id].tunnel_tso_segsz);
+
+ /* Below conditions are needed to make it work:
+ * (1) tunnel TSO is supported by the NIC;
+ * (2) "csum parse_tunnel" must be set so that tunneled pkts
+ * are recognized;
+ * (3) for tunneled pkts with outer L3 of IPv4,
+ * "csum set outer-ip" must be set to hw, because after tso,
+ * total_len of outer IP header is changed, and the checksum
+ * of outer IP header calculated by sw should be wrong; that
+ * is not necessary for IPv6 tunneled pkts because there's no
+ * checksum in IP header anymore.
+ */
+ check_tunnel_tso_nic_support(res->port_id);
+
+ if (!(ports[res->port_id].tx_ol_flags &
+ TESTPMD_TX_OFFLOAD_PARSE_TUNNEL))
+ printf("Warning: csum parse_tunnel must be set "
+ "so that tunneled packets are recognized\n");
+ if (!(ports[res->port_id].tx_ol_flags &
+ TESTPMD_TX_OFFLOAD_OUTER_IP_CKSUM))
+ printf("Warning: csum set outer-ip must be set to hw "
+ "if outer L3 is IPv4; not necessary for IPv6\n");
+ }
+}
+
+cmdline_parse_token_string_t cmd_tunnel_tso_set_tso =
+ TOKEN_STRING_INITIALIZER(struct cmd_tunnel_tso_set_result,
+ tso, "tunnel_tso");
+cmdline_parse_token_string_t cmd_tunnel_tso_set_mode =
+ TOKEN_STRING_INITIALIZER(struct cmd_tunnel_tso_set_result,
+ mode, "set");
+cmdline_parse_token_num_t cmd_tunnel_tso_set_tso_segsz =
+ TOKEN_NUM_INITIALIZER(struct cmd_tunnel_tso_set_result,
+ tso_segsz, UINT16);
+cmdline_parse_token_num_t cmd_tunnel_tso_set_portid =
+ TOKEN_NUM_INITIALIZER(struct cmd_tunnel_tso_set_result,
+ port_id, UINT8);
+
+cmdline_parse_inst_t cmd_tunnel_tso_set = {
+ .f = cmd_tunnel_tso_set_parsed,
+ .data = NULL,
+ .help_str = "Set TSO segment size of tunneled packets for csum engine "
+ "(0 to disable): tunnel_tso set <tso_segsz> <port>",
+ .tokens = {
+ (void *)&cmd_tunnel_tso_set_tso,
+ (void *)&cmd_tunnel_tso_set_mode,
+ (void *)&cmd_tunnel_tso_set_tso_segsz,
+ (void *)&cmd_tunnel_tso_set_portid,
+ NULL,
+ },
+};
+
+cmdline_parse_token_string_t cmd_tunnel_tso_show_mode =
+ TOKEN_STRING_INITIALIZER(struct cmd_tunnel_tso_set_result,
+ mode, "show");
+
+
+cmdline_parse_inst_t cmd_tunnel_tso_show = {
+ .f = cmd_tunnel_tso_set_parsed,
+ .data = NULL,
+ .help_str = "Show TSO segment size of tunneled packets "
+ "for csum engine: tunnel_tso show <port>",
+ .tokens = {
+ (void *)&cmd_tunnel_tso_set_tso,
+ (void *)&cmd_tunnel_tso_show_mode,
+ (void *)&cmd_tunnel_tso_set_portid,
+ NULL,
+ },
+};
+