examples/tep_term: add TSO offload configuration

[dpdk.git] / examples / tep_termination / main.c

diff --git a/examples/tep_termination/main.c b/examples/tep_termination/main.c
index 99dfd73..1673c0f 100644 (file)
--- a/examples/tep_termination/main.c
+++ b/examples/tep_termination/main.c
@@ -114,6 +114,7 @@
 #define CMD_LINE_OPT_NB_DEVICES "nb-devices"
 #define CMD_LINE_OPT_UDP_PORT "udp-port"
 #define CMD_LINE_OPT_TX_CHECKSUM "tx-checksum"
+#define CMD_LINE_OPT_TSO_SEGSZ "tso-segsz"
 #define CMD_LINE_OPT_FILTER_TYPE "filter-type"
 #define CMD_LINE_OPT_RX_RETRY "rx-retry"
 #define CMD_LINE_OPT_RX_RETRY_DELAY "rx-retry-delay"
@@ -145,6 +146,9 @@ uint16_t udp_port = 4789;
 /* enable/disable inner TX checksum */
 uint8_t tx_checksum = 0;
 
+/* TCP segment size */
+uint16_t tso_segsz = 0;
+
 /* RX filter type for tunneling packet */
 uint8_t filter_idx = 1;
 
@@ -265,6 +269,7 @@ tep_termination_usage(const char *prgname)
        "               --udp-port: UDP destination port for VXLAN packet\n"
        "               --nb-devices[1-64]: The number of virtIO device\n"
        "               --tx-checksum [0|1]: inner Tx checksum offload\n"
+       "               --tso-segsz [0-N]: TCP segment size\n"
        "               --filter-type[1-3]: filter type for tunneling packet\n"
        "                   1: Inner MAC and tenent ID\n"
        "                   2: Inner MAC and VLAN, and tenent ID\n"
@@ -295,6 +300,7 @@ tep_termination_parse_args(int argc, char **argv)
                {CMD_LINE_OPT_NB_DEVICES, required_argument, NULL, 0},
                {CMD_LINE_OPT_UDP_PORT, required_argument, NULL, 0},
                {CMD_LINE_OPT_TX_CHECKSUM, required_argument, NULL, 0},
+               {CMD_LINE_OPT_TSO_SEGSZ, required_argument, NULL, 0},
                {CMD_LINE_OPT_FILTER_TYPE, required_argument, NULL, 0},
                {CMD_LINE_OPT_RX_RETRY, required_argument, NULL, 0},
                {CMD_LINE_OPT_RX_RETRY_DELAY, required_argument, NULL, 0},
@@ -347,6 +353,19 @@ tep_termination_parse_args(int argc, char **argv)
                                        enable_retry = ret;
                        }
 
+                       if (!strncmp(long_option[option_index].name,
+                               CMD_LINE_OPT_TSO_SEGSZ,
+                               sizeof(CMD_LINE_OPT_TSO_SEGSZ))) {
+                               ret = parse_num_opt(optarg, INT16_MAX);
+                               if (ret == -1) {
+                                       RTE_LOG(INFO, VHOST_CONFIG,
+                                               "Invalid argument for TCP segment size [0-N]\n");
+                                       tep_termination_usage(prgname);
+                                       return -1;
+                               } else
+                                       tso_segsz = ret;
+                       }
+
                        if (!strncmp(long_option[option_index].name,
                                        CMD_LINE_OPT_UDP_PORT,
                                        sizeof(CMD_LINE_OPT_UDP_PORT))) {