app/testpmd: command to configure MTU

Take avantage of the .set_mtu ethdev function and make it possible to configure
MTU on devices using testpmd.

Signed-off-by: Ivan Boule <ivan.boule@6wind.com>
Signed-off-by: David Marchand <david.marchand@6wind.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index f64f2df..e3e51fc 100644 (file)
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -527,6 +527,8 @@ static void cmd_help_long_parsed(void *parsed_result,
                        "port config all (txfreet|txrst|rxfreet) (value)\n"
                        "    Set free threshold for rx/tx, or set"
                        " tx rs bit threshold.\n\n"
+                       "port config mtu X value\n"
+                       "    Set the MTU of port X to a given value\n\n"
                );
        }
 
@@ -1086,6 +1088,57 @@ cmdline_parse_inst_t cmd_config_max_pkt_len = {
        },
 };
 
+/* *** configure port MTU *** */
+struct cmd_config_mtu_result {
+       cmdline_fixed_string_t port;
+       cmdline_fixed_string_t keyword;
+       cmdline_fixed_string_t mtu;
+       uint8_t port_id;
+       uint16_t value;
+};
+
+static void
+cmd_config_mtu_parsed(void *parsed_result,
+                     __attribute__((unused)) struct cmdline *cl,
+                     __attribute__((unused)) void *data)
+{
+       struct cmd_config_mtu_result *res = parsed_result;
+
+       if (res->value < ETHER_MIN_LEN) {
+               printf("mtu cannot be less than %d\n", ETHER_MIN_LEN);
+               return;
+       }
+       port_mtu_set(res->port_id, res->value);
+}
+
+cmdline_parse_token_string_t cmd_config_mtu_port =
+       TOKEN_STRING_INITIALIZER(struct cmd_config_mtu_result, port,
+                                "port");
+cmdline_parse_token_string_t cmd_config_mtu_keyword =
+       TOKEN_STRING_INITIALIZER(struct cmd_config_mtu_result, keyword,
+                                "config");
+cmdline_parse_token_string_t cmd_config_mtu_mtu =
+       TOKEN_STRING_INITIALIZER(struct cmd_config_mtu_result, keyword,
+                                "mtu");
+cmdline_parse_token_num_t cmd_config_mtu_port_id =
+       TOKEN_NUM_INITIALIZER(struct cmd_config_mtu_result, port_id, UINT8);
+cmdline_parse_token_num_t cmd_config_mtu_value =
+       TOKEN_NUM_INITIALIZER(struct cmd_config_mtu_result, value, UINT16);
+
+cmdline_parse_inst_t cmd_config_mtu = {
+       .f = cmd_config_mtu_parsed,
+       .data = NULL,
+       .help_str = "port config mtu value",
+       .tokens = {
+               (void *)&cmd_config_mtu_port,
+               (void *)&cmd_config_mtu_keyword,
+               (void *)&cmd_config_mtu_mtu,
+               (void *)&cmd_config_mtu_port_id,
+               (void *)&cmd_config_mtu_value,
+               NULL,
+       },
+};
+
 /* *** configure rx mode *** */
 struct cmd_config_rx_mode_flag {
        cmdline_fixed_string_t port;
@@ -6553,6 +6606,7 @@ cmdline_parse_ctx_t main_ctx[] = {
        (cmdline_parse_inst_t *)&cmd_config_speed_all,
        (cmdline_parse_inst_t *)&cmd_config_speed_specific,
        (cmdline_parse_inst_t *)&cmd_config_rx_tx,
+       (cmdline_parse_inst_t *)&cmd_config_mtu,
        (cmdline_parse_inst_t *)&cmd_config_max_pkt_len,
        (cmdline_parse_inst_t *)&cmd_config_rx_mode_flag,
        (cmdline_parse_inst_t *)&cmd_config_rss,

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index b654eb8..0023ab2 100644 (file)
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -503,6 +503,19 @@ port_reg_set(portid_t port_id, uint32_t reg_off, uint32_t reg_v)
        display_port_reg_value(port_id, reg_off, reg_v);
 }
 
+void
+port_mtu_set(portid_t port_id, uint16_t mtu)
+{
+       int diag;
+
+       if (port_id_is_invalid(port_id))
+               return;
+       diag = rte_eth_dev_set_mtu(port_id, mtu);
+       if (diag == 0)
+               return;
+       printf("Set MTU failed. diag=%d\n", diag);
+}
+
 /*
  * RX/TX ring descriptors display functions.
  */

diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index aa1942b..5839f93 100644 (file)
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -454,7 +454,7 @@ void fwd_config_setup(void);
 void set_def_fwd_config(void);
 int init_fwd_streams(void);
 
-
+void port_mtu_set(portid_t port_id, uint16_t mtu);
 void port_reg_bit_display(portid_t port_id, uint32_t reg_off, uint8_t bit_pos);
 void port_reg_bit_set(portid_t port_id, uint32_t reg_off, uint8_t bit_pos,
                      uint8_t bit_v);