examples/l3fwd-power: add legacy mode option

[dpdk.git] / examples / l3fwd-power / main.c

diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
index c70611b..c02b0a3 100644 (file)
--- a/examples/l3fwd-power/main.c
+++ b/examples/l3fwd-power/main.c
@@ -195,7 +195,8 @@ static int parse_ptype; /**< Parse packet type using rx callback, and */
                        /**< disabled by default */
 
 enum appmode {
-       APP_MODE_LEGACY = 0,
+       APP_MODE_DEFAULT = 0,
+       APP_MODE_LEGACY,
        APP_MODE_EMPTY_POLL,
        APP_MODE_TELEMETRY
 };
@@ -1435,6 +1436,7 @@ print_usage(const char *prgname)
                "  --enable-jumbo: enable jumbo frame"
                " which max packet len is PKTLEN in decimal (64-9600)\n"
                "  --parse-ptype: parse packet type by software\n"
+               "  --legacy: use legacy interrupt-based scaling\n"
                "  --empty-poll: enable empty poll detection"
                " follow (training_flag, high_threshold, med_threshold)\n"
                " --telemetry: enable telemetry mode, to update"
@@ -1581,6 +1583,7 @@ parse_ep_config(const char *q_arg)
 
 }
 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
+#define CMD_LINE_OPT_LEGACY "legacy"
 #define CMD_LINE_OPT_EMPTY_POLL "empty-poll"
 #define CMD_LINE_OPT_TELEMETRY "telemetry"
 
@@ -1601,6 +1604,7 @@ parse_args(int argc, char **argv)
                {"enable-jumbo", 0, 0, 0},
                {CMD_LINE_OPT_EMPTY_POLL, 1, 0, 0},
                {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
+               {CMD_LINE_OPT_LEGACY, 0, 0, 0},
                {CMD_LINE_OPT_TELEMETRY, 0, 0, 0},
                {NULL, 0, 0, 0}
        };
@@ -1673,10 +1677,21 @@ parse_args(int argc, char **argv)
                                numa_on = 0;
                        }
 
+                       if (!strncmp(lgopts[option_index].name,
+                                       CMD_LINE_OPT_LEGACY,
+                                       sizeof(CMD_LINE_OPT_LEGACY))) {
+                               if (app_mode != APP_MODE_DEFAULT) {
+                                       printf(" legacy mode is mutually exclusive with other modes\n");
+                                       return -1;
+                               }
+                               app_mode = APP_MODE_LEGACY;
+                               printf("legacy mode is enabled\n");
+                       }
+
                        if (!strncmp(lgopts[option_index].name,
                                        CMD_LINE_OPT_EMPTY_POLL, 10)) {
-                               if (app_mode == APP_MODE_TELEMETRY) {
-                                       printf(" empty-poll cannot be enabled as telemetry mode is enabled\n");
+                               if (app_mode != APP_MODE_DEFAULT) {
+                                       printf(" empty-poll mode is mutually exclusive with other modes\n");
                                        return -1;
                                }
                                app_mode = APP_MODE_EMPTY_POLL;
@@ -1693,8 +1708,8 @@ parse_args(int argc, char **argv)
                        if (!strncmp(lgopts[option_index].name,
                                        CMD_LINE_OPT_TELEMETRY,
                                        sizeof(CMD_LINE_OPT_TELEMETRY))) {
-                               if (app_mode == APP_MODE_EMPTY_POLL) {
-                                       printf("telemetry mode cannot be enabled as empty poll mode is enabled\n");
+                               if (app_mode != APP_MODE_DEFAULT) {
+                                       printf(" telemetry mode is mutually exclusive with other modes\n");
                                        return -1;
                                }
                                app_mode = APP_MODE_TELEMETRY;
@@ -2254,6 +2269,9 @@ main(int argc, char **argv)
        if (ret < 0)
                rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
 
+       if (app_mode == APP_MODE_DEFAULT)
+               app_mode = APP_MODE_LEGACY;
+
        /* only legacy and empty poll mode rely on power library */
        if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
                        init_power_library())