diff mbox

[dpdk-dev,v2] app/testpmd: add parameter to start forwarding sending

Message ID 20170609023044.75127-1-pablo.de.lara.guarch@intel.com (mailing list archive)
State Superseded, archived
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

De Lara Guarch, Pablo June 9, 2017, 2:30 a.m. UTC 
  Add parameter to start forwarding sending first
a burst of packets, which is useful when testing
a loopback connection.

This was already implemented as an internal command,
but adding it as a parameter is interesting, as it
allows the user to test a loopback connection without
entering in the internal command line.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
---

Changes in v2:

- Added check to prevent user from using --tx-first in interactive mode,
  to avoid confusion
- Added extra information in testpmd help about the new parameter


 app/test-pmd/parameters.c             | 7 +++++++
 app/test-pmd/testpmd.c                | 6 +++++-
 app/test-pmd/testpmd.h                | 1 +
 doc/guides/testpmd_app_ug/run_app.rst | 8 ++++++++
 4 files changed, 21 insertions(+), 1 deletion(-)

Comments

Jingjing Wu June 19, 2017, 12:53 a.m. UTC | #1 
> -----Original Message-----
> From: De Lara Guarch, Pablo
> Sent: Friday, June 9, 2017 10:31 AM
> To: Wu, Jingjing <jingjing.wu@intel.com>
> Cc: dev@dpdk.org; De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> Subject: [PATCH v2] app/testpmd: add parameter to start forwarding sending
> 
> Add parameter to start forwarding sending first a burst of packets, which is
> useful when testing a loopback connection.
> 
> This was already implemented as an internal command, but adding it as a
> parameter is interesting, as it allows the user to test a loopback connection
> without entering in the internal command line.
> 
> Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
diff mbox

Patch

diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c
index fbe6284..163fd01 100644
--- a/app/test-pmd/parameters.c
+++ b/app/test-pmd/parameters.c
@@ -89,6 +89,7 @@  usage(char* progname)
 	       "[--cmdline-file=FILENAME] "
 #endif
 	       "[--help|-h] | [--auto-start|-a] | ["
+	       "--tx-first"
 	       "--coremask=COREMASK --portmask=PORTMASK --numa "
 	       "--mbuf-size= | --total-num-mbufs= | "
 	       "--nb-cores= | --nb-ports= | "
@@ -109,6 +110,8 @@  usage(char* progname)
 	printf("  --auto-start: start forwarding on init "
 	       "[always when non-interactive].\n");
 	printf("  --help: display this message and quit.\n");
+	printf("  --tx-first: start forwarding sending a burst first "
+	       "(only if interactive is disabled).\n");
 	printf("  --nb-cores=N: set the number of forwarding cores "
 	       "(1 <= N <= %d).\n", nb_lcores);
 	printf("  --nb-ports=N: set the number of forwarding ports "
@@ -674,6 +677,10 @@  launch_args_parse(int argc, char** argv)
 				printf("Auto-start selected\n");
 				auto_start = 1;
 			}
+			if (!strcmp(lgopts[opt_idx].name, "tx-first")) {
+				printf("Start TX first\n");
+				tx_first = 1;
+			}
 			if (!strcmp(lgopts[opt_idx].name,
 				    "eth-peers-configfile")) {
 				if (init_peer_eth_addrs(optarg) != 0)
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index d1041af..af32397 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -95,6 +95,7 @@  uint16_t verbose_level = 0; /**< Silent by default. */
 /* use master core for command line ? */
 uint8_t interactive = 0;
 uint8_t auto_start = 0;
+uint8_t tx_first;
 char cmdline_filename[PATH_MAX] = {0};
 
 /*
@@ -2291,6 +2292,9 @@  main(int argc, char** argv)
 	if (argc > 1)
 		launch_args_parse(argc, argv);
 
+	if (tx_first && interactive)
+		rte_exit(EXIT_FAILURE, "--tx-first cannot be used on "
+				"interactive mode");
 	if (!nb_rxq && !nb_txq)
 		printf("Warning: Either rx or tx queues should be non-zero\n");
 
@@ -2350,7 +2354,7 @@  main(int argc, char** argv)
 		int rc;
 
 		printf("No commandline core given, start packet forwarding\n");
-		start_packet_forwarding(0);
+		start_packet_forwarding(tx_first);
 		printf("Press enter to exit\n");
 		rc = read(0, &c, 1);
 		pmd_test_exit();
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index e6c43ba..348aa66 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -299,6 +299,7 @@  extern uint16_t nb_rx_queue_stats_mappings;
 extern uint16_t verbose_level; /**< Drives messages being displayed, if any. */
 extern uint8_t  interactive;
 extern uint8_t  auto_start;
+extern uint8_t  tx_first;
 extern char cmdline_filename[PATH_MAX]; /**< offline commands file */
 extern uint8_t  numa_support; /**< set by "--numa" parameter */
 extern uint16_t port_topology; /**< set by "--port-topology" parameter */
diff --git a/doc/guides/testpmd_app_ug/run_app.rst b/doc/guides/testpmd_app_ug/run_app.rst
index 2a43214..3159398 100644
--- a/doc/guides/testpmd_app_ug/run_app.rst
+++ b/doc/guides/testpmd_app_ug/run_app.rst
@@ -188,6 +188,14 @@  The commandline options are:
 
     Start forwarding on initialization.
 
+*   ``--tx-first``
+
+    Start forwarding, after sending a burst of packets first.
+
+.. Note::
+
+   This flag should be only used in non-interactive mode.
+
 *   ``--nb-cores=N``
 
     Set the number of forwarding cores,