app/testpmd: add command line option for Tx offloads

This patch adds command line option to set hex value for the ports Tx
offloads flags.

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>

app/test-pmd/parameters.c

@@ -70,7 +70,7 @@ usage(char* progname)
 	       "--rss-ip | --rss-udp | "
 	       "--rxpt= | --rxht= | --rxwt= | --rxfreet= | "
 	       "--txpt= | --txht= | --txwt= | --txfreet= | "
-	       "--txrst= | --txqflags= ]\n",
+	       "--txrst= | --txqflags= | --tx-offloads ]\n",
 	       progname);
 #ifdef RTE_LIBRTE_CMDLINE
 	printf("  --interactive: run in interactive mode.\n");
@@ -187,6 +187,7 @@ usage(char* progname)
 	       "disable print of designated event or all of them.\n");
 	printf("  --flow-isolate-all: "
 	       "requests flow API isolated mode on all ports at initialization time.\n");
+	printf("  --tx-offloads=0xXXXXXXXX: hexadecimal bitmask of TX queue offloads\n");
 }
 
 #ifdef RTE_LIBRTE_CMDLINE
@@ -537,8 +538,9 @@ launch_args_parse(int argc, char** argv)
 	char **argvopt;
 	int opt_idx;
 	enum { TX, RX };
-	/* Default Rx offloads for all ports. */
+	/* Default offloads for all ports. */
 	uint64_t rx_offloads = rx_mode.offloads;
+	uint64_t tx_offloads = tx_mode.offloads;
 
 	static struct option lgopts[] = {
 		{ "help",			0, 0, 0 },
@@ -616,6 +618,7 @@ launch_args_parse(int argc, char** argv)
 		{ "no-rmv-interrupt",		0, 0, 0 },
 		{ "print-event",		1, 0, 0 },
 		{ "mask-event",			1, 0, 0 },
+		{ "tx-offloads",		1, 0, 0 },
 		{ 0, 0, 0, 0 },
 	};
 
@@ -1087,6 +1090,15 @@ launch_args_parse(int argc, char** argv)
 				rmv_interrupt = 0;
 			if (!strcmp(lgopts[opt_idx].name, "flow-isolate-all"))
 				flow_isolate_all = 1;
+			if (!strcmp(lgopts[opt_idx].name, "tx-offloads")) {
+				char *end = NULL;
+				n = strtoull(optarg, &end, 16);
+				if (n >= 0)
+					tx_offloads = (uint64_t)n;
+				else
+					rte_exit(EXIT_FAILURE,
+						 "tx-offloads must be >= 0\n");
+			}
 			if (!strcmp(lgopts[opt_idx].name, "print-event"))
 				if (parse_event_printing_config(optarg, 1)) {
 					rte_exit(EXIT_FAILURE,
@@ -1113,4 +1125,5 @@ launch_args_parse(int argc, char** argv)
 
 	/* Set offload configuration from command line parameters. */
 	rx_mode.offloads = rx_offloads;
+	tx_mode.offloads = tx_offloads;
 }

app/test-pmd/testpmd.c

@@ -316,6 +316,8 @@ struct rte_eth_rxmode rx_mode = {
 	.ignore_offload_bitfield = 1,
 };
 
+struct rte_eth_txmode tx_mode;
+
 struct rte_fdir_conf fdir_conf = {
 	.mode = RTE_FDIR_MODE_NONE,
 	.pballoc = RTE_FDIR_PBALLOC_64K,
@@ -576,6 +578,8 @@ init_config(void)
 
 	RTE_ETH_FOREACH_DEV(pid) {
 		port = &ports[pid];
+		/* Apply default Tx configuration for all ports */
+		port->dev_conf.txmode = tx_mode;
 		rte_eth_dev_info_get(pid, &port->dev_info);
 
 		if (numa_support) {

app/test-pmd/testpmd.h

@@ -367,6 +367,8 @@ extern portid_t fwd_ports_ids[RTE_MAX_ETHPORTS];
 extern struct rte_port *ports;
 
 extern struct rte_eth_rxmode rx_mode;
+extern struct rte_eth_txmode tx_mode;
+
 extern uint64_t rss_hf;
 
 extern queueid_t nb_rxq;

doc/guides/testpmd_app_ug/run_app.rst

@@ -509,3 +509,8 @@ The commandline options are:
     configured flow rules only (see flow command).
 
     Ports that do not support this mode are automatically discarded.
+
+*   ``--tx-offloads=0xXXXXXXXX``
+
+    Set the hexadecimal bitmask of TX queue offloads.
+    The default value is 0.