[PATCH v2] examples/ethtool: fix pause configuration

[Huisong Li <lihuisong@huawei.com>]

Currently, the pause command in ethtool to enable Rx/Tx pause has the
following problem. Namely, Assume that the device supports flow control
auto-negotiation to set pause parameters, which will the device that does
not support flow control auto-negotiation fails to run this command.

This patch supports the configuration of flow control auto-negotiation
and fixes the print format and style of the pause cmd to make it more
readable.

Fixes: bda68ab9d1e7 ("examples/ethtool: add user-space ethtool sample application")
Cc: stable@dpdk.org

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
---
 -v2: add acked-by Stephen Hemminger <stephen@networkplumber.org>

---
 examples/ethtool/ethtool-app/ethapp.c | 59 ++++++++++++++++-----------
 1 file changed, 36 insertions(+), 23 deletions(-)

diff --git a/examples/ethtool/ethtool-app/ethapp.c b/examples/ethtool/ethtool-app/ethapp.c
index 4ea504ed6a..489cd4f515 100644
--- a/examples/ethtool/ethtool-app/ethapp.c
+++ b/examples/ethtool/ethtool-app/ethapp.c
@@ -51,6 +51,13 @@ struct pcmd_intintint_params {
 	uint16_t rx;
 };
 
+struct pcmd_pause_params {
+	cmdline_fixed_string_t cmd;
+	uint16_t port;
+	cmdline_fixed_string_t mode;
+	cmdline_fixed_string_t autoneg;
+	cmdline_fixed_string_t an_status;
+};
 
 /* Parameter-less commands */
 cmdline_parse_token_string_t pcmd_quit_token_cmd =
@@ -118,12 +125,18 @@ cmdline_parse_token_num_t pcmd_intintint_token_rx =
 
 /* Pause commands */
 cmdline_parse_token_string_t pcmd_pause_token_cmd =
-	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params, cmd, "pause");
+	TOKEN_STRING_INITIALIZER(struct pcmd_pause_params, cmd, "pause");
 cmdline_parse_token_num_t pcmd_pause_token_port =
-	TOKEN_NUM_INITIALIZER(struct pcmd_intstr_params, port, RTE_UINT16);
-cmdline_parse_token_string_t pcmd_pause_token_opt =
-	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params,
-		opt, "all#tx#rx#none");
+	TOKEN_NUM_INITIALIZER(struct pcmd_pause_params, port, RTE_UINT16);
+cmdline_parse_token_string_t pcmd_pause_token_mode =
+	TOKEN_STRING_INITIALIZER(struct pcmd_pause_params,
+		mode, "full#tx#rx#none");
+cmdline_parse_token_string_t pcmd_pause_token_autoneg =
+	TOKEN_STRING_INITIALIZER(struct pcmd_pause_params,
+		autoneg, "autoneg");
+cmdline_parse_token_string_t pcmd_pause_token_an_status =
+	TOKEN_STRING_INITIALIZER(struct pcmd_pause_params,
+		an_status, "on#off");
 
 /* VLAN commands */
 cmdline_parse_token_string_t pcmd_vlan_token_cmd =
@@ -350,13 +363,12 @@ pcmd_module_eeprom_callback(void *ptr_params,
 	fclose(fp_eeprom);
 }
 
-
 static void
 pcmd_pause_callback(void *ptr_params,
 	__rte_unused struct cmdline *ctx,
 	void *ptr_data)
 {
-	struct pcmd_intstr_params *params = ptr_params;
+	struct pcmd_pause_params *params = ptr_params;
 	struct ethtool_pauseparam info;
 	int stat;
 
@@ -368,39 +380,38 @@ pcmd_pause_callback(void *ptr_params,
 		stat = rte_ethtool_get_pauseparam(params->port, &info);
 	} else {
 		memset(&info, 0, sizeof(info));
-		if (strcasecmp("all", params->opt) == 0) {
+		if (strcasecmp("full", params->mode) == 0) {
 			info.tx_pause = 1;
 			info.rx_pause = 1;
-		} else if (strcasecmp("tx", params->opt) == 0) {
+		} else if (strcasecmp("tx", params->mode) == 0) {
 			info.tx_pause = 1;
 			info.rx_pause = 0;
-		} else if (strcasecmp("rx", params->opt) == 0) {
+		} else if (strcasecmp("rx", params->mode) == 0) {
 			info.tx_pause = 0;
 			info.rx_pause = 1;
 		} else {
 			info.tx_pause = 0;
 			info.rx_pause = 0;
 		}
-		/* Assume auto-negotiation wanted */
-		info.autoneg = 1;
+
+		if (strcasecmp("on", params->an_status) == 0)
+			info.autoneg = 1;
+		else
+			info.autoneg = 0;
+
 		stat = rte_ethtool_set_pauseparam(params->port, &info);
 	}
 	if (stat == 0) {
-		if (info.rx_pause && info.tx_pause)
-			printf("Port %i: Tx & Rx Paused\n", params->port);
-		else if (info.rx_pause)
-			printf("Port %i: Rx Paused\n", params->port);
-		else if (info.tx_pause)
-			printf("Port %i: Tx Paused\n", params->port);
-		else
-			printf("Port %i: Tx & Rx not paused\n", params->port);
+		printf("Pause parameters for Port %i:\n", params->port);
+		printf("Rx pause: %s\n", info.rx_pause ? "on" : "off");
+		printf("Tx pause: %s\n", info.tx_pause ? "on" : "off");
+		printf("Autoneg: %s\n", info.autoneg ? "on" : "off");
 	} else if (stat == -ENOTSUP)
 		printf("Port %i: Operation not supported\n", params->port);
 	else
 		printf("Port %i: Error %i\n", params->port, stat);
 }
 
-
 static void
 pcmd_open_callback(__rte_unused void *ptr_params,
 	__rte_unused struct cmdline *ctx,
@@ -737,11 +748,13 @@ cmdline_parse_inst_t pcmd_pause = {
 	.f = pcmd_pause_callback,
 	.data = NULL,
 	.help_str =
-		"pause <port_id> <all|tx|rx|none>\n     Pause/unpause port",
+		"pause <port_id> <full|tx|rx|none> autoneg <on|off>\n     Pause/unpause port",
 	.tokens = {
 		(void *)&pcmd_pause_token_cmd,
 		(void *)&pcmd_pause_token_port,
-		(void *)&pcmd_pause_token_opt,
+		(void *)&pcmd_pause_token_mode,
+		(void *)&pcmd_pause_token_autoneg,
+		(void *)&pcmd_pause_token_an_status,
 		NULL
 	},
 };
-- 
2.33.0