[dpdk-dev] [PATCH V3 3/3] app/testpmd: add FEC command

["Min Hu (Connor)" <humin29@huawei.com>]

This commit adds testpmd capability to query and config FEC
function of device. This includes:
- show FEC capabilities, example:
	testpmd> show port 0 fec capabilities
- show FEC mode, example:
	testpmd> show port 0 fec_mode
- config FEC mode, example:
	testpmd> set port <port_id> 0 <auto|off|rs|baser>

	where:

	auto|off|rs|baser are four kinds of FEC mode which dev
	support according to MAC link speed.

Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Reviewed-by: Chengwen Feng <fengchengwen@huawei.com>
Reviewed-by: Chengchang Tang <tangchengchang@huawei.com>

----
v2->v3:
adjust the display format of FEC capability.
---
 app/test-pmd/cmdline.c | 219 +++++++++++++++++++++++++++++++++++++++++++++++++
 app/test-pmd/config.c  |  54 ++++++++++++
 app/test-pmd/testpmd.h |   2 +
 3 files changed, 275 insertions(+)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 0a6ed85..072f390 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -19054,6 +19054,222 @@ cmdline_parse_inst_t cmd_show_tx_metadata = {
 	},
 };
 
+/* *** show fec capability per port configuration *** */
+struct cmd_show_fec_capability_result {
+	cmdline_fixed_string_t cmd_show;
+	cmdline_fixed_string_t cmd_port;
+	cmdline_fixed_string_t cmd_fec;
+	cmdline_fixed_string_t cmd_keyword;
+	portid_t cmd_pid;
+};
+
+static void
+cmd_show_fec_capability_parsed(void *parsed_result,
+		__rte_unused struct cmdline *cl,
+		__rte_unused void *data)
+{
+	struct cmd_show_fec_capability_result *res = parsed_result;
+	uint8_t fec_cap;
+	int ret;
+
+	if (!rte_eth_dev_is_valid_port(res->cmd_pid)) {
+		printf("Invalid port id %u\n", res->cmd_pid);
+		return;
+	}
+
+	ret = rte_eth_fec_get_capability(res->cmd_pid, &fec_cap);
+	if (ret == -ENOTSUP) {
+		printf("Function not implemented\n");
+		return;
+	} else if (ret < 0) {
+		printf("Get FEC capability failed\n");
+		return;
+	}
+
+	show_fec_capability(fec_cap);
+}
+
+cmdline_parse_token_string_t cmd_show_fec_capability_show =
+	TOKEN_STRING_INITIALIZER(struct cmd_show_fec_capability_result,
+			cmd_show, "show");
+cmdline_parse_token_string_t cmd_show_fec_capability_port =
+	TOKEN_STRING_INITIALIZER(struct cmd_show_fec_capability_result,
+			cmd_port, "port");
+cmdline_parse_token_num_t cmd_show_fec_capability_pid =
+	TOKEN_NUM_INITIALIZER(struct cmd_show_fec_capability_result,
+			cmd_pid, UINT16);
+cmdline_parse_token_string_t cmd_show_fec_capability_fec =
+	TOKEN_STRING_INITIALIZER(struct cmd_show_fec_capability_result,
+			cmd_fec, "fec");
+cmdline_parse_token_string_t cmd_show_fec_capability_keyword =
+	TOKEN_STRING_INITIALIZER(struct cmd_show_fec_capability_result,
+			cmd_keyword, "capabilities");
+
+cmdline_parse_inst_t cmd_show_capability = {
+	.f = cmd_show_fec_capability_parsed,
+	.data = NULL,
+	.help_str = "show port <port_id> fec capabilities",
+	.tokens = {
+		(void *)&cmd_show_fec_capability_show,
+		(void *)&cmd_show_fec_capability_port,
+		(void *)&cmd_show_fec_capability_pid,
+		(void *)&cmd_show_fec_capability_fec,
+		(void *)&cmd_show_fec_capability_keyword,
+		NULL,
+	},
+};
+
+/* *** show fec mode per port configuration *** */
+struct cmd_show_fec_metadata_result {
+	cmdline_fixed_string_t cmd_show;
+	cmdline_fixed_string_t cmd_port;
+	cmdline_fixed_string_t cmd_keyword;
+	portid_t cmd_pid;
+};
+
+static void
+cmd_show_fec_mode_parsed(void *parsed_result,
+		__rte_unused struct cmdline *cl,
+		__rte_unused void *data)
+{
+#define FEC_NAME_SIZE 16
+	struct cmd_show_fec_metadata_result *res = parsed_result;
+	enum rte_fec_mode mode;
+	char buf[FEC_NAME_SIZE];
+	int ret;
+
+	if (!rte_eth_dev_is_valid_port(res->cmd_pid)) {
+		printf("Invalid port id %u\n", res->cmd_pid);
+		return;
+	}
+	ret = rte_eth_fec_get(res->cmd_pid, &mode);
+	if (ret == -ENOTSUP) {
+		printf("Function not implemented\n");
+		return;
+	} else if (ret < 0) {
+		printf("Get FEC mode failed\n");
+		return;
+	}
+
+	switch (mode) {
+	case ETH_FEC_NOFEC:
+		strlcpy(buf, "off", sizeof(buf));
+		break;
+	case ETH_FEC_BASER:
+		strlcpy(buf, "baser", sizeof(buf));
+		break;
+	case ETH_FEC_RS:
+		strlcpy(buf, "rs", sizeof(buf));
+		break;
+	case ETH_FEC_AUTO:
+		strlcpy(buf, "auto", sizeof(buf));
+		break;
+	default:
+		return;
+	}
+
+	printf("%s\n", buf);
+}
+
+cmdline_parse_token_string_t cmd_show_fec_mode_show =
+	TOKEN_STRING_INITIALIZER(struct cmd_show_fec_metadata_result,
+			cmd_show, "show");
+cmdline_parse_token_string_t cmd_show_fec_mode_port =
+	TOKEN_STRING_INITIALIZER(struct cmd_show_fec_metadata_result,
+			cmd_port, "port");
+cmdline_parse_token_num_t cmd_show_fec_mode_pid =
+	TOKEN_NUM_INITIALIZER(struct cmd_show_fec_metadata_result,
+			cmd_pid, UINT16);
+cmdline_parse_token_string_t cmd_show_fec_mode_keyword =
+	TOKEN_STRING_INITIALIZER(struct cmd_show_fec_metadata_result,
+			cmd_keyword, "fec_mode");
+
+cmdline_parse_inst_t cmd_show_fec_mode = {
+	.f = cmd_show_fec_mode_parsed,
+	.data = NULL,
+	.help_str = "show port <port_id> fec_mode",
+	.tokens = {
+		(void *)&cmd_show_fec_mode_show,
+		(void *)&cmd_show_fec_mode_port,
+		(void *)&cmd_show_fec_mode_pid,
+		(void *)&cmd_show_fec_mode_keyword,
+		NULL,
+	},
+};
+
+/* *** set fec mode per port configuration *** */
+struct cmd_set_port_fec_mode {
+	cmdline_fixed_string_t set;
+	cmdline_fixed_string_t port;
+	portid_t port_id;
+	cmdline_fixed_string_t fec_mode;
+	cmdline_fixed_string_t fec_value;
+};
+
+/* Common CLI fields for set fec mode */
+cmdline_parse_token_string_t cmd_set_port_fec_mode_set =
+	TOKEN_STRING_INITIALIZER
+		(struct cmd_set_port_fec_mode,
+		 set, "set");
+cmdline_parse_token_string_t cmd_set_port_fec_mode_port =
+	TOKEN_STRING_INITIALIZER
+		(struct cmd_set_port_fec_mode,
+		 port, "port");
+cmdline_parse_token_num_t cmd_set_port_fec_mode_port_id =
+	TOKEN_NUM_INITIALIZER
+		(struct cmd_set_port_fec_mode,
+		 port_id, UINT16);
+cmdline_parse_token_string_t cmd_set_port_fec_mode_str =
+	TOKEN_STRING_INITIALIZER
+		(struct cmd_set_port_fec_mode,
+		 fec_mode, "fec_mode");
+cmdline_parse_token_string_t cmd_set_port_fec_mode_value =
+	TOKEN_STRING_INITIALIZER
+		(struct cmd_set_port_fec_mode,
+		 fec_value, NULL);
+
+static void
+cmd_set_port_fec_mode_parsed(
+	void *parsed_result,
+	__rte_unused struct cmdline *cl,
+	__rte_unused void *data)
+{
+	struct cmd_set_port_fec_mode *res = parsed_result;
+	uint16_t port_id = res->port_id;
+	enum rte_fec_mode mode;
+	int ret;
+
+	ret = parse_fec_mode(res->fec_value, &mode);
+	if (ret < 0) {
+		printf("Unknown fec mode: %s for Port %d", res->fec_value,
+			port_id);
+		return;
+	}
+
+	ret = rte_eth_fec_set(port_id, mode);
+	if (ret == -ENOTSUP) {
+		printf("Function not implemented\n");
+		return;
+	} else if (ret < 0) {
+		printf("Set FEC mode failed\n");
+		return;
+	}
+}
+
+cmdline_parse_inst_t cmd_set_fec_mode = {
+	.f = cmd_set_port_fec_mode_parsed,
+	.data = NULL,
+	.help_str = "set port <port_id> fec_mode <auto|off|rs|baser>",
+	.tokens = {
+		(void *)&cmd_set_port_fec_mode_set,
+		(void *)&cmd_set_port_fec_mode_port,
+		(void *)&cmd_set_port_fec_mode_port_id,
+		(void *)&cmd_set_port_fec_mode_str,
+		(void *)&cmd_set_port_fec_mode_value,
+		NULL,
+	},
+};
+
 /* show port supported ptypes */
 
 /* Common result structure for show port ptypes */
@@ -19685,6 +19901,9 @@ cmdline_parse_ctx_t main_ctx[] = {
 	(cmdline_parse_inst_t *)&cmd_show_set_raw,
 	(cmdline_parse_inst_t *)&cmd_show_set_raw_all,
 	(cmdline_parse_inst_t *)&cmd_config_tx_dynf_specific,
+	(cmdline_parse_inst_t *)&cmd_show_fec_mode,
+	(cmdline_parse_inst_t *)&cmd_set_fec_mode,
+	(cmdline_parse_inst_t *)&cmd_show_capability,
 	NULL,
 };
 
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 30bee33..6048f19 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -138,6 +138,28 @@ const struct rss_type_info rss_type_table[] = {
 	{ NULL, 0 },
 };
 
+static const struct {
+	enum rte_fec_mode mode;
+	const char *name;
+} fec_mode_name[] = {
+	{
+		.mode = ETH_FEC_NOFEC,
+		.name = "off",
+	},
+	{
+		.mode = ETH_FEC_BASER,
+		.name = "baser",
+	},
+	{
+		.mode = ETH_FEC_RS,
+		.name = "rs",
+	},
+	{
+		.mode = ETH_FEC_AUTO,
+		.name = "auto",
+	},
+};
+
 static void
 print_ethaddr(const char *name, struct rte_ether_addr *eth_addr)
 {
@@ -2967,6 +2989,38 @@ set_tx_pkt_split(const char *name)
 	printf("unknown value: \"%s\"\n", name);
 }
 
+int
+parse_fec_mode(const char *name, enum rte_fec_mode *mode)
+{
+	uint8_t i;
+
+	for (i = 0; i < RTE_DIM(fec_mode_name); i++) {
+		if (strcmp(fec_mode_name[i].name, name) == 0) {
+			*mode = fec_mode_name[i].mode;
+			return 0;
+		}
+	}
+	return -1;
+}
+
+void
+show_fec_capability(uint8_t fec_cap)
+{
+	uint8_t i;
+
+	if (fec_cap == 0) {
+		printf("FEC is not supported\n");
+		return;
+	}
+
+	printf("FEC capabilities: ");
+	for (i = ETH_FEC_BASER; i <= ETH_FEC_AUTO; i++) {
+		if (fec_cap & 1U << i)
+			printf("%s ", fec_mode_name[i].name);
+	}
+	printf("\n");
+}
+
 void
 show_tx_pkt_segments(void)
 {
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index 25a12b1..7ab91ad 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -778,6 +778,8 @@ void show_tx_pkt_segments(void);
 void set_tx_pkt_times(unsigned int *tx_times);
 void show_tx_pkt_times(void);
 void set_tx_pkt_split(const char *name);
+int parse_fec_mode(const char *name, enum rte_fec_mode *mode);
+void show_fec_capability(uint8_t fec_cap);
 void set_nb_pkt_per_burst(uint16_t pkt_burst);
 char *list_pkt_forwarding_modes(void);
 char *list_pkt_forwarding_retry_modes(void);
-- 
2.7.4