This patch supports querying RSS info by telemetry command.
The command is like:
--> /ethdev/rss_info,0
{
"/ethdev/rss_info": {
"rss_hf": "0x238c",
"rss_key_len": 40,
"rss_key": "6d5a56da255b0ec24167253d43a38fb0d0ca2b\
cbae7b30b477cb2da38030f20c6a42b73bbeac01fa"
}
}
Signed-off-by: Jie Hai <haijie1@huawei.com>
---
lib/ethdev/rte_ethdev.c | 86 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 86 insertions(+)
@@ -7432,6 +7432,90 @@ eth_dev_handle_port_dcb(const char *cmd __rte_unused,
return eth_dev_add_dcb_info(port_id, d);
}
+static int
+eth_dev_add_rss_info(struct rte_eth_rss_conf *rss_conf, struct rte_tel_data *d)
+{
+ const uint32_t key_len = rss_conf->rss_key_len * 2 + 1;
+ char *rss_key;
+ char *key;
+ uint32_t i;
+ int ret;
+
+ key = rte_malloc(NULL, key_len, 0);
+ if (key == NULL)
+ return -ENOMEM;
+
+ rss_key = rte_malloc(NULL, key_len, 0);
+ if (rss_key == NULL) {
+ ret = -ENOMEM;
+ goto free_key;
+ }
+
+ rte_tel_data_start_dict(d);
+ rte_tel_data_add_dict_uint_hex(d, "rss_hf", rss_conf->rss_hf, 0);
+ rte_tel_data_add_dict_uint(d, "rss_key_len", rss_conf->rss_key_len);
+
+ memset(rss_key, 0, key_len);
+ for (i = 0; i < rss_conf->rss_key_len; i++) {
+ ret = snprintf(key, key_len, "%02x", rss_conf->rss_key[i]);
+ if (ret < 0)
+ goto free_rss_key;
+ strlcat(rss_key, key, key_len);
+ }
+ ret = rte_tel_data_add_dict_string(d, "rss_key", rss_key);
+
+free_rss_key:
+ rte_free(rss_key);
+free_key:
+ rte_free(key);
+ return ret;
+}
+
+static int
+eth_dev_handle_port_rss_info(const char *cmd __rte_unused,
+ const char *params,
+ struct rte_tel_data *d)
+{
+ struct rte_eth_dev_info dev_info;
+ struct rte_eth_rss_conf rss_conf;
+ unsigned long port_id;
+ char *end_param;
+ int ret;
+
+ if (params == NULL || strlen(params) == 0 || !isdigit(*params))
+ return -EINVAL;
+
+ port_id = strtoul(params, &end_param, 0);
+ if (*end_param != '\0')
+ RTE_ETHDEV_LOG(NOTICE,
+ "Extra parameters passed to ethdev telemetry command, ignoring\n");
+
+ if (port_id >= UINT16_MAX || !rte_eth_dev_is_valid_port(port_id))
+ return -EINVAL;
+
+ ret = rte_eth_dev_info_get(port_id, &dev_info);
+ if (ret != 0) {
+ RTE_ETHDEV_LOG(ERR,
+ "Failed to get device info, ret = %d\n", ret);
+ return ret;
+ }
+
+ rss_conf.rss_key_len = dev_info.hash_key_size;
+ rss_conf.rss_key = rte_malloc(NULL, dev_info.hash_key_size, 0);
+ if (rss_conf.rss_key == NULL)
+ return -ENOMEM;
+
+ ret = rte_eth_dev_rss_hash_conf_get(port_id, &rss_conf);
+ if (ret != 0) {
+ rte_free(rss_conf.rss_key);
+ return ret;
+ }
+
+ ret = eth_dev_add_rss_info(&rss_conf, d);
+ rte_free(rss_conf.rss_key);
+ return ret;
+}
+
RTE_LOG_REGISTER_DEFAULT(rte_eth_dev_logtype, INFO);
RTE_INIT(ethdev_init_telemetry)
@@ -7463,4 +7547,6 @@ RTE_INIT(ethdev_init_telemetry)
"Returns Tx queue info for a port. Parameters: unsigned port_id, unsigned queue_id (Optional if only one queue)");
rte_telemetry_register_cmd("/ethdev/dcb", eth_dev_handle_port_dcb,
"Returns DCB info for a port. Parameters: unsigned port_id");
+ rte_telemetry_register_cmd("/ethdev/rss_info", eth_dev_handle_port_rss_info,
+ "Returns RSS info for a port. Parameters: unsigned port_id");
}