[dpdk-dev] [v9 4/4] net/cnxk: add telemetry endpoints to ethdev

[Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>]

Add telemetry endpoints to ethdev.

Signed-off-by: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>
---
 drivers/net/cnxk/cnxk_ethdev_telemetry.c | 93 ++++++++++++++++++++++++
 drivers/net/cnxk/meson.build             |  1 +
 2 files changed, 94 insertions(+)
 create mode 100644 drivers/net/cnxk/cnxk_ethdev_telemetry.c

diff --git a/drivers/net/cnxk/cnxk_ethdev_telemetry.c b/drivers/net/cnxk/cnxk_ethdev_telemetry.c
new file mode 100644
index 0000000000..83bc65848c
--- /dev/null
+++ b/drivers/net/cnxk/cnxk_ethdev_telemetry.c
@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell International Ltd.
+ */
+
+#include <rte_telemetry.h>
+
+#include "cnxk_ethdev.h"
+
+/* Macro to count no of words in eth_info_s size */
+#define ETH_INFO_SZ                                                            \
+	(RTE_ALIGN_CEIL(sizeof(struct eth_info_s), sizeof(uint64_t)) /         \
+	 sizeof(uint64_t))
+#define MACADDR_LEN 18
+
+static int
+ethdev_tel_handle_info(const char *cmd __rte_unused,
+		       const char *params __rte_unused, struct rte_tel_data *d)
+{
+	struct rte_eth_dev *eth_dev;
+	struct rte_tel_data *i_data;
+	struct cnxk_eth_dev *dev;
+	union eth_info_u {
+		struct eth_info_s {
+			/** PF/VF information */
+			uint16_t pf_func;
+			uint8_t max_mac_entries;
+			bool dmac_filter_ena;
+			uint8_t dmac_filter_count;
+			uint8_t ptype_disable;
+			bool scalar_ena;
+			bool ptp_ena;
+			/* Platform specific offload flags */
+			uint16_t rx_offload_flags;
+			uint16_t tx_offload_flags;
+		} info;
+		uint64_t val[ETH_INFO_SZ];
+	} eth_info;
+	struct eth_info_s *info;
+	unsigned int i, j = 0;
+	int n_ports;
+
+	n_ports = rte_eth_dev_count_avail();
+	if (!n_ports) {
+		plt_err("No active ethernet ports found.");
+		return -1;
+	}
+
+	rte_tel_data_start_dict(d);
+	rte_tel_data_add_dict_int(d, "n_ports", n_ports);
+
+	i_data = rte_tel_data_alloc();
+	rte_tel_data_start_array(i_data, RTE_TEL_U64_VAL);
+
+	for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
+		/* Skip if port is unused */
+		if (!rte_eth_dev_is_valid_port(i))
+			continue;
+
+		eth_dev = &rte_eth_devices[i];
+		if (eth_dev) {
+			memset(&eth_info, 0, sizeof(eth_info));
+			info = &eth_info.info;
+			dev = cnxk_eth_pmd_priv(eth_dev);
+			if (dev) {
+				info->pf_func = roc_nix_get_pf_func(&dev->nix);
+				info->max_mac_entries = dev->max_mac_entries;
+				info->dmac_filter_ena = dev->dmac_filter_enable;
+				info->dmac_filter_count =
+					dev->dmac_filter_count;
+				info->ptype_disable = dev->ptype_disable;
+				info->scalar_ena = dev->scalar_ena;
+				info->ptp_ena = dev->ptp_en;
+				info->rx_offload_flags = dev->rx_offload_flags;
+				info->tx_offload_flags = dev->tx_offload_flags;
+			}
+
+			for (j = 0; j < ETH_INFO_SZ; j++)
+				rte_tel_data_add_array_u64(i_data,
+							   eth_info.val[j]);
+
+			j++;
+		}
+	}
+
+	rte_tel_data_add_dict_container(d, "info", i_data, 0);
+	return 0;
+}
+
+RTE_INIT(cnxk_ethdev_init_telemetry)
+{
+	rte_telemetry_register_cmd("/cnxk/ethdev/info", ethdev_tel_handle_info,
+				   "Returns ethdev device information");
+}
diff --git a/drivers/net/cnxk/meson.build b/drivers/net/cnxk/meson.build
index d1d4b4e15e..5b3b8422fb 100644
--- a/drivers/net/cnxk/meson.build
+++ b/drivers/net/cnxk/meson.build
@@ -13,6 +13,7 @@ sources = files(
         'cnxk_ethdev_devargs.c',
         'cnxk_ethdev_ops.c',
         'cnxk_ethdev_sec.c',
+        'cnxk_ethdev_telemetry.c',
         'cnxk_link.c',
         'cnxk_lookup.c',
         'cnxk_ptp.c',
-- 
2.25.1