[dpdk-dev] [PATCH v13 2/7] ethdev: get device capability name as string

[Xueming Li <xuemingl@nvidia.com>]

This patch adds API to return name of device capability.

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
---
 lib/ethdev/rte_ethdev.c | 25 +++++++++++++++++++++++++
 lib/ethdev/rte_ethdev.h | 14 ++++++++++++++
 lib/ethdev/version.map  |  1 +
 3 files changed, 40 insertions(+)

diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index 31a9cba065b..bfe5b0adbef 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c
@@ -167,6 +167,15 @@ static const struct {
 
 #undef RTE_TX_OFFLOAD_BIT2STR
 
+static const struct {
+	uint64_t offload;
+	const char *name;
+} rte_eth_dev_capa_names[] = {
+	{RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP, "RUNTIME_RX_QUEUE_SETUP"},
+	{RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP, "RUNTIME_TX_QUEUE_SETUP"},
+	{RTE_ETH_DEV_CAPA_RXQ_SHARE, "RXQ_SHARE"},
+};
+
 /**
  * The user application callback description.
  *
@@ -1236,6 +1245,22 @@ rte_eth_dev_tx_offload_name(uint64_t offload)
 	return name;
 }
 
+const char *
+rte_eth_dev_capability_name(uint64_t capability)
+{
+	const char *name = "UNKNOWN";
+	unsigned int i;
+
+	for (i = 0; i < RTE_DIM(rte_eth_dev_capa_names); ++i) {
+		if (capability == rte_eth_dev_capa_names[i].offload) {
+			name = rte_eth_dev_capa_names[i].name;
+			break;
+		}
+	}
+
+	return name;
+}
+
 static inline int
 eth_dev_check_lro_pkt_size(uint16_t port_id, uint32_t config_size,
 		   uint32_t max_rx_pkt_len, uint32_t dev_info_size)
diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h
index 40f88cc3d64..9baca39e97a 100644
--- a/lib/ethdev/rte_ethdev.h
+++ b/lib/ethdev/rte_ethdev.h
@@ -2109,6 +2109,20 @@ const char *rte_eth_dev_rx_offload_name(uint64_t offload);
  */
 const char *rte_eth_dev_tx_offload_name(uint64_t offload);
 
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Get RTE_ETH_DEV_CAPA_* flag name.
+ *
+ * @param capability
+ *   Capability flag.
+ * @return
+ *   Capability name or 'UNKNOWN' if the flag cannot be recognized.
+ */
+__rte_experimental
+const char *rte_eth_dev_capability_name(uint64_t capability);
+
 /**
  * Configure an Ethernet device.
  * This function must be invoked first before any other function in the
diff --git a/lib/ethdev/version.map b/lib/ethdev/version.map
index d552c955c94..e1abe997290 100644
--- a/lib/ethdev/version.map
+++ b/lib/ethdev/version.map
@@ -249,6 +249,7 @@ EXPERIMENTAL {
 	rte_mtr_meter_policy_validate;
 
 	# added in 21.11
+	rte_eth_dev_capability_name;
 	rte_eth_dev_conf_get;
 	rte_eth_macaddrs_get;
 	rte_eth_rx_metadata_negotiate;
-- 
2.33.0