devargs: restore device type API

[dpdk.git] / lib / librte_ether / rte_ethdev.h

diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 224f485..55fda95 100644 (file)
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -925,6 +925,10 @@ struct rte_eth_conf {
 #define DEV_TX_OFFLOAD_IPIP_TNL_TSO     0x00000800    /**< Used for tunneling packet. */
 #define DEV_TX_OFFLOAD_GENEVE_TNL_TSO   0x00001000    /**< Used for tunneling packet. */
 #define DEV_TX_OFFLOAD_MACSEC_INSERT    0x00002000
+#define DEV_TX_OFFLOAD_MT_LOCKFREE      0x00004000
+/**< Multiple threads can invoke rte_eth_tx_burst() concurrently on the same
+ * tx queue without SW lock.
+ */
 
 struct rte_pci_device;
 
@@ -2965,6 +2969,10 @@ static inline int rte_eth_tx_descriptor_status(uint8_t port_id,
  * rte_eth_tx_burst() function must [attempt to] free the *rte_mbuf*  buffers
  * of those packets whose transmission was effectively completed.
  *
+ * If the PMD is DEV_TX_OFFLOAD_MT_LOCKFREE capable, multiple threads can
+ * invoke this function concurrently on the same tx queue without SW lock.
+ * @see rte_eth_dev_info_get, struct rte_eth_txconf::txq_flags
+ *
  * @param port_id
  *   The port identifier of the Ethernet device.
  * @param queue_id