ethdev: add hairpin queue

[dpdk.git] / lib / librte_ethdev / rte_ethdev_driver.h

diff --git a/lib/librte_ethdev/rte_ethdev_driver.h b/lib/librte_ethdev/rte_ethdev_driver.h
index 66274be..99d4cd6 100644 (file)
--- a/lib/librte_ethdev/rte_ethdev_driver.h
+++ b/lib/librte_ethdev/rte_ethdev_driver.h
@@ -21,6 +21,41 @@
 extern "C" {
 #endif
 
+/**
+ * RX/TX queue states
+ */
+#define RTE_ETH_QUEUE_STATE_STOPPED 0
+#define RTE_ETH_QUEUE_STATE_STARTED 1
+#define RTE_ETH_QUEUE_STATE_HAIRPIN 2
+
+/**
+ * @internal
+ * Check if the selected Rx queue is hairpin queue.
+ *
+ * @param dev
+ *  Pointer to the selected device.
+ * @param queue_id
+ *  The selected queue.
+ *
+ * @return
+ *   - (1) if the queue is hairpin queue, 0 otherwise.
+ */
+int rte_eth_dev_is_rx_hairpin_queue(struct rte_eth_dev *dev, uint16_t queue_id);
+
+/**
+ * @internal
+ * Check if the selected Tx queue is hairpin queue.
+ *
+ * @param dev
+ *  Pointer to the selected device.
+ * @param queue_id
+ *  The selected queue.
+ *
+ * @return
+ *   - (1) if the queue is hairpin queue, 0 otherwise.
+ */
+int rte_eth_dev_is_tx_hairpin_queue(struct rte_eth_dev *dev, uint16_t queue_id);
+
 /**
  * @internal
  * Returns a ethdev slot specified by the unique identifier name.
@@ -74,20 +109,6 @@ struct rte_eth_dev *rte_eth_dev_attach_secondary(const char *name);
  */
 int rte_eth_dev_release_port(struct rte_eth_dev *eth_dev);
 
-/**
- * @internal
- * Release the specified ethdev port in the local process.
- * Only set ethdev state to unused, but not reset shared data since
- * it assume other processes is still using it. typically it is
- * called by a secondary process.
- *
- * @param eth_dev
- * Device to be detached.
- * @return
- *   - 0 on success, negative on error
- */
-int rte_eth_dev_release_port_secondary(struct rte_eth_dev *eth_dev);
-
 /**
  * @internal
  * Release device queues and clear its configuration to force the user
@@ -239,7 +260,8 @@ rte_eth_linkstatus_get(const struct rte_eth_dev *dev,
  * @return
  *   Negative errno value on error, 0 on success.
  */
-int __rte_experimental
+__rte_experimental
+int
 rte_eth_switch_domain_alloc(uint16_t *domain_id);
 
 /**
@@ -257,7 +279,8 @@ rte_eth_switch_domain_alloc(uint16_t *domain_id);
  * @return
  *   Negative errno value on error, 0 on success.
  */
-int __rte_experimental
+__rte_experimental
+int
 rte_eth_switch_domain_free(uint16_t domain_id);
 
 /** Generic Ethernet device arguments  */
@@ -286,7 +309,8 @@ struct rte_eth_devargs {
  * @return
  *   Negative errno value on error, 0 on success.
  */
-int __rte_experimental
+__rte_experimental
+int
 rte_eth_devargs_parse(const char *devargs, struct rte_eth_devargs *eth_devargs);
 
 
@@ -318,7 +342,8 @@ typedef int (*ethdev_bus_specific_init)(struct rte_eth_dev *ethdev,
  * @return
  *   Negative errno value on error, 0 on success.
  */
-int __rte_experimental
+__rte_experimental
+int
 rte_eth_dev_create(struct rte_device *device, const char *name,
        size_t priv_data_size,
        ethdev_bus_specific_init bus_specific_init, void *bus_init_params,
@@ -331,7 +356,7 @@ typedef int (*ethdev_uninit_t)(struct rte_eth_dev *ethdev);
  * @warning
  * @b EXPERIMENTAL: this API may change without prior notice.
  *
- * PMD helper function for cleaing up the resources of a ethdev port on it's
+ * PMD helper function for cleaning up the resources of a ethdev port on it's
  * destruction.
  *
  * @param ethdev
@@ -342,7 +367,8 @@ typedef int (*ethdev_uninit_t)(struct rte_eth_dev *ethdev);
  * @return
  *   Negative errno value on error, 0 on success.
  */
-int __rte_experimental
+__rte_experimental
+int
 rte_eth_dev_destroy(struct rte_eth_dev *ethdev, ethdev_uninit_t ethdev_uninit);
 
 #ifdef __cplusplus