Add API for enabling direct rearm mode and for mapping RX and TX queues. Currently, the API supports 1:1(txq : rxq) mapping.
Suggested-by: Honnappa Nagarahalli <[email protected]> Signed-off-by: Feifei Wang <[email protected]> Reviewed-by: Ruifeng Wang <[email protected]> Reviewed-by: Honnappa Nagarahalli <[email protected]> --- lib/ethdev/ethdev_driver.h | 15 +++++++++++++++ lib/ethdev/rte_ethdev.c | 14 ++++++++++++++ lib/ethdev/rte_ethdev.h | 31 +++++++++++++++++++++++++++++++ lib/ethdev/version.map | 1 + 4 files changed, 61 insertions(+) diff --git a/lib/ethdev/ethdev_driver.h b/lib/ethdev/ethdev_driver.h index 69d9dc21d8..22022f6da9 100644 --- a/lib/ethdev/ethdev_driver.h +++ b/lib/ethdev/ethdev_driver.h @@ -485,6 +485,16 @@ typedef int (*eth_rx_enable_intr_t)(struct rte_eth_dev *dev, typedef int (*eth_rx_disable_intr_t)(struct rte_eth_dev *dev, uint16_t rx_queue_id); +/** @internal Enable direct rearm of a receive queue of an Ethernet device. */ +typedef int (*eth_rx_direct_rearm_enable_t)(struct rte_eth_dev *dev, + uint16_t queue_id); + +/**< @internal map Rx/Tx queue of direct rearm mode */ +typedef int (*eth_rx_direct_rearm_map_t)(struct rte_eth_dev *dev, + uint16_t rx_queue_id, + uint16_t tx_port_id, + uint16_t tx_queue_id); + /** @internal Release memory resources allocated by given Rx/Tx queue. */ typedef void (*eth_queue_release_t)(struct rte_eth_dev *dev, uint16_t queue_id); @@ -1152,6 +1162,11 @@ struct eth_dev_ops { /** Disable Rx queue interrupt */ eth_rx_disable_intr_t rx_queue_intr_disable; + /** Enable Rx queue direct rearm mode */ + eth_rx_direct_rearm_enable_t rx_queue_direct_rearm_enable; + /** Map Rx/Tx queue for direct rearm mode */ + eth_rx_direct_rearm_map_t rx_queue_direct_rearm_map; + eth_tx_queue_setup_t tx_queue_setup;/**< Set up device Tx queue */ eth_queue_release_t tx_queue_release; /**< Release Tx queue */ eth_tx_done_cleanup_t tx_done_cleanup;/**< Free Tx ring mbufs */ diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c index 29a3d80466..8e6f0284f4 100644 --- a/lib/ethdev/rte_ethdev.c +++ b/lib/ethdev/rte_ethdev.c @@ -2139,6 +2139,20 @@ rte_eth_tx_hairpin_queue_setup(uint16_t port_id, uint16_t tx_queue_id, return eth_err(port_id, ret); } +int +rte_eth_direct_rxrearm_map(uint16_t rx_port_id, uint16_t rx_queue_id, + uint16_t tx_port_id, uint16_t tx_queue_id) +{ + struct rte_eth_dev *dev; + + dev = &rte_eth_devices[rx_port_id]; + (*dev->dev_ops->rx_queue_direct_rearm_enable)(dev, rx_queue_id); + (*dev->dev_ops->rx_queue_direct_rearm_map)(dev, rx_queue_id, + tx_port_id, tx_queue_id); + + return 0; +} + int rte_eth_hairpin_bind(uint16_t tx_port, uint16_t rx_port) { diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h index 04cff8ee10..4a431fcbed 100644 --- a/lib/ethdev/rte_ethdev.h +++ b/lib/ethdev/rte_ethdev.h @@ -5190,6 +5190,37 @@ __rte_experimental int rte_eth_dev_hairpin_capability_get(uint16_t port_id, struct rte_eth_hairpin_cap *cap); +/** + * @warning + * @b EXPERIMENTAL: this API may change, or be removed, without prior notice + * + * Enable direct re-arm mode. In this mode the RX queue will be re-armed using + * buffers that have completed transmission on the transmit side. + * + * @note + * It is assumed that the buffers have completed transmission belong to the + * mempool used at the receive side, and have refcnt = 1. + * + * @param rx_port_id + * Port identifying the receive side. + * @param rx_queue_id + * The index of the receive queue identifying the receive side. + * The value must be in the range [0, nb_rx_queue - 1] previously supplied + * to rte_eth_dev_configure(). + * @param tx_port_id + * Port identifying the transmit side. + * @param tx_queue_id + * The index of the transmit queue identifying the transmit side. + * The value must be in the range [0, nb_tx_queue - 1] previously supplied + * to rte_eth_dev_configure(). + * + * @return + * - (0) if successful. + */ +__rte_experimental +int rte_eth_direct_rxrearm_map(uint16_t rx_port_id, uint16_t rx_queue_id, + uint16_t tx_port_id, uint16_t tx_queue_id); + /** * @warning * @b EXPERIMENTAL: this structure may change without prior notice. diff --git a/lib/ethdev/version.map b/lib/ethdev/version.map index 20391ab29e..68d664498c 100644 --- a/lib/ethdev/version.map +++ b/lib/ethdev/version.map @@ -279,6 +279,7 @@ EXPERIMENTAL { rte_flow_async_action_handle_create; rte_flow_async_action_handle_destroy; rte_flow_async_action_handle_update; + rte_eth_direct_rxrearm_map; }; INTERNAL { -- 2.25.1
