diff options
Diffstat (limited to 'lib/librte_ether/rte_ethdev.h')
| -rw-r--r-- | lib/librte_ether/rte_ethdev.h | 2131 |
1 files changed, 815 insertions, 1316 deletions
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index 341c2d62..03615330 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -1,34 +1,5 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2017 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2017 Intel Corporation */ #ifndef _RTE_ETHDEV_H_ @@ -46,10 +17,10 @@ * to get its MAC address, the speed and the status of its physical link, * to receive and to transmit packets, and so on. * - * - The driver-oriented Ethernet API that exports a function allowing - * an Ethernet Poll Mode Driver (PMD) to simultaneously register itself as - * an Ethernet device driver and as a PCI driver for a set of matching PCI - * [Ethernet] devices classes. + * - The driver-oriented Ethernet API that exports functions allowing + * an Ethernet Poll Mode Driver (PMD) to allocate an Ethernet device instance, + * create memzone for HW rings and process registered callbacks, and so on. + * PMDs should include rte_ethdev_driver.h instead of this header. * * By default, all the functions of the Ethernet Device API exported by a PMD * are lock-free functions which assume to not be invoked in parallel on @@ -175,12 +146,14 @@ extern "C" { /* Use this macro to check if LRO API is supported */ #define RTE_ETHDEV_HAS_LRO_SUPPORT +#include <rte_compat.h> #include <rte_log.h> #include <rte_interrupts.h> #include <rte_dev.h> #include <rte_devargs.h> #include <rte_errno.h> #include <rte_common.h> +#include <rte_config.h> #include "rte_ether.h" #include "rte_eth_ctrl.h" @@ -262,17 +235,17 @@ __extension__ struct rte_eth_link { uint32_t link_speed; /**< ETH_SPEED_NUM_ */ uint16_t link_duplex : 1; /**< ETH_LINK_[HALF/FULL]_DUPLEX */ - uint16_t link_autoneg : 1; /**< ETH_LINK_SPEED_[AUTONEG/FIXED] */ + uint16_t link_autoneg : 1; /**< ETH_LINK_[AUTONEG/FIXED] */ uint16_t link_status : 1; /**< ETH_LINK_[DOWN/UP] */ } __attribute__((aligned(8))); /**< aligned for atomic64 read/write */ /* Utility constants */ -#define ETH_LINK_HALF_DUPLEX 0 /**< Half-duplex connection. */ -#define ETH_LINK_FULL_DUPLEX 1 /**< Full-duplex connection. */ -#define ETH_LINK_DOWN 0 /**< Link is down. */ -#define ETH_LINK_UP 1 /**< Link is up. */ -#define ETH_LINK_FIXED 0 /**< No autonegotiation. */ -#define ETH_LINK_AUTONEG 1 /**< Autonegotiated. */ +#define ETH_LINK_HALF_DUPLEX 0 /**< Half-duplex connection (see link_duplex). */ +#define ETH_LINK_FULL_DUPLEX 1 /**< Full-duplex connection (see link_duplex). */ +#define ETH_LINK_DOWN 0 /**< Link is down (see link_status). */ +#define ETH_LINK_UP 1 /**< Link is up (see link_status). */ +#define ETH_LINK_FIXED 0 /**< No autonegotiation (see link_autoneg). */ +#define ETH_LINK_AUTONEG 1 /**< Autonegotiated (see link_autoneg). */ /** * A structure used to configure the ring threshold registers of an RX/TX @@ -482,7 +455,6 @@ struct rte_eth_rss_conf { ETH_RSS_GENEVE | \ ETH_RSS_NVGRE) - /**< Mask of valid RSS hash protocols */ #define ETH_RSS_PROTO_MASK ( \ ETH_RSS_IPV4 | \ @@ -974,6 +946,11 @@ struct rte_eth_conf { DEV_RX_OFFLOAD_VLAN_FILTER | \ DEV_RX_OFFLOAD_VLAN_EXTEND) +/* + * If new Rx offload capabilities are defined, they also must be + * mentioned in rte_rx_offload_names in rte_ethdev.c file. + */ + /** * TX offload capabilities of a device. */ @@ -1004,6 +981,11 @@ struct rte_eth_conf { */ #define DEV_TX_OFFLOAD_SECURITY 0x00020000 +/* + * If new Tx offload capabilities are defined, they also must be + * mentioned in rte_tx_offload_names in rte_ethdev.c file. + */ + struct rte_pci_device; /** @@ -1137,9 +1119,7 @@ struct rte_eth_dcb_info { struct rte_eth_dev; -struct rte_eth_dev_callback; -/** @internal Structure to keep track of registered callbacks */ -TAILQ_HEAD(rte_eth_dev_cb_list, rte_eth_dev_callback); +#define RTE_ETH_ALL RTE_MAX_ETHPORTS /* Macros to check for valid port */ #define RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, retval) do { \ @@ -1169,485 +1149,13 @@ TAILQ_HEAD(rte_eth_dev_cb_list, rte_eth_dev_callback); /**< l2 tunnel forwarding mask */ #define ETH_L2_TUNNEL_FORWARDING_MASK 0x00000008 -/* - * Definitions of all functions exported by an Ethernet driver through the - * the generic structure of type *eth_dev_ops* supplied in the *rte_eth_dev* - * structure associated with an Ethernet device. - */ - -typedef int (*eth_dev_configure_t)(struct rte_eth_dev *dev); -/**< @internal Ethernet device configuration. */ - -typedef int (*eth_dev_start_t)(struct rte_eth_dev *dev); -/**< @internal Function used to start a configured Ethernet device. */ - -typedef void (*eth_dev_stop_t)(struct rte_eth_dev *dev); -/**< @internal Function used to stop a configured Ethernet device. */ - -typedef int (*eth_dev_set_link_up_t)(struct rte_eth_dev *dev); -/**< @internal Function used to link up a configured Ethernet device. */ - -typedef int (*eth_dev_set_link_down_t)(struct rte_eth_dev *dev); -/**< @internal Function used to link down a configured Ethernet device. */ - -typedef void (*eth_dev_close_t)(struct rte_eth_dev *dev); -/**< @internal Function used to close a configured Ethernet device. */ - -typedef int (*eth_dev_reset_t)(struct rte_eth_dev *dev); -/** <@internal Function used to reset a configured Ethernet device. */ - -typedef void (*eth_promiscuous_enable_t)(struct rte_eth_dev *dev); -/**< @internal Function used to enable the RX promiscuous mode of an Ethernet device. */ - -typedef void (*eth_promiscuous_disable_t)(struct rte_eth_dev *dev); -/**< @internal Function used to disable the RX promiscuous mode of an Ethernet device. */ - -typedef void (*eth_allmulticast_enable_t)(struct rte_eth_dev *dev); -/**< @internal Enable the receipt of all multicast packets by an Ethernet device. */ - -typedef void (*eth_allmulticast_disable_t)(struct rte_eth_dev *dev); -/**< @internal Disable the receipt of all multicast packets by an Ethernet device. */ - -typedef int (*eth_link_update_t)(struct rte_eth_dev *dev, - int wait_to_complete); -/**< @internal Get link speed, duplex mode and state (up/down) of an Ethernet device. */ - -typedef int (*eth_stats_get_t)(struct rte_eth_dev *dev, - struct rte_eth_stats *igb_stats); -/**< @internal Get global I/O statistics of an Ethernet device. */ - -typedef void (*eth_stats_reset_t)(struct rte_eth_dev *dev); -/**< @internal Reset global I/O statistics of an Ethernet device to 0. */ - -typedef int (*eth_xstats_get_t)(struct rte_eth_dev *dev, - struct rte_eth_xstat *stats, unsigned n); -/**< @internal Get extended stats of an Ethernet device. */ - -typedef int (*eth_xstats_get_by_id_t)(struct rte_eth_dev *dev, - const uint64_t *ids, - uint64_t *values, - unsigned int n); -/**< @internal Get extended stats of an Ethernet device. */ - -typedef void (*eth_xstats_reset_t)(struct rte_eth_dev *dev); -/**< @internal Reset extended stats of an Ethernet device. */ - -typedef int (*eth_xstats_get_names_t)(struct rte_eth_dev *dev, - struct rte_eth_xstat_name *xstats_names, unsigned size); -/**< @internal Get names of extended stats of an Ethernet device. */ - -typedef int (*eth_xstats_get_names_by_id_t)(struct rte_eth_dev *dev, - struct rte_eth_xstat_name *xstats_names, const uint64_t *ids, - unsigned int size); -/**< @internal Get names of extended stats of an Ethernet device. */ - -typedef int (*eth_queue_stats_mapping_set_t)(struct rte_eth_dev *dev, - uint16_t queue_id, - uint8_t stat_idx, - uint8_t is_rx); -/**< @internal Set a queue statistics mapping for a tx/rx queue of an Ethernet device. */ - -typedef void (*eth_dev_infos_get_t)(struct rte_eth_dev *dev, - struct rte_eth_dev_info *dev_info); -/**< @internal Get specific informations of an Ethernet device. */ - -typedef const uint32_t *(*eth_dev_supported_ptypes_get_t)(struct rte_eth_dev *dev); -/**< @internal Get supported ptypes of an Ethernet device. */ - -typedef int (*eth_queue_start_t)(struct rte_eth_dev *dev, - uint16_t queue_id); -/**< @internal Start rx and tx of a queue of an Ethernet device. */ - -typedef int (*eth_queue_stop_t)(struct rte_eth_dev *dev, - uint16_t queue_id); -/**< @internal Stop rx and tx of a queue of an Ethernet device. */ - -typedef int (*eth_rx_queue_setup_t)(struct rte_eth_dev *dev, - uint16_t rx_queue_id, - uint16_t nb_rx_desc, - unsigned int socket_id, - const struct rte_eth_rxconf *rx_conf, - struct rte_mempool *mb_pool); -/**< @internal Set up a receive queue of an Ethernet device. */ - -typedef int (*eth_tx_queue_setup_t)(struct rte_eth_dev *dev, - uint16_t tx_queue_id, - uint16_t nb_tx_desc, - unsigned int socket_id, - const struct rte_eth_txconf *tx_conf); -/**< @internal Setup a transmit queue of an Ethernet device. */ - -typedef int (*eth_rx_enable_intr_t)(struct rte_eth_dev *dev, - uint16_t rx_queue_id); -/**< @internal Enable interrupt of a receive queue of an Ethernet device. */ - -typedef int (*eth_rx_disable_intr_t)(struct rte_eth_dev *dev, - uint16_t rx_queue_id); -/**< @internal Disable interrupt of a receive queue of an Ethernet device. */ - -typedef void (*eth_queue_release_t)(void *queue); -/**< @internal Release memory resources allocated by given RX/TX queue. */ - -typedef uint32_t (*eth_rx_queue_count_t)(struct rte_eth_dev *dev, - uint16_t rx_queue_id); -/**< @internal Get number of used descriptors on a receive queue. */ - -typedef int (*eth_rx_descriptor_done_t)(void *rxq, uint16_t offset); -/**< @internal Check DD bit of specific RX descriptor */ - -typedef int (*eth_rx_descriptor_status_t)(void *rxq, uint16_t offset); -/**< @internal Check the status of a Rx descriptor */ - -typedef int (*eth_tx_descriptor_status_t)(void *txq, uint16_t offset); -/**< @internal Check the status of a Tx descriptor */ - -typedef int (*eth_fw_version_get_t)(struct rte_eth_dev *dev, - char *fw_version, size_t fw_size); -/**< @internal Get firmware information of an Ethernet device. */ - -typedef int (*eth_tx_done_cleanup_t)(void *txq, uint32_t free_cnt); -/**< @internal Force mbufs to be from TX ring. */ - -typedef void (*eth_rxq_info_get_t)(struct rte_eth_dev *dev, - uint16_t rx_queue_id, struct rte_eth_rxq_info *qinfo); - -typedef void (*eth_txq_info_get_t)(struct rte_eth_dev *dev, - uint16_t tx_queue_id, struct rte_eth_txq_info *qinfo); - -typedef int (*mtu_set_t)(struct rte_eth_dev *dev, uint16_t mtu); -/**< @internal Set MTU. */ - -typedef int (*vlan_filter_set_t)(struct rte_eth_dev *dev, - uint16_t vlan_id, - int on); -/**< @internal filtering of a VLAN Tag Identifier by an Ethernet device. */ - -typedef int (*vlan_tpid_set_t)(struct rte_eth_dev *dev, - enum rte_vlan_type type, uint16_t tpid); -/**< @internal set the outer/inner VLAN-TPID by an Ethernet device. */ - -typedef int (*vlan_offload_set_t)(struct rte_eth_dev *dev, int mask); -/**< @internal set VLAN offload function by an Ethernet device. */ - -typedef int (*vlan_pvid_set_t)(struct rte_eth_dev *dev, - uint16_t vlan_id, - int on); -/**< @internal set port based TX VLAN insertion by an Ethernet device. */ - -typedef void (*vlan_strip_queue_set_t)(struct rte_eth_dev *dev, - uint16_t rx_queue_id, - int on); -/**< @internal VLAN stripping enable/disable by an queue of Ethernet device. */ - -typedef uint16_t (*eth_rx_burst_t)(void *rxq, - struct rte_mbuf **rx_pkts, - uint16_t nb_pkts); -/**< @internal Retrieve input packets from a receive queue of an Ethernet device. */ - -typedef uint16_t (*eth_tx_burst_t)(void *txq, - struct rte_mbuf **tx_pkts, - uint16_t nb_pkts); -/**< @internal Send output packets on a transmit queue of an Ethernet device. */ - -typedef uint16_t (*eth_tx_prep_t)(void *txq, - struct rte_mbuf **tx_pkts, - uint16_t nb_pkts); -/**< @internal Prepare output packets on a transmit queue of an Ethernet device. */ - -typedef int (*flow_ctrl_get_t)(struct rte_eth_dev *dev, - struct rte_eth_fc_conf *fc_conf); -/**< @internal Get current flow control parameter on an Ethernet device */ - -typedef int (*flow_ctrl_set_t)(struct rte_eth_dev *dev, - struct rte_eth_fc_conf *fc_conf); -/**< @internal Setup flow control parameter on an Ethernet device */ - -typedef int (*priority_flow_ctrl_set_t)(struct rte_eth_dev *dev, - struct rte_eth_pfc_conf *pfc_conf); -/**< @internal Setup priority flow control parameter on an Ethernet device */ - -typedef int (*reta_update_t)(struct rte_eth_dev *dev, - struct rte_eth_rss_reta_entry64 *reta_conf, - uint16_t reta_size); -/**< @internal Update RSS redirection table on an Ethernet device */ - -typedef int (*reta_query_t)(struct rte_eth_dev *dev, - struct rte_eth_rss_reta_entry64 *reta_conf, - uint16_t reta_size); -/**< @internal Query RSS redirection table on an Ethernet device */ - -typedef int (*rss_hash_update_t)(struct rte_eth_dev *dev, - struct rte_eth_rss_conf *rss_conf); -/**< @internal Update RSS hash configuration of an Ethernet device */ - -typedef int (*rss_hash_conf_get_t)(struct rte_eth_dev *dev, - struct rte_eth_rss_conf *rss_conf); -/**< @internal Get current RSS hash configuration of an Ethernet device */ - -typedef int (*eth_dev_led_on_t)(struct rte_eth_dev *dev); -/**< @internal Turn on SW controllable LED on an Ethernet device */ - -typedef int (*eth_dev_led_off_t)(struct rte_eth_dev *dev); -/**< @internal Turn off SW controllable LED on an Ethernet device */ - -typedef void (*eth_mac_addr_remove_t)(struct rte_eth_dev *dev, uint32_t index); -/**< @internal Remove MAC address from receive address register */ - -typedef int (*eth_mac_addr_add_t)(struct rte_eth_dev *dev, - struct ether_addr *mac_addr, - uint32_t index, - uint32_t vmdq); -/**< @internal Set a MAC address into Receive Address Address Register */ - -typedef void (*eth_mac_addr_set_t)(struct rte_eth_dev *dev, - struct ether_addr *mac_addr); -/**< @internal Set a MAC address into Receive Address Address Register */ - -typedef int (*eth_uc_hash_table_set_t)(struct rte_eth_dev *dev, - struct ether_addr *mac_addr, - uint8_t on); -/**< @internal Set a Unicast Hash bitmap */ - -typedef int (*eth_uc_all_hash_table_set_t)(struct rte_eth_dev *dev, - uint8_t on); -/**< @internal Set all Unicast Hash bitmap */ - -typedef int (*eth_set_queue_rate_limit_t)(struct rte_eth_dev *dev, - uint16_t queue_idx, - uint16_t tx_rate); -/**< @internal Set queue TX rate */ - -typedef int (*eth_mirror_rule_set_t)(struct rte_eth_dev *dev, - struct rte_eth_mirror_conf *mirror_conf, - uint8_t rule_id, - uint8_t on); -/**< @internal Add a traffic mirroring rule on an Ethernet device */ - -typedef int (*eth_mirror_rule_reset_t)(struct rte_eth_dev *dev, - uint8_t rule_id); -/**< @internal Remove a traffic mirroring rule on an Ethernet device */ - -typedef int (*eth_udp_tunnel_port_add_t)(struct rte_eth_dev *dev, - struct rte_eth_udp_tunnel *tunnel_udp); -/**< @internal Add tunneling UDP port */ - -typedef int (*eth_udp_tunnel_port_del_t)(struct rte_eth_dev *dev, - struct rte_eth_udp_tunnel *tunnel_udp); -/**< @internal Delete tunneling UDP port */ - -typedef int (*eth_set_mc_addr_list_t)(struct rte_eth_dev *dev, - struct ether_addr *mc_addr_set, - uint32_t nb_mc_addr); -/**< @internal set the list of multicast addresses on an Ethernet device */ - -typedef int (*eth_timesync_enable_t)(struct rte_eth_dev *dev); -/**< @internal Function used to enable IEEE1588/802.1AS timestamping. */ - -typedef int (*eth_timesync_disable_t)(struct rte_eth_dev *dev); -/**< @internal Function used to disable IEEE1588/802.1AS timestamping. */ - -typedef int (*eth_timesync_read_rx_timestamp_t)(struct rte_eth_dev *dev, - struct timespec *timestamp, - uint32_t flags); -/**< @internal Function used to read an RX IEEE1588/802.1AS timestamp. */ - -typedef int (*eth_timesync_read_tx_timestamp_t)(struct rte_eth_dev *dev, - struct timespec *timestamp); -/**< @internal Function used to read a TX IEEE1588/802.1AS timestamp. */ - -typedef int (*eth_timesync_adjust_time)(struct rte_eth_dev *dev, int64_t); -/**< @internal Function used to adjust the device clock */ - -typedef int (*eth_timesync_read_time)(struct rte_eth_dev *dev, - struct timespec *timestamp); -/**< @internal Function used to get time from the device clock. */ - -typedef int (*eth_timesync_write_time)(struct rte_eth_dev *dev, - const struct timespec *timestamp); -/**< @internal Function used to get time from the device clock */ - -typedef int (*eth_get_reg_t)(struct rte_eth_dev *dev, - struct rte_dev_reg_info *info); -/**< @internal Retrieve registers */ - -typedef int (*eth_get_eeprom_length_t)(struct rte_eth_dev *dev); -/**< @internal Retrieve eeprom size */ - -typedef int (*eth_get_eeprom_t)(struct rte_eth_dev *dev, - struct rte_dev_eeprom_info *info); -/**< @internal Retrieve eeprom data */ - -typedef int (*eth_set_eeprom_t)(struct rte_eth_dev *dev, - struct rte_dev_eeprom_info *info); -/**< @internal Program eeprom data */ - -typedef int (*eth_l2_tunnel_eth_type_conf_t) - (struct rte_eth_dev *dev, struct rte_eth_l2_tunnel_conf *l2_tunnel); -/**< @internal config l2 tunnel ether type */ - -typedef int (*eth_l2_tunnel_offload_set_t) - (struct rte_eth_dev *dev, - struct rte_eth_l2_tunnel_conf *l2_tunnel, - uint32_t mask, - uint8_t en); -/**< @internal enable/disable the l2 tunnel offload functions */ - - -typedef int (*eth_filter_ctrl_t)(struct rte_eth_dev *dev, - enum rte_filter_type filter_type, - enum rte_filter_op filter_op, - void *arg); -/**< @internal Take operations to assigned filter type on an Ethernet device */ - -typedef int (*eth_tm_ops_get_t)(struct rte_eth_dev *dev, void *ops); -/**< @internal Get Traffic Management (TM) operations on an Ethernet device */ - -typedef int (*eth_mtr_ops_get_t)(struct rte_eth_dev *dev, void *ops); -/**< @internal Get Trafffic Metering and Policing (MTR) operations */ - -typedef int (*eth_get_dcb_info)(struct rte_eth_dev *dev, - struct rte_eth_dcb_info *dcb_info); -/**< @internal Get dcb information on an Ethernet device */ - -typedef int (*eth_pool_ops_supported_t)(struct rte_eth_dev *dev, - const char *pool); -/**< @internal Test if a port supports specific mempool ops */ - -/** - * @internal A structure containing the functions exported by an Ethernet driver. - */ -struct eth_dev_ops { - eth_dev_configure_t dev_configure; /**< Configure device. */ - eth_dev_start_t dev_start; /**< Start device. */ - eth_dev_stop_t dev_stop; /**< Stop device. */ - eth_dev_set_link_up_t dev_set_link_up; /**< Device link up. */ - eth_dev_set_link_down_t dev_set_link_down; /**< Device link down. */ - eth_dev_close_t dev_close; /**< Close device. */ - eth_dev_reset_t dev_reset; /**< Reset device. */ - eth_link_update_t link_update; /**< Get device link state. */ - - eth_promiscuous_enable_t promiscuous_enable; /**< Promiscuous ON. */ - eth_promiscuous_disable_t promiscuous_disable;/**< Promiscuous OFF. */ - eth_allmulticast_enable_t allmulticast_enable;/**< RX multicast ON. */ - eth_allmulticast_disable_t allmulticast_disable;/**< RX multicast OFF. */ - eth_mac_addr_remove_t mac_addr_remove; /**< Remove MAC address. */ - eth_mac_addr_add_t mac_addr_add; /**< Add a MAC address. */ - eth_mac_addr_set_t mac_addr_set; /**< Set a MAC address. */ - eth_set_mc_addr_list_t set_mc_addr_list; /**< set list of mcast addrs. */ - mtu_set_t mtu_set; /**< Set MTU. */ - - eth_stats_get_t stats_get; /**< Get generic device statistics. */ - eth_stats_reset_t stats_reset; /**< Reset generic device statistics. */ - eth_xstats_get_t xstats_get; /**< Get extended device statistics. */ - eth_xstats_reset_t xstats_reset; /**< Reset extended device statistics. */ - eth_xstats_get_names_t xstats_get_names; - /**< Get names of extended statistics. */ - eth_queue_stats_mapping_set_t queue_stats_mapping_set; - /**< Configure per queue stat counter mapping. */ - - eth_dev_infos_get_t dev_infos_get; /**< Get device info. */ - eth_rxq_info_get_t rxq_info_get; /**< retrieve RX queue information. */ - eth_txq_info_get_t txq_info_get; /**< retrieve TX queue information. */ - eth_fw_version_get_t fw_version_get; /**< Get firmware version. */ - eth_dev_supported_ptypes_get_t dev_supported_ptypes_get; - /**< Get packet types supported and identified by device. */ - - vlan_filter_set_t vlan_filter_set; /**< Filter VLAN Setup. */ - vlan_tpid_set_t vlan_tpid_set; /**< Outer/Inner VLAN TPID Setup. */ - vlan_strip_queue_set_t vlan_strip_queue_set; /**< VLAN Stripping on queue. */ - vlan_offload_set_t vlan_offload_set; /**< Set VLAN Offload. */ - vlan_pvid_set_t vlan_pvid_set; /**< Set port based TX VLAN insertion. */ - - eth_queue_start_t rx_queue_start;/**< Start RX for a queue. */ - eth_queue_stop_t rx_queue_stop; /**< Stop RX for a queue. */ - eth_queue_start_t tx_queue_start;/**< Start TX for a queue. */ - eth_queue_stop_t tx_queue_stop; /**< Stop TX for a queue. */ - eth_rx_queue_setup_t rx_queue_setup;/**< Set up device RX queue. */ - eth_queue_release_t rx_queue_release; /**< Release RX queue. */ - eth_rx_queue_count_t rx_queue_count; - /**< Get the number of used RX descriptors. */ - eth_rx_descriptor_done_t rx_descriptor_done; /**< Check rxd DD bit. */ - eth_rx_descriptor_status_t rx_descriptor_status; - /**< Check the status of a Rx descriptor. */ - eth_tx_descriptor_status_t tx_descriptor_status; - /**< Check the status of a Tx descriptor. */ - eth_rx_enable_intr_t rx_queue_intr_enable; /**< Enable Rx queue interrupt. */ - eth_rx_disable_intr_t rx_queue_intr_disable; /**< Disable Rx queue interrupt. */ - 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 */ - - eth_dev_led_on_t dev_led_on; /**< Turn on LED. */ - eth_dev_led_off_t dev_led_off; /**< Turn off LED. */ - - flow_ctrl_get_t flow_ctrl_get; /**< Get flow control. */ - flow_ctrl_set_t flow_ctrl_set; /**< Setup flow control. */ - priority_flow_ctrl_set_t priority_flow_ctrl_set; /**< Setup priority flow control. */ - - eth_uc_hash_table_set_t uc_hash_table_set; /**< Set Unicast Table Array. */ - eth_uc_all_hash_table_set_t uc_all_hash_table_set; /**< Set Unicast hash bitmap. */ - - eth_mirror_rule_set_t mirror_rule_set; /**< Add a traffic mirror rule. */ - eth_mirror_rule_reset_t mirror_rule_reset; /**< reset a traffic mirror rule. */ - - eth_udp_tunnel_port_add_t udp_tunnel_port_add; /** Add UDP tunnel port. */ - eth_udp_tunnel_port_del_t udp_tunnel_port_del; /** Del UDP tunnel port. */ - eth_l2_tunnel_eth_type_conf_t l2_tunnel_eth_type_conf; - /** Config ether type of l2 tunnel. */ - eth_l2_tunnel_offload_set_t l2_tunnel_offload_set; - /** Enable/disable l2 tunnel offload functions. */ - - eth_set_queue_rate_limit_t set_queue_rate_limit; /**< Set queue rate limit. */ - - rss_hash_update_t rss_hash_update; /** Configure RSS hash protocols. */ - rss_hash_conf_get_t rss_hash_conf_get; /** Get current RSS hash configuration. */ - reta_update_t reta_update; /** Update redirection table. */ - reta_query_t reta_query; /** Query redirection table. */ - - eth_get_reg_t get_reg; /**< Get registers. */ - eth_get_eeprom_length_t get_eeprom_length; /**< Get eeprom length. */ - eth_get_eeprom_t get_eeprom; /**< Get eeprom data. */ - eth_set_eeprom_t set_eeprom; /**< Set eeprom. */ - - - eth_filter_ctrl_t filter_ctrl; /**< common filter control. */ - - eth_get_dcb_info get_dcb_info; /** Get DCB information. */ - - eth_timesync_enable_t timesync_enable; - /** Turn IEEE1588/802.1AS timestamping on. */ - eth_timesync_disable_t timesync_disable; - /** Turn IEEE1588/802.1AS timestamping off. */ - eth_timesync_read_rx_timestamp_t timesync_read_rx_timestamp; - /** Read the IEEE1588/802.1AS RX timestamp. */ - eth_timesync_read_tx_timestamp_t timesync_read_tx_timestamp; - /** Read the IEEE1588/802.1AS TX timestamp. */ - eth_timesync_adjust_time timesync_adjust_time; /** Adjust the device clock. */ - eth_timesync_read_time timesync_read_time; /** Get the device clock time. */ - eth_timesync_write_time timesync_write_time; /** Set the device clock time. */ - - eth_xstats_get_by_id_t xstats_get_by_id; - /**< Get extended device statistic values by ID. */ - eth_xstats_get_names_by_id_t xstats_get_names_by_id; - /**< Get name of extended device statistics by ID. */ - - eth_tm_ops_get_t tm_ops_get; - /**< Get Traffic Management (TM) operations. */ - - eth_mtr_ops_get_t mtr_ops_get; - /**< Get Traffic Metering and Policing (MTR) operations. */ - - eth_pool_ops_supported_t pool_ops_supported; - /**< Test if a port supports specific mempool ops */ -}; - /** * Function type used for RX packet processing packet callbacks. * * The callback function is called on RX with a burst of packets that have * been received on the given port and queue. * - * @param port + * @param port_id * The Ethernet port on which RX is being performed. * @param queue * The queue on the Ethernet port which is being used to receive the packets. @@ -1663,7 +1171,7 @@ struct eth_dev_ops { * @return * The number of packets returned to the user. */ -typedef uint16_t (*rte_rx_callback_fn)(uint16_t port, uint16_t queue, +typedef uint16_t (*rte_rx_callback_fn)(uint16_t port_id, uint16_t queue, struct rte_mbuf *pkts[], uint16_t nb_pkts, uint16_t max_pkts, void *user_param); @@ -1673,7 +1181,7 @@ typedef uint16_t (*rte_rx_callback_fn)(uint16_t port, uint16_t queue, * The callback function is called on TX with a burst of packets immediately * before the packets are put onto the hardware queue for transmission. * - * @param port + * @param port_id * The Ethernet port on which TX is being performed. * @param queue * The queue on the Ethernet port which is being used to transmit the packets. @@ -1687,69 +1195,19 @@ typedef uint16_t (*rte_rx_callback_fn)(uint16_t port, uint16_t queue, * @return * The number of packets to be written to the NIC. */ -typedef uint16_t (*rte_tx_callback_fn)(uint16_t port, uint16_t queue, +typedef uint16_t (*rte_tx_callback_fn)(uint16_t port_id, uint16_t queue, struct rte_mbuf *pkts[], uint16_t nb_pkts, void *user_param); /** - * @internal - * Structure used to hold information about the callbacks to be called for a - * queue on RX and TX. - */ -struct rte_eth_rxtx_callback { - struct rte_eth_rxtx_callback *next; - union{ - rte_rx_callback_fn rx; - rte_tx_callback_fn tx; - } fn; - void *param; -}; - -/** * A set of values to describe the possible states of an eth device. */ enum rte_eth_dev_state { RTE_ETH_DEV_UNUSED = 0, RTE_ETH_DEV_ATTACHED, RTE_ETH_DEV_DEFERRED, + RTE_ETH_DEV_REMOVED, }; -/** - * @internal - * The generic data structure associated with each ethernet device. - * - * Pointers to burst-oriented packet receive and transmit functions are - * located at the beginning of the structure, along with the pointer to - * where all the data elements for the particular device are stored in shared - * memory. This split allows the function pointer and driver data to be per- - * process, while the actual configuration data for the device is shared. - */ -struct rte_eth_dev { - eth_rx_burst_t rx_pkt_burst; /**< Pointer to PMD receive function. */ - eth_tx_burst_t tx_pkt_burst; /**< Pointer to PMD transmit function. */ - eth_tx_prep_t tx_pkt_prepare; /**< Pointer to PMD transmit prepare function. */ - struct rte_eth_dev_data *data; /**< Pointer to device data */ - const struct eth_dev_ops *dev_ops; /**< Functions exported by PMD */ - struct rte_device *device; /**< Backing device */ - struct rte_intr_handle *intr_handle; /**< Device interrupt handle */ - /** User application callbacks for NIC interrupts */ - struct rte_eth_dev_cb_list link_intr_cbs; - /** - * User-supplied functions called from rx_burst to post-process - * received packets before passing them to the user - */ - struct rte_eth_rxtx_callback *post_rx_burst_cbs[RTE_MAX_QUEUES_PER_PORT]; - /** - * User-supplied functions called from tx_burst to pre-process - * received packets before passing them to the driver for transmission. - */ - struct rte_eth_rxtx_callback *pre_tx_burst_cbs[RTE_MAX_QUEUES_PER_PORT]; - enum rte_eth_dev_state state; /**< Flag indicating the port state */ - void *security_ctx; /**< Context for security ops */ -} __rte_cache_aligned; - -void * -rte_eth_dev_get_sec_ctx(uint8_t port_id); - struct rte_eth_dev_sriov { uint8_t active; /**< SRIOV is active with 16, 32 or 64 pools */ uint8_t nb_q_per_pool; /**< rx queue number per pool */ @@ -1760,56 +1218,13 @@ struct rte_eth_dev_sriov { #define RTE_ETH_NAME_MAX_LEN RTE_DEV_NAME_MAX_LEN -/** - * @internal - * The data part, with no function pointers, associated with each ethernet device. - * - * This structure is safe to place in shared memory to be common among different - * processes in a multi-process configuration. - */ -struct rte_eth_dev_data { - char name[RTE_ETH_NAME_MAX_LEN]; /**< Unique identifier name */ - - void **rx_queues; /**< Array of pointers to RX queues. */ - void **tx_queues; /**< Array of pointers to TX queues. */ - uint16_t nb_rx_queues; /**< Number of RX queues. */ - uint16_t nb_tx_queues; /**< Number of TX queues. */ - - struct rte_eth_dev_sriov sriov; /**< SRIOV data */ - - void *dev_private; /**< PMD-specific private data */ - - struct rte_eth_link dev_link; - /**< Link-level information & status */ +#define RTE_ETH_DEV_NO_OWNER 0 - struct rte_eth_conf dev_conf; /**< Configuration applied to device. */ - uint16_t mtu; /**< Maximum Transmission Unit. */ +#define RTE_ETH_MAX_OWNER_NAME_LEN 64 - uint32_t min_rx_buf_size; - /**< Common rx buffer size handled by all queues */ - - uint64_t rx_mbuf_alloc_failed; /**< RX ring mbuf allocation failures. */ - struct ether_addr* mac_addrs;/**< Device Ethernet Link address. */ - uint64_t mac_pool_sel[ETH_NUM_RECEIVE_MAC_ADDR]; - /** bitmap array of associating Ethernet MAC addresses to pools */ - struct ether_addr* hash_mac_addrs; - /** Device Ethernet MAC addresses of hash filtering. */ - uint16_t port_id; /**< Device [external] port identifier. */ - __extension__ - uint8_t promiscuous : 1, /**< RX promiscuous mode ON(1) / OFF(0). */ - scattered_rx : 1, /**< RX of scattered packets is ON(1) / OFF(0) */ - all_multicast : 1, /**< RX all multicast mode ON(1) / OFF(0). */ - dev_started : 1, /**< Device state: STARTED(1) / STOPPED(0). */ - lro : 1; /**< RX LRO is ON(1) / OFF(0) */ - uint8_t rx_queue_state[RTE_MAX_QUEUES_PER_PORT]; - /** Queues state: STARTED(1) / STOPPED(0) */ - uint8_t tx_queue_state[RTE_MAX_QUEUES_PER_PORT]; - /** Queues state: STARTED(1) / STOPPED(0) */ - uint32_t dev_flags; /**< Capabilities */ - enum rte_kernel_driver kdrv; /**< Kernel driver passthrough */ - int numa_node; /**< NUMA node connection */ - struct rte_vlan_filter_conf vlan_filter_conf; - /**< VLAN filter configuration. */ +struct rte_eth_dev_owner { + uint64_t id; /**< The owner unique identifier. */ + char name[RTE_ETH_MAX_OWNER_NAME_LEN]; /**< The owner name. */ }; /** Device supports link state interrupt */ @@ -1820,11 +1235,29 @@ struct rte_eth_dev_data { #define RTE_ETH_DEV_INTR_RMV 0x0008 /** - * @internal - * The pool of *rte_eth_dev* structures. The size of the pool - * is configured at compile-time in the <rte_ethdev.c> file. + * @warning + * @b EXPERIMENTAL: this API may change without prior notice. + * + * Iterates over valid ethdev ports owned by a specific owner. + * + * @param port_id + * The id of the next possible valid owned port. + * @param owner_id + * The owner identifier. + * RTE_ETH_DEV_NO_OWNER means iterate over all valid ownerless ports. + * @return + * Next valid port id owned by owner_id, RTE_MAX_ETHPORTS if there is none. + */ +uint64_t __rte_experimental rte_eth_find_next_owned_by(uint16_t port_id, + const uint64_t owner_id); + +/** + * Macro to iterate over all enabled ethdev ports owned by a specific owner. */ -extern struct rte_eth_dev rte_eth_devices[]; +#define RTE_ETH_FOREACH_DEV_OWNED_BY(p, o) \ + for (p = rte_eth_find_next_owned_by(0, o); \ + (unsigned int)p < (unsigned int)RTE_MAX_ETHPORTS; \ + p = rte_eth_find_next_owned_by(p + 1, o)) /** * Iterates over valid ethdev ports. @@ -1837,74 +1270,99 @@ extern struct rte_eth_dev rte_eth_devices[]; uint16_t rte_eth_find_next(uint16_t port_id); /** - * Macro to iterate over all enabled ethdev ports. + * Macro to iterate over all enabled and ownerless ethdev ports. */ -#define RTE_ETH_FOREACH_DEV(p) \ - for (p = rte_eth_find_next(0); \ - (unsigned int)p < (unsigned int)RTE_MAX_ETHPORTS; \ - p = rte_eth_find_next(p + 1)) +#define RTE_ETH_FOREACH_DEV(p) \ + RTE_ETH_FOREACH_DEV_OWNED_BY(p, RTE_ETH_DEV_NO_OWNER) /** - * Get the total number of Ethernet devices that have been successfully - * initialized by the matching Ethernet driver during the PCI probing phase - * and that are available for applications to use. These devices must be - * accessed by using the ``RTE_ETH_FOREACH_DEV()`` macro to deal with - * non-contiguous ranges of devices. - * These non-contiguous ranges can be created by calls to hotplug functions or - * by some PMDs. + * @warning + * @b EXPERIMENTAL: this API may change without prior notice. + * + * Get a new unique owner identifier. + * An owner identifier is used to owns Ethernet devices by only one DPDK entity + * to avoid multiple management of device by different entities. * + * @param owner_id + * Owner identifier pointer. * @return - * - The total number of usable Ethernet devices. + * Negative errno value on error, 0 on success. */ -uint16_t rte_eth_dev_count(void); +int __rte_experimental rte_eth_dev_owner_new(uint64_t *owner_id); /** - * @internal - * Returns a ethdev slot specified by the unique identifier name. + * @warning + * @b EXPERIMENTAL: this API may change without prior notice. + * + * Set an Ethernet device owner. * - * @param name - * The pointer to the Unique identifier name for each Ethernet device + * @param port_id + * The identifier of the port to own. + * @param owner + * The owner pointer. * @return - * - The pointer to the ethdev slot, on success. NULL on error + * Negative errno value on error, 0 on success. */ -struct rte_eth_dev *rte_eth_dev_allocated(const char *name); +int __rte_experimental rte_eth_dev_owner_set(const uint16_t port_id, + const struct rte_eth_dev_owner *owner); /** - * @internal - * Allocates a new ethdev slot for an ethernet device and returns the pointer - * to that slot for the driver to use. + * @warning + * @b EXPERIMENTAL: this API may change without prior notice. * - * @param name Unique identifier name for each Ethernet device - * @param type Device type of this Ethernet device + * Unset Ethernet device owner to make the device ownerless. + * + * @param port_id + * The identifier of port to make ownerless. + * @param owner_id + * The owner identifier. * @return - * - Slot in the rte_dev_devices array for a new device; + * 0 on success, negative errno value on error. + */ +int __rte_experimental rte_eth_dev_owner_unset(const uint16_t port_id, + const uint64_t owner_id); + +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice. + * + * Remove owner from all Ethernet devices owned by a specific owner. + * + * @param owner_id + * The owner identifier. */ -struct rte_eth_dev *rte_eth_dev_allocate(const char *name); +void __rte_experimental rte_eth_dev_owner_delete(const uint64_t owner_id); /** - * @internal - * Attach to the ethdev already initialized by the primary - * process. + * @warning + * @b EXPERIMENTAL: this API may change without prior notice. + * + * Get the owner of an Ethernet device. * - * @param name Ethernet device's name. + * @param port_id + * The port identifier. + * @param owner + * The owner structure pointer to fill. * @return - * - Success: Slot in the rte_dev_devices array for attached - * device. - * - Error: Null pointer. + * 0 on success, negative errno value on error.. */ -struct rte_eth_dev *rte_eth_dev_attach_secondary(const char *name); +int __rte_experimental rte_eth_dev_owner_get(const uint16_t port_id, + struct rte_eth_dev_owner *owner); /** - * @internal - * Release the specified ethdev port. + * Get the total number of Ethernet devices that have been successfully + * initialized by the matching Ethernet driver during the PCI probing phase + * and that are available for applications to use. These devices must be + * accessed by using the ``RTE_ETH_FOREACH_DEV()`` macro to deal with + * non-contiguous ranges of devices. + * These non-contiguous ranges can be created by calls to hotplug functions or + * by some PMDs. * - * @param eth_dev - * The *eth_dev* pointer is the address of the *rte_eth_dev* structure. * @return - * - 0 on success, negative on error + * - The total number of usable Ethernet devices. */ -int rte_eth_dev_release_port(struct rte_eth_dev *eth_dev); +uint16_t rte_eth_dev_count(void); /** * Attach a new Ethernet device specified by arguments. @@ -1949,6 +1407,32 @@ int rte_eth_dev_detach(uint16_t port_id, char *devname); uint32_t rte_eth_speed_bitflag(uint32_t speed, int duplex); /** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Get DEV_RX_OFFLOAD_* flag name. + * + * @param offload + * Offload flag. + * @return + * Offload name or 'UNKNOWN' if the flag cannot be recognised. + */ +const char * __rte_experimental rte_eth_dev_rx_offload_name(uint64_t offload); + +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Get DEV_TX_OFFLOAD_* flag name. + * + * @param offload + * Offload flag. + * @return + * Offload name or 'UNKNOWN' if the flag cannot be recognised. + */ +const char * __rte_experimental rte_eth_dev_tx_offload_name(uint64_t offload); + +/** * Configure an Ethernet device. * This function must be invoked first before any other function in the * Ethernet API. This function can also be re-invoked when a device is in the @@ -1984,17 +1468,18 @@ int rte_eth_dev_configure(uint16_t port_id, uint16_t nb_rx_queue, uint16_t nb_tx_queue, const struct rte_eth_conf *eth_conf); /** - * @internal - * Release device queues and clear its configuration to force the user - * application to reconfigure it. It is for internal use only. + * @warning + * @b EXPERIMENTAL: this API may change without prior notice. * - * @param dev - * Pointer to struct rte_eth_dev. + * Check if an Ethernet device was physically removed. * + * @param port_id + * The port identifier of the Ethernet device. * @return - * void + * 1 when the Ethernet device is removed, otherwise 0. */ -void _rte_eth_dev_reset(struct rte_eth_dev *dev); +int __rte_experimental +rte_eth_dev_is_removed(uint16_t port_id); /** * Allocate and set up a receive queue for an Ethernet device. @@ -2030,6 +1515,7 @@ void _rte_eth_dev_reset(struct rte_eth_dev *dev); * memory buffers to populate each descriptor of the receive ring. * @return * - 0: Success, receive queue correctly set up. + * - -EIO: if device is removed. * - -EINVAL: The size of network buffers which can be allocated from the * memory pool does not fit the various buffer sizes allowed by the * device controller. @@ -2059,7 +1545,7 @@ int rte_eth_rx_queue_setup(uint16_t port_id, uint16_t rx_queue_id, * the DMA memory allocated for the transmit descriptors of the ring. * @param tx_conf * The pointer to the configuration data to be used for the transmit queue. - * NULL value is allowed, in which case default RX configuration + * NULL value is allowed, in which case default TX configuration * will be used. * The *tx_conf* structure contains the following data: * - The *tx_thresh* structure with the values of the Prefetch, Host, and @@ -2130,6 +1616,7 @@ int rte_eth_dev_is_valid_port(uint16_t port_id); * @return * - 0: Success, the receive queue is started. * - -EINVAL: The port_id or the queue_id out of range. + * - -EIO: if device is removed. * - -ENOTSUP: The function not supported in PMD driver. */ int rte_eth_dev_rx_queue_start(uint16_t port_id, uint16_t rx_queue_id); @@ -2146,6 +1633,7 @@ int rte_eth_dev_rx_queue_start(uint16_t port_id, uint16_t rx_queue_id); * @return * - 0: Success, the receive queue is stopped. * - -EINVAL: The port_id or the queue_id out of range. + * - -EIO: if device is removed. * - -ENOTSUP: The function not supported in PMD driver. */ int rte_eth_dev_rx_queue_stop(uint16_t port_id, uint16_t rx_queue_id); @@ -2163,6 +1651,7 @@ int rte_eth_dev_rx_queue_stop(uint16_t port_id, uint16_t rx_queue_id); * @return * - 0: Success, the transmit queue is started. * - -EINVAL: The port_id or the queue_id out of range. + * - -EIO: if device is removed. * - -ENOTSUP: The function not supported in PMD driver. */ int rte_eth_dev_tx_queue_start(uint16_t port_id, uint16_t tx_queue_id); @@ -2179,12 +1668,11 @@ int rte_eth_dev_tx_queue_start(uint16_t port_id, uint16_t tx_queue_id); * @return * - 0: Success, the transmit queue is stopped. * - -EINVAL: The port_id or the queue_id out of range. + * - -EIO: if device is removed. * - -ENOTSUP: The function not supported in PMD driver. */ int rte_eth_dev_tx_queue_stop(uint16_t port_id, uint16_t tx_queue_id); - - /** * Start an Ethernet device. * @@ -2211,7 +1699,6 @@ int rte_eth_dev_start(uint16_t port_id); */ void rte_eth_dev_stop(uint16_t port_id); - /** * Link up an Ethernet device. * @@ -2280,7 +1767,7 @@ void rte_eth_dev_close(uint16_t port_id); * - (-EINVAL) if port identifier is invalid. * - (-ENOTSUP) if hardware doesn't support this function. * - (-EPERM) if not ran from the primary process. - * - (-EIO) if re-initialisation failed. + * - (-EIO) if re-initialisation failed or device is removed. * - (-ENOMEM) if the reset failed due to OOM. * - (-EAGAIN) if the reset temporarily failed and should be retried later. */ @@ -2516,6 +2003,7 @@ int rte_eth_xstats_get_by_id(uint16_t port_id, const uint64_t *ids, * @return * 0 on success * -ENODEV for invalid port_id, + * -EIO if device is removed, * -EINVAL if the xstat_name doesn't exist in port_id */ int rte_eth_xstats_get_id_by_name(uint16_t port_id, const char *xstat_name, @@ -2607,6 +2095,7 @@ void rte_eth_dev_info_get(uint16_t port_id, struct rte_eth_dev_info *dev_info); * - (0) if successful. * - (-ENOTSUP) if operation is not supported. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - (>0) if *fw_size* is not enough to store firmware version, return * the size of the non truncated string. */ @@ -2678,6 +2167,7 @@ int rte_eth_dev_get_mtu(uint16_t port_id, uint16_t *mtu); * - (0) if successful. * - (-ENOTSUP) if operation is not supported. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - (-EINVAL) if *mtu* invalid. * - (-EBUSY) if operation is not allowed when the port is running */ @@ -2698,6 +2188,7 @@ int rte_eth_dev_set_mtu(uint16_t port_id, uint16_t mtu); * - (0) if successful. * - (-ENOSUP) if hardware-assisted VLAN filtering not configured. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - (-ENOSYS) if VLAN filtering on *port_id* disabled. * - (-EINVAL) if *vlan_id* > 4095. */ @@ -2740,6 +2231,7 @@ int rte_eth_dev_set_vlan_strip_on_queue(uint16_t port_id, uint16_t rx_queue_id, * - (0) if successful. * - (-ENOSUP) if hardware-assisted VLAN TPID setup is not supported. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. */ int rte_eth_dev_set_vlan_ether_type(uint16_t port_id, enum rte_vlan_type vlan_type, @@ -2764,6 +2256,7 @@ int rte_eth_dev_set_vlan_ether_type(uint16_t port_id, * - (0) if successful. * - (-ENOSUP) if hardware-assisted VLAN filtering not configured. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. */ int rte_eth_dev_set_vlan_offload(uint16_t port_id, int offload_mask); @@ -2797,491 +2290,6 @@ int rte_eth_dev_get_vlan_offload(uint16_t port_id); */ int rte_eth_dev_set_vlan_pvid(uint16_t port_id, uint16_t pvid, int on); -/** - * - * Retrieve a burst of input packets from a receive queue of an Ethernet - * device. The retrieved packets are stored in *rte_mbuf* structures whose - * pointers are supplied in the *rx_pkts* array. - * - * The rte_eth_rx_burst() function loops, parsing the RX ring of the - * receive queue, up to *nb_pkts* packets, and for each completed RX - * descriptor in the ring, it performs the following operations: - * - * - Initialize the *rte_mbuf* data structure associated with the - * RX descriptor according to the information provided by the NIC into - * that RX descriptor. - * - * - Store the *rte_mbuf* data structure into the next entry of the - * *rx_pkts* array. - * - * - Replenish the RX descriptor with a new *rte_mbuf* buffer - * allocated from the memory pool associated with the receive queue at - * initialization time. - * - * When retrieving an input packet that was scattered by the controller - * into multiple receive descriptors, the rte_eth_rx_burst() function - * appends the associated *rte_mbuf* buffers to the first buffer of the - * packet. - * - * The rte_eth_rx_burst() function returns the number of packets - * actually retrieved, which is the number of *rte_mbuf* data structures - * effectively supplied into the *rx_pkts* array. - * A return value equal to *nb_pkts* indicates that the RX queue contained - * at least *rx_pkts* packets, and this is likely to signify that other - * received packets remain in the input queue. Applications implementing - * a "retrieve as much received packets as possible" policy can check this - * specific case and keep invoking the rte_eth_rx_burst() function until - * a value less than *nb_pkts* is returned. - * - * This receive method has the following advantages: - * - * - It allows a run-to-completion network stack engine to retrieve and - * to immediately process received packets in a fast burst-oriented - * approach, avoiding the overhead of unnecessary intermediate packet - * queue/dequeue operations. - * - * - Conversely, it also allows an asynchronous-oriented processing - * method to retrieve bursts of received packets and to immediately - * queue them for further parallel processing by another logical core, - * for instance. However, instead of having received packets being - * individually queued by the driver, this approach allows the caller - * of the rte_eth_rx_burst() function to queue a burst of retrieved - * packets at a time and therefore dramatically reduce the cost of - * enqueue/dequeue operations per packet. - * - * - It allows the rte_eth_rx_burst() function of the driver to take - * advantage of burst-oriented hardware features (CPU cache, - * prefetch instructions, and so on) to minimize the number of CPU - * cycles per packet. - * - * To summarize, the proposed receive API enables many - * burst-oriented optimizations in both synchronous and asynchronous - * packet processing environments with no overhead in both cases. - * - * The rte_eth_rx_burst() function does not provide any error - * notification to avoid the corresponding overhead. As a hint, the - * upper-level application might check the status of the device link once - * being systematically returned a 0 value for a given number of tries. - * - * @param port_id - * The port identifier of the Ethernet device. - * @param queue_id - * The index of the receive queue from which to retrieve input packets. - * The value must be in the range [0, nb_rx_queue - 1] previously supplied - * to rte_eth_dev_configure(). - * @param rx_pkts - * The address of an array of pointers to *rte_mbuf* structures that - * must be large enough to store *nb_pkts* pointers in it. - * @param nb_pkts - * The maximum number of packets to retrieve. - * @return - * The number of packets actually retrieved, which is the number - * of pointers to *rte_mbuf* structures effectively supplied to the - * *rx_pkts* array. - */ -static inline uint16_t -rte_eth_rx_burst(uint16_t port_id, uint16_t queue_id, - struct rte_mbuf **rx_pkts, const uint16_t nb_pkts) -{ - struct rte_eth_dev *dev = &rte_eth_devices[port_id]; - -#ifdef RTE_LIBRTE_ETHDEV_DEBUG - RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0); - RTE_FUNC_PTR_OR_ERR_RET(*dev->rx_pkt_burst, 0); - - if (queue_id >= dev->data->nb_rx_queues) { - RTE_PMD_DEBUG_TRACE("Invalid RX queue_id=%d\n", queue_id); - return 0; - } -#endif - int16_t nb_rx = (*dev->rx_pkt_burst)(dev->data->rx_queues[queue_id], - rx_pkts, nb_pkts); - -#ifdef RTE_ETHDEV_RXTX_CALLBACKS - struct rte_eth_rxtx_callback *cb = dev->post_rx_burst_cbs[queue_id]; - - if (unlikely(cb != NULL)) { - do { - nb_rx = cb->fn.rx(port_id, queue_id, rx_pkts, nb_rx, - nb_pkts, cb->param); - cb = cb->next; - } while (cb != NULL); - } -#endif - - return nb_rx; -} - -/** - * Get the number of used descriptors of a rx queue - * - * @param port_id - * The port identifier of the Ethernet device. - * @param queue_id - * The queue id on the specific port. - * @return - * The number of used descriptors in the specific queue, or: - * (-EINVAL) if *port_id* or *queue_id* is invalid - * (-ENOTSUP) if the device does not support this function - */ -static inline int -rte_eth_rx_queue_count(uint16_t port_id, uint16_t queue_id) -{ - struct rte_eth_dev *dev; - - RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL); - dev = &rte_eth_devices[port_id]; - RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_count, -ENOTSUP); - if (queue_id >= dev->data->nb_rx_queues) - return -EINVAL; - - return (*dev->dev_ops->rx_queue_count)(dev, queue_id); -} - -/** - * Check if the DD bit of the specific RX descriptor in the queue has been set - * - * @param port_id - * The port identifier of the Ethernet device. - * @param queue_id - * The queue id on the specific port. - * @param offset - * The offset of the descriptor ID from tail. - * @return - * - (1) if the specific DD bit is set. - * - (0) if the specific DD bit is not set. - * - (-ENODEV) if *port_id* invalid. - * - (-ENOTSUP) if the device does not support this function - */ -static inline int -rte_eth_rx_descriptor_done(uint16_t port_id, uint16_t queue_id, uint16_t offset) -{ - struct rte_eth_dev *dev = &rte_eth_devices[port_id]; - RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); - RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_descriptor_done, -ENOTSUP); - return (*dev->dev_ops->rx_descriptor_done)( \ - dev->data->rx_queues[queue_id], offset); -} - -#define RTE_ETH_RX_DESC_AVAIL 0 /**< Desc available for hw. */ -#define RTE_ETH_RX_DESC_DONE 1 /**< Desc done, filled by hw. */ -#define RTE_ETH_RX_DESC_UNAVAIL 2 /**< Desc used by driver or hw. */ - -/** - * Check the status of a Rx descriptor in the queue - * - * It should be called in a similar context than the Rx function: - * - on a dataplane core - * - not concurrently on the same queue - * - * Since it's a dataplane function, no check is performed on port_id and - * queue_id. The caller must therefore ensure that the port is enabled - * and the queue is configured and running. - * - * Note: accessing to a random descriptor in the ring may trigger cache - * misses and have a performance impact. - * - * @param port_id - * A valid port identifier of the Ethernet device which. - * @param queue_id - * A valid Rx queue identifier on this port. - * @param offset - * The offset of the descriptor starting from tail (0 is the next - * packet to be received by the driver). - * - * @return - * - (RTE_ETH_RX_DESC_AVAIL): Descriptor is available for the hardware to - * receive a packet. - * - (RTE_ETH_RX_DESC_DONE): Descriptor is done, it is filled by hw, but - * not yet processed by the driver (i.e. in the receive queue). - * - (RTE_ETH_RX_DESC_UNAVAIL): Descriptor is unavailable, either hold by - * the driver and not yet returned to hw, or reserved by the hw. - * - (-EINVAL) bad descriptor offset. - * - (-ENOTSUP) if the device does not support this function. - * - (-ENODEV) bad port or queue (only if compiled with debug). - */ -static inline int -rte_eth_rx_descriptor_status(uint16_t port_id, uint16_t queue_id, - uint16_t offset) -{ - struct rte_eth_dev *dev; - void *rxq; - -#ifdef RTE_LIBRTE_ETHDEV_DEBUG - RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); -#endif - dev = &rte_eth_devices[port_id]; -#ifdef RTE_LIBRTE_ETHDEV_DEBUG - if (queue_id >= dev->data->nb_rx_queues) - return -ENODEV; -#endif - RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_descriptor_status, -ENOTSUP); - rxq = dev->data->rx_queues[queue_id]; - - return (*dev->dev_ops->rx_descriptor_status)(rxq, offset); -} - -#define RTE_ETH_TX_DESC_FULL 0 /**< Desc filled for hw, waiting xmit. */ -#define RTE_ETH_TX_DESC_DONE 1 /**< Desc done, packet is transmitted. */ -#define RTE_ETH_TX_DESC_UNAVAIL 2 /**< Desc used by driver or hw. */ - -/** - * Check the status of a Tx descriptor in the queue. - * - * It should be called in a similar context than the Tx function: - * - on a dataplane core - * - not concurrently on the same queue - * - * Since it's a dataplane function, no check is performed on port_id and - * queue_id. The caller must therefore ensure that the port is enabled - * and the queue is configured and running. - * - * Note: accessing to a random descriptor in the ring may trigger cache - * misses and have a performance impact. - * - * @param port_id - * A valid port identifier of the Ethernet device which. - * @param queue_id - * A valid Tx queue identifier on this port. - * @param offset - * The offset of the descriptor starting from tail (0 is the place where - * the next packet will be send). - * - * @return - * - (RTE_ETH_TX_DESC_FULL) Descriptor is being processed by the hw, i.e. - * in the transmit queue. - * - (RTE_ETH_TX_DESC_DONE) Hardware is done with this descriptor, it can - * be reused by the driver. - * - (RTE_ETH_TX_DESC_UNAVAIL): Descriptor is unavailable, reserved by the - * driver or the hardware. - * - (-EINVAL) bad descriptor offset. - * - (-ENOTSUP) if the device does not support this function. - * - (-ENODEV) bad port or queue (only if compiled with debug). - */ -static inline int rte_eth_tx_descriptor_status(uint16_t port_id, - uint16_t queue_id, uint16_t offset) -{ - struct rte_eth_dev *dev; - void *txq; - -#ifdef RTE_LIBRTE_ETHDEV_DEBUG - RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); -#endif - dev = &rte_eth_devices[port_id]; -#ifdef RTE_LIBRTE_ETHDEV_DEBUG - if (queue_id >= dev->data->nb_tx_queues) - return -ENODEV; -#endif - RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->tx_descriptor_status, -ENOTSUP); - txq = dev->data->tx_queues[queue_id]; - - return (*dev->dev_ops->tx_descriptor_status)(txq, offset); -} - -/** - * Send a burst of output packets on a transmit queue of an Ethernet device. - * - * The rte_eth_tx_burst() function is invoked to transmit output packets - * on the output queue *queue_id* of the Ethernet device designated by its - * *port_id*. - * The *nb_pkts* parameter is the number of packets to send which are - * supplied in the *tx_pkts* array of *rte_mbuf* structures, each of them - * allocated from a pool created with rte_pktmbuf_pool_create(). - * The rte_eth_tx_burst() function loops, sending *nb_pkts* packets, - * up to the number of transmit descriptors available in the TX ring of the - * transmit queue. - * For each packet to send, the rte_eth_tx_burst() function performs - * the following operations: - * - * - Pick up the next available descriptor in the transmit ring. - * - * - Free the network buffer previously sent with that descriptor, if any. - * - * - Initialize the transmit descriptor with the information provided - * in the *rte_mbuf data structure. - * - * In the case of a segmented packet composed of a list of *rte_mbuf* buffers, - * the rte_eth_tx_burst() function uses several transmit descriptors - * of the ring. - * - * The rte_eth_tx_burst() function returns the number of packets it - * actually sent. A return value equal to *nb_pkts* means that all packets - * have been sent, and this is likely to signify that other output packets - * could be immediately transmitted again. Applications that implement a - * "send as many packets to transmit as possible" policy can check this - * specific case and keep invoking the rte_eth_tx_burst() function until - * a value less than *nb_pkts* is returned. - * - * It is the responsibility of the rte_eth_tx_burst() function to - * transparently free the memory buffers of packets previously sent. - * This feature is driven by the *tx_free_thresh* value supplied to the - * rte_eth_dev_configure() function at device configuration time. - * When the number of free TX descriptors drops below this threshold, the - * 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 - * The index of the transmit queue through which output packets must be - * sent. - * The value must be in the range [0, nb_tx_queue - 1] previously supplied - * to rte_eth_dev_configure(). - * @param tx_pkts - * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures - * which contain the output packets. - * @param nb_pkts - * The maximum number of packets to transmit. - * @return - * The number of output packets actually stored in transmit descriptors of - * the transmit ring. The return value can be less than the value of the - * *tx_pkts* parameter when the transmit ring is full or has been filled up. - */ -static inline uint16_t -rte_eth_tx_burst(uint16_t port_id, uint16_t queue_id, - struct rte_mbuf **tx_pkts, uint16_t nb_pkts) -{ - struct rte_eth_dev *dev = &rte_eth_devices[port_id]; - -#ifdef RTE_LIBRTE_ETHDEV_DEBUG - RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0); - RTE_FUNC_PTR_OR_ERR_RET(*dev->tx_pkt_burst, 0); - - if (queue_id >= dev->data->nb_tx_queues) { - RTE_PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", queue_id); - return 0; - } -#endif - -#ifdef RTE_ETHDEV_RXTX_CALLBACKS - struct rte_eth_rxtx_callback *cb = dev->pre_tx_burst_cbs[queue_id]; - - if (unlikely(cb != NULL)) { - do { - nb_pkts = cb->fn.tx(port_id, queue_id, tx_pkts, nb_pkts, - cb->param); - cb = cb->next; - } while (cb != NULL); - } -#endif - - return (*dev->tx_pkt_burst)(dev->data->tx_queues[queue_id], tx_pkts, nb_pkts); -} - -/** - * @warning - * @b EXPERIMENTAL: this API may change without prior notice - * - * Process a burst of output packets on a transmit queue of an Ethernet device. - * - * The rte_eth_tx_prepare() function is invoked to prepare output packets to be - * transmitted on the output queue *queue_id* of the Ethernet device designated - * by its *port_id*. - * The *nb_pkts* parameter is the number of packets to be prepared which are - * supplied in the *tx_pkts* array of *rte_mbuf* structures, each of them - * allocated from a pool created with rte_pktmbuf_pool_create(). - * For each packet to send, the rte_eth_tx_prepare() function performs - * the following operations: - * - * - Check if packet meets devices requirements for tx offloads. - * - * - Check limitations about number of segments. - * - * - Check additional requirements when debug is enabled. - * - * - Update and/or reset required checksums when tx offload is set for packet. - * - * Since this function can modify packet data, provided mbufs must be safely - * writable (e.g. modified data cannot be in shared segment). - * - * The rte_eth_tx_prepare() function returns the number of packets ready to be - * sent. A return value equal to *nb_pkts* means that all packets are valid and - * ready to be sent, otherwise stops processing on the first invalid packet and - * leaves the rest packets untouched. - * - * When this functionality is not implemented in the driver, all packets are - * are returned untouched. - * - * @param port_id - * The port identifier of the Ethernet device. - * The value must be a valid port id. - * @param queue_id - * The index of the transmit queue through which output packets must be - * sent. - * The value must be in the range [0, nb_tx_queue - 1] previously supplied - * to rte_eth_dev_configure(). - * @param tx_pkts - * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures - * which contain the output packets. - * @param nb_pkts - * The maximum number of packets to process. - * @return - * The number of packets correct and ready to be sent. The return value can be - * less than the value of the *tx_pkts* parameter when some packet doesn't - * meet devices requirements with rte_errno set appropriately: - * - -EINVAL: offload flags are not correctly set - * - -ENOTSUP: the offload feature is not supported by the hardware - * - */ - -#ifndef RTE_ETHDEV_TX_PREPARE_NOOP - -static inline uint16_t -rte_eth_tx_prepare(uint16_t port_id, uint16_t queue_id, - struct rte_mbuf **tx_pkts, uint16_t nb_pkts) -{ - struct rte_eth_dev *dev; - -#ifdef RTE_LIBRTE_ETHDEV_DEBUG - if (!rte_eth_dev_is_valid_port(port_id)) { - RTE_PMD_DEBUG_TRACE("Invalid TX port_id=%d\n", port_id); - rte_errno = -EINVAL; - return 0; - } -#endif - - dev = &rte_eth_devices[port_id]; - -#ifdef RTE_LIBRTE_ETHDEV_DEBUG - if (queue_id >= dev->data->nb_tx_queues) { - RTE_PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", queue_id); - rte_errno = -EINVAL; - return 0; - } -#endif - - if (!dev->tx_pkt_prepare) - return nb_pkts; - - return (*dev->tx_pkt_prepare)(dev->data->tx_queues[queue_id], - tx_pkts, nb_pkts); -} - -#else - -/* - * Native NOOP operation for compilation targets which doesn't require any - * preparations steps, and functional NOOP may introduce unnecessary performance - * drop. - * - * Generally this is not a good idea to turn it on globally and didn't should - * be used if behavior of tx_preparation can change. - */ - -static inline uint16_t -rte_eth_tx_prepare(__rte_unused uint16_t port_id, - __rte_unused uint16_t queue_id, - __rte_unused struct rte_mbuf **tx_pkts, uint16_t nb_pkts) -{ - return nb_pkts; -} - -#endif - typedef void (*buffer_tx_error_fn)(struct rte_mbuf **unsent, uint16_t count, void *userdata); @@ -3321,91 +2329,6 @@ int rte_eth_tx_buffer_init(struct rte_eth_dev_tx_buffer *buffer, uint16_t size); /** - * Send any packets queued up for transmission on a port and HW queue - * - * This causes an explicit flush of packets previously buffered via the - * rte_eth_tx_buffer() function. It returns the number of packets successfully - * sent to the NIC, and calls the error callback for any unsent packets. Unless - * explicitly set up otherwise, the default callback simply frees the unsent - * packets back to the owning mempool. - * - * @param port_id - * The port identifier of the Ethernet device. - * @param queue_id - * The index of the transmit queue through which output packets must be - * sent. - * The value must be in the range [0, nb_tx_queue - 1] previously supplied - * to rte_eth_dev_configure(). - * @param buffer - * Buffer of packets to be transmit. - * @return - * The number of packets successfully sent to the Ethernet device. The error - * callback is called for any packets which could not be sent. - */ -static inline uint16_t -rte_eth_tx_buffer_flush(uint16_t port_id, uint16_t queue_id, - struct rte_eth_dev_tx_buffer *buffer) -{ - uint16_t sent; - uint16_t to_send = buffer->length; - - if (to_send == 0) - return 0; - - sent = rte_eth_tx_burst(port_id, queue_id, buffer->pkts, to_send); - - buffer->length = 0; - - /* All packets sent, or to be dealt with by callback below */ - if (unlikely(sent != to_send)) - buffer->error_callback(&buffer->pkts[sent], to_send - sent, - buffer->error_userdata); - - return sent; -} - -/** - * Buffer a single packet for future transmission on a port and queue - * - * This function takes a single mbuf/packet and buffers it for later - * transmission on the particular port and queue specified. Once the buffer is - * full of packets, an attempt will be made to transmit all the buffered - * packets. In case of error, where not all packets can be transmitted, a - * callback is called with the unsent packets as a parameter. If no callback - * is explicitly set up, the unsent packets are just freed back to the owning - * mempool. The function returns the number of packets actually sent i.e. - * 0 if no buffer flush occurred, otherwise the number of packets successfully - * flushed - * - * @param port_id - * The port identifier of the Ethernet device. - * @param queue_id - * The index of the transmit queue through which output packets must be - * sent. - * The value must be in the range [0, nb_tx_queue - 1] previously supplied - * to rte_eth_dev_configure(). - * @param buffer - * Buffer used to collect packets to be sent. - * @param tx_pkt - * Pointer to the packet mbuf to be sent. - * @return - * 0 = packet has been buffered for later transmission - * N > 0 = packet has been buffered, and the buffer was subsequently flushed, - * causing N packets to be sent, and the error callback to be called for - * the rest. - */ -static __rte_always_inline uint16_t -rte_eth_tx_buffer(uint16_t port_id, uint16_t queue_id, - struct rte_eth_dev_tx_buffer *buffer, struct rte_mbuf *tx_pkt) -{ - buffer->pkts[buffer->length++] = tx_pkt; - if (buffer->length < buffer->size) - return 0; - - return rte_eth_tx_buffer_flush(port_id, queue_id, buffer); -} - -/** * Configure a callback for buffered packets which cannot be sent * * Register a specific callback to be called when an attempt is made to send @@ -3505,6 +2428,7 @@ rte_eth_tx_buffer_count_callback(struct rte_mbuf **pkts, uint16_t unsent, * @return * Failure: < 0 * -ENODEV: Invalid interface + * -EIO: device is removed * -ENOTSUP: Driver does not support function * Success: >= 0 * 0-n: Number of packets freed. More packets may still remain in ring that @@ -3526,6 +2450,8 @@ enum rte_eth_event_type { RTE_ETH_EVENT_VF_MBOX, /**< message from the VF received by PF */ RTE_ETH_EVENT_MACSEC, /**< MACsec offload related event */ RTE_ETH_EVENT_INTR_RMV, /**< device removal event */ + RTE_ETH_EVENT_NEW, /**< port is probed */ + RTE_ETH_EVENT_DESTROY, /**< port is released */ RTE_ETH_EVENT_MAX /**< max value of this enum */ }; @@ -3533,13 +2459,12 @@ typedef int (*rte_eth_dev_cb_fn)(uint16_t port_id, enum rte_eth_event_type event, void *cb_arg, void *ret_param); /**< user application callback to be registered for interrupts */ - - /** - * Register a callback function for specific port id. + * Register a callback function for port event. * * @param port_id * Port id. + * RTE_ETH_ALL means register the event for all port ids. * @param event * Event interested. * @param cb_fn @@ -3556,10 +2481,11 @@ int rte_eth_dev_callback_register(uint16_t port_id, rte_eth_dev_cb_fn cb_fn, void *cb_arg); /** - * Unregister a callback function for specific port id. + * Unregister a callback function for port event. * * @param port_id * Port id. + * RTE_ETH_ALL means unregister the event for all port ids. * @param event * Event interested. * @param cb_fn @@ -3577,28 +2503,6 @@ int rte_eth_dev_callback_unregister(uint16_t port_id, rte_eth_dev_cb_fn cb_fn, void *cb_arg); /** - * @internal Executes all the user application registered callbacks for - * the specific device. It is for DPDK internal user only. User - * application should not call it directly. - * - * @param dev - * Pointer to struct rte_eth_dev. - * @param event - * Eth device interrupt event type. - * @param cb_arg - * callback parameter. - * @param ret_param - * To pass data back to user application. - * This allows the user application to decide if a particular function - * is permitted or not. - * - * @return - * int - */ -int _rte_eth_dev_callback_process(struct rte_eth_dev *dev, - enum rte_eth_event_type event, void *cb_arg, void *ret_param); - -/** * When there is no rx packet coming in Rx Queue for a long time, we can * sleep lcore related to RX Queue for power saving, and enable rx interrupt * to be triggered when Rx packet arrives. @@ -3617,6 +2521,7 @@ int _rte_eth_dev_callback_process(struct rte_eth_dev *dev, * - (-ENOTSUP) if underlying hardware OR driver doesn't support * that operation. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. */ int rte_eth_dev_rx_intr_enable(uint16_t port_id, uint16_t queue_id); @@ -3638,6 +2543,7 @@ int rte_eth_dev_rx_intr_enable(uint16_t port_id, uint16_t queue_id); * - (-ENOTSUP) if underlying hardware OR driver doesn't support * that operation. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. */ int rte_eth_dev_rx_intr_disable(uint16_t port_id, uint16_t queue_id); @@ -3695,6 +2601,7 @@ int rte_eth_dev_rx_intr_ctl_q(uint16_t port_id, uint16_t queue_id, * - (-ENOTSUP) if underlying hardware OR driver doesn't support * that operation. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. */ int rte_eth_led_on(uint16_t port_id); @@ -3709,6 +2616,7 @@ int rte_eth_led_on(uint16_t port_id); * - (-ENOTSUP) if underlying hardware OR driver doesn't support * that operation. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. */ int rte_eth_led_off(uint16_t port_id); @@ -3723,6 +2631,7 @@ int rte_eth_led_off(uint16_t port_id); * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support flow control. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. */ int rte_eth_dev_flow_ctrl_get(uint16_t port_id, struct rte_eth_fc_conf *fc_conf); @@ -3739,7 +2648,7 @@ int rte_eth_dev_flow_ctrl_get(uint16_t port_id, * - (-ENOTSUP) if hardware doesn't support flow control mode. * - (-ENODEV) if *port_id* invalid. * - (-EINVAL) if bad parameter - * - (-EIO) if flow control setup failure + * - (-EIO) if flow control setup failure or device is removed. */ int rte_eth_dev_flow_ctrl_set(uint16_t port_id, struct rte_eth_fc_conf *fc_conf); @@ -3757,7 +2666,7 @@ int rte_eth_dev_flow_ctrl_set(uint16_t port_id, * - (-ENOTSUP) if hardware doesn't support priority flow control mode. * - (-ENODEV) if *port_id* invalid. * - (-EINVAL) if bad parameter - * - (-EIO) if flow control setup failure + * - (-EIO) if flow control setup failure or device is removed. */ int rte_eth_dev_priority_flow_ctrl_set(uint16_t port_id, struct rte_eth_pfc_conf *pfc_conf); @@ -3766,7 +2675,7 @@ int rte_eth_dev_priority_flow_ctrl_set(uint16_t port_id, * Add a MAC address to an internal array of addresses used to enable whitelist * filtering to accept packets only if the destination MAC address matches. * - * @param port + * @param port_id * The port identifier of the Ethernet device. * @param mac_addr * The MAC address to add. @@ -3774,19 +2683,20 @@ int rte_eth_dev_priority_flow_ctrl_set(uint16_t port_id, * VMDq pool index to associate address with (if VMDq is enabled). If VMDq is * not enabled, this should be set to 0. * @return - * - (0) if successfully added or *mac_addr" was already added. + * - (0) if successfully added or *mac_addr* was already added. * - (-ENOTSUP) if hardware doesn't support this feature. * - (-ENODEV) if *port* is invalid. + * - (-EIO) if device is removed. * - (-ENOSPC) if no more MAC addresses can be added. * - (-EINVAL) if MAC address is invalid. */ -int rte_eth_dev_mac_addr_add(uint16_t port, struct ether_addr *mac_addr, +int rte_eth_dev_mac_addr_add(uint16_t port_id, struct ether_addr *mac_addr, uint32_t pool); /** * Remove a MAC address from the internal array of addresses. * - * @param port + * @param port_id * The port identifier of the Ethernet device. * @param mac_addr * MAC address to remove. @@ -3796,12 +2706,12 @@ int rte_eth_dev_mac_addr_add(uint16_t port, struct ether_addr *mac_addr, * - (-ENODEV) if *port* invalid. * - (-EADDRINUSE) if attempting to remove the default MAC address */ -int rte_eth_dev_mac_addr_remove(uint16_t port, struct ether_addr *mac_addr); +int rte_eth_dev_mac_addr_remove(uint16_t port_id, struct ether_addr *mac_addr); /** * Set the default MAC address. * - * @param port + * @param port_id * The port identifier of the Ethernet device. * @param mac_addr * New default MAC address. @@ -3811,13 +2721,13 @@ int rte_eth_dev_mac_addr_remove(uint16_t port, struct ether_addr *mac_addr); * - (-ENODEV) if *port* invalid. * - (-EINVAL) if MAC address is invalid. */ -int rte_eth_dev_default_mac_addr_set(uint16_t port, +int rte_eth_dev_default_mac_addr_set(uint16_t port_id, struct ether_addr *mac_addr); /** * Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device. * - * @param port + * @param port_id * The port identifier of the Ethernet device. * @param reta_conf * RETA to update. @@ -3828,15 +2738,16 @@ int rte_eth_dev_default_mac_addr_set(uint16_t port, * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support. * - (-EINVAL) if bad parameter. + * - (-EIO) if device is removed. */ -int rte_eth_dev_rss_reta_update(uint16_t port, +int rte_eth_dev_rss_reta_update(uint16_t port_id, struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size); /** * Query Redirection Table(RETA) of Receive Side Scaling of Ethernet device. * - * @param port + * @param port_id * The port identifier of the Ethernet device. * @param reta_conf * RETA to query. @@ -3847,8 +2758,9 @@ int rte_eth_dev_rss_reta_update(uint16_t port, * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support. * - (-EINVAL) if bad parameter. + * - (-EIO) if device is removed. */ -int rte_eth_dev_rss_reta_query(uint16_t port, +int rte_eth_dev_rss_reta_query(uint16_t port_id, struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size); @@ -3857,7 +2769,7 @@ int rte_eth_dev_rss_reta_query(uint16_t port, * MAC address, and the packet is routed to all VFs for which the RX mode is * accept packets that match the unicast hash table. * - * @param port + * @param port_id * The port identifier of the Ethernet device. * @param addr * Unicast MAC address. @@ -3868,9 +2780,10 @@ int rte_eth_dev_rss_reta_query(uint16_t port, * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - (-EINVAL) if bad parameter. */ -int rte_eth_dev_uc_hash_table_set(uint16_t port, struct ether_addr *addr, +int rte_eth_dev_uc_hash_table_set(uint16_t port_id, struct ether_addr *addr, uint8_t on); /** @@ -3878,7 +2791,7 @@ int rte_eth_dev_uc_hash_table_set(uint16_t port, struct ether_addr *addr, * Ethernet MAC addresses,the packet is routed to all VFs for which the RX * mode is accept packets that match the unicast hash table. * - * @param port + * @param port_id * The port identifier of the Ethernet device. * @param on * 1 - Set all unicast hash bitmaps for receiving all the Ethernet @@ -3888,9 +2801,10 @@ int rte_eth_dev_uc_hash_table_set(uint16_t port, struct ether_addr *addr, * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - (-EINVAL) if bad parameter. */ -int rte_eth_dev_uc_all_hash_table_set(uint16_t port, uint8_t on); +int rte_eth_dev_uc_all_hash_table_set(uint16_t port_id, uint8_t on); /** * Set a traffic mirroring rule on an Ethernet device @@ -3911,6 +2825,7 @@ int rte_eth_dev_uc_all_hash_table_set(uint16_t port, uint8_t on); * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support this feature. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - (-EINVAL) if the mr_conf information is not correct. */ int rte_eth_mirror_rule_set(uint16_t port_id, @@ -3929,6 +2844,7 @@ int rte_eth_mirror_rule_set(uint16_t port_id, * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support this feature. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - (-EINVAL) if bad parameter. */ int rte_eth_mirror_rule_reset(uint16_t port_id, @@ -3947,6 +2863,7 @@ int rte_eth_mirror_rule_reset(uint16_t port_id, * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support this feature. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - (-EINVAL) if bad parameter. */ int rte_eth_set_queue_rate_limit(uint16_t port_id, uint16_t queue_idx, @@ -3962,6 +2879,7 @@ int rte_eth_set_queue_rate_limit(uint16_t port_id, uint16_t queue_idx, * @return * - (0) if successful. * - (-ENODEV) if port identifier is invalid. + * - (-EIO) if device is removed. * - (-ENOTSUP) if hardware doesn't support. * - (-EINVAL) if bad parameter. */ @@ -3979,6 +2897,7 @@ int rte_eth_dev_rss_hash_update(uint16_t port_id, * @return * - (0) if successful. * - (-ENODEV) if port identifier is invalid. + * - (-EIO) if device is removed. * - (-ENOTSUP) if hardware doesn't support RSS. */ int @@ -4000,6 +2919,7 @@ rte_eth_dev_rss_hash_conf_get(uint16_t port_id, * @return * - (0) if successful. * - (-ENODEV) if port identifier is invalid. + * - (-EIO) if device is removed. * - (-ENOTSUP) if hardware doesn't support tunnel type. */ int @@ -4022,6 +2942,7 @@ rte_eth_dev_udp_tunnel_port_add(uint16_t port_id, * @return * - (0) if successful. * - (-ENODEV) if port identifier is invalid. + * - (-EIO) if device is removed. * - (-ENOTSUP) if hardware doesn't support tunnel type. */ int @@ -4040,6 +2961,7 @@ rte_eth_dev_udp_tunnel_port_delete(uint16_t port_id, * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support this filter type. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. */ int rte_eth_dev_filter_supported(uint16_t port_id, enum rte_filter_type filter_type); @@ -4060,6 +2982,7 @@ int rte_eth_dev_filter_supported(uint16_t port_id, * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - others depends on the specific operations implementation. */ int rte_eth_dev_filter_ctrl(uint16_t port_id, enum rte_filter_type filter_type, @@ -4075,6 +2998,7 @@ int rte_eth_dev_filter_ctrl(uint16_t port_id, enum rte_filter_type filter_type, * @return * - (0) if successful. * - (-ENODEV) if port identifier is invalid. + * - (-EIO) if device is removed. * - (-ENOTSUP) if hardware doesn't support. */ int rte_eth_dev_get_dcb_info(uint16_t port_id, @@ -4162,6 +3086,8 @@ void *rte_eth_add_first_rx_callback(uint16_t port_id, uint16_t queue_id, void *rte_eth_add_tx_callback(uint16_t port_id, uint16_t queue_id, rte_tx_callback_fn fn, void *user_param); +struct rte_eth_rxtx_callback; + /** * Remove an RX packet callback from a given port and queue. * @@ -4282,6 +3208,7 @@ int rte_eth_tx_queue_info_get(uint16_t port_id, uint16_t queue_id, * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - others depends on the specific operations implementation. */ int rte_eth_dev_get_reg_info(uint16_t port_id, struct rte_dev_reg_info *info); @@ -4295,6 +3222,7 @@ int rte_eth_dev_get_reg_info(uint16_t port_id, struct rte_dev_reg_info *info); * - (>=0) EEPROM size if successful. * - (-ENOTSUP) if hardware doesn't support. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - others depends on the specific operations implementation. */ int rte_eth_dev_get_eeprom_length(uint16_t port_id); @@ -4311,6 +3239,7 @@ int rte_eth_dev_get_eeprom_length(uint16_t port_id); * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - others depends on the specific operations implementation. */ int rte_eth_dev_get_eeprom(uint16_t port_id, struct rte_dev_eeprom_info *info); @@ -4327,6 +3256,7 @@ int rte_eth_dev_get_eeprom(uint16_t port_id, struct rte_dev_eeprom_info *info); * - (0) if successful. * - (-ENOTSUP) if hardware doesn't support. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - others depends on the specific operations implementation. */ int rte_eth_dev_set_eeprom(uint16_t port_id, struct rte_dev_eeprom_info *info); @@ -4345,6 +3275,7 @@ int rte_eth_dev_set_eeprom(uint16_t port_id, struct rte_dev_eeprom_info *info); * @return * - (0) if successful. * - (-ENODEV) if *port_id* invalid. + * - (-EIO) if device is removed. * - (-ENOTSUP) if PMD of *port_id* doesn't support multicast filtering. * - (-ENOSPC) if *port_id* has not enough multicast filtering resources. */ @@ -4361,6 +3292,7 @@ int rte_eth_dev_set_mc_addr_list(uint16_t port_id, * @return * - 0: Success. * - -ENODEV: The port ID is invalid. + * - -EIO: if device is removed. * - -ENOTSUP: The function is not supported by the Ethernet driver. */ int rte_eth_timesync_enable(uint16_t port_id); @@ -4374,6 +3306,7 @@ int rte_eth_timesync_enable(uint16_t port_id); * @return * - 0: Success. * - -ENODEV: The port ID is invalid. + * - -EIO: if device is removed. * - -ENOTSUP: The function is not supported by the Ethernet driver. */ int rte_eth_timesync_disable(uint16_t port_id); @@ -4393,6 +3326,7 @@ int rte_eth_timesync_disable(uint16_t port_id); * - 0: Success. * - -EINVAL: No timestamp is available. * - -ENODEV: The port ID is invalid. + * - -EIO: if device is removed. * - -ENOTSUP: The function is not supported by the Ethernet driver. */ int rte_eth_timesync_read_rx_timestamp(uint16_t port_id, @@ -4410,6 +3344,7 @@ int rte_eth_timesync_read_rx_timestamp(uint16_t port_id, * - 0: Success. * - -EINVAL: No timestamp is available. * - -ENODEV: The port ID is invalid. + * - -EIO: if device is removed. * - -ENOTSUP: The function is not supported by the Ethernet driver. */ int rte_eth_timesync_read_tx_timestamp(uint16_t port_id, @@ -4429,6 +3364,7 @@ int rte_eth_timesync_read_tx_timestamp(uint16_t port_id, * @return * - 0: Success. * - -ENODEV: The port ID is invalid. + * - -EIO: if device is removed. * - -ENOTSUP: The function is not supported by the Ethernet driver. */ int rte_eth_timesync_adjust_time(uint16_t port_id, int64_t delta); @@ -4464,35 +3400,12 @@ int rte_eth_timesync_read_time(uint16_t port_id, struct timespec *time); * - 0: Success. * - -EINVAL: No timestamp is available. * - -ENODEV: The port ID is invalid. + * - -EIO: if device is removed. * - -ENOTSUP: The function is not supported by the Ethernet driver. */ int rte_eth_timesync_write_time(uint16_t port_id, const struct timespec *time); /** - * Create memzone for HW rings. - * malloc can't be used as the physical address is needed. - * If the memzone is already created, then this function returns a ptr - * to the old one. - * - * @param eth_dev - * The *eth_dev* pointer is the address of the *rte_eth_dev* structure - * @param name - * The name of the memory zone - * @param queue_id - * The index of the queue to add to name - * @param size - * The sizeof of the memory area - * @param align - * Alignment for resulting memzone. Must be a power of 2. - * @param socket_id - * The *socket_id* argument is the socket identifier in case of NUMA. - */ -const struct rte_memzone * -rte_eth_dma_zone_reserve(const struct rte_eth_dev *eth_dev, const char *name, - uint16_t queue_id, size_t size, - unsigned align, int socket_id); - -/** * Config l2 tunnel ether type of an Ethernet device for filtering specific * tunnel packets by ether type. * @@ -4504,6 +3417,7 @@ rte_eth_dma_zone_reserve(const struct rte_eth_dev *eth_dev, const char *name, * @return * - (0) if successful. * - (-ENODEV) if port identifier is invalid. + * - (-EIO) if device is removed. * - (-ENOTSUP) if hardware doesn't support tunnel type. */ int @@ -4531,6 +3445,7 @@ rte_eth_dev_l2_tunnel_eth_type_conf(uint16_t port_id, * @return * - (0) if successful. * - (-ENODEV) if port identifier is invalid. + * - (-EIO) if device is removed. * - (-ENOTSUP) if hardware doesn't support tunnel type. */ int @@ -4588,7 +3503,6 @@ int rte_eth_dev_adjust_nb_rx_tx_desc(uint16_t port_id, uint16_t *nb_rx_desc, uint16_t *nb_tx_desc); - /** * Test if a port supports specific mempool ops. * @@ -4606,6 +3520,591 @@ int rte_eth_dev_adjust_nb_rx_tx_desc(uint16_t port_id, int rte_eth_dev_pool_ops_supported(uint16_t port_id, const char *pool); +/** + * Get the security context for the Ethernet device. + * + * @param port_id + * Port identifier of the Ethernet device + * @return + * - NULL on error. + * - pointer to security context on success. + */ +void * +rte_eth_dev_get_sec_ctx(uint8_t port_id); + + +#include <rte_ethdev_core.h> + +/** + * + * Retrieve a burst of input packets from a receive queue of an Ethernet + * device. The retrieved packets are stored in *rte_mbuf* structures whose + * pointers are supplied in the *rx_pkts* array. + * + * The rte_eth_rx_burst() function loops, parsing the RX ring of the + * receive queue, up to *nb_pkts* packets, and for each completed RX + * descriptor in the ring, it performs the following operations: + * + * - Initialize the *rte_mbuf* data structure associated with the + * RX descriptor according to the information provided by the NIC into + * that RX descriptor. + * + * - Store the *rte_mbuf* data structure into the next entry of the + * *rx_pkts* array. + * + * - Replenish the RX descriptor with a new *rte_mbuf* buffer + * allocated from the memory pool associated with the receive queue at + * initialization time. + * + * When retrieving an input packet that was scattered by the controller + * into multiple receive descriptors, the rte_eth_rx_burst() function + * appends the associated *rte_mbuf* buffers to the first buffer of the + * packet. + * + * The rte_eth_rx_burst() function returns the number of packets + * actually retrieved, which is the number of *rte_mbuf* data structures + * effectively supplied into the *rx_pkts* array. + * A return value equal to *nb_pkts* indicates that the RX queue contained + * at least *rx_pkts* packets, and this is likely to signify that other + * received packets remain in the input queue. Applications implementing + * a "retrieve as much received packets as possible" policy can check this + * specific case and keep invoking the rte_eth_rx_burst() function until + * a value less than *nb_pkts* is returned. + * + * This receive method has the following advantages: + * + * - It allows a run-to-completion network stack engine to retrieve and + * to immediately process received packets in a fast burst-oriented + * approach, avoiding the overhead of unnecessary intermediate packet + * queue/dequeue operations. + * + * - Conversely, it also allows an asynchronous-oriented processing + * method to retrieve bursts of received packets and to immediately + * queue them for further parallel processing by another logical core, + * for instance. However, instead of having received packets being + * individually queued by the driver, this approach allows the caller + * of the rte_eth_rx_burst() function to queue a burst of retrieved + * packets at a time and therefore dramatically reduce the cost of + * enqueue/dequeue operations per packet. + * + * - It allows the rte_eth_rx_burst() function of the driver to take + * advantage of burst-oriented hardware features (CPU cache, + * prefetch instructions, and so on) to minimize the number of CPU + * cycles per packet. + * + * To summarize, the proposed receive API enables many + * burst-oriented optimizations in both synchronous and asynchronous + * packet processing environments with no overhead in both cases. + * + * The rte_eth_rx_burst() function does not provide any error + * notification to avoid the corresponding overhead. As a hint, the + * upper-level application might check the status of the device link once + * being systematically returned a 0 value for a given number of tries. + * + * @param port_id + * The port identifier of the Ethernet device. + * @param queue_id + * The index of the receive queue from which to retrieve input packets. + * The value must be in the range [0, nb_rx_queue - 1] previously supplied + * to rte_eth_dev_configure(). + * @param rx_pkts + * The address of an array of pointers to *rte_mbuf* structures that + * must be large enough to store *nb_pkts* pointers in it. + * @param nb_pkts + * The maximum number of packets to retrieve. + * @return + * The number of packets actually retrieved, which is the number + * of pointers to *rte_mbuf* structures effectively supplied to the + * *rx_pkts* array. + */ +static inline uint16_t +rte_eth_rx_burst(uint16_t port_id, uint16_t queue_id, + struct rte_mbuf **rx_pkts, const uint16_t nb_pkts) +{ + struct rte_eth_dev *dev = &rte_eth_devices[port_id]; + +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0); + RTE_FUNC_PTR_OR_ERR_RET(*dev->rx_pkt_burst, 0); + + if (queue_id >= dev->data->nb_rx_queues) { + RTE_PMD_DEBUG_TRACE("Invalid RX queue_id=%d\n", queue_id); + return 0; + } +#endif + int16_t nb_rx = (*dev->rx_pkt_burst)(dev->data->rx_queues[queue_id], + rx_pkts, nb_pkts); + +#ifdef RTE_ETHDEV_RXTX_CALLBACKS + struct rte_eth_rxtx_callback *cb = dev->post_rx_burst_cbs[queue_id]; + + if (unlikely(cb != NULL)) { + do { + nb_rx = cb->fn.rx(port_id, queue_id, rx_pkts, nb_rx, + nb_pkts, cb->param); + cb = cb->next; + } while (cb != NULL); + } +#endif + + return nb_rx; +} + +/** + * Get the number of used descriptors of a rx queue + * + * @param port_id + * The port identifier of the Ethernet device. + * @param queue_id + * The queue id on the specific port. + * @return + * The number of used descriptors in the specific queue, or: + * (-EINVAL) if *port_id* or *queue_id* is invalid + * (-ENOTSUP) if the device does not support this function + */ +static inline int +rte_eth_rx_queue_count(uint16_t port_id, uint16_t queue_id) +{ + struct rte_eth_dev *dev; + + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL); + dev = &rte_eth_devices[port_id]; + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_count, -ENOTSUP); + if (queue_id >= dev->data->nb_rx_queues) + return -EINVAL; + + return (*dev->dev_ops->rx_queue_count)(dev, queue_id); +} + +/** + * Check if the DD bit of the specific RX descriptor in the queue has been set + * + * @param port_id + * The port identifier of the Ethernet device. + * @param queue_id + * The queue id on the specific port. + * @param offset + * The offset of the descriptor ID from tail. + * @return + * - (1) if the specific DD bit is set. + * - (0) if the specific DD bit is not set. + * - (-ENODEV) if *port_id* invalid. + * - (-ENOTSUP) if the device does not support this function + */ +static inline int +rte_eth_rx_descriptor_done(uint16_t port_id, uint16_t queue_id, uint16_t offset) +{ + struct rte_eth_dev *dev = &rte_eth_devices[port_id]; + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_descriptor_done, -ENOTSUP); + return (*dev->dev_ops->rx_descriptor_done)( \ + dev->data->rx_queues[queue_id], offset); +} + +#define RTE_ETH_RX_DESC_AVAIL 0 /**< Desc available for hw. */ +#define RTE_ETH_RX_DESC_DONE 1 /**< Desc done, filled by hw. */ +#define RTE_ETH_RX_DESC_UNAVAIL 2 /**< Desc used by driver or hw. */ + +/** + * Check the status of a Rx descriptor in the queue + * + * It should be called in a similar context than the Rx function: + * - on a dataplane core + * - not concurrently on the same queue + * + * Since it's a dataplane function, no check is performed on port_id and + * queue_id. The caller must therefore ensure that the port is enabled + * and the queue is configured and running. + * + * Note: accessing to a random descriptor in the ring may trigger cache + * misses and have a performance impact. + * + * @param port_id + * A valid port identifier of the Ethernet device which. + * @param queue_id + * A valid Rx queue identifier on this port. + * @param offset + * The offset of the descriptor starting from tail (0 is the next + * packet to be received by the driver). + * + * @return + * - (RTE_ETH_RX_DESC_AVAIL): Descriptor is available for the hardware to + * receive a packet. + * - (RTE_ETH_RX_DESC_DONE): Descriptor is done, it is filled by hw, but + * not yet processed by the driver (i.e. in the receive queue). + * - (RTE_ETH_RX_DESC_UNAVAIL): Descriptor is unavailable, either hold by + * the driver and not yet returned to hw, or reserved by the hw. + * - (-EINVAL) bad descriptor offset. + * - (-ENOTSUP) if the device does not support this function. + * - (-ENODEV) bad port or queue (only if compiled with debug). + */ +static inline int +rte_eth_rx_descriptor_status(uint16_t port_id, uint16_t queue_id, + uint16_t offset) +{ + struct rte_eth_dev *dev; + void *rxq; + +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); +#endif + dev = &rte_eth_devices[port_id]; +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + if (queue_id >= dev->data->nb_rx_queues) + return -ENODEV; +#endif + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_descriptor_status, -ENOTSUP); + rxq = dev->data->rx_queues[queue_id]; + + return (*dev->dev_ops->rx_descriptor_status)(rxq, offset); +} + +#define RTE_ETH_TX_DESC_FULL 0 /**< Desc filled for hw, waiting xmit. */ +#define RTE_ETH_TX_DESC_DONE 1 /**< Desc done, packet is transmitted. */ +#define RTE_ETH_TX_DESC_UNAVAIL 2 /**< Desc used by driver or hw. */ + +/** + * Check the status of a Tx descriptor in the queue. + * + * It should be called in a similar context than the Tx function: + * - on a dataplane core + * - not concurrently on the same queue + * + * Since it's a dataplane function, no check is performed on port_id and + * queue_id. The caller must therefore ensure that the port is enabled + * and the queue is configured and running. + * + * Note: accessing to a random descriptor in the ring may trigger cache + * misses and have a performance impact. + * + * @param port_id + * A valid port identifier of the Ethernet device which. + * @param queue_id + * A valid Tx queue identifier on this port. + * @param offset + * The offset of the descriptor starting from tail (0 is the place where + * the next packet will be send). + * + * @return + * - (RTE_ETH_TX_DESC_FULL) Descriptor is being processed by the hw, i.e. + * in the transmit queue. + * - (RTE_ETH_TX_DESC_DONE) Hardware is done with this descriptor, it can + * be reused by the driver. + * - (RTE_ETH_TX_DESC_UNAVAIL): Descriptor is unavailable, reserved by the + * driver or the hardware. + * - (-EINVAL) bad descriptor offset. + * - (-ENOTSUP) if the device does not support this function. + * - (-ENODEV) bad port or queue (only if compiled with debug). + */ +static inline int rte_eth_tx_descriptor_status(uint16_t port_id, + uint16_t queue_id, uint16_t offset) +{ + struct rte_eth_dev *dev; + void *txq; + +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); +#endif + dev = &rte_eth_devices[port_id]; +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + if (queue_id >= dev->data->nb_tx_queues) + return -ENODEV; +#endif + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->tx_descriptor_status, -ENOTSUP); + txq = dev->data->tx_queues[queue_id]; + + return (*dev->dev_ops->tx_descriptor_status)(txq, offset); +} + +/** + * Send a burst of output packets on a transmit queue of an Ethernet device. + * + * The rte_eth_tx_burst() function is invoked to transmit output packets + * on the output queue *queue_id* of the Ethernet device designated by its + * *port_id*. + * The *nb_pkts* parameter is the number of packets to send which are + * supplied in the *tx_pkts* array of *rte_mbuf* structures, each of them + * allocated from a pool created with rte_pktmbuf_pool_create(). + * The rte_eth_tx_burst() function loops, sending *nb_pkts* packets, + * up to the number of transmit descriptors available in the TX ring of the + * transmit queue. + * For each packet to send, the rte_eth_tx_burst() function performs + * the following operations: + * + * - Pick up the next available descriptor in the transmit ring. + * + * - Free the network buffer previously sent with that descriptor, if any. + * + * - Initialize the transmit descriptor with the information provided + * in the *rte_mbuf data structure. + * + * In the case of a segmented packet composed of a list of *rte_mbuf* buffers, + * the rte_eth_tx_burst() function uses several transmit descriptors + * of the ring. + * + * The rte_eth_tx_burst() function returns the number of packets it + * actually sent. A return value equal to *nb_pkts* means that all packets + * have been sent, and this is likely to signify that other output packets + * could be immediately transmitted again. Applications that implement a + * "send as many packets to transmit as possible" policy can check this + * specific case and keep invoking the rte_eth_tx_burst() function until + * a value less than *nb_pkts* is returned. + * + * It is the responsibility of the rte_eth_tx_burst() function to + * transparently free the memory buffers of packets previously sent. + * This feature is driven by the *tx_free_thresh* value supplied to the + * rte_eth_dev_configure() function at device configuration time. + * When the number of free TX descriptors drops below this threshold, the + * 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 + * The index of the transmit queue through which output packets must be + * sent. + * The value must be in the range [0, nb_tx_queue - 1] previously supplied + * to rte_eth_dev_configure(). + * @param tx_pkts + * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures + * which contain the output packets. + * @param nb_pkts + * The maximum number of packets to transmit. + * @return + * The number of output packets actually stored in transmit descriptors of + * the transmit ring. The return value can be less than the value of the + * *tx_pkts* parameter when the transmit ring is full or has been filled up. + */ +static inline uint16_t +rte_eth_tx_burst(uint16_t port_id, uint16_t queue_id, + struct rte_mbuf **tx_pkts, uint16_t nb_pkts) +{ + struct rte_eth_dev *dev = &rte_eth_devices[port_id]; + +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0); + RTE_FUNC_PTR_OR_ERR_RET(*dev->tx_pkt_burst, 0); + + if (queue_id >= dev->data->nb_tx_queues) { + RTE_PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", queue_id); + return 0; + } +#endif + +#ifdef RTE_ETHDEV_RXTX_CALLBACKS + struct rte_eth_rxtx_callback *cb = dev->pre_tx_burst_cbs[queue_id]; + + if (unlikely(cb != NULL)) { + do { + nb_pkts = cb->fn.tx(port_id, queue_id, tx_pkts, nb_pkts, + cb->param); + cb = cb->next; + } while (cb != NULL); + } +#endif + + return (*dev->tx_pkt_burst)(dev->data->tx_queues[queue_id], tx_pkts, nb_pkts); +} + +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Process a burst of output packets on a transmit queue of an Ethernet device. + * + * The rte_eth_tx_prepare() function is invoked to prepare output packets to be + * transmitted on the output queue *queue_id* of the Ethernet device designated + * by its *port_id*. + * The *nb_pkts* parameter is the number of packets to be prepared which are + * supplied in the *tx_pkts* array of *rte_mbuf* structures, each of them + * allocated from a pool created with rte_pktmbuf_pool_create(). + * For each packet to send, the rte_eth_tx_prepare() function performs + * the following operations: + * + * - Check if packet meets devices requirements for tx offloads. + * + * - Check limitations about number of segments. + * + * - Check additional requirements when debug is enabled. + * + * - Update and/or reset required checksums when tx offload is set for packet. + * + * Since this function can modify packet data, provided mbufs must be safely + * writable (e.g. modified data cannot be in shared segment). + * + * The rte_eth_tx_prepare() function returns the number of packets ready to be + * sent. A return value equal to *nb_pkts* means that all packets are valid and + * ready to be sent, otherwise stops processing on the first invalid packet and + * leaves the rest packets untouched. + * + * When this functionality is not implemented in the driver, all packets are + * are returned untouched. + * + * @param port_id + * The port identifier of the Ethernet device. + * The value must be a valid port id. + * @param queue_id + * The index of the transmit queue through which output packets must be + * sent. + * The value must be in the range [0, nb_tx_queue - 1] previously supplied + * to rte_eth_dev_configure(). + * @param tx_pkts + * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures + * which contain the output packets. + * @param nb_pkts + * The maximum number of packets to process. + * @return + * The number of packets correct and ready to be sent. The return value can be + * less than the value of the *tx_pkts* parameter when some packet doesn't + * meet devices requirements with rte_errno set appropriately: + * - -EINVAL: offload flags are not correctly set + * - -ENOTSUP: the offload feature is not supported by the hardware + * + */ + +#ifndef RTE_ETHDEV_TX_PREPARE_NOOP + +static inline uint16_t +rte_eth_tx_prepare(uint16_t port_id, uint16_t queue_id, + struct rte_mbuf **tx_pkts, uint16_t nb_pkts) +{ + struct rte_eth_dev *dev; + +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + if (!rte_eth_dev_is_valid_port(port_id)) { + RTE_PMD_DEBUG_TRACE("Invalid TX port_id=%d\n", port_id); + rte_errno = -EINVAL; + return 0; + } +#endif + + dev = &rte_eth_devices[port_id]; + +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + if (queue_id >= dev->data->nb_tx_queues) { + RTE_PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", queue_id); + rte_errno = -EINVAL; + return 0; + } +#endif + + if (!dev->tx_pkt_prepare) + return nb_pkts; + + return (*dev->tx_pkt_prepare)(dev->data->tx_queues[queue_id], + tx_pkts, nb_pkts); +} + +#else + +/* + * Native NOOP operation for compilation targets which doesn't require any + * preparations steps, and functional NOOP may introduce unnecessary performance + * drop. + * + * Generally this is not a good idea to turn it on globally and didn't should + * be used if behavior of tx_preparation can change. + */ + +static inline uint16_t +rte_eth_tx_prepare(__rte_unused uint16_t port_id, + __rte_unused uint16_t queue_id, + __rte_unused struct rte_mbuf **tx_pkts, uint16_t nb_pkts) +{ + return nb_pkts; +} + +#endif + +/** + * Send any packets queued up for transmission on a port and HW queue + * + * This causes an explicit flush of packets previously buffered via the + * rte_eth_tx_buffer() function. It returns the number of packets successfully + * sent to the NIC, and calls the error callback for any unsent packets. Unless + * explicitly set up otherwise, the default callback simply frees the unsent + * packets back to the owning mempool. + * + * @param port_id + * The port identifier of the Ethernet device. + * @param queue_id + * The index of the transmit queue through which output packets must be + * sent. + * The value must be in the range [0, nb_tx_queue - 1] previously supplied + * to rte_eth_dev_configure(). + * @param buffer + * Buffer of packets to be transmit. + * @return + * The number of packets successfully sent to the Ethernet device. The error + * callback is called for any packets which could not be sent. + */ +static inline uint16_t +rte_eth_tx_buffer_flush(uint16_t port_id, uint16_t queue_id, + struct rte_eth_dev_tx_buffer *buffer) +{ + uint16_t sent; + uint16_t to_send = buffer->length; + + if (to_send == 0) + return 0; + + sent = rte_eth_tx_burst(port_id, queue_id, buffer->pkts, to_send); + + buffer->length = 0; + + /* All packets sent, or to be dealt with by callback below */ + if (unlikely(sent != to_send)) + buffer->error_callback(&buffer->pkts[sent], to_send - sent, + buffer->error_userdata); + + return sent; +} + +/** + * Buffer a single packet for future transmission on a port and queue + * + * This function takes a single mbuf/packet and buffers it for later + * transmission on the particular port and queue specified. Once the buffer is + * full of packets, an attempt will be made to transmit all the buffered + * packets. In case of error, where not all packets can be transmitted, a + * callback is called with the unsent packets as a parameter. If no callback + * is explicitly set up, the unsent packets are just freed back to the owning + * mempool. The function returns the number of packets actually sent i.e. + * 0 if no buffer flush occurred, otherwise the number of packets successfully + * flushed + * + * @param port_id + * The port identifier of the Ethernet device. + * @param queue_id + * The index of the transmit queue through which output packets must be + * sent. + * The value must be in the range [0, nb_tx_queue - 1] previously supplied + * to rte_eth_dev_configure(). + * @param buffer + * Buffer used to collect packets to be sent. + * @param tx_pkt + * Pointer to the packet mbuf to be sent. + * @return + * 0 = packet has been buffered for later transmission + * N > 0 = packet has been buffered, and the buffer was subsequently flushed, + * causing N packets to be sent, and the error callback to be called for + * the rest. + */ +static __rte_always_inline uint16_t +rte_eth_tx_buffer(uint16_t port_id, uint16_t queue_id, + struct rte_eth_dev_tx_buffer *buffer, struct rte_mbuf *tx_pkt) +{ + buffer->pkts[buffer->length++] = tx_pkt; + if (buffer->length < buffer->size) + return 0; + + return rte_eth_tx_buffer_flush(port_id, queue_id, buffer); +} + #ifdef __cplusplus } #endif |