2. Features Overview
This section explains the supported features that are listed in the Overview of Networking Drivers.
As a guide to implementers it also shows the structs where the features are defined and the APIs that can be use to get/set the values.
Following tags used for feature details, these are from driver point of view:
[uses] : Driver uses some kind of input from the application.
[implements] : Driver implements a functionality.
[provides] : Driver provides some kind of data to the application. It is possible
to provide data by implementing some function, but “provides” is used
for cases where provided data can’t be represented simply by a function.
[related] : Related API with that feature.
2.1. Speed capabilities
Supports getting the speed capabilities that the current device is capable of.
[provides] rte_eth_dev_info:
speed_capa:RTE_ETH_LINK_SPEED_*.[related] API:
rte_eth_dev_info_get().
2.2. Link speed configuration
Supports configurating fixed speed and link autonegotiation.
[uses] user config:
dev_conf.link_speeds:RTE_ETH_LINK_SPEED_*.[related] API:
rte_eth_dev_configure().
2.3. Link status
Supports getting the link speed, duplex mode and link state (up/down).
[implements] eth_dev_ops:
link_update.[implements] rte_eth_dev_data:
dev_link.[related] API:
rte_eth_link_get(),rte_eth_link_get_nowait().
2.4. Link status event
Supports Link Status Change interrupts.
[uses] user config:
dev_conf.intr_conf.lsc.[uses] rte_eth_dev_data:
dev_flags:RTE_ETH_DEV_INTR_LSC.[uses] rte_eth_event_type:
RTE_ETH_EVENT_INTR_LSC.[implements] rte_eth_dev_data:
dev_link.[provides] rte_pci_driver.drv_flags:
RTE_PCI_DRV_INTR_LSC.[related] API:
rte_eth_link_get(),rte_eth_link_get_nowait().
2.5. Removal event
Supports device removal interrupts.
[uses] user config:
dev_conf.intr_conf.rmv.[uses] rte_eth_dev_data:
dev_flags:RTE_ETH_DEV_INTR_RMV.[uses] rte_eth_event_type:
RTE_ETH_EVENT_INTR_RMV.[provides] rte_pci_driver.drv_flags:
RTE_PCI_DRV_INTR_RMV.
2.6. Queue status event
Supports queue enable/disable events.
[uses] rte_eth_event_type:
RTE_ETH_EVENT_QUEUE_STATE.
2.7. Rx interrupt
Supports Rx interrupts.
[uses] user config:
dev_conf.intr_conf.rxq.[implements] eth_dev_ops:
rx_queue_intr_enable,rx_queue_intr_disable.[related] API:
rte_eth_dev_rx_intr_enable(),rte_eth_dev_rx_intr_disable().
2.8. Lock-free Tx queue
If a PMD advertises RTE_ETH_TX_OFFLOAD_MT_LOCKFREE capable, multiple threads can invoke rte_eth_tx_burst() concurrently on the same Tx queue without SW lock.
[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_MT_LOCKFREE.[provides] rte_eth_dev_info:
tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_MT_LOCKFREE.[related] API:
rte_eth_tx_burst().
2.9. Fast mbuf free
Supports optimization for fast release of mbufs following successful Tx. Requires that per queue, all mbufs come from the same mempool and has refcnt = 1.
[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE.[provides] rte_eth_dev_info:
tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE.
2.10. Free Tx mbuf on demand
Supports freeing consumed buffers on a Tx ring.
[implements] eth_dev_ops:
tx_done_cleanup.[related] API:
rte_eth_tx_done_cleanup().
2.11. Queue start/stop
Supports starting/stopping a specific Rx/Tx queue of a port.
[implements] eth_dev_ops:
rx_queue_start,rx_queue_stop,tx_queue_start,tx_queue_stop.[related] API:
rte_eth_dev_rx_queue_start(),rte_eth_dev_rx_queue_stop(),rte_eth_dev_tx_queue_start(),rte_eth_dev_tx_queue_stop().
2.12. MTU update
Supports updating port MTU.
[implements] eth_dev_ops:
mtu_set.[implements] rte_eth_dev_data:
mtu.[provides] rte_eth_dev_info:
max_rx_pktlen.[related] API:
rte_eth_dev_set_mtu(),rte_eth_dev_get_mtu().
2.13. Scattered Rx
Supports receiving segmented mbufs.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_SCATTER.[implements] datapath:
Scattered Rx function.[implements] rte_eth_dev_data:
scattered_rx.[provides] eth_dev_ops:
rxq_info_get:scattered_rx.[related] eth_dev_ops:
rx_pkt_burst.
2.14. Buffer split on Rx
Scatters the packets being received on specified boundaries to segmented mbufs.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT.[uses] rte_eth_rxconf:
rx_conf.rx_seg, rx_conf.rx_nseg.[implements] eth_dev_ops:
buffer_split_supported_hdr_ptypes_get,[implements] datapath:
Buffer Split functionality.[provides] rte_eth_dev_info:
rx_offload_capa:RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT.[related] API:
rte_eth_rx_queue_setup(),rte_eth_buffer_split_get_supported_hdr_ptypes().
2.15. LRO
Supports Large Receive Offload.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_TCP_LRO.dev_conf.rxmode.max_lro_pkt_size.[implements] datapath:
LRO functionality.[implements] rte_eth_dev_data:
lro.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_LRO,mbuf.tso_segsz.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa:RTE_ETH_RX_OFFLOAD_TCP_LRO.[provides] rte_eth_dev_info:
max_lro_pkt_size.
2.16. TSO
Supports TCP Segmentation Offloading.
[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_TCP_TSO.[uses] rte_eth_desc_lim:
nb_seg_max,nb_mtu_seg_max.[uses] mbuf:
mbuf.ol_flags:RTE_MBUF_F_TX_TCP_SEG,RTE_MBUF_F_TX_IPV4,RTE_MBUF_F_TX_IPV6,RTE_MBUF_F_TX_IP_CKSUM.[uses] mbuf:
mbuf.tso_segsz,mbuf.l2_len,mbuf.l3_len,mbuf.l4_len.[implements] datapath:
TSO functionality.[provides] rte_eth_dev_info:
tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_TCP_TSO,RTE_ETH_TX_OFFLOAD_UDP_TSO.
2.17. Promiscuous mode
Supports enabling/disabling promiscuous mode for a port.
[implements] eth_dev_ops:
promiscuous_enable,promiscuous_disable.[implements] rte_eth_dev_data:
promiscuous.[related] API:
rte_eth_promiscuous_enable(),rte_eth_promiscuous_disable(),rte_eth_promiscuous_get().
2.18. Allmulticast mode
Supports enabling/disabling receiving multicast frames.
[implements] eth_dev_ops:
allmulticast_enable,allmulticast_disable.[implements] rte_eth_dev_data:
all_multicast.[related] API:
rte_eth_allmulticast_enable(),rte_eth_allmulticast_disable(),rte_eth_allmulticast_get().
2.19. Unicast MAC filter
Supports adding MAC addresses to enable incoming filtering of packets.
[implements] eth_dev_ops:
mac_addr_set,mac_addr_add,mac_addr_remove.[implements] rte_eth_dev_data:
mac_addrs.[related] API:
rte_eth_dev_default_mac_addr_set(),rte_eth_dev_mac_addr_add(),rte_eth_dev_mac_addr_remove(),rte_eth_macaddr_get().
2.20. Multicast MAC filter
Supports setting multicast addresses to filter.
[implements] eth_dev_ops:
set_mc_addr_list.[related] API:
rte_eth_dev_set_mc_addr_list().
2.21. RSS hash
Supports RSS hashing on RX.
[uses] user config:
dev_conf.rxmode.mq_mode=RTE_ETH_MQ_RX_RSS_FLAG.[uses] user config:
dev_conf.rx_adv_conf.rss_conf.[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_RSS_HASH.[provides] rte_eth_dev_info:
flow_type_rss_offloads.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_RSS_HASH,mbuf.rss.
2.22. Inner RSS
Supports RX RSS hashing on Inner headers.
[uses] rte_flow_action_rss:
level.[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_RSS_HASH.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_RSS_HASH,mbuf.rss.
2.23. RSS key update
Supports configuration of Receive Side Scaling (RSS) hash computation. Updating Receive Side Scaling (RSS) hash key.
[implements] eth_dev_ops:
rss_hash_update,rss_hash_conf_get.[provides] rte_eth_dev_info:
hash_key_size.[related] API:
rte_eth_dev_rss_hash_update(),rte_eth_dev_rss_hash_conf_get().
2.24. RSS reta update
Supports updating Redirection Table of the Receive Side Scaling (RSS).
[implements] eth_dev_ops:
reta_update,reta_query.[provides] rte_eth_dev_info:
reta_size.[related] API:
rte_eth_dev_rss_reta_update(),rte_eth_dev_rss_reta_query().
2.25. VMDq
Supports Virtual Machine Device Queues (VMDq).
[uses] user config:
dev_conf.rxmode.mq_mode=RTE_ETH_MQ_RX_VMDQ_FLAG.[uses] user config:
dev_conf.rx_adv_conf.vmdq_dcb_conf.[uses] user config:
dev_conf.rx_adv_conf.vmdq_rx_conf.[uses] user config:
dev_conf.tx_adv_conf.vmdq_dcb_tx_conf.[uses] user config:
dev_conf.tx_adv_conf.vmdq_tx_conf.
2.26. SR-IOV
Driver supports creating Virtual Functions.
[implements] rte_eth_dev_data:
sriov.
2.27. DCB
Supports Data Center Bridging (DCB).
[uses] user config:
dev_conf.rxmode.mq_mode=RTE_ETH_MQ_RX_DCB_FLAG.[uses] user config:
dev_conf.rx_adv_conf.vmdq_dcb_conf.[uses] user config:
dev_conf.rx_adv_conf.dcb_rx_conf.[uses] user config:
dev_conf.tx_adv_conf.vmdq_dcb_tx_conf.[uses] user config:
dev_conf.tx_adv_conf.vmdq_tx_conf.[implements] eth_dev_ops:
get_dcb_info.[related] API:
rte_eth_dev_get_dcb_info().
2.28. VLAN filter
Supports filtering of a VLAN Tag identifier.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_VLAN_FILTER.[implements] eth_dev_ops:
vlan_filter_set.[related] API:
rte_eth_dev_vlan_filter().
2.29. Flow control
Supports configuring link flow control.
[implements] eth_dev_ops:
flow_ctrl_get,flow_ctrl_set,priority_flow_ctrl_set,priority_flow_ctrl_queue_info_get,priority_flow_ctrl_queue_configure[related] API:
rte_eth_dev_flow_ctrl_get(),rte_eth_dev_flow_ctrl_set(),rte_eth_dev_priority_flow_ctrl_set(),rte_eth_dev_priority_flow_ctrl_queue_info_get(),rte_eth_dev_priority_flow_ctrl_queue_configure().
2.30. Rate limitation
Supports Tx rate limitation for a queue.
[implements] eth_dev_ops:
set_queue_rate_limit.[related] API:
rte_eth_set_queue_rate_limit().
2.31. Inline crypto
Supports inline crypto processing defined by rte_security library to perform crypto operations of security protocol while packet is received in NIC. NIC is not aware of protocol operations. See Security library and PMD documentation for more details.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_SECURITY,[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_SECURITY.[uses] mbuf:
mbuf.l2_len.[implements] rte_security_ops:
session_create,session_update,session_stats_get,session_destroy,set_pkt_metadata,capabilities_get.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa:RTE_ETH_RX_OFFLOAD_SECURITY,tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_SECURITY.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_SEC_OFFLOAD,mbuf.ol_flags:RTE_MBUF_F_TX_SEC_OFFLOAD,mbuf.ol_flags:RTE_MBUF_F_RX_SEC_OFFLOAD_FAILED.[provides] rte_security_ops, capabilities_get:
action: RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO
2.32. Inline protocol
Supports inline protocol processing defined by rte_security library to perform protocol processing for the security protocol (e.g. IPsec, MACSEC) while the packet is received at NIC. The NIC is capable of understanding the security protocol operations. See security library and PMD documentation for more details.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_SECURITY,[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_SECURITY.[uses] mbuf:
mbuf.l2_len,mbuf.l3_len,mbuf.ol_flags.[implements] rte_security_ops:
session_create,session_update,session_stats_get,session_destroy,set_pkt_metadata,capabilities_get.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa:RTE_ETH_RX_OFFLOAD_SECURITY,tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_SECURITY.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_SEC_OFFLOAD,mbuf.ol_flags:RTE_MBUF_F_TX_SEC_OFFLOAD,mbuf.ol_flags:RTE_MBUF_F_RX_SEC_OFFLOAD_FAILED.[provides] rte_security_ops, capabilities_get:
action: RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL
2.33. CRC offload
Supports CRC stripping by hardware. A PMD assumed to support CRC stripping by default. PMD should advertise if it supports keeping CRC.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_KEEP_CRC.
2.34. VLAN offload
Supports VLAN offload to hardware.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_VLAN_STRIP,RTE_ETH_RX_OFFLOAD_VLAN_FILTER,RTE_ETH_RX_OFFLOAD_VLAN_EXTEND.[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_VLAN_INSERT.[uses] mbuf:
mbuf.ol_flags:RTE_MBUF_F_TX_VLAN,mbuf.vlan_tci.[implements] eth_dev_ops:
vlan_offload_set.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_VLAN_STRIPPED,mbuf.ol_flags:RTE_MBUF_F_RX_VLANmbuf.vlan_tci.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa:RTE_ETH_RX_OFFLOAD_VLAN_STRIP,tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_VLAN_INSERT.[related] API:
rte_eth_dev_set_vlan_offload(),rte_eth_dev_get_vlan_offload().
2.35. QinQ offload
Supports QinQ (queue in queue) offload.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_QINQ_STRIP.[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_QINQ_INSERT.[uses] mbuf:
mbuf.ol_flags:RTE_MBUF_F_TX_QINQ,mbuf.vlan_tci_outer.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_QINQ_STRIPPED,mbuf.ol_flags:RTE_MBUF_F_RX_QINQ,mbuf.ol_flags:RTE_MBUF_F_RX_VLAN_STRIPPED,mbuf.ol_flags:RTE_MBUF_F_RX_VLANmbuf.vlan_tci,mbuf.vlan_tci_outer.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa:RTE_ETH_RX_OFFLOAD_QINQ_STRIP,tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_QINQ_INSERT.
2.36. FEC
Supports Forward error correction. Forward error correction (FEC) is a bit error correction mode. It adds error correction information to data packets at the transmit end, and uses the error correction information to correct the bit errors generated during data packet transmission at the receive end. This improves signal quality but also brings a delay to signals. This function can be enabled or disabled as required.
[implements] eth_dev_ops:
fec_get_capability,fec_get,fec_set.[provides] rte_eth_fec_capa:
speed:RTE_ETH_SPEED_NUM_*,capa:RTE_ETH_FEC_MODE_TO_CAPA().[related] API:
rte_eth_fec_get_capability(),rte_eth_fec_get(),rte_eth_fec_set().
2.37. IP reassembly
Supports IP reassembly in hardware.
[provides] eth_dev_ops:
ip_reassembly_capability_get,ip_reassembly_conf_get,ip_reassembly_conf_set.[related] API:
rte_eth_ip_reassembly_capability_get(),rte_eth_ip_reassembly_conf_get(),rte_eth_ip_reassembly_conf_set().
2.38. L3 checksum offload
Supports L3 checksum offload.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_IPV4_CKSUM.[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_IPV4_CKSUM.[uses] mbuf:
mbuf.ol_flags:RTE_MBUF_F_TX_IP_CKSUM,mbuf.ol_flags:RTE_MBUF_F_TX_IPV4|RTE_MBUF_F_TX_IPV6.[uses] mbuf:
mbuf.l2_len,mbuf.l3_len.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_IP_CKSUM_UNKNOWN|RTE_MBUF_F_RX_IP_CKSUM_BAD|RTE_MBUF_F_RX_IP_CKSUM_GOOD|RTE_MBUF_F_RX_IP_CKSUM_NONE.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa:RTE_ETH_RX_OFFLOAD_IPV4_CKSUM,tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_IPV4_CKSUM.
2.39. L4 checksum offload
Supports L4 checksum offload.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_UDP_CKSUM,RTE_ETH_RX_OFFLOAD_TCP_CKSUM,RTE_ETH_RX_OFFLOAD_SCTP_CKSUM.[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_UDP_CKSUM,RTE_ETH_TX_OFFLOAD_TCP_CKSUM,RTE_ETH_TX_OFFLOAD_SCTP_CKSUM.[uses] mbuf:
mbuf.ol_flags:RTE_MBUF_F_TX_IPV4|RTE_MBUF_F_TX_IPV6,mbuf.ol_flags:RTE_MBUF_F_TX_L4_NO_CKSUM|RTE_MBUF_F_TX_TCP_CKSUM|RTE_MBUF_F_TX_SCTP_CKSUM|RTE_MBUF_F_TX_UDP_CKSUM.[uses] mbuf:
mbuf.l2_len,mbuf.l3_len.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_L4_CKSUM_UNKNOWN|RTE_MBUF_F_RX_L4_CKSUM_BAD|RTE_MBUF_F_RX_L4_CKSUM_GOOD|RTE_MBUF_F_RX_L4_CKSUM_NONE.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa:RTE_ETH_RX_OFFLOAD_UDP_CKSUM,RTE_ETH_RX_OFFLOAD_TCP_CKSUM,RTE_ETH_RX_OFFLOAD_SCTP_CKSUM,tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_UDP_CKSUM,RTE_ETH_TX_OFFLOAD_TCP_CKSUM,RTE_ETH_TX_OFFLOAD_SCTP_CKSUM.
2.40. Timestamp offload
Supports Timestamp.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_TIMESTAMP.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_TIMESTAMP.[provides] mbuf:
mbuf.timestamp.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa: RTE_ETH_RX_OFFLOAD_TIMESTAMP.[related] eth_dev_ops:
read_clock.
2.41. MACsec offload
Supports MACsec.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_MACSEC_STRIP.[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_MACSEC_INSERT.[uses] mbuf:
mbuf.ol_flags:RTE_MBUF_F_TX_MACSEC.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa:RTE_ETH_RX_OFFLOAD_MACSEC_STRIP,tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_MACSEC_INSERT.
2.42. Inner L3 checksum
Supports inner packet L3 checksum.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_OUTER_IPV4_CKSUM.[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_OUTER_IPV4_CKSUM.[uses] mbuf:
mbuf.ol_flags:RTE_MBUF_F_TX_IP_CKSUM,mbuf.ol_flags:RTE_MBUF_F_TX_IPV4|RTE_MBUF_F_TX_IPV6,mbuf.ol_flags:RTE_MBUF_F_TX_OUTER_IP_CKSUM,mbuf.ol_flags:RTE_MBUF_F_TX_OUTER_IPV4|RTE_MBUF_F_TX_OUTER_IPV6.[uses] mbuf:
mbuf.outer_l2_len,mbuf.outer_l3_len.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_OUTER_IP_CKSUM_BAD.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa:RTE_ETH_RX_OFFLOAD_OUTER_IPV4_CKSUM,tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_OUTER_IPV4_CKSUM.
2.43. Inner L4 checksum
Supports inner packet L4 checksum.
[uses] rte_eth_rxconf,rte_eth_rxmode:
offloads:RTE_ETH_RX_OFFLOAD_OUTER_UDP_CKSUM.[provides] mbuf:
mbuf.ol_flags:RTE_MBUF_F_RX_OUTER_L4_CKSUM_UNKNOWN|RTE_MBUF_F_RX_OUTER_L4_CKSUM_BAD|RTE_MBUF_F_RX_OUTER_L4_CKSUM_GOOD|RTE_MBUF_F_RX_OUTER_L4_CKSUM_INVALID.[uses] rte_eth_txconf,rte_eth_txmode:
offloads:RTE_ETH_TX_OFFLOAD_OUTER_UDP_CKSUM.[uses] mbuf:
mbuf.ol_flags:RTE_MBUF_F_TX_OUTER_IPV4|RTE_MBUF_F_TX_OUTER_IPV6.mbuf.ol_flags:RTE_MBUF_F_TX_OUTER_UDP_CKSUM.[uses] mbuf:
mbuf.outer_l2_len,mbuf.outer_l3_len.[provides] rte_eth_dev_info:
rx_offload_capa,rx_queue_offload_capa:RTE_ETH_RX_OFFLOAD_OUTER_UDP_CKSUM,tx_offload_capa,tx_queue_offload_capa:RTE_ETH_TX_OFFLOAD_OUTER_UDP_CKSUM.
2.45. Packet type parsing
Supports packet type parsing and returns a list of supported types. Allows application to set ptypes it is interested in.
[implements] eth_dev_ops:
dev_supported_ptypes_get,[related] API:
rte_eth_dev_get_supported_ptypes(),rte_eth_dev_set_ptypes(),dev_ptypes_set.[provides] mbuf:
mbuf.packet_type.
2.46. Timesync
Supports IEEE1588/802.1AS timestamping.
[implements] eth_dev_ops:
timesync_enable,timesync_disabletimesync_read_rx_timestamp,timesync_read_tx_timestamp,timesync_adjust_time,timesync_read_time,timesync_write_time.[related] API:
rte_eth_timesync_enable(),rte_eth_timesync_disable(),rte_eth_timesync_read_rx_timestamp(),rte_eth_timesync_read_tx_timestamp,rte_eth_timesync_adjust_time(),rte_eth_timesync_read_time(),rte_eth_timesync_write_time().
2.47. Rx descriptor status
Supports check the status of a Rx descriptor. When rx_descriptor_status is
used, status can be “Available”, “Done” or “Unavailable”.
[implements] rte_eth_dev:
rx_descriptor_status.[related] API:
rte_eth_rx_descriptor_status().
2.48. Tx descriptor status
Supports checking the status of a Tx descriptor. Status can be “Full”, “Done” or “Unavailable.”
[implements] rte_eth_dev:
tx_descriptor_status.[related] API:
rte_eth_tx_descriptor_status().
2.49. Basic stats
Support basic statistics such as: ipackets, opackets, ibytes, obytes, imissed, ierrors, oerrors, rx_nombuf.
These apply to all drivers.
[implements] eth_dev_ops:
stats_get,stats_reset.[related] API:
rte_eth_stats_get,rte_eth_stats_reset().
2.50. Stats per queue
Supports per queue stats: q_ipackets, q_opackets, q_ibytes, q_obytes, q_errors.
Statistics only supplied for first RTE_ETHDEV_QUEUE_STAT_CNTRS (16) queues.
If driver does not support this feature the per queue stats will be zero.
[implements] eth_dev_ops:
stats_get,stats_reset.[related] API:
rte_eth_stats_get,rte_eth_stats_reset().
May also support configuring per-queue stat counter mapping. Used by some drivers to workaround HW limitations.
[implements] eth_dev_ops:
queue_stats_mapping_set.[related] API:
rte_eth_dev_set_rx_queue_stats_mapping(),rte_eth_dev_set_tx_queue_stats_mapping().
2.51. Extended stats
Supports Extended Statistics, changes from driver to driver.
[implements] eth_dev_ops:
xstats_get,xstats_reset,xstats_get_names.[implements] eth_dev_ops:
xstats_get_by_id,xstats_get_names_by_id.[related] API:
rte_eth_xstats_get(),rte_eth_xstats_reset(),rte_eth_xstats_get_names,rte_eth_xstats_get_by_id(),rte_eth_xstats_get_names_by_id(),rte_eth_xstats_get_id_by_name().
2.52. Congestion management
Supports congestion management.
[implements] eth_dev_ops:
cman_info_get,cman_config_set,cman_config_get.[related] API:
rte_eth_cman_info_get(),rte_eth_cman_config_init(),rte_eth_cman_config_set(),rte_eth_cman_config_get().
2.53. Traffic manager
Supports Traffic manager.
[implements] rte_tm_ops:
capabilities_get,shaper_profile_add,hierarchy_commitand so on.[related] API:
rte_tm_capabilities_get(),rte_tm_shaper_profile_add(),rte_tm_hierarchy_commit()and so on.
2.54. FW version
Supports getting device hardware firmware information.
[implements] eth_dev_ops:
fw_version_get.[related] API:
rte_eth_dev_fw_version_get().
2.55. EEPROM dump
Supports getting/setting device eeprom data.
[implements] eth_dev_ops:
get_eeprom_length,get_eeprom,set_eeprom.[related] API:
rte_eth_dev_get_eeprom_length(),rte_eth_dev_get_eeprom(),rte_eth_dev_set_eeprom().
2.56. Module EEPROM dump
Supports getting information and data of plugin module eeprom.
[implements] eth_dev_ops:
get_module_info,get_module_eeprom.[related] API:
rte_eth_dev_get_module_info(),rte_eth_dev_get_module_eeprom().
2.57. Registers dump
Supports retrieving device registers and registering attributes (number of registers and register size).
[implements] eth_dev_ops:
get_reg.[related] API:
rte_eth_dev_get_reg_info().
2.58. LED
Supports turning on/off a software controllable LED on a device.
[implements] eth_dev_ops:
dev_led_on,dev_led_off.[related] API:
rte_eth_led_on(),rte_eth_led_off().
2.59. Multiprocess aware
Driver can be used for primary-secondary process model.
2.60. FreeBSD
Supports running on FreeBSD.
2.61. Linux
Supports running on Linux.
2.62. Windows
Supports running on Windows.
2.63. ARMv7
Support armv7 architecture.
2.64. ARMv8
Support armv8a (64bit) architecture.
2.65. LoongArch64
Support 64-bit LoongArch architecture.
2.66. Power8
Support PowerPC architecture.
2.67. rv64
Support 64-bit RISC-V architecture.
2.68. x86-32
Support 32bits x86 architecture.
2.69. x86-64
Support 64bits x86 architecture.
2.70. Usage doc
Documentation describes usage.
See doc/guides/nics/*.rst
2.71. Design doc
Documentation describes design.
See doc/guides/nics/*.rst.
2.72. Perf doc
Documentation describes performance values.
See dpdk.org/doc/perf/*.
2.73. Runtime Rx queue setup
Supports Rx queue setup after device started.
[provides] rte_eth_dev_info:
dev_capa:RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP.[related] API:
rte_eth_dev_info_get().
2.74. Runtime Tx queue setup
Supports Tx queue setup after device started.
[provides] rte_eth_dev_info:
dev_capa:RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP.[related] API:
rte_eth_dev_info_get().
2.75. Burst mode info
Supports to get Rx/Tx packet burst mode information.
[implements] eth_dev_ops:
rx_burst_mode_get,tx_burst_mode_get.[related] API:
rte_eth_rx_burst_mode_get(),rte_eth_tx_burst_mode_get().
2.76. PMD power management using monitor addresses
Supports getting a monitoring condition to use together with Ethernet PMD power management (see Power Management for more details).
[implements] eth_dev_ops:
get_monitor_addr
2.77. Other dev ops not represented by a Feature
rxq_info_gettxq_info_getvlan_tpid_setvlan_strip_queue_setvlan_pvid_setrx_queue_countuc_hash_table_setuc_all_hash_table_setudp_tunnel_port_addudp_tunnel_port_deltx_pkt_prepare