diff options
Diffstat (limited to 'doc/guides/nics/features.rst')
| -rw-r--r-- | doc/guides/nics/features.rst | 78 |
1 files changed, 55 insertions, 23 deletions
diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst index 37ffbc68..bfeae80e 100644 --- a/doc/guides/nics/features.rst +++ b/doc/guides/nics/features.rst @@ -131,7 +131,8 @@ Lock-free Tx queue If a PMD advertises DEV_TX_OFFLOAD_MT_LOCKFREE capable, multiple threads can invoke rte_eth_tx_burst() concurrently on the same Tx queue without SW lock. -* **[provides] rte_eth_dev_info**: ``tx_offload_capa:DEV_TX_OFFLOAD_MT_LOCKFREE``. +* **[uses] rte_eth_txconf,rte_eth_txmode**: ``offloads:DEV_TX_OFFLOAD_MT_LOCKFREE``. +* **[provides] rte_eth_dev_info**: ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_MT_LOCKFREE``. * **[related] API**: ``rte_eth_tx_burst()``. @@ -179,7 +180,7 @@ Jumbo frame Supports Rx jumbo frames. -* **[uses] user config**: ``dev_conf.rxmode.jumbo_frame``, +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_JUMBO_FRAME``. ``dev_conf.rxmode.max_rx_pkt_len``. * **[related] rte_eth_dev_info**: ``max_rx_pktlen``. * **[related] API**: ``rte_eth_dev_set_mtu()``. @@ -192,7 +193,7 @@ Scattered Rx Supports receiving segmented mbufs. -* **[uses] user config**: ``dev_conf.rxmode.enable_scatter``. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_SCATTER``. * **[implements] datapath**: ``Scattered Rx function``. * **[implements] rte_eth_dev_data**: ``scattered_rx``. * **[provides] eth_dev_ops**: ``rxq_info_get:scattered_rx``. @@ -206,11 +207,11 @@ LRO Supports Large Receive Offload. -* **[uses] user config**: ``dev_conf.rxmode.enable_lro``. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_TCP_LRO``. * **[implements] datapath**: ``LRO functionality``. * **[implements] rte_eth_dev_data**: ``lro``. * **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_LRO``, ``mbuf.tso_segsz``. -* **[provides] rte_eth_dev_info**: ``rx_offload_capa:DEV_RX_OFFLOAD_TCP_LRO``. +* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa:DEV_RX_OFFLOAD_TCP_LRO``. .. _nic_features_tso: @@ -220,11 +221,12 @@ TSO Supports TCP Segmentation Offloading. +* **[uses] rte_eth_txconf,rte_eth_txmode**: ``offloads:DEV_TX_OFFLOAD_TCP_TSO``. * **[uses] rte_eth_desc_lim**: ``nb_seg_max``, ``nb_mtu_seg_max``. * **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_TCP_SEG``. * **[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:DEV_TX_OFFLOAD_TCP_TSO,DEV_TX_OFFLOAD_UDP_TSO``. +* **[provides] rte_eth_dev_info**: ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_TCP_TSO,DEV_TX_OFFLOAD_UDP_TSO``. .. _nic_features_promiscuous_mode: @@ -363,7 +365,7 @@ VLAN filter Supports filtering of a VLAN Tag identifier. -* **[uses] user config**: ``dev_conf.rxmode.hw_vlan_filter``. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_VLAN_FILTER``. * **[implements] eth_dev_ops**: ``vlan_filter_set``. * **[related] API**: ``rte_eth_dev_vlan_filter()``. @@ -499,7 +501,7 @@ CRC offload Supports CRC stripping by hardware. -* **[uses] user config**: ``dev_conf.rxmode.hw_strip_crc``. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_CRC_STRIP``. .. _nic_features_vlan_offload: @@ -509,12 +511,12 @@ VLAN offload Supports VLAN offload to hardware. -* **[uses] user config**: ``dev_conf.rxmode.hw_vlan_strip``, - ``dev_conf.rxmode.hw_vlan_filter``, ``dev_conf.rxmode.hw_vlan_extend``. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_VLAN_STRIP,DEV_RX_OFFLOAD_VLAN_FILTER,DEV_RX_OFFLOAD_VLAN_EXTEND``. +* **[uses] rte_eth_txconf,rte_eth_txmode**: ``offloads:DEV_TX_OFFLOAD_VLAN_INSERT``. * **[implements] eth_dev_ops**: ``vlan_offload_set``. * **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_VLAN_STRIPPED``, ``mbuf.vlan_tci``. -* **[provides] rte_eth_dev_info**: ``rx_offload_capa:DEV_RX_OFFLOAD_VLAN_STRIP``, - ``tx_offload_capa:DEV_TX_OFFLOAD_VLAN_INSERT``. +* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa:DEV_RX_OFFLOAD_VLAN_STRIP``, + ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_VLAN_INSERT``. * **[related] API**: ``rte_eth_dev_set_vlan_offload()``, ``rte_eth_dev_get_vlan_offload()``. @@ -526,11 +528,13 @@ QinQ offload Supports QinQ (queue in queue) offload. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_QINQ_STRIP``. +* **[uses] rte_eth_txconf,rte_eth_txmode**: ``offloads:DEV_TX_OFFLOAD_QINQ_INSERT``. * **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_QINQ_PKT``. * **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_QINQ_STRIPPED``, ``mbuf.vlan_tci``, ``mbuf.vlan_tci_outer``. -* **[provides] rte_eth_dev_info**: ``rx_offload_capa:DEV_RX_OFFLOAD_QINQ_STRIP``, - ``tx_offload_capa:DEV_TX_OFFLOAD_QINQ_INSERT``. +* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa:DEV_RX_OFFLOAD_QINQ_STRIP``, + ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_QINQ_INSERT``. .. _nic_features_l3_checksum_offload: @@ -540,14 +544,15 @@ L3 checksum offload Supports L3 checksum offload. -* **[uses] user config**: ``dev_conf.rxmode.hw_ip_checksum``. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_IPV4_CKSUM``. +* **[uses] rte_eth_txconf,rte_eth_txmode**: ``offloads:DEV_TX_OFFLOAD_IPV4_CKSUM``. * **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_IP_CKSUM``, ``mbuf.ol_flags:PKT_TX_IPV4`` | ``PKT_TX_IPV6``. * **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_IP_CKSUM_UNKNOWN`` | ``PKT_RX_IP_CKSUM_BAD`` | ``PKT_RX_IP_CKSUM_GOOD`` | ``PKT_RX_IP_CKSUM_NONE``. -* **[provides] rte_eth_dev_info**: ``rx_offload_capa:DEV_RX_OFFLOAD_IPV4_CKSUM``, - ``tx_offload_capa:DEV_TX_OFFLOAD_IPV4_CKSUM``. +* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa:DEV_RX_OFFLOAD_IPV4_CKSUM``, + ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_IPV4_CKSUM``. .. _nic_features_l4_checksum_offload: @@ -557,15 +562,29 @@ L4 checksum offload Supports L4 checksum offload. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_UDP_CKSUM,DEV_RX_OFFLOAD_TCP_CKSUM``. +* **[uses] rte_eth_txconf,rte_eth_txmode**: ``offloads:DEV_TX_OFFLOAD_UDP_CKSUM,DEV_TX_OFFLOAD_TCP_CKSUM,DEV_TX_OFFLOAD_SCTP_CKSUM``. +* **[uses] user config**: ``dev_conf.rxmode.hw_ip_checksum``. * **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_IPV4`` | ``PKT_TX_IPV6``, ``mbuf.ol_flags:PKT_TX_L4_NO_CKSUM`` | ``PKT_TX_TCP_CKSUM`` | ``PKT_TX_SCTP_CKSUM`` | ``PKT_TX_UDP_CKSUM``. * **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_L4_CKSUM_UNKNOWN`` | ``PKT_RX_L4_CKSUM_BAD`` | ``PKT_RX_L4_CKSUM_GOOD`` | ``PKT_RX_L4_CKSUM_NONE``. -* **[provides] rte_eth_dev_info**: ``rx_offload_capa:DEV_RX_OFFLOAD_UDP_CKSUM,DEV_RX_OFFLOAD_TCP_CKSUM``, - ``tx_offload_capa:DEV_TX_OFFLOAD_UDP_CKSUM,DEV_TX_OFFLOAD_TCP_CKSUM,DEV_TX_OFFLOAD_SCTP_CKSUM``. +* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa:DEV_RX_OFFLOAD_UDP_CKSUM,DEV_RX_OFFLOAD_TCP_CKSUM``, + ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_UDP_CKSUM,DEV_TX_OFFLOAD_TCP_CKSUM,DEV_TX_OFFLOAD_SCTP_CKSUM``. + +.. _nic_features_hw_timestamp: + +Timestamp offload +----------------- +Supports Timestamp. + +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_TIMESTAMP``. +* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_TIMESTAMP``. +* **[provides] mbuf**: ``mbuf.timestamp``. +* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa: DEV_RX_OFFLOAD_TIMESTAMP``. .. _nic_features_macsec_offload: @@ -574,9 +593,11 @@ MACsec offload Supports MACsec. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_MACSEC_STRIP``. +* **[uses] rte_eth_txconf,rte_eth_txmode**: ``offloads:DEV_TX_OFFLOAD_MACSEC_INSERT``. * **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_MACSEC``. -* **[provides] rte_eth_dev_info**: ``rx_offload_capa:DEV_RX_OFFLOAD_MACSEC_STRIP``, - ``tx_offload_capa:DEV_TX_OFFLOAD_MACSEC_INSERT``. +* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa:DEV_RX_OFFLOAD_MACSEC_STRIP``, + ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_MACSEC_INSERT``. .. _nic_features_inner_l3_checksum: @@ -586,14 +607,16 @@ Inner L3 checksum Supports inner packet L3 checksum. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM``. +* **[uses] rte_eth_txconf,rte_eth_txmode**: ``offloads:DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM``. * **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_IP_CKSUM``, ``mbuf.ol_flags:PKT_TX_IPV4`` | ``PKT_TX_IPV6``, ``mbuf.ol_flags:PKT_TX_OUTER_IP_CKSUM``, ``mbuf.ol_flags:PKT_TX_OUTER_IPV4`` | ``PKT_TX_OUTER_IPV6``. * **[uses] mbuf**: ``mbuf.outer_l2_len``, ``mbuf.outer_l3_len``. * **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_EIP_CKSUM_BAD``. -* **[provides] rte_eth_dev_info**: ``rx_offload_capa:DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM``, - ``tx_offload_capa:DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM``. +* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa:DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM``, + ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM``. .. _nic_features_inner_l4_checksum: @@ -617,6 +640,15 @@ Supports packet type parsing and returns a list of supported types. .. _nic_features_timesync: +Mbuf fast 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:DEV_TX_OFFLOAD_MBUF_FAST_FREE``. +* **[provides] rte_eth_dev_info**: ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_MBUF_FAST_FREE``. + Timesync -------- |