X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fnics%2Ffeatures.rst;h=6f8cac2c81d2774ab69b3f9ab2fbbd94c9c6b599;hb=5e741377657c8fce28037e025ea2f12371400476;hp=6538470ac7d71f08f429170681040ab1c6ae684e;hpb=d6f90afd307053277b2ed130f65f890be742fe4e;p=dpdk.git diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst index 6538470ac7..6f8cac2c81 100644 --- a/doc/guides/nics/features.rst +++ b/doc/guides/nics/features.rst @@ -1,32 +1,5 @@ -.. BSD LICENSE - Copyright(c) 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) 2017 Intel Corporation. Features Overview ================= @@ -136,6 +109,18 @@ invoke rte_eth_tx_burst() concurrently on the same Tx queue without SW lock. * **[related] API**: ``rte_eth_tx_burst()``. +.. _nic_features_fast_mbuf_free: + +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:DEV_TX_OFFLOAD_MBUF_FAST_FREE``. +* **[provides] rte_eth_dev_info**: ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_MBUF_FAST_FREE``. + + .. _nic_features_free_tx_mbuf_on_demand: Free Tx mbuf on demand @@ -223,7 +208,7 @@ 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.ol_flags:`` ``PKT_TX_TCP_SEG``, ``PKT_TX_IPV4``, ``PKT_TX_IPV6``, ``PKT_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:DEV_TX_OFFLOAD_TCP_TSO,DEV_TX_OFFLOAD_UDP_TSO``. @@ -293,6 +278,17 @@ Supports RSS hashing on RX. * **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_RSS_HASH``, ``mbuf.rss``. +.. _nic_features_inner_rss: + +Inner RSS +--------- + +Supports RX RSS hashing on Inner headers. + +* **[uses] rte_flow_action_rss**: ``level``. +* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_RSS_HASH``, ``mbuf.rss``. + + .. _nic_features_rss_key_update: RSS key update @@ -494,14 +490,32 @@ Supports adding traffic mirroring rules. * **[related] API**: ``rte_eth_mirror_rule_set()``, ``rte_eth_mirror_rule_reset()``. +.. _nic_features_inline_crypto_doc: + +Inline crypto +------------- + +Supports inline crypto processing (e.g. inline IPsec). See Security library and PMD documentation for more details. + +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_SECURITY``, +* **[uses] rte_eth_txconf,rte_eth_txmode**: ``offloads:DEV_TX_OFFLOAD_SECURITY``. +* **[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:DEV_RX_OFFLOAD_SECURITY``, + ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_SECURITY``. +* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_SEC_OFFLOAD``, + ``mbuf.ol_flags:PKT_TX_SEC_OFFLOAD``, ``mbuf.ol_flags:PKT_RX_SEC_OFFLOAD_FAILED``. + + .. _nic_features_crc_offload: 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:DEV_RX_OFFLOAD_CRC_STRIP``. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_KEEP_CRC``. .. _nic_features_vlan_offload: @@ -513,8 +527,9 @@ Supports VLAN offload to hardware. * **[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``. +* **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_VLAN``, ``mbuf.vlan_tci``. * **[implements] eth_dev_ops**: ``vlan_offload_set``. -* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_VLAN_STRIPPED``, ``mbuf.vlan_tci``. +* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_VLAN_STRIPPED``, ``mbuf.ol_flags:PKT_RX_VLAN`` ``mbuf.vlan_tci``. * **[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()``, @@ -530,9 +545,10 @@ 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``. +* **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_QINQ``, ``mbuf.vlan_tci_outer``. +* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_QINQ_STRIPPED``, ``mbuf.ol_flags:PKT_RX_QINQ``, + ``mbuf.ol_flags:PKT_RX_VLAN_STRIPPED``, ``mbuf.ol_flags:PKT_RX_VLAN`` + ``mbuf.vlan_tci``, ``mbuf.vlan_tci_outer``. * **[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``. @@ -548,6 +564,7 @@ Supports L3 checksum offload. * **[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``. +* **[uses] mbuf**: ``mbuf.l2_len``, ``mbuf.l3_len``. * **[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``. @@ -562,17 +579,30 @@ 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_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_UDP_CKSUM,DEV_RX_OFFLOAD_TCP_CKSUM,DEV_RX_OFFLOAD_SCTP_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] 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``. +* **[uses] mbuf**: ``mbuf.l2_len``, ``mbuf.l3_len``. * **[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,rx_queue_offload_capa:DEV_RX_OFFLOAD_UDP_CKSUM,DEV_RX_OFFLOAD_TCP_CKSUM``, +* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa:DEV_RX_OFFLOAD_UDP_CKSUM,DEV_RX_OFFLOAD_TCP_CKSUM,DEV_RX_OFFLOAD_SCTP_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``. +* **[related] eth_dev_ops**: ``read_clock``. .. _nic_features_macsec_offload: @@ -614,6 +644,16 @@ Inner L4 checksum Supports inner packet L4 checksum. +* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_OUTER_UDP_CKSUM``. +* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_OUTER_L4_CKSUM_UNKNOWN`` | + ``PKT_RX_OUTER_L4_CKSUM_BAD`` | ``PKT_RX_OUTER_L4_CKSUM_GOOD`` | ``PKT_RX_OUTER_L4_CKSUM_INVALID``. +* **[uses] rte_eth_txconf,rte_eth_txmode**: ``offloads:DEV_TX_OFFLOAD_OUTER_UDP_CKSUM``. +* **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_OUTER_IPV4`` | ``PKT_TX_OUTER_IPV6``. + ``mbuf.ol_flags:PKT_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:DEV_RX_OFFLOAD_OUTER_UDP_CKSUM``, + ``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_OUTER_UDP_CKSUM``. + .. _nic_features_packet_type_parsing: @@ -628,15 +668,6 @@ 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 -------- @@ -744,6 +775,17 @@ Supports getting/setting device eeprom data. ``rte_eth_dev_set_eeprom()``. +.. _nic_features_module_eeprom_dump: + +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()``. + + .. _nic_features_register_dump: Registers dump @@ -887,7 +929,25 @@ Documentation describes performance values. See ``dpdk.org/doc/perf/*``. +.. _nic_features_runtime_rx_queue_setup: +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()``. + +.. _nic_features_runtime_tx_queue_setup: + +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()``. .. _nic_features_other: