X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fnics%2Fsfc_efx.rst;h=cf1269cc031a8a2eacb1406a48876444bc7afc8b;hb=3da4060a3070e9bb7bbc2ee75224b340d4460f25;hp=6b6b5e0ab1eee908e00c858953f5ae3bbf898b7e;hpb=5a1ae82d7b5f2d758937b05389aa686561643e9d;p=dpdk.git diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst index 6b6b5e0ab1..cf1269cc03 100644 --- a/doc/guides/nics/sfc_efx.rst +++ b/doc/guides/nics/sfc_efx.rst @@ -1,37 +1,17 @@ -.. BSD LICENSE - Copyright (c) 2016 Solarflare Communications Inc. - All rights reserved. +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2019-2021 Xilinx, Inc. + Copyright(c) 2016-2019 Solarflare Communications Inc. This software was jointly developed between OKTET Labs (under contract for Solarflare) and Solarflare Communications, Inc. - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - 1. Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - 2. 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. - - 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. - Solarflare libefx-based Poll Mode Driver ======================================== -The SFC EFX PMD (**librte_pmd_sfc_efx**) provides poll mode driver support -for **Solarflare SFN7xxx and SFN8xxx** family of 10/40 Gbps adapters and -**Solarflare XtremeScale X2xxx** family of 10/25/40/50/100 Gbps adapters. +The SFC EFX PMD (**librte_net_sfc_efx**) provides poll mode driver support +for **Solarflare SFN7xxx and SFN8xxx** family of 10/40 Gbps adapters, +**Solarflare XtremeScale X2xxx** family of 10/25/40/50/100 Gbps adapters and +**Alveo SN1000 SmartNICs** family of 10/25/40/50/100 Gbps adapters. SFC EFX PMD has support for the latest Linux and FreeBSD operating systems. More information can be found at `Solarflare Communications website @@ -66,7 +46,7 @@ SFC EFX PMD has support for: - Allmulticast mode -- TCP segmentation offload (TSO) +- TCP segmentation offload (TSO) including VXLAN and GENEVE encapsulated - Multicast MAC filter @@ -82,6 +62,8 @@ SFC EFX PMD has support for: - Scattered Rx DMA for packet that are larger that a single Rx descriptor +- Receive queue interrupts + - Deferred receive and transmit queue start - Transmit VLAN insertion (if running firmware variant supports it) @@ -90,14 +72,14 @@ SFC EFX PMD has support for: - Loopback +- SR-IOV PF + Non-supported Features ---------------------- The features not yet supported include: -- Receive queue interupts - - Priority-based flow control - Configurable RX CRC stripping (always stripped) @@ -162,8 +144,9 @@ Flow API support Supported attributes: - Ingress +- Transfer -Supported pattern items: +Supported pattern items (***non-transfer*** rules): - VOID @@ -191,7 +174,7 @@ Supported pattern items: - NVGRE (exact match of virtual subnet ID) -Supported actions: +Supported actions (***non-transfer*** rules): - VOID @@ -201,14 +184,76 @@ Supported actions: - DROP +- FLAG (supported only with ef10_essb Rx datapath) + +- MARK (supported only with ef10_essb Rx datapath) + +Supported pattern items (***transfer*** rules): + +- PORT_ID (cannot repeat; conflicts with other traffic source items) + +- PHY_PORT (cannot repeat; conflicts with other traffic source items) + +- PF (cannot repeat; conflicts with other traffic source items) + +- VF (cannot repeat; conflicts with other traffic source items) + +- ETH + +- VLAN (double-tagging is supported) + +- IPV4 (source/destination addresses, IP transport protocol, + type of service, time to live) + +- IPV6 (source/destination addresses, IP transport protocol, + traffic class, hop limit) + +- TCP (source/destination ports, TCP header length + TCP flags) + +- UDP (source/destination ports) + +- VXLAN (exact match of VXLAN network identifier) + +- GENEVE (exact match of virtual network identifier) + +- NVGRE (exact match of virtual subnet ID) + +Supported actions (***transfer*** rules): + +- OF_POP_VLAN + +- OF_PUSH_VLAN + +- OF_VLAN_SET_VID + +- OF_VLAN_SET_PCP + +- FLAG + +- MARK + +- PHY_PORT + +- PF + +- VF + +- PORT_ID + +- DROP + Validating flow rules depends on the firmware variant. -Ethernet destinaton individual/group match -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +The :ref:`flow_isolated_mode` is supported. + +The implementation is natively thread-safe. + +Ethernet destination individual/group match +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ethernet item supports I/G matching, if only the corresponding bit is set -in the mask of destination address. If destinaton address in the spec is -multicast, it matches all multicast (and broadcast) packets, oherwise it +in the mask of destination address. If destination address in the spec is +multicast, it matches all multicast (and broadcast) packets, otherwise it matches unicast packets that are not filtered by other flow rules. Exceptions to flow rules @@ -232,10 +277,18 @@ conditions is met: Supported NICs -------------- +- Xilinx Adapters: + + - Alveo SN1022 SmartNIC + - Solarflare XtremeScale Adapters: - Solarflare X2522 Dual Port SFP28 10/25GbE Adapter + - Solarflare X2541 Single Port QSFP28 10/25G/100G Adapter + + - Solarflare X2542 Dual Port QSFP28 10/25G/100G Adapter + - Solarflare Flareon [Ultra] Server Adapters: - Solarflare SFN8522 Dual Port SFP+ Server Adapter @@ -282,17 +335,15 @@ Pre-Installation Configuration ------------------------------ -Config File Options -~~~~~~~~~~~~~~~~~~~ +Build Options +~~~~~~~~~~~~~ -The following options can be modified in the ``.config`` file. -Please note that enabling debugging options may affect system performance. - -- ``CONFIG_RTE_LIBRTE_SFC_EFX_PMD`` (default **y**) +The following build-time options may be enabled on build time using +``-Dc_args=`` meson argument (e.g. ``-Dc_args=-DRTE_LIBRTE_SFC_EFX_DEBUG``). - Enable compilation of Solarflare libefx-based poll-mode driver. +Please note that enabling debugging options may affect system performance. -- ``CONFIG_RTE_LIBRTE_SFC_EFX_DEBUG`` (default **n**) +- ``RTE_LIBRTE_SFC_EFX_DEBUG`` (undefined by default) Enable compilation of the extra run-time consistency checks. @@ -301,25 +352,36 @@ Per-Device Parameters ~~~~~~~~~~~~~~~~~~~~~ The following per-device parameters can be passed via EAL PCI device -whitelist option like "-w 02:00.0,arg1=value1,...". +allow option like "-a 02:00.0,arg1=value1,...". Case-insensitive 1/y/yes/on or 0/n/no/off may be used to specify boolean parameters value. -- ``rx_datapath`` [auto|efx|ef10|ef10_esps] (default **auto**) +- ``class`` [net|vdpa] (default **net**) + + Choose the mode of operation of ef100 device. + **net** device will work as network device and will be probed by net/sfc driver. + **vdpa** device will work as vdpa device and will be probed by vdpa/sfc driver. + If this parameter is not specified then ef100 device will operate as + network device. + +- ``rx_datapath`` [auto|efx|ef10|ef10_essb] (default **auto**) Choose receive datapath implementation. **auto** allows the driver itself to make a choice based on firmware features available and required by the datapath implementation. **efx** chooses libefx-based datapath which supports Rx scatter. + Supported for SFN7xxx, SFN8xxx and X2xxx family adapters only. **ef10** chooses EF10 (SFN7xxx, SFN8xxx, X2xxx) native datapath which is more efficient than libefx-based and provides richer packet type - classification, but lacks Rx scatter support. - **ef10_esps** chooses SFNX2xxx equal stride packed stream datapath + classification. + **ef10_essb** chooses SFNX2xxx equal stride super-buffer datapath which may be used on DPDK firmware variant only (see notes about its limitations above). + **ef100** chooses EF100 native datapath which is the only supported + Rx datapath for EF100 architecture based NICs. -- ``tx_datapath`` [auto|efx|ef10|ef10_simple] (default **auto**) +- ``tx_datapath`` [auto|efx|ef10|ef10_simple|ef100] (default **auto**) Choose transmit datapath implementation. **auto** allows the driver itself to make a choice based on firmware @@ -328,21 +390,24 @@ boolean parameters value. (full-feature firmware variant only), TSO and multi-segment mbufs. Mbuf segments may come from different mempools, and mbuf reference counters are treated responsibly. + Supported for SFN7xxx, SFN8xxx and X2xxx family adapters only. **ef10** chooses EF10 (SFN7xxx, SFN8xxx, X2xxx) native datapath which is - more efficient than libefx-based but has no VLAN insertion and TSO - support yet. + more efficient than libefx-based but has no VLAN insertion support yet. Mbuf segments may come from different mempools, and mbuf reference counters are treated responsibly. **ef10_simple** chooses EF10 (SFN7xxx, SFN8xxx, X2xxx) native datapath which is even more faster then **ef10** but does not support multi-segment mbufs, disallows multiple mempools and neglects mbuf reference counters. + **ef100** chooses EF100 native datapath which supports multi-segment + mbufs, VLAN insertion, inner/outer IPv4 and TCP/UDP checksum and TCP + segmentation offloads including VXLAN and GENEVE IPv4/IPv6 tunnels. - ``perf_profile`` [auto|throughput|low-latency] (default **throughput**) - Choose hardware tunning to be optimized for either throughput or + Choose hardware tuning to be optimized for either throughput or low-latency. **auto** allows NIC firmware to make a choice based on - installed licences and firmware variant configured using **sfboot**. + installed licenses and firmware variant configured using **sfboot**. - ``stats_update_period_ms`` [long] (default **1000**) @@ -356,10 +421,11 @@ boolean parameters value. - ``fw_variant`` [dont-care|full-feature|ultra-low-latency| capture-packed-stream|dpdk] (default **dont-care**) - Choose the preferred firmware variant to use. In order for the selected - option to have an effect, the **sfboot** utility must be configured with the - **auto** firmware-variant option. The preferred firmware variant applies to - all ports on the NIC. + Choose the preferred firmware variant to use. + The parameter is supported for SFN7xxX, SFN8xxx and X2xxx families only. + In order for the selected option to have an effect, the **sfboot** utility + must be configured with the **auto** firmware-variant option. + The preferred firmware variant applies to all ports on the NIC. **dont-care** ensures that the driver can attach to an unprivileged function. The datapath firmware type to use is controlled by the **sfboot** utility.