04ed01f1f6
The networking drivers features matrix had rows to show OS and kernel modules support: - BSD nic_uio - Linux UIO - Linux VFIO - Other kdrv - Windows The kernel modules details are removed to keep only OS support: - FreeBSD - Linux - Windows Signed-off-by: Thomas Monjalon <thomas@monjalon.net> Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru> Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
156 lines
2.9 KiB
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156 lines
2.9 KiB
ReStructuredText
.. SPDX-License-Identifier: BSD-3-Clause
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Copyright 2019 Mellanox Technologies, Ltd
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Overview of vDPA Drivers Features
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=================================
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This section explains the supported features that are listed in the table below.
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csum
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Device can handle packets with partial checksum.
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guest csum
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Guest can handle packets with partial checksum.
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mac
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Device has given MAC address.
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gso
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Device can handle packets with any GSO type.
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guest tso4
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Guest can receive TSOv4.
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guest tso6
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Guest can receive TSOv6.
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ecn
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Device can receive TSO with ECN.
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ufo
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Device can receive UFO.
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host tso4
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Device can receive TSOv4.
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host tso6
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Device can receive TSOv6.
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mrg rxbuf
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Guest can merge receive buffers.
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ctrl vq
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Control channel is available.
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ctrl rx
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Control channel RX mode support.
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any layout
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Device can handle any descriptor layout.
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guest announce
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Guest can send gratuitous packets.
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mq
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Device supports Receive Flow Steering.
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version 1
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v1.0 compliant.
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log all
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Device can log all write descriptors (live migration).
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indirect desc
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Indirect buffer descriptors support.
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event idx
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Support for avail_idx and used_idx fields.
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mtu
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Host can advise the guest with its maximum supported MTU.
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in_order
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Device can use descriptors in ring order.
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IOMMU platform
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Device support IOMMU addresses.
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packed
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Device support packed virtio queues.
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proto mq
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Support the number of queues query.
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proto log shmfd
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Guest support setting log base.
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proto rarp
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Host can broadcast a fake RARP after live migration.
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proto reply ack
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Host support requested operation status ack.
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proto host notifier
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Host can register memory region based host notifiers.
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proto pagefault
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Slave expose page-fault FD for migration process.
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queue statistics
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Support virtio queue statistics query.
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FreeBSD
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Support FreeBSD.
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Linux
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Support Linux.
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ARMv7
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Support armv7 architecture.
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ARMv8
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Support armv8a (64bit) architecture.
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Power8
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Support PowerPC architecture.
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x86-32
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Support 32bits x86 architecture.
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x86-64
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Support 64bits x86 architecture.
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Usage doc
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Documentation describes usage, In ``doc/guides/vdpadevs/``.
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Design doc
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Documentation describes design. In ``doc/guides/vdpadevs/``.
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Perf doc
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Documentation describes performance values, In ``doc/perf/``.
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.. note::
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Most of the features capabilities should be provided by the drivers via the
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next vDPA operations: ``get_features`` and ``get_protocol_features``.
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References
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==========
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* `OASIS: Virtual I/O Device (VIRTIO) Version 1.1 <https://docs.oasis-open.org/virtio/virtio/v1.1/csprd01/virtio-v1.1-csprd01.html>`_
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* `QEMU: Vhost-user Protocol <https://qemu.weilnetz.de/doc/interop/vhost-user.html>`_
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Features Table
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==============
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.. _table_vdpa_pmd_features:
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.. include:: overview_feature_table.txt
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.. Note::
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Features marked with "P" are partially supported. Refer to the appropriate
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driver guide in the following sections for details.
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