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| author | Michael S. Tsirkin <mst@redhat.com> | 2024-08-01 03:44:16 -0400 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-08-01 04:32:00 -0400 |
| commit | e57030e8dc071424b0fc35c0e0cf2898e53d5e81 (patch) | |
| tree | 052d1a49f997290105447dcc44cee9a341f16125 | |
| parent | 024d046bf41b5256adec671085bcee767a6da125 (diff) | |
| download | qemu-e57030e8dc071424b0fc35c0e0cf2898e53d5e81.zip qemu-e57030e8dc071424b0fc35c0e0cf2898e53d5e81.tar.gz qemu-e57030e8dc071424b0fc35c0e0cf2898e53d5e81.tar.bz2 | |
Revert "docs: Document composable SR-IOV device"
This reverts commit d6f40c95b35bd380340b698e4306704fe22a5d68.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | docs/system/index.rst | 1 | ||||
| -rw-r--r-- | docs/system/sriov.rst | 36 |
3 files changed, 0 insertions, 38 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 72b3c67..e34c2bd 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2011,7 +2011,6 @@ F: hw/pci-bridge/* F: qapi/pci.json F: docs/pci* F: docs/specs/*pci* -F: docs/system/sriov.rst PCIE DOE M: Huai-Cheng Kuo <hchkuo@avery-design.com.tw> diff --git a/docs/system/index.rst b/docs/system/index.rst index 718e9d3..c21065e 100644 --- a/docs/system/index.rst +++ b/docs/system/index.rst @@ -39,4 +39,3 @@ or Hypervisor.Framework. multi-process confidential-guest-support vm-templating - sriov diff --git a/docs/system/sriov.rst b/docs/system/sriov.rst deleted file mode 100644 index a851a66..0000000 --- a/docs/system/sriov.rst +++ /dev/null @@ -1,36 +0,0 @@ -.. SPDX-License-Identifier: GPL-2.0-or-later - -Compsable SR-IOV device -======================= - -SR-IOV (Single Root I/O Virtualization) is an optional extended capability of a -PCI Express device. It allows a single physical function (PF) to appear as -multiple virtual functions (VFs) for the main purpose of eliminating software -overhead in I/O from virtual machines. - -There are devices with predefined SR-IOV configurations, but it is also possible -to compose an SR-IOV device yourself. Composing an SR-IOV device is currently -only supported by virtio-net-pci. - -Users can configure an SR-IOV-capable virtio-net device by adding -virtio-net-pci functions to a bus. Below is a command line example: - -.. code-block:: shell - - -netdev user,id=n -netdev user,id=o - -netdev user,id=p -netdev user,id=q - -device pcie-root-port,id=b - -device virtio-net-pci,bus=b,addr=0x0.0x3,netdev=q,sriov-pf=f - -device virtio-net-pci,bus=b,addr=0x0.0x2,netdev=p,sriov-pf=f - -device virtio-net-pci,bus=b,addr=0x0.0x1,netdev=o,sriov-pf=f - -device virtio-net-pci,bus=b,addr=0x0.0x0,netdev=n,id=f - -The VFs specify the paired PF with ``sriov-pf`` property. The PF must be -added after all VFs. It is the user's responsibility to ensure that VFs have -function numbers larger than one of the PF, and that the function numbers -have a consistent stride. - -You may also need to perform additional steps to activate the SR-IOV feature on -your guest. For Linux, refer to [1]_. - -.. [1] https://docs.kernel.org/PCI/pci-iov-howto.html |