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| author | Zhu Lingshan <lingshan.zhu@intel.com> | 2022-11-25 17:57:24 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-02-21 03:26:55 +0300 |
| commit | 46fc0917bbabb1d5efdf8b903728b9f7fc484ce8 (patch) | |
| tree | 70dd7d0a4293deab64f40ff27a736c07f55183d5 /drivers/vdpa/vdpa_sim | |
| parent | 267000e980895b91841343d203b55b6e188d7c3c (diff) | |
| download | linux-46fc0917bbabb1d5efdf8b903728b9f7fc484ce8.tar.xz | |
vDPA/ifcvf: implement features provisioning
This commit implements features provisioning for ifcvf, that means:
1)checkk whether the provisioned features are supported by
the management device
2)vDPA device only presents selected feature bits
Examples:
a)The management device supported features:
$ vdpa mgmtdev show pci/0000:01:00.5
pci/0000:01:00.5:
supported_classes net
max_supported_vqs 9
dev_features MTU MAC MRG_RXBUF CTRL_VQ MQ ANY_LAYOUT VERSION_1 ACCESS_PLATFORM
b)Provision a vDPA device with all supported features:
$ vdpa dev add name vdpa0 mgmtdev pci/0000:01:00.5
$ vdpa/vdpa dev config show vdpa0
vdpa0: mac 00:e8:ca:11:be:05 link up link_announce false max_vq_pairs 4 mtu 1500
negotiated_features MRG_RXBUF CTRL_VQ MQ VERSION_1 ACCESS_PLATFORM
c)Provision a vDPA device with a subset of the supported features:
$ vdpa dev add name vdpa0 mgmtdev pci/0000:01:00.5 device_features 0x300020020
$ vdpa dev config show vdpa0
mac 00:e8:ca:11:be:05 link up link_announce false
negotiated_features CTRL_VQ VERSION_1 ACCESS_PLATFORM
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20221125145724.1129962-13-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa/vdpa_sim')
0 files changed, 0 insertions, 0 deletions