Jason Wang
2021-Feb-04 03:16 UTC
[PATCH iproute2-next v3 0/5] Add vdpa device management tool
On 2021/2/2 ??6:35, Parav Pandit wrote:> Linux vdpa interface allows vdpa device management functionality. > This includes adding, removing, querying vdpa devices. > > vdpa interface also includes showing supported management devices > which support such operations. > > This patchset includes kernel uapi headers and a vdpa tool. > > examples: > > $ vdpa mgmtdev show > vdpasim: > supported_classes net > > $ vdpa mgmtdev show -jp > { > "show": { > "vdpasim": { > "supported_classes": [ "net" ] > } > } > } > > Create a vdpa device of type networking named as "foo2" from > the management device vdpasim_net: > > $ vdpa dev add mgmtdev vdpasim_net name foo2 > > Show the newly created vdpa device by its name: > $ vdpa dev show foo2 > foo2: type network mgmtdev vdpasim_net vendor_id 0 max_vqs 2 max_vq_size 256 > > $ vdpa dev show foo2 -jp > { > "dev": { > "foo2": { > "type": "network", > "mgmtdev": "vdpasim_net", > "vendor_id": 0, > "max_vqs": 2, > "max_vq_size": 256 > } > } > } > > Delete the vdpa device after its use: > $ vdpa dev del foo2 > > Patch summary: > Patch-1 adds kernel headers for vdpa subsystem > Patch-2 adds library routines for indent handling > Patch-3 adds library routines for generic socket communication > PAtch-4 adds library routine for number to string mapping > Patch-5 adds vdpa tool > > Kernel headers are from the vhost kernel tree [1] from branch linux-next. > > [1] https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git > > ---Adding Adrian to see if this looks good for k8s integration. Thanks
Adrian Moreno
2021-Feb-04 11:15 UTC
[PATCH iproute2-next v3 0/5] Add vdpa device management tool
Sorry I have not followed this work as close as I would have wanted. Some questions below. On 2/4/21 4:16 AM, Jason Wang wrote:> > On 2021/2/2 ??6:35, Parav Pandit wrote: >> Linux vdpa interface allows vdpa device management functionality. >> This includes adding, removing, querying vdpa devices. >> >> vdpa interface also includes showing supported management devices >> which support such operations. >> >> This patchset includes kernel uapi headers and a vdpa tool. >> >> examples: >> >> $ vdpa mgmtdev show >> vdpasim: >> ?? supported_classes net >> >> $ vdpa mgmtdev show -jp >> { >> ???? "show": { >> ???????? "vdpasim": { >> ???????????? "supported_classes": [ "net" ] >> ???????? } >> ???? } >> } >>How can a user establish the relationship between a mgmtdev and it's parent device (pci vf, sf, etc)?>> Create a vdpa device of type networking named as "foo2" from >> the management device vdpasim_net: >> >> $ vdpa dev add mgmtdev vdpasim_net name foo2 >>I guess this command will accept a 'type' parameter once more supported_classes are added? Also, will this tool also handle the vdpa driver binding or will the user handle that through the vdpa bus' sysfs interface?>> Show the newly created vdpa device by its name: >> $ vdpa dev show foo2 >> foo2: type network mgmtdev vdpasim_net vendor_id 0 max_vqs 2 max_vq_size 256 >> >> $ vdpa dev show foo2 -jp >> { >> ???? "dev": { >> ???????? "foo2": { >> ???????????? "type": "network", >> ???????????? "mgmtdev": "vdpasim_net", >> ???????????? "vendor_id": 0, >> ???????????? "max_vqs": 2, >> ???????????? "max_vq_size": 256 >> ???????? } >> ???? } >> } >> >> Delete the vdpa device after its use: >> $ vdpa dev del foo2 >> >> Patch summary: >> Patch-1 adds kernel headers for vdpa subsystem >> Patch-2 adds library routines for indent handling >> Patch-3 adds library routines for generic socket communication >> PAtch-4 adds library routine for number to string mapping >> Patch-5 adds vdpa tool >> >> Kernel headers are from the vhost kernel tree [1] from branch linux-next. >> >> [1] https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git >> >> --- > > > Adding Adrian to see if this looks good for k8s integration. > > Thanks >Thanks -- Adri?n Moreno