Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Fri, 10 Apr 2020 09:45:09 +0200 | Subject | Re: [PATCH V9 8/9] vdpasim: vDPA device simulator |
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Hi Jason,
On Thu, Mar 26, 2020 at 3:07 PM Jason Wang <jasowang@redhat.com> wrote: > This patch implements a software vDPA networking device. The datapath > is implemented through vringh and workqueue. The device has an on-chip > IOMMU which translates IOVA to PA. For kernel virtio drivers, vDPA > simulator driver provides dma_ops. For vhost driers, set_map() methods > of vdpa_config_ops is implemented to accept mappings from vhost. > > Currently, vDPA device simulator will loopback TX traffic to RX. So > the main use case for the device is vDPA feature testing, prototyping > and development. > > Note, there's no management API implemented, a vDPA device will be > registered once the module is probed. We need to handle this in the > future development. > > Signed-off-by: Jason Wang <jasowang@redhat.com>
This is now commit 2c53d0f64c06f458 ("vdpasim: vDPA device simulator").
> --- a/drivers/virtio/vdpa/Kconfig > +++ b/drivers/virtio/vdpa/Kconfig > @@ -5,3 +5,22 @@ config VDPA > Enable this module to support vDPA device that uses a > datapath which complies with virtio specifications with > vendor specific control path. > + > +menuconfig VDPA_MENU > + bool "VDPA drivers" > + default n
* * VDPA drivers * VDPA drivers (VDPA_MENU) [N/y/?] (NEW) ?
There is no help available for this option. Symbol: VDPA_MENU [=n] Type : bool Defined at drivers/vdpa/Kconfig:9 Prompt: VDPA drivers Location: -> Device Drivers
I think this deserves a help text, so users know if they want to enable this option or not.
I had a quick look, but couldn't find the meaning of "vdpa" in the whole kernel source tree.
Thanks!
> + > +if VDPA_MENU > + > +config VDPA_SIM > + tristate "vDPA device simulator" > + depends on RUNTIME_TESTING_MENU > + select VDPA > + select VHOST_RING > + default n > + help > + vDPA networking device simulator which loop TX traffic back > + to RX. This device is used for testing, prototyping and > + development of vDPA. > + > +endif # VDPA_MENU
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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