On Thu, Sep 08, 2016 at 08:25:55 -0700, Yuval Shaia wrote:
> On Wed, Sep 07, 2016 at 07:41:42PM +0000, Adit Ranadive wrote:
> > ...
> >
> > > > +
> > > > + if (pdev_net->vendor != PCI_VENDOR_ID_VMWARE ||
> > > > + pdev_net->device != PCI_DEVICE_ID_VMWARE_VMXNET3) {
> > > > + dev_err(&pdev->dev, "failed to find paired vmxnet3
> > > device\n");
> > > > + pci_dev_put(pdev_net);
> > > > + ret = -ENODEV;
> > > > + goto err_free_cq_ring;
> > > > + }
> > >
> > > Any reason to enforce to this netdev only?
> >
> > Yes, we expose our device to the guest as a dual function PCIe device with
> > Ethernet (VMXNet3) and RDMA (PVRDMA) capabilities. We use the
> VMXNet3
> > netdev to find the Ethernet properties required in the PVRDMA module.
>
> So on a guest with 4 VMWare RDMA devices i will have an extra 4 VMXNet3
> devices.
> And so on.
I wouldn't consider them as extra. They are just part of the PVRDMA device
really. It's just that they aren't integrated with the PVRDMA device in the PCI
space.
Also, wouldn't it be the same if you had 4 RoCE cards on a Linux box?
You would have 4 ethernet devices as well ..
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