[dpdk-dev] Does FreeBSD's nic_uio have bind/unbind interface support?

[Bruce Richardson]

On Thu, Jul 16, 2015 at 09:57:03AM +0200, David Marchand wrote:
> Hello Rahul,
> 
> (cc Bruce)
> 
> How about removing this "whitelist" from the nic_uio driver and just rely
> on the hw.nic_uio.bdfs parameter to find out which devices to bind ?
>
Yes, that would be my thinking too. It probably should work that way, much as
linux does.

/Bruce

> 
> -- 
> David Marchand
> 
> On Thu, Jul 16, 2015 at 2:12 PM, Rahul Lakkireddy <
> rahul.lakkireddy at chelsio.com> wrote:
> 
> > Hi All,
> >
> > It seems that on FreeBSD, nic_uio currently only binds the devices matched
> > in
> > rte_pci_dev_ids.h.  On Linux, it's possible to bind any listed device with
> > igb_uio or vfio.
> >
> > The pci device ids supported by cxgbe PMD, maintained in a table, are not
> > part
> > of rte_pci_dev_ids.h.  Hence, Chelsio T5 cards don't get bound to nic_uio,
> > resulting in probe failure on FreeBSD.
> >
> > On manually adding Chelsio pci device id to rte_pci_dev_ids.h, the Chelsio
> > T5
> > card gets detected fine on FreeBSD.
> >
> > So, we would like to know and understand if adding all supported Chelsio
> > pci
> > device ids to rte_pci_dev_ids.h is the correct way of doing things for
> > FreeBSD?
> >
> > Any suggestions are appreciated.
> >
> > Thanks,
> > Rahul
> >