Re: [net-next V9 03/14] devlink: Support add and delete devlink port

On 1/21/2021 7:31 PM, Parav Pandit wrote:

quoted

From: Samudrala, Sridhar <sridhar.samudrala@intel.com>
Sent: Friday, January 22, 2021 2:21 AM

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$ devlink port show
pci/0000:06:00.0/65535: type eth netdev ens2f0np0 flavour physical
port 0 splittable false

$ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88

Do we need to specify pfnum when adding a SF port? Isn't this redundant?
Isn't there a 1:1 mapping between the pci device and a pfnum?

No. it's not entirely redundant.
Currently in most cases today it is same function number as that of PCI device.

Netronome has one devlink instance that represents multiple PCI devices.

I am curious how this is done. I looked at doing this for ice but it
became incredibly problematic because of interacting across multiple
PCIe drivers.. Hmm. I'll have to go look at how this is handled in the
netronome driver.

Thanks,
Jake