[dpdk-dev] [RFC 00/14] mlx5: support SubFunction

[Thomas Monjalon]

10/06/2021 12:33, Ferruh Yigit:
> On 5/27/2021 2:37 PM, Xueming Li wrote:
> > SubFunction [1] is a portion of the PCI device, a SF netdev has its own
> > dedicated queues(txq, rxq). A SF shares PCI level resources with other
> > SFs and/or with its parent PCI function. Auxiliary bus is the
> > fundamental of SF.
> > 
> > This patch set introduces SubFunction support for mlx5 PMD driver
> > including class net, regex, vdpa and compress.
> > 
> 
> There is already an mdev patch, originated from long ago. Aren't subfunctions
> presented as mdev device? If so can't we use mdev for it?

No unfortunately that's different.
mlx5 SF is based on top of auxiliary bus in the kernel/sysfs.