Re: [PATCH v1 0/3] Add missing ethdev driver support

On Thu, 28 Jan 2016 08:48:12 +0000
Remy Horton [off-list ref] wrote:

Several rte_eth_dev_* functions are currently only supported
by the ixgbe NIC driver. This patchset adds driver support
for some of these functions to the i40e, virtio, and vmxnet3
drivers.

It is good to make drivers more complete and compatible, but unless
the virtual driver has some useful data I can't see the point of providing
these functions in this case. The base infrastructure (rte_ethdev) should
deal with by returning not supported error (or all zeros); rather than
creating more code in other drivers for no real gain.