On 3/18/2025 10:20 AM, Jason Gunthorpe wrote:
On Tue, Mar 18, 2025 at 10:01:36AM -0700, Samudrala, Sridhar wrote:
Yes. Today irdma uses exported symbols from i40e and ice and loading irdma
results in both modules to be loaded even when only type of NIC is present
on a system. This series is trying to remove that dependency by using
callbacks.
If you really have two different core drivers that can provide the
same API then I think you are stuck with function pointers :\
It is really weird though, why are their two core drivers that can
provide the same API? Is this because intel keeps rewriting their
driver stack every few years?
This is a known issue due to HW/FW interface changes across multiple
generations of the NICs forcing us to go with separate core drivers.
We are working with HW/FW teams to avoid this in future and going
forward we expect to have idpf/ixd as the 2 drivers (idpf providing the
data path functionality and ixd as the control/data/switchdev port-rep
driver) for all our future FNICs/IPUs.
Leon, Could you approve the callbacks approach considering that irdma
needs to support multiple intel nic core drivers. We would really
appreciate it.
-SridharW
