On Fri, 2018-10-12 at 10:23 +0300, Kevin Wilson wrote: > My question is about the i40eiw driver: > https://elixir.bootlin.com/linux/latest/source/drivers/infiniband/hw/i40iw > > There are different flavors of I40E devices, like I40E 10GB, I40E > 25GB, I40E100GB, etc. > Does the i40eiw support only a specific I40E device (or two or more > specific I40E devices)? or does it supports all I40E devices ? > > In case the answer is the first - which are the I40E devices which > the > i40eiw supports ?
The i40iw (RDMA driver) does not support all devices that are supported by the i40e driver. The only a limited number of Fort Park (newer devices) support RDMA. The RDMA driver (i40iw) uses i40e_devids.h in user space to decide which PCI IDs to support. I have added Chien Tung to this email thread, as he is one of the developers on the RDMA driver team to help answer any further RDMA driver questions.
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