On Wed, Jan 31, 2024 at 11:17:31AM -0800, Chris Leech wrote:

Add a UIO memtype specifically for sharing dma_alloc_coherent
memory with userspace, backed by dma_mmap_coherent.

This is mainly for the bnx2/bnx2x/bnx2i "cnic" interface, although there
are a few other uio drivers which map dma_alloc_coherent memory and
could be converted to use dma_mmap_coherent as well.

What other drivers could use this?  Patches doing the conversion would
be welcome, otherwise, again, I am very loath to take this
one-off-change for just a single driver that shouldn't be doing this in
the first place :)

thanks,

greg k-h