[openib-general] [PATCH] Initial checkin of userspace MAD access

[Johannes Erdfelt]

On Wed, Nov 03, 2004, Roland Dreier <roland at topspin.com> wrote:
> By the way, buried down at the end of the patch is some documentation
> about creating device files:
> 
> +/dev files
> +
> +  To create the appropriate character device files automatically with
> +  udev, a rule like
> +
> +    KERNEL="umad*", NAME="infiniband/%s{ibdev}/umad%s{port}"
> +
> +  can be used.  This will create nodes such as /dev/infiniband/mthca0/umad1
> +  for port 1 of device mthca0.
> 
> Do the names /dev/infiniband/mthca0/umad1 and so on make sense to
> people?  I thought that userspace verbs support would probably use a
> file like /dev/infiniband/mthca0/verbs, etc.
> 
> In any case, now is probably the time to object before we have legacy
> issues to worry about....

Does the device name need to have the HCA driver name in it? Also, the u
in umad is implied.

Wouldn't it be more appropriate to do something like this:

/dev/infiniband/hca0/mad1

or maybe even:

/dev/ib/hca0/mad1

JE