Re: [PATCH] NVMe: Add a character device for each nvme device

Jeff Garzik
2012-07-27T20:42:08Z

On 07/27/2012 04:26 PM, Matthew Wilcox wrote:
> Maybe we should design such a mechanism, but maybe we shouldn't ... as we
> find common things to do, we tend to move those to sysfs, not ioctls,
> and the kinds of commands that are being sent here are essentially
> vendor-specific NVMe commands; it's not clear they'd fit neatly into a
> generic mechanism.

You're delivering arbitrary packets to the device from userspace, and it
is returning arbitrary packets to userspace.

This is a familiar pattern... It is quite analagous to "send
vendor-specific commands from userspace to a drive"

Jeff