[PATCH 3/4] nvme-fabrics: add tp8010 support

[Sagi Grimberg]

> Hi Sagi. Thanks for the code snippet. I just had a question about your comment.
> 
> You say that you don’t see any point to send an event on the disconnect
> because it is async.  I don’t quite understand that part. For example, I've
> observed that when connectivity is lost the kernel will try to connect every
> 10 sec. And it will keep trying to connect 60 times (i.e. 10 min) before
> giving up. Wouldn't sending an "offline" event when connectivity is lost
> give user space apps a heads up that the nvme device may not respond.

Why does userspace need it?

When the host will disconnect it will send event asynchronously, so
userspace cannot reliably do anything before the host disconnects.
Other than that I don't understand what would userspace do with
"offline - I/O is going to fail"...