Re: [PATCH v3 12/16] switchtec_ntb: add link management

[Bjorn Helgaas]

On Tue, Jul 25, 2017 at 02:57:49PM -0600, Logan Gunthorpe wrote:
> switchtec_ntb checks for a link by looking at the shared memory
> window. If the magic number is correct and the otherside indicates
> their link is enabled then we take the link to be up.
> 
> Whenever we change our local link status we send a msg to the
> otherside to check whether it's up and change their status.

s/otherside/other side/ (twice)

> The current status is maintained in a flag so ntb_is_link_up
> can return quickly.
> 
> We utilize Switchtec's link status notifier to also check link changes
> when the switch notices a port changes state.