[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: Re: [virtio] [PATCH] virtio-ccw: add adapter interrupt support
Cornelia Huck <email@example.com> writes: > On Tue, 15 Oct 2013 14:13:58 +1030 > Rusty Russell <firstname.lastname@example.org> wrote: > >> Cornelia Huck <email@example.com> writes: >> > Specify a new channel command to set up two-stage indicators as needed >> > for adapter interrupts and describe how adapter interrupts are used >> > for notifications. >> >> Since this presumably isn't in the current implementation, should there >> be a legacy section talking about what happens if it's not supported? >> Or is that implied and I missed it? > > As a device will reject any channel command it doesn't know, we should > be fine. I'll add a legacy section though; a transitional driver should > just fall back to classic indicators. To make sure I understand correctly: a non-legacy device MUST support this, right? So a non-transitional driver can count on it? (I guess the command might fail for other reasons, so it's still nice for the driver to fall back, but not compulsory). Cheers, Rusty.