On Wed, Mar 30, 2022 at 10:50:31PM -0700, Christoph Hellwig wrote: > On Wed, Mar 30, 2022 at 04:59:13PM -0700, ira.weiny@xxxxxxxxx wrote: > > From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> > > > > Introduced in a PCI v6.0[1], DOE provides a config space based mailbox > > with standard protocol discovery. Each mailbox is accessed through a > > DOE Extended Capability. > > > > Each DOE mailbox must support the DOE discovery protocol in addition to > > any number of additional protocols. > > > > Define core PCI functionality to manage a single PCI DOE mailbox at a > > defined config space offset. Functionality includes creating, supported > > protocol queries, submit tasks to, and destroying the new state objects. > > > > If interrupts are desired, interrupts vectors should be allocated prior > > to asking for irq's when creating a mailbox object. > > I really don't think this should be built unconditionally and bloat > every single kernel built with PCI support. I can add a Kconfig. Thanks for looking, Ira