On Sat, May 6, 2017 at 1:23 AM, Jeffrey Hugo <jh...@codeaurora.org> wrote: > On 5/5/2017 1:22 PM, Jassi Brar wrote: >> >> On Sat, May 6, 2017 at 12:07 AM, Bjorn Andersson >> <bjorn.anders...@linaro.org> wrote: >>> > > There is no way to determine if the remote processor has observed a message, > that does not involve pretty trivial race conditions. > Thanks for chiming in. How is it supposed to work if a client queues more than one request? How do you know when it's ok to overwrite the FIFO and send the next command? Usually if h/w doesn't indicate, we cook up some ack packet for each command. Otherwise the protocol seems badly broken.
If there is really nothing that can be done to check delivery of a message, I'll pick the driver as such. Best of luck :)
