From: Ivan Khoronzhuk <[email protected]> Date: Sat, 15 Jun 2019 14:01:32 +0300
> While data pass suspend, reuse of rx descriptors can be disabled using > channel state & lock from cpdma layer. For this, submit to a channel > has to be disabled using state != "not active" under lock, what is done > with this patch. The same submit is used to fill rx channel while > ndo_open, when channel is idled, so add idled submit routine that > allows to prepare descs for the channel. All this simplifies code and > helps to avoid dormant mode usage and send packets only to active > channels, avoiding potential race in later on changes. Also add missed > sync barrier analogically like in other places after stopping tx > queues. > > Signed-off-by: Ivan Khoronzhuk <[email protected]> Applied.
