On Tue, Apr 16, 2019 at 11:17:53AM +0200, Arend Van Spriel wrote: > On 4/16/2019 10:37 AM, Johannes Berg wrote: > > It is true because we have an entire buffering layer in mac80211 (in > > this case at least) and never push back to the stack. > > Ok, so the crux is the "never push back to the stack" part? Well, the > internal TXQ and how that is used is obviously enabling that ;-)
So assuming that these drivers all have a TX queue length of zero and therefore do not make use of Linux queueing disciplines then yes techincally LLTX is fine. However, I must say that it is much better to provide real congestion feedback to the stack when you can because otherwise things like UDP may fall apart. Cheers, -- Email: Herbert Xu <[email protected]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
