On 2021-02-15 05:54, Kalle Valo wrote: > Felix Fietkau <nbd@xxxxxxxx> writes: > >> When transmitting to a receiver in dynamic SMPS mode, all transmissions that >> use multiple spatial streams need to be sent using CTS-to-self or RTS/CTS to >> give the receiver's extra chains some time to wake up. >> This fixes the tx rate getting stuck at <= MCS7 for some clients, especially >> Intel ones, which make aggressive use of SMPS. >> >> Cc: stable@xxxxxxxxxxxxxxx >> Reported-by: Martin Kennedy <hurricos@xxxxxxxxx> >> Signed-off-by: Felix Fietkau <nbd@xxxxxxxx> > > No Fixes tag so I assume this is not a regression? > > Should this go to v5.12 or -next? I guess that depends how much testing > this patch has got. I'd prefer v5.12. I got confirmation that the patch makes a big difference in throughput with Intel clients (makes tx with MCS > 7 work), and I think there is very little potential for regressions. - Felix
