.. or give us a legit way to acquire the 2016 spec? :) Curious implementers want to know! -a On 13 February 2017 at 11:21, Ben Greear <greearb@xxxxxxxxxxxxxxx> wrote: > On 02/12/2017 11:06 PM, Johannes Berg wrote: >> >> On Fri, 2017-02-10 at 14:58 -0800, Ben Greear wrote: >>> >>> So, it appears that the ath10k QCA9984 4x4 160Mhz chip can do 4x4 >>> MIMO at VHT80, but >>> it can do only 2x2 MIMO at VHT160/80+80. >>> >>> When configuring a peer, we need to tell the firmware the number of >>> spatial streams >>> of the peer at VHT160 and at VHT80 and lower. They are not the same >>> value. >>> >>> I cannot think of any standard way to get this information based on >>> VHT capabilities and such. Currently, one could just assume VHT160 >>> NSS is 1/2 of the VHT80 NSS, but that is unlikely to be true for all >>> vendors. >> >> >> This was recently added to the VHT capabilities in the spec, see Table >> 9-250 in 802.11-2016. >> >> johannes >> > > I don't have that spec...maybe you could post a patch that adds that flag > and/or other fields to the appropriate header files? I can attempt to > add support to ath10k after that... > > > Thanks, > Ben > > -- > Ben Greear <greearb@xxxxxxxxxxxxxxx> > Candela Technologies Inc http://www.candelatech.com >
