On 02/10/2017 03:23 PM, Adrian Chadd wrote:
Is it limited on both tx and rx or only one?

Both, as I understand it.  I think maybe we could use the max-tx-rate and 
max-rx-rate
fields in the vht mcs info field to give user-space a clue.

Thanks,
Ben




Adrian

On Feb 10, 2017 2:58 PM, "Ben Greear" <[email protected] 
<mailto:[email protected]>> 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.

    Any ideas?

    Thanks,
    Ben

    --
    Ben Greear <[email protected] <mailto:[email protected]>>
    Candela Technologies Inc  http://www.candelatech.com



--
Ben Greear <[email protected]>
Candela Technologies Inc  http://www.candelatech.com

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