Hi helmut,
thanks for the response.
thanks and regards
Vivek
On Wed, 3 Apr 2013 10:09:51 +0200, Helmut Schaa wrote:
> Hi Vivek,
>
> On Wed, Apr 3, 2013 at 10:05 AM, Johannes Berg wrote:
>
>> The driver or rate control algorithm has to
>> take this into account, I'm not certain that all drivers and
>> algorithms
>> do this correctly (yet).
>
> Just as an example, in rt2x00 we just have to set one bit in the tx
> descriptor to
> force the hw to send out a 1-stream RTS to wake up the peer, from
> rt2x00queue.c:
>
> /*
> * MIMO PS should be set to 1 for
> STA's using dynamic SM PS
> * when using more then one tx stream
> (>MCS7).
> */
> if (sta && txdesc->u.ht.mcs > 7 &&
> sta->smps_mode ==
> IEEE80211_SMPS_DYNAMIC)
>
> __set_bit(ENTRY_TXD_HT_MIMO_PS, &txdesc->flags);
>
> HTH,
> Helmut
>
>
> Links:
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