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Re: [RFC] mac80211: add rate to ieee80211_tx_status

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On Feb 4, 2008 1:14 PM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote:
> Tomas Winkler wrote:
>
> > No I won't we add rate flags which are part of spec anyway  and then
> > plcp rate it self will be in bitrate.
>
> >         IEEE80211_RATE_HT_GF  =  1<<5,  /* green field */
> >         IEEE80211_RATE_HT_SGI =  1<<5,  /* short guarding interval */
> >         IEEE80211_RATE_HT_FAT =  1<<6, /* 40Mhz Channel */
> >         IEEE80211_RATE_HT_SISO        =  1<<7,
> >         IEEE80211_RATE_HT_MIMO        =  1<<8,
> >         IEEE80211_RATE_ANT_A   =  1<<8,    /* Number of antenna - no
> > radio goes over 3 so 4 will be enough */
> >         IEEE80211_RATE_ANT_B   =  1<<8,
> >         IEEE80211_RATE_ANT_C   =  1<<8,
> >         IEEE80211_RATE_ANT_D   =  1<<8,
>
> Ah, I see. Since these flags aren't really rate specific, so shouldn't
> they rather be part of the TX control, TX status and RX status directly
> rather than inside the rate? The flags within the bitrate are meant to
> indicate hardware capabilities and/or spec flags (like ERP) not control
> flags like these are.

No, they are rate specific the are not modulation specific, each of
them can change from packet to packet.
Thanks
Tomas

> johannes
>
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