On Tue, 2015-10-13 at 16:36 +0200, Sven Eckelmann wrote: > > The removal of this feature heavily reduced the usefulness of frame > injection when wanting to simulate specific transmission behavior. > Having > rate parsing together with MCS rates and retry support allows a fine > grained selection of the tx behavior of injected frames for these > kind of > tests.
Assuming you have hardware to do it, but that requirement seems fair. > We have required the support for rate parsing (legacy + HT) for some > tests. > It is already known that this may not be the best place to set this > flag > (IEEE80211_TX_CTRL_RATE_INJECT) but the main flags field is already > full. It seems you could perhaps put that into struct ieee80211_tx_data::flags? Or is it required somewhere outside the mac80211 processing? Otherwise I think the place is fine? What issue do you have with it? > There is also the problem that powersave could overwrite the rate > control > fields - so either we disable powersave queueing or find a different > solution. I have no idea what you mean? The flag - as you have it now - should be preserved, no? Perhaps if you moved the flag into tx_data then it wouldn't be, and that's a good argument for not moving it? > But maybe this feature is also not wanted anymore in the mac80211 > driver. Well, I'm open to adding the code if you need it. Could consider VHT as well, I guess. Adding the check to the fast-xmit path seems neither right nor necessary though, since that shouldn't get invoked for injection to start with? johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
