Hi, we investigate a possibility to enrich the ALM with information about a possible delay caused by buffering in all nodes along a mesh path. This could better reflect the idea of an real "airtime" of a new send frame. Therefore I'm searching for a general way to get the number of outstanding frames of an mac80211 based wifi-driver. I think it could be possible to count the number of one of the skb_queues in struct ieee80211_local. Maybe there is also a possibility to use the new codel infrastructure in mac80211 to get a impression about buffered frames of a wiphy, but I think this would only work on flow end-points, but we need a metric estimation on every node. Do anybody know whether I'm right at this point ? We will test our implementation on ath9k cards as well as on mac80211_hwsim simulation, therefore it should work at least on this both :-) The nice thing could be, to combine end point regulation methods with regulating parameters on nodes on the forwarding path to get better throughput in mesh networks. kind regards -- M.Sc. Benjamin Beichler Universität Rostock, Fakultät für Informatik und Elektrotechnik Institut für Angewandte Mikroelektronik und Datentechnik University of Rostock, Department of CS and EE Institute of Applied Microelectronics and CE Richard-Wagner-Straße 31 18119 Rostock Deutschland/Germany phone: +49 (0) 381 498 - 7278 email: Benjamin.Beichler@xxxxxxxxxxxxxx www: http://www.imd.uni-rostock.de/
