Hello I'm trying to use again mac driver instead of old madwifi driver for atheros cards. I have following problem. On Clients using mac80211 (wpa_supplicant) it's just fine but if you use it with hostapd you have about 1/2 speed as with madwifi. Problem could be also kernel<->wireless driver issue. With madwifi I'm using an old kernel 2.6.23 (voyage-0.5 distribution) and with mac80211 a new kernel 3.8.13 (voyage-0.9.1) Example: 5.5km 5.8GHz link 2xAlix board, 2xWLM54AGP23 card, 2x Hyperlink 27dbi grids, wireless card speed set to 24M to get max. signal on this cards... Signal on both sites is -60 With madwifi driver on both site you get 12.8Mbps/14.5Mbps download/upload madwifi driver on server, mac80211 on client you still get 13.4/13.8Mbps BUT if you use mac80211 on ap master mode with hostap you get only 7Mbps/5.5Mbps. Tried all 4 constellation (old/new, new/old, new/new and old/old) and the issue is only if the hostapt is running with new kernel/mac80211 Same stuff on other links with other cards like CM9. What I have seen is that with madwifi driver the cpu is 90-100% cpu usage with ksoftirqd with mac80211 not... Could this be a kernel interrupt issue? Are there several policies which changed with kernel? Anyone having same issue? Greetings and thanks -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
