Date: Sun, 13 Mar 2011 11:58:40 +0000 (UTC) From: Bernhard Schmidt <bschmidt@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/net80211 ieee80211_scan_sta.c Message-ID: <201103131159.p2DBx3EK002154@repoman.freebsd.org>
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bschmidt 2011-03-13 11:58:40 UTC FreeBSD src repository Modified files: sys/net80211 ieee80211_scan_sta.c Log: SVN rev 219601 on 2011-03-13 11:58:40Z by bschmidt Fix rmax calculation during BSS selection. If multiple networks are available the max bandwidth is one condition used for selecting the "best" BSS. To achieve that we should consider all parameters which affect the max RX rate. This includes 20/40MHz, SGI and the of course the MCS set. If the TX MCS parameters are available we should use those, because an AP announcing support for receiving frames at 450Mbps might only be able to transmit at 150Mbps (1T3R). I haven't seen devices with support for transmitting at higher rates then receiving, so prefering TX over RX information should be safe. While here, remove the hardcoded assumption that MCS15 is the max possible MCS rate, use MCS31 instead which really is the highest rate (according to the 802.11n std). Also, fix a mismatch of an 40MHz/SGI check. Revision Changes Path 1.34 +21 -9 src/sys/net80211/ieee80211_scan_sta.c
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