On Saturday 27 November 2010 02:31:53 Nick Kossifidis wrote: > When we convert to core clock units it's what we should do, all > timings should change the same way. I don't know what this > aPHY-RX-START-Delay is but if it changes that way we can use absolute > values as we do for slot time and sifs.
Although aPHY-RX-START-Delay is specified in the standard, it's not needed on Atheros hardware, probably the hardware starts the timeout countdown after it switches to RX mode (so aPHY-RX-START-Delay is added implicitly). See my discussion with Felix Fietkau a year ago, starting here: http://www.mail-archive.com/ath5k-devel@lists.ath5k.org/msg02810.html The calculation used in set_coverage_class is also the same as the one in Madwifi driver. When I wrote that code, I intentionally kept the old initvals when no coverage class was set to prevent regressions (the ACK timeout in initivals is larger than the one for coverage class 0, so a long distance link that worked before would break). Maybe I was too careful. Lukas Turek
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