Date: Fri, 22 Feb 2013 02:11:44 -0800 From: Adrian Chadd <adrian@freebsd.org> To: freebsd-wireless@freebsd.org Subject: [rft] ath - tx/rx chainmask tidyup in preparation for AR9380 support Message-ID: <CAJ-VmomKOhBo%2BKCw99YFBWBVUUK5bV6whvcNkfoj8Ej5pPEgjg@mail.gmail.com>
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Hi, As part of the AR9380 support that's hopefully appearing soon, I finally found the motivation to tidy up how the chainmask handling is done. The summary: * introduce a new HAL method that changes the currently configured TX/RX chainmask; * leave the TX chainmask as 1 for non-HT and the hardware default for HT; * leave the RX chainmask as the hardware default for HT; * push the chainmask decision making into the driver - and have it done before each call to ath_hal_reset() TODO: * upon a channel reset, I need to absolutely make sure that anything that's in the hardware queue gets dequeued and requeued with whatever the new rate control information is. This includes channel width changes and chainmask changes. I'd appreciate it if people running ath(4) on -HEAD would try this out. It shouldn't break non-11n NICs but I should test those out too. http://people.freebsd.org/~adrian/ath/20130222-ath-chainmask-ctrl-1.diff Thanks, Adrian
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