Date: Sun, 11 Sep 2011 17:07:33 +0000 (UTC) From: Adrian Chadd <adrian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r225481 - user/adrian/if_ath_tx/sys/dev/ath Message-ID: <201109111707.p8BH7YbA088054@svn.freebsd.org>
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Author: adrian Date: Sun Sep 11 17:07:33 2011 New Revision: 225481 URL: http://svn.freebsd.org/changeset/base/225481 Log: Add another thing to research Modified: user/adrian/if_ath_tx/sys/dev/ath/README Modified: user/adrian/if_ath_tx/sys/dev/ath/README ============================================================================== --- user/adrian/if_ath_tx/sys/dev/ath/README Sun Sep 11 16:52:07 2011 (r225480) +++ user/adrian/if_ath_tx/sys/dev/ath/README Sun Sep 11 17:07:33 2011 (r225481) @@ -1,6 +1,13 @@ Things to debug! ---------------- +The txqactive bitmap (txeol, txurn, txok, etc) is setup at txq create +time to a set of values, then it seems after a channel scan all of the +bits are set to 1. I'm not yet sure why. Go in and fix these. +Note that ath9k caches the IMR_S2 value and rewrites it where needed. +It's possible that after a channel scan, these values are "initial" +values rather than the values setup by the if_ath driver. + < adrian> oh that's a fun bug. if I trigger A-MPDU using an aggregate UDP TX, I'm out of buffers < adrian> (as they're all locked up in pending queues) < adrian> so I can't send the ADDBA. :P
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