On Thu, 2013-10-24 at 13:04 -0700, Adrian Chadd wrote: > Hi! > > I have a patch against iwn(4): > > http://people.freebsd.org/~adrian/ath/20131024-iwn-1-fix-xmit-rate-plcp-linkq.diff > > This does a few things: > > * The multi-rate retry ("link quality" stuff) on iwn is a table, and I > think I broke it slightly when I implemented 11n rate control. This > disables it for now, at least until I / someone implements a replacement > table setup and linkq decision. > > * get rid of the rate index stuff - it was used to decide a few things and > it was doing legacy-only rate index lookups. I've just removed it; it's not > needed. > > * Teach the raw transmit path to use the new plcp lookup routine that sets > things up. > > * Correctly implement 11g protection. Right now it was a bit of a hack and > it was not correct for 11a or 11n operation. > > I still get transmit hangs on my 4965 but the "invalid rate" failures have > disappeared. But for some odd reason, the transmits completed but weren't > being marked as failed. I don't yet know why. > > I'm also not sure why transmit is hanging; sometimes it looks like DMA > stalls somehow. > > So - maybe this'll help with various 11n issues on iwn(4), maybe it won't. > I'm not sure yet. I'm trying to avoid taking ownership of iwn(4) but I > rather dislike the occasional 5100/4965 hangs.. > > Thanks, > > > > -adrian
running this now against 11-CURRENT. No issues noted on my adapter (Centrino Advanced-N 6205 [Taylor Peak]). All seems very good. I haven't tried it the office though, and that's the one that's the most interesting I fear. sean
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