Date: Sat, 09 Dec 2006 08:49:35 -0800 From: Sam Leffler <sam@errno.com> To: Wilko Bulte <wb@freebie.xs4all.nl> Cc: freebsd-current@FreeBSD.ORG Subject: Re: CFT: new ath hal Message-ID: <457AE91F.5040506@errno.com> In-Reply-To: <20061209102318.GA4373@freebie.xs4all.nl> References: <457719CF.3040402@errno.com> <20061207000050.GA3667@freebie.xs4all.nl> <45775DB7.1000605@errno.com> <20061209102318.GA4373@freebie.xs4all.nl>
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Wilko Bulte wrote: > On Wed, Dec 06, 2006 at 04:17:59PM -0800, Sam Leffler wrote.. >> Wilko Bulte wrote: >>> On Wed, Dec 06, 2006 at 11:28:15AM -0800, Sam Leffler wrote.. >>>> I've placed a new hal out for testing. I'd like to commit it after more >>>> folks work with it so feedback would be helpful. >>>> >>>> http://people.freebsd.org/~sam/ath_hal-20061205.tgz >>>> >>>> There are numerous small bugs fixed in this version but the main change >>>> is a split of the descriptor state so that s/w state can be placed in >>>> cached memory when h/w state is in uncached memory. This results in >>>> noticeable performance gains on certain architectures. >>>> >>>> To use this hal you must patch the driver and rate control modules with >>>> this: >>>> >>>> http://people.freebsd.org/~sam/ath-20061205.patch >>> Seems to work fine on my laptop: >>> >>> ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413) >>> ath0: <Atheros 5212> mem 0xd0210000-0xd021ffff at device 4.0 on pci2 >>> ath0: using obsoleted if_watchdog interface >>> ath0: Ethernet address: 00:80:48:7e:16:96 >>> ath0: mac 7.8 phy 4.5 radio 5.6 >>> >>> Anything special you want to have tested? I use this laptop daily >>> so it will see 'runtime' anyway.. >> I mostly care about regressions. The code base has been stable for a >> while so it's unlikely you'll see any obvious differences. > > Well.. I now found an obvious difference. I tried playing some avi files > from a filesystem mounted via NFS. With the previous hal etc this > runs streaming video (ok, very seldom there is a small hiccup). With the > latest hal & patch I cannot get streaming avi play at all. All of > this is with identical hardware, and keeping the laptop and AP at the same > locations. Things like scp report the same speeds for both old and new > hal/driver. > > What I found interesting is the beaconing difference. No idea if this > is related. > > Working: > > wb@chuck ~: athstats > 64678 tx management frames > 16 tx frames discarded prior to association > 49 tx stopped 'cuz no xmit buffer > 3268 tx failed 'cuz bogus xmit rate > 14 tx frames with rts enabled > 64680 tx frames with an alternate rate > 463 tx frames with 11g protection > 2644 rx failed 'cuz of FIFO overrun > 1 rx failed 'cuz frame too short > 64531 rx management frames > 2324 beacons transmitted > 25 periodic calibration failures > 610 rate control raised xmit rate > 5 rate control dropped xmit rate > 4 switched default/rx antenna > 1 tx used alternate antenna > Antenna profile: > [2] tx 145 rx 1 > [3] tx 64548 rx 67527 > > Not working: > > wb@chuck ~: athstats > 23 interrupts coalesced > 7562 tx management frames > 16 tx frames discarded prior to association > 49 tx stopped 'cuz no xmit buffer > 610 tx failed 'cuz bogus xmit rate > 14 tx frames with rts enabled > 7564 tx frames with an alternate rate > 56 tx frames with 11g protection > 1585 rx failed 'cuz of FIFO overrun > 7515 rx management frames > 1822627093 beacons transmitted > 24 periodic calibration failures > 377 rate control raised xmit rate > 2 rate control dropped xmit rate > 1 tx used alternate antenna > Antenna profile: > [2] tx 16 rx 0 > [3] tx 7561 rx 9385 > wb@chuck ~: > So somehow your ap appears to be sending beacon frames continuously; very odd. What was the previous hal version that worked (ap side only) and how is the ap setup. Just to be sure please provide the mac+phy revs for the card in the ap machine. I'm guessing this is a soekris box based on the # of FIFO overrun errors? Your original response referred to a laptop. Sam
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