Date: Sat, 9 Dec 2006 11:23:18 +0100 From: Wilko Bulte <wb@freebie.xs4all.nl> To: Sam Leffler <sam@errno.com> Cc: freebsd-current@FreeBSD.ORG Subject: Re: CFT: new ath hal Message-ID: <20061209102318.GA4373@freebie.xs4all.nl> In-Reply-To: <45775DB7.1000605@errno.com> References: <457719CF.3040402@errno.com> <20061207000050.GA3667@freebie.xs4all.nl> <45775DB7.1000605@errno.com>
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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 ~: -- Wilko Bulte wilko@FreeBSD.org
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