Date: Wed, 26 Feb 2003 19:22:34 +0100 From: Matthias Schuendehuette <msch@snafu.de> To: freebsd-current@freebsd.org Cc: Soeren Schmidt <sos@spider.deepcore.dk> Subject: ATA Tagged Queuing working again? Message-ID: <200302261922.34961.msch@snafu.de>
next in thread | raw e-mail | index | archive | help
Hi Soeren, Hi all, it seems to me that ATA TQ is working again with -current as of yesterday :-) My disk is on "atapci0: <VIA 82C686b UDMA100 controller> port 0xc000-0xc00f \ at device 7.1 on pci0" It's an "ad0: 43979MB <IBM-DTLA-307045> [89355/16/63] at ata0-master UDMA100" Even if it's obviously not reported as TAGGED, it seems to work as such: 'atacontrol cap 0 0' reports: "ATA channel 0, Master, device ad0: ATA/ATAPI revision 5 device model IBM-DTLA-307045 serial number YMDYMH21528 firmware revision TX6OA50C cylinders 16383 heads 16 sectors/track 63 lba supported 90069840 sectors lba48 not supported dma supported overlap not supported Feature Support Enable Value Vendor write cache yes no read ahead yes yes dma queued yes yes 31/1F SMART yes no microcode download no no security yes no power management yes yes advanced power management yes no 0/00 automatic acoustic management yes no 254/FE 128/80" So 'write cache' is disabled and 'dma queued' is enabled, right? At least my 'standard test' (which is a 'tar cvf /dev/null /disk/ports') is not able any more to switch the disk to PIO-Mode - which I tried repeatedly ;-) The only thing I saw were 1,2 stops of about 500ms during the listing of the tar-command but nothing worse happened. With earlier Kernels this indicated a soon lock and switch to PIO... Fine! I hope this stabilizes... -- Ciao/BSD - Matthias Matthias Schuendehuette <msch [at] snafu.de>, Berlin (Germany) Powered by FreeBSD 5.0-CURRENT To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200302261922.34961.msch>