Date: Fri, 29 Sep 2000 14:53:50 +0200 From: Andre Albsmeier <andre@akademie3000.de> To: Mario Sergio Fujikawa Ferreira <lioux@uol.com.br> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: MFC of ahc driver updates (long-ish) Message-ID: <20000929145350.A475@schlappy.mobile.tld> In-Reply-To: <20000924173458.A713@Fedaykin.here>; from lioux@uol.com.br on Sun, Sep 24, 2000 at 05:34:58PM -0300 References: <20000924173458.A713@Fedaykin.here>
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On Sun, 24-Sep-2000 at 17:34:58 -0300, Mario Sergio Fujikawa Ferreira wrote: > Hi, > > >> cd0 at ahc1 bus 0 target 3 lun 0 > >> cd0: <PLEXTOR CD-ROM PX-40TS 1.10> Removable CD-ROM SCSI-2 device > >> cd0: 3.300MB/s transfers > >> cd0: Attempt to query device size failed: NOT READY, Medium not present - > >> tray closed > >> > >> It seems as if the Plextor CD-ROM is the culprit, and judging from > >> the displayed transfer speed, it does seem to be failing to negotiate > >> properly. It should be negotiating at 20 MHz (which is where > >> it was negotiated by the 4.1-RELEASE GENERIC kernel). > > > >You might want to know that there are firmware updates on > >the plextor site for the PX-40TS. Sorry, don't have the > >URL here... > > This is a dmesg snippet from my -stable system. > > ... > ahc0: aic7870 Single Channel A, SCSI Id=7, 16/255 SCBs > [snip] > cd0 at ahc0 bus 0 target 5 lun 0 > cd0: <PLEXTOR CD-ROM PX-40TS 1.04> Removable CD-ROM SCSI-2 device > cd0: 10.000MB/s transfers (10.000MHz, offset 15) > [snip] > > From your email, should I understand that I could > be running my Plextor at 20Mhz? Are you sure this is > accurate? By the way, I am running yesterday's stable > and the latest plextor firmware. [Took a while to answer but I am in the Dominican Republic at the moment] The Plextor will run at 20MHz, IIRC, but not your controller. Do a "man ahc" and search for 7870 two times. You will find it listed as a 10MHz controller. I doubt you will find any device negotating at 20MHz on your machine :-) Regarding the Plextor, I can tell you if it is running at 20MHz as soon as I am back next week but I am 99% sure it does... -Andre To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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