lkml.org 
[lkml]   [2002]   [Mar]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: aic7xxx: Slow negotiation?
Date
From
>Hi,
>
>The new aic7xxx driver (in 2.4.17, 2.5.1-pre1 and 2.5.6, at
>least) negotiates only 11.626MB/s transfers from my disks.
>The old one can extract 40MB/s transfers (though the disks
>themselves can only do a little over 20MB/s each).

Go into SCSI-Select and change all of the sync rate values to
something other than you want. Save the changes. Reboot. Go
back into SCSI-Select and change the sync values to what you want.
The driver will then recognize them.

Some MB manufacturers using the aic7895 screwed up the initialation
of the serial eeprom while they were assembling their boards. The
old driver tries to work around this, but the work-around means
converting one of the lower sync rates into meaning "full speed".
I decided that just wasn't safe to put in the new driver.

--
Justin
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:24    [W:0.297 / U:0.188 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site