Messages in this thread | | | From | e-double@iname ... | Date | Mon, 9 Apr 2001 23:14:29 -0400 (EDT) | Subject | AIC7XXX oddities |
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Greetings, I've been using the new aic7xxx driver, and updating frequently from Justin's site. I'm at v6.1.11 now with kernel 2.4.3 and still experiencing some odd behaviour. For example, I start as such on BUS 0 (an aic-29160): Channel A Target 5 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 5 Lun 0 Settings Commands Queued 13199 Commands Active 0 Command Openings 49 Max Tagged Openings 253 Device Queue Frozen Count 0 After an invocation of cdrecord --scanbus dmesg reveals this on BUS1 (an aha-2940u2w): (scsi1:A:1): 5.000MB/s transfers (5.000MHz, offset 15) (scsi1:A:6): 20.000MB/s transfers (20.000MHz, offset 15) (locating burner at 6, and zip at 5)
An invocation of hdparm -Tt /dev/sda (id 5) does this:
(scsi1:A:1): 5.000MB/s transfers (5.000MHz, offset 15) (scsi1:A:6): 20.000MB/s transfers (20.000MHz, offset 15) (scsi0:A:5): 3.300MB/s transfers
cat /proc/scsi/aic7xxx/0 : Channel A Target 5 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 3.300MB/s transfers Curr: 3.300MB/s transfers Channel A Target 5 Lun 0 Settings Commands Queued 16817 Commands Active 0 Command Openings 49 Max Tagged Openings 253 Device Queue Frozen Count 0
Target 5 has dropped to 3.300MB/s ??
thanks,
Ethan W.
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