Re: aic7xxx regression occuring after 2.6.12 final

[Tony Vroon <chainsaw@gentoo.org>]

On Sat, 2005-07-02 at 14:36 -0400, James Bottomley wrote:
> Well, I think this is it.  The drive is actually offering IU and QAS.
> That's fun; I've never seen a u160 drive that could do those before.

The Fujitsu is a U320 unit, just like my Seagate. It's just the
controller that's the limiting factor.

> Although the aic7xxx driver is apparently coded to allow this, it looks
> like the code paths have never been exercised.
> So, although I think this patch will fix up the first error, there's
> probably a long line behind it ...

As you predicted, it tried but gave up.

Output follows:
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
        <Adaptec 29160 Ultra160 SCSI adapter>
        aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs

scsi0: Slave Alloc 0
(scsi0:A:0:0): Sending WDTR 0
(scsi0:A:0:0): Received WDTR 0 filtered to 0
 target0:0:0: FAST-5 SCSI 1.0 MB/s ST (1020 ns, offset 255)
scsi0: target 0 using 8bit transfers
(scsi0:A:0:0): Sending SDTR period 45, offset 0
(scsi0:A:0:0): Received SDTR period 45, offset 0
Filtered to period 0, offset 0
 target0:0:0: asynchronous.
scsi0: target 0 using asynchronous transfers
 Vendor: FUJITSU   Model: MAP3367NP         Rev: 0106
  Type:   Direct-Access                      ANSI SCSI revision: 03
scsi0: Slave Configure 0
 target0:0:0: asynchronous.
scsi0:A:0:0:0: Tagged Queuing enabled.  Depth 32
 target0:0:0: Beginning Domain Validation
(scsi0:A:0:0): Sending WDTR 1
(scsi0:A:0:0): Received WDTR 1 filtered to 1
 target0:0:0: FAST-5 WIDE SCSI 2.0 MB/s ST (1020 ns, offset 255)
scsi0: target 0 using 16bit transfers
(scsi0:A:0:0): Sending SDTR period 45, offset 0
(scsi0:A:0:0): Received SDTR period 45, offset 0
Filtered to period 0, offset 0
 target0:0:0: wide asynchronous
scsi0: target 0 using asynchronous transfers
(scsi0:A:0:0): Sending PPR bus_width 1, period 9, offset 7f, ppr_options
7
(scsi0:A:0:0): Received PPR bus_width 1, period 9, offset 7f,
ppr_options 7
Filtered to width 1, period 9, offset 7f, options 7
 target0:0:0: FAST-80 WIDE SCSI 160.0 Mscsi0: target 0 synchronous at
80.0MHz DT, offset = 0x7
(scsi0:A:0:0): Unexpected busfree in Message-in phease
SEQADDR == 0x16b
 target0:0:0: Write Buffer failure 70000
 target0:0:0: Domain Validation Disabling Information Units
(scsi0:A:0:0): Sending PPR bus_width 1, period 9, offset 7f, ppr_options
6
(scsi0:A:0:0): refuses tagged comands.  Performing non-tagged I/O
 target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s ST IU (12.5 ns, offset 127)
*PC hangs here*

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