Re: Adaptec AHD U320 operating as only U160

I approve of whatever justin does with the aic79xx driver for 7.0.   
Should just be a simple tweak and nothing more.

Scott

Sent from my iPhone

On Feb 17, 2008, at 10:23 AM, "Gelsema, P \(Patrick\) - FreeBSD" <freebsd_at_superhero.nl 
 > wrote:

> On Sun, February 17, 2008 07:33, Justin T. Gibbs wrote:
>> Niki Denev wrote:
>>> I was playing around with DTrace, tracing cam/xpt and the ahd driver
>> and
>>> found out that if i comment the following code :
>>>
>>>        if ((spi3caps & SID_SPI_IUS) == 0)
>>>                spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ;
>>>
>>> at line 6655 in sys/cam/cam_xpt.c my disks again negotiate as U320 :
>>>
>>>  da0 at ahd0 bus 0 target 0 lun 0
>>>  da0: <SEAGATE ST336807LW 0C01> Fixed Direct Access SCSI-3 device
>>>  da0: 320.000MB/s transfers (160.000MHz DT, offset 63, 16bit)
>>>  da0: Command Queueing Enabled
>>>  da0: 35003MB (71687372 512 byte sectors: 255H 63S/T 4462C)
>>
>> The aic79xx driver was not properly exporting its capabilities to
>> CAM.  This has been addressed as of version 1.30 of aic79xx_osm.c.
>> Please let me know if you still have problems.
>
> hulk# uname -a
> FreeBSD hulk.superhero.nl 7.0-RC2 FreeBSD 7.0-RC2 #0: Sun Feb 17  
> 17:58:36
> CET 2008     admin_at_hulk.superhero.nl:/usr/obj/usr/src/sys/GENERIC   
> amd64
>
> hulk# camcontrol inquiry da1
> pass1: <SEAGATE ST336753LW HPS3> Fixed Direct Access SCSI-3 device
> pass1: Serial Number 3HX35KPH000075191ZRW
> pass1: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Command
> Queueing Enabled
>
> Working. Thanks!
>
> Any chance of mfc-ing this to RELENG_7_0 before 7_0 gets released?
>
> Rgds,
>
> Patrick
>
>>
>>>
>>> Unfortunately I began seeing again the "Invalid sequencer interrupt"
>>> messages that i was seeing before(with fbsd 6.2) with Seagate drives
>>> on Adaptec at U320 speeds, and I prey that they are harmless (as  
>>> they
>>> used to be?)
>>
>> While I do not know their root cause, they do appear to be harmless.
>> Do you happen to have your drives in a SES enclosure (on a backplane
>> with a SES chip)?  One user claimed this was only reproducible when
>> a GEM318 SES chip was on the bus.
>>
>> --
>> Justin
>>
>>
>