Adaptec AHD U320 operating as only U160

[JoaoBR]

On Sunday 17 February 2008 14:23:41 Gelsema, P (Patrick) - FreeBSD 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)
> >


it is not working on Tyan MBs embedded u320 Adaptec, I still get with complete 
world and kernel build on sources from this night

#d3a 0L:a un<cShEeAdG!AT
E ST373207LW 0005> Fixed Direct Access SCSI-3 device
da0: 160.000MB/s transfers (80.000MHzS MDPT:,  AoPf fCsPeUt  #623 ,L 
au1n6cbhietd)!

da0: Command Queueing Enabled
da0: 70007MB (143374744 512 byte sectors: 255H 63S/T 8924C)
da1 at ahd0 bus 0 target 1 lun 0
da1: <SEAGATE ST373207LW 0003> Fixed Direct Access SCSI-3 device
da1: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
da1: Command Queueing Enabled
da1: 70007MB (143374744 512 byte sectors: 255H 63S/T 8924C)
Trying to mount root from ufs:/dev/da0s1a


It is this controller:

ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0x9000-0x90ff,0x8800-0x88ff 
mem 0xfc9fc000-0xfc9fdfff irq 24 at device 6.0 on pci2
ahd0: [ITHREAD]
aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs
ahd1: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0x9800-0x98ff,0x9400-0x94ff 
mem 0xfc9fe000-0xfc9fffff irq 25 at device 6.1 on pci2
ahd1: [ITHREAD]
aic7902: Ultra320 Wide Channel B, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs

which on first site seems to be the same on Supermicros MB:

ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0xa800-0xa8ff,0xa400-0xa4ff 
mem 0xfc9fe000-0xfc9fffff irq 24 at device 3.0 on pci2
ahd0: [ITHREAD]
aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs
ahd1: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0xa000-0xa0ff,0xac00-0xacff 
mem 0xfc9fc000-0xfc9fdfff irq 25 at device 3.1 on pci2
ahd1: [ITHREAD]
aic7902: Ultra320 Wide Channel B, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs





But I can confirm that it seems to be ok on 29320 Adaptec cards and on 
Supermicro embedded U320 Adaptec


-- 

João







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