Re: Adaptec AHD U320 operating as only U160 (take care with this hack!)

On Monday 18 February 2008 05:01:01 JoaoBR wrote:
> 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)
>



take care with this hack because at least on Tyans and SM Mbs this hack does 
nothing good and cause continuous card dumps and some machines do not boot 
correctly (seems it depends on kind of disk installed), it is not usable 
here!


the only card which stands this is the pci-x adaptec 29320




> 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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