2.4.21-rc3 : 1394 : Cannot detect hard drive(s?).

2.4.21-rc3 : 1394 : Cannot detect hard drive(s?).

[Kyuma Ohta]

Hi,
After 2.4.21-rc2,driver of IEEE1394 storage ( a.k.a. sbp2 ) is not able to
detect IEEE1394 Hard Drive.

Message of /proc/scsi/sbp2/2 at 2.4.21-rc1 is below:
IEEE-1394 SBP-2 protocol driver (host: ohci1394)
$Rev: 878 $ James Goodwin <jamesg@filanet.com>
SBP-2 module load options:
- Max speed supported: S200
- Max sectors per I/O supported: 255
- Max outstanding commands supported: 64
- Max outstanding commands per lun supported: 1
- Serialized I/O (debug): no
- Exclusive login: yes

# If Max speed is not specified,this issue is happened,too :-(

Message of /proc/scsi/scsi at 2.4.21-rc1 (after -rc2,this message is *not*
displayed... ) for IEEE1394 hard drive(s) is below :

Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: SAMSUNG  Model: SV8004H          Rev:     
  Type:   Direct-Access                    ANSI SCSI revision: 02


Regards,
 Ohta 

Re: 2.4.21-rc3 : 1394 : Cannot detect hard drive(s?).

[Ben Collins]

On Sat, May 24, 2003 at 02:16:35AM +0900, Kyuma Ohta wrote:
> Hi,
> After 2.4.21-rc2,driver of IEEE1394 storage ( a.k.a. sbp2 ) is not able to
> detect IEEE1394 Hard Drive.

Please read the SBP-2 info on www.linux1394.org. You can either use the
rescan-scsi-bus.sh script, or the controversial add_single/remove_single
patch for the scsi layer.

SCSI is not hotplug capable per-device in 2.4. Any hint of this being
possible from the past with SBP-2 is accidental and not supported.

If you want real SCSI/SBP-2 hotplug support, use 2.5.69.

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