[Stgt-devel] Inconsistency in usage of scsi_id and iscsi_sn?

[Albert Pauw]

Mark Harvey wrote:
> Try a 'lsscsi -g' and then a "sg_inq -v /dev/sg??' where ?? is the sg 
> path returned from 'lsscsi -g'
> And
> sg_inq -p 80 /dev/sg??
> sg_inq -p 83 /dev/sg??
>
> Some of the parameters are used inq params 80, 83 etc
>
> I need to refer back to the code to identify exactly where each param 
> is used. (A follow up email tomorrow).
>
> Note: lsscsi & sg3_utils available from www.torque.net/sg/
>
> Cheers
> Mark
[root at orange ~]# sg_inq -v /dev/sg3
    inquiry cdb: 12 00 00 00 24 00
standard INQUIRY:
    inquiry cdb: 12 00 00 00 42 00
  PQual=0  Device_type=5  RMB=1  version=0x05  [SPC-3]
  [AERC=0]  [TrmTsk=1]  NormACA=0  HiSUP=0  Resp_data_format=2
  SCCS=0  ACC=0  TGPS=0  3PC=0  Protect=0  BQue=0
  EncServ=0  MultiP=0  [MChngr=0]  [ACKREQQ=0]  Addr16=0
  [RelAdr=0]  WBus16=0  Sync=0  Linked=0  [TranDis=0]  CmdQue=1
  [SPI: Clocking=0x0  QAS=0  IUS=0]
    length=66 (0x42)   Peripheral device type: cd/dvd
 Vendor identification: MITSUMI
 Product identification: FD001
 Product revision level: 0001
    inquiry cdb: 12 01 00 00 fc 00
    inquiry: requested 252 bytes but got 7 bytes
    inquiry cdb: 12 01 80 00 fc 00
    inquiry: requested 252 bytes but got 12 bytes
 Unit serial number: 001

[root at orange ~]# sg_inq -p 0x83 /dev/sg3
VPD INQUIRY: Device Identification page
  Designation descriptor number 1, descriptor length: 28
    id_type: T10 vendor identification,  code_set: Binary
    associated with the addressed logical unit
      vendor id: CDROM IS
      vendor specific: O

[root at orange ~]# sg_inq -p 0x80 /dev/sg3
VPD INQUIRY: Unit serial number page
  Unit serial number: 001

By the way, as you can see it's sg_inq -p 0x80/0x83 (hex, not decimal) 
but that was easy to figure out.
If you look at the vendor id and vendor specific of the -p 0x83, then it 
looks like the scsi_id is send,
but in a wrong way. The scsi_id was set up as "CDROM ISO", here you can 
see that vendor id is seen
as "CDROM IS" and vendor specific as "O?.

Albert