Re: [PATCH RFC 1/3] SCSI Userspace Target: scsi-ml changes

[Mike Christie <michaelc@cs.wisc.edu>]

FUJITA Tomonori wrote:
> From: James Bottomley <James.Bottomley@SteelEye.com>
> Subject: Re: [PATCH RFC 1/3] SCSI Userspace Target: scsi-ml changes
> Date: Sun, 05 Feb 2006 12:30:28 -0600
> 
> 
>>OK ... I think this looks good enough to fix up in tree.  I just have
>>one minor quibble, so could you fix that and I'll put it in.
>>
>>On Tue, 2006-01-24 at 20:58 -0600, Mike Christie wrote:
>>
>>>@@ -31,6 +32,7 @@ struct scsi_pointer {
>>> struct scsi_cmnd {
>>>        int     sc_magic;
>>> 
>>>+       struct Scsi_Host *shost;
>>>        struct scsi_device *device;
>>
>>This is an unnecessary addition; you can get this from device->host.
> 
> 
> Thanks a lot. I've just fixed this.
> 

We actually need ths shost pointer becuase we do not represent the LU in 
the kernel. So we go from:

scsi_host -> host's uspace request_queue (used to pass commands and 
messages from the target LLD interrup handler to our netlink 
code/userspace -> in userspace we represent the target, device/LU, and host.

Tomo did you add a virtual scsi_device somewhere?