Re: [RFC] FC pass thru - Rev V

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Seokmann Ju wrote:
> On Feb 11, 2009, at 7:43 AM, Seokmann Ju wrote:
> 
>> On Feb 11, 2009, at 7:13 AM, James Smart wrote:
>>
>>> Trying to kick-start this again...
>>> I've updated the prior RFC with the comments from Seokmann,
>>> SvenFujita, and Boaz. I would still like review on the
>>> blk_xxx completion calls in the std and error paths.
>> I'm looking the driver changes to match it with latest updates in  
>> the transport layer.
>> The driver with the changes should be available within a couple of  
>> weeks.
> Here is a change that I've made for transport layer while I'm testing  
> the feature.
> ---
> diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/ 
> scsi_transport_fc.c
> index 63ab7bc..4bca164 100644
> --- a/drivers/scsi/scsi_transport_fc.c
> +++ b/drivers/scsi/scsi_transport_fc.c
> @@ -3435,10 +3435,11 @@ fc_bsg_jobdone(struct fc_bsg_job *job)
>                  BUG_ON(job->reply->reply_payload_rcv_len > rsp_len);
>                  /* set reply (bidi) residual */
>                  rsp->data_len = (rsp_len - job->reply- 
>  >reply_payload_rcv_len);

This part looks a bit white-space broken.

> -       }
> +               blk_end_bidi_request(req, err, blk_rq_bytes(req),
> +                   job->reply->reply_payload_rcv_len);
> 
> -       /* we assume all request payload was transferred */
> -       blk_end_request(req, err, blk_rq_bytes(req));
> +       } else
> +               blk_end_request(req, err, blk_rq_bytes(req));

I still do not like this version for more then one reason. There is
a more proper simpler way.

Where is the code-base this is patching? I'll make a proper patch for you.

> 
>          fc_destroy_bsgjob(job);
>   }
> ---
> 
> With this change, I'm able to issue several ELS/CT services to the  
> qla2xxx module for those registered to the transport layer and have  
> rport associated with them.
> 
<snip>

Boaz
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