What does the error code 82 mean?

[fengyd]

Hi,

I found the related code in the function sym_int_sir:
    /*
     *  The device wants us to tranfer more data than
     *  expected or in the wrong direction.
     *  The number of extra bytes is in scratcha.
     *  It is a data overrun condition.
     */
    case *SIR_DATA_OVERRUN*:
        if (cp) {
            OUTONB (HF_PRT, HF_EXT_ERR);
          *  cp->xerr_status |= XE_EXTRA_DATA;*
            cp->extra_bytes += INL (nc_scratcha);
        }
        goto out;

I'm not familiar with SCSI.
What does DATA_OVERRUN actually mean?
How can it be triggered?
Could you give more details about it?

Thanks for your help.

Br.
Yafeng



On Sat, Feb 28, 2015 at 4:50 PM, fengyd <fengyd81 at gmail.com> wrote:

> Hi,
>
> It seems the error code 82 & 3F is 0x12.
> And the definition of the error code in the file cam.h:
>         CAM_AUTOSENSE_FAIL = 0x10,/* Autosense: request sense cmd fail */
>         CAM_NO_HBA,             /* No HBA Detected error */
>         CAM_DATA_RUN_ERR,       /* Data Overrun error */
>
> So, it means data overrun error?
>
> Thanks.
>
> Br.
> Yafeng
>
> On Sat, Feb 28, 2015 at 4:32 PM, fengyd <fengyd81 at gmail.com> wrote:
>
>> Hi,
>>
>> INQUIRY command is sent to the target, but error code 82 is returned.
>> I added some log in the driver:
>> SIR_COMPLETE_ERROR
>> (pass0:sym0:0:0:0): sym_complete_error status = 18
>> (pass0:sym0:0:0:0): status = 82
>>
>> Do you know what  does the error code 82 mean?
>>
>> Thanks in advance.
>>
>> Br.
>> Yafeng
>>
>
>