Re: Framing Discussion

[JP Raghavendra Rao <Jp.Raghavendra@EBay.Sun.COM>]

>Buffer being allocated by the user application is just one case
>where applications are doing raw read. I understand that it
>is a problem when buffers are pre-allocated. But is this
>the problem space we are addressing here ? 

Yes, this is what that needs to be addressed. SCSI applications always
pre-allocate the buffer before sending out the SCSI read request.


>2) iscsi layer posts commands and willing to receive buffers
>   handed by the transport layer. In this cases, i would assume
>   the iscsi layer can easily separate the data belonging to
>   the different commands it posted. I don't see why you need
>   any other extra mechanism here.

Since the application has already pre-allocated the buffer, if the
data is received from the transport layer is in a different buffer,
the iscsi layer has to copy the data into the application buffer.

-JP