On 09/11/05 05:40, Christoph Hellwig wrote: > > Yes, absolutely. This discussion is driving far off right now, no one > is asking Adaptec to add support for competing products here, we're just > asking to not declare the host_template in the common code, and supporting > limited controllers is one of the reasons. Hi Christoph, I cannot make something to be, something that it is not. That is, the SAS LLDD is not a "scsi host" and it will never be, because it is just not a "scsi host". What it is, is an access point to the transport, this is its sole function and existance. E.g. it doesn't know about max_luns, etc, which are purely SCSI Core-into-scsi_host concepts. It does know about Execute Command SCSI RPC and TMFs. The "scsi_host" template is a SCSI Core concept, which mixes a software component (what it is) and a hardware component (what you're talking about). Now, see the layering infrastructure: SATA support: The sas_sata_host.c file would also declare a scsi_host, where it will define its own queuecommand(), eh_timed_out(), eh_strategy_handler(), etc. and do the _protocol_ part, whereby the SAS LLDD does the transport part. Luben - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
