On 10/24/05 18:17, Brian King wrote: > The following patches enhance libata to allow SAS device drivers > to utilize libata to talk to SATA devices. It introduces some > new APIs which allow libata to be used without allocating a > virtual scsi host. In the context of SAS, a struct ata_port > is not a physical port, but rather becomes a virtual construct. > > Since my last post, I have removed the dependence on the host_set > struct. The following two patches depend on the qc_transport patch: > > http://marc.theaimsgroup.com/?l=linux-ide&m=112845939215286&w=2 > > The API is the same as the last time I posted it to linux-ide, > but here is the description again: > > New APIs: > > ata_sas_port_alloc - Allocate an ata_port > ata_sas_port_init - Initialize an ata_port (probe device, etc) > ata_sas_port_destroy - Free an ata_port allocated by ata_sas_port_alloc > ata_sas_slave_configure - configure scsi device > ata_sas_queuecmd - queue a scsi command, similar to ata_scsi_queuecomand > > These new APIs can be used either directly by a SAS LLDD or could be used > by the SAS transport class. > > Possible usage for a SAS LLDD would be: > > scsi_scan_host > slave_alloc > ata_sas_port_alloc > ata_sas_port_init > slave_configure > ata_sas_slave_configure > > Commands received by the LLDD for SATA devices would call ata_sas_queuecmd. > > Device teardown would occur with: > > slave_destroy > ata_sas_port_destroy Hey Brian, That's admireable effort. Is there a git tree I can pull from which has these patches? (I don't mind using the patches themselves as well.) I'll take a look indepth and comment further. Thanks, Luben -- http://linux.adaptec.com/sas/ http://www.adaptec.com/sas/ - : 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
