On Mon, 2018-07-30 at 14:52 -0400, Douglas Gilbert wrote: > I designed 'struct sg_io_v4' found in include/uapi/linux/bsg.h to handle > storage > related protocols, not just the SCSI command set. After the guard, the next > two fields in that structure are: > __u32 protocol; /* [i] 0 -> SCSI , .... */ > __u32 subprotocol; /* [i] 0 -> SCSI command, 1 -> SCSI task > management function, .... */ > > So there is lots of room for other protocols.
Hi Doug, That's great, but it seems like most bsg drivers use other data structures than struct sg_io_v4. See e.g. struct fc_bsg_request and struct fc_bsg_reply in include/uapi/scsi/scsi_bsg_fc.h. See also struct iscsi_bsg_request and struct iscsi_bsg_reply in include/scsi/scsi_bsg_iscsi.h. The output of git grep -nH ' = job->request;' did not reveal any bsg driver that uses struct sg_io_v4. Did I perhaps misunderstand something? Thanks, Bart.
