On 2/12/2013 2:57 PM, Elliott, Robert (Server Storage) wrote: > Ideally the device driver for the SCSI initiator port would report those > attributes, and higher level code would combine them with support > information from the device server (REPORT SUPPORTED TMF command, REPORT > SUPPORTED OPCODES command, etc.) to decide what is supported.
Well, for the eh_xxx_handler functions, that is basically what happens now. The host driver can fail to set a callback for the eh_xxx_handlers if it doesn't support the operation. At that point, even if the target device supports a function (say target reset) if the host driver doesn't, then the target reset will be skipped. Of course, a number of the drivers define functions their underlying protocol's don't support. For example, bus reset on fibre channel. Which I personally believe is an error. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
