On 10/15/20 4:06 AM, Douglas Gilbert wrote:
Add support for the sg v4 interface based on struct sg_io_v4 found in include/uapi/linux/bsg.h and only previously supported by the bsg driver. Add ioctl(SG_IOSUBMIT) and ioctl(SG_IORECEIVE) for async (non-blocking) usage of the sg v4 interface. Do not accept the v3 interface with these ioctls. Do not accept the v4 interface with this driver's existing write() and read() system calls. For sync (blocking) usage expand the existing ioctl(SG_IO) to additionally accept the sg v4 interface object. Signed-off-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx> --- drivers/scsi/sg.c | 442 +++++++++++++++++++++++++++++++++-------- include/uapi/scsi/sg.h | 37 +++- 2 files changed, 397 insertions(+), 82 deletions(-) Reviewed-by: Hannes Reinecke <hare@xxxxxxx>
Cheers, Hannes -- Dr. Hannes Reinecke Kernel Storage Architect hare@xxxxxxx +49 911 74053 688 SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer
