87 	struct sg_io_v4 hdr;  member
140 				struct sg_io_v4 *hdr, struct bsg_device *bd,  in blk_fill_sgv4_hdr_rq()  argument
143 	if (hdr->request_len > BLK_MAX_CDB) {  in blk_fill_sgv4_hdr_rq()
144 		rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL);  in blk_fill_sgv4_hdr_rq()
149 	if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request,  in blk_fill_sgv4_hdr_rq()
150 			   hdr->request_len))  in blk_fill_sgv4_hdr_rq()
153 	if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) {  in blk_fill_sgv4_hdr_rq()
162 	rq->cmd_len = hdr->request_len;  in blk_fill_sgv4_hdr_rq()
164 	rq->timeout = msecs_to_jiffies(hdr->timeout);  in blk_fill_sgv4_hdr_rq()
179 bsg_validate_sgv4_hdr(struct request_queue *q, struct sg_io_v4 *hdr, int *rw)  in bsg_validate_sgv4_hdr()  argument
183 	if (hdr->guard != 'Q')  in bsg_validate_sgv4_hdr()
186 	switch (hdr->protocol) {  in bsg_validate_sgv4_hdr()
188 		switch (hdr->subprotocol) {  in bsg_validate_sgv4_hdr()
200 	*rw = hdr->dout_xfer_len ? WRITE : READ;  in bsg_validate_sgv4_hdr()
208 bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm,  in bsg_map_hdr()  argument
225 	dprintk("map hdr %llx/%u %llx/%u\n", (unsigned long long) hdr->dout_xferp,  in bsg_map_hdr()
226 		hdr->dout_xfer_len, (unsigned long long) hdr->din_xferp,  in bsg_map_hdr()
227 		hdr->din_xfer_len);  in bsg_map_hdr()
229 	ret = bsg_validate_sgv4_hdr(q, hdr, &rw);  in bsg_map_hdr()
241 	ret = blk_fill_sgv4_hdr_rq(q, rq, hdr, bd, has_write_perm);  in bsg_map_hdr()
245 	if (rw == WRITE && hdr->din_xfer_len) {  in bsg_map_hdr()
260 		dxferp = (void __user *)(unsigned long)hdr->din_xferp;  in bsg_map_hdr()
262 				       hdr->din_xfer_len, GFP_KERNEL);  in bsg_map_hdr()
267 	if (hdr->dout_xfer_len) {  in bsg_map_hdr()
268 		dxfer_len = hdr->dout_xfer_len;  in bsg_map_hdr()
269 		dxferp = (void __user *)(unsigned long)hdr->dout_xferp;  in bsg_map_hdr()
270 	} else if (hdr->din_xfer_len) {  in bsg_map_hdr()
271 		dxfer_len = hdr->din_xfer_len;  in bsg_map_hdr()
272 		dxferp = (void __user *)(unsigned long)hdr->din_xferp;  in bsg_map_hdr()
311 	bc->hdr.duration = jiffies_to_msecs(jiffies - bc->hdr.duration);  in bsg_rq_end_io()
328 	int at_head = (0 == (bc->hdr.flags & BSG_FLAG_Q_AT_TAIL));  in bsg_add_command()
337 	bc->hdr.duration = jiffies;  in bsg_add_command()
393 static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr,  in blk_complete_sgv4_hdr_rq()  argument
402 	hdr->device_status = rq->errors & 0xff;  in blk_complete_sgv4_hdr_rq()
403 	hdr->transport_status = host_byte(rq->errors);  in blk_complete_sgv4_hdr_rq()
404 	hdr->driver_status = driver_byte(rq->errors);  in blk_complete_sgv4_hdr_rq()
405 	hdr->info = 0;  in blk_complete_sgv4_hdr_rq()
406 	if (hdr->device_status || hdr->transport_status || hdr->driver_status)  in blk_complete_sgv4_hdr_rq()
407 		hdr->info |= SG_INFO_CHECK;  in blk_complete_sgv4_hdr_rq()
408 	hdr->response_len = 0;  in blk_complete_sgv4_hdr_rq()
410 	if (rq->sense_len && hdr->response) {  in blk_complete_sgv4_hdr_rq()
411 		int len = min_t(unsigned int, hdr->max_response_len,  in blk_complete_sgv4_hdr_rq()
414 		ret = copy_to_user((void __user *)(unsigned long)hdr->response,  in blk_complete_sgv4_hdr_rq()
417 			hdr->response_len = len;  in blk_complete_sgv4_hdr_rq()
423 		hdr->dout_resid = rq->resid_len;  in blk_complete_sgv4_hdr_rq()
424 		hdr->din_resid = rq->next_rq->resid_len;  in blk_complete_sgv4_hdr_rq()
428 		hdr->din_resid = rq->resid_len;  in blk_complete_sgv4_hdr_rq()
430 		hdr->dout_resid = rq->resid_len;  in blk_complete_sgv4_hdr_rq()
501 		tret = blk_complete_sgv4_hdr_rq(bc->rq, &bc->hdr, bc->bio,  in bsg_complete_all_commands()
536 		ret = blk_complete_sgv4_hdr_rq(bc->rq, &bc->hdr, bc->bio,  in __bsg_read()
539 		if (copy_to_user(buf, &bc->hdr, sizeof(bc->hdr)))  in __bsg_read()
620 		if (copy_from_user(&bc->hdr, buf, sizeof(bc->hdr))) {  in __bsg_write()
628 		rq = bsg_map_hdr(bd, &bc->hdr, has_write_perm, bc->sense);  in __bsg_write()
909 		struct sg_io_v4 hdr;  in bsg_ioctl()  local
913 		if (copy_from_user(&hdr, uarg, sizeof(hdr)))  in bsg_ioctl()
916 		rq = bsg_map_hdr(bd, &hdr, file->f_mode & FMODE_WRITE, sense);  in bsg_ioctl()
924 		at_head = (0 == (hdr.flags & BSG_FLAG_Q_AT_TAIL));  in bsg_ioctl()
926 		ret = blk_complete_sgv4_hdr_rq(rq, &hdr, bio, bidi_bio);  in bsg_ioctl()
928 		if (copy_to_user(uarg, &hdr, sizeof(hdr)))  in bsg_ioctl()