415 	sg_io_hdr_t *hp;  in sg_read()  local
489 	hp = &srp->header;  in sg_read()
498 	old_hdr->reply_len = (int) hp->timeout;  in sg_read()
500 	old_hdr->pack_id = hp->pack_id;  in sg_read()
502 	    ((srp->data.cmd_opcode >= 0xc0) && (12 == hp->cmd_len)) ? 1 : 0;  in sg_read()
503 	old_hdr->target_status = hp->masked_status;  in sg_read()
504 	old_hdr->host_status = hp->host_status;  in sg_read()
505 	old_hdr->driver_status = hp->driver_status;  in sg_read()
506 	if ((CHECK_CONDITION & hp->masked_status) ||  in sg_read()
507 	    (DRIVER_SENSE & hp->driver_status))  in sg_read()
510 	switch (hp->host_status) {  in sg_read()
532 				  hp->masked_status == GOOD) ? 0 : EIO;  in sg_read()
567 	sg_io_hdr_t *hp = &srp->header;  in sg_new_read()  local
575 	hp->sb_len_wr = 0;  in sg_new_read()
576 	if ((hp->mx_sb_len > 0) && hp->sbp) {  in sg_new_read()
577 		if ((CHECK_CONDITION & hp->masked_status) ||  in sg_new_read()
578 		    (DRIVER_SENSE & hp->driver_status)) {  in sg_new_read()
580 			sb_len = (hp->mx_sb_len > sb_len) ? sb_len : hp->mx_sb_len;  in sg_new_read()
583 			if (copy_to_user(hp->sbp, srp->sense_b, len)) {  in sg_new_read()
587 			hp->sb_len_wr = len;  in sg_new_read()
590 	if (hp->masked_status || hp->host_status || hp->driver_status)  in sg_new_read()
591 		hp->info |= SG_INFO_CHECK;  in sg_new_read()
592 	if (copy_to_user(buf, hp, SZ_SG_IO_HDR)) {  in sg_new_read()
612 	sg_io_hdr_t *hp;  in sg_write()  local
671 	hp = &srp->header;  in sg_write()
672 	hp->interface_id = '\0';	/* indicator of old interface tunnelled */  in sg_write()
673 	hp->cmd_len = (unsigned char) cmd_size;  in sg_write()
674 	hp->iovec_count = 0;  in sg_write()
675 	hp->mx_sb_len = 0;  in sg_write()
677 		hp->dxfer_direction = (old_hdr.reply_len > SZ_SG_HEADER) ?  in sg_write()
680 		hp->dxfer_direction = (mxsize > 0) ? SG_DXFER_FROM_DEV : SG_DXFER_NONE;  in sg_write()
681 	hp->dxfer_len = mxsize;  in sg_write()
682 	if ((hp->dxfer_direction == SG_DXFER_TO_DEV) ||  in sg_write()
683 	    (hp->dxfer_direction == SG_DXFER_TO_FROM_DEV))  in sg_write()
684 		hp->dxferp = (char __user *)buf + cmd_size;  in sg_write()
686 		hp->dxferp = NULL;  in sg_write()
687 	hp->sbp = NULL;  in sg_write()
688 	hp->timeout = old_hdr.reply_len;	/* structure abuse ... */  in sg_write()
689 	hp->flags = input_size;	/* structure abuse ... */  in sg_write()
690 	hp->pack_id = old_hdr.pack_id;  in sg_write()
691 	hp->usr_ptr = NULL;  in sg_write()
699 	if (hp->dxfer_direction == SG_DXFER_TO_FROM_DEV) {  in sg_write()
720 	sg_io_hdr_t *hp;  in sg_new_write()  local
737 	hp = &srp->header;  in sg_new_write()
738 	if (__copy_from_user(hp, buf, SZ_SG_IO_HDR)) {  in sg_new_write()
742 	if (hp->interface_id != 'S') {  in sg_new_write()
746 	if (hp->flags & SG_FLAG_MMAP_IO) {  in sg_new_write()
747 		if (hp->dxfer_len > sfp->reserve.bufflen) {  in sg_new_write()
751 		if (hp->flags & SG_FLAG_DIRECT_IO) {  in sg_new_write()
762 	if ((!hp->cmdp) || (hp->cmd_len < 6) || (hp->cmd_len > sizeof (cmnd))) {  in sg_new_write()
766 	if (!access_ok(hp->cmdp, hp->cmd_len)) {  in sg_new_write()
770 	if (__copy_from_user(cmnd, hp->cmdp, hp->cmd_len)) {  in sg_new_write()
792 	sg_io_hdr_t *hp = &srp->header;  in sg_common_write()  local
795 	hp->status = 0;  in sg_common_write()
796 	hp->masked_status = 0;  in sg_common_write()
797 	hp->msg_status = 0;  in sg_common_write()
798 	hp->info = 0;  in sg_common_write()
799 	hp->host_status = 0;  in sg_common_write()
800 	hp->driver_status = 0;  in sg_common_write()
801 	hp->resid = 0;  in sg_common_write()
804 			(int) cmnd[0], (int) hp->cmd_len));  in sg_common_write()
806 	if (hp->dxfer_len >= SZ_256M)  in sg_common_write()
829 	hp->duration = jiffies_to_msecs(jiffies);  in sg_common_write()
830 	if (hp->interface_id != '\0' &&	/* v3 (or later) interface */  in sg_common_write()
831 	    (SG_FLAG_Q_AT_TAIL & hp->flags))  in sg_common_write()
1704 	sg_io_hdr_t *hp = &srp->header;  in sg_start_req()  local
1705 	int dxfer_len = (int) hp->dxfer_len;  in sg_start_req()
1706 	int dxfer_dir = hp->dxfer_direction;  in sg_start_req()
1707 	unsigned int iov_count = hp->iovec_count;  in sg_start_req()
1712 	int rw = hp->dxfer_direction == SG_DXFER_TO_DEV ? WRITE : READ;  in sg_start_req()
1719 	if (hp->cmd_len > BLK_MAX_CDB) {  in sg_start_req()
1720 		long_cmdp = kzalloc(hp->cmd_len, GFP_KERNEL);  in sg_start_req()
1736 	rq = blk_get_request(q, hp->dxfer_direction == SG_DXFER_TO_DEV ?  in sg_start_req()
1744 	if (hp->cmd_len > BLK_MAX_CDB)  in sg_start_req()
1746 	memcpy(req->cmd, cmd, hp->cmd_len);  in sg_start_req()
1747 	req->cmd_len = hp->cmd_len;  in sg_start_req()
1756 	if (sg_allow_dio && hp->flags & SG_FLAG_DIRECT_IO &&  in sg_start_req()
1759 	    blk_rq_aligned(q, (unsigned long)hp->dxferp, dxfer_len))  in sg_start_req()
1770 		} else if (hp->flags & SG_FLAG_MMAP_IO) {  in sg_start_req()
1789 		md->null_mapped = hp->dxferp ? 0 : 1;  in sg_start_req()
1800 		res = import_iovec(rw, hp->dxferp, iov_count, 0, &iov, &i);  in sg_start_req()
1804 		iov_iter_truncate(&i, hp->dxfer_len);  in sg_start_req()
1813 		res = blk_rq_map_user(q, rq, md, hp->dxferp,  in sg_start_req()
1814 				      hp->dxfer_len, GFP_ATOMIC);  in sg_start_req()
1821 			hp->info |= SG_INFO_DIRECT_IO;  in sg_start_req()
2518 	const sg_io_hdr_t *hp;  in sg_proc_debug_helper()  local
2536 			hp = &srp->header;  in sg_proc_debug_helper()
2537 			new_interface = (hp->interface_id == '\0') ? 0 : 1;  in sg_proc_debug_helper()
2540 				    (SG_FLAG_MMAP_IO & hp->flags))  in sg_proc_debug_helper()
2545 				if (SG_INFO_DIRECT_IO_MASK & hp->info)  in sg_proc_debug_helper()
2559 				seq_printf(s, " dur=%d", hp->duration);  in sg_proc_debug_helper()
2563 					(new_interface ? hp->timeout :  in sg_proc_debug_helper()
2565 					(ms > hp->duration ? ms - hp->duration : 0));  in sg_proc_debug_helper()