usb/storage/uas.c

70 	struct urb *cmd_urb;
71 	struct urb *data_in_urb;
72 	struct urb *data_out_urb;
176 static void uas_sense(struct urb *urb, struct scsi_cmnd *cmnd)
178 	struct sense_iu *sense_iu = urb->transfer_buffer;
181 	if (urb->actual_length > 16) {
183 		if (len + 16 != urb->actual_length) {
184 			int newlen = min(len + 16, urb->actual_length) - 16;
187 			sdev_printk(KERN_INFO, sdev, "%s: urb length %d "
190 					urb->actual_length, len, newlen);
261 static void uas_xfer_data(struct urb *urb, struct scsi_cmnd *cmnd,
297 static void uas_stat_cmplt(struct urb *urb)
299 	struct iu *iu = urb->transfer_buffer;
300 	struct Scsi_Host *shost = urb->context;
302 	struct urb *data_in_urb = NULL;
303 	struct urb *data_out_urb = NULL;
308 	int status = urb->status;
318 			dev_err(&urb->dev->dev, "stat urb: status %d\n", status);
324 		dev_err(&urb->dev->dev,
325 			"stat urb: no pending cmd for uas-tag %d\n", idx + 1);
339 		uas_sense(urb, cmnd);
354 		uas_xfer_data(urb, cmnd, SUBMIT_DATA_IN_URB);
362 		uas_xfer_data(urb, cmnd, SUBMIT_DATA_OUT_URB);
378 	usb_free_urb(urb);
392 static void uas_data_cmplt(struct urb *urb)
394 	struct scsi_cmnd *cmnd = urb->context;
399 	int status = urb->status;
403 	if (cmdinfo->data_in_urb == urb) {
406 	} else if (cmdinfo->data_out_urb == urb) {
414 	/* Data urbs should not complete before the cmd urb is submitted */
426 		scsi_set_resid(cmnd, sdb->length - urb->actual_length);
430 	usb_free_urb(urb);
434 static void uas_cmd_cmplt(struct urb *urb)
436 	if (urb->status)
437 		dev_err(&urb->dev->dev, "cmd cmplt err %d\n", urb->status);
439 	usb_free_urb(urb);
442 static struct urb *uas_alloc_data_urb(struct uas_dev_info *devinfo, gfp_t gfp,
448 	struct urb *urb = usb_alloc_urb(0, gfp);
453 	if (!urb)
455 	usb_fill_bulk_urb(urb, udev, pipe, NULL, sdb->length,
458 		urb->stream_id = cmdinfo->uas_tag;
459 	urb->num_sgs = udev->bus->sg_tablesize ? sdb->table.nents : 0;
460 	urb->sg = sdb->table.sgl;
462 	return urb;
465 static struct urb *uas_alloc_sense_urb(struct uas_dev_info *devinfo, gfp_t gfp,
470 	struct urb *urb = usb_alloc_urb(0, gfp);
473 	if (!urb)
480 	usb_fill_bulk_urb(urb, udev, devinfo->status_pipe, iu, sizeof(*iu),
483 		urb->stream_id = cmdinfo->uas_tag;
484 	urb->transfer_flags |= URB_FREE_BUFFER;
486 	return urb;
488 	usb_free_urb(urb);
492 static struct urb *uas_alloc_cmd_urb(struct uas_dev_info *devinfo, gfp_t gfp,
498 	struct urb *urb = usb_alloc_urb(0, gfp);
502 	if (!urb)
520 	usb_fill_bulk_urb(urb, udev, devinfo->cmd_pipe, iu, sizeof(*iu) + len,
522 	urb->transfer_flags |= URB_FREE_BUFFER;
524 	return urb;
526 	usb_free_urb(urb);
539 	struct urb *urb;
542 	urb = uas_alloc_sense_urb(devinfo, gfp, cmnd);
543 	if (!urb)
545 	usb_anchor_urb(urb, &devinfo->sense_urbs);
546 	err = usb_submit_urb(urb, gfp);
548 		usb_unanchor_urb(urb);
550 		usb_free_urb(urb);
729 	struct urb *data_in_urb = NULL;
730 	struct urb *data_out_urb = NULL;