77 				struct uas_dev_info *devinfo, gfp_t gfp);
80 static void uas_free_streams(struct uas_dev_info *devinfo);
86 	struct uas_dev_info *devinfo =  in uas_do_work()  local
93 	spin_lock_irqsave(&devinfo->lock, flags);  in uas_do_work()
95 	if (devinfo->resetting)  in uas_do_work()
98 	for (i = 0; i < devinfo->qdepth; i++) {  in uas_do_work()
99 		if (!devinfo->cmnd[i])  in uas_do_work()
102 		cmnd = devinfo->cmnd[i];  in uas_do_work()
112 			schedule_work(&devinfo->work);  in uas_do_work()
115 	spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_do_work()
122 	struct uas_dev_info *devinfo = cmnd->device->hostdata;  in uas_add_work()  local
124 	lockdep_assert_held(&devinfo->lock);  in uas_add_work()
126 	schedule_work(&devinfo->work);  in uas_add_work()
129 static void uas_zap_pending(struct uas_dev_info *devinfo, int result)  in uas_zap_pending()  argument
136 	spin_lock_irqsave(&devinfo->lock, flags);  in uas_zap_pending()
137 	for (i = 0; i < devinfo->qdepth; i++) {  in uas_zap_pending()
138 		if (!devinfo->cmnd[i])  in uas_zap_pending()
141 		cmnd = devinfo->cmnd[i];  in uas_zap_pending()
150 	spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_zap_pending()
222 	struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;  in uas_try_complete()  local
224 	lockdep_assert_held(&devinfo->lock);  in uas_try_complete()
230 	devinfo->cmnd[cmdinfo->uas_tag - 1] = NULL;  in uas_try_complete()
253 	struct uas_dev_info *devinfo = (struct uas_dev_info *)shost->hostdata;  in uas_stat_cmplt()  local
261 	spin_lock_irqsave(&devinfo->lock, flags);  in uas_stat_cmplt()
263 	if (devinfo->resetting)  in uas_stat_cmplt()
275 	if (idx >= MAX_CMNDS || !devinfo->cmnd[idx]) {  in uas_stat_cmplt()
281 	cmnd = devinfo->cmnd[idx];  in uas_stat_cmplt()
331 	spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_stat_cmplt()
348 	struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;  in uas_data_cmplt()  local
352 	spin_lock_irqsave(&devinfo->lock, flags);  in uas_data_cmplt()
368 	if (devinfo->resetting)  in uas_data_cmplt()
388 	spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_data_cmplt()
399 static struct urb *uas_alloc_data_urb(struct uas_dev_info *devinfo, gfp_t gfp,  in uas_alloc_data_urb()  argument
403 	struct usb_device *udev = devinfo->udev;  in uas_alloc_data_urb()
409 		? devinfo->data_in_pipe : devinfo->data_out_pipe;  in uas_alloc_data_urb()
415 	if (devinfo->use_streams)  in uas_alloc_data_urb()
423 static struct urb *uas_alloc_sense_urb(struct uas_dev_info *devinfo, gfp_t gfp,  in uas_alloc_sense_urb()  argument
426 	struct usb_device *udev = devinfo->udev;  in uas_alloc_sense_urb()
438 	usb_fill_bulk_urb(urb, udev, devinfo->status_pipe, iu, sizeof(*iu),  in uas_alloc_sense_urb()
440 	if (devinfo->use_streams)  in uas_alloc_sense_urb()
450 static struct urb *uas_alloc_cmd_urb(struct uas_dev_info *devinfo, gfp_t gfp,  in uas_alloc_cmd_urb()  argument
453 	struct usb_device *udev = devinfo->udev;  in uas_alloc_cmd_urb()
478 	usb_fill_bulk_urb(urb, udev, devinfo->cmd_pipe, iu, sizeof(*iu) + len,  in uas_alloc_cmd_urb()
496 	struct uas_dev_info *devinfo = cmnd->device->hostdata;  in uas_submit_sense_urb()  local
500 	urb = uas_alloc_sense_urb(devinfo, gfp, cmnd);  in uas_submit_sense_urb()
503 	usb_anchor_urb(urb, &devinfo->sense_urbs);  in uas_submit_sense_urb()
515 			   struct uas_dev_info *devinfo, gfp_t gfp)  in uas_submit_urbs()  argument
521 	lockdep_assert_held(&devinfo->lock);  in uas_submit_urbs()
530 		cmdinfo->data_in_urb = uas_alloc_data_urb(devinfo, gfp,  in uas_submit_urbs()
538 		usb_anchor_urb(cmdinfo->data_in_urb, &devinfo->data_urbs);  in uas_submit_urbs()
550 		cmdinfo->data_out_urb = uas_alloc_data_urb(devinfo, gfp,  in uas_submit_urbs()
558 		usb_anchor_urb(cmdinfo->data_out_urb, &devinfo->data_urbs);  in uas_submit_urbs()
570 		cmdinfo->cmd_urb = uas_alloc_cmd_urb(devinfo, gfp, cmnd);  in uas_submit_urbs()
577 		usb_anchor_urb(cmdinfo->cmd_urb, &devinfo->cmd_urbs);  in uas_submit_urbs()
596 	struct uas_dev_info *devinfo = sdev->hostdata;  in uas_queuecommand_lck()  local
607 	if ((devinfo->flags & US_FL_NO_ATA_1X) &&  in uas_queuecommand_lck()
616 	spin_lock_irqsave(&devinfo->lock, flags);  in uas_queuecommand_lck()
618 	if (devinfo->resetting) {  in uas_queuecommand_lck()
621 		spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_queuecommand_lck()
626 	for (idx = 0; idx < devinfo->qdepth; idx++) {  in uas_queuecommand_lck()
627 		if (!devinfo->cmnd[idx])  in uas_queuecommand_lck()
630 	if (idx == devinfo->qdepth) {  in uas_queuecommand_lck()
631 		spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_queuecommand_lck()
653 	if (!devinfo->use_streams)  in uas_queuecommand_lck()
656 	err = uas_submit_urbs(cmnd, devinfo, GFP_ATOMIC);  in uas_queuecommand_lck()
660 			spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_queuecommand_lck()
666 	devinfo->cmnd[idx] = cmnd;  in uas_queuecommand_lck()
667 	spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_queuecommand_lck()
681 	struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;  in DEF_SCSI_QCMD()  local
686 	spin_lock_irqsave(&devinfo->lock, flags);  in DEF_SCSI_QCMD()
694 	devinfo->cmnd[cmdinfo->uas_tag - 1] = NULL;  in DEF_SCSI_QCMD()
702 	spin_unlock_irqrestore(&devinfo->lock, flags);  in DEF_SCSI_QCMD()
719 	struct uas_dev_info *devinfo = sdev->hostdata;  in uas_eh_bus_reset_handler()  local
720 	struct usb_device *udev = devinfo->udev;  in uas_eh_bus_reset_handler()
724 	err = usb_lock_device_for_reset(udev, devinfo->intf);  in uas_eh_bus_reset_handler()
733 	spin_lock_irqsave(&devinfo->lock, flags);  in uas_eh_bus_reset_handler()
734 	devinfo->resetting = 1;  in uas_eh_bus_reset_handler()
735 	spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_eh_bus_reset_handler()
737 	usb_kill_anchored_urbs(&devinfo->cmd_urbs);  in uas_eh_bus_reset_handler()
738 	usb_kill_anchored_urbs(&devinfo->sense_urbs);  in uas_eh_bus_reset_handler()
739 	usb_kill_anchored_urbs(&devinfo->data_urbs);  in uas_eh_bus_reset_handler()
740 	uas_zap_pending(devinfo, DID_RESET);  in uas_eh_bus_reset_handler()
744 	spin_lock_irqsave(&devinfo->lock, flags);  in uas_eh_bus_reset_handler()
745 	devinfo->resetting = 0;  in uas_eh_bus_reset_handler()
746 	spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_eh_bus_reset_handler()
762 	struct uas_dev_info *devinfo = (struct uas_dev_info *)  in uas_target_alloc()  local
765 	if (devinfo->flags & US_FL_NO_REPORT_LUNS)  in uas_target_alloc()
773 	struct uas_dev_info *devinfo =  in uas_slave_alloc()  local
776 	sdev->hostdata = devinfo;  in uas_slave_alloc()
795 	if (devinfo->flags & US_FL_MAX_SECTORS_64)  in uas_slave_alloc()
797 	else if (devinfo->flags & US_FL_MAX_SECTORS_240)  in uas_slave_alloc()
805 	struct uas_dev_info *devinfo = sdev->hostdata;  in uas_slave_configure()  local
807 	if (devinfo->flags & US_FL_NO_REPORT_OPCODES)  in uas_slave_configure()
811 	if (devinfo->flags & US_FL_BROKEN_FUA)  in uas_slave_configure()
814 	scsi_change_queue_depth(sdev, devinfo->qdepth - 2);  in uas_slave_configure()
864 static int uas_configure_endpoints(struct uas_dev_info *devinfo)  in uas_configure_endpoints()  argument
867 	struct usb_device *udev = devinfo->udev;  in uas_configure_endpoints()
870 	r = uas_find_endpoints(devinfo->intf->cur_altsetting, eps);  in uas_configure_endpoints()
874 	devinfo->cmd_pipe = usb_sndbulkpipe(udev,  in uas_configure_endpoints()
876 	devinfo->status_pipe = usb_rcvbulkpipe(udev,  in uas_configure_endpoints()
878 	devinfo->data_in_pipe = usb_rcvbulkpipe(udev,  in uas_configure_endpoints()
880 	devinfo->data_out_pipe = usb_sndbulkpipe(udev,  in uas_configure_endpoints()
884 		devinfo->qdepth = 32;  in uas_configure_endpoints()
885 		devinfo->use_streams = 0;  in uas_configure_endpoints()
887 		devinfo->qdepth = usb_alloc_streams(devinfo->intf, eps + 1,  in uas_configure_endpoints()
889 		if (devinfo->qdepth < 0)  in uas_configure_endpoints()
890 			return devinfo->qdepth;  in uas_configure_endpoints()
891 		devinfo->use_streams = 1;  in uas_configure_endpoints()
897 static void uas_free_streams(struct uas_dev_info *devinfo)  in uas_free_streams()  argument
899 	struct usb_device *udev = devinfo->udev;  in uas_free_streams()
902 	eps[0] = usb_pipe_endpoint(udev, devinfo->status_pipe);  in uas_free_streams()
903 	eps[1] = usb_pipe_endpoint(udev, devinfo->data_in_pipe);  in uas_free_streams()
904 	eps[2] = usb_pipe_endpoint(udev, devinfo->data_out_pipe);  in uas_free_streams()
905 	usb_free_streams(devinfo->intf, eps, 3, GFP_NOIO);  in uas_free_streams()
912 	struct uas_dev_info *devinfo;  in uas_probe()  local
933 	devinfo = (struct uas_dev_info *)shost->hostdata;  in uas_probe()
934 	devinfo->intf = intf;  in uas_probe()
935 	devinfo->udev = udev;  in uas_probe()
936 	devinfo->resetting = 0;  in uas_probe()
937 	devinfo->shutdown = 0;  in uas_probe()
938 	devinfo->flags = dev_flags;  in uas_probe()
939 	init_usb_anchor(&devinfo->cmd_urbs);  in uas_probe()
940 	init_usb_anchor(&devinfo->sense_urbs);  in uas_probe()
941 	init_usb_anchor(&devinfo->data_urbs);  in uas_probe()
942 	spin_lock_init(&devinfo->lock);  in uas_probe()
943 	INIT_WORK(&devinfo->work, uas_do_work);  in uas_probe()
945 	result = uas_configure_endpoints(devinfo);  in uas_probe()
949 	result = scsi_init_shared_tag_map(shost, devinfo->qdepth - 2);  in uas_probe()
962 	uas_free_streams(devinfo);  in uas_probe()
971 static int uas_cmnd_list_empty(struct uas_dev_info *devinfo)  in uas_cmnd_list_empty()  argument
976 	spin_lock_irqsave(&devinfo->lock, flags);  in uas_cmnd_list_empty()
978 	for (i = 0; i < devinfo->qdepth; i++) {  in uas_cmnd_list_empty()
979 		if (devinfo->cmnd[i]) {  in uas_cmnd_list_empty()
985 	spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_cmnd_list_empty()
995 static int uas_wait_for_pending_cmnds(struct uas_dev_info *devinfo)  in uas_wait_for_pending_cmnds()  argument
1002 		flush_work(&devinfo->work);  in uas_wait_for_pending_cmnds()
1004 		r = usb_wait_anchor_empty_timeout(&devinfo->sense_urbs, 5000);  in uas_wait_for_pending_cmnds()
1008 		r = usb_wait_anchor_empty_timeout(&devinfo->data_urbs, 500);  in uas_wait_for_pending_cmnds()
1014 	} while (!uas_cmnd_list_empty(devinfo));  in uas_wait_for_pending_cmnds()
1022 	struct uas_dev_info *devinfo = (struct uas_dev_info *)shost->hostdata;  in uas_pre_reset()  local
1025 	if (devinfo->shutdown)  in uas_pre_reset()
1033 	if (uas_wait_for_pending_cmnds(devinfo) != 0) {  in uas_pre_reset()
1039 	uas_free_streams(devinfo);  in uas_pre_reset()
1047 	struct uas_dev_info *devinfo = (struct uas_dev_info *)shost->hostdata;  in uas_post_reset()  local
1051 	if (devinfo->shutdown)  in uas_post_reset()
1054 	err = uas_configure_endpoints(devinfo);  in uas_post_reset()
1074 	struct uas_dev_info *devinfo = (struct uas_dev_info *)shost->hostdata;  in uas_suspend()  local
1076 	if (uas_wait_for_pending_cmnds(devinfo) != 0) {  in uas_suspend()
1092 	struct uas_dev_info *devinfo = (struct uas_dev_info *)shost->hostdata;  in uas_reset_resume()  local
1096 	err = uas_configure_endpoints(devinfo);  in uas_reset_resume()
1114 	struct uas_dev_info *devinfo = (struct uas_dev_info *)shost->hostdata;  in uas_disconnect()  local
1117 	spin_lock_irqsave(&devinfo->lock, flags);  in uas_disconnect()
1118 	devinfo->resetting = 1;  in uas_disconnect()
1119 	spin_unlock_irqrestore(&devinfo->lock, flags);  in uas_disconnect()
1121 	cancel_work_sync(&devinfo->work);  in uas_disconnect()
1122 	usb_kill_anchored_urbs(&devinfo->cmd_urbs);  in uas_disconnect()
1123 	usb_kill_anchored_urbs(&devinfo->sense_urbs);  in uas_disconnect()
1124 	usb_kill_anchored_urbs(&devinfo->data_urbs);  in uas_disconnect()
1125 	uas_zap_pending(devinfo, DID_NO_CONNECT);  in uas_disconnect()
1128 	uas_free_streams(devinfo);  in uas_disconnect()
1142 	struct uas_dev_info *devinfo = (struct uas_dev_info *)shost->hostdata;  in uas_shutdown()  local
1147 	devinfo->shutdown = 1;  in uas_shutdown()
1148 	uas_free_streams(devinfo);  in uas_shutdown()