340 	struct tcmu_mailbox *mb = udev->mb_addr;  in is_ring_space_avail()  local
345 	tcmu_flush_dcache_range(mb, sizeof(*mb));  in is_ring_space_avail()
347 	cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */  in is_ring_space_avail()
380 	struct tcmu_mailbox *mb;  in tcmu_queue_cmd_ring()  local
409 	mb = udev->mb_addr;  in tcmu_queue_cmd_ring()
410 	cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */  in tcmu_queue_cmd_ring()
435 		cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */  in tcmu_queue_cmd_ring()
442 		entry = (void *) mb + CMDR_OFF + cmd_head;  in tcmu_queue_cmd_ring()
450 		UPDATE_HEAD(mb->cmd_head, pad_size, udev->cmdr_size);  in tcmu_queue_cmd_ring()
452 		cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */  in tcmu_queue_cmd_ring()
456 	entry = (void *) mb + CMDR_OFF + cmd_head;  in tcmu_queue_cmd_ring()
484 	memcpy((void *) mb + cdb_off, se_cmd->t_task_cdb, scsi_command_size(se_cmd->t_task_cdb));  in tcmu_queue_cmd_ring()
488 	UPDATE_HEAD(mb->cmd_head, command_size, udev->cmdr_size);  in tcmu_queue_cmd_ring()
489 	tcmu_flush_dcache_range(mb, sizeof(*mb));  in tcmu_queue_cmd_ring()
574 	struct tcmu_mailbox *mb;  in tcmu_handle_completions()  local
585 	mb = udev->mb_addr;  in tcmu_handle_completions()
586 	tcmu_flush_dcache_range(mb, sizeof(*mb));  in tcmu_handle_completions()
588 	while (udev->cmdr_last_cleaned != ACCESS_ONCE(mb->cmd_tail)) {  in tcmu_handle_completions()
590 		struct tcmu_cmd_entry *entry = (void *) mb + CMDR_OFF + udev->cmdr_last_cleaned;  in tcmu_handle_completions()
624 	if (mb->cmd_tail == mb->cmd_head)  in tcmu_handle_completions()
861 	struct tcmu_mailbox *mb;  in tcmu_configure_device()  local
894 	mb = udev->mb_addr;  in tcmu_configure_device()
895 	mb->version = TCMU_MAILBOX_VERSION;  in tcmu_configure_device()
896 	mb->cmdr_off = CMDR_OFF;  in tcmu_configure_device()
897 	mb->cmdr_size = udev->cmdr_size;  in tcmu_configure_device()