235 	struct tcmu_mailbox *mb = udev->mb_addr;  in is_ring_space_avail()  local
240 	tcmu_flush_dcache_range(mb, sizeof(*mb));  in is_ring_space_avail()
242 	cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */  in is_ring_space_avail()
275 	struct tcmu_mailbox *mb;  in tcmu_queue_cmd_ring()  local
304 	mb = udev->mb_addr;  in tcmu_queue_cmd_ring()
305 	cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */  in tcmu_queue_cmd_ring()
330 		cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */  in tcmu_queue_cmd_ring()
337 		entry = (void *) mb + CMDR_OFF + cmd_head;  in tcmu_queue_cmd_ring()
345 		UPDATE_HEAD(mb->cmd_head, pad_size, udev->cmdr_size);  in tcmu_queue_cmd_ring()
347 		cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */  in tcmu_queue_cmd_ring()
351 	entry = (void *) mb + CMDR_OFF + cmd_head;  in tcmu_queue_cmd_ring()
367 		void *to = (void *) mb + udev->data_off + udev->data_head;  in tcmu_queue_cmd_ring()
393 				to = (void *) mb + udev->data_off + udev->data_head;  in tcmu_queue_cmd_ring()
412 	memcpy((void *) mb + cdb_off, se_cmd->t_task_cdb, scsi_command_size(se_cmd->t_task_cdb));  in tcmu_queue_cmd_ring()
416 	UPDATE_HEAD(mb->cmd_head, command_size, udev->cmdr_size);  in tcmu_queue_cmd_ring()
417 	tcmu_flush_dcache_range(mb, sizeof(*mb));  in tcmu_queue_cmd_ring()
533 	struct tcmu_mailbox *mb;  in tcmu_handle_completions()  local
545 	mb = udev->mb_addr;  in tcmu_handle_completions()
546 	tcmu_flush_dcache_range(mb, sizeof(*mb));  in tcmu_handle_completions()
548 	while (udev->cmdr_last_cleaned != ACCESS_ONCE(mb->cmd_tail)) {  in tcmu_handle_completions()
550 		struct tcmu_cmd_entry *entry = (void *) mb + CMDR_OFF + udev->cmdr_last_cleaned;  in tcmu_handle_completions()
584 	if (mb->cmd_tail == mb->cmd_head)  in tcmu_handle_completions()
821 	struct tcmu_mailbox *mb;  in tcmu_configure_device()  local
854 	mb = udev->mb_addr;  in tcmu_configure_device()
855 	mb->version = TCMU_MAILBOX_VERSION;  in tcmu_configure_device()
856 	mb->cmdr_off = CMDR_OFF;  in tcmu_configure_device()
857 	mb->cmdr_size = udev->cmdr_size;  in tcmu_configure_device()