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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* hvcserver.h
* Copyright (C) 2004 Ryan S Arnold, IBM Corporation
*
* PPC64 virtual I/O console server support.
*/
#ifndef _PPC64_HVCSERVER_H
#define _PPC64_HVCSERVER_H
#ifdef __KERNEL__
#include <linux/list.h>
/* Converged Location Code length */
#define HVCS_CLC_LENGTH 79
/**
* hvcs_partner_info - an element in a list of partner info
* @node: list_head denoting this partner_info struct's position in the list of
* partner info.
* @unit_address: The partner unit address of this entry.
* @partition_ID: The partner partition ID of this entry.
* @location_code: The converged location code of this entry + 1 char for the
* null-term.
*
* This structure outlines the format that partner info is presented to a caller
* of the hvcs partner info fetching functions. These are strung together into
* a list using linux kernel lists.
*/
struct hvcs_partner_info {
struct list_head node;
uint32_t unit_address;
uint32_t partition_ID;
char location_code[HVCS_CLC_LENGTH + 1]; /* CLC + 1 null-term char */
};
extern int hvcs_free_partner_info(struct list_head *head);
extern int hvcs_get_partner_info(uint32_t unit_address,
struct list_head *head, unsigned long *pi_buff);
extern int hvcs_register_connection(uint32_t unit_address,
uint32_t p_partition_ID, uint32_t p_unit_address);
extern int hvcs_free_connection(uint32_t unit_address);
#endif /* __KERNEL__ */
#endif /* _PPC64_HVCSERVER_H */