18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * hvcserver.h 48c2ecf20Sopenharmony_ci * Copyright (C) 2004 Ryan S Arnold, IBM Corporation 58c2ecf20Sopenharmony_ci * 68c2ecf20Sopenharmony_ci * PPC64 virtual I/O console server support. 78c2ecf20Sopenharmony_ci */ 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci#ifndef _PPC64_HVCSERVER_H 108c2ecf20Sopenharmony_ci#define _PPC64_HVCSERVER_H 118c2ecf20Sopenharmony_ci#ifdef __KERNEL__ 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ci#include <linux/list.h> 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci/* Converged Location Code length */ 168c2ecf20Sopenharmony_ci#define HVCS_CLC_LENGTH 79 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_ci/** 198c2ecf20Sopenharmony_ci * hvcs_partner_info - an element in a list of partner info 208c2ecf20Sopenharmony_ci * @node: list_head denoting this partner_info struct's position in the list of 218c2ecf20Sopenharmony_ci * partner info. 228c2ecf20Sopenharmony_ci * @unit_address: The partner unit address of this entry. 238c2ecf20Sopenharmony_ci * @partition_ID: The partner partition ID of this entry. 248c2ecf20Sopenharmony_ci * @location_code: The converged location code of this entry + 1 char for the 258c2ecf20Sopenharmony_ci * null-term. 268c2ecf20Sopenharmony_ci * 278c2ecf20Sopenharmony_ci * This structure outlines the format that partner info is presented to a caller 288c2ecf20Sopenharmony_ci * of the hvcs partner info fetching functions. These are strung together into 298c2ecf20Sopenharmony_ci * a list using linux kernel lists. 308c2ecf20Sopenharmony_ci */ 318c2ecf20Sopenharmony_cistruct hvcs_partner_info { 328c2ecf20Sopenharmony_ci struct list_head node; 338c2ecf20Sopenharmony_ci uint32_t unit_address; 348c2ecf20Sopenharmony_ci uint32_t partition_ID; 358c2ecf20Sopenharmony_ci char location_code[HVCS_CLC_LENGTH + 1]; /* CLC + 1 null-term char */ 368c2ecf20Sopenharmony_ci}; 378c2ecf20Sopenharmony_ci 388c2ecf20Sopenharmony_ciextern int hvcs_free_partner_info(struct list_head *head); 398c2ecf20Sopenharmony_ciextern int hvcs_get_partner_info(uint32_t unit_address, 408c2ecf20Sopenharmony_ci struct list_head *head, unsigned long *pi_buff); 418c2ecf20Sopenharmony_ciextern int hvcs_register_connection(uint32_t unit_address, 428c2ecf20Sopenharmony_ci uint32_t p_partition_ID, uint32_t p_unit_address); 438c2ecf20Sopenharmony_ciextern int hvcs_free_connection(uint32_t unit_address); 448c2ecf20Sopenharmony_ci 458c2ecf20Sopenharmony_ci#endif /* __KERNEL__ */ 468c2ecf20Sopenharmony_ci#endif /* _PPC64_HVCSERVER_H */ 47