| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * hvcserver.h |
| 4 | * Copyright (C) 2004 Ryan S Arnold, IBM Corporation |
| 5 | * |
| 6 | * PPC64 virtual I/O console server support. |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | #ifndef _PPC64_HVCSERVER_H |
| 10 | #define _PPC64_HVCSERVER_H |
| 11 | #ifdef __KERNEL__ |
| 12 | |
| 13 | #include <linux/list.h> |
| 14 | |
| 15 | /* Converged Location Code length */ |
| 16 | #define HVCS_CLC_LENGTH 79 |
| 17 | |
| 18 | /** |
| 19 | * hvcs_partner_info - an element in a list of partner info |
| 20 | * @node: list_head denoting this partner_info struct's position in the list of |
| 21 | * partner info. |
| 22 | * @unit_address: The partner unit address of this entry. |
| 23 | * @partition_ID: The partner partition ID of this entry. |
| 24 | * @location_code: The converged location code of this entry + 1 char for the |
| 25 | * null-term. |
| 26 | * |
| 27 | * This structure outlines the format that partner info is presented to a caller |
| 28 | * of the hvcs partner info fetching functions. These are strung together into |
| 29 | * a list using linux kernel lists. |
| 30 | */ |
| 31 | struct hvcs_partner_info { |
| 32 | struct list_head node; |
| 33 | uint32_t unit_address; |
| 34 | uint32_t partition_ID; |
| 35 | char location_code[HVCS_CLC_LENGTH + 1]; /* CLC + 1 null-term char */ |
| 36 | }; |
| 37 | |
| 38 | extern int hvcs_free_partner_info(struct list_head *head); |
| 39 | extern int hvcs_get_partner_info(uint32_t unit_address, |
| 40 | struct list_head *head, unsigned long *pi_buff); |
| 41 | extern int hvcs_register_connection(uint32_t unit_address, |
| 42 | uint32_t p_partition_ID, uint32_t p_unit_address); |
| 43 | extern int hvcs_free_connection(uint32_t unit_address); |
| 44 | |
| 45 | #endif /* __KERNEL__ */ |
| 46 | #endif /* _PPC64_HVCSERVER_H */ |