1#- 2# Copyright (c) 2016 Alexander Motin <mav@FreeBSD.org> 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions 7# are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24# SUCH DAMAGE. 25# 26# $FreeBSD$ 27# 28 29#include <sys/bus.h> 30#include <machine/bus.h> 31 32INTERFACE ntb; 33 34HEADER { 35 enum ntb_speed { 36 NTB_SPEED_AUTO = -1, 37 NTB_SPEED_NONE = 0, 38 NTB_SPEED_GEN1 = 1, 39 NTB_SPEED_GEN2 = 2, 40 NTB_SPEED_GEN3 = 3, 41 NTB_SPEED_GEN4 = 4, 42 }; 43 44 enum ntb_width { 45 NTB_WIDTH_AUTO = -1, 46 NTB_WIDTH_NONE = 0, 47 NTB_WIDTH_1 = 1, 48 NTB_WIDTH_2 = 2, 49 NTB_WIDTH_4 = 4, 50 NTB_WIDTH_8 = 8, 51 NTB_WIDTH_12 = 12, 52 NTB_WIDTH_16 = 16, 53 NTB_WIDTH_32 = 32, 54 }; 55 56 typedef void (*ntb_db_callback)(void *data, uint32_t vector); 57 typedef void (*ntb_event_callback)(void *data); 58 struct ntb_ctx_ops { 59 ntb_event_callback link_event; 60 ntb_db_callback db_event; 61 }; 62}; 63 64METHOD bool link_is_up { 65 device_t ntb; 66 enum ntb_speed *speed; 67 enum ntb_width *width; 68}; 69 70METHOD int link_enable { 71 device_t ntb; 72 enum ntb_speed speed; 73 enum ntb_width width; 74}; 75 76METHOD int link_disable { 77 device_t ntb; 78}; 79 80METHOD bool link_enabled { 81 device_t ntb; 82}; 83 84METHOD int set_ctx { 85 device_t ntb; 86 void *ctx; 87 const struct ntb_ctx_ops *ctx_ops; 88}; 89 90METHOD void * get_ctx { 91 device_t ntb; 92 const struct ntb_ctx_ops **ctx_ops; 93}; 94 95METHOD void clear_ctx { 96 device_t ntb; 97}; 98 99METHOD uint8_t mw_count { 100 device_t ntb; 101}; 102 103METHOD int mw_get_range { 104 device_t ntb; 105 unsigned mw_idx; 106 vm_paddr_t *base; 107 caddr_t *vbase; 108 size_t *size; 109 size_t *align; 110 size_t *align_size; 111 bus_addr_t *plimit; 112}; 113 114METHOD int mw_set_trans { 115 device_t ntb; 116 unsigned mw_idx; 117 bus_addr_t addr; 118 size_t size; 119}; 120 121METHOD int mw_clear_trans { 122 device_t ntb; 123 unsigned mw_idx; 124}; 125 126METHOD int mw_get_wc { 127 device_t ntb; 128 unsigned mw_idx; 129 vm_memattr_t *mode; 130}; 131 132METHOD int mw_set_wc { 133 device_t ntb; 134 unsigned mw_idx; 135 vm_memattr_t mode; 136}; 137 138METHOD uint8_t spad_count { 139 device_t ntb; 140}; 141 142METHOD void spad_clear { 143 device_t ntb; 144}; 145 146METHOD int spad_write { 147 device_t ntb; 148 unsigned int idx; 149 uint32_t val; 150}; 151 152METHOD int spad_read { 153 device_t ntb; 154 unsigned int idx; 155 uint32_t *val; 156}; 157 158METHOD int peer_spad_write { 159 device_t ntb; 160 unsigned int idx; 161 uint32_t val; 162}; 163 164METHOD int peer_spad_read { 165 device_t ntb; 166 unsigned int idx; 167 uint32_t *val; 168}; 169 170METHOD uint64_t db_valid_mask { 171 device_t ntb; 172}; 173 174METHOD int db_vector_count { 175 device_t ntb; 176}; 177 178METHOD uint64_t db_vector_mask { 179 device_t ntb; 180 uint32_t vector; 181}; 182 183METHOD int peer_db_addr { 184 device_t ntb; 185 bus_addr_t *db_addr; 186 vm_size_t *db_size; 187}; 188 189METHOD void db_clear { 190 device_t ntb; 191 uint64_t bits; 192}; 193 194METHOD void db_clear_mask { 195 device_t ntb; 196 uint64_t bits; 197}; 198 199METHOD uint64_t db_read { 200 device_t ntb; 201}; 202 203METHOD void db_set_mask { 204 device_t ntb; 205 uint64_t bits; 206}; 207 208METHOD void peer_db_set { 209 device_t ntb; 210 uint64_t bits; 211}; 212