1/*- 2 * This file is provided under a dual BSD/GPLv2 license. When using or 3 * redistributing this file, you may do so under either license. 4 * 5 * GPL LICENSE SUMMARY 6 * 7 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of version 2 of the GNU General Public License as 11 * published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 21 * The full GNU General Public License is included in this distribution 22 * in the file called LICENSE.GPL. 23 * 24 * BSD LICENSE 25 * 26 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 27 * All rights reserved. 28 * 29 * Redistribution and use in source and binary forms, with or without 30 * modification, are permitted provided that the following conditions 31 * are met: 32 * 33 * * Redistributions of source code must retain the above copyright 34 * notice, this list of conditions and the following disclaimer. 35 * * Redistributions in binary form must reproduce the above copyright 36 * notice, this list of conditions and the following disclaimer in 37 * the documentation and/or other materials provided with the 38 * distribution. 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 41 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 42 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 43 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 44 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 46 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 47 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 48 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 49 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 50 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 51 * 52 * $FreeBSD$ 53 */ 54#ifndef _SCI_CONTROLLER_CONSTANTS_H_ 55#define _SCI_CONTROLLER_CONSTANTS_H_ 56 57#include <sys/param.h> 58 59/** 60 * @file 61 * 62 * @brief This file contains constant values that change based on the type 63 * of core or framework being managed. These constants are exported 64 * in order to provide the user with information as to the bounds 65 * (i.e. how many) of specific objects. 66 */ 67 68#ifdef __cplusplus 69extern "C" { 70#endif // __cplusplus 71 72#ifdef SCIC_SDS_4_ENABLED 73 74#ifndef SCI_MAX_PHYS 75/** 76 * This constant defines the maximum number of phy objects that can be 77 * supported for the SCU Driver Standard (SDS) library. This is tied 78 * directly to silicon capabilities. 79 */ 80#define SCI_MAX_PHYS (4) 81#endif 82 83#ifndef SCI_MAX_PORTS 84/** 85 * This constant defines the maximum number of port objects that can be 86 * supported for the SCU Driver Standard (SDS) library. This is tied 87 * directly to silicon capabilities. 88 */ 89#define SCI_MAX_PORTS SCI_MAX_PHYS 90#endif 91 92#ifndef SCI_MIN_SMP_PHYS 93/** 94 * This constant defines the minimum number of SMP phy objects that 95 * can be supported for a single expander level. 96 * This was determined by using 36 physical phys and room for 2 virtual 97 * phys. 98 */ 99#define SCI_MIN_SMP_PHYS (38) 100#endif 101 102#ifndef SCI_MAX_SMP_PHYS 103/** 104 * This constant defines the maximum number of SMP phy objects that 105 * can be supported for the SCU Driver Standard (SDS) library. 106 * This number can be increased if required. 107 */ 108#define SCI_MAX_SMP_PHYS (384) 109#endif 110 111#ifndef SCI_MAX_REMOTE_DEVICES 112/** 113 * This constant defines the maximum number of remote device objects that 114 * can be supported for the SCU Driver Standard (SDS) library. This is tied 115 * directly to silicon capabilities. 116 */ 117#define SCI_MAX_REMOTE_DEVICES (256) 118#endif 119 120#ifndef SCI_MIN_REMOTE_DEVICES 121/** 122 * This constant defines the minimum number of remote device objects that 123 * can be supported for the SCU Driver Standard (SDS) library. This # can 124 * be configured for minimum memory environments to any value less than 125 * SCI_MAX_REMOTE_DEVICES 126 */ 127#define SCI_MIN_REMOTE_DEVICES (16) 128#endif 129 130#ifndef SCI_MAX_IO_REQUESTS 131/** 132 * This constant defines the maximum number of IO request objects that 133 * can be supported for the SCU Driver Standard (SDS) library. This is tied 134 * directly to silicon capabilities. 135 */ 136#define SCI_MAX_IO_REQUESTS (256) 137#endif 138 139#ifndef SCI_MIN_IO_REQUESTS 140/** 141 * This constant defines the minimum number of IO request objects that 142 * can be supported for the SCU Driver Standard (SDS) library. This # 143 * can be configured for minimum memory environments to any value less 144 * than SCI_MAX_IO_REQUESTS. 145 */ 146#define SCI_MIN_IO_REQUESTS (1) 147#endif 148 149#ifndef SCI_MAX_SCATTER_GATHER_ELEMENTS 150/** 151 * This constant defines the maximum number of Scatter-Gather Elements 152 * to be used by any SCI component. 153 * 154 * Note: number of elements must be an even number, since descriptors 155 * posted to hardware always contain pairs of elements (with second 156 * element set to zeroes if not needed). 157 */ 158#define __MAXPHYS_ELEMENTS ((MAXPHYS / PAGE_SIZE) + 1) 159#define SCI_MAX_SCATTER_GATHER_ELEMENTS ((__MAXPHYS_ELEMENTS + 1) & ~0x1) 160#endif 161 162#ifndef SCI_MIN_SCATTER_GATHER_ELEMENTS 163/** 164 * This constant defines the minimum number of Scatter-Gather Elements 165 * to be used by any SCI component. 166 */ 167#define SCI_MIN_SCATTER_GATHER_ELEMENTS 1 168#endif 169 170#else // SCIC_SDS_4_ENABLED 171 172#error "SCI Core configuration left unspecified (e.g. SCIC_SDS_4_ENABLED)" 173 174#endif // SCIC_SDS_4_ENABLED 175 176/** 177 * This constant defines the maximum number of PCI devices that can be supported 178 * by the driver. 179 */ 180#define SCI_MAX_PCI_DEVICES (2) 181 182/** 183 * This constant defines the maximum number of controllers that can 184 * occur in a single silicon package. 185 */ 186#define SCI_MAX_CONTROLLERS_PER_PCI_DEVICE (2) 187 188/** 189 * This constant defines the maximum number of controllers that can 190 * be supported by a library object. The user specified maximum controller 191 * count must be less than or equal to this number. This is a driver 192 * specific constant that is not tied to silicon capabilities. 193 */ 194#if !defined(SCI_MAX_CONTROLLERS) 195#define SCI_MAX_CONTROLLERS (2) 196#endif 197 198#ifndef SCI_MAX_MSIX_MESSAGES_PER_CONTROLLER 199/** 200 * This constant defines the maximum number of MSI-X interrupt vectors/messages 201 * supported for an SCU hardware controller instance. 202 */ 203#define SCI_MAX_MSIX_MESSAGES_PER_CONTROLLER (2) 204#endif 205 206/** 207 * This constant defines the maximum number of MSI-X interrupt vectors/messages 208 * supported for an SCU device. 209 */ 210#define SCI_MAX_MSIX_MESSAGES \ 211 (SCI_MAX_MSIX_MESSAGES_PER_CONTROLLER * SCI_MAX_CONTROLLERS) 212 213/** 214 * The maximum number of supported domain objects is currently tied to the 215 * maximum number of support port objects. 216 */ 217#define SCI_MAX_DOMAINS SCI_MAX_PORTS 218 219#ifdef __cplusplus 220} 221#endif // __cplusplus 222 223#endif // _SCI_CONTROLLER_CONSTANTS_H_ 224 225