octeon-feature.h (6533B)
1/***********************license start*************** 2 * Author: Cavium Networks 3 * 4 * Contact: support@caviumnetworks.com 5 * This file is part of the OCTEON SDK 6 * 7 * Copyright (c) 2003-2008 Cavium Networks 8 * 9 * This file is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License, Version 2, as 11 * published by the Free Software Foundation. 12 * 13 * This file is distributed in the hope that it will be useful, but 14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty 15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or 16 * NONINFRINGEMENT. See the GNU General Public License for more 17 * details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this file; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 22 * or visit http://www.gnu.org/licenses/. 23 * 24 * This file may also be available under a different license from Cavium. 25 * Contact Cavium Networks for more information 26 ***********************license end**************************************/ 27 28/* 29 * File defining checks for different Octeon features. 30 */ 31 32#ifndef __OCTEON_FEATURE_H__ 33#define __OCTEON_FEATURE_H__ 34#include <asm/octeon/cvmx-mio-defs.h> 35#include <asm/octeon/cvmx-rnm-defs.h> 36 37enum octeon_feature { 38 /* CN68XX uses port kinds for packet interface */ 39 OCTEON_FEATURE_PKND, 40 /* CN68XX has different fields in word0 - word2 */ 41 OCTEON_FEATURE_CN68XX_WQE, 42 /* 43 * Octeon models in the CN5XXX family and higher support 44 * atomic add instructions to memory (saa/saad). 45 */ 46 OCTEON_FEATURE_SAAD, 47 /* Does this Octeon support the ZIP offload engine? */ 48 OCTEON_FEATURE_ZIP, 49 OCTEON_FEATURE_DORM_CRYPTO, 50 /* Does this Octeon support PCI express? */ 51 OCTEON_FEATURE_PCIE, 52 /* Does this Octeon support SRIOs */ 53 OCTEON_FEATURE_SRIO, 54 /* Does this Octeon support Interlaken */ 55 OCTEON_FEATURE_ILK, 56 /* Some Octeon models support internal memory for storing 57 * cryptographic keys */ 58 OCTEON_FEATURE_KEY_MEMORY, 59 /* Octeon has a LED controller for banks of external LEDs */ 60 OCTEON_FEATURE_LED_CONTROLLER, 61 /* Octeon has a trace buffer */ 62 OCTEON_FEATURE_TRA, 63 /* Octeon has a management port */ 64 OCTEON_FEATURE_MGMT_PORT, 65 /* Octeon has a raid unit */ 66 OCTEON_FEATURE_RAID, 67 /* Octeon has a builtin USB */ 68 OCTEON_FEATURE_USB, 69 /* Octeon IPD can run without using work queue entries */ 70 OCTEON_FEATURE_NO_WPTR, 71 /* Octeon has DFA state machines */ 72 OCTEON_FEATURE_DFA, 73 /* Octeon MDIO block supports clause 45 transactions for 10 74 * Gig support */ 75 OCTEON_FEATURE_MDIO_CLAUSE_45, 76 /* 77 * CN52XX and CN56XX used a block named NPEI for PCIe 78 * access. Newer chips replaced this with SLI+DPI. 79 */ 80 OCTEON_FEATURE_NPEI, 81 OCTEON_FEATURE_HFA, 82 OCTEON_FEATURE_DFM, 83 OCTEON_FEATURE_CIU2, 84 OCTEON_FEATURE_CIU3, 85 /* Octeon has FPA first seen on 78XX */ 86 OCTEON_FEATURE_FPA3, 87 OCTEON_FEATURE_FAU, 88 OCTEON_MAX_FEATURE 89}; 90 91enum octeon_feature_bits { 92 OCTEON_HAS_CRYPTO = 0x0001, /* Crypto acceleration using COP2 */ 93}; 94extern enum octeon_feature_bits __octeon_feature_bits; 95 96/** 97 * octeon_has_crypto() - Check if this OCTEON has crypto acceleration support. 98 * 99 * Returns: Non-zero if the feature exists. Zero if the feature does not exist. 100 */ 101static inline int octeon_has_crypto(void) 102{ 103 return __octeon_feature_bits & OCTEON_HAS_CRYPTO; 104} 105 106/** 107 * Determine if the current Octeon supports a specific feature. These 108 * checks have been optimized to be fairly quick, but they should still 109 * be kept out of fast path code. 110 * 111 * @feature: Feature to check for. This should always be a constant so the 112 * compiler can remove the switch statement through optimization. 113 * 114 * Returns Non zero if the feature exists. Zero if the feature does not 115 * exist. 116 */ 117static inline bool octeon_has_feature(enum octeon_feature feature) 118{ 119 switch (feature) { 120 case OCTEON_FEATURE_SAAD: 121 return !OCTEON_IS_MODEL(OCTEON_CN3XXX); 122 123 case OCTEON_FEATURE_DORM_CRYPTO: 124 if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) { 125 union cvmx_mio_fus_dat2 fus_2; 126 fus_2.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT2); 127 return !fus_2.s.nocrypto && !fus_2.s.nomul && fus_2.s.dorm_crypto; 128 } else { 129 return false; 130 } 131 132 case OCTEON_FEATURE_PCIE: 133 return OCTEON_IS_MODEL(OCTEON_CN56XX) 134 || OCTEON_IS_MODEL(OCTEON_CN52XX) 135 || OCTEON_IS_MODEL(OCTEON_CN6XXX) 136 || OCTEON_IS_MODEL(OCTEON_CN7XXX); 137 138 case OCTEON_FEATURE_SRIO: 139 return OCTEON_IS_MODEL(OCTEON_CN63XX) 140 || OCTEON_IS_MODEL(OCTEON_CN66XX); 141 142 case OCTEON_FEATURE_ILK: 143 return (OCTEON_IS_MODEL(OCTEON_CN68XX)); 144 145 case OCTEON_FEATURE_KEY_MEMORY: 146 return OCTEON_IS_MODEL(OCTEON_CN38XX) 147 || OCTEON_IS_MODEL(OCTEON_CN58XX) 148 || OCTEON_IS_MODEL(OCTEON_CN56XX) 149 || OCTEON_IS_MODEL(OCTEON_CN6XXX); 150 151 case OCTEON_FEATURE_LED_CONTROLLER: 152 return OCTEON_IS_MODEL(OCTEON_CN38XX) 153 || OCTEON_IS_MODEL(OCTEON_CN58XX) 154 || OCTEON_IS_MODEL(OCTEON_CN56XX); 155 156 case OCTEON_FEATURE_TRA: 157 return !(OCTEON_IS_MODEL(OCTEON_CN30XX) 158 || OCTEON_IS_MODEL(OCTEON_CN50XX)); 159 case OCTEON_FEATURE_MGMT_PORT: 160 return OCTEON_IS_MODEL(OCTEON_CN56XX) 161 || OCTEON_IS_MODEL(OCTEON_CN52XX) 162 || OCTEON_IS_MODEL(OCTEON_CN6XXX); 163 164 case OCTEON_FEATURE_RAID: 165 return OCTEON_IS_MODEL(OCTEON_CN56XX) 166 || OCTEON_IS_MODEL(OCTEON_CN52XX) 167 || OCTEON_IS_MODEL(OCTEON_CN6XXX); 168 169 case OCTEON_FEATURE_USB: 170 return !(OCTEON_IS_MODEL(OCTEON_CN38XX) 171 || OCTEON_IS_MODEL(OCTEON_CN58XX)); 172 173 case OCTEON_FEATURE_NO_WPTR: 174 return (OCTEON_IS_MODEL(OCTEON_CN56XX) 175 || OCTEON_IS_MODEL(OCTEON_CN52XX) 176 || OCTEON_IS_MODEL(OCTEON_CN6XXX)) 177 && !OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X) 178 && !OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X); 179 180 case OCTEON_FEATURE_MDIO_CLAUSE_45: 181 return !(OCTEON_IS_MODEL(OCTEON_CN3XXX) 182 || OCTEON_IS_MODEL(OCTEON_CN58XX) 183 || OCTEON_IS_MODEL(OCTEON_CN50XX)); 184 185 case OCTEON_FEATURE_NPEI: 186 return OCTEON_IS_MODEL(OCTEON_CN56XX) 187 || OCTEON_IS_MODEL(OCTEON_CN52XX); 188 189 case OCTEON_FEATURE_PKND: 190 return OCTEON_IS_MODEL(OCTEON_CN68XX); 191 192 case OCTEON_FEATURE_CN68XX_WQE: 193 return OCTEON_IS_MODEL(OCTEON_CN68XX); 194 195 case OCTEON_FEATURE_CIU2: 196 return OCTEON_IS_MODEL(OCTEON_CN68XX); 197 case OCTEON_FEATURE_CIU3: 198 case OCTEON_FEATURE_FPA3: 199 return OCTEON_IS_MODEL(OCTEON_CN78XX) 200 || OCTEON_IS_MODEL(OCTEON_CNF75XX) 201 || OCTEON_IS_MODEL(OCTEON_CN73XX); 202 case OCTEON_FEATURE_FAU: 203 return !(OCTEON_IS_MODEL(OCTEON_CN78XX) 204 || OCTEON_IS_MODEL(OCTEON_CNF75XX) 205 || OCTEON_IS_MODEL(OCTEON_CN73XX)); 206 207 default: 208 break; 209 } 210 return false; 211} 212 213#endif /* __OCTEON_FEATURE_H__ */