1 /***********************license start***************
2 * Author: Cavium Networks
4 * Contact: support@caviumnetworks.com
5 * This file is part of the OCTEON SDK
7 * Copyright (c) 2003-2008 Cavium Networks
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.
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
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/.
24 * This file may also be available under a different license from Cavium.
25 * Contact Cavium Networks for more information
26 ***********************license end**************************************/
29 * File defining checks for different Octeon features.
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>
38 /* CN68XX uses port kinds for packet interface */
40 /* CN68XX has different fields in word0 - word2 */
41 OCTEON_FEATURE_CN68XX_WQE,
43 * Octeon models in the CN5XXX family and higher support
44 * atomic add instructions to memory (saa/saad).
47 /* Does this Octeon support the ZIP offload engine? */
49 /* Does this Octeon support crypto acceleration using COP2? */
50 OCTEON_FEATURE_CRYPTO,
51 OCTEON_FEATURE_DORM_CRYPTO,
52 /* Does this Octeon support PCI express? */
54 /* Does this Octeon support SRIOs */
56 /* Does this Octeon support Interlaken */
58 /* Some Octeon models support internal memory for storing
59 * cryptographic keys */
60 OCTEON_FEATURE_KEY_MEMORY,
61 /* Octeon has a LED controller for banks of external LEDs */
62 OCTEON_FEATURE_LED_CONTROLLER,
63 /* Octeon has a trace buffer */
65 /* Octeon has a management port */
66 OCTEON_FEATURE_MGMT_PORT,
67 /* Octeon has a raid unit */
69 /* Octeon has a builtin USB */
71 /* Octeon IPD can run without using work queue entries */
72 OCTEON_FEATURE_NO_WPTR,
73 /* Octeon has DFA state machines */
75 /* Octeon MDIO block supports clause 45 transactions for 10
77 OCTEON_FEATURE_MDIO_CLAUSE_45,
79 * CN52XX and CN56XX used a block named NPEI for PCIe
80 * access. Newer chips replaced this with SLI+DPI.
89 static inline int cvmx_fuse_read(int fuse);
92 * Determine if the current Octeon supports a specific feature. These
93 * checks have been optimized to be fairly quick, but they should still
94 * be kept out of fast path code.
96 * @feature: Feature to check for. This should always be a constant so the
97 * compiler can remove the switch statement through optimization.
99 * Returns Non zero if the feature exists. Zero if the feature does not
102 static inline int octeon_has_feature(enum octeon_feature feature)
105 case OCTEON_FEATURE_SAAD:
106 return !OCTEON_IS_MODEL(OCTEON_CN3XXX);
108 case OCTEON_FEATURE_ZIP:
109 if (OCTEON_IS_MODEL(OCTEON_CN30XX)
110 || OCTEON_IS_MODEL(OCTEON_CN50XX)
111 || OCTEON_IS_MODEL(OCTEON_CN52XX))
113 else if (OCTEON_IS_MODEL(OCTEON_CN38XX_PASS1))
116 return !cvmx_fuse_read(121);
118 case OCTEON_FEATURE_CRYPTO:
119 if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
120 union cvmx_mio_fus_dat2 fus_2;
121 fus_2.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT2);
122 if (fus_2.s.nocrypto || fus_2.s.nomul) {
124 } else if (!fus_2.s.dorm_crypto) {
127 union cvmx_rnm_ctl_status st;
128 st.u64 = cvmx_read_csr(CVMX_RNM_CTL_STATUS);
132 return !cvmx_fuse_read(90);
135 case OCTEON_FEATURE_DORM_CRYPTO:
136 if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
137 union cvmx_mio_fus_dat2 fus_2;
138 fus_2.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT2);
139 return !fus_2.s.nocrypto && !fus_2.s.nomul && fus_2.s.dorm_crypto;
144 case OCTEON_FEATURE_PCIE:
145 return OCTEON_IS_MODEL(OCTEON_CN56XX)
146 || OCTEON_IS_MODEL(OCTEON_CN52XX)
147 || OCTEON_IS_MODEL(OCTEON_CN6XXX);
149 case OCTEON_FEATURE_SRIO:
150 return OCTEON_IS_MODEL(OCTEON_CN63XX)
151 || OCTEON_IS_MODEL(OCTEON_CN66XX);
153 case OCTEON_FEATURE_ILK:
154 return (OCTEON_IS_MODEL(OCTEON_CN68XX));
156 case OCTEON_FEATURE_KEY_MEMORY:
157 return OCTEON_IS_MODEL(OCTEON_CN38XX)
158 || OCTEON_IS_MODEL(OCTEON_CN58XX)
159 || OCTEON_IS_MODEL(OCTEON_CN56XX)
160 || OCTEON_IS_MODEL(OCTEON_CN6XXX);
162 case OCTEON_FEATURE_LED_CONTROLLER:
163 return OCTEON_IS_MODEL(OCTEON_CN38XX)
164 || OCTEON_IS_MODEL(OCTEON_CN58XX)
165 || OCTEON_IS_MODEL(OCTEON_CN56XX);
167 case OCTEON_FEATURE_TRA:
168 return !(OCTEON_IS_MODEL(OCTEON_CN30XX)
169 || OCTEON_IS_MODEL(OCTEON_CN50XX));
170 case OCTEON_FEATURE_MGMT_PORT:
171 return OCTEON_IS_MODEL(OCTEON_CN56XX)
172 || OCTEON_IS_MODEL(OCTEON_CN52XX)
173 || OCTEON_IS_MODEL(OCTEON_CN6XXX);
175 case OCTEON_FEATURE_RAID:
176 return OCTEON_IS_MODEL(OCTEON_CN56XX)
177 || OCTEON_IS_MODEL(OCTEON_CN52XX)
178 || OCTEON_IS_MODEL(OCTEON_CN6XXX);
180 case OCTEON_FEATURE_USB:
181 return !(OCTEON_IS_MODEL(OCTEON_CN38XX)
182 || OCTEON_IS_MODEL(OCTEON_CN58XX));
184 case OCTEON_FEATURE_NO_WPTR:
185 return (OCTEON_IS_MODEL(OCTEON_CN56XX)
186 || OCTEON_IS_MODEL(OCTEON_CN52XX)
187 || OCTEON_IS_MODEL(OCTEON_CN6XXX))
188 && !OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X)
189 && !OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X);
191 case OCTEON_FEATURE_DFA:
192 if (!OCTEON_IS_MODEL(OCTEON_CN38XX)
193 && !OCTEON_IS_MODEL(OCTEON_CN31XX)
194 && !OCTEON_IS_MODEL(OCTEON_CN58XX))
196 else if (OCTEON_IS_MODEL(OCTEON_CN3020))
199 return !cvmx_fuse_read(120);
201 case OCTEON_FEATURE_HFA:
202 if (!OCTEON_IS_MODEL(OCTEON_CN6XXX))
205 return !cvmx_fuse_read(90);
207 case OCTEON_FEATURE_DFM:
208 if (!(OCTEON_IS_MODEL(OCTEON_CN63XX)
209 || OCTEON_IS_MODEL(OCTEON_CN66XX)))
212 return !cvmx_fuse_read(90);
214 case OCTEON_FEATURE_MDIO_CLAUSE_45:
215 return !(OCTEON_IS_MODEL(OCTEON_CN3XXX)
216 || OCTEON_IS_MODEL(OCTEON_CN58XX)
217 || OCTEON_IS_MODEL(OCTEON_CN50XX));
219 case OCTEON_FEATURE_NPEI:
220 return OCTEON_IS_MODEL(OCTEON_CN56XX)
221 || OCTEON_IS_MODEL(OCTEON_CN52XX);
223 case OCTEON_FEATURE_PKND:
224 return OCTEON_IS_MODEL(OCTEON_CN68XX);
226 case OCTEON_FEATURE_CN68XX_WQE:
227 return OCTEON_IS_MODEL(OCTEON_CN68XX);
229 case OCTEON_FEATURE_CIU2:
230 return OCTEON_IS_MODEL(OCTEON_CN68XX);
238 #endif /* __OCTEON_FEATURE_H__ */