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Diffstat (limited to 'octeon-feature.h')
| -rw-r--r-- | octeon-feature.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/octeon-feature.h b/octeon-feature.h new file mode 100644 index 000000000000..6e46f778e0bc --- /dev/null +++ b/octeon-feature.h @@ -0,0 +1,140 @@ +/***********************license start*************** + * Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights + * reserved. + * + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * * Neither the name of Cavium Networks nor the names of + * its contributors may be used to endorse or promote products + * derived from this software without specific prior written + * permission. + * + * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" + * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS + * OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH + * RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY + * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT + * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES + * OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR + * PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET + * POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT + * OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU. + * + * + * For any questions regarding licensing please contact marketing@caviumnetworks.com + * + ***********************license end**************************************/ + + + + + +/** + * @file + * + * File defining checks for different Octeon features. + * + * <hr>$Revision: 30468 $<hr> + */ + +#ifndef __OCTEON_FEATURE_H__ +#define __OCTEON_FEATURE_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum +{ + OCTEON_FEATURE_SAAD, /* Octeon models in the CN5XXX family and higher support atomic add instructions to memory (saa/saad) */ + OCTEON_FEATURE_ZIP, /* Does this Octeon support the ZIP offload engine? */ + OCTEON_FEATURE_CRYPTO, /* Does this Octeon support crypto acceleration using COP2? */ + OCTEON_FEATURE_PCIE, /* Does this Octeon support PCI express? */ + OCTEON_FEATURE_KEY_MEMORY, /* Some Octeon models support internal memory for storing cryptographic keys */ + OCTEON_FEATURE_LED_CONTROLLER, /* Octeon has a LED controller for banks of external LEDs */ + OCTEON_FEATURE_TRA, /* Octeon has a trace buffer */ + OCTEON_FEATURE_MGMT_PORT, /* Octeon has a management port */ + OCTEON_FEATURE_RAID, /* Octeon has a raid unit */ + OCTEON_FEATURE_USB, /* Octeon has a builtin USB */ + OCTEON_FEATURE_NO_WPTR, /* Octeon IPD can run without using work queue entries */ + OCTEON_FEATURE_DFA, /* Octeon has DFA state machines */ + OCTEON_FEATURE_MDIO_CLAUSE_45, /* Octeon MDIO block supports clause 45 transactions for 10 Gig support */ +} octeon_feature_t; + +/** + * Determine if the current Octeon supports a specific feature. These + * checks have been optimized to be fairly quick, but they should still + * be kept out of fast path code. + * + * @param feature Feature to check for. This should always be a constant so the + * compiler can remove the switch statement through optimization. + * + * @return Non zero if the feature exists. Zero if the feature does not + * exist. + */ +static inline int octeon_has_feature(octeon_feature_t feature) +{ + switch (feature) + { + case OCTEON_FEATURE_SAAD: + return !OCTEON_IS_MODEL(OCTEON_CN3XXX); + + case OCTEON_FEATURE_ZIP: + if (OCTEON_IS_MODEL(OCTEON_CN30XX) || OCTEON_IS_MODEL(OCTEON_CN50XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)) + return 0; + else if (OCTEON_IS_MODEL(OCTEON_CN38XX_PASS1)) + return 1; + else + return (!cvmx_fuse_read(121)); + + case OCTEON_FEATURE_CRYPTO: + return (!cvmx_fuse_read(90)); + + case OCTEON_FEATURE_PCIE: + return (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)); + + case OCTEON_FEATURE_KEY_MEMORY: + case OCTEON_FEATURE_LED_CONTROLLER: + return (OCTEON_IS_MODEL(OCTEON_CN38XX) || OCTEON_IS_MODEL(OCTEON_CN58XX) || OCTEON_IS_MODEL(OCTEON_CN56XX)); + case OCTEON_FEATURE_TRA: + return !(OCTEON_IS_MODEL(OCTEON_CN30XX) || OCTEON_IS_MODEL(OCTEON_CN50XX)); + case OCTEON_FEATURE_MGMT_PORT: + return (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)); + case OCTEON_FEATURE_RAID: + return (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)); + case OCTEON_FEATURE_USB: + return !(OCTEON_IS_MODEL(OCTEON_CN38XX) || OCTEON_IS_MODEL(OCTEON_CN58XX)); + case OCTEON_FEATURE_NO_WPTR: + return ((OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)) && + !OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X) && !OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X)); + case OCTEON_FEATURE_DFA: + if (!OCTEON_IS_MODEL(OCTEON_CN38XX) && !OCTEON_IS_MODEL(OCTEON_CN31XX) && !OCTEON_IS_MODEL(OCTEON_CN58XX)) + return 0; + else if (OCTEON_IS_MODEL(OCTEON_CN3020)) + return 0; + else if (OCTEON_IS_MODEL(OCTEON_CN38XX_PASS1)) + return 1; + else + return(!cvmx_fuse_read(120)); + case OCTEON_FEATURE_MDIO_CLAUSE_45: + return (!(OCTEON_IS_MODEL(OCTEON_CN3XXX) || OCTEON_IS_MODEL(OCTEON_CN58XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))); + } + return 0; +} + +#ifdef __cplusplus +} +#endif + +#endif /* __OCTEON_FEATURE_H__ */ |