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