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/***********************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__ */
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