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/***********************license start***************
* Copyright (c) 2003-2010 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.
* This Software, including technical data, may be subject to U.S. export control
* laws, including the U.S. Export Administration Act and its associated
* regulations, and may be subject to export or import regulations in other
* countries.
* 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.
***********************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_DORM_CRYPTO, /**< Can crypto be enabled by calling cvmx_crypto_dormant_enable()? */
OCTEON_FEATURE_PCIE, /**< Does this Octeon support PCI express? */
OCTEON_FEATURE_SRIO, /**< Does this Octeon support SRIOs */
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_NPEI, /**< CN52XX and CN56XX used a block named NPEI for PCIe access. Newer chips replaced this with SLI+DPI */
} 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
return !cvmx_fuse_read(121);
case OCTEON_FEATURE_CRYPTO:
if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
cvmx_mio_fus_dat2_t fus_2;
fus_2.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT2);
if (fus_2.s.nocrypto || fus_2.s.nomul) {
return 0;
} else if (!fus_2.s.dorm_crypto) {
return 1;
} else {
cvmx_rnm_ctl_status_t st;
st.u64 = cvmx_read_csr(CVMX_RNM_CTL_STATUS);
return st.s.eer_val;
}
} else {
return !cvmx_fuse_read(90);
}
case OCTEON_FEATURE_DORM_CRYPTO:
if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
cvmx_mio_fus_dat2_t fus_2;
fus_2.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT2);
return !fus_2.s.nocrypto && !fus_2.s.nomul && fus_2.s.dorm_crypto;
} else {
return 0;
}
case OCTEON_FEATURE_PCIE:
return (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX) || OCTEON_IS_MODEL(OCTEON_CN6XXX));
case OCTEON_FEATURE_SRIO:
return (OCTEON_IS_MODEL(OCTEON_CN6XXX));
case OCTEON_FEATURE_KEY_MEMORY:
return OCTEON_IS_MODEL(OCTEON_CN38XX) || OCTEON_IS_MODEL(OCTEON_CN58XX) || OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN6XXX);
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) || OCTEON_IS_MODEL(OCTEON_CN6XXX);
case OCTEON_FEATURE_RAID:
return OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX) || OCTEON_IS_MODEL(OCTEON_CN6XXX);
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_CN6XXX)) &&
!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
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));
case OCTEON_FEATURE_NPEI:
return (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX));
}
return 0;
}
#ifdef __cplusplus
}
#endif
#endif /* __OCTEON_FEATURE_H__ */
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