04b6fa8330
facilities as well as support for the Octeon 2 family of SoCs.
XXX Note that with our antediluvian assembler, we can't support some Octeon 2
instructions and fall back to using the old ones instead.
179 lines
7.4 KiB
C
179 lines
7.4 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2010 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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* * 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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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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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 OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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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_DORM_CRYPTO, /**< Can crypto be enabled by calling cvmx_crypto_dormant_enable()? */
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OCTEON_FEATURE_PCIE, /**< Does this Octeon support PCI express? */
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OCTEON_FEATURE_SRIO, /**< Does this Octeon support SRIOs */
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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_NPEI, /**< CN52XX and CN56XX used a block named NPEI for PCIe access. Newer chips replaced this with SLI+DPI */
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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
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return !cvmx_fuse_read(121);
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case OCTEON_FEATURE_CRYPTO:
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if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
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cvmx_mio_fus_dat2_t fus_2;
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fus_2.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT2);
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if (fus_2.s.nocrypto || fus_2.s.nomul) {
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return 0;
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} else if (!fus_2.s.dorm_crypto) {
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return 1;
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} else {
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cvmx_rnm_ctl_status_t st;
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st.u64 = cvmx_read_csr(CVMX_RNM_CTL_STATUS);
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return st.s.eer_val;
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}
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} else {
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return !cvmx_fuse_read(90);
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}
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case OCTEON_FEATURE_DORM_CRYPTO:
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if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
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cvmx_mio_fus_dat2_t fus_2;
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fus_2.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT2);
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return !fus_2.s.nocrypto && !fus_2.s.nomul && fus_2.s.dorm_crypto;
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} else {
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return 0;
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}
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case OCTEON_FEATURE_PCIE:
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return (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX) || OCTEON_IS_MODEL(OCTEON_CN6XXX));
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case OCTEON_FEATURE_SRIO:
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return (OCTEON_IS_MODEL(OCTEON_CN6XXX));
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case OCTEON_FEATURE_KEY_MEMORY:
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return OCTEON_IS_MODEL(OCTEON_CN38XX) || OCTEON_IS_MODEL(OCTEON_CN58XX) || OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN6XXX);
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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) || OCTEON_IS_MODEL(OCTEON_CN6XXX);
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case OCTEON_FEATURE_RAID:
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return OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX) || OCTEON_IS_MODEL(OCTEON_CN6XXX);
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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) || OCTEON_IS_MODEL(OCTEON_CN6XXX)) &&
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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
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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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case OCTEON_FEATURE_NPEI:
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return (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX));
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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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