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.
94 lines
3.3 KiB
C
94 lines
3.3 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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* Fixes and workaround for Octeon chip errata. This file
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* contains functions called by cvmx-helper to workaround known
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* chip errata. For the most part, code doesn't need to call
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* these functions directly.
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*
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* <hr>$Revision: 52004 $<hr>
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*/
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#ifndef __CVMX_HELPER_ERRATA_H__
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#define __CVMX_HELPER_ERRATA_H__
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/**
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* @INTERNAL
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* Function to adjust internal IPD pointer alignments
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*
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* @return 0 on success
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* !0 on failure
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*/
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extern int __cvmx_helper_errata_fix_ipd_ptr_alignment(void);
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/**
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* This function needs to be called on all Octeon chips with
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* errata PKI-100.
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*
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* The Size field is 8 too large in WQE and next pointers
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*
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* The Size field generated by IPD is 8 larger than it should
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* be. The Size field is <55:40> of both:
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* - WORD3 in the work queue entry, and
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* - the next buffer pointer (which precedes the packet data
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* in each buffer).
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*
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* @param work Work queue entry to fix
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* @return Zero on success. Negative on failure
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*/
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extern int cvmx_helper_fix_ipd_packet_chain(cvmx_wqe_t *work);
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/**
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* Due to errata G-720, the 2nd order CDR circuit on CN52XX pass
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* 1 doesn't work properly. The following code disables 2nd order
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* CDR for the specified QLM.
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*
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* @param qlm QLM to disable 2nd order CDR for.
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*/
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extern void __cvmx_helper_errata_qlm_disable_2nd_order_cdr(int qlm);
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#endif
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