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/***********************license start***************
* Copyright (c) 2003-2010 Cavium Inc. (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 Inc. 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 INC. 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
*
* Fixes and workaround for Octeon chip errata. This file
* contains functions called by cvmx-helper to workaround known
* chip errata. For the most part, code doesn't need to call
* these functions directly.
*
* <hr>$Revision: 70030 $<hr>
*/
#ifndef __CVMX_HELPER_ERRATA_H__
#define __CVMX_HELPER_ERRATA_H__
/**
* @INTERNAL
* Function to adjust internal IPD pointer alignments
*
* @return 0 on success
* !0 on failure
*/
extern int __cvmx_helper_errata_fix_ipd_ptr_alignment(void);
/**
* This function needs to be called on all Octeon chips with
* errata PKI-100.
*
* The Size field is 8 too large in WQE and next pointers
*
* The Size field generated by IPD is 8 larger than it should
* be. The Size field is <55:40> of both:
* - WORD3 in the work queue entry, and
* - the next buffer pointer (which precedes the packet data
* in each buffer).
*
* @param work Work queue entry to fix
* @return Zero on success. Negative on failure
*/
extern int cvmx_helper_fix_ipd_packet_chain(cvmx_wqe_t *work);
/**
* Due to errata G-720, the 2nd order CDR circuit on CN52XX pass
* 1 doesn't work properly. The following code disables 2nd order
* CDR for the specified QLM.
*
* @param qlm QLM to disable 2nd order CDR for.
*/
extern void __cvmx_helper_errata_qlm_disable_2nd_order_cdr(int qlm);
#endif
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