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Current File : //sys/contrib/octeon-sdk/cvmx-helper-errata.h |
/***********************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 * * 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: 52004 $<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