1210284Sjmallett/***********************license start*************** 2232812Sjmallett * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights 3215990Sjmallett * reserved. 4210284Sjmallett * 5210284Sjmallett * 6215990Sjmallett * Redistribution and use in source and binary forms, with or without 7215990Sjmallett * modification, are permitted provided that the following conditions are 8215990Sjmallett * met: 9210284Sjmallett * 10215990Sjmallett * * Redistributions of source code must retain the above copyright 11215990Sjmallett * notice, this list of conditions and the following disclaimer. 12210284Sjmallett * 13215990Sjmallett * * Redistributions in binary form must reproduce the above 14215990Sjmallett * copyright notice, this list of conditions and the following 15215990Sjmallett * disclaimer in the documentation and/or other materials provided 16215990Sjmallett * with the distribution. 17210284Sjmallett 18232812Sjmallett * * Neither the name of Cavium Inc. nor the names of 19215990Sjmallett * its contributors may be used to endorse or promote products 20215990Sjmallett * derived from this software without specific prior written 21215990Sjmallett * permission. 22210284Sjmallett 23215990Sjmallett * This Software, including technical data, may be subject to U.S. export control 24215990Sjmallett * laws, including the U.S. Export Administration Act and its associated 25215990Sjmallett * regulations, and may be subject to export or import regulations in other 26215990Sjmallett * countries. 27210284Sjmallett 28215990Sjmallett * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 29232812Sjmallett * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR 30215990Sjmallett * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO 31215990Sjmallett * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR 32215990Sjmallett * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM 33215990Sjmallett * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, 34215990Sjmallett * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF 35215990Sjmallett * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR 36215990Sjmallett * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR 37215990Sjmallett * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. 38215990Sjmallett ***********************license end**************************************/ 39210284Sjmallett 40210284Sjmallett 41210284Sjmallett/** 42210284Sjmallett * @file 43210284Sjmallett * 44210284Sjmallett * Packet buffer defines. 45210284Sjmallett * 46232812Sjmallett * <hr>$Revision: 70030 $<hr> 47210284Sjmallett * 48210284Sjmallett */ 49210284Sjmallett 50210284Sjmallett#ifndef __CVMX_PACKET_H__ 51210284Sjmallett#define __CVMX_PACKET_H__ 52210284Sjmallett 53210284Sjmallett#ifdef __cplusplus 54210284Sjmallettextern "C" { 55210284Sjmallett#endif 56210284Sjmallett 57210284Sjmallett/** 58210284Sjmallett * This structure defines a buffer pointer on Octeon 59210284Sjmallett */ 60215990Sjmallettunion cvmx_buf_ptr { 61210284Sjmallett void* ptr; 62210284Sjmallett uint64_t u64; 63210284Sjmallett struct 64210284Sjmallett { 65210284Sjmallett uint64_t i : 1; /**< if set, invert the "free" pick of the overall packet. HW always sets this bit to 0 on inbound packet */ 66210284Sjmallett uint64_t back : 4; /**< Indicates the amount to back up to get to the buffer start in cache lines. In most cases 67210284Sjmallett this is less than one complete cache line, so the value is zero */ 68210284Sjmallett uint64_t pool : 3; /**< The pool that the buffer came from / goes to */ 69210284Sjmallett uint64_t size :16; /**< The size of the segment pointed to by addr (in bytes) */ 70210284Sjmallett uint64_t addr :40; /**< Pointer to the first byte of the data, NOT buffer */ 71210284Sjmallett } s; 72215990Sjmallett}; 73210284Sjmallett 74215990Sjmalletttypedef union cvmx_buf_ptr cvmx_buf_ptr_t; 75215990Sjmallett 76210284Sjmallett#ifdef __cplusplus 77210284Sjmallett} 78210284Sjmallett#endif 79210284Sjmallett 80210284Sjmallett#endif /* __CVMX_PACKET_H__ */ 81210284Sjmallett 82