18c2ecf20Sopenharmony_ci/***********************license start*************** 28c2ecf20Sopenharmony_ci * Author: Cavium Networks 38c2ecf20Sopenharmony_ci * 48c2ecf20Sopenharmony_ci * Contact: support@caviumnetworks.com 58c2ecf20Sopenharmony_ci * This file is part of the OCTEON SDK 68c2ecf20Sopenharmony_ci * 78c2ecf20Sopenharmony_ci * Copyright (c) 2003-2008 Cavium Networks 88c2ecf20Sopenharmony_ci * 98c2ecf20Sopenharmony_ci * This file is free software; you can redistribute it and/or modify 108c2ecf20Sopenharmony_ci * it under the terms of the GNU General Public License, Version 2, as 118c2ecf20Sopenharmony_ci * published by the Free Software Foundation. 128c2ecf20Sopenharmony_ci * 138c2ecf20Sopenharmony_ci * This file is distributed in the hope that it will be useful, but 148c2ecf20Sopenharmony_ci * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty 158c2ecf20Sopenharmony_ci * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or 168c2ecf20Sopenharmony_ci * NONINFRINGEMENT. See the GNU General Public License for more 178c2ecf20Sopenharmony_ci * details. 188c2ecf20Sopenharmony_ci * 198c2ecf20Sopenharmony_ci * You should have received a copy of the GNU General Public License 208c2ecf20Sopenharmony_ci * along with this file; if not, write to the Free Software 218c2ecf20Sopenharmony_ci * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 228c2ecf20Sopenharmony_ci * or visit http://www.gnu.org/licenses/. 238c2ecf20Sopenharmony_ci * 248c2ecf20Sopenharmony_ci * This file may also be available under a different license from Cavium. 258c2ecf20Sopenharmony_ci * Contact Cavium Networks for more information 268c2ecf20Sopenharmony_ci ***********************license end**************************************/ 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ci/* 298c2ecf20Sopenharmony_ci * Packet buffer defines. 308c2ecf20Sopenharmony_ci */ 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_ci#ifndef __CVMX_PACKET_H__ 338c2ecf20Sopenharmony_ci#define __CVMX_PACKET_H__ 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_ci/** 368c2ecf20Sopenharmony_ci * This structure defines a buffer pointer on Octeon 378c2ecf20Sopenharmony_ci */ 388c2ecf20Sopenharmony_ciunion cvmx_buf_ptr { 398c2ecf20Sopenharmony_ci void *ptr; 408c2ecf20Sopenharmony_ci uint64_t u64; 418c2ecf20Sopenharmony_ci struct { 428c2ecf20Sopenharmony_ci#ifdef __BIG_ENDIAN_BITFIELD 438c2ecf20Sopenharmony_ci /* if set, invert the "free" pick of the overall 448c2ecf20Sopenharmony_ci * packet. HW always sets this bit to 0 on inbound 458c2ecf20Sopenharmony_ci * packet */ 468c2ecf20Sopenharmony_ci uint64_t i:1; 478c2ecf20Sopenharmony_ci 488c2ecf20Sopenharmony_ci /* Indicates the amount to back up to get to the 498c2ecf20Sopenharmony_ci * buffer start in cache lines. In most cases this is 508c2ecf20Sopenharmony_ci * less than one complete cache line, so the value is 518c2ecf20Sopenharmony_ci * zero */ 528c2ecf20Sopenharmony_ci uint64_t back:4; 538c2ecf20Sopenharmony_ci /* The pool that the buffer came from / goes to */ 548c2ecf20Sopenharmony_ci uint64_t pool:3; 558c2ecf20Sopenharmony_ci /* The size of the segment pointed to by addr (in bytes) */ 568c2ecf20Sopenharmony_ci uint64_t size:16; 578c2ecf20Sopenharmony_ci /* Pointer to the first byte of the data, NOT buffer */ 588c2ecf20Sopenharmony_ci uint64_t addr:40; 598c2ecf20Sopenharmony_ci#else 608c2ecf20Sopenharmony_ci uint64_t addr:40; 618c2ecf20Sopenharmony_ci uint64_t size:16; 628c2ecf20Sopenharmony_ci uint64_t pool:3; 638c2ecf20Sopenharmony_ci uint64_t back:4; 648c2ecf20Sopenharmony_ci uint64_t i:1; 658c2ecf20Sopenharmony_ci#endif 668c2ecf20Sopenharmony_ci } s; 678c2ecf20Sopenharmony_ci}; 688c2ecf20Sopenharmony_ci 698c2ecf20Sopenharmony_ci#endif /* __CVMX_PACKET_H__ */ 70