freebsd-skq/sys/contrib/octeon-sdk/cvmx-helper-fpa.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
 *
 * Helper functions for FPA setup.
 *
 * <hr>$Revision: 49448 $<hr>
 */
#ifndef __CVMX_HELPER_H_FPA__
#define __CVMX_HELPER_H_FPA__

/**
 * Allocate memory and initialize the FPA pools using memory
 * from cvmx-bootmem. Sizes of each element in the pools is
 * controlled by the cvmx-config.h header file. Specifying
 * zero for any parameter will cause that FPA pool to not be
 * setup. This is useful if you aren't using some of the
 * hardware and want to save memory.
 *
 * @param packet_buffers
 *               Number of packet buffers to allocate
 * @param work_queue_entries
 *               Number of work queue entries
 * @param pko_buffers
 *               PKO Command buffers. You should at minimum have two per
 *               each PKO queue.
 * @param tim_buffers
 *               TIM ring buffer command queues. At least two per timer bucket
 *               is recommended.
 * @param dfa_buffers
 *               DFA command buffer. A relatively small (32 for example)
 *               number should work.
 * @return Zero on success, non-zero if out of memory
 */
extern int cvmx_helper_initialize_fpa(int packet_buffers, int work_queue_entries,
                                      int pko_buffers, int tim_buffers,
                                      int dfa_buffers);

#endif  /* __CVMX_HELPER_H__ */