dc4ee6ca91
make use of it where possible. This primarily brings in support for newer hardware, and FreeBSD is not yet able to support the abundance of IRQs on new hardware and many features in the Ethernet driver. Because of the changes to IRQs in the Simple Executive, we have to maintain our own list of Octeon IRQs now, which probably can be pared-down and be specific to the CIU interrupt unit soon, and when other interrupt mechanisms are added they can maintain their own definitions. Remove unmasking of interrupts from within the UART device now that the function used is no longer present in the Simple Executive. The unmasking seems to have been gratuitous as this is more properly handled by the buses above the UART device, and seems to work on that basis.
247 lines
8.8 KiB
C
247 lines
8.8 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Cavium Inc. nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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***********************license end**************************************/
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/**
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* @file
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*
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* Helper functions for FPA setup.
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*
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* <hr>$Revision: 70030 $<hr>
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*/
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#include "cvmx.h"
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#include "cvmx-bootmem.h"
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#include "cvmx-fpa.h"
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#include "cvmx-helper-fpa.h"
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/**
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* @INTERNAL
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* Allocate memory for and initialize a single FPA pool.
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*
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* @param pool Pool to initialize
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* @param buffer_size Size of buffers to allocate in bytes
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* @param buffers Number of buffers to put in the pool. Zero is allowed
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* @param name String name of the pool for debugging purposes
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* @return Zero on success, non-zero on failure
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*/
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static int __cvmx_helper_initialize_fpa_pool(int pool, uint64_t buffer_size,
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uint64_t buffers, const char *name)
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{
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uint64_t current_num;
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void *memory;
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uint64_t align = CVMX_CACHE_LINE_SIZE;
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/* Align the allocation so that power of 2 size buffers are naturally aligned */
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while (align < buffer_size)
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align = align << 1;
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if (buffers == 0)
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return 0;
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current_num = cvmx_read_csr(CVMX_FPA_QUEX_AVAILABLE(pool));
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if (current_num)
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{
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cvmx_dprintf("Fpa pool %d(%s) already has %llu buffers. Skipping setup.\n",
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pool, name, (unsigned long long)current_num);
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return 0;
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}
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memory = cvmx_bootmem_alloc(buffer_size * buffers, align);
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if (memory == NULL)
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{
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cvmx_dprintf("Out of memory initializing fpa pool %d(%s).\n", pool, name);
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return -1;
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}
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cvmx_fpa_setup_pool(pool, name, memory, buffer_size, buffers);
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return 0;
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}
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/**
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* @INTERNAL
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* Allocate memory and initialize the FPA pools using memory
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* from cvmx-bootmem. Specifying zero for the number of
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* buffers will cause that FPA pool to not be setup. This is
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* useful if you aren't using some of the hardware and want
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* to save memory. Use cvmx_helper_initialize_fpa instead of
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* this function directly.
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*
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* @param pip_pool Should always be CVMX_FPA_PACKET_POOL
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* @param pip_size Should always be CVMX_FPA_PACKET_POOL_SIZE
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* @param pip_buffers
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* Number of packet buffers.
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* @param wqe_pool Should always be CVMX_FPA_WQE_POOL
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* @param wqe_size Should always be CVMX_FPA_WQE_POOL_SIZE
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* @param wqe_entries
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* Number of work queue entries
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* @param pko_pool Should always be CVMX_FPA_OUTPUT_BUFFER_POOL
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* @param pko_size Should always be CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE
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* @param pko_buffers
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* PKO Command buffers. You should at minimum have two per
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* each PKO queue.
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* @param tim_pool Should always be CVMX_FPA_TIMER_POOL
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* @param tim_size Should always be CVMX_FPA_TIMER_POOL_SIZE
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* @param tim_buffers
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* TIM ring buffer command queues. At least two per timer bucket
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* is recommended.
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* @param dfa_pool Should always be CVMX_FPA_DFA_POOL
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* @param dfa_size Should always be CVMX_FPA_DFA_POOL_SIZE
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* @param dfa_buffers
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* DFA command buffer. A relatively small (32 for example)
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* number should work.
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* @return Zero on success, non-zero if out of memory
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*/
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static int __cvmx_helper_initialize_fpa(int pip_pool, int pip_size, int pip_buffers,
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int wqe_pool, int wqe_size, int wqe_entries,
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int pko_pool, int pko_size, int pko_buffers,
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int tim_pool, int tim_size, int tim_buffers,
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int dfa_pool, int dfa_size, int dfa_buffers)
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{
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int status;
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cvmx_fpa_enable();
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if ((pip_buffers > 0) && (pip_buffers <= 64))
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cvmx_dprintf("Warning: %d packet buffers may not be enough for hardware"
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" prefetch. 65 or more is recommended.\n", pip_buffers);
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if (pip_pool >= 0)
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{
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status = __cvmx_helper_initialize_fpa_pool(pip_pool, pip_size, pip_buffers,
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"Packet Buffers");
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if (status)
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return status;
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}
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if (wqe_pool >= 0)
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{
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status = __cvmx_helper_initialize_fpa_pool(wqe_pool, wqe_size, wqe_entries,
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"Work Queue Entries");
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if (status)
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return status;
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}
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if (pko_pool >= 0)
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{
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status = __cvmx_helper_initialize_fpa_pool(pko_pool, pko_size, pko_buffers,
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"PKO Command Buffers");
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if (status)
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return status;
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}
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if (tim_pool >= 0)
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{
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status = __cvmx_helper_initialize_fpa_pool(tim_pool, tim_size, tim_buffers,
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"TIM Command Buffers");
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if (status)
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return status;
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}
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if (dfa_pool >= 0)
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{
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status = __cvmx_helper_initialize_fpa_pool(dfa_pool, dfa_size, dfa_buffers,
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"DFA Command Buffers");
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if (status)
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return status;
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}
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return 0;
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}
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/**
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* Allocate memory and initialize the FPA pools using memory
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* from cvmx-bootmem. Sizes of each element in the pools is
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* controlled by the cvmx-config.h header file. Specifying
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* zero for any parameter will cause that FPA pool to not be
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* setup. This is useful if you aren't using some of the
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* hardware and want to save memory.
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*
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* @param packet_buffers
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* Number of packet buffers to allocate
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* @param work_queue_entries
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* Number of work queue entries
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* @param pko_buffers
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* PKO Command buffers. You should at minimum have two per
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* each PKO queue.
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* @param tim_buffers
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* TIM ring buffer command queues. At least two per timer bucket
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* is recommended.
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* @param dfa_buffers
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* DFA command buffer. A relatively small (32 for example)
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* number should work.
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* @return Zero on success, non-zero if out of memory
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*/
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int cvmx_helper_initialize_fpa(int packet_buffers, int work_queue_entries,
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int pko_buffers, int tim_buffers, int dfa_buffers)
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{
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#ifndef CVMX_FPA_PACKET_POOL
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#define CVMX_FPA_PACKET_POOL -1
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#define CVMX_FPA_PACKET_POOL_SIZE 0
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#endif
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#ifndef CVMX_FPA_WQE_POOL
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#define CVMX_FPA_WQE_POOL -1
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#define CVMX_FPA_WQE_POOL_SIZE 0
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#endif
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#ifndef CVMX_FPA_OUTPUT_BUFFER_POOL
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#define CVMX_FPA_OUTPUT_BUFFER_POOL -1
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#define CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE 0
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#endif
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#ifndef CVMX_FPA_TIMER_POOL
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#define CVMX_FPA_TIMER_POOL -1
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#define CVMX_FPA_TIMER_POOL_SIZE 0
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#endif
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#ifndef CVMX_FPA_DFA_POOL
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#define CVMX_FPA_DFA_POOL -1
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#define CVMX_FPA_DFA_POOL_SIZE 0
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#endif
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return __cvmx_helper_initialize_fpa(
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CVMX_FPA_PACKET_POOL, CVMX_FPA_PACKET_POOL_SIZE, packet_buffers,
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CVMX_FPA_WQE_POOL, CVMX_FPA_WQE_POOL_SIZE, work_queue_entries,
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CVMX_FPA_OUTPUT_BUFFER_POOL, CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE, pko_buffers,
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CVMX_FPA_TIMER_POOL, CVMX_FPA_TIMER_POOL_SIZE, tim_buffers,
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CVMX_FPA_DFA_POOL, CVMX_FPA_DFA_POOL_SIZE, dfa_buffers);
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}
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