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/*-
* BSD LICENSE
*
* Copyright (c) 2015-2017 Atomic Rules LLC
* 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 copyright holder 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 IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _ARK_RQP_H_
#define _ARK_RQP_H_
#include <stdint.h>
#include <rte_memory.h>
/* The RQP or ReQuest Pacer is an internal Arkville hardware module
* which limits the PCIE data flow to insure correct operation for the
* particular hardware PCIE endpoint.
* This module is *not* intended for end-user manipulation, hence
* there is minimal documentation.
*/
/*
* RQ Pacing core hardware structure
* This is an overlay structures to a memory mapped FPGA device. These
* structs will never be instantiated in ram memory
*/
struct ark_rqpace_t {
volatile uint32_t ctrl;
volatile uint32_t stats_clear;
volatile uint32_t cplh_max;
volatile uint32_t cpld_max;
volatile uint32_t err_cnt;
volatile uint32_t stall_ps;
volatile uint32_t stall_ps_min;
volatile uint32_t stall_ps_max;
volatile uint32_t req_ps;
volatile uint32_t req_ps_min;
volatile uint32_t req_ps_max;
volatile uint32_t req_dw_ps;
volatile uint32_t req_dw_ps_min;
volatile uint32_t req_dw_ps_max;
volatile uint32_t cpl_ps;
volatile uint32_t cpl_ps_min;
volatile uint32_t cpl_ps_max;
volatile uint32_t cpl_dw_ps;
volatile uint32_t cpl_dw_ps_min;
volatile uint32_t cpl_dw_ps_max;
volatile uint32_t cplh_pending;
volatile uint32_t cpld_pending;
volatile uint32_t cplh_pending_max;
volatile uint32_t cpld_pending_max;
volatile uint32_t err_count_other;
char eval[4];
volatile int lasped;
};
void ark_rqp_dump(struct ark_rqpace_t *rqp);
void ark_rqp_stats_reset(struct ark_rqpace_t *rqp);
int ark_rqp_lasped(struct ark_rqpace_t *rqp);
#endif
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