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Diffstat (limited to 'drivers/net/ark/ark_rqp.h')
| -rw-r--r-- | drivers/net/ark/ark_rqp.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/drivers/net/ark/ark_rqp.h b/drivers/net/ark/ark_rqp.h new file mode 100644 index 00000000..0c380071 --- /dev/null +++ b/drivers/net/ark/ark_rqp.h @@ -0,0 +1,86 @@ +/*- + * 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 |