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69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
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/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright © 2022 Dmitry Salychev
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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
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* are met:
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _DPAA2_BP_H
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#define _DPAA2_BP_H
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#include <sys/bus.h>
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/* Maximum resources per DPBP: 1 DPMCP. */
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#define DPAA2_BP_MAX_RESOURCES 1
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/**
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* @brief Attributes of the DPBP object.
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*
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* id: DPBP object ID.
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* bpid: Hardware buffer pool ID; should be used as an argument in
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* acquire/release operations on buffers.
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*/
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struct dpaa2_bp_attr {
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uint32_t id;
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uint16_t bpid;
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};
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/**
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* @brief Configuration/state of the buffer pool.
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*/
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struct dpaa2_bp_conf {
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uint8_t bdi;
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uint8_t state; /* bitmask */
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uint32_t free_bufn;
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};
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/**
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* @brief Software context for the DPAA2 Buffer Pool driver.
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*/
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struct dpaa2_bp_softc {
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device_t dev;
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struct dpaa2_bp_attr attr;
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struct resource *res[DPAA2_BP_MAX_RESOURCES];
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};
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extern struct resource_spec dpaa2_bp_spec[];
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#endif /* _DPAA2_BP_H */
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