dpaa2_bp.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause
    3  *
    4  * Copyright © 2022 Dmitry Salychev
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  */
   27 
   28 #ifndef _DPAA2_BP_H
   29 #define _DPAA2_BP_H
   30 
   31 #include <sys/bus.h>
   32 
   33 /* Maximum resources per DPBP: 1 DPMCP. */
   34 #define DPAA2_BP_MAX_RESOURCES  1
   35 
   36 /**
   37  * @brief Attributes of the DPBP object.
   38  *
   39  * id:           DPBP object ID.
   40  * bpid:         Hardware buffer pool ID; should be used as an argument in
   41  *               acquire/release operations on buffers.
   42  */
   43 struct dpaa2_bp_attr {
   44         uint32_t                 id;
   45         uint16_t                 bpid;
   46 };
   47 
   48 /**
   49  * @brief Configuration/state of the buffer pool.
   50  */
   51 struct dpaa2_bp_conf {
   52         uint8_t                  bdi;
   53         uint8_t                  state; /* bitmask */
   54         uint32_t                 free_bufn;
   55 };
   56 
   57 /**
   58  * @brief Software context for the DPAA2 Buffer Pool driver.
   59  */
   60 struct dpaa2_bp_softc {
   61         device_t                 dev;
   62         struct dpaa2_bp_attr     attr;
   63 
   64         /* Help to send commands to MC. */
   65         struct dpaa2_cmd        *cmd;
   66         uint16_t                 rc_token;
   67         uint16_t                 bp_token;
   68 
   69         struct resource         *res[DPAA2_BP_MAX_RESOURCES];
   70 };
   71 
   72 extern struct resource_spec dpaa2_bp_spec[];
   73 
   74 #endif /* _DPAA2_BP_H */

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FreeBSD/Linux Kernel Cross Reference sys/dev/dpaa2/dpaa2_bp.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/dpaa2/dpaa2_bp.h