dpaa2_io.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause
    3  *
    4  * Copyright © 2021-2022 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_IO_H
   29 #define _DPAA2_IO_H
   30 
   31 #include <sys/rman.h>
   32 #include <sys/bus.h>
   33 #include <sys/queue.h>
   34 
   35 #include "dpaa2_types.h"
   36 #include "dpaa2_mcp.h"
   37 
   38 /* Maximum resources per DPIO: 3 SYS_MEM + 1 DPMCP. */
   39 #define DPAA2_IO_MAX_RESOURCES  4
   40 /* Maximum number of MSIs supported by the DPIO objects. */
   41 #define DPAA2_IO_MSI_COUNT      1
   42 
   43 enum dpaa2_io_chan_mode {
   44         DPAA2_IO_NO_CHANNEL,
   45         DPAA2_IO_LOCAL_CHANNEL
   46 };
   47 
   48 /**
   49  * @brief Attributes of the DPIO object.
   50  *
   51  * swp_ce_paddr: Physical address of the cache-enabled area.
   52  * swp_ci_paddr: Physical address of the cache-inhibited area.
   53  * swp_version:  Hardware IP version of the software portal.
   54  * swp_clk:      QBMAN clock frequency value in Hz.
   55  * id:           DPIO object ID.
   56  * swp_id:       Software portal ID.
   57  * priors_num:   Number of priorities for the notification channel (1-8);
   58  *               relevant only if channel mode is "local channel".
   59  * chan_mode:    Notification channel mode.
   60  */
   61 struct dpaa2_io_attr {
   62         uint64_t                 swp_ce_paddr;
   63         uint64_t                 swp_ci_paddr;
   64         uint32_t                 swp_version;
   65         uint32_t                 swp_clk;
   66         uint32_t                 id;
   67         uint16_t                 swp_id;
   68         uint8_t                  priors_num;
   69         enum dpaa2_io_chan_mode  chan_mode;
   70 };
   71 
   72 /**
   73  * @brief Context used by DPIO to configure data availability notifications
   74  * (CDAN) on a particular WQ channel.
   75  */
   76 struct dpaa2_io_notif_ctx {
   77         void (*poll)(void *);
   78 
   79         device_t                 io_dev;
   80         void                    *channel;
   81         uint64_t                 qman_ctx;
   82         uint16_t                 fq_chan_id;
   83         bool                     cdan_en;
   84 };
   85 
   86 /**
   87  * @brief Software context for the DPAA2 I/O driver.
   88  */
   89 struct dpaa2_io_softc {
   90         device_t                 dev;
   91         struct dpaa2_swp_desc    swp_desc;
   92         struct dpaa2_swp        *swp;
   93         struct dpaa2_io_attr     attr;
   94 
   95         /* Help to send commands to MC. */
   96         struct dpaa2_cmd        *cmd;
   97         uint16_t                 rc_token;
   98         uint16_t                 io_token;
   99 
  100         struct resource         *res[DPAA2_IO_MAX_RESOURCES];
  101         struct resource_map      map[DPAA2_IO_MAX_RESOURCES];
  102 
  103         int                      irq_rid[DPAA2_IO_MSI_COUNT];
  104         struct resource         *irq_resource;
  105         void                    *intr; /* interrupt handle */
  106 };
  107 
  108 extern struct resource_spec dpaa2_io_spec[];
  109 
  110 #endif /* _DPAA2_IO_H */

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FreeBSD/Linux Kernel Cross Reference sys/dev/dpaa2/dpaa2_io.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/dpaa2/dpaa2_io.h