FreeBSD/Linux Kernel Cross Reference
sys/dev/iavf/iavf_adminq.h

     /* SPDX-License-Identifier: BSD-3-Clause */
     /*  Copyright (c) 2021, Intel Corporation
      *  All rights reserved.
      *
      *  Redistribution and use in source and binary forms, with or without
      *  modification, are permitted provided that the following conditions are met:
      *
      *   1. Redistributions of source code must retain the above copyright notice,
      *      this list of conditions and the following disclaimer.
     *
     *   2. 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.
     *
     *   3. Neither the name of the Intel Corporation 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.
     */
    /*$FreeBSD$*/
    
    #ifndef _IAVF_ADMINQ_H_
    #define _IAVF_ADMINQ_H_
    
    #include "iavf_osdep.h"
    #include "iavf_status.h"
    #include "iavf_adminq_cmd.h"
    
    #define IAVF_ADMINQ_DESC(R, i)   \
            (&(((struct iavf_aq_desc *)((R).desc_buf.va))[i]))
    
    #define IAVF_ADMINQ_DESC_ALIGNMENT 4096
    
    struct iavf_adminq_ring {
            struct iavf_virt_mem dma_head;  /* space for dma structures */
            struct iavf_dma_mem desc_buf;   /* descriptor ring memory */
            struct iavf_virt_mem cmd_buf;   /* command buffer memory */
    
            union {
                    struct iavf_dma_mem *asq_bi;
                    struct iavf_dma_mem *arq_bi;
            } r;
    
            u16 count;              /* Number of descriptors */
            u16 rx_buf_len;         /* Admin Receive Queue buffer length */
    
            /* used for interrupt processing */
            u16 next_to_use;
            u16 next_to_clean;
    
            /* used for queue tracking */
            u32 head;
            u32 tail;
            u32 len;
            u32 bah;
            u32 bal;
    };
    
    /* ASQ transaction details */
    struct iavf_asq_cmd_details {
            void *callback; /* cast from type IAVF_ADMINQ_CALLBACK */
            u64 cookie;
            u16 flags_ena;
            u16 flags_dis;
            bool async;
            bool postpone;
            struct iavf_aq_desc *wb_desc;
    };
    
    #define IAVF_ADMINQ_DETAILS(R, i)   \
            (&(((struct iavf_asq_cmd_details *)((R).cmd_buf.va))[i]))
    
    /* ARQ event information */
    struct iavf_arq_event_info {
            struct iavf_aq_desc desc;
            u16 msg_len;
            u16 buf_len;
            u8 *msg_buf;
    };
    
    /* Admin Queue information */
    struct iavf_adminq_info {
            struct iavf_adminq_ring arq;    /* receive queue */
            struct iavf_adminq_ring asq;    /* send queue */
            u32 asq_cmd_timeout;            /* send queue cmd write back timeout*/
            u16 num_arq_entries;            /* receive queue depth */
            u16 num_asq_entries;            /* send queue depth */
            u16 arq_buf_size;               /* receive queue buffer size */
           u16 asq_buf_size;               /* send queue buffer size */
           u16 fw_maj_ver;                 /* firmware major version */
           u16 fw_min_ver;                 /* firmware minor version */
           u32 fw_build;                   /* firmware build number */
           u16 api_maj_ver;                /* api major version */
           u16 api_min_ver;                /* api minor version */
   
           struct iavf_spinlock asq_spinlock; /* Send queue spinlock */
           struct iavf_spinlock arq_spinlock; /* Receive queue spinlock */
   
           /* last status values on send and receive queues */
           enum iavf_admin_queue_err asq_last_status;
           enum iavf_admin_queue_err arq_last_status;
   };
   
   /* general information */
   #define IAVF_AQ_LARGE_BUF       512
   #define IAVF_ASQ_CMD_TIMEOUT    250000  /* usecs */
   
   void iavf_fill_default_direct_cmd_desc(struct iavf_aq_desc *desc,
                                          u16 opcode);
   
   #endif /* _IAVF_ADMINQ_H_ */

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