FreeBSD/Linux Kernel Cross Reference
sys/dev/ntb/ntb_if.m

     #-
     # Copyright (c) 2016 Alexander Motin <mav@FreeBSD.org>
     # 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.
    #
    # THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
    #
    # $FreeBSD$
    #
    
    #include <sys/bus.h>
    #include <machine/bus.h>
    
    INTERFACE ntb;
    
    HEADER {
            enum ntb_speed {
                    NTB_SPEED_AUTO = -1,
                    NTB_SPEED_NONE = 0,
                    NTB_SPEED_GEN1 = 1,
                    NTB_SPEED_GEN2 = 2,
                    NTB_SPEED_GEN3 = 3,
                    NTB_SPEED_GEN4 = 4,
            };
    
            enum ntb_width {
                    NTB_WIDTH_AUTO = -1,
                    NTB_WIDTH_NONE = 0,
                    NTB_WIDTH_1 = 1,
                    NTB_WIDTH_2 = 2,
                    NTB_WIDTH_4 = 4,
                    NTB_WIDTH_8 = 8,
                    NTB_WIDTH_12 = 12,
                    NTB_WIDTH_16 = 16,
                    NTB_WIDTH_32 = 32,
            };
    
            typedef void (*ntb_db_callback)(void *data, uint32_t vector);
            typedef void (*ntb_event_callback)(void *data);
            struct ntb_ctx_ops {
                    ntb_event_callback      link_event;
                    ntb_db_callback         db_event;
            };
    };
    
    METHOD int port_number {
            device_t        ntb;
    };
    
    METHOD int peer_port_count {
            device_t        ntb;
    };
    
    METHOD int peer_port_number {
            device_t        ntb;
            int             pidx;
    };
    
    METHOD int peer_port_idx {
            device_t        ntb;
            int             port;
    };
    
    METHOD bool link_is_up {
            device_t         ntb;
            enum ntb_speed  *speed;
            enum ntb_width  *width;
    };
    
    METHOD int link_enable {
            device_t         ntb;
            enum ntb_speed   speed;
            enum ntb_width   width;
    };
    
    METHOD int link_disable {
            device_t         ntb;
    };
    
    METHOD bool link_enabled {
            device_t         ntb;
   };
   
   METHOD int set_ctx {
           device_t         ntb;
           void            *ctx;
           const struct ntb_ctx_ops *ctx_ops;
   };
   
   METHOD void * get_ctx {
           device_t         ntb;
           const struct ntb_ctx_ops **ctx_ops;
   };
   
   METHOD void clear_ctx {
           device_t         ntb;
   };
   
   METHOD uint8_t mw_count {
           device_t         ntb;
   };
   
   METHOD int mw_get_range {
           device_t         ntb;
           unsigned         mw_idx;
           vm_paddr_t      *base;
           caddr_t         *vbase;
           size_t          *size;
           size_t          *align;
           size_t          *align_size;
           bus_addr_t      *plimit;
   };
   
   METHOD int mw_set_trans {
           device_t         ntb;
           unsigned         mw_idx;
           bus_addr_t       addr;
           size_t           size;
   };
   
   METHOD int mw_clear_trans {
           device_t         ntb;
           unsigned         mw_idx;
   };
   
   METHOD int mw_get_wc {
           device_t         ntb;
           unsigned         mw_idx;
           vm_memattr_t    *mode;
   };
   
   METHOD int mw_set_wc {
           device_t         ntb;
           unsigned         mw_idx;
           vm_memattr_t     mode;
   };
   
   METHOD uint8_t spad_count {
           device_t         ntb;
   };
   
   METHOD void spad_clear {
           device_t         ntb;
   };
   
   METHOD int spad_write {
           device_t         ntb;
           unsigned int     idx;
           uint32_t         val;
   };
   
   METHOD int spad_read {
           device_t         ntb;
           unsigned int     idx;
           uint32_t         *val;
   };
   
   METHOD int peer_spad_write {
           device_t         ntb;
           unsigned int     idx;
           uint32_t         val;
   };
   
   METHOD int peer_spad_read {
           device_t         ntb;
           unsigned int     idx;
           uint32_t        *val;
   };
   
   METHOD uint64_t db_valid_mask {
           device_t         ntb;
   };
   
   METHOD int db_vector_count {
           device_t         ntb;
   };
   
   METHOD uint64_t db_vector_mask {
           device_t         ntb;
           uint32_t         vector;
   };
   
   METHOD int peer_db_addr {
           device_t         ntb;
           bus_addr_t      *db_addr;
           vm_size_t       *db_size;
   };
   
   METHOD void db_clear {
           device_t         ntb;
           uint64_t         bits;
   };
   
   METHOD void db_clear_mask {
           device_t         ntb;
           uint64_t         bits;
   };
   
   METHOD uint64_t db_read {
           device_t         ntb;
   };
   
   METHOD void db_set_mask {
           device_t         ntb;
           uint64_t         bits;
   };
   
   METHOD void peer_db_set {
           device_t         ntb;
           uint64_t         bits;
   };

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