FreeBSD/Linux Kernel Cross Reference
sys/i386ipsc/dcm_output.c

     /* 
      * Mach Operating System
      * Copyright (c) 1991 Carnegie Mellon University
      * All Rights Reserved.
      * 
      * Permission to use, copy, modify and distribute this software and its
      * documentation is hereby granted, provided that both the copyright
      * notice and this permission notice appear in all copies of the
      * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     * 
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     * 
     * Carnegie Mellon requests users of this software to return to
     * 
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     * 
     * any improvements or extensions that they make and grant Carnegie Mellon
     * the rights to redistribute these changes.
     */
    /*
     * Copyright 1988, 1989, 1990, 1991 by Intel Corporation,
     * Santa Clara, California.
     * 
     *                          All Rights Reserved
     * 
     * Permission to use, copy, modify, and distribute this software and its
     * documentation for any purpose and without fee is hereby granted,
     * provided that the above copyright notice appears in all copies and that
     * both the copyright notice and this permission notice appear in
     * supporting documentation, and that the name of Intel not be used in
     * advertising or publicity pertaining to distribution of the software
     * without specific, written prior permission.
     * 
     * INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING
     * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT
     * SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL
     * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
     * PROFITS, WHETHER IN ACTION OF CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS
     * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
     * THIS SOFTWARE.
     */
    /*
     * HISTORY
     * $Log:        dcm_output.c,v $
     * Revision 2.6  91/08/28  11:12:00  jsb
     *      Moved shortword count support here from norma/ipc_net.c.
     *      [91/08/26  14:04:28  jsb]
     * 
     * Revision 2.5  91/08/03  18:18:01  jsb
     *      Added setting of size field in dcm_header for i860ipsc support.
     *      [91/07/27  19:04:34  jsb]
     * 
     *      Moved all device independent code to norma/ipc_net.c.
     *      [91/07/25  18:30:44  jsb]
     * 
     * Revision 2.4  91/06/18  20:50:16  jsb
     *      New copyright from Intel.
     *      [91/06/18  20:06:21  jsb]
     * 
     * Revision 2.3  91/06/17  15:44:09  jsb
     *      Changed include of renamed norma file.
     *      [91/06/17  10:07:18  jsb]
     * 
     * Revision 2.2  91/06/06  17:04:32  jsb
     *      First checkin.
     *      [91/05/14  13:27:30  jsb]
     * 
     */ 
    
    #include <norma/ipc_net.h>
    #include <ipsc/dcmcom.h>
    #include <i386ipsc/dcm.h>
    
    struct adma_chan        dcm_send_chan_1;
    struct adma_chan        dcm_send_chan_2;
    struct dcm_header       dcm_send_header;
    int                     ipsc_route;
    
    
    /*
     * Called when the dcm is initialized.
     */
    dcm_init_send()
    {
            bzero(&dcm_send_header, sizeof(dcm_send_header));
            dcm_send_header.type = DCM_HDR_TYPE_MACH;
    
            /*
             * Initialize dcm_send_chan_1
             */
            dcm_send_chan_1.src1 = kvtophys(&dcm_send_header) >> 1;
            dcm_send_chan_1.cnt1 = sizeof(dcm_send_header) >> 1;
            dcm_send_chan_1.cmd1 = SENDCMD;
           dcm_send_chan_1.cmd2 = SENDCMD;
           dcm_send_chan_1.cmd3 = SENDCMD;
           dcm_send_chan_1.cmd4 = STOPCMD | EOD;
   
           /*
            * Initialize dcm_send_chan_2
            */
           dcm_send_chan_2.src1 = kvtophys(&dcm_send_header) >> 1;
           dcm_send_chan_2.cnt1 = sizeof(dcm_send_header) >> 1;
           dcm_send_chan_2.cmd1 = SENDCMD;
           dcm_send_chan_2.cmd1 = SENDCMD;
           dcm_send_chan_2.cmd2 = SENDCMD;
           dcm_send_chan_2.cmd3 = SENDCMD;
           dcm_send_chan_2.cmd4 = SENDCMD;
           dcm_send_chan_2.cmd5 = STOPCMD | EOD;
   
           /*
            * Initialize routing info
            */
           ipsc_route = node_self() & 0x7f;
   }
   
   netipc_send(remote, vec, count)
           int remote;
           register struct netvec *vec;
           int count;
   {
           int s;
   
           dcm_send_header.route = remote ^ ipsc_route;
           if (count == 2) {
                   dcm_send_chan_1.src2 = vec[0].addr >> 1;
                   dcm_send_chan_1.cnt2 = vec[0].size >> 1;
                   dcm_send_chan_1.src3 = vec[1].addr >> 1;
                   dcm_send_chan_1.cnt3 = vec[1].size >> 1;
                   dcm_send_header.size = vec[0].size + vec[1].size;
                   s = sploff();
                   dcm_send_1();
                   splon(s);
           } else if (count == 3) {
                   dcm_send_chan_2.src2 = vec[0].addr >> 1;
                   dcm_send_chan_2.cnt2 = vec[0].size >> 1;
                   dcm_send_chan_2.src3 = vec[1].addr >> 1;
                   dcm_send_chan_2.cnt3 = vec[1].size >> 1;
                   dcm_send_chan_2.src4 = vec[2].addr >> 1;
                   dcm_send_chan_2.cnt4 = vec[2].size >> 1;
                   dcm_send_header.size = vec[0].size + vec[1].size + vec[2].size;
                   s = sploff();
                   dcm_send_2();
                   splon(s);
           } else {
                   panic("netipc_send: bad count=%d\n", count);
           }
   }
   
   dcm_send_intr()
   {
           netipc_send_intr();
   }
   
   netipc_network_init()
   {
   }

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