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/* $OpenBSD: netdev.c,v 1.4 2012/11/25 14:10:47 miod Exp $ */
/*
* Copyright (c) 1993 Paul Kranenburg
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
#include <sys/param.h>
#include <machine/prom.h>
#include <string.h>
#include "stand.h"
#include "tftpfs.h"
#include "libsa.h"
struct bugdev_softc {
short clun;
short dlun;
} bugdev_softc[1];
int
devopen(f, fname, file)
struct open_file *f;
const char *fname;
char **file;
{
struct bugdev_softc *pp = &bugdev_softc[0];
pp->clun = (short)bugargs.ctrl_lun;
pp->dlun = (short)bugargs.dev_lun;
f->f_devdata = (void *)pp;
f->f_dev = &devsw[0];
*file = (char *)fname;
return (0);
}
#define NFR_TIMEOUT 5
int
net_strategy(devdata, func, nblk, size, buf, rsize)
void *devdata;
int func;
daddr32_t nblk;
size_t size;
void *buf;
size_t *rsize;
{
struct bugdev_softc *pp = (struct bugdev_softc *)devdata;
struct mvmeprom_netfread nfr;
int attempts;
for (attempts = 0; attempts < 10; attempts++) {
nfr.ctrl = pp->clun;
nfr.dev = pp->dlun;
nfr.status = 0;
nfr.addr = (u_long)buf;
nfr.bytes = 0;
nfr.blk = nblk;
nfr.timeout = NFR_TIMEOUT;
mvmeprom_netfread(&nfr);
if (rsize) {
*rsize = nfr.bytes;
}
if (nfr.status == 0)
return (0);
}
return (EIO);
}
int
net_open(struct open_file *f, ...)
{
va_list ap;
struct mvmeprom_netcfig ncfg;
struct mvmeprom_netfopen nfo;
struct mvmeprom_ncp ncp;
#if 0
struct mvmeprom_netctrl nctrl;
#endif
struct bugdev_softc *pp = (struct bugdev_softc *)f->f_devdata;
char *filename;
const char *failure = NULL;
va_start(ap, f);
filename = va_arg(ap, char *);
va_end(ap);
/*
* It seems that, after loading tftpboot from the network, the BUG
* will reset its current network settings before giving us control
* of the system. This causes any network parameter not stored in
* the NIOT area to be lost. However, unless we force the `always
* send a reverse arp request' setting is set, the BUG will `believe'
* it doesn't need to send any (because it had to in order to load
* this code), and will fail to connect to the tftp server.
*
* Unfortunately, updating the in-memory network configuration to
* force reverse arp requests to be sent always doesn't work, even
* after issueing a `reset device' command.
*
* The best we can do is recognize this situation, warn the user
* and return to the BUG.
*/
bzero(&ncp, sizeof ncp);
ncfg.ctrl = pp->clun;
ncfg.dev = pp->dlun;
ncfg.ncp_addr = (u_long)&ncp;
ncfg.flags = NETCFIG_READ;
if (mvmeprom_netcfig(&ncfg) == 0 && ncp.magic == NETCFIG_MAGIC) {
if (ncp.rarp_control != 'A' && ncp.client_ip == 0) {
#if 0
ncp.rarp_control = 'A';
ncp.update_control = 'Y';
bzero(&ncp, sizeof ncp);
ncfg.ctrl = pp->clun;
ncfg.dev = pp->dlun;
ncfg.ncp_addr = (u_long)&ncp;
ncfg.flags = NETCFIG_WRITE;
if (mvmeprom_netcfig(&ncfg) == 0) {
bzero(&nctrl, sizeof nctrl);
nctrl.ctrl = pp->clun;
nctrl.dev = pp->dlun;
nctrl.cmd = NETCTRLCMD_RESET;
if (mvmeprom_netctrl(&nctrl) != 0)
failure = "reset network interface";
} else
failure = "update NIOT configuration";
#else
printf("Invalid network configuration\n"
"Please update the NIOT parameters and set\n"
"``BOOTP/RARP Request Control: Always/When-Needed (A/W)'' to `A'\n");
_rtt();
#endif
}
} else
failure = "read NIOT configuration";
if (failure != NULL)
printf("failed to %s (0x%x), "
"hope RARP is set to `A'lways\n", failure, ncfg.status);
nfo.ctrl = pp->clun;
nfo.dev = pp->dlun;
nfo.status = 0;
strlcpy(nfo.filename, filename, sizeof nfo.filename);
mvmeprom_netfopen(&nfo);
#ifdef DEBUG
printf("tftp open(%s): 0x%x\n", filename, nfo.status);
#endif
return (nfo.status);
}
int
net_close(f)
struct open_file *f;
{
return (0);
}
int
net_ioctl(f, cmd, data)
struct open_file *f;
u_long cmd;
void *data;
{
return (EIO);
}
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