de87fe677d
When a link-layer address changes (e.g., ifconfig ex0 link
02🇩🇪ad:be:ef:02 active), send a gratuitous ARP and/or a Neighbor
Advertisement to update the network-/link-layer address bindings
on our LAN peers.
Refuse a change of ethernet address to the address 00:00:00:00:00:00
or to any multicast/broadcast address. (Thanks matt@.)
Reorder ifnet ioctl operations so that driver ioctls may inherit
the functions of their "class"---ether_ioctl(), fddi_ioctl(), et
cetera---and the class ioctls may inherit from the generic ioctl,
ifioctl_common(), but both driver- and class-ioctls may override
the generic behavior. Make network drivers share more code.
Distinguish a "factory" link-layer address from others for the
purposes of both protecting that address from deletion and computing
EUI64.
Return consistent, appropriate error codes from network drivers.
Improve readability. KNF.
*** Details ***
In if_attach(), always initialize the interface ioctl routine,
ifnet->if_ioctl, if the driver has not already initialized it.
Delete if_ioctl == NULL tests everywhere else, because it cannot
happen.
In the ioctl routines of network interfaces, inherit common ioctl
behaviors by calling either ifioctl_common() or whichever ioctl
routine is appropriate for the class of interface---e.g., ether_ioctl()
for ethernets.
Stop (ab)using SIOCSIFADDR and start to use SIOCINITIFADDR. In
the user->kernel interface, SIOCSIFADDR's argument was an ifreq,
but on the protocol->ifnet interface, SIOCSIFADDR's argument was
an ifaddr. That was confusing, and it would work against me as I
make it possible for a network interface to overload most ioctls.
On the protocol->ifnet interface, replace SIOCSIFADDR with
SIOCINITIFADDR. In ifioctl(), return EPERM if userland tries to
invoke SIOCINITIFADDR.
In ifioctl(), give the interface the first shot at handling most
interface ioctls, and give the protocol the second shot, instead
of the other way around. Finally, let compatibility code (COMPAT_OSOCK)
take a shot.
Pull device initialization out of switch statements under
SIOCINITIFADDR. For example, pull ..._init() out of any switch
statement that looks like this:
switch (...->sa_family) {
case ...:
..._init();
...
break;
...
default:
..._init();
...
break;
}
Rewrite many if-else clauses that handle all permutations of IFF_UP
and IFF_RUNNING to use a switch statement,
switch (x & (IFF_UP|IFF_RUNNING)) {
case 0:
...
break;
case IFF_RUNNING:
...
break;
case IFF_UP:
...
break;
case IFF_UP|IFF_RUNNING:
...
break;
}
unifdef lots of code containing #ifdef FreeBSD, #ifdef NetBSD, and
#ifdef SIOCSIFMTU, especially in fwip(4) and in ndis(4).
In ipw(4), remove an if_set_sadl() call that is out of place.
In nfe(4), reuse the jumbo MTU logic in ether_ioctl().
Let ethernets register a callback for setting h/w state such as
promiscuous mode and the multicast filter in accord with a change
in the if_flags: ether_set_ifflags_cb() registers a callback that
returns ENETRESET if the caller should reset the ethernet by calling
if_init(), 0 on success, != 0 on failure. Pull common code from
ex(4), gem(4), nfe(4), sip(4), tlp(4), vge(4) into ether_ioctl(),
and register if_flags callbacks for those drivers.
Return ENOTTY instead of EINVAL for inappropriate ioctls. In
zyd(4), use ENXIO instead of ENOTTY to indicate that the device is
not any longer attached.
Add to if_set_sadl() a boolean 'factory' argument that indicates
whether a link-layer address was assigned by the factory or some
other source. In a comment, recommend using the factory address
for generating an EUI64, and update in6_get_hw_ifid() to prefer a
factory address to any other link-layer address.
Add a routing message, RTM_LLINFO_UPD, that tells protocols to
update the binding of network-layer addresses to link-layer addresses.
Implement this message in IPv4 and IPv6 by sending a gratuitous
ARP or a neighbor advertisement, respectively. Generate RTM_LLINFO_UPD
messages on a change of an interface's link-layer address.
In ether_ioctl(), do not let SIOCALIFADDR set a link-layer address
that is broadcast/multicast or equal to 00:00:00:00:00:00.
Make ether_ioctl() call ifioctl_common() to handle ioctls that it
does not understand.
In gif(4), initialize if_softc and use it, instead of assuming that
the gif_softc and ifp overlap.
Let ifioctl_common() handle SIOCGIFADDR.
Sprinkle rtcache_invariants(), which checks on DIAGNOSTIC kernels
that certain invariants on a struct route are satisfied.
In agr(4), rewrite agr_ioctl_filter() to be a bit more explicit
about the ioctls that we do not allow on an agr(4) member interface.
bzero -> memset. Delete unnecessary casts to void *. Use
sockaddr_in_init() and sockaddr_in6_init(). Compare pointers with
NULL instead of "testing truth". Replace some instances of (type
*)0 with NULL. Change some K&R prototypes to ANSI C, and join
lines.
1029 lines
26 KiB
C
1029 lines
26 KiB
C
/* $NetBSD: if_hp.c,v 1.45 2008/11/07 00:20:07 dyoung Exp $ */
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/* XXX THIS DRIVER IS BROKEN. IT WILL NOT EVEN COMPILE. */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1990, 1991 William F. Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* HP LAN Ethernet driver
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*
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* Parts inspired from Tim Tucker's if_wd driver for the wd8003,
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* insight on the ne2000 gained from Robert Clements PC/FTP driver.
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*
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* receive bottom end totally rewritten by Curt Mayer, Dec 1992.
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* no longer loses back to back packets.
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* note to driver writers: RTFM!
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*
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* hooks for packet filter added by Charles Hannum, 29DEC1992.
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*
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* Mostly rewritten for HP-labelled EISA controllers by Charles Hannum,
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* 18JAN1993.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_hp.c,v 1.45 2008/11/07 00:20:07 dyoung Exp $");
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#include "hp.h"
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#if NHP > 0
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#include "opt_inet.h"
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#include "rnd.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/buf.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/syslog.h>
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#if NRND > 0
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#include <sys/rnd.h>
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#endif
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#include <net/if.h>
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#include <net/if_ether.h>
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/in_var.h>
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#include <netinet/ip.h>
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#include <netinet/if_inarp.h>
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#endif
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#include "bpfilter.h"
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#if NBPFILTER > 0
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#include <sys/select.h>
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#include <net/bpf.h>
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#include <net/bpfdesc.h>
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#endif
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#include <sys/cpu.h>
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#include <machine/pio.h>
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#include <i386/isa/isa_device.h> /* XXX BROKEN */
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#include <dev/isa/if_nereg.h>
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#include <i386/isa/icu.h> /* XXX BROKEN */
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int hpprobe(), hpattach(), hpintr();
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int hpstart(), hpinit(), ether_output(), hpioctl();
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struct isa_driver hpdriver =
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{
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hpprobe, hpattach, "hp",
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};
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struct mbuf *hpget();
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/*
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* Ethernet software status per interface.
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*
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* Each interface is referenced by a network interface structure,
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* ns_if, which the routing code uses to locate the interface.
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* This structure contains the output queue for the interface, its address, ...
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*/
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struct hp_softc {
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struct ethercom ns_ec; /* Ethernet common part */
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#define ns_if ns_ac.ac_if /* network-visible interface */
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int ns_flags;
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#define DSF_LOCK 1 /* block re-entering enstart */
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int ns_oactive;
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int ns_mask;
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struct prhdr ns_ph; /* hardware header of incoming packet */
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u_char ns_pb[2048];
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u_char ns_txstart; /* transmitter buffer start */
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u_char ns_rxstart; /* receiver buffer start */
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u_char ns_rxend; /* receiver buffer end */
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u_char hp_type; /* HP board type */
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u_char hp_irq; /* interrupt vector */
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short ns_port; /* i/o port base */
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short ns_mode; /* word/byte mode */
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short ns_rcr;
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#if NBPFILTER > 0
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void *ns_bpf;
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#endif
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u_int8_t ns_addrp[ETHER_ADDR_LEN]; /* hardware Ethernet address */
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#if NRND > 0
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rndsource_element_t rnd_source;
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#endif
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}
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hp_softc[NHP];
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#define ENBUFSIZE (sizeof(struct ether_header) + ETHERMTU + 2 + ETHER_MIN_LEN)
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#define PAT(n) (0xa55a + 37*(n))
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u_short boarddata[16];
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#define hp_option (-8)
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#define hp_data (-4)
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#define HP_RUN (0x01)
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#define HP_DATA (0x10)
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hpprobe(dvp)
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struct isa_device *dvp;
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{
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int val, i, s, sum, pat;
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struct hp_softc *ns = &hp_softc[0];
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int hpc;
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#ifdef lint
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hpintr(0);
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#endif
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hpc = (ns->ns_port = dvp->id_iobase + 0x10);
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s = splnet();
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ns->hp_irq = ffs(dvp->id_irq) - 1;
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/* Extract board address */
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for (i = 0; i < 6; i++)
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ns->ns_addrp[i] = inb(hpc - 0x10 + i);
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ns->hp_type = inb(hpc - 0x10 + 7);
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if (ns->ns_addrp[0] != 0x08 ||
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ns->ns_addrp[1] != 0x00 ||
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ns->ns_addrp[2] != 0x09) {
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splx(s);
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return 0;
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}
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/* Word Transfers, Burst Mode Select, Fifo at 8 bytes */
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/* On this board, WTS means 32-bit transfers, which is still
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* experimental. - mycroft, 18JAN93 */
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#ifdef HP_32BIT
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ns->ns_mode = DSDC_WTS | DSDC_BMS | DSDC_FT1;
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#else
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ns->ns_mode = DSDC_BMS | DSDC_FT1;
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#endif
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ns->ns_txstart = 0 * 1024 / DS_PGSIZE;
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ns->ns_rxend = 32 * 1024 / DS_PGSIZE;
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ns->ns_rxstart = ns->ns_txstart + (PKTSZ / DS_PGSIZE);
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outb(hpc + hp_option, HP_RUN);
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#if 0
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outb(hpc + ds0_isr, 0xff);
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outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG0 | DSCM_STOP);
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delay(1000);
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/* Check cmd reg and fail if not right */
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if ((i = inb(hpc + ds_cmd)) != (DSCM_NODMA | DSCM_PG0 | DSCM_STOP)) {
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splx(s);
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return (0);
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}
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#endif
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outb(hpc + hp_option, 0);
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splx(s);
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return (32);
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}
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/*
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* Fetch from onboard ROM/RAM
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*/
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hpfetch(ns, up, ad, len)
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struct hp_softc *ns;
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void *up;
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{
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u_char cmd;
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int hpc = ns->ns_port;
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int counter = 100000;
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outb(hpc + hp_option, inb(hpc + hp_option) | HP_DATA);
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cmd = inb(hpc + ds_cmd);
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outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG0 | DSCM_START);
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/* Setup remote DMA */
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outb(hpc + ds0_isr, DSIS_RDC);
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if (ns->ns_mode & DSDC_WTS)
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len = (len + 3) & ~3;
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else
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len = (len + 1) & ~1;
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outb(hpc + ds0_rbcr0, len);
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outb(hpc + ds0_rbcr1, len >> 8);
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outb(hpc + ds0_rsar0, ad);
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outb(hpc + ds0_rsar1, ad >> 8);
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#ifdef HP_DEBUG
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printf("hpfetch: len=%d ioaddr=0x%03x addr=0x%04x option=0x%02x %d-bit\n",
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len, hpc + hp_data, ad, inb(hpc + hp_option),
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ns->ns_mode & DSDC_WTS ? 32 : 16);
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printf("hpfetch: cmd=0x%02x isr=0x%02x ",
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inb(hpc + ds_cmd), inb(hpc + ds0_isr));
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outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG2 | DSCM_START);
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printf("imr=0x%02x rcr=0x%02x tcr=0x%02x dcr=0x%02x\n",
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inb(hpc + ds0_imr), inb(hpc + ds0_rcr), inb(hpc + ds0_tcr),
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inb(hpc + ds0_dcr));
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#endif
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/* Execute & extract from card */
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outb(hpc + ds_cmd, DSCM_RREAD | DSCM_PG0 | DSCM_START);
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#ifdef HP_32BIT
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if (ns->ns_mode & DSDC_WTS)
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len = (void *) insd(hpc + hp_data, up, len >> 2) - up;
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else
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#endif
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len = (void *) insw(hpc + hp_data, up, len >> 1) - up;
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#ifdef HP_DEBUG
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printf("hpfetch: done len=%d\n", len);
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#endif
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/* Wait till done, then shutdown feature */
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while ((inb(hpc + ds0_isr) & DSIS_RDC) == 0 && counter-- > 0);
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outb(hpc + ds0_isr, DSIS_RDC);
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outb(hpc + ds_cmd, cmd);
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outb(hpc + hp_option, inb(hpc + hp_option) & ~HP_DATA);
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}
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/*
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* Put to onboard RAM
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*/
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hpput(ns, up, ad, len)
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struct hp_softc *ns;
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void *up;
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{
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u_char cmd;
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int hpc = ns->ns_port;
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int counter = 100000;
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outb(hpc + hp_option, inb(hpc + hp_option) | HP_DATA);
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cmd = inb(hpc + ds_cmd);
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outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG0 | DSCM_START);
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/* Setup for remote DMA */
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outb(hpc + ds0_isr, DSIS_RDC);
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if (ns->ns_mode & DSDC_WTS)
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len = (len + 3) & ~3;
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else
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len = (len + 1) & ~1;
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#ifdef HP_DEBUG
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printf("hpput: len=%d ioaddr=0x%03x addr=0x%04x option=0x%02x %d-bit\n",
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len, hpc + hp_data, ad, inb(hpc + hp_option),
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ns->ns_mode & DSDC_WTS ? 32 : 16);
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printf("hpput: cmd=0x%02x isr=0x%02x ",
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inb(hpc + ds_cmd), inb(hpc + ds0_isr));
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outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG2 | DSCM_START);
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printf("imr=0x%02x rcr=0x%02x tcr=0x%02x dcr=0x%02x\n",
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inb(hpc + ds0_imr), inb(hpc + ds0_rcr), inb(hpc + ds0_tcr),
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inb(hpc + ds0_dcr));
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{
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unsigned char *p = (unsigned char *) up;
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int n = len;
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printf("hpput:");
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while (n--)
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printf(" %02x", *(p++));
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printf("\n");
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}
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#endif
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outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG0 | DSCM_START);
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outb(hpc + ds0_rbcr0, 0xff);
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outb(hpc + ds_cmd, DSCM_RREAD | DSCM_PG0 | DSCM_START);
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outb(hpc + ds0_rbcr0, len);
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outb(hpc + ds0_rbcr1, len >> 8);
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outb(hpc + ds0_rsar0, ad);
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outb(hpc + ds0_rsar1, ad >> 8);
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/* Execute & stuff to card */
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outb(hpc + ds_cmd, DSCM_RWRITE | DSCM_PG0 | DSCM_START);
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#ifdef HP_32BIT
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if (ns->ns_mode & DSDC_WTS)
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len = (void *) outsd(hpc + hp_data, up, len >> 2) - up;
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else
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#endif
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len = (void *) outsw(hpc + hp_data, up, len >> 1) - up;
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#ifdef HP_DEBUG
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printf("hpput: done len=%d\n", len);
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#endif
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/* Wait till done, then shutdown feature */
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while ((inb(hpc + ds0_isr) & DSIS_RDC) == 0 && counter-- > 0);
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outb(hpc + ds0_isr, DSIS_RDC);
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outb(hpc + ds_cmd, cmd);
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|
|
outb(hpc + hp_option, inb(hpc + hp_option) & ~HP_DATA);
|
|
}
|
|
/*
|
|
* Reset of interface.
|
|
*/
|
|
hpreset(unit, uban)
|
|
int unit, uban;
|
|
{
|
|
struct hp_softc *ns = &hp_softc[unit];
|
|
int hpc = ns->ns_port;
|
|
if (unit >= NHP)
|
|
return;
|
|
printf("hp%d: reset\n", unit);
|
|
outb(hpc + hp_option, 0);
|
|
ns->ns_flags &= ~DSF_LOCK;
|
|
hpinit(unit);
|
|
}
|
|
|
|
static char *
|
|
hp_id(type)
|
|
u_char type;
|
|
{
|
|
static struct {
|
|
u_char type;
|
|
char *name;
|
|
} boards[] = {
|
|
{
|
|
0x00, "hp27240"
|
|
}, {
|
|
0x10, "hp24240"
|
|
}, {
|
|
0x01, "hp27245"
|
|
}, {
|
|
0x02, "hp27250"
|
|
}, {
|
|
0x81, "hp27247"
|
|
}, {
|
|
0x91, "hp27247r1"
|
|
}
|
|
};
|
|
int n = sizeof(boards) / sizeof(boards[0]);
|
|
|
|
while (n)
|
|
if (boards[--n].type == type)
|
|
return boards[n].name;
|
|
|
|
return "UNKNOWN";
|
|
}
|
|
/*
|
|
* Interface exists: make available by filling in network interface
|
|
* record. System will initialize the interface when it is ready
|
|
* to accept packets. We get the ethernet address here.
|
|
*/
|
|
hpattach(dvp)
|
|
struct isa_device *dvp;
|
|
{
|
|
int unit = dvp->id_unit;
|
|
struct hp_softc *ns = &hp_softc[unit];
|
|
struct ifnet *ifp = &ns->ns_if;
|
|
|
|
ifp->if_unit = unit;
|
|
ifp->if_name = hpdriver.name;
|
|
ifp->if_mtu = ETHERMTU;
|
|
printf("hp%d: %s %d-bit ethernet address %s\n", unit,
|
|
hp_id(ns->hp_type), ns->ns_mode & DSDC_WTS ? 32 : 16,
|
|
ether_sprintf(ns->ns_addrp));
|
|
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS;
|
|
ifp->if_output = ether_output;
|
|
ifp->if_start = hpstart;
|
|
ifp->if_ioctl = hpioctl;
|
|
ifp->if_reset = hpreset;
|
|
ifp->if_watchdog = 0;
|
|
IFQ_SET_READY(&ifp->if_snd);
|
|
if_attach(ifp);
|
|
|
|
#if NBPFILTER > 0
|
|
bpfattach(&ns->ns_bpf, ifp, DLT_EN10MB,
|
|
sizeof(struct ether_header));
|
|
#endif
|
|
|
|
#if NRND > 0
|
|
rnd_attach_source(&ns->rnd_source, device_xname(&ns->sc_dev),
|
|
RND_TYPE_NET, 0);
|
|
#endif
|
|
|
|
}
|
|
/*
|
|
* Initialization of interface; set up initialization block
|
|
* and transmit/receive descriptor rings.
|
|
*/
|
|
hpinit(unit)
|
|
int unit;
|
|
{
|
|
struct hp_softc *ns = &hp_softc[unit];
|
|
struct ifnet *ifp = &ns->ns_if;
|
|
int s;
|
|
int i;
|
|
char *cp;
|
|
int hpc = ns->ns_port;
|
|
|
|
if (IFADDR_EMPTY(ifp))
|
|
return;
|
|
if (ifp->if_flags & IFF_RUNNING)
|
|
return;
|
|
|
|
s = splnet();
|
|
|
|
#ifdef HP_DEBUG
|
|
printf("hpinit: hp%d at 0x%x irq %d\n", unit, hpc, (int) ns->hp_irq);
|
|
printf("hpinit: promiscuous mode %s\n",
|
|
ns->ns_if.if_flags & IFF_PROMISC ? "on" : "off");
|
|
#endif
|
|
|
|
ns->ns_rcr = (ns->ns_if.if_flags & IFF_BROADCAST ? DSRC_AB : 0) |
|
|
(ns->ns_if.if_flags & IFF_PROMISC ? DSRC_PRO : 0);
|
|
#ifdef HP_LOG_ERRORS
|
|
ns->ns_rcr |= DSRC_SEP;
|
|
#endif
|
|
|
|
/* set irq and turn on board */
|
|
outb(hpc + hp_option, HP_RUN | (ns->hp_irq << 1));
|
|
|
|
/* init regs */
|
|
outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG0 | DSCM_STOP);
|
|
outb(hpc + ds0_dcr, 0);
|
|
outb(hpc + ds0_rbcr0, 0);
|
|
outb(hpc + ds0_rbcr1, 0);
|
|
outb(hpc + ds0_rcr, DSRC_MON);
|
|
outb(hpc + ds0_tpsr, ns->ns_txstart);
|
|
outb(hpc + ds0_imr, 0);
|
|
outb(hpc + ds0_tcr, DSTC_LB0);
|
|
outb(hpc + ds0_pstart, ns->ns_rxstart);
|
|
outb(hpc + ds0_bnry, ns->ns_rxend - 1);
|
|
outb(hpc + ds0_pstop, ns->ns_rxend);
|
|
outb(hpc + ds0_isr, 0xff);
|
|
outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG1 | DSCM_STOP);
|
|
outb(hpc + ds1_curr, ns->ns_rxstart);
|
|
|
|
/* set physical address on ethernet */
|
|
for (i = 0; i < 6; i++)
|
|
outb(hpc + ds1_par0 + i, ns->ns_addrp[i]);
|
|
|
|
/* clr logical address hash filter for now */
|
|
for (i = 0; i < 8; i++)
|
|
outb(hpc + ds1_mar0 + i, 0xff);
|
|
|
|
/* fire it up */
|
|
outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG0 | DSCM_START);
|
|
outb(hpc + ds0_dcr, ns->ns_mode);
|
|
outb(hpc + ds0_rcr, ns->ns_rcr);
|
|
outb(hpc + ds0_tcr, 0);
|
|
outb(hpc + ds0_imr, 0xff);
|
|
|
|
ns->ns_if.if_flags |= IFF_RUNNING;
|
|
ns->ns_flags &= ~DSF_LOCK;
|
|
ns->ns_oactive = 0;
|
|
ns->ns_mask = ~0;
|
|
hpstart(ifp);
|
|
|
|
#ifdef HP_DEBUG
|
|
printf("hpinit: done\n", unit, hpc);
|
|
#endif
|
|
|
|
splx(s);
|
|
}
|
|
/*
|
|
* Setup output on interface.
|
|
* Get another datagram to send off of the interface queue,
|
|
* and map it to the interface before starting the output.
|
|
* called only at splnet or interrupt level.
|
|
*/
|
|
hpstart(ifp)
|
|
struct ifnet *ifp;
|
|
{
|
|
struct hp_softc *ns = &hp_softc[ifp->if_unit];
|
|
struct mbuf *m0, *m;
|
|
int buffer;
|
|
int len, i, total;
|
|
int hpc = ns->ns_port;
|
|
|
|
/*
|
|
* The DS8390 has only one transmit buffer, if it is busy we
|
|
* must wait until the transmit interrupt completes.
|
|
*/
|
|
if (ns->ns_flags & DSF_LOCK)
|
|
return;
|
|
|
|
if (inb(hpc + ds_cmd) & DSCM_TRANS)
|
|
return;
|
|
|
|
if ((ns->ns_if.if_flags & IFF_RUNNING) == 0)
|
|
return;
|
|
|
|
IFQ_DEQUEUE(&ns->ns_if.if_snd, m);
|
|
|
|
if (m == 0)
|
|
return;
|
|
|
|
/*
|
|
* Copy the mbuf chain into the transmit buffer
|
|
*/
|
|
|
|
ns->ns_flags |= DSF_LOCK; /* prevent entering hpstart */
|
|
buffer = ns->ns_txstart * DS_PGSIZE;
|
|
i = 0;
|
|
total = len = m->m_pkthdr.len;
|
|
|
|
#ifdef HP_DEBUG
|
|
printf("hpstart: len=%d\n", len);
|
|
#endif
|
|
|
|
#if NBPFILTER > 0
|
|
if (ns->ns_bpf)
|
|
bpf_mtap(ns->ns_bpf, m);
|
|
#endif
|
|
|
|
for (m0 = m; m != 0;) {
|
|
if (m->m_len & 1 && t > m->m_len) {
|
|
m->m_len -= 1;
|
|
hpput(ns, mtod(m, void *), buffer, m->m_len);
|
|
t -= m->m_len;
|
|
buffer += m->m_len;
|
|
m->m_data += m->m_len;
|
|
m->m_len = 1;
|
|
m = m_pullup(m, 2);
|
|
} else {
|
|
hpput(ns, mtod(m, void *), buffer, m->m_len);
|
|
t -= m->m_len;
|
|
buffer += m->m_len;
|
|
MFREE(m, m0);
|
|
m = m0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Init transmit length registers, and set transmit start flag.
|
|
*/
|
|
len = total;
|
|
if (len < ETHER_MIN_LEN)
|
|
len = ETHER_MIN_LEN;
|
|
#error broken here ! need to set to 0 the pad space in buffer !
|
|
outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG0 | DSCM_START);
|
|
outb(hpc + ds0_tbcr0, len & 0xff);
|
|
outb(hpc + ds0_tbcr1, (len >> 8) & 0xff);
|
|
outb(hpc + ds0_tpsr, ns->ns_txstart);
|
|
outb(hpc + ds_cmd, DSCM_TRANS | DSCM_NODMA | DSCM_PG0 | DSCM_START);
|
|
|
|
#ifdef HP_DEBUG
|
|
printf("hpstart: done\n", hpc);
|
|
#endif
|
|
}
|
|
/*
|
|
* Controller interrupt.
|
|
*/
|
|
hpintr(unit)
|
|
{
|
|
struct hp_softc *ns = &hp_softc[unit];
|
|
u_char cmd, isr;
|
|
int hpc = ns->ns_port;
|
|
u_char err;
|
|
|
|
/* Save cmd, clear interrupt */
|
|
cmd = inb(hpc + ds_cmd);
|
|
loop:
|
|
isr = inb(hpc + ds0_isr);
|
|
outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG0 | DSCM_START);
|
|
outb(hpc + ds0_isr, isr);
|
|
|
|
/* Receiver error */
|
|
if (isr & DSIS_RXE) {
|
|
/* need to read these registers to clear status */
|
|
err = inb(hpc + ds0_rsr);
|
|
(void) inb(hpc + 0xD);
|
|
(void) inb(hpc + 0xE);
|
|
(void) inb(hpc + 0xF);
|
|
ns->ns_if.if_ierrors++;
|
|
#ifdef HP_LOG_ERRORS
|
|
isr |= DSIS_RX;
|
|
#endif
|
|
}
|
|
/* We received something */
|
|
if (isr & DSIS_RX) {
|
|
u_char bnry;
|
|
u_char curr;
|
|
u_short addr;
|
|
int len;
|
|
int i;
|
|
unsigned char c;
|
|
|
|
while (1) {
|
|
outb(hpc + ds_cmd, DSCM_START | DSCM_NODMA | DSCM_PG0);
|
|
bnry = inb(hpc + ds0_bnry);
|
|
outb(hpc + ds_cmd, DSCM_START | DSCM_NODMA | DSCM_PG1);
|
|
curr = inb(hpc + ds1_curr);
|
|
|
|
#ifdef HP_DEBUG
|
|
printf("hpintr: receive isr=0x%02x bnry=0x%02x curr=0x%02x\n",
|
|
isr, bnry, curr);
|
|
#endif
|
|
|
|
if (++bnry >= ns->ns_rxend)
|
|
bnry = ns->ns_rxstart;
|
|
|
|
/* if ring empty, done! */
|
|
if (bnry == curr)
|
|
break;
|
|
|
|
addr = bnry * DS_PGSIZE;
|
|
|
|
outb(hpc + hp_option, inb(hpc + hp_option) | HP_DATA);
|
|
|
|
#if 0
|
|
/* send packet with auto packet release */
|
|
outb(hpc + ds_cmd, DSCM_START | DSCM_NODMA | DSCM_PG0);
|
|
outb(hpc + ds0_rbcr1, 0x0f);
|
|
outb(hpc + ds0_dcr, ns->ns_mode | DSDC_AR);
|
|
outb(hpc + ds_cmd, DSCM_SENDP | DSCM_PG0 | DSCM_START);
|
|
#endif
|
|
|
|
/* get length */
|
|
hpfetch(ns, (void *) & ns->ns_ph, addr, sizeof ns->ns_ph);
|
|
addr += sizeof ns->ns_ph;
|
|
|
|
#ifdef HP_DEBUG
|
|
printf("hpintr: sendp packet hdr: %x %x %x %x\n",
|
|
ns->ns_ph.pr_status,
|
|
ns->ns_ph.pr_nxtpg,
|
|
ns->ns_ph.pr_sz0,
|
|
ns->ns_ph.pr_sz1);
|
|
#endif
|
|
|
|
#ifdef HP_LOG_ERRORS
|
|
if (ns->ns_ph.pr_status & (DSRS_CRC | DSRS_FO | DSRS_DFR)) {
|
|
/* Get packet header */
|
|
if (len > 14)
|
|
len = 14;
|
|
hpfetch(ns, (void *) (ns->ns_pb), addr, len);
|
|
|
|
/* move boundary up */
|
|
bnry = ns->ns_ph.pr_nxtpg;
|
|
if (--bnry < ns->ns_rxstart)
|
|
bnry = ns->ns_rxend - 1;
|
|
outb(hpc + ds_cmd, DSCM_START | DSCM_NODMA | DSCM_PG0);
|
|
outb(hpc + ds0_bnry, bnry);
|
|
|
|
printf("hp%d: receive error status=0x%02x\n", unit,
|
|
ns->ns_ph.pr_status);
|
|
printf("hp%d: packet header:", unit);
|
|
{
|
|
int n;
|
|
for (n = 0; n < len; n++)
|
|
printf(" %02x", ns->ns_pb[n]);
|
|
}
|
|
printf("\n");
|
|
|
|
continue;
|
|
}
|
|
#endif
|
|
|
|
ns->ns_if.if_ipackets++;
|
|
len = ns->ns_ph.pr_sz0 + (ns->ns_ph.pr_sz1 << 8);
|
|
if (len < ETHER_MIN_LEN || len > ETHER_MAX_LEN) {
|
|
printf("hpintr: bnry %x curr %x\n", bnry, curr);
|
|
printf("hpintr: packet hdr: %x %x %x %x\n",
|
|
ns->ns_ph.pr_status,
|
|
ns->ns_ph.pr_nxtpg,
|
|
ns->ns_ph.pr_sz0,
|
|
ns->ns_ph.pr_sz1);
|
|
printf("isr = 0x%x reg_isr=0x%x\n",
|
|
isr, inb(hpc + ds0_isr));
|
|
outb(hpc + ds_cmd, DSCM_START | DSCM_NODMA | DSCM_PG0);
|
|
bnry = inb(hpc + ds0_bnry);
|
|
outb(hpc + ds_cmd, DSCM_START | DSCM_NODMA | DSCM_PG1);
|
|
curr = inb(hpc + ds1_curr);
|
|
printf("hpintr: new bnry %x curr %x\n", bnry, curr);
|
|
printf("hpintr: bad len %d\n-hanging-\n",
|
|
len);
|
|
while (1);
|
|
}
|
|
/* read packet */
|
|
hpfetch(ns, (void *) (ns->ns_pb), addr, len);
|
|
|
|
/* move boundary up */
|
|
bnry = ns->ns_ph.pr_nxtpg;
|
|
if (--bnry < ns->ns_rxstart)
|
|
bnry = ns->ns_rxend - 1;
|
|
outb(hpc + ds_cmd, DSCM_START | DSCM_NODMA | DSCM_PG0);
|
|
outb(hpc + ds0_bnry, bnry);
|
|
|
|
#ifdef HP_DEBUG
|
|
printf("hpintr: receive done bnry=0x%02x\n", bnry);
|
|
#endif
|
|
|
|
outb(hpc + hp_option, inb(hpc + hp_option) & ~HP_DATA);
|
|
|
|
/* adjust for ether header and checksum */
|
|
len -= sizeof(struct ether_header) + sizeof(long);
|
|
|
|
/* process packet */
|
|
hpread(ns, (void *) (ns->ns_pb), len);
|
|
}
|
|
}
|
|
/* Transmit error */
|
|
if (isr & DSIS_TXE) {
|
|
ns->ns_flags &= ~DSF_LOCK;
|
|
/* Need to read these registers to clear status */
|
|
ns->ns_if.if_collisions += inb(hpc + ds0_tbcr0);
|
|
ns->ns_if.if_oerrors++;
|
|
}
|
|
/* Packet Transmitted */
|
|
if (isr & DSIS_TX) {
|
|
ns->ns_flags &= ~DSF_LOCK;
|
|
++ns->ns_if.if_opackets;
|
|
ns->ns_if.if_collisions += inb(hpc + ds0_tbcr0);
|
|
}
|
|
/* Receiver ovverun? */
|
|
if (isr & DSIS_ROVRN) {
|
|
log(LOG_ERR, "hp%d: error: isr %x\n", ns - hp_softc, isr
|
|
/* , DSIS_BITS */ );
|
|
outb(hpc + ds0_rbcr0, 0);
|
|
outb(hpc + ds0_rbcr1, 0);
|
|
outb(hpc + ds0_tcr, DSTC_LB0);
|
|
outb(hpc + ds0_rcr, DSRC_MON);
|
|
outb(hpc + ds_cmd, DSCM_START | DSCM_NODMA);
|
|
outb(hpc + ds0_rcr, ns->ns_rcr);
|
|
outb(hpc + ds0_tcr, 0);
|
|
}
|
|
/* Any more to send? */
|
|
outb(hpc + ds_cmd, DSCM_NODMA | DSCM_PG0 | DSCM_START);
|
|
hpstart(&ns->ns_if);
|
|
outb(hpc + ds_cmd, cmd);
|
|
outb(hpc + ds0_imr, 0xff);
|
|
|
|
#if NRND > 0
|
|
if (irs)
|
|
rnd_add_uint32(&sc->rnd_source, isr);
|
|
#endif
|
|
|
|
/* Still more to do? */
|
|
isr = inb(hpc + ds0_isr);
|
|
if (isr)
|
|
goto loop;
|
|
}
|
|
/*
|
|
* Pass a packet to the higher levels.
|
|
* We deal with the trailer protocol here.
|
|
*/
|
|
hpread(ns, buf, len)
|
|
struct hp_softc *ns;
|
|
char *buf;
|
|
int len;
|
|
{
|
|
struct ether_header *eh;
|
|
struct mbuf *m;
|
|
int off, resid;
|
|
struct ifqueue *inq;
|
|
u_short etype;
|
|
|
|
/*
|
|
* Deal with trailer protocol: if type is trailer type
|
|
* get true type from first 16-bit word past data.
|
|
* Remember that type was trailer by setting off.
|
|
*/
|
|
eh = (struct ether_header *) buf;
|
|
etype = ntohs((u_short) eh->ether_type);
|
|
#define hpdataaddr(eh, off, type) ((type)(((void *)((eh)+1)+(off))))
|
|
if (etype >= ETHERTYPE_TRAIL &&
|
|
etype < ETHERTYPE_TRAIL + ETHERTYPE_NTRAILER) {
|
|
off = (etype - ETHERTYPE_TRAIL) * 512;
|
|
if (off >= ETHERMTU)
|
|
return; /* sanity */
|
|
eh->ether_type = *hpdataaddr(eh, off, u_short *);
|
|
resid = ntohs(*(hpdataaddr(eh, off + 2, u_short *)));
|
|
if (off + resid > len)
|
|
return; /* sanity */
|
|
len = off + resid;
|
|
} else
|
|
off = 0;
|
|
|
|
if (len == 0)
|
|
return;
|
|
|
|
#if NBPFILTER > 0
|
|
if (ns->ns_bpf)
|
|
bpf_tap(ns->ns_bpf, buf, len + sizeof(struct ether_header));
|
|
#endif
|
|
|
|
if ((ns->ns_if.if_flags & IFF_PROMISC)
|
|
&& memcmp(eh->ether_dhost, ns->ns_addrp,
|
|
sizeof(eh->ether_dhost)) != 0
|
|
&& memcmp(eh->ether_dhost, etherbroadcastaddr,
|
|
sizeof(eh->ether_dhost)) != 0)
|
|
return;
|
|
|
|
/*
|
|
* Pull packet off interface. Off is nonzero if packet
|
|
* has trailing header; hpget will then force this header
|
|
* information to be at the front, but we still have to drop
|
|
* the type and length which are at the front of any trailer data.
|
|
*/
|
|
m = hpget(buf, len, off, &ns->ns_if);
|
|
if (m == 0)
|
|
return;
|
|
|
|
ether_input(&ns->ns_if, eh, m);
|
|
}
|
|
/*
|
|
* Supporting routines
|
|
*/
|
|
|
|
/*
|
|
* Pull read data off a interface.
|
|
* Len is length of data, with local net header stripped.
|
|
* Off is non-zero if a trailer protocol was used, and
|
|
* gives the offset of the trailer information.
|
|
* We copy the trailer information and then all the normal
|
|
* data into mbufs. When full cluster sized units are present
|
|
* we copy into clusters.
|
|
*/
|
|
struct mbuf *
|
|
hpget(buf, totlen, off0, ifp)
|
|
void *buf;
|
|
int totlen, off0;
|
|
struct ifnet *ifp;
|
|
{
|
|
struct mbuf *top, **mp, *m, *p;
|
|
int off = off0, len;
|
|
void *cp = buf;
|
|
char *epkt;
|
|
|
|
buf += sizeof(struct ether_header);
|
|
cp = buf;
|
|
epkt = cp + totlen;
|
|
|
|
|
|
if (off) {
|
|
cp += off + 2 * sizeof(u_short);
|
|
totlen -= 2 * sizeof(u_short);
|
|
}
|
|
MGETHDR(m, M_DONTWAIT, MT_DATA);
|
|
if (m == 0)
|
|
return (0);
|
|
m->m_pkthdr.rcvif = ifp;
|
|
m->m_pkthdr.len = totlen;
|
|
m->m_len = MHLEN;
|
|
|
|
top = 0;
|
|
mp = ⊤
|
|
while (totlen > 0) {
|
|
if (top) {
|
|
MGET(m, M_DONTWAIT, MT_DATA);
|
|
if (m == 0) {
|
|
m_freem(top);
|
|
return (0);
|
|
}
|
|
m->m_len = MLEN;
|
|
}
|
|
len = min(totlen, epkt - cp);
|
|
if (len >= MINCLSIZE) {
|
|
MCLGET(m, M_DONTWAIT);
|
|
if (m->m_flags & M_EXT)
|
|
m->m_len = len = min(len, MCLBYTES);
|
|
else
|
|
len = m->m_len;
|
|
} else {
|
|
/*
|
|
* Place initial small packet/header at end of mbuf.
|
|
*/
|
|
if (len < m->m_len) {
|
|
if (top == 0 && len + max_linkhdr <= m->m_len)
|
|
m->m_data += max_linkhdr;
|
|
m->m_len = len;
|
|
} else
|
|
len = m->m_len;
|
|
}
|
|
memcpy(mtod(m, void *), cp, (unsigned) len);
|
|
cp += len;
|
|
*mp = m;
|
|
mp = &m->m_next;
|
|
totlen -= len;
|
|
if (cp == epkt)
|
|
cp = buf;
|
|
}
|
|
return (top);
|
|
}
|
|
/*
|
|
* Process an ioctl request.
|
|
*/
|
|
hpioctl(struct ifnet *ifp, u_long cmd, void *data)
|
|
{
|
|
struct ifaddr *ifa = (struct ifaddr *) data;
|
|
struct hp_softc *ns = &hp_softc[ifp->if_unit];
|
|
struct ifreq *ifr = (struct ifreq *) data;
|
|
int s = splnet(), error = 0;
|
|
|
|
|
|
switch (cmd) {
|
|
|
|
case SIOCINITIFADDR:
|
|
ifp->if_flags |= IFF_UP;
|
|
|
|
hpinit(ifp->if_unit);
|
|
switch (ifa->ifa_addr->sa_family) {
|
|
#ifdef INET
|
|
case AF_INET:
|
|
((struct arpcom *) ifp)->ac_ipaddr =
|
|
IA_SIN(ifa)->sin_addr;
|
|
arpwhohas((struct arpcom *) ifp, &IA_SIN(ifa)->sin_addr);
|
|
break;
|
|
#endif
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case SIOCSIFFLAGS:
|
|
if ((error = ifioctl_common(ifp, cmd, data)) != 0)
|
|
break;
|
|
#ifdef HP_DEBUG
|
|
printf("hp: setting flags, up: %s, running: %s\n",
|
|
ifp->if_flags & IFF_UP ? "yes" : "no",
|
|
ifp->if_flags & IFF_RUNNING ? "yes" : "no");
|
|
#endif
|
|
/* XXX re-use ether_ioctl() */
|
|
switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) {
|
|
case IFF_RUNNING:
|
|
ifp->if_flags &= ~IFF_RUNNING;
|
|
outb(ns->ns_port + ds_cmd, DSCM_STOP | DSCM_NODMA);
|
|
break;
|
|
case IFF_UP:
|
|
hpinit(ifp->if_unit);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
#ifdef notdef
|
|
case SIOCGHWADDR:
|
|
memcpy((void *) & ifr->ifr_data, (void *) ns->ns_addrp,
|
|
sizeof(ns->ns_addrp));
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
error = ether_ioctl(ifp, cmd, data);
|
|
}
|
|
splx(s);
|
|
return (error);
|
|
}
|
|
#endif
|