if.zip_open

/* * Copyright (c) 1988 Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Tektronix Inc. * * 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 the University of * California, Berkeley and its contributors. * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. * * @(#)if_hy.c 7.7 (Berkeley) 12/16/90 */ /* * 4.2 BSD Unix Kernel - Vax Network Interface Support * * $Header: if_hy.c,v 10.1 84/07/22 21:02:56 steveg Exp $ * $Locker: $ * * Modifications from Berkeley 4.2 BSD * Copyright (c) 1983, Tektronix Inc. * All Rights Reserved * * $Log: if_hy.c,v $ * Revision 10.1 84/07/22 21:02:56 steveg * define PI13 (moved from if_hyreg.h, somehow got dropped in the process) * rework hywatch to check for power fails first * * Revision 10.0 84/06/30 19:54:27 steveg * Big Build * * Revision 3.17 84/06/20 19:20:28 steveg * increment hy_ntime in hywatch * print out state name, csr, last command, and hy_flags when watchdog timer * expires * * Revision 3.16 84/06/20 19:09:34 steveg * turn on continuous logging by default * * Revision 3.15 84/05/30 22:19:09 steveg * changes to reflect new layout ot statistics data * * Revision 3.14 84/05/30 19:25:15 steveg * move driver states to if_hy.h so log printing programs can use them * * Revision 3.13 84/05/30 17:13:26 steveg * make it compile * * Revision 3.12 84/05/30 13:46:16 steveg * rework logging * * Revision 3.11 84/05/18 19:35:02 steveg * clear IFF_RUNNING and IFF_UP on unibus reset to force resource allocation * by the init routine * * Revision 3.10 84/05/04 12:14:44 steveg * more rework to make it actually work under 4.2 * * Revision 3.9 84/05/01 23:34:52 steveg * fix typo so it compiles (unit -> ui->ui_unit) * * Revision 3.8 84/05/01 23:18:30 steveg * changes after talking with rickk * - check power off more closely * - support remote loopback through A710 adapters * - IMPLINK -> HYLINK * - return EHOSTUNREACH on hyroute failure * - bump if_collisions on abnormal interrupts that aren't input or output * * */ #include "hy.h" #if NHY > 0 /* * Network Systems Copropration Hyperchanel interface */ #include "../include/pte.h" #include "sys/param.h" #include "sys/systm.h" #include "sys/mbuf.h" #include "sys/buf.h" #include "sys/protosw.h" #include "sys/socket.h" #include "sys/vmmac.h" #include "sys/errno.h" #include "sys/time.h" #include "sys/kernel.h" #include "sys/ioctl.h" #include "net/if.h" #include "net/netisr.h" #include "net/route.h" #ifdef INET #include "netinet/in.h" #include "netinet/in_systm.h" #include "netinet/in_var.h" #include "netinet/ip.h" #endif #include "../include/cpu.h" #include "../include/mtpr.h" #include "../uba/ubareg.h" #include "../uba/ubavar.h" /* * configuration specific paramters * - change as appropriate for particular installaions */ #define HYROUTE #define HYELOG #define HYLOG #define HYMTU 1100 #define PI13 #ifdef DEBUG #define HYLOG #endif #include "if_hy.h" #include "if_hyreg.h" #include "if_uba.h" int hyprobe(), hyattach(), hyinit(), hyioctl(); int hyoutput(), hyreset(), hywatch(); struct uba_device *hyinfo[NHY]; u_short hystd[] = { 0772410, 0 }; struct uba_driver hydriver = { hyprobe, 0, hyattach, 0, hystd, "hy", hyinfo }; /* * Hyperchannel software status per interface. * * Each interface is referenced by a network interface structure, * hy_if, which the routing code uses to locate the interface. * This structure contains the output queue for the interface, its address, ... * We also have, for each interface, a UBA interface structure, which * contains information about the UNIBUS resources held by the interface: * map registers, buffered data paths, etc. Information is cached in this * structure for use by the if_uba.c routines in running the interface * efficiently. */ struct hy_softc { struct ifnet hy_if; /* network-visible interface */ struct ifuba hy_ifuba; /* UNIBUS resources */ short hy_flags; /* flags */ short hy_state; /* driver state */ u_short hy_host; /* local host number */ struct in_addr hy_addr; /* internet address */ int hy_olen; /* packet length on output */ int hy_lastwcr; /* last command's word count */ short hy_savedstate; /* saved for reissue after status */ short hy_savedcmd; /* saved command for reissue */ int hy_savedcount; /* saved byte count for reissue */ int hy_savedaddr; /* saved unibus address for reissue */ int hy_ntime; /* number of timeouts since last cmd */ int hy_retry; /* retry counter */ struct hy_stat hy_stat; /* statistics */ struct hy_status hy_status; /* status */ } hy_softc[NHY]; #ifdef HYELOG u_long hy_elog[HYE_SIZE]; #endif #ifdef HYLOG struct hy_log hy_log; #endif #ifdef HYROUTE struct hy_route hy_route[NHY]; #endif #ifdef DEBUG #define printL printf #define printD if (hy_debug_flag) printf int hy_debug_flag = 0; /* * hy_nodebug bit 0x01 set hy_debug_flag on hycancel * hy_nodebug bit 0x02 set hy_debug_flag on command reissue * hy_nodebug bit 0x04 set hy_debug_flag on abnormal interrupt */ int hy_nodebug = 0x0; #endif #define SCANINTERVAL 10 /* seconds */ #define MAXINTERVAL 20 /* seconds (max action) */ /* * Cause a device interrupt. This code uses a buffer starting at * location zero on the unibus (which is already mapped by the * autoconfigure code in the kernel). */ hyprobe(reg) caddr_t reg; { register int br, cvec; /* r11, r10 value-result */ register struct hydevice *addr = (struct hydevice *) reg; #ifdef lint br = 0; cvec = br; br = cvec; hyint(0); #endif /* * request adapter status to a buffer starting at unibus location 0 */ addr->hyd_bar = 0; addr->hyd_wcr = -((sizeof(struct hy_status) + 1) >> 1); addr->hyd_dbuf = HYF_STATUS; #ifdef PI13 addr->hyd_csr |= S_GO | S_IE | S_IATTN; #else addr->hyd_csr |= S_GO | S_IE; #endif DELAY(10000); #ifdef PI13 addr->hyd_csr |= S_CLRINT; /* clear any stacked interrupts */ #endif addr->hyd_csr &= ~(S_IE | S_CLRINT); /* disable further interrupts */ return(sizeof(struct hydevice)); } /* * Interface exists: make available by filling in network interface * record. System will initialize the interface when it is ready * to accept packets. */ hyattach(ui) struct uba_device *ui; { register struct hy_softc *is = &hy_softc[ui->ui_unit]; register struct ifnet *ifp = &is->hy_if; ifp->if_uni