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[src/trunk]: src/sys/dev/qbus Discard these old leftovers from the IMP and tr...
details: https://anonhg.NetBSD.org/src/rev/0cbe40af63c0
branches: trunk
changeset: 485524:0cbe40af63c0
user: ragge <ragge%NetBSD.org@localhost>
date: Sun Apr 30 11:50:50 2000 +0000
description:
Discard these old leftovers from the IMP and trailer days!
diffstat:
sys/dev/qbus/if_uba.c | 395 --------------------------------------------------
sys/dev/qbus/if_uba.h | 143 ------------------
2 files changed, 0 insertions(+), 538 deletions(-)
diffs (truncated from 546 to 300 lines):
diff -r 26cc67c21b48 -r 0cbe40af63c0 sys/dev/qbus/if_uba.c
--- a/sys/dev/qbus/if_uba.c Sun Apr 30 11:47:21 2000 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,395 +0,0 @@
-/* $NetBSD: if_uba.c,v 1.17 2000/03/30 12:45:37 augustss Exp $ */
-
-/*
- * Copyright (c) 1982, 1986, 1988 Regents of the University of California.
- * 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 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_uba.c 7.16 (Berkeley) 12/16/90
- */
-
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/malloc.h>
-#include <sys/mbuf.h>
-#include <sys/map.h>
-#include <sys/buf.h>
-#include <sys/socket.h>
-#include <sys/syslog.h>
-
-#include <net/if.h>
-
-#include <machine/pte.h>
-#include <machine/mtpr.h>
-#include <machine/vmparam.h>
-#include <machine/cpu.h>
-
-#include <vax/if/if_uba.h>
-#include <vax/uba/ubareg.h>
-#include <vax/uba/ubavar.h>
-
-static int if_ubaalloc __P((struct ifubinfo *, struct ifrw *, int));
-static void rcv_xmtbuf __P((struct ifxmt *));
-static void restor_xmtbuf __P((struct ifxmt *));
-
-/*
- * Routines supporting UNIBUS network interfaces.
- *
- * TODO:
- * Support interfaces using only one BDP statically.
- */
-
-/*
- * Init UNIBUS for interface whose headers of size hlen are to
- * end on a page boundary. We allocate a UNIBUS map register for the page
- * with the header, and nmr more UNIBUS map registers for i/o on the adapter,
- * doing this once for each read and once for each write buffer. We also
- * allocate page frames in the mbuffer pool for these pages.
- */
-int
-if_ubaminit(ifu, uh, hlen, nmr, ifr, nr, ifw, nw)
- struct ifubinfo *ifu;
- struct uba_softc *uh;
- int hlen, nmr, nr, nw;
- struct ifrw *ifr;
- struct ifxmt *ifw;
-{
- caddr_t p;
- caddr_t cp;
- int i, nclbytes, off;
-
- if (hlen)
- off = MCLBYTES - hlen;
- else
- off = 0;
- nclbytes = roundup(nmr * VAX_NBPG, MCLBYTES);
- if (hlen)
- nclbytes += MCLBYTES;
- if (ifr[0].ifrw_addr)
- cp = ifr[0].ifrw_addr - off;
- else {
- cp = (caddr_t)malloc((u_long)((nr + nw) * nclbytes), M_DEVBUF,
- M_NOWAIT);
- if (cp == 0)
- return (0);
- p = cp;
- for (i = 0; i < nr; i++) {
- ifr[i].ifrw_addr = p + off;
- p += nclbytes;
- }
- for (i = 0; i < nw; i++) {
- ifw[i].ifw_base = p;
- ifw[i].ifw_addr = p + off;
- p += nclbytes;
- }
- ifu->iff_hlen = hlen;
- ifu->iff_softc = uh;
- ifu->iff_uba = uh->uh_uba;
- ifu->iff_ubamr = uh->uh_mr;
- }
- for (i = 0; i < nr; i++)
- if (if_ubaalloc(ifu, &ifr[i], nmr) == 0) {
- nr = i;
- nw = 0;
- goto bad;
- }
- for (i = 0; i < nw; i++)
- if (if_ubaalloc(ifu, &ifw[i].ifrw, nmr) == 0) {
- nw = i;
- goto bad;
- }
- while (--nw >= 0) {
- for (i = 0; i < nmr; i++)
- ifw[nw].ifw_wmap[i] = ifw[nw].ifw_mr[i];
- ifw[nw].ifw_xswapd = 0;
- ifw[nw].ifw_flags = IFRW_W;
- ifw[nw].ifw_nmr = nmr;
- }
- return (1);
-bad:
- while (--nw >= 0)
- ubarelse(ifu->iff_softc, &ifw[nw].ifw_info);
- while (--nr >= 0)
- ubarelse(ifu->iff_softc, &ifr[nr].ifrw_info);
- free(cp, M_DEVBUF);
- ifr[0].ifrw_addr = 0;
- return (0);
-}
-
-/*
- * Setup an ifrw structure by allocating UNIBUS map registers,
- * possibly a buffered data path, and initializing the fields of
- * the ifrw structure to minimize run-time overhead.
- */
-static int
-if_ubaalloc(ifu, ifrw, nmr)
- struct ifubinfo *ifu;
- struct ifrw *ifrw;
- int nmr;
-{
- int info;
-
- info =
- uballoc(ifu->iff_softc, ifrw->ifrw_addr, nmr*VAX_NBPG + ifu->iff_hlen,
- ifu->iff_flags);
- if (info == 0)
- return (0);
- ifrw->ifrw_info = info;
- ifrw->ifrw_bdp = UBAI_BDP(info);
- ifrw->ifrw_proto = UBAMR_MRV | (UBAI_BDP(info) << UBAMR_DPSHIFT);
- ifrw->ifrw_mr = &ifu->iff_ubamr[UBAI_MR(info) + (ifu->iff_hlen? 1 : 0)];
- return (1);
-}
-
-/*
- * Pull read data off a interface.
- * Totlen is length of data, with local net header stripped.
- * When full cluster sized units are present
- * on the interface on cluster boundaries we can get them more
- * easily by remapping, and take advantage of this here.
- * Save a pointer to the interface structure and the total length,
- * so that protocols can determine where incoming packets arrived.
- * Note: we may be called to receive from a transmit buffer by some
- * devices. In that case, we must force normal mapping of the buffer,
- * so that the correct data will appear (only unibus maps are
- * changed when remapping the transmit buffers).
- */
-struct mbuf *
-if_ubaget(ifu, ifr, totlen, ifp)
- struct ifubinfo *ifu;
- struct ifrw *ifr;
- int totlen;
- struct ifnet *ifp;
-{
- struct mbuf *top, **mp;
- struct mbuf *m;
- caddr_t cp = ifr->ifrw_addr + ifu->iff_hlen, pp;
- int len;
- top = 0;
- mp = ⊤
- MGETHDR(m, M_DONTWAIT, MT_DATA);
- if (m == 0){
- return ((struct mbuf *)NULL);
- }
- m->m_pkthdr.rcvif = ifp;
- m->m_pkthdr.len = totlen;
- m->m_len = MHLEN;
-
- if (ifr->ifrw_flags & IFRW_W){
- rcv_xmtbuf((struct ifxmt *)ifr);
- }
- while (totlen > 0) {
- if (top) {
- MGET(m, M_DONTWAIT, MT_DATA);
- if (m == 0) {
- m_freem(top);
- top = 0;
- goto out;
- }
- m->m_len = MLEN;
- }
- len = totlen;
- if (len >= MINCLSIZE) {
- struct pte *cpte, *ppte;
- int x, *ip, i;
-
- MCLGET(m, M_DONTWAIT);
- if ((m->m_flags & M_EXT) == 0){
- goto nopage;
- }
- len = min(len, MCLBYTES);
- m->m_len = len;
- if (!claligned(cp)){
- goto copy;
- }
- /*
- * Switch pages mapped to UNIBUS with new page pp,
- * as quick form of copy. Remap UNIBUS and invalidate.
- */
- pp = mtod(m, char *);
- cpte = (struct pte *)kvtopte(cp);
- ppte = (struct pte *)kvtopte(pp);
- x = vax_btop(cp - ifr->ifrw_addr);
- ip = (int *)&ifr->ifrw_mr[x];
- for (i = 0; i < MCLBYTES/VAX_NBPG; i++) {
- struct pte t;
- t = *ppte; *ppte++ = *cpte; *cpte = t;
- *ip++ = cpte++->pg_pfn|ifr->ifrw_proto;
- mtpr(cp,PR_TBIS);
- cp += VAX_NBPG;
- mtpr((caddr_t)pp,PR_TBIS);
- pp += VAX_NBPG;
- }
- goto nocopy;
- }
-nopage:
- if (len < m->m_len) {
- /*
- * Place initial small packet/header at end of mbuf.
- */
- if (top == 0 && len + max_linkhdr <= m->m_len)
- m->m_data += max_linkhdr;
- m->m_len = len;
- } else
- len = m->m_len;
-copy:
- bcopy(cp, mtod(m, caddr_t), (unsigned)len);
- cp += len;
-nocopy:
- *mp = m;
- mp = &m->m_next;
- totlen -= len;
- }
-out:
- if (ifr->ifrw_flags & IFRW_W){
- restor_xmtbuf((struct ifxmt *)ifr);
- }
- return (top);
-}
-
-/*
- * Change the mapping on a transmit buffer so that if_ubaget may
- * receive from that buffer. Copy data from any pages mapped to Unibus
- * into the pages mapped to normal kernel virtual memory, so that
- * they can be accessed and swapped as usual. We take advantage
- * of the fact that clusters are placed on the xtofree list
- * in inverse order, finding the last one.
- */
-static void
-rcv_xmtbuf(ifw)
- struct ifxmt *ifw;
-{
- struct mbuf *m;
- struct mbuf **mprev;
- int i;
- char *cp;
-
- while ((i = ffs((long)ifw->ifw_xswapd)) != 0) {
- cp = ifw->ifw_base + i * MCLBYTES;
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