[src/trunk]: src/sys/dev/ic In ea_writembuf(), reset the DMA pointer for each...

[bjh21 <bjh21%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e95e09ff7cfa
branches:  trunk
changeset: 508089:e95e09ff7cfa
user:      bjh21 <bjh21%NetBSD.org@localhost>
date:      Fri Apr 06 00:02:49 2001 +0000

description:
In ea_writembuf(), reset the DMA pointer for each mbuf we copy, since
odd-sized mbufs will confuse things.  This makes transmission of odd-sized
packets work.

diffstat:

 sys/dev/ic/seeq8005.c |  16 ++++++----------
 1 files changed, 6 insertions(+), 10 deletions(-)

diffs (47 lines):

diff -r 6068f7e66333 -r e95e09ff7cfa sys/dev/ic/seeq8005.c
--- a/sys/dev/ic/seeq8005.c     Thu Apr 05 23:56:43 2001 +0000
+++ b/sys/dev/ic/seeq8005.c     Fri Apr 06 00:02:49 2001 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: seeq8005.c,v 1.21 2001/04/05 22:55:46 bjh21 Exp $ */
+/* $NetBSD: seeq8005.c,v 1.22 2001/04/06 00:02:49 bjh21 Exp $ */
 
 /*
  * Copyright (c) 2000 Ben Harris
@@ -66,7 +66,7 @@
 #include <sys/types.h>
 #include <sys/param.h>
 
-__RCSID("$NetBSD: seeq8005.c,v 1.21 2001/04/05 22:55:46 bjh21 Exp $");
+__RCSID("$NetBSD: seeq8005.c,v 1.22 2001/04/06 00:02:49 bjh21 Exp $");
 
 #include <sys/systm.h>
 #include <sys/endian.h>
@@ -895,24 +895,20 @@
        /*
         * Copy the datagram to the packet buffer.
         */
-       ea_writebuf(sc, NULL, bufstart + 4, 0);
-
        len = 0;
        for (m = m0; m; m = m->m_next) {
                if (m->m_len == 0)
                        continue;
-               ea_writebuf(sc, mtod(m, caddr_t), -1, m->m_len);
+               ea_writebuf(sc, mtod(m, caddr_t), bufstart + 4 + len,
+                   m->m_len);
                len += m->m_len;
        }
 
-       /* If packet size is odd round up to the next 16 bit boundry */
-       if (len % 2)
-               ++len;
-
        len = max(len, ETHER_MIN_LEN);
 
-       ea_writebuf(sc, NULL, bufstart + 4 + len, 0);
        /* Follow it with a NULL packet header */
+       memset(hdr, 0, 4);
+       ea_writebuf(sc, hdr, bufstart + 4 + len, 4);
        bus_space_write_2(sc->sc_iot, sc->sc_ioh, SEEQ_BUFWIN, 0x0000);
        bus_space_write_2(sc->sc_iot, sc->sc_ioh, SEEQ_BUFWIN, 0x0000);