[src/trunk]: src/sys/dev/pci Correctly synchronize DMA mapping for transmissi...

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

details:   https://anonhg.NetBSD.org/src/rev/14d556a8a3d5
branches:  trunk
changeset: 569940:14d556a8a3d5
user:      lukem <lukem%NetBSD.org@localhost>
date:      Tue Sep 14 00:34:19 2004 +0000

description:
Correctly synchronize DMA mapping for transmission buffer descriptors.
>From Damien Bergamini.

diffstat:

 sys/dev/pci/if_ipw.c |  9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diffs (30 lines):

diff -r 88f93646d1ba -r 14d556a8a3d5 sys/dev/pci/if_ipw.c
--- a/sys/dev/pci/if_ipw.c      Tue Sep 14 00:32:55 2004 +0000
+++ b/sys/dev/pci/if_ipw.c      Tue Sep 14 00:34:19 2004 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_ipw.c,v 1.5 2004/09/14 00:32:55 lukem Exp $ */
+/*     $NetBSD: if_ipw.c,v 1.6 2004/09/14 00:34:19 lukem Exp $ */
 /*     Id: if_ipw.c,v 1.1.2.7 2004/08/20 11:20:11 damien Exp   */
 
 /*-
@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_ipw.c,v 1.5 2004/09/14 00:32:55 lukem Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_ipw.c,v 1.6 2004/09/14 00:34:19 lukem Exp $");
 
 /*-
  * Intel(R) PRO/Wireless 2100 MiniPCI driver
@@ -779,6 +779,11 @@
            shdr->hdr.encrypted, shdr->hdr.encrypt)); 
        DPRINTFN(5, ("!%s", ether_sprintf(shdr->hdr.src_addr))); 
        DPRINTFN(5, ("!%s\n", ether_sprintf(shdr->hdr.dst_addr)));
+
+       bus_dmamap_sync(sc->sc_dmat, sc->tbd_map, 
+           sc->txcur * sizeof (struct ipw_bd), 
+           sizeof (struct ipw_bd), BUS_DMASYNC_PREWRITE);
+
        sc->txcur = (sc->txcur + 1) % IPW_NTBD;
 
        sbuf->m = m;