[src/trunk]: src/sys/dev/pci unload payload dma map upon command completion

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

details:   https://anonhg.NetBSD.org/src/rev/c311eedb923c
branches:  trunk
changeset: 323216:c311eedb923c
user:      jakllsch <jakllsch%NetBSD.org@localhost>
date:      Sun Jun 03 19:50:20 2018 +0000

description:
unload payload dma map upon command completion

diffstat:

 sys/dev/pci/ld_virtio.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r 18f21ccf78b2 -r c311eedb923c sys/dev/pci/ld_virtio.c
--- a/sys/dev/pci/ld_virtio.c   Sun Jun 03 19:47:35 2018 +0000
+++ b/sys/dev/pci/ld_virtio.c   Sun Jun 03 19:50:20 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ld_virtio.c,v 1.18 2018/06/03 19:47:35 jakllsch Exp $  */
+/*     $NetBSD: ld_virtio.c,v 1.19 2018/06/03 19:50:20 jakllsch Exp $  */
 
 /*
  * Copyright (c) 2010 Minoura Makoto.
@@ -26,7 +26,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ld_virtio.c,v 1.18 2018/06/03 19:47:35 jakllsch Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ld_virtio.c,v 1.19 2018/06/03 19:50:20 jakllsch Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -447,6 +447,7 @@
                        0, bp->b_bcount,
                        (bp->b_flags & B_READ)?BUS_DMASYNC_POSTREAD
                                              :BUS_DMASYNC_POSTWRITE);
+       bus_dmamap_unload(virtio_dmat(vsc), vr->vr_payload);
        bus_dmamap_sync(virtio_dmat(vsc), vr->vr_cmdsts,
                        sizeof(struct virtio_blk_req_hdr), sizeof(uint8_t),
                        BUS_DMASYNC_POSTREAD);