[src/trunk]: src/sys/dev/pci From dyoung@ -- bump max TX DMA size to avoid pa...

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

details:   https://anonhg.NetBSD.org/src/rev/0ae8e1f88b35
branches:  trunk
changeset: 329489:0ae8e1f88b35
user:      tls <tls%NetBSD.org@localhost>
date:      Tue May 27 02:21:29 2014 +0000

description:
>From dyoung@ -- bump max TX DMA size to avoid pathological condition with TSO.

diffstat:

 sys/dev/pci/if_wm.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 7822b6542477 -r 0ae8e1f88b35 sys/dev/pci/if_wm.c
--- a/sys/dev/pci/if_wm.c       Mon May 26 20:07:25 2014 +0000
+++ b/sys/dev/pci/if_wm.c       Tue May 27 02:21:29 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_wm.c,v 1.268 2014/03/29 19:28:25 christos Exp $     */
+/*     $NetBSD: if_wm.c,v 1.269 2014/05/27 02:21:29 tls Exp $  */
 
 /*
  * Copyright (c) 2001, 2002, 2003, 2004 Wasabi Systems, Inc.
@@ -76,7 +76,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.268 2014/03/29 19:28:25 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.269 2014/05/27 02:21:29 tls Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -167,7 +167,7 @@
 #define        WM_NEXTTX(sc, x)        (((x) + 1) & WM_NTXDESC_MASK(sc))
 #define        WM_NEXTTXS(sc, x)       (((x) + 1) & WM_TXQUEUELEN_MASK(sc))
 
-#define        WM_MAXTXDMA             round_page(IP_MAXPACKET) /* for TSO */
+#define        WM_MAXTXDMA              (2 * round_page(IP_MAXPACKET)) /* for TSO */
 
 /*
  * Receive descriptor list size.  We have one Rx buffer for normal