[src/trunk]: src/sys/dev/usb Oops, fix previous again. Really support TSOv4.

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

details:   https://anonhg.NetBSD.org/src/rev/d7241a496458
branches:  trunk
changeset: 448635:d7241a496458
user:      rin <rin%NetBSD.org@localhost>
date:      Wed Feb 06 08:01:24 2019 +0000

description:
Oops, fix previous again. Really support TSOv4.

diffstat:

 sys/dev/usb/if_axen.c |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (28 lines):

diff -r 460d01264dd2 -r d7241a496458 sys/dev/usb/if_axen.c
--- a/sys/dev/usb/if_axen.c     Wed Feb 06 07:59:24 2019 +0000
+++ b/sys/dev/usb/if_axen.c     Wed Feb 06 08:01:24 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_axen.c,v 1.30 2019/02/06 07:59:24 rin Exp $ */
+/*     $NetBSD: if_axen.c,v 1.31 2019/02/06 08:01:24 rin Exp $ */
 /*     $OpenBSD: if_axen.c,v 1.3 2013/10/21 10:10:22 yuo Exp $ */
 
 /*
@@ -23,7 +23,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_axen.c,v 1.30 2019/02/06 07:59:24 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_axen.c,v 1.31 2019/02/06 08:01:24 rin Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -1305,7 +1305,8 @@
 
        hdr.plen = htole32(m->m_pkthdr.len);
 
-       hdr.gso = 0; /* disable segmentation offloading */
+       hdr.gso = (m->m_pkthdr.csum_flags & M_CSUM_TSOv4) ?
+           m->m_pkthdr.segsz : 0;
        if ((length % boundary) == 0) {
                DPRINTF(("%s: boundary hit\n", device_xname(sc->axen_dev)));
                hdr.gso |= 0x80008000;  /* XXX enable padding */