Author: rmacklem
Date: Sat May  3 23:42:00 2014
New Revision: 265291
URL: http://svnweb.freebsd.org/changeset/base/265291

Log:
  MFC: r264517
  Vlan did not set the value of if_hw_tsomax, so when vlan
  was stacked on top of a network interface that set if_hw_tsomax,
  tcp_output() would see the default value instead of the value
  set by the network interface. This patch modifies vlan so that
  it sets if_hw_tsomax to the value of the parent interface.

Modified:
  stable/9/sys/net/if_vlan.c
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/net/   (props changed)

Modified: stable/9/sys/net/if_vlan.c
==============================================================================
--- stable/9/sys/net/if_vlan.c  Sat May  3 22:27:24 2014        (r265290)
+++ stable/9/sys/net/if_vlan.c  Sat May  3 23:42:00 2014        (r265291)
@@ -1501,6 +1501,8 @@ vlan_capabilities(struct ifvlan *ifv)
         * propagate the hardware-assisted flag. TSO on VLANs
         * does not necessarily require hardware VLAN tagging.
         */
+       if (p->if_hw_tsomax > 0)
+               ifp->if_hw_tsomax = p->if_hw_tsomax;
        if (p->if_capabilities & IFCAP_VLAN_HWTSO)
                ifp->if_capabilities |= p->if_capabilities & IFCAP_TSO;
        if (p->if_capenable & IFCAP_VLAN_HWTSO) {
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