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Vlan did not set the value of if_hw_tsomax, so when vlan

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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.

Reviewed by:	glebius
MFC after:	2 weeks
This commit is contained in:
Rick Macklem 2014-04-15 21:48:35 +00:00
parent 380174cbe4
commit bd9fd667c4
1 changed files with 2 additions and 0 deletions
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2
sys/net/if_vlan.c
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@ -1511,6 +1511,8 @@ 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) {