Date: Sat, 29 Apr 2017 08:29:00 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r317585 - head/sys/net Message-ID: <201704290829.v3T8T0HT043381@repo.freebsd.org>
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Author: mav Date: Sat Apr 29 08:28:59 2017 New Revision: 317585 URL: https://svnweb.freebsd.org/changeset/base/317585 Log: Propagate IFCAP_LRO from trunk to vlan interface. False positive here cost nothing, while false negative may lead to some confusions. MFC after: 2 weeks Sponsored by: iXsystems, Inc. Modified: head/sys/net/if_vlan.c Modified: head/sys/net/if_vlan.c ============================================================================== --- head/sys/net/if_vlan.c Sat Apr 29 07:59:09 2017 (r317584) +++ head/sys/net/if_vlan.c Sat Apr 29 08:28:59 2017 (r317585) @@ -1591,6 +1591,16 @@ vlan_capabilities(struct ifvlan *ifv) } /* + * If the parent interface can do LRO and checksum offloading on + * VLANs, then guess it may do LRO on VLANs. False positive here + * cost nothing, while false negative may lead to some confusions. + */ + if (p->if_capabilities & IFCAP_VLAN_HWCSUM) + cap |= p->if_capabilities & IFCAP_LRO; + if (p->if_capenable & IFCAP_VLAN_HWCSUM) + ena |= p->if_capenable & IFCAP_LRO; + + /* * If the parent interface can offload TCP connections over VLANs then * propagate its TOE capability to the VLAN interface. *
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