Date: Thu, 10 Feb 2011 00:01:50 +0000 (UTC) From: Jeff Roberson <jeff@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r218500 - projects/ofed/head/sys/net Message-ID: <201102100001.p1A01oK1002282@svn.freebsd.org>
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Author: jeff Date: Thu Feb 10 00:01:50 2011 New Revision: 218500 URL: http://svn.freebsd.org/changeset/base/218500 Log: - Add some comments for the new functions and code introduced to support non ethernet devices and the IB stack. Modified: projects/ofed/head/sys/net/if_vlan.c Modified: projects/ofed/head/sys/net/if_vlan.c ============================================================================== --- projects/ofed/head/sys/net/if_vlan.c Thu Feb 10 00:01:10 2011 (r218499) +++ projects/ofed/head/sys/net/if_vlan.c Thu Feb 10 00:01:50 2011 (r218500) @@ -595,6 +595,9 @@ restart: VLAN_UNLOCK(); } +/* + * Return the trunk device for a virtual interface. + */ static struct ifnet * vlan_trunkdev(struct ifnet *ifp) { @@ -611,6 +614,9 @@ vlan_trunkdev(struct ifnet *ifp) return (ifp); } +/* + * Return the 16bit vlan tag for this interface. + */ static int vlan_tag(struct ifnet *ifp, uint16_t *tagp) { @@ -623,6 +629,10 @@ vlan_tag(struct ifnet *ifp, uint16_t *ta return (0); } +/* + * Return a driver specific cookie for this interface. Synchronization + * with setcookie must be provided by the driver. + */ static void * vlan_cookie(struct ifnet *ifp) { @@ -634,6 +644,10 @@ vlan_cookie(struct ifnet *ifp) return (ifv->ifv_cookie); } +/* + * Store a cookie in our softc that drivers can use to store driver + * private per-instance data in. + */ static int vlan_setcookie(struct ifnet *ifp, void *cookie) { @@ -646,6 +660,9 @@ vlan_setcookie(struct ifnet *ifp, void * return (0); } +/* + * Return the vlan device present at the specific tag. + */ static struct ifnet * vlan_devat(struct ifnet *ifp, uint16_t tag) { @@ -1226,7 +1243,9 @@ exists: ifv->ifv_trunk = trunk; ifp = ifv->ifv_ifp; /* - * Initialize fields from our parent. + * Initialize fields from our parent. This duplicates some + * work with ether_ifattach() but allows for non-ethernet + * interfaces to also work. */ ifp->if_mtu = p->if_mtu - ifv->ifv_mtufudge; ifp->if_baudrate = p->if_baudrate;
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