d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

vlan(4): Add support for allocating TLS receive tags.

Browse Source 
The TLS receive tags are allocated directly from the receiving interface,
because mbufs are flowing in the opposite direction and then route change
checks are not useful, because they only work for outgoing traffic.

Differential revision:	https://reviews.freebsd.org/D32356
Sponsored by:	NVIDIA Networking
This commit is contained in:
Hans Petter Selasky 2022-05-25 12:39:56 +02:00
parent 1967e31379
commit 892eded5b8
1 changed files with 32 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
sys/net/if_vlan.c
View File

@ -2204,8 +2204,12 @@ vlan_snd_tag_alloc(struct ifnet *ifp,
struct vlan_snd_tag *vst;
struct ifvlan *ifv;
struct ifnet *parent;
struct m_snd_tag *mst;
int error;
NET_EPOCH_ENTER(et);
ifv = ifp->if_softc;
switch (params->hdr.type) {
#ifdef RATELIMIT
case IF_SND_TAG_TYPE_UNLIMITED:
@ -2219,6 +2223,12 @@ vlan_snd_tag_alloc(struct ifnet *ifp,
case IF_SND_TAG_TYPE_TLS:
sw = &vlan_snd_tag_tls_sw;
break;
case IF_SND_TAG_TYPE_TLS_RX:
sw = NULL;
if (params->tls_rx.vlan_id != 0)
goto failure;
params->tls_rx.vlan_id = ifv->ifv_vid;
break;
#ifdef RATELIMIT
case IF_SND_TAG_TYPE_TLS_RATE_LIMIT:
sw = &vlan_snd_tag_tls_rl_sw;
@ -2226,39 +2236,46 @@ vlan_snd_tag_alloc(struct ifnet *ifp,
#endif
#endif
default:
return (EOPNOTSUPP);
goto failure;
}
NET_EPOCH_ENTER(et);
ifv = ifp->if_softc;
if (ifv->ifv_trunk != NULL)
parent = PARENT(ifv);
else
parent = NULL;
if (parent == NULL) {
NET_EPOCH_EXIT(et);
return (EOPNOTSUPP);
}
if (parent == NULL)
goto failure;
if_ref(parent);
NET_EPOCH_EXIT(et);
vst = malloc(sizeof(*vst), M_VLAN, M_NOWAIT);
if (vst == NULL) {
if_rele(parent);
return (ENOMEM);
}
if (sw != NULL) {
vst = malloc(sizeof(*vst), M_VLAN, M_NOWAIT);
if (vst == NULL) {
if_rele(parent);
return (ENOMEM);
}
} else
vst = NULL;
error = m_snd_tag_alloc(parent, params, &vst->tag);
error = m_snd_tag_alloc(parent, params, &mst);
if_rele(parent);
if (error) {
free(vst, M_VLAN);
return (error);
}
m_snd_tag_init(&vst->com, ifp, sw);
if (sw != NULL) {
m_snd_tag_init(&vst->com, ifp, sw);
vst->tag = mst;
*ppmt = &vst->com;
} else
*ppmt = mst;
*ppmt = &vst->com;
return (0);
failure:
NET_EPOCH_EXIT(et);
return (EOPNOTSUPP);
}
static struct m_snd_tag *