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cxgbe/tom: Put the ifnet or VLAN's PCP value in the 802.1Q tag of frames

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generated by the TOE.  Works with vid 0 (no VLAN, just priority) too.

MFC after:	1 week
Sponsored by:	Chelsio Communications
This commit is contained in:
np 2018-08-17 19:22:46 +00:00
parent a56bea78dd
commit de3a576222
4 changed files with 26 additions and 20 deletions
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6
sys/dev/cxgbe/tom/t4_connect.c
View File

@ -326,7 +326,7 @@ t4_connect(struct toedev *tod, struct socket *so, struct rtentry *rt,
struct tcpcb *tp = intotcpcb(inp);
int reason;
struct offload_settings settings;
uint16_t vid = 0xffff;
uint16_t vid = 0xfff, pcp = 0;
INP_WLOCK_ASSERT(inp);
KASSERT(nam->sa_family == AF_INET || nam->sa_family == AF_INET6,
@ -339,13 +339,15 @@ t4_connect(struct toedev *tod, struct socket *so, struct rtentry *rt,
vi = ifp->if_softc;
VLAN_TAG(rt_ifp, &vid);
VLAN_PCP(rt_ifp, &pcp);
} else if (rt_ifp->if_type == IFT_IEEE8023ADLAG)
DONT_OFFLOAD_ACTIVE_OPEN(ENOSYS); /* XXX: implement lagg+TOE */
else
DONT_OFFLOAD_ACTIVE_OPEN(ENOTSUP);
rw_rlock(&sc->policy_lock);
settings = *lookup_offload_policy(sc, OPEN_TYPE_ACTIVE, NULL, vid, inp);
settings = *lookup_offload_policy(sc, OPEN_TYPE_ACTIVE, NULL,
EVL_MAKETAG(vid, pcp, 0), inp);
rw_runlock(&sc->policy_lock);
if (!settings.offload)
DONT_OFFLOAD_ACTIVE_OPEN(EPERM);

9
sys/dev/cxgbe/tom/t4_listen.c
View File

@ -521,8 +521,8 @@ t4_listen_start(struct toedev *tod, struct tcpcb *tp)
INP_WLOCK_ASSERT(inp);
rw_rlock(&sc->policy_lock);
settings = *lookup_offload_policy(sc, OPEN_TYPE_LISTEN, NULL, 0xffff,
inp);
settings = *lookup_offload_policy(sc, OPEN_TYPE_LISTEN, NULL,
EVL_MAKETAG(0xfff, 0, 0), inp);
rw_runlock(&sc->policy_lock);
if (!settings.offload)
return (0);
@ -1305,7 +1305,7 @@ found:
* XXX: lagg support, lagg + vlan support.
*/
vid = EVL_VLANOFTAG(be16toh(cpl->vlan));
if (vid != 0xfff) {
if (vid != 0xfff && vid != 0) {
ifp = VLAN_DEVAT(hw_ifp, vid);
if (ifp == NULL)
REJECT_PASS_ACCEPT();
@ -1396,7 +1396,8 @@ found:
}
so = inp->inp_socket;
rw_rlock(&sc->policy_lock);
settings = *lookup_offload_policy(sc, OPEN_TYPE_PASSIVE, m, 0xffff, inp);
settings = *lookup_offload_policy(sc, OPEN_TYPE_PASSIVE, m,
EVL_MAKETAG(0xfff, 0, 0), inp);
rw_runlock(&sc->policy_lock);
if (!settings.offload) {
INP_WUNLOCK(inp);

4
sys/dev/cxgbe/tom/t4_tom.c
View File

@ -649,7 +649,7 @@ select_ntuple(struct vi_info *vi, struct l2t_entry *e)
* Initialize each of the fields which we care about which are present
* in the Compressed Filter Tuple.
*/
if (tp->vlan_shift >= 0 && e->vlan != CPL_L2T_VLAN_NONE)
if (tp->vlan_shift >= 0 && EVL_VLANOFTAG(e->vlan) != CPL_L2T_VLAN_NONE)
ntuple |= (uint64_t)(F_FT_VLAN_VLD | e->vlan) << tp->vlan_shift;
if (tp->port_shift >= 0)
@ -1130,7 +1130,7 @@ prepare_pkt(int open_type, uint16_t vtag, struct inpcb *inp, int *pktlen,
ipv6 = inp->inp_vflag & INP_IPV6;
len = 0;
if (vtag == 0xffff) {
if (EVL_VLANOFTAG(vtag) == 0xfff) {
struct ether_header *eh = (void *)pkt;
if (ipv6)

27
sys/dev/cxgbe/tom/t4_tom_l2t.c
View File

@ -236,7 +236,7 @@ resolve_entry(struct adapter *sc, struct l2t_entry *e)
struct sockaddr_in6 sin6 = {0};
struct sockaddr *sa;
uint8_t dmac[ETHER_HDR_LEN];
uint16_t vtag = VLAN_NONE;
uint16_t vtag;
int rc;
if (e->ipv6 == 0) {
@ -251,6 +251,7 @@ resolve_entry(struct adapter *sc, struct l2t_entry *e)
sa = (void *)&sin6;
}
vtag = EVL_MAKETAG(VLAN_NONE, 0, 0);
rc = toe_l2_resolve(tod, e->ifp, sa, dmac, &vtag);
if (rc == EWOULDBLOCK)
return (rc);
@ -355,20 +356,27 @@ t4_l2t_get(struct port_info *pi, struct ifnet *ifp, struct sockaddr *sa)
struct adapter *sc = pi->adapter;
struct l2t_data *d = sc->l2t;
u_int hash, smt_idx = pi->port_id;
uint16_t vid, pcp, vtag;
KASSERT(sa->sa_family == AF_INET || sa->sa_family == AF_INET6,
("%s: sa %p has unexpected sa_family %d", __func__, sa,
sa->sa_family));
#ifndef VLAN_TAG
if (ifp->if_type == IFT_L2VLAN)
return (NULL);
#endif
vid = VLAN_NONE;
pcp = 0;
if (ifp->if_type == IFT_L2VLAN) {
VLAN_TAG(ifp, &vid);
VLAN_PCP(ifp, &pcp);
} else if (ifp->if_pcp != IFNET_PCP_NONE) {
vid = 0;
pcp = ifp->if_pcp;
}
vtag = EVL_MAKETAG(vid, pcp, 0);
hash = l2_hash(d, sa, ifp->if_index);
rw_wlock(&d->lock);
for (e = d->l2tab[hash].first; e; e = e->next) {
if (l2_cmp(sa, e) == 0 && e->ifp == ifp &&
if (l2_cmp(sa, e) == 0 && e->ifp == ifp && e->vlan == vtag &&
e->smt_idx == smt_idx) {
l2t_hold(d, e);
goto done;
@ -391,12 +399,7 @@ t4_l2t_get(struct port_info *pi, struct ifnet *ifp, struct sockaddr *sa)
e->wrq = &sc->sge.ctrlq[pi->port_id];
e->iqid = sc->sge.ofld_rxq[pi->vi[0].first_ofld_rxq].iq.abs_id;
atomic_store_rel_int(&e->refcnt, 1);
#ifdef VLAN_TAG
if (ifp->if_type == IFT_L2VLAN)
VLAN_TAG(ifp, &e->vlan);
else
e->vlan = VLAN_NONE;
#endif
e->vlan = vtag;
mtx_unlock(&e->lock);
}
done: