diff options
| author | Zhenlei Huang <zlei@FreeBSD.org> | 2023-09-06 10:15:14 +0000 |
|---|---|---|
| committer | Zhenlei Huang <zlei@FreeBSD.org> | 2023-09-06 10:15:14 +0000 |
| commit | 49d6743da15fe378782e43776df8b4fd4f84c8d0 (patch) | |
| tree | 3a996b89e6a817afdd479f09ac4e9a37d593d633 /sys/net/if_ethersubr.c | |
| parent | cb1a0aab4f3ca169509ab86a67a4630e72790869 (diff) | |
Diffstat (limited to 'sys/net/if_ethersubr.c')
| -rw-r--r-- | sys/net/if_ethersubr.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/sys/net/if_ethersubr.c b/sys/net/if_ethersubr.c index ab274eeb88bf..2cbe0ea98f27 100644 --- a/sys/net/if_ethersubr.c +++ b/sys/net/if_ethersubr.c @@ -123,6 +123,8 @@ static int ether_resolvemulti(struct ifnet *, struct sockaddr **, struct sockaddr *); static int ether_requestencap(struct ifnet *, struct if_encap_req *); +static inline bool ether_do_pcp(struct ifnet *, struct mbuf *); + #define senderr(e) do { error = (e); goto bad;} while (0) static void @@ -470,11 +472,7 @@ ether_set_pcp(struct mbuf **mp, struct ifnet *ifp, uint8_t pcp) int ether_output_frame(struct ifnet *ifp, struct mbuf *m) { - uint8_t pcp; - - pcp = ifp->if_pcp; - if (pcp != IFNET_PCP_NONE && ifp->if_type != IFT_L2VLAN && - !ether_set_pcp(&m, ifp, pcp)) + if (ether_do_pcp(ifp, m) && !ether_set_pcp(&m, ifp, ifp->if_pcp)) return (0); if (PFIL_HOOKED_OUT(V_link_pfil_head)) @@ -1400,6 +1398,19 @@ SYSCTL_INT(_net_link_vlan, OID_AUTO, mtag_pcp, CTLFLAG_RW | CTLFLAG_VNET, &VNET_NAME(vlan_mtag_pcp), 0, "Retain VLAN PCP information as packets are passed up the stack"); +static inline bool +ether_do_pcp(struct ifnet *ifp, struct mbuf *m) +{ + if (ifp->if_type == IFT_L2VLAN) + return (false); + if (ifp->if_pcp != IFNET_PCP_NONE || (m->m_flags & M_VLANTAG) != 0) + return (true); + if (V_vlan_mtag_pcp && + m_tag_locate(m, MTAG_8021Q, MTAG_8021Q_PCP_OUT, NULL) != NULL) + return (true); + return (false); +} + bool ether_8021q_frame(struct mbuf **mp, struct ifnet *ife, struct ifnet *p, const struct ether_8021q_tag *qtag) |