This revision was automatically updated to reflect the committed changes.
Closed by commit rS350293: Allow set MTU more than 1500 bytes. (authored by
krion).
Herald added a subscriber: imp.
CHANGED PRIOR TO COMMIT
https://reviews.freebsd.org/D19422?vs=59753&id=60096#toc
REPOSITORY
rS FreeBSD src repository
CHANGES SINCE LAST UPDATE
https://reviews.freebsd.org/D19422?vs=59753&id=60096
CHANGES SINCE LAST ACTION
https://reviews.freebsd.org/D19422/new/
REVISION DETAIL
https://reviews.freebsd.org/D19422
AFFECTED FILES
head/sys/net/if_vxlan.c
EMAIL PREFERENCES
https://reviews.freebsd.org/settings/panel/emailpreferences/
To: aleksandr.fedorov_itglobal.com, bryanv, hrs, #network, rgrimes, krion, jhb
Cc: imp, evgueni.gavrilov_itglobal.com, olevole_olevole.ru, ae,
freebsd-net-list, krzysztof.galazka_intel.com
diff --git a/head/sys/net/if_vxlan.c b/head/sys/net/if_vxlan.c
--- a/head/sys/net/if_vxlan.c
+++ b/head/sys/net/if_vxlan.c
@@ -84,6 +84,15 @@
int vxlsomc_users;
};
+/*
+ * The maximum MTU of encapsulated ethernet frame within IPv4/UDP packet.
+ */
+#define VXLAN_MAX_MTU (IP_MAXPACKET - \
+ 60 /* Maximum IPv4 header len */ - \
+ sizeof(struct udphdr) - \
+ sizeof(struct vxlan_header) - \
+ ETHER_HDR_LEN - ETHER_CRC_LEN - ETHER_VLAN_ENCAP_LEN)
+
#define VXLAN_SO_MC_MAX_GROUPS 32
#define VXLAN_SO_VNI_HASH_SHIFT 6
@@ -2247,10 +2256,11 @@
ifr = (struct ifreq *) data;
ifd = (struct ifdrv *) data;
+ error = 0;
+
switch (cmd) {
case SIOCADDMULTI:
case SIOCDELMULTI:
- error = 0;
break;
case SIOCGDRVSPEC:
@@ -2267,6 +2277,13 @@
error = ifmedia_ioctl(ifp, ifr, &sc->vxl_media, cmd);
break;
+ case SIOCSIFMTU:
+ if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > VXLAN_MAX_MTU)
+ error = EINVAL;
+ else
+ ifp->if_mtu = ifr->ifr_mtu;
+ break;
+
default:
error = ether_ioctl(ifp, cmd, data);
break;
@@ -2747,8 +2764,8 @@
ifp->if_ioctl = vxlan_ioctl;
ifp->if_transmit = vxlan_transmit;
ifp->if_qflush = vxlan_qflush;
- ifp->if_capabilities |= IFCAP_LINKSTATE;
- ifp->if_capenable |= IFCAP_LINKSTATE;
+ ifp->if_capabilities |= IFCAP_LINKSTATE | IFCAP_JUMBO_MTU;
+ ifp->if_capenable |= IFCAP_LINKSTATE | IFCAP_JUMBO_MTU;
ifmedia_init(&sc->vxl_media, 0, vxlan_media_change, vxlan_media_status);
ifmedia_add(&sc->vxl_media, IFM_ETHER | IFM_AUTO, 0, NULL);
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