IPOIB_ENCAP_LEN
#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
IPOIB_HARD_LEN = IPOIB_ENCAP_LEN + IPOIB_PSEUDO_LEN,
IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
p->mtu, IPOIB_ENCAP_LEN);
#define IPOIB_CM_RX_RESERVE (ALIGN(IPOIB_HARD_LEN, 16) - IPOIB_ENCAP_LEN)
ipoib_cm_skb_too_long(dev, skb, tx->mtu - IPOIB_ENCAP_LEN);
if (p->mtu <= IPOIB_ENCAP_LEN) {
if (unlikely(skb->len > priv->mcast_mtu + IPOIB_ENCAP_LEN)) {
skb->len, priv->mcast_mtu + IPOIB_ENCAP_LEN);
if (new_mtu < (ETH_MIN_MTU + IPOIB_ENCAP_LEN) ||