copy_in_reverse
copy_in_reverse(ah->av->dest_mac, ah_attr->roce.dmac, ETH_ALEN);
copy_in_reverse(ah->av->dest_ip, grh->dgid.raw, 16);
copy_in_reverse(ah->av->src_ip, grh->sgid_attr->gid.raw, 16);
copy_in_reverse(&ah->av->dest_ip[12], &grh->dgid.raw[12], 4);
copy_in_reverse(&ah->av->src_ip[12], &grh->sgid_attr->gid.raw[12], 4);
copy_in_reverse(req.ip_addr, attr->gid.raw, sizeof(union ib_gid));
copy_in_reverse(req.ip_addr, attr->gid.raw, sizeof(union ib_gid));
copy_in_reverse(req.mac_addr, mac, ETH_ALEN);
copy_in_reverse(req.ah_attr.src_mac, mpc->mac_addr, ETH_ALEN);
copy_in_reverse(req.ah_attr.dest_mac, attr->ah_attr.roce.dmac, ETH_ALEN);
copy_in_reverse(req.ah_attr.src_addr, attr->ah_attr.grh.sgid_attr->gid.raw,
copy_in_reverse(req.ah_attr.dest_addr, attr->ah_attr.grh.dgid.raw,