ipvlan: disable l2e local xmit

euler inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4IHL1


CVE: NA

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Ipvlan l2e mode will cache skbuff for local xmit in
ipvlan_xmit_mode_l2e. But when tso/gso is disabled,
this would result in performance loss.

So we should stop caching the skbuff when tso/gso is
disabled.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Keefe Liu <liuqifa@huawei.com>
Reviewed-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Yuehaibing <yuehaibing@huawei.com>
Reviewed-by: Wenan Mao <maowenan@huawei.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Reviewed-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>