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net: hns3: Support two vlan header when setting mtu

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This patch adds supports for two vlan header when setting mtu.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yunsheng Lin 2018-11-18 03:19:10 +00:00 committed by David S. Miller
parent d7b4a2f232
commit a0b4371751
3 changed files with 5 additions and 4 deletions
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5
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
View File

@ -3609,8 +3609,9 @@ static int hns3_client_init(struct hnae3_handle *handle)
hns3_dcbnl_setup(handle);
/* MTU range: (ETH_MIN_MTU(kernel default) - 9706) */
netdev->max_mtu = HNS3_MAX_MTU - (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
/* MTU range: (ETH_MIN_MTU(kernel default) - 9702) */
netdev->max_mtu =
HNS3_MAX_MTU - (ETH_HLEN + ETH_FCS_LEN + 2 * VLAN_HLEN);
set_bit(HNS3_NIC_STATE_INITED, &priv->state);

2
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -6364,7 +6364,7 @@ static int hclge_set_mac_mtu(struct hclge_dev *hdev, int new_mtu)
int max_frm_size;
int ret;
max_frm_size = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
max_frm_size = new_mtu + ETH_HLEN + ETH_FCS_LEN + 2 * VLAN_HLEN;
if (max_frm_size < HCLGE_MAC_MIN_FRAME ||
max_frm_size > HCLGE_MAC_MAX_FRAME)

2
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
View File

@ -120,7 +120,7 @@ enum HLCGE_PORT_TYPE {
#define HCLGE_VECTOR0_IMP_RESET_INT_B 1
#define HCLGE_MAC_DEFAULT_FRAME \
(ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN + ETH_DATA_LEN)
(ETH_HLEN + ETH_FCS_LEN + 2 * VLAN_HLEN + ETH_DATA_LEN)
#define HCLGE_MAC_MIN_FRAME 64
#define HCLGE_MAC_MAX_FRAME 9728