diff options
| author |   Kejian Yan <yankejian@huawei.com> | 2016-03-22 16:06:29 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-03-22 15:45:58 -0400 |
| commit | da3488bbde50c274a327afa67a141c86c065e0fa (patch) | |
| tree | 9b57558daefe6ef8a235ac71bacf084d9f45d520 /drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | |
| parent | net: hns: fixes a bug of RSS (diff) | |
| download | linux-dev-da3488bbde50c274a327afa67a141c86c065e0fa.tar.xz linux-dev-da3488bbde50c274a327afa67a141c86c065e0fa.zip | |
net: hns: fix the bug about mtu setting
In chip V1, the maximum mtu value is 9600. But in chip V2, it is 9728.
And it is always configurates as 9600 before this patch.
Signed-off-by: Kejian Yan <yankejian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c index 138737dff9f2..50237fbe3090 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c @@ -467,8 +467,10 @@ int hns_mac_set_mtu(struct hns_mac_cb *mac_cb, u32 new_mtu) struct mac_driver *drv = hns_mac_get_drv(mac_cb); u32 buf_size = mac_cb->dsaf_dev->buf_size; u32 new_frm = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; + u32 max_frm = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver) ? + MAC_MAX_MTU : MAC_MAX_MTU_V2; - if ((new_mtu < MAC_MIN_MTU) || (new_frm > MAC_MAX_MTU) || + if ((new_mtu < MAC_MIN_MTU) || (new_frm > max_frm) || (new_frm > HNS_RCB_RING_MAX_BD_PER_PKT * buf_size)) return -EINVAL; |