net: hns3: reduce resources use in kdump kernel
authorYonglong Liu <liuyonglong@huawei.com>
Thu, 4 Apr 2019 08:17:49 +0000 (16:17 +0800)
committerDavid S. Miller <davem@davemloft.net>
Thu, 4 Apr 2019 17:20:38 +0000 (10:20 -0700)
commit962e31bdfce9dfe50af66ffe3b9014f227ffcf3b
tree167c1196cc4d07a901849e5a4c6510a268afc964
parent95dbab9f3606e9f3724fc0e38298830b09a57559
net: hns3: reduce resources use in kdump kernel

When the kdump kernel started, the HNS3 driver fail to register:
[14.753340] hns3 0000:7d:00.0: Alloc umv space failed, want 512, get 0
[14.795034] hns3 0000:7d:00.0: add uc mac address fail, ret =-22.

By default, the HNS3 driver will use about 512M memory, but
usually the reserved memory of kdump kernel is 576M, so the HNS3
driver fail to register. This patch reduces the memory use in
kdump kernel to about 16M.

And when the kdump kernel starts, we must clear ucast mac address
first to avoid add fail.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c