net: hns3: Fix for packet buffer setting bug
authorYunsheng Lin <linyunsheng@huawei.com>
Wed, 26 Sep 2018 18:28:36 +0000 (19:28 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 13 Nov 2018 19:08:25 +0000 (11:08 -0800)
commit8f6bfa4c99f1eb70bf453b665cb8fc393ef76948
treeca8e3562866b6f43deb29bae68dc62f82304e35b
parente5014ac93db1b1d375326de6050fd999032856ca
net: hns3: Fix for packet buffer setting bug

[ Upstream commit 996ff91840eb6f288826e472685abde78bac20ea ]

The hardware expects a unit of 128 bytes when setting
packet buffer. When calculating the packet buffer size,
hclge_rx_buffer_calc does not round up the size as a unit
of 128 byte, which may casue packet lost problem when stress
testing.

This patch fixes it by rounding up packet size when calculating.

Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c