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net: hns3: add some error checking in hclge_tm module

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[ Upstream commit 04f25edb48 ]

When hdev->tx_sch_mode is HCLGE_FLAG_VNET_BASE_SCH_MODE, the
hclge_tm_schd_mode_vnet_base_cfg calls hclge_tm_pri_schd_mode_cfg
with vport->vport_id as pri_id, which is used as index for
hdev->tm_info.tc_info, it will cause out of bound access issue
if vport_id is equal to or larger than HNAE3_MAX_TC.

Also hardware only support maximum speed of HCLGE_ETHER_MAX_RATE.

So this patch adds two checks for above cases.

Fixes: 848440544b ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Signed-off-by: Yunsheng Lin <linyunsheng@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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yunsheng Lin
2019-06-28 19:50:10 +08:00
committed by Greg Kroah-Hartman
parent bf55af0a27
commit 18f05a6fc4
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
View File

@@ -57,7 +57,8 @@ static int hclge_shaper_para_calc(u32 ir, u8 shaper_level,
u32 tick;
/* Calc tick */
if (shaper_level >= HCLGE_SHAPER_LVL_CNT)
if (shaper_level >= HCLGE_SHAPER_LVL_CNT ||
ir > HCLGE_ETHER_MAX_RATE)
return -EINVAL;
tick = tick_array[shaper_level];
@@ -893,6 +894,9 @@ static int hclge_tm_schd_mode_vnet_base_cfg(struct hclge_vport *vport)
int ret;
u8 i;
if (vport->vport_id >= HNAE3_MAX_TC)
return -EINVAL;
ret = hclge_tm_pri_schd_mode_cfg(hdev, vport->vport_id);
if (ret)
return ret;