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net: hns3: fix user configuration loss for ethtool -L

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Ethtool -L option with the combined parameter is for changing the number of
multi-purpose channels of the specified network device. Under the current
scheme, the user configuration information will be lost after the reset or
TC information changed.

This patch fixes this issue. By default, this configuration is set to the
minimum between the number of queues for each enabled TCs and the maximum
number support available in the hardware. When there is a user
configuration, regardless of the reset or TC information change, it should
keep the user's configuration while it is under the hardware limits,
otherwise set to the maximum number support available in the hardware.

Fixes: 09f2af6405 ("net: hns3: add support to modify tqps number")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Huazhong Tan 2019-01-18 16:13:10 +08:00 • committed by David S. Miller
commit 672ad0ede1
4 changed files with 47 additions and 49 deletions
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