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由 Jie Wang 提交于
mainline inclusion from mainline-master commit 0b653a81 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0b653a81a26d ---------------------------------------------------------------------- Currently, driver will send command to firmware to query pfc packet number when user uses dcb tool to get pfc parameters. However, the periodic service task will also periodically query and record MAC statistics, including pfc packet number. As the hardware registers of statistics is cleared after reading, it will cause pfc packet number of MAC statistics are not correct after using dcb tool to get pfc parameters. To fix this problem, when user uses dcb tool to get pfc parameters, driver updates MAC statistics firstly and then get pfc packet number from MAC statistics. Fixes: 64fd2300 ("net: hns3: add support for querying pfc puase packets statistic") Signed-off-by: NJie Wang <wangjie125@huawei.com> Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net> Reviewed-by: NYongxin Li <liyongxin1@huawei.com> Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com> Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
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