From: Guangbin Huang huangguangbin2@huawei.com
[ Upstream commit 161ad669e6c23529415bffed5cb3bfa012e46cb4 ]
This patch reconstructs function hclge_ets_validate() to reduce the code cycle complexity and make code more concise.
Signed-off-by: Guangbin Huang huangguangbin2@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Stable-dep-of: 882481b1c55f ("net: hns3: fix wrong bw weight of disabled tc issue") Signed-off-by: Sasha Levin sashal@kernel.org --- .../hisilicon/hns3/hns3pf/hclge_dcb.c | 47 ++++++++++++++----- 1 file changed, 35 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c index 5bab885744fc8..c75794552a1a7 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c @@ -105,26 +105,30 @@ static int hclge_dcb_common_validate(struct hclge_dev *hdev, u8 num_tc, return 0; }
-static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets, - u8 *tc, bool *changed) +static u8 hclge_ets_tc_changed(struct hclge_dev *hdev, struct ieee_ets *ets, + bool *changed) { - bool has_ets_tc = false; - u32 total_ets_bw = 0; - u8 max_tc = 0; - int ret; + u8 max_tc_id = 0; u8 i;
for (i = 0; i < HNAE3_MAX_USER_PRIO; i++) { if (ets->prio_tc[i] != hdev->tm_info.prio_tc[i]) *changed = true;
- if (ets->prio_tc[i] > max_tc) - max_tc = ets->prio_tc[i]; + if (ets->prio_tc[i] > max_tc_id) + max_tc_id = ets->prio_tc[i]; }
- ret = hclge_dcb_common_validate(hdev, max_tc + 1, ets->prio_tc); - if (ret) - return ret; + /* return max tc number, max tc id need to plus 1 */ + return max_tc_id + 1; +} + +static int hclge_ets_sch_mode_validate(struct hclge_dev *hdev, + struct ieee_ets *ets, bool *changed) +{ + bool has_ets_tc = false; + u32 total_ets_bw = 0; + u8 i;
for (i = 0; i < HNAE3_MAX_TC; i++) { switch (ets->tc_tsa[i]) { @@ -158,7 +162,26 @@ static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets, if (has_ets_tc && total_ets_bw != BW_PERCENT) return -EINVAL;
- *tc = max_tc + 1; + return 0; +} + +static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets, + u8 *tc, bool *changed) +{ + u8 tc_num; + int ret; + + tc_num = hclge_ets_tc_changed(hdev, ets, changed); + + ret = hclge_dcb_common_validate(hdev, tc_num, ets->prio_tc); + if (ret) + return ret; + + ret = hclge_ets_sch_mode_validate(hdev, ets, changed); + if (ret) + return ret; + + *tc = tc_num; if (*tc != hdev->tm_info.num_tc) *changed = true;