[PATCH net-next 3/7] net: hns3: reconstruct function hclge_ets_validate()
From: Guangbin Huang <hidden>
Date: 2021-08-30 06:11:02
Also in:
lkml
Subsystem:
hisilicon network subsystem 3 driver (hns3), hisilicon network subsystem driver, networking drivers, the rest · Maintainers:
Jian Shen, Jijie Shao, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This patch reconstructs function hclge_ets_validate() to reduce the code cycle complexity and make code more concise. Signed-off-by: Guangbin Huang <redacted> --- .../net/ethernet/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 127160416ca6..4a619e5d3f35 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c@@ -104,26 +104,30 @@ 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 < hdev->tc_max; i++) { switch (ets->tc_tsa[i]) {
@@ -148,7 +152,26 @@ 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;
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2.8.1