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Subject[PATCH net-next 10/12] net: hns3: refactor PF/VF RSS hash key configuration
Date
From: Yufeng Mo <moyufeng@huawei.com>

In order to make it more readable, this patch modifies PF/VF's
RSS hash key configuring function.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 15 +++++++--------
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 15 +++++++--------
2 files changed, 14 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 7239e3c..e1f4ba1 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -3609,28 +3609,27 @@ static int hclge_set_rss_algo_key(struct hclge_dev *hdev,
{
struct hclge_rss_config_cmd *req;
struct hclge_desc desc;
- int key_offset;
+ int key_offset = 0;
+ int key_counts;
int key_size;
int ret;

+ key_counts = HCLGE_RSS_KEY_SIZE;
req = (struct hclge_rss_config_cmd *)desc.data;

- for (key_offset = 0; key_offset < 3; key_offset++) {
+ while (key_counts) {
hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_RSS_GENERIC_CONFIG,
false);

req->hash_config |= (hfunc & HCLGE_RSS_HASH_ALGO_MASK);
req->hash_config |= (key_offset << HCLGE_RSS_HASH_KEY_OFFSET_B);

- if (key_offset == 2)
- key_size =
- HCLGE_RSS_KEY_SIZE - HCLGE_RSS_HASH_KEY_NUM * 2;
- else
- key_size = HCLGE_RSS_HASH_KEY_NUM;
-
+ key_size = min(HCLGE_RSS_HASH_KEY_NUM, key_counts);
memcpy(req->hash_key,
key + key_offset * HCLGE_RSS_HASH_KEY_NUM, key_size);

+ key_counts -= key_size;
+ key_offset++;
ret = hclge_cmd_send(&hdev->hw, &desc, 1);
if (ret) {
dev_err(&hdev->pdev->dev,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 3c2ffc7..8aa7167 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -539,13 +539,15 @@ static int hclgevf_set_rss_algo_key(struct hclgevf_dev *hdev,
{
struct hclgevf_rss_config_cmd *req;
struct hclgevf_desc desc;
- int key_offset;
+ int key_offset = 0;
+ int key_counts;
int key_size;
int ret;

+ key_counts = HCLGEVF_RSS_KEY_SIZE;
req = (struct hclgevf_rss_config_cmd *)desc.data;

- for (key_offset = 0; key_offset < 3; key_offset++) {
+ while (key_counts) {
hclgevf_cmd_setup_basic_desc(&desc,
HCLGEVF_OPC_RSS_GENERIC_CONFIG,
false);
@@ -554,15 +556,12 @@ static int hclgevf_set_rss_algo_key(struct hclgevf_dev *hdev,
req->hash_config |=
(key_offset << HCLGEVF_RSS_HASH_KEY_OFFSET_B);

- if (key_offset == 2)
- key_size =
- HCLGEVF_RSS_KEY_SIZE - HCLGEVF_RSS_HASH_KEY_NUM * 2;
- else
- key_size = HCLGEVF_RSS_HASH_KEY_NUM;
-
+ key_size = min(HCLGEVF_RSS_HASH_KEY_NUM, key_counts);
memcpy(req->hash_key,
key + key_offset * HCLGEVF_RSS_HASH_KEY_NUM, key_size);

+ key_counts -= key_size;
+ key_offset++;
ret = hclgevf_cmd_send(&hdev->hw, &desc, 1);
if (ret) {
dev_err(&hdev->pdev->dev,
--
2.7.4
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