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From: Huazhong Tan <tanhuazhong@huawei.com>
To: <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<salil.mehta@huawei.com>, <yisen.zhuang@huawei.com>,
	<linuxarm@huawei.com>, Yufeng Mo <moyufeng@huawei.com>,
	Jian Shen <shenjian15@huawei.com>,
	"Weihang Li" <liweihang@hisilicon.com>,
	Huazhong Tan <tanhuazhong@huawei.com>
Subject: [PATCH net-next 10/12] net: hns3: refactor PF/VF RSS hash key configuration
Date: Thu, 6 Jun 2019 16:21:05 +0800	[thread overview]
Message-ID: <1559809267-53805-11-git-send-email-tanhuazhong@huawei.com> (raw)
In-Reply-To: <1559809267-53805-1-git-send-email-tanhuazhong@huawei.com>

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


  parent reply	other threads:[~2019-06-06  8:23 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-06  8:20 [PATCH net-next 00/12] net: hns3: some code optimizations & cleanups & bugfixes Huazhong Tan
2019-06-06  8:20 ` [PATCH net-next 01/12] net: hns3: log detail error info of ROCEE ECC and AXI errors Huazhong Tan
2019-06-06 17:36   ` David Miller
2019-06-07  0:29     ` tanhuazhong
2019-06-06  8:20 ` [PATCH net-next 02/12] net: hns3: fix wrong size of mailbox responding data Huazhong Tan
2019-06-06  8:20 ` [PATCH net-next 03/12] net: hns3: make HW GRO handling compliant with SW GRO Huazhong Tan
2019-06-06  8:20 ` [PATCH net-next 04/12] net: hns3: replace numa_node_id with numa_mem_id for buffer reusing Huazhong Tan
2019-06-06  8:21 ` [PATCH net-next 05/12] net: hns3: refactor hns3_get_new_int_gl function Huazhong Tan
2019-06-06  8:21 ` [PATCH net-next 06/12] net: hns3: trigger VF reset if a VF has an over_8bd_nfe_err Huazhong Tan
2019-06-06  8:21 ` [PATCH net-next 07/12] net: hns3: Delete the redundant user nic codes Huazhong Tan
2019-06-06  8:21 ` [PATCH net-next 08/12] net: hns3: small changes for magic numbers Huazhong Tan
2019-06-06  8:21 ` [PATCH net-next 09/12] net: hns3: use macros instead of " Huazhong Tan
2019-06-06  8:21 ` Huazhong Tan [this message]
2019-06-06  8:21 ` [PATCH net-next 11/12] net: hns3: some modifications to simplify and optimize code Huazhong Tan
2019-06-06  8:21 ` [PATCH net-next 12/12] net: hns3: fix some coding style issues Huazhong Tan

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