From 624c4728d3dacb8aa984fed6a9d339830d383c5c Mon Sep 17 00:00:00 2001
From: Peiyang Wang <wangpeiyang1@huawei.com>
Date: Mon, 21 Apr 2025 10:42:43 +0800
Subject: [PATCH 01/11] net: hns3: add ieee_setmaxrate and ieee_getmaxrate
 support for pf

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM

----------------------------------------------------------------------

Add support for ieee_setmaxrate and ieee_getmaxrate. The minimum
rate supported by the hardware is 1 Mbit/s.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 drivers/net/ethernet/hisilicon/hns3/hnae3.h   |  4 ++
 .../net/ethernet/hisilicon/hns3/hns3_dcbnl.c  | 24 ++++++++
 .../hisilicon/hns3/hns3pf/hclge_dcb.c         | 58 +++++++++++++++++++
 .../hisilicon/hns3/hns3pf/hclge_dcb.h         |  3 +
 .../ethernet/hisilicon/hns3/hns3pf/hclge_tm.c |  2 +-
 5 files changed, 90 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 7f22240c9055..bccb1ddc099a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -852,6 +852,10 @@ struct hnae3_dcb_ops {
 	int (*ieee_setpfc)(struct hnae3_handle *, struct ieee_pfc *);
 	int (*ieee_setapp)(struct hnae3_handle *h, struct dcb_app *app);
 	int (*ieee_delapp)(struct hnae3_handle *h, struct dcb_app *app);
+	int (*ieee_setmaxrate)(struct hnae3_handle *h,
+			       struct ieee_maxrate *maxrate);
+	int (*ieee_getmaxrate)(struct hnae3_handle *h,
+			       struct ieee_maxrate *maxrate);
 
 	/* DCBX configuration */
 	u8   (*getdcbx)(struct hnae3_handle *);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_dcbnl.c b/drivers/net/ethernet/hisilicon/hns3/hns3_dcbnl.c
index f72dc0cee30e..19fef1d41701 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_dcbnl.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_dcbnl.c
@@ -104,6 +104,28 @@ static u8 hns3_dcbnl_setdcbx(struct net_device *ndev, u8 mode)
 	return 1;
 }
 
+static int hns3_dcbnl_ieee_setmaxrate(struct net_device *netdev,
+				      struct ieee_maxrate *maxrate)
+{
+	struct hnae3_handle *h = hns3_get_handle(netdev);
+
+	if (h->kinfo.dcb_ops->ieee_setmaxrate)
+		return h->kinfo.dcb_ops->ieee_setmaxrate(h, maxrate);
+
+	return -EOPNOTSUPP;
+}
+
+static int hns3_dcbnl_ieee_getmaxrate(struct net_device *netdev,
+				      struct ieee_maxrate *maxrate)
+{
+	struct hnae3_handle *h = hns3_get_handle(netdev);
+
+	if (h->kinfo.dcb_ops->ieee_getmaxrate)
+		return h->kinfo.dcb_ops->ieee_getmaxrate(h, maxrate);
+
+	return -EOPNOTSUPP;
+}
+
 static const struct dcbnl_rtnl_ops hns3_dcbnl_ops = {
 	.ieee_getets	= hns3_dcbnl_ieee_getets,
 	.ieee_setets	= hns3_dcbnl_ieee_setets,
@@ -111,6 +133,8 @@ static const struct dcbnl_rtnl_ops hns3_dcbnl_ops = {
 	.ieee_setpfc	= hns3_dcbnl_ieee_setpfc,
 	.ieee_setapp    = hns3_dcbnl_ieee_setapp,
 	.ieee_delapp    = hns3_dcbnl_ieee_delapp,
+	.ieee_setmaxrate    = hns3_dcbnl_ieee_setmaxrate,
+	.ieee_getmaxrate    = hns3_dcbnl_ieee_getmaxrate,
 	.getdcbx	= hns3_dcbnl_getdcbx,
 	.setdcbx	= hns3_dcbnl_setdcbx,
 };
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index 416bcac3bf70..140db47c2055 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -509,6 +509,62 @@ static u8 hclge_setdcbx(struct hnae3_handle *h, u8 mode)
 	return 0;
 }
 
+static int hclge_ieee_getmaxrate(struct hnae3_handle *h,
+				 struct ieee_maxrate *maxrate)
+{
+	struct hnae3_tc_info *tc_info = &h->kinfo.tc_info;
+
+	memcpy(maxrate, tc_info->max_rate, sizeof(struct ieee_maxrate));
+	return 0;
+}
+
+static int hclge_check_maxrate(struct hclge_dev *hdev,
+			       struct ieee_maxrate *maxrate)
+{
+	u64 max_speed = (u64)hdev->hw.mac.max_speed * TM_RATE_PORT_RATE_SCALE;
+	u8 i;
+
+	for (i = 0; i < HNAE3_MAX_TC; i++) {
+		/* no limit */
+		if (!maxrate->tc_maxrate[i])
+			continue;
+		if (maxrate->tc_maxrate[i] < TM_RATE_PORT_RATE_SCALE ||
+		    maxrate->tc_maxrate[i] > max_speed) {
+			dev_err(&hdev->pdev->dev,
+				"invalid max_rate[%llubps]: the range is [1Mbps, %uMbps]\n",
+				maxrate->tc_maxrate[i] * HCLGE_BYTE_BITS,
+				hdev->hw.mac.max_speed);
+			return -EINVAL;
+		}
+	}
+	return 0;
+}
+
+static int hclge_ieee_setmaxrate(struct hnae3_handle *h,
+				 struct ieee_maxrate *maxrate)
+{
+	struct hnae3_tc_info *tc_info = &h->kinfo.tc_info;
+	struct hclge_vport *vport = hclge_get_vport(h);
+	struct hclge_dev *hdev = vport->back;
+	struct hnae3_tc_info old_tc_info;
+	int ret;
+
+	if (!(hdev->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) || tc_info->mqprio_active)
+		return -EINVAL;
+
+	ret = hclge_check_maxrate(hdev, maxrate);
+	if (ret)
+		return ret;
+
+	old_tc_info = *tc_info;
+	memcpy(tc_info->max_rate, maxrate, sizeof(struct ieee_maxrate));
+	ret = hclge_tm_set_tc_rate_limit(hdev, tc_info);
+	if (ret)
+		*tc_info = old_tc_info;
+
+	return ret;
+}
+
 static int hclge_mqprio_qopt_check_rate(struct hclge_dev *hdev, u64 min_rate,
 					u64 max_rate)
 {
@@ -702,6 +758,8 @@ static const struct hnae3_dcb_ops hns3_dcb_ops = {
 	.getdcbx	= hclge_getdcbx,
 	.setdcbx	= hclge_setdcbx,
 	.setup_tc	= hclge_setup_tc,
+	.ieee_setmaxrate = hclge_ieee_setmaxrate,
+	.ieee_getmaxrate = hclge_ieee_getmaxrate,
 };
 
 void hclge_dcb_ops_set(struct hclge_dev *hdev)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h
index b04702e65689..23e35c643c15 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h
@@ -12,4 +12,7 @@ void hclge_dcb_ops_set(struct hclge_dev *hdev);
 static inline void hclge_dcb_ops_set(struct hclge_dev *hdev) {}
 #endif
 
+#define HCLGE_BYTE_BITS		8ULL
+#define HCLGE_RATE_UNIT_MBPS	1000000ULL /* 1Mbps */
+
 #endif /* __HCLGE_DCB_H__ */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index a8350940fd5e..60a133626037 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -1734,7 +1734,7 @@ int hclge_tm_init_hw(struct hclge_dev *hdev, bool init)
 	if (ret)
 		return ret;
 
-	if (hnae3_dev_roh_supported(hdev))
+	if (hdev->ae_dev->dev_version > HNAE3_DEVICE_VERSION_V2)
 		return hclge_tm_set_tc_rate_limit(hdev, tc_info);
 
 	return 0;
-- 
Gitee


From 992097de26916598a64ef1794fac485e949a3b45 Mon Sep 17 00:00:00 2001
From: Peiyang Wang <wangpeiyang1@huawei.com>
Date: Fri, 25 Apr 2025 11:31:19 +0800
Subject: [PATCH 02/11] net: hns3: merge rss tc configuration

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM

----------------------------------------------------------------------

Merge hclge_comm_get_rss_tc_info() and hclge_comm_get_rss_tc_info()
to a new function hclge_comm_get_rss_tc_info(), so it doesn't need
to define tc arrays every where.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 .../hisilicon/hns3/hns3vf/hclgevf_main.c      | 29 +++++++++----------
 1 file changed, 14 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 3f137cb15847..222c828b9e5d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2256,12 +2256,21 @@ static int hclgevf_config_gro(struct hclgevf_dev *hdev)
 	return ret;
 }
 
+static int hclgevf_init_rss_tc_mode(struct hclgevf_dev *hdev, u16 rss_size)
+{
+	u16 tc_offset[HNAE3_MAX_TC] = {0};
+	u16 tc_valid[HNAE3_MAX_TC] = {0};
+	u16 tc_size[HNAE3_MAX_TC] = {0};
+
+	hclge_comm_get_rss_tc_info(rss_size, hdev->hw_tc_map,
+				   tc_offset, tc_valid, tc_size);
+	return hclge_comm_set_rss_tc_mode(&hdev->hw.hw, tc_offset, tc_valid,
+					  tc_size);
+}
+
 static int hclgevf_rss_init_hw(struct hclgevf_dev *hdev)
 {
 	struct hclge_comm_rss_cfg *rss_cfg = &hdev->rss_cfg;
-	u16 tc_offset[HCLGE_COMM_MAX_TC_NUM];
-	u16 tc_valid[HCLGE_COMM_MAX_TC_NUM];
-	u16 tc_size[HCLGE_COMM_MAX_TC_NUM];
 	int ret;
 
 	if (hdev->ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V2) {
@@ -2281,11 +2290,7 @@ static int hclgevf_rss_init_hw(struct hclgevf_dev *hdev)
 	if (ret)
 		return ret;
 
-	hclge_comm_get_rss_tc_info(rss_cfg->rss_size, hdev->hw_tc_map,
-				   tc_offset, tc_valid, tc_size);
-
-	return hclge_comm_set_rss_tc_mode(&hdev->hw.hw, tc_offset,
-					  tc_valid, tc_size);
+	return hclgevf_init_rss_tc_mode(hdev, rss_cfg->rss_size);
 }
 
 static int hclgevf_init_vlan_config(struct hclgevf_dev *hdev,
@@ -3238,9 +3243,6 @@ static int hclgevf_set_channels(struct hnae3_handle *handle, u32 new_tqps_num,
 {
 	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
 	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
-	u16 tc_offset[HCLGE_COMM_MAX_TC_NUM];
-	u16 tc_valid[HCLGE_COMM_MAX_TC_NUM];
-	u16 tc_size[HCLGE_COMM_MAX_TC_NUM];
 	u16 cur_rss_size = kinfo->rss_size;
 	u16 cur_tqps = kinfo->num_tqps;
 	u32 *rss_indir;
@@ -3249,10 +3251,7 @@ static int hclgevf_set_channels(struct hnae3_handle *handle, u32 new_tqps_num,
 
 	hclgevf_update_rss_size(handle, new_tqps_num);
 
-	hclge_comm_get_rss_tc_info(kinfo->rss_size, hdev->hw_tc_map,
-				   tc_offset, tc_valid, tc_size);
-	ret = hclge_comm_set_rss_tc_mode(&hdev->hw.hw, tc_offset,
-					 tc_valid, tc_size);
+	ret = hclgevf_init_rss_tc_mode(hdev, kinfo->rss_size);
 	if (ret)
 		return ret;
 
-- 
Gitee


From da8a52d2867f7774cccd336db6fd12e77d3500c9 Mon Sep 17 00:00:00 2001
From: Peiyang Wang <wangpeiyang1@huawei.com>
Date: Fri, 25 Apr 2025 11:32:50 +0800
Subject: [PATCH 03/11] net: hns3: add support to query tc map info of VF
 queues

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM

----------------------------------------------------------------------

Modified hclge_tm_get_q_to_tc to support the query of
TC map info of VF queues.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 7 ++++++-
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h | 5 +++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 60a133626037..da3d135a6e25 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -2033,12 +2033,17 @@ int hclge_tm_get_q_to_tc(struct hclge_dev *hdev, u16 q_id, u8 *tc_id)
 #define HCLGE_TM_TC_MASK		0x7
 
 	struct hclge_tqp_tx_queue_tc_cmd *tc;
+	struct hclge_vport *vport;
 	struct hclge_desc desc;
 	int ret;
 
+	vport = container_of(hdev->htqp[q_id].q.handle,
+			     struct hclge_vport, nic);
 	tc = (struct hclge_tqp_tx_queue_tc_cmd *)desc.data;
 	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_TQP_TX_QUEUE_TC, true);
-	tc->queue_id = cpu_to_le16(q_id);
+	tc->queue_id = cpu_to_le16(hdev->htqp[q_id].q.tqp_index);
+	tc->func_id = (u8)vport->vport_id;
+
 	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
 	if (ret) {
 		dev_err(&hdev->pdev->dev,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
index 64b448370f93..b3c81050394e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
@@ -65,9 +65,10 @@ struct hclge_nq_to_qs_link_cmd {
 
 struct hclge_tqp_tx_queue_tc_cmd {
 	__le16 queue_id;
-	__le16 rsvd;
+	u8 func_id;
+	u8 rsvd1;
 	u8 tc_id;
-	u8 rev[3];
+	u8 rsvd2[3];
 };
 
 struct hclge_pg_weight_cmd {
-- 
Gitee


From baacfc8623dcefd15b5619213d183f2322afca61 Mon Sep 17 00:00:00 2001
From: Peiyang Wang <wangpeiyang1@huawei.com>
Date: Tue, 6 May 2025 10:54:48 +0800
Subject: [PATCH 04/11] net: hns3: using the num_tqps in the vf driver to apply
 for resources

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM

----------------------------------------------------------------------

using the num_tqps in the vf driver to apply for resources instead of
private info

Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 222c828b9e5d..7696b1963186 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -370,12 +370,12 @@ static int hclgevf_knic_setup(struct hclgevf_dev *hdev)
 	new_tqps = kinfo->rss_size * num_tc;
 	kinfo->num_tqps = min(new_tqps, hdev->num_tqps);
 
-	kinfo->tqp = devm_kcalloc(&hdev->pdev->dev, kinfo->num_tqps,
+	kinfo->tqp = devm_kcalloc(&hdev->pdev->dev, hdev->num_tqps,
 				  sizeof(struct hnae3_queue *), GFP_KERNEL);
 	if (!kinfo->tqp)
 		return -ENOMEM;
 
-	for (i = 0; i < kinfo->num_tqps; i++) {
+	for (i = 0; i < hdev->num_tqps; i++) {
 		hdev->htqp[i].q.handle = &hdev->nic;
 		hdev->htqp[i].q.tqp_index = i;
 		kinfo->tqp[i] = &hdev->htqp[i].q;
-- 
Gitee


From d966e2efa65f53859f75358ec21e94e1b9ad5c27 Mon Sep 17 00:00:00 2001
From: Peiyang Wang <wangpeiyang1@huawei.com>
Date: Fri, 9 May 2025 14:50:34 +0800
Subject: [PATCH 05/11] net: hns3: using the num_tqps to check whether
 tqp_index is out of range when vf get ring info from mbx

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM

----------------------------------------------------------------------

using the num_tqps to check whether tqp_index is out of range, instead of
rss_size.

Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index 7b3709f480b3..fdba02a46968 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -193,10 +193,10 @@ static int hclge_get_ring_chain_from_mbx(
 		return -EINVAL;
 
 	for (i = 0; i < ring_num; i++) {
-		if (req->msg.param[i].tqp_index >= vport->nic.kinfo.rss_size) {
+		if (req->msg.param[i].tqp_index >= vport->nic.kinfo.num_tqps) {
 			dev_err(&hdev->pdev->dev, "tqp index(%u) is out of range(0-%u)\n",
 				req->msg.param[i].tqp_index,
-				vport->nic.kinfo.rss_size - 1U);
+				vport->nic.kinfo.num_tqps - 1U);
 			return -EINVAL;
 		}
 	}
-- 
Gitee


From e978f8c944e321224e0d62bb8f556a40a70c9b62 Mon Sep 17 00:00:00 2001
From: Jijie Shao <shaojijie@huawei.com>
Date: Thu, 3 Jul 2025 16:00:27 +0800
Subject: [PATCH 06/11] net: hns3: Return error code when function fails.

maillist inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=03ca7c8c42be913529eb9f188278114430c6abbd

----------------------------------------------------------------------

Currently, in hclge_mii_ioctl(), the operation to
read the PHY register (SIOCGMIIREG) always returns 0.

This patch changes the return type of hclge_read_phy_reg(),
returning an error code when the function fails.

Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 3 +--
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c | 9 ++++++---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h | 2 +-
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 971340509b0d..a5029f957b09 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -10136,8 +10136,7 @@ static int hclge_mii_ioctl(struct hclge_dev *hdev, struct ifreq *ifr, int cmd)
 		/* this command reads phy id and register at the same time */
 		fallthrough;
 	case SIOCGMIIREG:
-		data->val_out = hclge_read_phy_reg(hdev, data->reg_num);
-		return 0;
+		return hclge_read_phy_reg(hdev, data->reg_num, &data->val_out);
 
 	case SIOCSMIIREG:
 		return hclge_write_phy_reg(hdev, data->reg_num, data->val_in);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c
index e8b263a1f66f..17aa7fcd0706 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c
@@ -274,7 +274,7 @@ void hclge_mac_stop_phy(struct hclge_dev *hdev)
 	phy_stop(phydev);
 }
 
-u16 hclge_read_phy_reg(struct hclge_dev *hdev, u16 reg_addr)
+int hclge_read_phy_reg(struct hclge_dev *hdev, u16 reg_addr, u16 *val)
 {
 	struct hclge_phy_reg_cmd *req;
 	struct hclge_desc desc;
@@ -286,11 +286,14 @@ u16 hclge_read_phy_reg(struct hclge_dev *hdev, u16 reg_addr)
 	req->reg_addr = cpu_to_le16(reg_addr);
 
 	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
-	if (ret)
+	if (ret) {
 		dev_err(&hdev->pdev->dev,
 			"failed to read phy reg, ret = %d.\n", ret);
+		return ret;
+	}
 
-	return le16_to_cpu(req->reg_val);
+	*val = le16_to_cpu(req->reg_val);
+	return 0;
 }
 
 int hclge_write_phy_reg(struct hclge_dev *hdev, u16 reg_addr, u16 val)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h
index 4200d0b6d931..21d434c82475 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h
@@ -13,7 +13,7 @@ int hclge_mac_connect_phy(struct hnae3_handle *handle);
 void hclge_mac_disconnect_phy(struct hnae3_handle *handle);
 void hclge_mac_start_phy(struct hclge_dev *hdev);
 void hclge_mac_stop_phy(struct hclge_dev *hdev);
-u16 hclge_read_phy_reg(struct hclge_dev *hdev, u16 reg_addr);
+int hclge_read_phy_reg(struct hclge_dev *hdev, u16 reg_addr, u16 *val);
 int hclge_write_phy_reg(struct hclge_dev *hdev, u16 reg_addr, u16 val);
 
 #endif
-- 
Gitee


From dab8b82665e98aa2a29d3a5654633c3d08893991 Mon Sep 17 00:00:00 2001
From: Shuaisong Yang <yangshuaisong@h-partners.com>
Date: Wed, 9 Jul 2025 11:01:09 +0800
Subject: [PATCH 07/11] net: hns3: use user configure after hardware reset when
 using kernel PHY.

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM

----------------------------------------------------------------------

When a reset occurring, it's supposed to recover user's configuration.
Consider the case that reset was happened consecutively. During the first
reset, the port info is configured with a temporary value cause the PHY
is reset and looking for best link config. Second reset start and use
pervious configuration which is not the user's. Therefore, in this case,
the network port may not link up.

In this patch, saving user configure to req_xxx variable after successful
configuration when using kernel PHY or firmware PHY. And then, use the
req_xxx variable after hardware reset. Compared to the previous commit
"net: hns3: using user configure after hardware reset", it adds handling
for kernel PHY and FIBER.

Signed-off-by: Shuaisong Yang <yangshuaisong@h-partners.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 .../ethernet/hisilicon/hns3/hns3_ethtool.c    | 26 ++++-----
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 56 ++++++++++++++-----
 2 files changed, 53 insertions(+), 29 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index cea9259f192f..bb796114c264 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -898,12 +898,11 @@ static int hns3_get_link_ksettings(struct net_device *netdev,
 }
 
 static int hns3_check_ksettings_param(const struct net_device *netdev,
-				      const struct ethtool_link_ksettings *cmd)
+				      const struct ethtool_link_ksettings *cmd,
+				      u8 media_type)
 {
 	struct hnae3_handle *handle = hns3_get_handle(netdev);
 	const struct hnae3_ae_ops *ops = hns3_get_ops(handle);
-	u8 module_type = HNAE3_MODULE_TYPE_UNKNOWN;
-	u8 media_type = HNAE3_MEDIA_TYPE_UNKNOWN;
 	u32 lane_num;
 	u8 autoneg;
 	u32 speed;
@@ -923,9 +922,6 @@ static int hns3_check_ksettings_param(const struct net_device *netdev,
 			return 0;
 	}
 
-	if (ops->get_media_type)
-		ops->get_media_type(handle, &media_type, &module_type);
-
 	if (cmd->base.duplex == DUPLEX_HALF &&
 	    media_type != HNAE3_MEDIA_TYPE_COPPER) {
 		netdev_err(netdev,
@@ -950,6 +946,8 @@ static int hns3_set_link_ksettings(struct net_device *netdev,
 	struct hnae3_handle *handle = hns3_get_handle(netdev);
 	struct hnae3_ae_dev *ae_dev = hns3_get_ae_dev(handle);
 	const struct hnae3_ae_ops *ops = hns3_get_ops(handle);
+	u8 module_type = HNAE3_MODULE_TYPE_UNKNOWN;
+	u8 media_type = HNAE3_MEDIA_TYPE_UNKNOWN;
 	int ret;
 
 	/* Chip don't support this mode. */
@@ -965,22 +963,20 @@ static int hns3_set_link_ksettings(struct net_device *netdev,
 		  cmd->base.autoneg, cmd->base.speed, cmd->base.duplex,
 		  cmd->lanes);
 
-	/* Only support ksettings_set for netdev with phy attached for now */
-	if (netdev->phydev) {
-		if (cmd->base.speed == SPEED_1000 &&
-		    cmd->base.autoneg == AUTONEG_DISABLE)
-			return -EINVAL;
+	if (!ops->get_media_type)
+		return -EOPNOTSUPP;
+	ops->get_media_type(handle, &media_type, &module_type);
 
-		return phy_ethtool_ksettings_set(netdev->phydev, cmd);
-	} else if (test_bit(HNAE3_DEV_SUPPORT_PHY_IMP_B, ae_dev->caps) &&
-		   ops->set_phy_link_ksettings) {
+	if (media_type == HNAE3_MEDIA_TYPE_COPPER) {
+		if (!ops->set_phy_link_ksettings)
+			return -EOPNOTSUPP;
 		return ops->set_phy_link_ksettings(handle, cmd);
 	}
 
 	if (ae_dev->dev_version < HNAE3_DEVICE_VERSION_V2)
 		return -EOPNOTSUPP;
 
-	ret = hns3_check_ksettings_param(netdev, cmd);
+	ret = hns3_check_ksettings_param(netdev, cmd, media_type);
 	if (ret)
 		return ret;
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index a5029f957b09..ab48f1a4f850 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1607,8 +1607,11 @@ static int hclge_configure(struct hclge_dev *hdev)
 		return ret;
 	}
 	hdev->hw.mac.req_speed = hdev->hw.mac.speed;
-	hdev->hw.mac.req_autoneg = AUTONEG_ENABLE;
 	hdev->hw.mac.req_duplex = DUPLEX_FULL;
+	if (hdev->hw.mac.media_type == HNAE3_MEDIA_TYPE_COPPER)
+		hdev->hw.mac.req_autoneg = AUTONEG_ENABLE;
+	else
+		hdev->hw.mac.req_autoneg = AUTONEG_DISABLE;
 
 	hclge_parse_link_mode(hdev, cfg.speed_ability);
 
@@ -2739,6 +2742,7 @@ static int hclge_set_autoneg(struct hnae3_handle *handle, bool enable)
 {
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_dev *hdev = vport->back;
+	int ret;
 
 	if (!hdev->hw.mac.support_autoneg) {
 		if (enable) {
@@ -2750,7 +2754,10 @@ static int hclge_set_autoneg(struct hnae3_handle *handle, bool enable)
 		}
 	}
 
-	return hclge_set_autoneg_en(hdev, enable);
+	ret = hclge_set_autoneg_en(hdev, enable);
+	if (!ret)
+		hdev->hw.mac.req_autoneg = enable;
+	return ret;
 }
 
 static int hclge_get_autoneg(struct hnae3_handle *handle)
@@ -3029,7 +3036,7 @@ static int hclge_mac_init(struct hclge_dev *hdev)
 		hdev->hw.mac.duplex = HCLGE_MAC_FULL;
 
 	if (hdev->hw.mac.support_autoneg) {
-		ret = hclge_set_autoneg_en(hdev, hdev->hw.mac.autoneg);
+		ret = hclge_set_autoneg_en(hdev, hdev->hw.mac.req_autoneg);
 		if (ret)
 			return ret;
 	}
@@ -3428,8 +3435,8 @@ static int hclge_get_phy_link_ksettings(struct hnae3_handle *handle,
 }
 
 static int
-hclge_set_phy_link_ksettings(struct hnae3_handle *handle,
-			     const struct ethtool_link_ksettings *cmd)
+hclge_ethtool_ksettings_set(struct hnae3_handle *handle,
+			    const struct ethtool_link_ksettings *cmd)
 {
 	struct hclge_desc desc[HCLGE_PHY_LINK_SETTING_BD_NUM];
 	struct hclge_vport *vport = hclge_get_vport(handle);
@@ -3439,12 +3446,6 @@ hclge_set_phy_link_ksettings(struct hnae3_handle *handle,
 	u32 advertising;
 	int ret;
 
-	if (cmd->base.autoneg == AUTONEG_DISABLE &&
-	    ((cmd->base.speed != SPEED_100 && cmd->base.speed != SPEED_10) ||
-	     (cmd->base.duplex != DUPLEX_HALF &&
-	      cmd->base.duplex != DUPLEX_FULL)))
-		return -EINVAL;
-
 	hclge_cmd_setup_basic_desc(&desc[0], HCLGE_OPC_PHY_LINK_KSETTING,
 				   false);
 	desc[0].flag |= cpu_to_le16(HCLGE_COMM_CMD_FLAG_NEXT);
@@ -3464,6 +3465,32 @@ hclge_set_phy_link_ksettings(struct hnae3_handle *handle,
 	req1->master_slave_cfg = cmd->base.master_slave_cfg;
 
 	ret = hclge_cmd_send(&hdev->hw, desc, HCLGE_PHY_LINK_SETTING_BD_NUM);
+
+	if (!ret)
+		linkmode_copy(hdev->hw.mac.advertising, cmd->link_modes.advertising);
+
+	return ret;
+}
+
+static int
+hclge_set_phy_link_ksettings(struct hnae3_handle *handle,
+			     const struct ethtool_link_ksettings *cmd)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	struct hclge_dev *hdev = vport->back;
+	int ret;
+
+	if (cmd->base.autoneg == AUTONEG_DISABLE &&
+	    ((cmd->base.speed != SPEED_100 && cmd->base.speed != SPEED_10) ||
+	     (cmd->base.duplex != DUPLEX_HALF &&
+	      cmd->base.duplex != DUPLEX_FULL)))
+		return -EINVAL;
+
+	if (hnae3_dev_phy_imp_supported(hdev))
+		ret = hclge_ethtool_ksettings_set(handle, cmd);
+	else
+		ret = phy_ethtool_ksettings_set(handle->netdev->phydev, cmd);
+
 	if (ret) {
 		dev_err(&hdev->pdev->dev,
 			"failed to set phy link ksettings, ret = %d.\n", ret);
@@ -3471,9 +3498,10 @@ hclge_set_phy_link_ksettings(struct hnae3_handle *handle,
 	}
 
 	hdev->hw.mac.req_autoneg = cmd->base.autoneg;
-	hdev->hw.mac.req_speed = cmd->base.speed;
-	hdev->hw.mac.req_duplex = cmd->base.duplex;
-	linkmode_copy(hdev->hw.mac.advertising, cmd->link_modes.advertising);
+	if (cmd->base.speed != SPEED_UNKNOWN)
+		hdev->hw.mac.req_speed = cmd->base.speed;
+	if (cmd->base.duplex != DUPLEX_UNKNOWN)
+		hdev->hw.mac.req_duplex = cmd->base.duplex;
 
 	return 0;
 }
-- 
Gitee


From 984d85d6e42eb9d028b0c0e2c2ac45dee45be02b Mon Sep 17 00:00:00 2001
From: Shuaisong Yang <yangshuaisong@h-partners.com>
Date: Thu, 7 Aug 2025 20:03:20 +0800
Subject: [PATCH 08/11] net: hns3: `req_autoneg` for fiber is initialized to
 `support_autoneg` instead of OFF.

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM

----------------------------------------------------------------------

When handling the issue of copper probabilistic failing to link up after
reset, the parameter in `hclge_set_autoneg_en` was updated from `autoneg`
to `req_autoneg`. And for fiber, `req_autoneg` is initialized to OFF. If
fiber link up with autoneg ON, and the `hclge.ko` module is unloaded and
reloaded, autoneg keeps ON and link up. The next reset will set autoneg
to OFF based on `req_autoneg`, resulting in a failure to link up.

In this patch, `req_autoneg` for fiber is initialized to `support_autoneg`
instead of OFF. Consequently, both the initialization code for `req_autoneg`
and the subsequent configuration setup must be moved after
`hclge_update_port_info`.

Signed-off-by: Shuaisong Yang <yangshuaisong@h-partners.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 63 ++++++++++++++-----
 .../hisilicon/hns3/hns3pf/hclge_main.h        |  3 +-
 2 files changed, 49 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index ab48f1a4f850..1525f3c948cb 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2712,7 +2712,7 @@ static int hclge_cfg_mac_speed_dup_h(struct hnae3_handle *handle, int speed,
 
 	hdev->hw.mac.req_speed = (u32)speed;
 	hdev->hw.mac.req_duplex = duplex;
-
+	hdev->hw.mac.req_lane_num = lane_num;
 	return 0;
 }
 
@@ -3034,21 +3034,6 @@ static int hclge_mac_init(struct hclge_dev *hdev)
 
 	if (!test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
 		hdev->hw.mac.duplex = HCLGE_MAC_FULL;
-
-	if (hdev->hw.mac.support_autoneg) {
-		ret = hclge_set_autoneg_en(hdev, hdev->hw.mac.req_autoneg);
-		if (ret)
-			return ret;
-	}
-
-	if (!hdev->hw.mac.autoneg) {
-		ret = hclge_cfg_mac_speed_dup_hw(hdev, hdev->hw.mac.req_speed,
-						 hdev->hw.mac.req_duplex,
-						 hdev->hw.mac.lane_num);
-		if (ret)
-			return ret;
-	}
-
 	mac->link = 0;
 
 	if (mac->user_fec_mode & BIT(HNAE3_FEC_USER_DEF)) {
@@ -12533,6 +12518,28 @@ static int hclge_set_wol(struct hnae3_handle *handle,
 	return ret;
 }
 
+static int hclge_set_autoneg_speed_dup(struct hclge_dev *hdev)
+{
+	int ret;
+
+	if (hdev->hw.mac.support_autoneg) {
+		ret = hclge_set_autoneg_en(hdev, hdev->hw.mac.req_autoneg);
+		if (ret)
+			return ret;
+	}
+
+	if (!hdev->hw.mac.req_autoneg) {
+		ret = hclge_cfg_mac_speed_dup_hw(hdev, hdev->hw.mac.req_speed,
+						 hdev->hw.mac.req_duplex,
+						 hdev->hw.mac.req_lane_num);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+
 static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 {
 	struct pci_dev *pdev = ae_dev->pdev;
@@ -12694,6 +12701,23 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 	if (ret)
 		goto err_ptp_uninit;
 
+	if (hdev->hw.mac.media_type == HNAE3_MEDIA_TYPE_COPPER)
+		hdev->hw.mac.req_autoneg = AUTONEG_ENABLE;
+	else
+		hdev->hw.mac.req_autoneg = hdev->hw.mac.autoneg;
+
+	/* When lane_num is 0, the firmware will automatically
+	 * select the appropriate lane_num based on the speed.
+	 */
+	hdev->hw.mac.req_lane_num = 0;
+
+	ret = hclge_set_autoneg_speed_dup(hdev);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"failed to set autoneg speed duplex, ret = %d\n", ret);
+		goto err_ptp_uninit;
+	}
+
 	INIT_KFIFO(hdev->mac_tnl_log);
 
 	hclge_dcb_ops_set(hdev);
@@ -13026,6 +13050,13 @@ static int hclge_reset_ae_dev(struct hnae3_ae_dev *ae_dev)
 		return ret;
 	}
 
+	ret = hclge_set_autoneg_speed_dup(hdev);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"failed to set autoneg speed duplex, ret = %d\n", ret);
+		return ret;
+	}
+
 	ret = hclge_tp_port_init(hdev);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to init tp port, ret = %d\n",
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 4f723d7c037d..a4171f59105c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -286,9 +286,10 @@ struct hclge_mac {
 	u8 req_autoneg;
 	u8 duplex;
 	u8 req_duplex;
-	u8 support_autoneg;
+	u8 support_autoneg;	/* for non-copper port */
 	u8 speed_type;	/* 0: sfp speed, 1: active speed */
 	u8 lane_num;
+	u8 req_lane_num;
 	u32 speed;
 	u32 req_speed;
 	u32 max_speed;
-- 
Gitee


From 43fdf2747886cce1416194d1fc76c4f423d217ba Mon Sep 17 00:00:00 2001
From: Hao Lan <lanhao@huawei.com>
Date: Thu, 4 Jul 2024 22:45:48 +0800
Subject: [PATCH 09/11] net: hns3: fixed vf get max channels bug

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM

----------------------------------------------------------------------

Currently, the queried maximum of vf channels is the maximum of channels
supported by each TC. However, the actual maximum of channels is
the maximum of channels supported by the device.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 7696b1963186..7ccf6625b27e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -3176,11 +3176,7 @@ static void hclgevf_uninit_ae_dev(struct hnae3_ae_dev *ae_dev)
 
 static u32 hclgevf_get_max_channels(struct hclgevf_dev *hdev)
 {
-	struct hnae3_handle *nic = &hdev->nic;
-	struct hnae3_knic_private_info *kinfo = &nic->kinfo;
-
-	return min_t(u32, hdev->rss_size_max,
-		     hdev->num_tqps / kinfo->tc_info.num_tc);
+	return min_t(u32, hdev->rss_size_max, hdev->num_tqps);
 }
 
 /**
-- 
Gitee


From b5d7d39a5f536a4a56869d4502208b706e4f2d73 Mon Sep 17 00:00:00 2001
From: Jian Shen <shenjian15@huawei.com>
Date: Fri, 28 Feb 2025 16:15:37 +0800
Subject: [PATCH 10/11] net: hns3: avoid bitwise copy during RX buffer replace
 leg when page pool enabled

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM

----------------------------------------------------------------------

Bitwise copy of members of structures should be totally avoided.
Refactoring of RX replace buffer leg and removing bitwise copy
has improved performance by roughly 2Gbps in 1-core 1-queue
performance benchmark test.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: Hao Chen <chenhao418@huawei.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   | 24 ++++++++++++-------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index c0868305049a..18bd0eaa6f5c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -3652,11 +3652,12 @@ static int hns3_alloc_buffer(struct hns3_enet_ring *ring,
 			     struct hns3_desc_cb *cb)
 {
 	unsigned int order = hns3_page_order(ring);
+	u32 page_offset;
 	struct page *p;
 
 	if (ring->page_pool) {
 		p = page_pool_dev_alloc_frag(ring->page_pool,
-					     &cb->page_offset,
+					     &page_offset,
 					     hns3_buf_size(ring));
 		if (unlikely(!p))
 			return -ENOMEM;
@@ -3666,6 +3667,7 @@ static int hns3_alloc_buffer(struct hns3_enet_ring *ring,
 		cb->dma = page_pool_get_dma_addr(p);
 		cb->type = DESC_TYPE_PP_FRAG;
 		cb->reuse_flag = 0;
+		cb->page_offset = page_offset;
 		return 0;
 	}
 
@@ -3842,10 +3844,10 @@ static int hns3_alloc_ring_buffers(struct hns3_enet_ring *ring)
 static void hns3_replace_buffer(struct hns3_enet_ring *ring, int i,
 				struct hns3_desc_cb *res_cb)
 {
-	if (!ring->page_pool)
+	if (!ring->page_pool) {
 		hns3_unmap_buffer(ring, &ring->desc_cb[i]);
-
-	ring->desc_cb[i] = *res_cb;
+		ring->desc_cb[i] = *res_cb;
+	}
 	ring->desc_cb[i].refill = 1;
 	ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma +
 					 ring->desc_cb[i].page_offset);
@@ -3982,7 +3984,9 @@ static bool hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring,
 
 			hns3_reuse_buffer(ring, ring->next_to_use);
 		} else {
-			ret = hns3_alloc_and_map_buffer(ring, &res_cbs);
+			if (!ring->page_pool)
+				desc_cb = &res_cbs;
+			ret = hns3_alloc_and_map_buffer(ring, desc_cb);
 			if (ret) {
 				hns3_ring_stats_update(ring, sw_err_cnt);
 
@@ -3994,7 +3998,7 @@ static bool hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring,
 				       HNS3_RING_RX_RING_HEAD_REG);
 				return true;
 			}
-			hns3_replace_buffer(ring, ring->next_to_use, &res_cbs);
+			hns3_replace_buffer(ring, ring->next_to_use, desc_cb);
 
 			hns3_ring_stats_update(ring, non_reuse_pg);
 		}
@@ -5848,6 +5852,7 @@ static void hns3_clear_tx_ring(struct hns3_enet_ring *ring)
 
 static int hns3_clear_rx_ring(struct hns3_enet_ring *ring)
 {
+	struct hns3_desc_cb *desc_cb;
 	struct hns3_desc_cb res_cbs;
 	int ret;
 
@@ -5856,8 +5861,11 @@ static int hns3_clear_rx_ring(struct hns3_enet_ring *ring)
 		 * freed in hns3_handle_rx_bd or will be freed by
 		 * stack, so we need to replace the buffer here.
 		 */
+		desc_cb = &ring->desc_cb[ring->next_to_use];
 		if (!ring->desc_cb[ring->next_to_use].reuse_flag) {
-			ret = hns3_alloc_and_map_buffer(ring, &res_cbs);
+			if (!ring->page_pool)
+				desc_cb = &res_cbs;
+			ret = hns3_alloc_and_map_buffer(ring, desc_cb);
 			if (ret) {
 				hns3_ring_stats_update(ring, sw_err_cnt);
 				/* if alloc new buffer fail, exit directly
@@ -5868,7 +5876,7 @@ static int hns3_clear_rx_ring(struct hns3_enet_ring *ring)
 					    ret);
 				return ret;
 			}
-			hns3_replace_buffer(ring, ring->next_to_use, &res_cbs);
+			hns3_replace_buffer(ring, ring->next_to_use, desc_cb);
 		}
 		ring_ptr_move_fw(ring, next_to_use);
 	}
-- 
Gitee


From f47b6eda4605eb98bf4220831c4808ca56bcf89a Mon Sep 17 00:00:00 2001
From: Jijie Shao <shaojijie@huawei.com>
Date: Sat, 30 Aug 2025 10:58:46 +0800
Subject: [PATCH 11/11] net: hns3: fix null pointer in debugfs issue

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/ID39NM

----------------------------------------------------------------------

Currently, when debugfs and reset are executed concurrently,
some resources are released during the reset process,
which may cause debugfs to read null pointers or other anomalies.

Therefore, in this patch, interception protection has been added
to debugfs operations that are sensitive to reset.

Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: Donghua Huang <huangdonghua3@h-partners.com>
---
 .../ethernet/hisilicon/hns3/hns3_debugfs.c    | 67 ++++++++++++++-----
 .../hisilicon/hns3/hns3pf/hclge_debugfs.c     |  6 ++
 2 files changed, 57 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index a8b6cd7d77d1..71a650f8e02e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -383,6 +383,15 @@ static const char * const dim_state_str[] = { "START", "IN_PROG", "APPLY" };
 static const char * const
 dim_tune_stat_str[] = { "ON_TOP", "TIRED", "RIGHT", "LEFT" };
 
+static bool hns3_dbg_is_device_busy(struct hns3_nic_priv *priv)
+{
+	if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
+	    test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
+	    return true;
+
+	return false;
+}
+
 static void hns3_get_coal_info(struct hns3_enet_tqp_vector *tqp_vector,
 			       struct seq_file *s, int i, bool is_tx)
 {
@@ -428,13 +437,16 @@ static void hns3_get_coal_info(struct hns3_enet_tqp_vector *tqp_vector,
 	}
 }
 
-static void hns3_dump_coal_info(struct seq_file *s, bool is_tx)
+static int hns3_dump_coal_info(struct seq_file *s, bool is_tx)
 {
 	struct hnae3_handle *h = hnae3_seq_file_to_handle(s);
 	struct hns3_enet_tqp_vector *tqp_vector;
 	struct hns3_nic_priv *priv = h->priv;
 	unsigned int i;
 
+	if (hns3_dbg_is_device_busy(priv))
+		return -EBUSY;
+
 	seq_printf(s, "%s interrupt coalesce info:\n", is_tx ? "tx" : "rx");
 
 	seq_puts(s, "VEC_ID  ALGO_STATE  PROFILE_ID  CQE_MODE  TUNE_STATE  ");
@@ -442,18 +454,26 @@ static void hns3_dump_coal_info(struct seq_file *s, bool is_tx)
 	seq_puts(s, "HW_GL  HW_QL\n");
 
 	for (i = 0; i < priv->vector_num; i++) {
+		if (hns3_dbg_is_device_busy(priv))
+			return -EBUSY;
+
 		tqp_vector = &priv->tqp_vector[i];
 		hns3_get_coal_info(tqp_vector, s, i, is_tx);
 	}
+
+	return 0;
 }
 
 static int hns3_dbg_coal_info(struct seq_file *s, void *data)
 {
-	hns3_dump_coal_info(s, true);
-	seq_puts(s, "\n");
-	hns3_dump_coal_info(s, false);
+	int ret;
 
-	return 0;
+	ret = hns3_dump_coal_info(s, true);
+	if (ret)
+		return ret;
+
+	seq_puts(s, "\n");
+	return hns3_dump_coal_info(s, false);
 }
 
 static void hns3_dump_rx_queue_info(struct hns3_enet_ring *ring,
@@ -498,6 +518,9 @@ static int hns3_dbg_rx_queue_info(struct seq_file *s, void *data)
 	struct hns3_enet_ring *ring;
 	u32 i;
 
+	if (hns3_dbg_is_device_busy(priv))
+		return -EBUSY;
+
 	if (!priv->ring) {
 		dev_err(&h->pdev->dev, "priv->ring is NULL\n");
 		return -EFAULT;
@@ -511,8 +534,7 @@ static int hns3_dbg_rx_queue_info(struct seq_file *s, void *data)
 		 * to prevent reference to invalid memory. And need to ensure
 		 * that the following code is executed within 100ms.
 		 */
-		if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
-		    test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
+		if (hns3_dbg_is_device_busy(priv))
 			return -EPERM;
 
 		ring = &priv->ring[(u32)(i + h->kinfo.num_tqps)];
@@ -563,6 +585,9 @@ static int hns3_dbg_tx_queue_info(struct seq_file *s, void *data)
 	struct hns3_enet_ring *ring;
 	u32 i;
 
+	if (hns3_dbg_is_device_busy(priv))
+		return -EBUSY;
+
 	if (!priv->ring) {
 		dev_err(&h->pdev->dev, "priv->ring is NULL\n");
 		return -EFAULT;
@@ -576,8 +601,7 @@ static int hns3_dbg_tx_queue_info(struct seq_file *s, void *data)
 		 * to prevent reference to invalid memory. And need to ensure
 		 * that the following code is executed within 100ms.
 		 */
-		if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
-		    test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
+		if (hns3_dbg_is_device_busy(priv))
 			return -EPERM;
 
 		ring = &priv->ring[i];
@@ -596,6 +620,9 @@ static int hns3_dbg_queue_map(struct seq_file *s, void *data)
 	if (!h->ae_algo->ops->get_global_queue_id)
 		return -EOPNOTSUPP;
 
+	if (hns3_dbg_is_device_busy(priv))
+		return -EBUSY;
+
 	seq_puts(s, "local_queue_id  global_queue_id  vector_id\n");
 
 	for (i = 0; i < h->kinfo.num_tqps; i++) {
@@ -643,6 +670,9 @@ static int hns3_dbg_rx_bd_info(struct seq_file *s, void *private)
 	struct hns3_desc *desc;
 	unsigned int i;
 
+	if (hns3_dbg_is_device_busy(priv))
+		return -EBUSY;
+
 	if (data->qid >= h->kinfo.num_tqps) {
 		dev_err(&h->pdev->dev, "queue%u is not in use\n", data->qid);
 		return -EINVAL;
@@ -655,8 +685,10 @@ static int hns3_dbg_rx_bd_info(struct seq_file *s, void *private)
 
 	ring = &priv->ring[data->qid + data->handle->kinfo.num_tqps];
 	for (i = 0; i < ring->desc_num; i++) {
-		desc = &ring->desc[i];
+		if (hns3_dbg_is_device_busy(priv))
+			return -EBUSY;
 
+		desc = &ring->desc[i];
 		hns3_dump_rx_bd_info(priv, desc, s, i);
 	}
 
@@ -688,6 +720,9 @@ static int hns3_dbg_tx_bd_info(struct seq_file *s, void *private)
 	struct hns3_desc *desc;
 	unsigned int i;
 
+	if (hns3_dbg_is_device_busy(priv))
+		return -EBUSY;
+
 	if (data->qid >= h->kinfo.num_tqps) {
 		dev_err(&h->pdev->dev, "queue%u is not in use\n", data->qid);
 		return -EINVAL;
@@ -700,8 +735,10 @@ static int hns3_dbg_tx_bd_info(struct seq_file *s, void *private)
 
 	ring = &priv->ring[data->qid];
 	for (i = 0; i < ring->desc_num; i++) {
-		desc = &ring->desc[i];
+		if (hns3_dbg_is_device_busy(priv))
+			return -EBUSY;
 
+		desc = &ring->desc[i];
 		hns3_dump_tx_bd_info(desc, s, i);
 	}
 
@@ -804,9 +841,8 @@ static int hns3_dbg_page_pool_info(struct seq_file *s, void *data)
 	seq_puts(s, "POOL_SIZE(PAGE_NUM)  ORDER  NUMA_ID  MAX_LEN\n");
 
 	for (i = 0; i < h->kinfo.num_tqps; i++) {
-		if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
-		    test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
-			return -EPERM;
+		if (hns3_dbg_is_device_busy(priv))
+			return -EBUSY;
 
 		ring = &priv->ring[(u32)(i + h->kinfo.num_tqps)];
 		hns3_dump_page_pool_info(ring, s, i);
@@ -821,8 +857,7 @@ static int hns3_dbg_bd_info_show(struct seq_file *s, void *private)
 	struct hnae3_handle *h = data->handle;
 	struct hns3_nic_priv *priv = h->priv;
 
-	if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
-	    test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
+	if (hns3_dbg_is_device_busy(priv))
 		return -EBUSY;
 
 	if (data->cmd == HNAE3_DBG_CMD_TX_BD)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 008c8a5b6158..ae82bd55752a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -2542,6 +2542,9 @@ static int hclge_dbg_dump_umv_info(struct seq_file *s, void *data)
 	struct hclge_vport *vport;
 	u8 i;
 
+	if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
+		return -EBUSY;
+
 	seq_printf(s, "num_alloc_vport   : %u\n", hdev->num_alloc_vport);
 	seq_printf(s, "max_umv_size     : %u\n", hdev->max_umv_size);
 	seq_printf(s, "wanted_umv_size  : %u\n", hdev->wanted_umv_size);
@@ -2752,6 +2755,9 @@ static int hclge_dbg_dump_vlan_offload_config(struct hclge_dev *hdev,
 	int ret;
 	u8 i;
 
+	if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
+		return -EBUSY;
+
 	seq_puts(s, "FUNC_ID  PVID  ACCEPT_TAG1  ACCEPT_TAG2 ACCEPT_UNTAG1  ");
 	seq_puts(s, "ACCEPT_UNTAG2  INSERT_TAG1  INSERT_TAG2  SHIFT_TAG  ");
 	seq_puts(s, "STRIP_TAG1  STRIP_TAG2  DROP_TAG1  DROP_TAG2  ");
-- 
Gitee