[PATCH net 0/7] net: hns3: add some fixes for -net

[PATCH net 0/7] net: hns3: add some fixes for -net

[Guangbin Huang]

This series adds some fixes for the HNS3 ethernet driver.

Guangbin Huang (1):
  net: hns3: fix get wrong pfc_en when query PFC configuration

Guojia Liao (1):
  net: hns3: fix duplicate node in VLAN list

Yonglong Liu (1):
  net: hns3: fix speed unknown issue in bond 4

Yufeng Mo (4):
  net: hns3: clear hardware resource when loading driver
  net: hns3: add waiting time before cmdq memory is released
  net: hns3: change the method of getting cmd index in debugfs
  net: hns3: fix GRO configuration error after reset

 drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 14 +++---
 drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h |  1 +
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c |  6 ++-
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h |  4 ++
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c | 13 +-----
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 52 +++++++++++++++++++---
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h    |  1 +
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c   |  7 ++-
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h   |  1 +
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c  | 21 ++++++---
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h  |  2 +
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c   |  2 +-
 12 files changed, 90 insertions(+), 34 deletions(-)

-- 
2.8.1

[PATCH net 1/7] net: hns3: clear hardware resource when loading driver

[Guangbin Huang]

From: Yufeng Mo <moyufeng@huawei.com>

If a PF is bonded to a virtual machine and the virtual machine exits
unexpectedly, some hardware resource cannot be cleared. In this case,
loading driver may cause exceptions. Therefore, the hardware resource
needs to be cleared when the driver is loaded.

Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h |  3 +++
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 26 ++++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index 18bde77ef944..d455d689d93a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -270,6 +270,9 @@ enum hclge_opcode_type {
 	/* Led command */
 	HCLGE_OPC_LED_STATUS_CFG	= 0xB000,
 
+	/* clear hardware resource command */
+	HCLGE_OPC_CLEAR_HW_RESOURCE	= 0x700B,
+
 	/* NCL config command */
 	HCLGE_OPC_QUERY_NCL_CONFIG	= 0x7011,
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index ebeaf12e409b..ac88608a94b6 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -11443,6 +11443,28 @@ static void hclge_clear_resetting_state(struct hclge_dev *hdev)
 	}
 }
 
+static int hclge_clear_hw_resource(struct hclge_dev *hdev)
+{
+	struct hclge_desc desc;
+	int ret;
+
+	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CLEAR_HW_RESOURCE, false);
+
+	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+	/* This new command is only supported by new firmware, it will
+	 * fail with older firmware. Error value -EOPNOSUPP can only be
+	 * returned by older firmware running this command, to keep code
+	 * backward compatible we will override this value and return
+	 * success.
+	 */
+	if (ret && ret != -EOPNOTSUPP) {
+		dev_err(&hdev->pdev->dev,
+			"failed to clear hw resource, ret = %d\n", ret);
+		return ret;
+	}
+	return 0;
+}
+
 static void hclge_init_rxd_adv_layout(struct hclge_dev *hdev)
 {
 	if (hnae3_ae_dev_rxd_adv_layout_supported(hdev->ae_dev))
@@ -11492,6 +11514,10 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 	if (ret)
 		goto err_cmd_uninit;
 
+	ret  = hclge_clear_hw_resource(hdev);
+	if (ret)
+		goto err_cmd_uninit;
+
 	ret = hclge_get_cap(hdev);
 	if (ret)
 		goto err_cmd_uninit;
-- 
2.8.1

[PATCH net 2/7] net: hns3: add waiting time before cmdq memory is released

[Guangbin Huang]

From: Yufeng Mo <moyufeng@huawei.com>

After the cmdq registers are cleared, the firmware may take time to
clear out possible left over commands in the cmdq. Driver must release
cmdq memory only after firmware has completed processing of left over
commands.

Fixes: 232d0d55fca6 ("net: hns3: uninitialize command queue while unloading PF driver")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c   | 6 +++++-
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h   | 1 +
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c | 7 ++++++-
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h | 1 +
 4 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
index 887297e37cf3..eb748aa35952 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
@@ -573,9 +573,13 @@ static void hclge_cmd_uninit_regs(struct hclge_hw *hw)
 
 void hclge_cmd_uninit(struct hclge_dev *hdev)
 {
+	set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
+	/* wait to ensure that the firmware completes the possible left
+	 * over commands.
+	 */
+	msleep(HCLGE_CMDQ_CLEAR_WAIT_TIME);
 	spin_lock_bh(&hdev->hw.cmq.csq.lock);
 	spin_lock(&hdev->hw.cmq.crq.lock);
-	set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
 	hclge_cmd_uninit_regs(&hdev->hw);
 	spin_unlock(&hdev->hw.cmq.crq.lock);
 	spin_unlock_bh(&hdev->hw.cmq.csq.lock);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index d455d689d93a..ac70d49e205d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -9,6 +9,7 @@
 #include "hnae3.h"
 
 #define HCLGE_CMDQ_TX_TIMEOUT		30000
+#define HCLGE_CMDQ_CLEAR_WAIT_TIME	200
 #define HCLGE_DESC_DATA_LEN		6
 
 struct hclge_dev;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c
index bd19a2d89f6c..d9ddb0a243d4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c
@@ -507,12 +507,17 @@ static void hclgevf_cmd_uninit_regs(struct hclgevf_hw *hw)
 
 void hclgevf_cmd_uninit(struct hclgevf_dev *hdev)
 {
+	set_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state);
+	/* wait to ensure that the firmware completes the possible left
+	 * over commands.
+	 */
+	msleep(HCLGEVF_CMDQ_CLEAR_WAIT_TIME);
 	spin_lock_bh(&hdev->hw.cmq.csq.lock);
 	spin_lock(&hdev->hw.cmq.crq.lock);
-	set_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state);
 	hclgevf_cmd_uninit_regs(&hdev->hw);
 	spin_unlock(&hdev->hw.cmq.crq.lock);
 	spin_unlock_bh(&hdev->hw.cmq.csq.lock);
+
 	hclgevf_free_cmd_desc(&hdev->hw.cmq.csq);
 	hclgevf_free_cmd_desc(&hdev->hw.cmq.crq);
 }
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h
index 202feb70dba5..5b82177f98b4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h
@@ -8,6 +8,7 @@
 #include "hnae3.h"
 
 #define HCLGEVF_CMDQ_TX_TIMEOUT		30000
+#define HCLGEVF_CMDQ_CLEAR_WAIT_TIME	200
 #define HCLGEVF_CMDQ_RX_INVLD_B		0
 #define HCLGEVF_CMDQ_RX_OUTVLD_B	1
 
-- 
2.8.1

[PATCH net 3/7] net: hns3: fix speed unknown issue in bond 4

[Guangbin Huang]

From: Yonglong Liu <liuyonglong@huawei.com>

In bond 4, when the link goes down and up repeatedly, the bond may get an
unknown speed, and then this port can not work.

The driver notify netif_carrier_on() before update the link state, when the
bond receive carrier on, will query the speed of the port, if the query
operation happens before updating the link state, will get an unknown
speed. So need to notify netif_carrier_on() after update the link state.

Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c   | 2 +-
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 2 +-
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index ac88608a94b6..78408136f253 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2952,12 +2952,12 @@ static void hclge_update_link_status(struct hclge_dev *hdev)
 	}
 
 	if (state != hdev->hw.mac.link) {
+		hdev->hw.mac.link = state;
 		client->ops->link_status_change(handle, state);
 		hclge_config_mac_tnl_int(hdev, state);
 		if (rclient && rclient->ops->link_status_change)
 			rclient->ops->link_status_change(rhandle, state);
 
-		hdev->hw.mac.link = state;
 		hclge_push_link_status(hdev);
 	}
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 8784d61e833f..f25580366879 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -506,10 +506,10 @@ void hclgevf_update_link_status(struct hclgevf_dev *hdev, int link_state)
 	link_state =
 		test_bit(HCLGEVF_STATE_DOWN, &hdev->state) ? 0 : link_state;
 	if (link_state != hdev->hw.mac.link) {
+		hdev->hw.mac.link = link_state;
 		client->ops->link_status_change(handle, !!link_state);
 		if (rclient && rclient->ops->link_status_change)
 			rclient->ops->link_status_change(rhandle, !!link_state);
-		hdev->hw.mac.link = link_state;
 	}
 
 	clear_bit(HCLGEVF_STATE_LINK_UPDATING, &hdev->state);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
index 772b2f8acd2e..b339b9bc0625 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
@@ -323,8 +323,8 @@ void hclgevf_mbx_async_handler(struct hclgevf_dev *hdev)
 			flag = (u8)msg_q[5];
 
 			/* update upper layer with new link link status */
-			hclgevf_update_link_status(hdev, link_status);
 			hclgevf_update_speed_duplex(hdev, speed, duplex);
+			hclgevf_update_link_status(hdev, link_status);
 
 			if (flag & HCLGE_MBX_PUSH_LINK_STATUS_EN)
 				set_bit(HCLGEVF_STATE_PF_PUSH_LINK_STATUS,
-- 
2.8.1

[PATCH net 4/7] net: hns3: fix duplicate node in VLAN list

[Guangbin Huang]

From: Guojia Liao <liaoguojia@huawei.com>

VLAN list should not be added duplicate VLAN node, otherwise it would
cause "add failed" when restore VLAN from VLAN list, so this patch adds
VLAN ID check before adding node into VLAN list.

Fixes: c6075b193462 ("net: hns3: Record VF vlan tables")
Signed-off-by: Guojia Liao <liaoguojia@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 78408136f253..1d0fa966e55a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -10073,7 +10073,11 @@ static int hclge_init_vlan_config(struct hclge_dev *hdev)
 static void hclge_add_vport_vlan_table(struct hclge_vport *vport, u16 vlan_id,
 				       bool writen_to_tbl)
 {
-	struct hclge_vport_vlan_cfg *vlan;
+	struct hclge_vport_vlan_cfg *vlan, *tmp;
+
+	list_for_each_entry_safe(vlan, tmp, &vport->vlan_list, node)
+		if (vlan->vlan_id == vlan_id)
+			return;
 
 	vlan = kzalloc(sizeof(*vlan), GFP_KERNEL);
 	if (!vlan)
-- 
2.8.1

[PATCH net 5/7] net: hns3: change the method of getting cmd index in debugfs

[Guangbin Huang]

From: Yufeng Mo <moyufeng@huawei.com>

Currently, the cmd index is obtained in debugfs by comparing file names.
However, this method may cause errors when processing more complex file
names. So, change this method by saving cmd in private data and comparing
it when getting cmd index in debugfs for optimization.

Fixes: 5e69ea7ee2a6 ("net: hns3: refactor the debugfs process")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 14 +++++++-------
 drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h |  1 +
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index 532523069d74..80461ab0ce9e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -938,20 +938,19 @@ static int hns3_dbg_dev_info(struct hnae3_handle *h, char *buf, int len)
 	return 0;
 }
 
-static int hns3_dbg_get_cmd_index(struct hnae3_handle *handle,
-				  const unsigned char *name, u32 *index)
+static int hns3_dbg_get_cmd_index(struct hns3_dbg_data *dbg_data, u32 *index)
 {
 	u32 i;
 
 	for (i = 0; i < ARRAY_SIZE(hns3_dbg_cmd); i++) {
-		if (!strncmp(name, hns3_dbg_cmd[i].name,
-			     strlen(hns3_dbg_cmd[i].name))) {
+		if (hns3_dbg_cmd[i].cmd == dbg_data->cmd) {
 			*index = i;
 			return 0;
 		}
 	}
 
-	dev_err(&handle->pdev->dev, "unknown command(%s)\n", name);
+	dev_err(&dbg_data->handle->pdev->dev, "unknown command(%d)\n",
+		dbg_data->cmd);
 	return -EINVAL;
 }
 
@@ -1019,8 +1018,7 @@ static ssize_t hns3_dbg_read(struct file *filp, char __user *buffer,
 	u32 index;
 	int ret;
 
-	ret = hns3_dbg_get_cmd_index(handle, filp->f_path.dentry->d_iname,
-				     &index);
+	ret = hns3_dbg_get_cmd_index(dbg_data, &index);
 	if (ret)
 		return ret;
 
@@ -1090,6 +1088,7 @@ static int hns3_dbg_bd_file_init(struct hnae3_handle *handle, u32 cmd)
 		char name[HNS3_DBG_FILE_NAME_LEN];
 
 		data[i].handle = handle;
+		data[i].cmd = hns3_dbg_cmd[cmd].cmd;
 		data[i].qid = i;
 		sprintf(name, "%s%u", hns3_dbg_cmd[cmd].name, i);
 		debugfs_create_file(name, 0400, entry_dir, &data[i],
@@ -1110,6 +1109,7 @@ hns3_dbg_common_file_init(struct hnae3_handle *handle, u32 cmd)
 		return -ENOMEM;
 
 	data->handle = handle;
+	data->cmd = hns3_dbg_cmd[cmd].cmd;
 	entry_dir = hns3_dbg_dentry[hns3_dbg_cmd[cmd].dentry].dentry;
 	debugfs_create_file(hns3_dbg_cmd[cmd].name, 0400, entry_dir,
 			    data, &hns3_dbg_fops);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h
index f3766ff38bb7..bd8801065e02 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h
@@ -22,6 +22,7 @@ struct hns3_dbg_item {
 
 struct hns3_dbg_data {
 	struct hnae3_handle *handle;
+	enum hnae3_dbg_cmd cmd;
 	u16 qid;
 };
 
-- 
2.8.1

[PATCH net 6/7] net: hns3: fix GRO configuration error after reset

[Guangbin Huang]

From: Yufeng Mo <moyufeng@huawei.com>

The GRO configuration is enabled by default after reset. This
is incorrect and should be restored to the user-configured value.
So this restoration is added during reset initialization.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c   | 18 +++++++++++++-----
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h   |  1 +
 .../net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 19 ++++++++++++++-----
 .../net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h |  2 ++
 4 files changed, 30 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 1d0fa966e55a..03ae122f1c9a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1550,6 +1550,7 @@ static int hclge_configure(struct hclge_dev *hdev)
 	hdev->tm_info.hw_pfc_map = 0;
 	hdev->wanted_umv_size = cfg.umv_space;
 	hdev->tx_spare_buf_size = cfg.tx_spare_buf_size;
+	hdev->gro_en = true;
 	if (cfg.vlan_fliter_cap == HCLGE_VLAN_FLTR_CAN_MDF)
 		set_bit(HNAE3_DEV_SUPPORT_VLAN_FLTR_MDF_B, ae_dev->caps);
 
@@ -1618,7 +1619,7 @@ static int hclge_config_tso(struct hclge_dev *hdev, u16 tso_mss_min,
 	return hclge_cmd_send(&hdev->hw, &desc, 1);
 }
 
-static int hclge_config_gro(struct hclge_dev *hdev, bool en)
+static int hclge_config_gro(struct hclge_dev *hdev)
 {
 	struct hclge_cfg_gro_status_cmd *req;
 	struct hclge_desc desc;
@@ -1630,7 +1631,7 @@ static int hclge_config_gro(struct hclge_dev *hdev, bool en)
 	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_GRO_GENERIC_CONFIG, false);
 	req = (struct hclge_cfg_gro_status_cmd *)desc.data;
 
-	req->gro_en = en ? 1 : 0;
+	req->gro_en = hdev->gro_en ? 1 : 0;
 
 	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
 	if (ret)
@@ -11586,7 +11587,7 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 		goto err_mdiobus_unreg;
 	}
 
-	ret = hclge_config_gro(hdev, true);
+	ret = hclge_config_gro(hdev);
 	if (ret)
 		goto err_mdiobus_unreg;
 
@@ -11967,7 +11968,7 @@ static int hclge_reset_ae_dev(struct hnae3_ae_dev *ae_dev)
 		return ret;
 	}
 
-	ret = hclge_config_gro(hdev, true);
+	ret = hclge_config_gro(hdev);
 	if (ret)
 		return ret;
 
@@ -12701,8 +12702,15 @@ static int hclge_gro_en(struct hnae3_handle *handle, bool enable)
 {
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_dev *hdev = vport->back;
+	bool gro_en_old = hdev->gro_en;
+	int ret;
+
+	hdev->gro_en = enable;
+	ret = hclge_config_gro(hdev);
+	if (ret)
+		hdev->gro_en = gro_en_old;
 
-	return hclge_config_gro(hdev, enable);
+	return ret;
 }
 
 static void hclge_sync_promisc_mode(struct hclge_dev *hdev)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 3d3352491dba..e446b839a371 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -927,6 +927,7 @@ struct hclge_dev {
 	unsigned long fd_bmap[BITS_TO_LONGS(MAX_FD_FILTER_NUM)];
 	enum HCLGE_FD_ACTIVE_RULE_TYPE fd_active_type;
 	u8 fd_en;
+	bool gro_en;
 
 	u16 wanted_umv_size;
 	/* max available unicast mac vlan space */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index f25580366879..938654778979 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2487,6 +2487,8 @@ static int hclgevf_configure(struct hclgevf_dev *hdev)
 {
 	int ret;
 
+	hdev->gro_en = true;
+
 	ret = hclgevf_get_basic_info(hdev);
 	if (ret)
 		return ret;
@@ -2549,7 +2551,7 @@ static int hclgevf_init_roce_base_info(struct hclgevf_dev *hdev)
 	return 0;
 }
 
-static int hclgevf_config_gro(struct hclgevf_dev *hdev, bool en)
+static int hclgevf_config_gro(struct hclgevf_dev *hdev)
 {
 	struct hclgevf_cfg_gro_status_cmd *req;
 	struct hclgevf_desc desc;
@@ -2562,7 +2564,7 @@ static int hclgevf_config_gro(struct hclgevf_dev *hdev, bool en)
 				     false);
 	req = (struct hclgevf_cfg_gro_status_cmd *)desc.data;
 
-	req->gro_en = en ? 1 : 0;
+	req->gro_en = hdev->gro_en ? 1 : 0;
 
 	ret = hclgevf_cmd_send(&hdev->hw, &desc, 1);
 	if (ret)
@@ -3308,7 +3310,7 @@ static int hclgevf_reset_hdev(struct hclgevf_dev *hdev)
 		return ret;
 	}
 
-	ret = hclgevf_config_gro(hdev, true);
+	ret = hclgevf_config_gro(hdev);
 	if (ret)
 		return ret;
 
@@ -3389,7 +3391,7 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev)
 	if (ret)
 		goto err_config;
 
-	ret = hclgevf_config_gro(hdev, true);
+	ret = hclgevf_config_gro(hdev);
 	if (ret)
 		goto err_config;
 
@@ -3638,8 +3640,15 @@ void hclgevf_update_speed_duplex(struct hclgevf_dev *hdev, u32 speed,
 static int hclgevf_gro_en(struct hnae3_handle *handle, bool enable)
 {
 	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	bool gro_en_old = hdev->gro_en;
+	int ret;
 
-	return hclgevf_config_gro(hdev, enable);
+	hdev->gro_en = enable;
+	ret = hclgevf_config_gro(hdev);
+	if (ret)
+		hdev->gro_en = gro_en_old;
+
+	return ret;
 }
 
 static void hclgevf_get_media_type(struct hnae3_handle *handle, u8 *media_type,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
index d7d02848d674..e8013be055f8 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
@@ -310,6 +310,8 @@ struct hclgevf_dev {
 	u16 *vector_status;
 	int *vector_irq;
 
+	bool gro_en;
+
 	unsigned long vlan_del_fail_bmap[BITS_TO_LONGS(VLAN_N_VID)];
 
 	struct hclgevf_mac_table_cfg mac_table;
-- 
2.8.1

[PATCH net 7/7] net: hns3: fix get wrong pfc_en when query PFC configuration

[Guangbin Huang]

Currently, when query PFC configuration by dcbtool, driver will return
PFC enable status based on TC. As all priorities are mapped to TC0 by
default, if TC0 is enabled, then all priorities mapped to TC0 will be
shown as enabled status when query PFC setting, even though some
priorities have never been set.

for example:
$ dcb pfc show dev eth0
pfc-cap 4 macsec-bypass off delay 0
prio-pfc 0:off 1:off 2:off 3:off 4:off 5:off 6:off 7:off
$ dcb pfc set dev eth0 prio-pfc 0:on 1:on 2:on 3:on
$ dcb pfc show dev eth0
pfc-cap 4 macsec-bypass off delay 0
prio-pfc 0:on 1:on 2:on 3:on 4:on 5:on 6:on 7:on

To fix this problem, just returns user's PFC config parameter saved in
driver.

Fixes: cacde272dd00 ("net: hns3: Add hclge_dcb module for the support of DCB feature")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index 5bf5db91d16c..39f56f245d84 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -255,21 +255,12 @@ static int hclge_ieee_getpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
 	u64 requests[HNAE3_MAX_TC], indications[HNAE3_MAX_TC];
 	struct hclge_vport *vport = hclge_get_vport(h);
 	struct hclge_dev *hdev = vport->back;
-	u8 i, j, pfc_map, *prio_tc;
 	int ret;
+	u8 i;
 
 	memset(pfc, 0, sizeof(*pfc));
 	pfc->pfc_cap = hdev->pfc_max;
-	prio_tc = hdev->tm_info.prio_tc;
-	pfc_map = hdev->tm_info.hw_pfc_map;
-
-	/* Pfc setting is based on TC */
-	for (i = 0; i < hdev->tm_info.num_tc; i++) {
-		for (j = 0; j < HNAE3_MAX_USER_PRIO; j++) {
-			if ((prio_tc[j] == i) && (pfc_map & BIT(i)))
-				pfc->pfc_en |= BIT(j);
-		}
-	}
+	pfc->pfc_en = hdev->tm_info.pfc_en;
 
 	ret = hclge_pfc_tx_stats_get(hdev, requests);
 	if (ret)
-- 
2.8.1

Re: [PATCH net 0/7] net: hns3: add some fixes for -net

[patchwork-bot+netdevbpf]

Hello:

This series was applied to netdev/net.git (refs/heads/master):

On Thu, 26 Aug 2021 19:21:54 +0800 you wrote:
> This series adds some fixes for the HNS3 ethernet driver.
> 
> Guangbin Huang (1):
>   net: hns3: fix get wrong pfc_en when query PFC configuration
> 
> Guojia Liao (1):
>   net: hns3: fix duplicate node in VLAN list
> 
> [...]

Here is the summary with links:
  - [net,1/7] net: hns3: clear hardware resource when loading driver
    https://git.kernel.org/netdev/net/c/1a6d281946c3
  - [net,2/7] net: hns3: add waiting time before cmdq memory is released
    https://git.kernel.org/netdev/net/c/a96d9330b02a
  - [net,3/7] net: hns3: fix speed unknown issue in bond 4
    https://git.kernel.org/netdev/net/c/b15c072a9f4a
  - [net,4/7] net: hns3: fix duplicate node in VLAN list
    https://git.kernel.org/netdev/net/c/94391fae82f7
  - [net,5/7] net: hns3: change the method of getting cmd index in debugfs
    https://git.kernel.org/netdev/net/c/55649d56541b
  - [net,6/7] net: hns3: fix GRO configuration error after reset
    https://git.kernel.org/netdev/net/c/3462207d2d68
  - [net,7/7] net: hns3: fix get wrong pfc_en when query PFC configuration
    https://git.kernel.org/netdev/net/c/8c1671e0d13d

You are awesome, thank you!
--
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