[PATCH net-next 0/6] net: hns3: add some new feature

[PATCH net-next 0/6] net: hns3: add some new feature

[Huazhong Tan]

This patch-set includes some new features for the HNS3 ethernet
controller driver.

[patch 01/06] adds support for configuring VF link status on the host.

[patch 02/06] adds support for configuring VF spoof check.

[patch 03/06] adds support for configuring VF trust.

[patch 04/06] adds support for configuring VF bandwidth on the host.

[patch 05/06] adds support for configuring VF MAC on the host.

[patch 06/06] adds support for tx-scatter-gather-fraglist.

Huazhong Tan (1):
  net: hns3: add support for configuring VF MAC from the host

Jian Shen (2):
  net: hns3: add support for spoof check setting
  net: hns3: add support for setting VF trust

Yonglong Liu (1):
  net: hns3: add support for configuring bandwidth of VF on the host

Yufeng Mo (1):
  net: hns3: add support for setting VF link status on the host

Yunsheng Lin (1):
  net: hns3: support tx-scatter-gather-fraglist feature

 drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h    |   1 +
 drivers/net/ethernet/hisilicon/hns3/hnae3.h        |  23 ++
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c    | 355 ++++++++++++-----
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.h    |  12 +-
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h |   5 +-
 .../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c |  79 ++++
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 434 ++++++++++++++++++++-
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h    |  17 +-
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c |  85 +++-
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c  |  43 ++
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h  |   8 +
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c  |  64 +--
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h  |   1 +
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c   |  12 +
 14 files changed, 986 insertions(+), 153 deletions(-)

-- 
2.7.4

[PATCH net-next 1/6] net: hns3: add support for setting VF link status on the host

[Huazhong Tan]

From: Yufeng Mo <moyufeng@huawei.com>

This patch adds support to configure VF link properties.
The options are auto, enable, and disable. Even if the PF
is down, the communication between VFs will be normal
if the VFs are set to enable. The commands are as follows:

'ip link set <pf> vf <vf_id> state <auto|enable|disable>'
change the VF status

'ip link show'
show the setting status

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hnae3.h        |  8 +++
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c    | 24 +++++++++
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 57 ++++++++++++++++++++++
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h    |  6 +++
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 17 ++++++-
 5 files changed, 111 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index c4b7bf8..1fc3728 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -364,6 +364,10 @@ struct hnae3_ae_dev {
  *   Enable/disable HW GRO
  * add_arfs_entry
  *   Check the 5-tuples of flow, and create flow director rule
+ * get_vf_config
+ *   Get the VF configuration setting by the host
+ * set_vf_link_state
+ *   Set VF link status
  */
 struct hnae3_ae_ops {
 	int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev);
@@ -529,6 +533,10 @@ struct hnae3_ae_ops {
 	int (*mac_connect_phy)(struct hnae3_handle *handle);
 	void (*mac_disconnect_phy)(struct hnae3_handle *handle);
 	void (*restore_vlan_table)(struct hnae3_handle *handle);
+	int (*get_vf_config)(struct hnae3_handle *handle, int vf,
+			     struct ifla_vf_info *ivf);
+	int (*set_vf_link_state)(struct hnae3_handle *handle, int vf,
+				 int link_state);
 };
 
 struct hnae3_dcb_ops {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 616cad0..2136323 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1805,6 +1805,28 @@ static int hns3_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
 }
 #endif
 
+static int hns3_nic_get_vf_config(struct net_device *ndev, int vf,
+				  struct ifla_vf_info *ivf)
+{
+	struct hnae3_handle *h = hns3_get_handle(ndev);
+
+	if (!h->ae_algo->ops->get_vf_config)
+		return -EOPNOTSUPP;
+
+	return h->ae_algo->ops->get_vf_config(h, vf, ivf);
+}
+
+static int hns3_nic_set_vf_link_state(struct net_device *ndev, int vf,
+				      int link_state)
+{
+	struct hnae3_handle *h = hns3_get_handle(ndev);
+
+	if (!h->ae_algo->ops->set_vf_link_state)
+		return -EOPNOTSUPP;
+
+	return h->ae_algo->ops->set_vf_link_state(h, vf, link_state);
+}
+
 static const struct net_device_ops hns3_nic_netdev_ops = {
 	.ndo_open		= hns3_nic_net_open,
 	.ndo_stop		= hns3_nic_net_stop,
@@ -1823,6 +1845,8 @@ static const struct net_device_ops hns3_nic_netdev_ops = {
 #ifdef CONFIG_RFS_ACCEL
 	.ndo_rx_flow_steer	= hns3_rx_flow_steer,
 #endif
+	.ndo_get_vf_config	= hns3_nic_get_vf_config,
+	.ndo_set_vf_link_state	= hns3_nic_set_vf_link_state,
 
 };
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index fd7f943..931a311 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -55,6 +55,8 @@
 
 #define HCLGE_LINK_STATUS_MS	10
 
+#define HCLGE_VF_VPORT_START_NUM	1
+
 static int hclge_set_mac_mtu(struct hclge_dev *hdev, int new_mps);
 static int hclge_init_vlan_config(struct hclge_dev *hdev);
 static void hclge_sync_vlan_filter(struct hclge_dev *hdev);
@@ -1633,6 +1635,7 @@ static int hclge_alloc_vport(struct hclge_dev *hdev)
 	for (i = 0; i < num_vport; i++) {
 		vport->back = hdev;
 		vport->vport_id = i;
+		vport->vf_info.link_state = IFLA_VF_LINK_STATE_AUTO;
 		vport->mps = HCLGE_MAC_DEFAULT_FRAME;
 		vport->port_base_vlan_cfg.state = HNAE3_PORT_BASE_VLAN_DISABLE;
 		vport->rxvlan_cfg.rx_vlan_offload_en = true;
@@ -2853,6 +2856,58 @@ static int hclge_get_status(struct hnae3_handle *handle)
 	return hdev->hw.mac.link;
 }
 
+static struct hclge_vport *hclge_get_vf_vport(struct hclge_dev *hdev, int vf)
+{
+	if (pci_num_vf(hdev->pdev) == 0) {
+		dev_err(&hdev->pdev->dev,
+			"SRIOV is disabled, can not get vport(%d) info.\n", vf);
+		return NULL;
+	}
+
+	if (vf < 0 || vf >= pci_num_vf(hdev->pdev)) {
+		dev_err(&hdev->pdev->dev,
+			"vf id(%d) is out of range(0 <= vfid < %d)\n",
+			vf, pci_num_vf(hdev->pdev));
+		return NULL;
+	}
+
+	/* VF start from 1 in vport */
+	vf += HCLGE_VF_VPORT_START_NUM;
+	return &hdev->vport[vf];
+}
+
+static int hclge_get_vf_config(struct hnae3_handle *handle, int vf,
+			       struct ifla_vf_info *ivf)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	struct hclge_dev *hdev = vport->back;
+
+	vport = hclge_get_vf_vport(hdev, vf);
+	if (!vport)
+		return -EINVAL;
+
+	ivf->vf = vf;
+	ivf->linkstate = vport->vf_info.link_state;
+	ether_addr_copy(ivf->mac, vport->vf_info.mac);
+
+	return 0;
+}
+
+static int hclge_set_vf_link_state(struct hnae3_handle *handle, int vf,
+				   int link_state)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	struct hclge_dev *hdev = vport->back;
+
+	vport = hclge_get_vf_vport(hdev, vf);
+	if (!vport)
+		return -EINVAL;
+
+	vport->vf_info.link_state = link_state;
+
+	return 0;
+}
+
 static u32 hclge_check_event_cause(struct hclge_dev *hdev, u32 *clearval)
 {
 	u32 rst_src_reg, cmdq_src_reg, msix_src_reg;
@@ -10152,6 +10207,8 @@ static const struct hnae3_ae_ops hclge_ops = {
 	.mac_connect_phy = hclge_mac_connect_phy,
 	.mac_disconnect_phy = hclge_mac_disconnect_phy,
 	.restore_vlan_table = hclge_restore_vlan_table,
+	.get_vf_config = hclge_get_vf_config,
+	.set_vf_link_state = hclge_set_vf_link_state,
 };
 
 static struct hnae3_ae_algo ae_algo = {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 3e9574a..6a3ccda 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -885,6 +885,11 @@ struct hclge_port_base_vlan_config {
 	struct hclge_vlan_info vlan_info;
 };
 
+struct hclge_vf_info {
+	int link_state;
+	u8 mac[ETH_ALEN];
+};
+
 struct hclge_vport {
 	u16 alloc_tqps;	/* Allocated Tx/Rx queues */
 
@@ -916,6 +921,7 @@ struct hclge_vport {
 	unsigned long state;
 	unsigned long last_active_jiffies;
 	u32 mps; /* Max packet size */
+	struct hclge_vf_info vf_info;
 
 	struct list_head uc_mac_list;   /* Store VF unicast table */
 	struct list_head mc_mac_list;   /* Store VF multicast table */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index f5da28a..b842291 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -428,6 +428,9 @@ static int hclge_get_vf_media_type(struct hclge_vport *vport,
 static int hclge_get_link_info(struct hclge_vport *vport,
 			       struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 {
+#define HCLGE_VF_LINK_STATE_UP		1U
+#define HCLGE_VF_LINK_STATE_DOWN	0U
+
 	struct hclge_dev *hdev = vport->back;
 	u16 link_status;
 	u8 msg_data[8];
@@ -435,7 +438,19 @@ static int hclge_get_link_info(struct hclge_vport *vport,
 	u16 duplex;
 
 	/* mac.link can only be 0 or 1 */
-	link_status = (u16)hdev->hw.mac.link;
+	switch (vport->vf_info.link_state) {
+	case IFLA_VF_LINK_STATE_ENABLE:
+		link_status = HCLGE_VF_LINK_STATE_UP;
+		break;
+	case IFLA_VF_LINK_STATE_DISABLE:
+		link_status = HCLGE_VF_LINK_STATE_DOWN;
+		break;
+	case IFLA_VF_LINK_STATE_AUTO:
+	default:
+		link_status = (u16)hdev->hw.mac.link;
+		break;
+	}
+
 	duplex = hdev->hw.mac.duplex;
 	memcpy(&msg_data[0], &link_status, sizeof(u16));
 	memcpy(&msg_data[2], &hdev->hw.mac.speed, sizeof(u32));
-- 
2.7.4

[PATCH net-next 2/6] net: hns3: add support for spoof check setting

[Huazhong Tan]

From: Jian Shen <shenjian15@huawei.com>

This patch adds support for spoof check configuration for VFs.
When it is enabled, "spoof checking" is done for both mac address
and VLAN. For each VF, the HW ensures that the source MAC address
(or VLAN) of every outgoing packet exists in the MAC-list (or
VLAN-list) configured for RX filtering for that VF. If not,
the packet is dropped.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hnae3.h        |   4 +
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c    |  14 +++
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 125 +++++++++++++++++++--
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h    |   1 +
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c |   3 +
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c  |   2 +-
 6 files changed, 140 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 1fc3728..b7b8169 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -368,6 +368,8 @@ struct hnae3_ae_dev {
  *   Get the VF configuration setting by the host
  * set_vf_link_state
  *   Set VF link status
+ * set_vf_spoofchk
+ *   Enable/disable spoof check for specified vf
  */
 struct hnae3_ae_ops {
 	int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev);
@@ -537,6 +539,8 @@ struct hnae3_ae_ops {
 			     struct ifla_vf_info *ivf);
 	int (*set_vf_link_state)(struct hnae3_handle *handle, int vf,
 				 int link_state);
+	int (*set_vf_spoofchk)(struct hnae3_handle *handle, int vf,
+			       bool enable);
 };
 
 struct hnae3_dcb_ops {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 2136323..4a5404e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1643,6 +1643,19 @@ static int hns3_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
 	return ret;
 }
 
+static int hns3_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable)
+{
+	struct hnae3_handle *handle = hns3_get_handle(netdev);
+
+	if (hns3_nic_resetting(netdev))
+		return -EBUSY;
+
+	if (!handle->ae_algo->ops->set_vf_spoofchk)
+		return -EOPNOTSUPP;
+
+	return handle->ae_algo->ops->set_vf_spoofchk(handle, vf, enable);
+}
+
 static int hns3_nic_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct hnae3_handle *h = hns3_get_handle(netdev);
@@ -1842,6 +1855,7 @@ static const struct net_device_ops hns3_nic_netdev_ops = {
 	.ndo_vlan_rx_add_vid	= hns3_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid	= hns3_vlan_rx_kill_vid,
 	.ndo_set_vf_vlan	= hns3_ndo_set_vf_vlan,
+	.ndo_set_vf_spoofchk	= hns3_set_vf_spoofchk,
 #ifdef CONFIG_RFS_ACCEL
 	.ndo_rx_flow_steer	= hns3_rx_flow_steer,
 #endif
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 931a311..7c72862 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2888,6 +2888,7 @@ static int hclge_get_vf_config(struct hnae3_handle *handle, int vf,
 
 	ivf->vf = vf;
 	ivf->linkstate = vport->vf_info.link_state;
+	ivf->spoofchk = vport->vf_info.spoofchk;
 	ether_addr_copy(ivf->mac, vport->vf_info.mac);
 
 	return 0;
@@ -7619,6 +7620,8 @@ static int hclge_set_vf_vlan_common(struct hclge_dev *hdev, u16 vfid,
 				    __be16 proto)
 {
 #define HCLGE_MAX_VF_BYTES  16
+
+	struct hclge_vport *vport = &hdev->vport[vfid];
 	struct hclge_vlan_filter_vf_cfg_cmd *req0;
 	struct hclge_vlan_filter_vf_cfg_cmd *req1;
 	struct hclge_desc desc[2];
@@ -7627,10 +7630,18 @@ static int hclge_set_vf_vlan_common(struct hclge_dev *hdev, u16 vfid,
 	int ret;
 
 	/* if vf vlan table is full, firmware will close vf vlan filter, it
-	 * is unable and unnecessary to add new vlan id to vf vlan filter
+	 * is unable and unnecessary to add new vlan id to vf vlan filter.
+	 * If spoof check is enable, and vf vlan is full, it shouldn't add
+	 * new vlan, because tx packets with these vlan id will be dropped.
 	 */
-	if (test_bit(vfid, hdev->vf_vlan_full) && !is_kill)
+	if (test_bit(vfid, hdev->vf_vlan_full) && !is_kill) {
+		if (vport->vf_info.spoofchk && vlan) {
+			dev_err(&hdev->pdev->dev,
+				"Can't add vlan due to spoof check is on and vf vlan table is full\n");
+			return -EPERM;
+		}
 		return 0;
+	}
 
 	hclge_cmd_setup_basic_desc(&desc[0],
 				   HCLGE_OPC_VLAN_FILTER_VF_CFG, false);
@@ -8127,12 +8138,15 @@ static void hclge_restore_vlan_table(struct hnae3_handle *handle)
 		}
 
 		list_for_each_entry_safe(vlan, tmp, &vport->vlan_list, node) {
-			if (vlan->hd_tbl_status)
-				hclge_set_vlan_filter_hw(hdev,
-							 htons(ETH_P_8021Q),
-							 vport->vport_id,
-							 vlan->vlan_id,
-							 false);
+			int ret;
+
+			if (!vlan->hd_tbl_status)
+				continue;
+			ret = hclge_set_vlan_filter_hw(hdev, htons(ETH_P_8021Q),
+						       vport->vport_id,
+						       vlan->vlan_id, false);
+			if (ret)
+				break;
 		}
 	}
 
@@ -9374,6 +9388,97 @@ static void hclge_stats_clear(struct hclge_dev *hdev)
 	memset(&hdev->hw_stats, 0, sizeof(hdev->hw_stats));
 }
 
+static int hclge_set_mac_spoofchk(struct hclge_dev *hdev, int vf, bool enable)
+{
+	return hclge_config_switch_param(hdev, vf, enable,
+					 HCLGE_SWITCH_ANTI_SPOOF_MASK);
+}
+
+static int hclge_set_vlan_spoofchk(struct hclge_dev *hdev, int vf, bool enable)
+{
+	return hclge_set_vlan_filter_ctrl(hdev, HCLGE_FILTER_TYPE_VF,
+					  HCLGE_FILTER_FE_NIC_INGRESS_B,
+					  enable, vf);
+}
+
+static int hclge_set_vf_spoofchk_hw(struct hclge_dev *hdev, int vf, bool enable)
+{
+	int ret;
+
+	ret = hclge_set_mac_spoofchk(hdev, vf, enable);
+	if (ret) {
+		dev_err(&hdev->pdev->dev,
+			"Set vf %d mac spoof check %s failed, ret=%d\n",
+			vf, enable ? "on" : "off", ret);
+		return ret;
+	}
+
+	ret = hclge_set_vlan_spoofchk(hdev, vf, enable);
+	if (ret)
+		dev_err(&hdev->pdev->dev,
+			"Set vf %d vlan spoof check %s failed, ret=%d\n",
+			vf, enable ? "on" : "off", ret);
+
+	return ret;
+}
+
+static int hclge_set_vf_spoofchk(struct hnae3_handle *handle, int vf,
+				 bool enable)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	struct hclge_dev *hdev = vport->back;
+	u32 new_spoofchk = enable ? 1 : 0;
+	int ret;
+
+	if (hdev->pdev->revision == 0x20)
+		return -EOPNOTSUPP;
+
+	vport = hclge_get_vf_vport(hdev, vf);
+	if (!vport)
+		return -EINVAL;
+
+	if (vport->vf_info.spoofchk == new_spoofchk)
+		return 0;
+
+	if (enable && test_bit(vport->vport_id, hdev->vf_vlan_full))
+		dev_warn(&hdev->pdev->dev,
+			 "vf %d vlan table is full, enable spoof check may cause its packet send fail\n",
+			 vf);
+	else if (enable && hclge_is_umv_space_full(vport))
+		dev_warn(&hdev->pdev->dev,
+			 "vf %d mac table is full, enable spoof check may cause its packet send fail\n",
+			 vf);
+
+	ret = hclge_set_vf_spoofchk_hw(hdev, vport->vport_id, enable);
+	if (ret)
+		return ret;
+
+	vport->vf_info.spoofchk = new_spoofchk;
+	return 0;
+}
+
+static int hclge_reset_vport_spoofchk(struct hclge_dev *hdev)
+{
+	struct hclge_vport *vport = hdev->vport;
+	int ret;
+	int i;
+
+	if (hdev->pdev->revision == 0x20)
+		return 0;
+
+	/* resume the vf spoof check state after reset */
+	for (i = 0; i < hdev->num_alloc_vport; i++) {
+		ret = hclge_set_vf_spoofchk_hw(hdev, vport->vport_id,
+					       vport->vf_info.spoofchk);
+		if (ret)
+			return ret;
+
+		vport++;
+	}
+
+	return 0;
+}
+
 static void hclge_reset_vport_state(struct hclge_dev *hdev)
 {
 	struct hclge_vport *vport = hdev->vport;
@@ -9473,6 +9578,9 @@ static int hclge_reset_ae_dev(struct hnae3_ae_dev *ae_dev)
 	}
 
 	hclge_reset_vport_state(hdev);
+	ret = hclge_reset_vport_spoofchk(hdev);
+	if (ret)
+		return ret;
 
 	dev_info(&pdev->dev, "Reset done, %s driver initialization finished.\n",
 		 HCLGE_DRIVER_NAME);
@@ -10209,6 +10317,7 @@ static const struct hnae3_ae_ops hclge_ops = {
 	.restore_vlan_table = hclge_restore_vlan_table,
 	.get_vf_config = hclge_get_vf_config,
 	.set_vf_link_state = hclge_set_vf_link_state,
+	.set_vf_spoofchk = hclge_set_vf_spoofchk,
 };
 
 static struct hnae3_ae_algo ae_algo = {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 6a3ccda..9483529 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -888,6 +888,7 @@ struct hclge_port_base_vlan_config {
 struct hclge_vf_info {
 	int link_state;
 	u8 mac[ETH_ALEN];
+	u32 spoofchk;
 };
 
 struct hclge_vport {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index b842291..cad7029 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -324,6 +324,9 @@ static int hclge_set_vf_vlan_cfg(struct hclge_vport *vport,
 		proto =  msg_cmd->proto;
 		status = hclge_set_vlan_filter(handle, cpu_to_be16(proto),
 					       vlan, is_kill);
+		if (mbx_req->mbx_need_resp)
+			return hclge_gen_resp_to_vf(vport, mbx_req, status,
+						    NULL, 0);
 	} else if (msg_cmd->subcode == HCLGE_MBX_VLAN_RX_OFF_CFG) {
 		struct hnae3_handle *handle = &vport->nic;
 		bool en = msg_cmd->is_kill ? true : false;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index e3090b3..2b87b70 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -1267,7 +1267,7 @@ static int hclgevf_set_vlan_filter(struct hnae3_handle *handle,
 	memcpy(&msg_data[3], &proto, sizeof(proto));
 	ret = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_VLAN,
 				   HCLGE_MBX_VLAN_FILTER, msg_data,
-				   HCLGEVF_VLAN_MBX_MSG_LEN, false, NULL, 0);
+				   HCLGEVF_VLAN_MBX_MSG_LEN, true, NULL, 0);
 
 	/* when remove hw vlan filter failed, record the vlan id,
 	 * and try to remove it from hw later, to be consistence
-- 
2.7.4

[PATCH net-next 3/6] net: hns3: add support for setting VF trust

[Huazhong Tan]

From: Jian Shen <shenjian15@huawei.com>

This patch adds supports for setting VF trust by host. If specified
VF is trusted, then it can enable promisc(include allmulti mode).
If a trusted VF enabled promisc, and being untrusted, host will
disable promisc mode for this VF.

For VF will update its promisc mode from set_rx_mode now, so it's
unnecessary to set broadcst promisc mode when initialization or
reset.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h    |  1 +
 drivers/net/ethernet/hisilicon/hns3/hnae3.h        |  4 ++
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c    | 11 ++++
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h |  3 --
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 60 ++++++++++++++++++----
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h    |  8 +--
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 36 +++++++++++--
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c  | 34 +++++-------
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c   | 12 +++++
 9 files changed, 129 insertions(+), 40 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
index f8a87f8..0059d44 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
@@ -45,6 +45,7 @@ enum HCLGE_MBX_OPCODE {
 	HCLGE_MBX_GET_LINK_MODE,	/* (VF -> PF) get the link mode of pf */
 	HCLGE_MBX_PUSH_VLAN_INFO,	/* (PF -> VF) push port base vlan */
 	HCLGE_MBX_GET_MEDIA_TYPE,       /* (VF -> PF) get media type */
+	HCLGE_MBX_PUSH_PROMISC_INFO,	/* (PF -> VF) push vf promisc info */
 
 	HCLGE_MBX_GET_VF_FLR_STATUS = 200, /* (M7 -> PF) get vf reset status */
 	HCLGE_MBX_PUSH_LINK_STATUS,	/* (M7 -> PF) get port link status */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index b7b8169..ef56f37 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -370,6 +370,9 @@ struct hnae3_ae_dev {
  *   Set VF link status
  * set_vf_spoofchk
  *   Enable/disable spoof check for specified vf
+ * set_vf_trust
+ *   Enable/disable trust for specified vf, if the vf being trusted, then
+ *   it can enable promisc mode
  */
 struct hnae3_ae_ops {
 	int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev);
@@ -541,6 +544,7 @@ struct hnae3_ae_ops {
 				 int link_state);
 	int (*set_vf_spoofchk)(struct hnae3_handle *handle, int vf,
 			       bool enable);
+	int (*set_vf_trust)(struct hnae3_handle *handle, int vf, bool enable);
 };
 
 struct hnae3_dcb_ops {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 4a5404e..5c50555 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1656,6 +1656,16 @@ static int hns3_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable)
 	return handle->ae_algo->ops->set_vf_spoofchk(handle, vf, enable);
 }
 
+static int hns3_set_vf_trust(struct net_device *netdev, int vf, bool enable)
+{
+	struct hnae3_handle *handle = hns3_get_handle(netdev);
+
+	if (!handle->ae_algo->ops->set_vf_trust)
+		return -EOPNOTSUPP;
+
+	return handle->ae_algo->ops->set_vf_trust(handle, vf, enable);
+}
+
 static int hns3_nic_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct hnae3_handle *h = hns3_get_handle(netdev);
@@ -1856,6 +1866,7 @@ static const struct net_device_ops hns3_nic_netdev_ops = {
 	.ndo_vlan_rx_kill_vid	= hns3_vlan_rx_kill_vid,
 	.ndo_set_vf_vlan	= hns3_ndo_set_vf_vlan,
 	.ndo_set_vf_spoofchk	= hns3_set_vf_spoofchk,
+	.ndo_set_vf_trust	= hns3_set_vf_trust,
 #ifdef CONFIG_RFS_ACCEL
 	.ndo_rx_flow_steer	= hns3_rx_flow_steer,
 #endif
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index 4821fe0..265695a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -1090,9 +1090,6 @@ void hclge_cmd_setup_basic_desc(struct hclge_desc *desc,
 				enum hclge_opcode_type opcode, bool is_read);
 void hclge_cmd_reuse_desc(struct hclge_desc *desc, bool is_read);
 
-int hclge_cmd_set_promisc_mode(struct hclge_dev *hdev,
-			       struct hclge_promisc_param *param);
-
 enum hclge_cmd_status hclge_cmd_mdio_write(struct hclge_hw *hw,
 					   struct hclge_desc *desc);
 enum hclge_cmd_status hclge_cmd_mdio_read(struct hclge_hw *hw,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 7c72862..c63f723 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2889,6 +2889,7 @@ static int hclge_get_vf_config(struct hnae3_handle *handle, int vf,
 	ivf->vf = vf;
 	ivf->linkstate = vport->vf_info.link_state;
 	ivf->spoofchk = vport->vf_info.spoofchk;
+	ivf->trusted = vport->vf_info.trusted;
 	ether_addr_copy(ivf->mac, vport->vf_info.mac);
 
 	return 0;
@@ -4614,8 +4615,8 @@ static int hclge_unmap_ring_frm_vector(struct hnae3_handle *handle, int vector,
 	return ret;
 }
 
-int hclge_cmd_set_promisc_mode(struct hclge_dev *hdev,
-			       struct hclge_promisc_param *param)
+static int hclge_cmd_set_promisc_mode(struct hclge_dev *hdev,
+				      struct hclge_promisc_param *param)
 {
 	struct hclge_promisc_cfg_cmd *req;
 	struct hclge_desc desc;
@@ -4642,8 +4643,9 @@ int hclge_cmd_set_promisc_mode(struct hclge_dev *hdev,
 	return ret;
 }
 
-void hclge_promisc_param_init(struct hclge_promisc_param *param, bool en_uc,
-			      bool en_mc, bool en_bc, int vport_id)
+static void hclge_promisc_param_init(struct hclge_promisc_param *param,
+				     bool en_uc, bool en_mc, bool en_bc,
+				     int vport_id)
 {
 	if (!param)
 		return;
@@ -4658,12 +4660,21 @@ void hclge_promisc_param_init(struct hclge_promisc_param *param, bool en_uc,
 	param->vf_id = vport_id;
 }
 
+int hclge_set_vport_promisc_mode(struct hclge_vport *vport, bool en_uc_pmc,
+				 bool en_mc_pmc, bool en_bc_pmc)
+{
+	struct hclge_dev *hdev = vport->back;
+	struct hclge_promisc_param param;
+
+	hclge_promisc_param_init(&param, en_uc_pmc, en_mc_pmc, en_bc_pmc,
+				 vport->vport_id);
+	return hclge_cmd_set_promisc_mode(hdev, &param);
+}
+
 static int hclge_set_promisc_mode(struct hnae3_handle *handle, bool en_uc_pmc,
 				  bool en_mc_pmc)
 {
 	struct hclge_vport *vport = hclge_get_vport(handle);
-	struct hclge_dev *hdev = vport->back;
-	struct hclge_promisc_param param;
 	bool en_bc_pmc = true;
 
 	/* For revision 0x20, if broadcast promisc enabled, vlan filter is
@@ -4673,9 +4684,8 @@ static int hclge_set_promisc_mode(struct hnae3_handle *handle, bool en_uc_pmc,
 	if (handle->pdev->revision == 0x20)
 		en_bc_pmc = handle->netdev_flags & HNAE3_BPE ? true : false;
 
-	hclge_promisc_param_init(&param, en_uc_pmc, en_mc_pmc, en_bc_pmc,
-				 vport->vport_id);
-	return hclge_cmd_set_promisc_mode(hdev, &param);
+	return hclge_set_vport_promisc_mode(vport, en_uc_pmc, en_mc_pmc,
+					    en_bc_pmc);
 }
 
 static int hclge_get_fd_mode(struct hclge_dev *hdev, u8 *fd_mode)
@@ -9479,6 +9489,37 @@ static int hclge_reset_vport_spoofchk(struct hclge_dev *hdev)
 	return 0;
 }
 
+static int hclge_set_vf_trust(struct hnae3_handle *handle, int vf, bool enable)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	struct hclge_dev *hdev = vport->back;
+	u32 new_trusted = enable ? 1 : 0;
+	bool en_bc_pmc;
+	int ret;
+
+	vport = hclge_get_vf_vport(hdev, vf);
+	if (!vport)
+		return -EINVAL;
+
+	if (vport->vf_info.trusted == new_trusted)
+		return 0;
+
+	/* Disable promisc mode for VF if it is not trusted any more. */
+	if (!enable && vport->vf_info.promisc_enable) {
+		en_bc_pmc = hdev->pdev->revision != 0x20;
+		ret = hclge_set_vport_promisc_mode(vport, false, false,
+						   en_bc_pmc);
+		if (ret)
+			return ret;
+		vport->vf_info.promisc_enable = 0;
+		hclge_inform_vf_promisc_info(vport);
+	}
+
+	vport->vf_info.trusted = new_trusted;
+
+	return 0;
+}
+
 static void hclge_reset_vport_state(struct hclge_dev *hdev)
 {
 	struct hclge_vport *vport = hdev->vport;
@@ -10318,6 +10359,7 @@ static const struct hnae3_ae_ops hclge_ops = {
 	.get_vf_config = hclge_get_vf_config,
 	.set_vf_link_state = hclge_set_vf_link_state,
 	.set_vf_spoofchk = hclge_set_vf_spoofchk,
+	.set_vf_trust = hclge_set_vf_trust,
 };
 
 static struct hnae3_ae_algo ae_algo = {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 9483529..66e8833 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -889,6 +889,8 @@ struct hclge_vf_info {
 	int link_state;
 	u8 mac[ETH_ALEN];
 	u32 spoofchk;
+	u32 trusted;
+	u16 promisc_enable;
 };
 
 struct hclge_vport {
@@ -929,9 +931,8 @@ struct hclge_vport {
 	struct list_head vlan_list;     /* Store VF vlan table */
 };
 
-void hclge_promisc_param_init(struct hclge_promisc_param *param, bool en_uc,
-			      bool en_mc, bool en_bc, int vport_id);
-
+int hclge_set_vport_promisc_mode(struct hclge_vport *vport, bool en_uc_pmc,
+				 bool en_mc_pmc, bool en_bc_pmc);
 int hclge_add_uc_addr_common(struct hclge_vport *vport,
 			     const unsigned char *addr);
 int hclge_rm_uc_addr_common(struct hclge_vport *vport,
@@ -1000,4 +1001,5 @@ int hclge_query_bd_num_cmd_send(struct hclge_dev *hdev,
 				struct hclge_desc *desc);
 void hclge_report_hw_error(struct hclge_dev *hdev,
 			   enum hnae3_hw_error_type type);
+void hclge_inform_vf_promisc_info(struct hclge_vport *vport);
 #endif
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index cad7029..131b47b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -205,12 +205,38 @@ static int hclge_map_unmap_ring_to_vf_vector(struct hclge_vport *vport, bool en,
 static int hclge_set_vf_promisc_mode(struct hclge_vport *vport,
 				     struct hclge_mbx_vf_to_pf_cmd *req)
 {
-	bool en_bc = req->msg[1] ? true : false;
-	struct hclge_promisc_param param;
+#define HCLGE_MBX_BC_INDEX	1
+#define HCLGE_MBX_UC_INDEX	2
+#define HCLGE_MBX_MC_INDEX	3
 
-	/* vf is not allowed to enable unicast/multicast broadcast */
-	hclge_promisc_param_init(&param, false, false, en_bc, vport->vport_id);
-	return hclge_cmd_set_promisc_mode(vport->back, &param);
+	bool en_bc = req->msg[HCLGE_MBX_BC_INDEX] ? true : false;
+	bool en_uc = req->msg[HCLGE_MBX_UC_INDEX] ? true : false;
+	bool en_mc = req->msg[HCLGE_MBX_MC_INDEX] ? true : false;
+	int ret;
+
+	if (!vport->vf_info.trusted) {
+		en_uc = false;
+		en_mc = false;
+	}
+
+	ret = hclge_set_vport_promisc_mode(vport, en_uc, en_mc, en_bc);
+	if (req->mbx_need_resp)
+		hclge_gen_resp_to_vf(vport, req, ret, NULL, 0);
+
+	vport->vf_info.promisc_enable = (en_uc || en_mc) ? 1 : 0;
+
+	return ret;
+}
+
+void hclge_inform_vf_promisc_info(struct hclge_vport *vport)
+{
+	u8 dest_vfid = (u8)vport->vport_id;
+	u8 msg_data[2];
+
+	memcpy(&msg_data[0], &vport->vf_info.promisc_enable, sizeof(u16));
+
+	hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data),
+			   HCLGE_MBX_PUSH_PROMISC_INFO, dest_vfid);
 }
 
 static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 2b87b70..1732668 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -1105,6 +1105,7 @@ static int hclgevf_put_vector(struct hnae3_handle *handle, int vector)
 }
 
 static int hclgevf_cmd_set_promisc_mode(struct hclgevf_dev *hdev,
+					bool en_uc_pmc, bool en_mc_pmc,
 					bool en_bc_pmc)
 {
 	struct hclge_mbx_vf_to_pf_cmd *req;
@@ -1112,10 +1113,11 @@ static int hclgevf_cmd_set_promisc_mode(struct hclgevf_dev *hdev,
 	int ret;
 
 	req = (struct hclge_mbx_vf_to_pf_cmd *)desc.data;
-
 	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_VF_TO_PF, false);
 	req->msg[0] = HCLGE_MBX_SET_PROMISC_MODE;
 	req->msg[1] = en_bc_pmc ? 1 : 0;
+	req->msg[2] = en_uc_pmc ? 1 : 0;
+	req->msg[3] = en_mc_pmc ? 1 : 0;
 
 	ret = hclgevf_cmd_send(&hdev->hw, &desc, 1);
 	if (ret)
@@ -1125,9 +1127,17 @@ static int hclgevf_cmd_set_promisc_mode(struct hclgevf_dev *hdev,
 	return ret;
 }
 
-static int hclgevf_set_promisc_mode(struct hclgevf_dev *hdev, bool en_bc_pmc)
+static int hclgevf_set_promisc_mode(struct hnae3_handle *handle, bool en_uc_pmc,
+				    bool en_mc_pmc)
 {
-	return hclgevf_cmd_set_promisc_mode(hdev, en_bc_pmc);
+	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	struct pci_dev *pdev = hdev->pdev;
+	bool en_bc_pmc;
+
+	en_bc_pmc = pdev->revision != 0x20;
+
+	return hclgevf_cmd_set_promisc_mode(hdev, en_uc_pmc, en_mc_pmc,
+					    en_bc_pmc);
 }
 
 static int hclgevf_tqp_enable(struct hclgevf_dev *hdev, unsigned int tqp_id,
@@ -2626,12 +2636,6 @@ static int hclgevf_reset_hdev(struct hclgevf_dev *hdev)
 		return ret;
 	}
 
-	if (pdev->revision >= 0x21) {
-		ret = hclgevf_set_promisc_mode(hdev, true);
-		if (ret)
-			return ret;
-	}
-
 	dev_info(&hdev->pdev->dev, "Reset done\n");
 
 	return 0;
@@ -2706,17 +2710,6 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev)
 	if (ret)
 		goto err_config;
 
-	/* vf is not allowed to enable unicast/multicast promisc mode.
-	 * For revision 0x20, default to disable broadcast promisc mode,
-	 * firmware makes sure broadcast packets can be accepted.
-	 * For revision 0x21, default to enable broadcast promisc mode.
-	 */
-	if (pdev->revision >= 0x21) {
-		ret = hclgevf_set_promisc_mode(hdev, true);
-		if (ret)
-			goto err_config;
-	}
-
 	/* Initialize RSS for this VF */
 	ret = hclgevf_rss_init_hw(hdev);
 	if (ret) {
@@ -3130,6 +3123,7 @@ static const struct hnae3_ae_ops hclgevf_ops = {
 	.get_global_queue_id = hclgevf_get_qid_global,
 	.set_timer_task = hclgevf_set_timer_task,
 	.get_link_mode = hclgevf_get_link_mode,
+	.set_promisc_mode = hclgevf_set_promisc_mode,
 };
 
 static struct hnae3_ae_algo ae_algovf = {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
index a108191..72bacf8 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
@@ -205,6 +205,7 @@ void hclgevf_mbx_handler(struct hclgevf_dev *hdev)
 		case HCLGE_MBX_ASSERTING_RESET:
 		case HCLGE_MBX_LINK_STAT_MODE:
 		case HCLGE_MBX_PUSH_VLAN_INFO:
+		case HCLGE_MBX_PUSH_PROMISC_INFO:
 			/* set this mbx event as pending. This is required as we
 			 * might loose interrupt event when mbx task is busy
 			 * handling. This shall be cleared when mbx task just
@@ -248,6 +249,14 @@ void hclgevf_mbx_handler(struct hclgevf_dev *hdev)
 			  crq->next_to_use);
 }
 
+static void hclgevf_parse_promisc_info(struct hclgevf_dev *hdev,
+				       u16 promisc_info)
+{
+	if (!promisc_info)
+		dev_info(&hdev->pdev->dev,
+			 "Promisc mode is closed by host for being untrusted.\n");
+}
+
 void hclgevf_mbx_async_handler(struct hclgevf_dev *hdev)
 {
 	enum hnae3_reset_type reset_type;
@@ -313,6 +322,9 @@ void hclgevf_mbx_async_handler(struct hclgevf_dev *hdev)
 			hclgevf_update_port_base_vlan_info(hdev, state,
 							   (u8 *)vlan_info, 8);
 			break;
+		case HCLGE_MBX_PUSH_PROMISC_INFO:
+			hclgevf_parse_promisc_info(hdev, msg_q[1]);
+			break;
 		default:
 			dev_err(&hdev->pdev->dev,
 				"fetched unsupported(%d) message from arq\n",
-- 
2.7.4

[PATCH net-next 4/6] net: hns3: add support for configuring bandwidth of VF on the host

[Huazhong Tan]

From: Yonglong Liu <liuyonglong@huawei.com>

This patch adds support for configuring bandwidth of VF on the host
for HNS3 drivers.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hnae3.h        |   4 +
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c    |  14 ++-
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h |   2 +-
 .../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c |  79 +++++++++++++
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 130 +++++++++++++++++++++
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h    |   2 +
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c  |  43 +++++++
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h  |   8 ++
 8 files changed, 280 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index ef56f37..1202bbc 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -373,6 +373,8 @@ struct hnae3_ae_dev {
  * set_vf_trust
  *   Enable/disable trust for specified vf, if the vf being trusted, then
  *   it can enable promisc mode
+ * set_vf_rate
+ *   Set the max tx rate of specified vf.
  */
 struct hnae3_ae_ops {
 	int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev);
@@ -545,6 +547,8 @@ struct hnae3_ae_ops {
 	int (*set_vf_spoofchk)(struct hnae3_handle *handle, int vf,
 			       bool enable);
 	int (*set_vf_trust)(struct hnae3_handle *handle, int vf, bool enable);
+	int (*set_vf_rate)(struct hnae3_handle *handle, int vf,
+			   int min_tx_rate, int max_tx_rate, bool force);
 };
 
 struct hnae3_dcb_ops {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 5c50555..5a8c316 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1850,6 +1850,18 @@ static int hns3_nic_set_vf_link_state(struct net_device *ndev, int vf,
 	return h->ae_algo->ops->set_vf_link_state(h, vf, link_state);
 }
 
+static int hns3_nic_set_vf_rate(struct net_device *ndev, int vf,
+				int min_tx_rate, int max_tx_rate)
+{
+	struct hnae3_handle *h = hns3_get_handle(ndev);
+
+	if (!h->ae_algo->ops->set_vf_rate)
+		return -EOPNOTSUPP;
+
+	return h->ae_algo->ops->set_vf_rate(h, vf, min_tx_rate, max_tx_rate,
+					    false);
+}
+
 static const struct net_device_ops hns3_nic_netdev_ops = {
 	.ndo_open		= hns3_nic_net_open,
 	.ndo_stop		= hns3_nic_net_stop,
@@ -1872,7 +1884,7 @@ static const struct net_device_ops hns3_nic_netdev_ops = {
 #endif
 	.ndo_get_vf_config	= hns3_nic_get_vf_config,
 	.ndo_set_vf_link_state	= hns3_nic_set_vf_link_state,
-
+	.ndo_set_vf_rate	= hns3_nic_set_vf_rate,
 };
 
 bool hns3_is_phys_func(struct pci_dev *pdev)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index 265695a..3578832 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -244,7 +244,7 @@ enum hclge_opcode_type {
 	/* QCN commands */
 	HCLGE_OPC_QCN_MOD_CFG		= 0x1A01,
 	HCLGE_OPC_QCN_GRP_TMPLT_CFG	= 0x1A02,
-	HCLGE_OPC_QCN_SHAPPING_IR_CFG	= 0x1A03,
+	HCLGE_OPC_QCN_SHAPPING_CFG	= 0x1A03,
 	HCLGE_OPC_QCN_SHAPPING_BS_CFG	= 0x1A04,
 	HCLGE_OPC_QCN_QSET_LINK_CFG	= 0x1A05,
 	HCLGE_OPC_QCN_RP_STATUS_GET	= 0x1A06,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index d0128d7..0ccc8e7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -1110,6 +1110,82 @@ static void hclge_dbg_dump_mac_tnl_status(struct hclge_dev *hdev)
 	}
 }
 
+static void hclge_dbg_dump_qs_shaper_single(struct hclge_dev *hdev, u16 qsid)
+{
+	struct hclge_qs_shapping_cmd *shap_cfg_cmd;
+	u8 ir_u, ir_b, ir_s, bs_b, bs_s;
+	struct hclge_desc desc;
+	u32 shapping_para;
+	int ret;
+
+	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_QCN_SHAPPING_CFG, true);
+
+	shap_cfg_cmd = (struct hclge_qs_shapping_cmd *)desc.data;
+	shap_cfg_cmd->qs_id = cpu_to_le16(qsid);
+
+	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+	if (ret) {
+		dev_err(&hdev->pdev->dev,
+			"qs%u failed to get tx_rate, ret=%d\n",
+			qsid, ret);
+		return;
+	}
+
+	shapping_para = le32_to_cpu(shap_cfg_cmd->qs_shapping_para);
+	ir_b = hclge_tm_get_field(shapping_para, IR_B);
+	ir_u = hclge_tm_get_field(shapping_para, IR_U);
+	ir_s = hclge_tm_get_field(shapping_para, IR_S);
+	bs_b = hclge_tm_get_field(shapping_para, BS_B);
+	bs_s = hclge_tm_get_field(shapping_para, BS_S);
+
+	dev_info(&hdev->pdev->dev,
+		 "qs%u ir_b:%u, ir_u:%u, ir_s:%u, bs_b:%u, bs_s:%u\n",
+		 qsid, ir_b, ir_u, ir_s, bs_b, bs_s);
+}
+
+static void hclge_dbg_dump_qs_shaper_all(struct hclge_dev *hdev)
+{
+	struct hnae3_knic_private_info *kinfo;
+	struct hclge_vport *vport;
+	int vport_id, i;
+
+	for (vport_id = 0; vport_id <= pci_num_vf(hdev->pdev); vport_id++) {
+		vport = &hdev->vport[vport_id];
+		kinfo = &vport->nic.kinfo;
+
+		dev_info(&hdev->pdev->dev, "qs cfg of vport%d:\n", vport_id);
+
+		for (i = 0; i < kinfo->num_tc; i++) {
+			u16 qsid = vport->qs_offset + i;
+
+			hclge_dbg_dump_qs_shaper_single(hdev, qsid);
+		}
+	}
+}
+
+static void hclge_dbg_dump_qs_shaper(struct hclge_dev *hdev,
+				     const char *cmd_buf)
+{
+#define HCLGE_MAX_QSET_NUM 1024
+
+	u16 qsid;
+	int ret;
+
+	ret = kstrtou16(cmd_buf, 0, &qsid);
+	if (ret) {
+		hclge_dbg_dump_qs_shaper_all(hdev);
+		return;
+	}
+
+	if (qsid >= HCLGE_MAX_QSET_NUM) {
+		dev_err(&hdev->pdev->dev, "qsid(%u) out of range[0-1023]\n",
+			qsid);
+		return;
+	}
+
+	hclge_dbg_dump_qs_shaper_single(hdev, qsid);
+}
+
 int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf)
 {
 #define DUMP_REG	"dump reg"
@@ -1145,6 +1221,9 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf)
 					  &cmd_buf[sizeof("dump ncl_config")]);
 	} else if (strncmp(cmd_buf, "dump mac tnl status", 19) == 0) {
 		hclge_dbg_dump_mac_tnl_status(hdev);
+	} else if (strncmp(cmd_buf, "dump qs shaper", 14) == 0) {
+		hclge_dbg_dump_qs_shaper(hdev,
+					 &cmd_buf[sizeof("dump qs shaper")]);
 	} else {
 		dev_info(&hdev->pdev->dev, "unknown command\n");
 		return -EINVAL;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index c63f723..b88c0aa 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1184,6 +1184,35 @@ static void hclge_parse_link_mode(struct hclge_dev *hdev, u8 speed_ability)
 		hclge_parse_backplane_link_mode(hdev, speed_ability);
 }
 
+static u32 hclge_get_max_speed(u8 speed_ability)
+{
+	if (speed_ability & HCLGE_SUPPORT_100G_BIT)
+		return HCLGE_MAC_SPEED_100G;
+
+	if (speed_ability & HCLGE_SUPPORT_50G_BIT)
+		return HCLGE_MAC_SPEED_50G;
+
+	if (speed_ability & HCLGE_SUPPORT_40G_BIT)
+		return HCLGE_MAC_SPEED_40G;
+
+	if (speed_ability & HCLGE_SUPPORT_25G_BIT)
+		return HCLGE_MAC_SPEED_25G;
+
+	if (speed_ability & HCLGE_SUPPORT_10G_BIT)
+		return HCLGE_MAC_SPEED_10G;
+
+	if (speed_ability & HCLGE_SUPPORT_1G_BIT)
+		return HCLGE_MAC_SPEED_1G;
+
+	if (speed_ability & HCLGE_SUPPORT_100M_BIT)
+		return HCLGE_MAC_SPEED_100M;
+
+	if (speed_ability & HCLGE_SUPPORT_10M_BIT)
+		return HCLGE_MAC_SPEED_10M;
+
+	return HCLGE_MAC_SPEED_1G;
+}
+
 static void hclge_parse_cfg(struct hclge_cfg *cfg, struct hclge_desc *desc)
 {
 	struct hclge_cfg_param_cmd *req;
@@ -1354,6 +1383,8 @@ static int hclge_configure(struct hclge_dev *hdev)
 
 	hclge_parse_link_mode(hdev, cfg.speed_ability);
 
+	hdev->hw.mac.max_speed = hclge_get_max_speed(cfg.speed_ability);
+
 	if ((hdev->tc_max > HNAE3_MAX_TC) ||
 	    (hdev->tc_max < 1)) {
 		dev_warn(&hdev->pdev->dev, "TC num = %d.\n",
@@ -2890,6 +2921,8 @@ static int hclge_get_vf_config(struct hnae3_handle *handle, int vf,
 	ivf->linkstate = vport->vf_info.link_state;
 	ivf->spoofchk = vport->vf_info.spoofchk;
 	ivf->trusted = vport->vf_info.trusted;
+	ivf->min_tx_rate = 0;
+	ivf->max_tx_rate = vport->vf_info.max_tx_rate;
 	ether_addr_copy(ivf->mac, vport->vf_info.mac);
 
 	return 0;
@@ -9520,6 +9553,97 @@ static int hclge_set_vf_trust(struct hnae3_handle *handle, int vf, bool enable)
 	return 0;
 }
 
+static void hclge_reset_vf_rate(struct hclge_dev *hdev)
+{
+	int ret;
+	int vf;
+
+	/* reset vf rate to default value */
+	for (vf = HCLGE_VF_VPORT_START_NUM; vf < hdev->num_alloc_vport; vf++) {
+		struct hclge_vport *vport = &hdev->vport[vf];
+
+		vport->vf_info.max_tx_rate = 0;
+		ret = hclge_tm_qs_shaper_cfg(vport, vport->vf_info.max_tx_rate);
+		if (ret)
+			dev_err(&hdev->pdev->dev,
+				"vf%d failed to reset to default, ret=%d\n",
+				vf - HCLGE_VF_VPORT_START_NUM, ret);
+	}
+}
+
+static int hclge_vf_rate_param_check(struct hclge_dev *hdev, int vf,
+				     int min_tx_rate, int max_tx_rate)
+{
+	if (min_tx_rate != 0 ||
+	    max_tx_rate < 0 || max_tx_rate > hdev->hw.mac.max_speed) {
+		dev_err(&hdev->pdev->dev,
+			"min_tx_rate:%d [0], max_tx_rate:%d [0, %u]\n",
+			min_tx_rate, max_tx_rate, hdev->hw.mac.max_speed);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int hclge_set_vf_rate(struct hnae3_handle *handle, int vf,
+			     int min_tx_rate, int max_tx_rate, bool force)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	struct hclge_dev *hdev = vport->back;
+	int ret;
+
+	ret = hclge_vf_rate_param_check(hdev, vf, min_tx_rate, max_tx_rate);
+	if (ret)
+		return ret;
+
+	vport = hclge_get_vf_vport(hdev, vf);
+	if (!vport)
+		return -EINVAL;
+
+	if (!force && max_tx_rate == vport->vf_info.max_tx_rate)
+		return 0;
+
+	ret = hclge_tm_qs_shaper_cfg(vport, max_tx_rate);
+	if (ret)
+		return ret;
+
+	vport->vf_info.max_tx_rate = max_tx_rate;
+
+	return 0;
+}
+
+static int hclge_resume_vf_rate(struct hclge_dev *hdev)
+{
+	struct hnae3_handle *handle = &hdev->vport->nic;
+	struct hclge_vport *vport;
+	int ret;
+	int vf;
+
+	/* resume the vf max_tx_rate after reset */
+	for (vf = 0; vf < pci_num_vf(hdev->pdev); vf++) {
+		vport = hclge_get_vf_vport(hdev, vf);
+		if (!vport)
+			return -EINVAL;
+
+		/* zero means max rate, after reset, firmware already set it to
+		 * max rate, so just continue.
+		 */
+		if (!vport->vf_info.max_tx_rate)
+			continue;
+
+		ret = hclge_set_vf_rate(handle, vf, 0,
+					vport->vf_info.max_tx_rate, true);
+		if (ret) {
+			dev_err(&hdev->pdev->dev,
+				"vf%d failed to resume tx_rate:%u, ret=%d\n",
+				vf, vport->vf_info.max_tx_rate, ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
 static void hclge_reset_vport_state(struct hclge_dev *hdev)
 {
 	struct hclge_vport *vport = hdev->vport;
@@ -9623,6 +9747,10 @@ static int hclge_reset_ae_dev(struct hnae3_ae_dev *ae_dev)
 	if (ret)
 		return ret;
 
+	ret = hclge_resume_vf_rate(hdev);
+	if (ret)
+		return ret;
+
 	dev_info(&pdev->dev, "Reset done, %s driver initialization finished.\n",
 		 HCLGE_DRIVER_NAME);
 
@@ -9634,6 +9762,7 @@ static void hclge_uninit_ae_dev(struct hnae3_ae_dev *ae_dev)
 	struct hclge_dev *hdev = ae_dev->priv;
 	struct hclge_mac *mac = &hdev->hw.mac;
 
+	hclge_reset_vf_rate(hdev);
 	hclge_misc_affinity_teardown(hdev);
 	hclge_state_uninit(hdev);
 
@@ -10360,6 +10489,7 @@ static const struct hnae3_ae_ops hclge_ops = {
 	.set_vf_link_state = hclge_set_vf_link_state,
 	.set_vf_spoofchk = hclge_set_vf_spoofchk,
 	.set_vf_trust = hclge_set_vf_trust,
+	.set_vf_rate = hclge_set_vf_rate,
 };
 
 static struct hnae3_ae_algo ae_algo = {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 66e8833..3153a96 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -258,6 +258,7 @@ struct hclge_mac {
 	u8 support_autoneg;
 	u8 speed_type;	/* 0: sfp speed, 1: active speed */
 	u32 speed;
+	u32 max_speed;
 	u32 speed_ability; /* speed ability supported by current media */
 	u32 module_type; /* sub media type, e.g. kr/cr/sr/lr */
 	u32 fec_mode; /* active fec mode */
@@ -889,6 +890,7 @@ struct hclge_vf_info {
 	int link_state;
 	u8 mac[ETH_ALEN];
 	u32 spoofchk;
+	u32 max_tx_rate;
 	u32 trusted;
 	u16 promisc_enable;
 };
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 5cce9b7..0934954 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -511,6 +511,49 @@ static int hclge_tm_qs_bp_cfg(struct hclge_dev *hdev, u8 tc, u8 grp_id,
 	return hclge_cmd_send(&hdev->hw, &desc, 1);
 }
 
+int hclge_tm_qs_shaper_cfg(struct hclge_vport *vport, int max_tx_rate)
+{
+	struct hnae3_knic_private_info *kinfo = &vport->nic.kinfo;
+	struct hclge_qs_shapping_cmd *shap_cfg_cmd;
+	struct hclge_dev *hdev = vport->back;
+	struct hclge_desc desc;
+	u8 ir_b, ir_u, ir_s;
+	u32 shaper_para;
+	int ret, i;
+
+	if (!max_tx_rate)
+		max_tx_rate = HCLGE_ETHER_MAX_RATE;
+
+	ret = hclge_shaper_para_calc(max_tx_rate, HCLGE_SHAPER_LVL_QSET,
+				     &ir_b, &ir_u, &ir_s);
+	if (ret)
+		return ret;
+
+	shaper_para = hclge_tm_get_shapping_para(ir_b, ir_u, ir_s,
+						 HCLGE_SHAPER_BS_U_DEF,
+						 HCLGE_SHAPER_BS_S_DEF);
+
+	for (i = 0; i < kinfo->num_tc; i++) {
+		hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_QCN_SHAPPING_CFG,
+					   false);
+
+		shap_cfg_cmd = (struct hclge_qs_shapping_cmd *)desc.data;
+		shap_cfg_cmd->qs_id = cpu_to_le16(vport->qs_offset + i);
+		shap_cfg_cmd->qs_shapping_para = cpu_to_le32(shaper_para);
+
+		ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+		if (ret) {
+			dev_err(&hdev->pdev->dev,
+				"vf%d, qs%u failed to set tx_rate:%d, ret=%d\n",
+				vport->vport_id, shap_cfg_cmd->qs_id,
+				max_tx_rate, ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
 static void hclge_tm_vport_tc_info_update(struct hclge_vport *vport)
 {
 	struct hnae3_knic_private_info *kinfo = &vport->nic.kinfo;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
index 8186109..95ef6e1 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
@@ -96,6 +96,12 @@ struct hclge_pg_shapping_cmd {
 	__le32 pg_shapping_para;
 };
 
+struct hclge_qs_shapping_cmd {
+	__le16 qs_id;
+	u8 rsvd[2];
+	__le32 qs_shapping_para;
+};
+
 #define HCLGE_BP_GRP_NUM		32
 #define HCLGE_BP_SUB_GRP_ID_S		0
 #define HCLGE_BP_SUB_GRP_ID_M		GENMASK(4, 0)
@@ -154,4 +160,6 @@ int hclge_mac_pause_en_cfg(struct hclge_dev *hdev, bool tx, bool rx);
 int hclge_pause_addr_cfg(struct hclge_dev *hdev, const u8 *mac_addr);
 int hclge_pfc_rx_stats_get(struct hclge_dev *hdev, u64 *stats);
 int hclge_pfc_tx_stats_get(struct hclge_dev *hdev, u64 *stats);
+int hclge_tm_qs_shaper_cfg(struct hclge_vport *vport, int max_tx_rate);
+
 #endif
-- 
2.7.4

[PATCH net-next 5/6] net: hns3: add support for configuring VF MAC from the host

[Huazhong Tan]

This patch adds support of configuring VF MAC from the host
for the HNS3 driver.

BTW, the parameter init in the hns3_init_mac_addr is
unnecessary now, since the MAC address will not read from
NCL_CONFIG when doing reset, so it should be removed,
otherwise it will affect VF's MAC address initialization.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hnae3.h        |  3 ++
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c    | 43 ++++++++++++---
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 62 ++++++++++++++++++++++
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 29 ++++++++++
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c  | 28 +++++++++-
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h  |  1 +
 6 files changed, 158 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 1202bbc..c15d7fc 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -375,6 +375,8 @@ struct hnae3_ae_dev {
  *   it can enable promisc mode
  * set_vf_rate
  *   Set the max tx rate of specified vf.
+ * set_vf_mac
+ *   Configure the default MAC for specified VF
  */
 struct hnae3_ae_ops {
 	int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev);
@@ -549,6 +551,7 @@ struct hnae3_ae_ops {
 	int (*set_vf_trust)(struct hnae3_handle *handle, int vf, bool enable);
 	int (*set_vf_rate)(struct hnae3_handle *handle, int vf,
 			   int min_tx_rate, int max_tx_rate, bool force);
+	int (*set_vf_mac)(struct hnae3_handle *handle, int vf, u8 *p);
 };
 
 struct hnae3_dcb_ops {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 5a8c316..4e304b4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1413,6 +1413,16 @@ static int hns3_nic_net_set_mac_address(struct net_device *netdev, void *p)
 		return 0;
 	}
 
+	/* For VF device, if there is a perm_addr, then the user will not
+	 * be allowed to change the address.
+	 */
+	if (!hns3_is_phys_func(h->pdev) &&
+	    !is_zero_ether_addr(netdev->perm_addr)) {
+		netdev_err(netdev, "has permanent MAC %pM, user MAC %pM not allow\n",
+			   netdev->perm_addr, mac_addr->sa_data);
+		return -EPERM;
+	}
+
 	ret = h->ae_algo->ops->set_mac_addr(h, mac_addr->sa_data, false);
 	if (ret) {
 		netdev_err(netdev, "set_mac_address fail, ret=%d!\n", ret);
@@ -1862,6 +1872,23 @@ static int hns3_nic_set_vf_rate(struct net_device *ndev, int vf,
 					    false);
 }
 
+static int hns3_nic_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
+{
+	struct hnae3_handle *h = hns3_get_handle(netdev);
+
+	if (!h->ae_algo->ops->set_vf_mac)
+		return -EOPNOTSUPP;
+
+	if (is_multicast_ether_addr(mac)) {
+		netdev_err(netdev,
+			   "Invalid MAC:%pM specified. Could not set MAC\n",
+			   mac);
+		return -EINVAL;
+	}
+
+	return h->ae_algo->ops->set_vf_mac(h, vf_id, mac);
+}
+
 static const struct net_device_ops hns3_nic_netdev_ops = {
 	.ndo_open		= hns3_nic_net_open,
 	.ndo_stop		= hns3_nic_net_stop,
@@ -1885,6 +1912,7 @@ static const struct net_device_ops hns3_nic_netdev_ops = {
 	.ndo_get_vf_config	= hns3_nic_get_vf_config,
 	.ndo_set_vf_link_state	= hns3_nic_set_vf_link_state,
 	.ndo_set_vf_rate	= hns3_nic_set_vf_rate,
+	.ndo_set_vf_mac		= hns3_nic_set_vf_mac,
 };
 
 bool hns3_is_phys_func(struct pci_dev *pdev)
@@ -3804,23 +3832,24 @@ int hns3_uninit_all_ring(struct hns3_nic_priv *priv)
 }
 
 /* Set mac addr if it is configured. or leave it to the AE driver */
-static int hns3_init_mac_addr(struct net_device *netdev, bool init)
+static int hns3_init_mac_addr(struct net_device *netdev)
 {
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	struct hnae3_handle *h = priv->ae_handle;
 	u8 mac_addr_temp[ETH_ALEN];
 	int ret = 0;
 
-	if (h->ae_algo->ops->get_mac_addr && init) {
+	if (h->ae_algo->ops->get_mac_addr)
 		h->ae_algo->ops->get_mac_addr(h, mac_addr_temp);
-		ether_addr_copy(netdev->dev_addr, mac_addr_temp);
-	}
 
 	/* Check if the MAC address is valid, if not get a random one */
-	if (!is_valid_ether_addr(netdev->dev_addr)) {
+	if (!is_valid_ether_addr(mac_addr_temp)) {
 		eth_hw_addr_random(netdev);
 		dev_warn(priv->dev, "using random MAC address %pM\n",
 			 netdev->dev_addr);
+	} else {
+		ether_addr_copy(netdev->dev_addr, mac_addr_temp);
+		ether_addr_copy(netdev->perm_addr, mac_addr_temp);
 	}
 
 	if (h->ae_algo->ops->set_mac_addr)
@@ -3924,7 +3953,7 @@ static int hns3_client_init(struct hnae3_handle *handle)
 	handle->kinfo.netdev = netdev;
 	handle->priv = (void *)priv;
 
-	hns3_init_mac_addr(netdev, true);
+	hns3_init_mac_addr(netdev);
 
 	hns3_set_default_feature(netdev);
 
@@ -4392,7 +4421,7 @@ static int hns3_reset_notify_restore_enet(struct hnae3_handle *handle)
 	bool vlan_filter_enable;
 	int ret;
 
-	ret = hns3_init_mac_addr(netdev, false);
+	ret = hns3_init_mac_addr(netdev);
 	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 b88c0aa..8a3a4fd 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -7490,6 +7490,67 @@ static int hclge_get_mac_ethertype_cmd_status(struct hclge_dev *hdev,
 	return return_status;
 }
 
+static bool hclge_check_vf_mac_exist(struct hclge_vport *vport, int vf_idx,
+				     u8 *mac_addr)
+{
+	struct hclge_mac_vlan_tbl_entry_cmd req;
+	struct hclge_dev *hdev = vport->back;
+	struct hclge_desc desc;
+	u16 egress_port = 0;
+	int i;
+
+	if (is_zero_ether_addr(mac_addr))
+		return false;
+
+	memset(&req, 0, sizeof(req));
+	hnae3_set_field(egress_port, HCLGE_MAC_EPORT_VFID_M,
+			HCLGE_MAC_EPORT_VFID_S, vport->vport_id);
+	req.egress_port = cpu_to_le16(egress_port);
+	hclge_prepare_mac_addr(&req, mac_addr, false);
+
+	if (hclge_lookup_mac_vlan_tbl(vport, &req, &desc, false) != -ENOENT)
+		return true;
+
+	vf_idx += HCLGE_VF_VPORT_START_NUM;
+	for (i = hdev->num_vmdq_vport + 1; i < hdev->num_alloc_vport; i++)
+		if (i != vf_idx &&
+		    ether_addr_equal(mac_addr, hdev->vport[i].vf_info.mac))
+			return true;
+
+	return false;
+}
+
+static int hclge_set_vf_mac(struct hnae3_handle *handle, int vf,
+			    u8 *mac_addr)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	struct hclge_dev *hdev = vport->back;
+
+	vport = hclge_get_vf_vport(hdev, vf);
+	if (!vport)
+		return -EINVAL;
+
+	if (ether_addr_equal(mac_addr, vport->vf_info.mac)) {
+		dev_info(&hdev->pdev->dev,
+			 "Specified MAC(=%pM) is same as before, no change committed!\n",
+			 mac_addr);
+		return 0;
+	}
+
+	if (hclge_check_vf_mac_exist(vport, vf, mac_addr)) {
+		dev_err(&hdev->pdev->dev, "Specified MAC(=%pM) exists!\n",
+			mac_addr);
+		return -EEXIST;
+	}
+
+	ether_addr_copy(vport->vf_info.mac, mac_addr);
+	dev_info(&hdev->pdev->dev,
+		 "MAC of VF %d has been set to %pM, and it will be reinitialized!\n",
+		 vf, mac_addr);
+
+	return hclge_inform_reset_assert_to_vf(vport);
+}
+
 static int hclge_add_mgr_tbl(struct hclge_dev *hdev,
 			     const struct hclge_mac_mgr_tbl_entry_cmd *req)
 {
@@ -10490,6 +10551,7 @@ static const struct hnae3_ae_ops hclge_ops = {
 	.set_vf_spoofchk = hclge_set_vf_spoofchk,
 	.set_vf_trust = hclge_set_vf_trust,
 	.set_vf_rate = hclge_set_vf_rate,
+	.set_vf_mac = hclge_set_vf_mac,
 };
 
 static struct hnae3_ae_algo ae_algo = {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index 131b47b..97463e11 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -249,6 +249,20 @@ static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport,
 	if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_UC_MODIFY) {
 		const u8 *old_addr = (const u8 *)(&mbx_req->msg[8]);
 
+		/* If VF MAC has been configured by the host then it
+		 * cannot be overridden by the MAC specified by the VM.
+		 */
+		if (!is_zero_ether_addr(vport->vf_info.mac) &&
+		    !ether_addr_equal(mac_addr, vport->vf_info.mac)) {
+			status = -EPERM;
+			goto out;
+		}
+
+		if (!is_valid_ether_addr(mac_addr)) {
+			status = -EINVAL;
+			goto out;
+		}
+
 		hclge_rm_uc_addr_common(vport, old_addr);
 		status = hclge_add_uc_addr_common(vport, mac_addr);
 		if (status) {
@@ -276,6 +290,7 @@ static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport,
 		return -EIO;
 	}
 
+out:
 	if (mbx_req->mbx_need_resp & HCLGE_MBX_NEED_RESP_BIT)
 		hclge_gen_resp_to_vf(vport, mbx_req, status, NULL, 0);
 
@@ -427,6 +442,13 @@ static int hclge_get_vf_queue_info(struct hclge_vport *vport,
 				    HCLGE_TQPS_RSS_INFO_LEN);
 }
 
+static int hclge_get_vf_mac_addr(struct hclge_vport *vport,
+				 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+{
+	return hclge_gen_resp_to_vf(vport, mbx_req, 0, vport->vf_info.mac,
+				    ETH_ALEN);
+}
+
 static int hclge_get_vf_queue_depth(struct hclge_vport *vport,
 				    struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 				    bool gen_resp)
@@ -793,6 +815,13 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 		case HCLGE_MBX_PUSH_LINK_STATUS:
 			hclge_handle_link_change_event(hdev, req);
 			break;
+		case HCLGE_MBX_GET_MAC_ADDR:
+			ret = hclge_get_vf_mac_addr(vport, req);
+			if (ret)
+				dev_err(&hdev->pdev->dev,
+					"PF failed(%d) to get MAC for VF\n",
+					ret);
+			break;
 		case HCLGE_MBX_NCSI_ERROR:
 			hclge_handle_ncsi_error(hdev);
 			break;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 1732668..9c8fd97 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -1176,11 +1176,37 @@ static void hclgevf_reset_tqp_stats(struct hnae3_handle *handle)
 	}
 }
 
+static int hclgevf_get_host_mac_addr(struct hclgevf_dev *hdev, u8 *p)
+{
+	u8 host_mac[ETH_ALEN];
+	int status;
+
+	status = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_MAC_ADDR, 0, NULL, 0,
+				      true, host_mac, ETH_ALEN);
+	if (status) {
+		dev_err(&hdev->pdev->dev,
+			"fail to get VF MAC from host %d", status);
+		return status;
+	}
+
+	ether_addr_copy(p, host_mac);
+
+	return 0;
+}
+
 static void hclgevf_get_mac_addr(struct hnae3_handle *handle, u8 *p)
 {
 	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	u8 host_mac_addr[ETH_ALEN];
 
-	ether_addr_copy(p, hdev->hw.mac.mac_addr);
+	if (hclgevf_get_host_mac_addr(hdev, host_mac_addr))
+		return;
+
+	hdev->has_pf_mac = !is_zero_ether_addr(host_mac_addr);
+	if (hdev->has_pf_mac)
+		ether_addr_copy(p, host_mac_addr);
+	else
+		ether_addr_copy(p, hdev->hw.mac.mac_addr);
 }
 
 static int hclgevf_set_mac_addr(struct hnae3_handle *handle, void *p,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
index bdde3af..ed83940 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
@@ -266,6 +266,7 @@ struct hclgevf_dev {
 	u16 num_tx_desc;	/* desc num of per tx queue */
 	u16 num_rx_desc;	/* desc num of per rx queue */
 	u8 hw_tc_map;
+	u8 has_pf_mac;
 
 	u16 num_msi;
 	u16 num_msi_left;
-- 
2.7.4

[PATCH net-next 6/6] net: hns3: support tx-scatter-gather-fraglist feature

[Huazhong Tan]

From: Yunsheng Lin <linyunsheng@huawei.com>

The hardware supports up to 8 TX BD for non-tso skb and up to
63 TX BD for TSO skb. Currently, the hns3 driver supports RX skb
with fraglist when HW GRO is enabled, when the stack forwards a
RX skb with fraglist, the stack need to linearize the skb before
sending to other interface without TX fraglist support.

This patch adds support for TX fraglist. The performance increases
from 1 GByte to 1.5 GByte for one iperf TCP stream during
forwarding test after this patch. BTW, the minimum BD number of
ring should be updated to 72 for supporting TX fraglist.

This patch also changes the error handling of some function that
called by hns3_fill_desc, which returns BD num when there is no
error, change some macro to more meaningful name.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 249 +++++++++++++++---------
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.h |  12 +-
 2 files changed, 168 insertions(+), 93 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 4e304b4..6e0b261 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -681,7 +681,7 @@ static int hns3_set_tso(struct sk_buff *skb, u32 *paylen,
 		return 0;
 
 	ret = skb_cow_head(skb, 0);
-	if (unlikely(ret))
+	if (unlikely(ret < 0))
 		return ret;
 
 	l3.hdr = skb_network_header(skb);
@@ -962,14 +962,6 @@ static int hns3_set_l2l3l4(struct sk_buff *skb, u8 ol4_proto,
 	return 0;
 }
 
-static void hns3_set_txbd_baseinfo(u16 *bdtp_fe_sc_vld_ra_ri, int frag_end)
-{
-	/* Config bd buffer end */
-	if (!!frag_end)
-		hns3_set_field(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_FE_B, 1U);
-	hns3_set_field(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_VLD_B, 1U);
-}
-
 static int hns3_handle_vtags(struct hns3_enet_ring *tx_ring,
 			     struct sk_buff *skb)
 {
@@ -1062,7 +1054,7 @@ static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
 		skb_reset_mac_len(skb);
 
 		ret = hns3_get_l4_protocol(skb, &ol4_proto, &il4_proto);
-		if (unlikely(ret)) {
+		if (unlikely(ret < 0)) {
 			u64_stats_update_begin(&ring->syncp);
 			ring->stats.tx_l4_proto_err++;
 			u64_stats_update_end(&ring->syncp);
@@ -1072,7 +1064,7 @@ static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
 		ret = hns3_set_l2l3l4(skb, ol4_proto, il4_proto,
 				      &type_cs_vlan_tso,
 				      &ol_type_vlan_len_msec);
-		if (unlikely(ret)) {
+		if (unlikely(ret < 0)) {
 			u64_stats_update_begin(&ring->syncp);
 			ring->stats.tx_l2l3l4_err++;
 			u64_stats_update_end(&ring->syncp);
@@ -1081,7 +1073,7 @@ static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
 
 		ret = hns3_set_tso(skb, &paylen, &mss,
 				   &type_cs_vlan_tso);
-		if (unlikely(ret)) {
+		if (unlikely(ret < 0)) {
 			u64_stats_update_begin(&ring->syncp);
 			ring->stats.tx_tso_err++;
 			u64_stats_update_end(&ring->syncp);
@@ -1102,9 +1094,10 @@ static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
 }
 
 static int hns3_fill_desc(struct hns3_enet_ring *ring, void *priv,
-			  unsigned int size, int frag_end,
-			  enum hns_desc_type type)
+			  unsigned int size, enum hns_desc_type type)
 {
+#define HNS3_LIKELY_BD_NUM	1
+
 	struct hns3_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_use];
 	struct hns3_desc *desc = &ring->desc[ring->next_to_use];
 	struct device *dev = ring_to_dev(ring);
@@ -1118,7 +1111,7 @@ static int hns3_fill_desc(struct hns3_enet_ring *ring, void *priv,
 		int ret;
 
 		ret = hns3_fill_skb_desc(ring, skb, desc);
-		if (unlikely(ret))
+		if (unlikely(ret < 0))
 			return ret;
 
 		dma = dma_map_single(dev, skb->data, size, DMA_TO_DEVICE);
@@ -1137,19 +1130,16 @@ static int hns3_fill_desc(struct hns3_enet_ring *ring, void *priv,
 	desc_cb->length = size;
 
 	if (likely(size <= HNS3_MAX_BD_SIZE)) {
-		u16 bdtp_fe_sc_vld_ra_ri = 0;
-
 		desc_cb->priv = priv;
 		desc_cb->dma = dma;
 		desc_cb->type = type;
 		desc->addr = cpu_to_le64(dma);
 		desc->tx.send_size = cpu_to_le16(size);
-		hns3_set_txbd_baseinfo(&bdtp_fe_sc_vld_ra_ri, frag_end);
 		desc->tx.bdtp_fe_sc_vld_ra_ri =
-			cpu_to_le16(bdtp_fe_sc_vld_ra_ri);
+			cpu_to_le16(BIT(HNS3_TXD_VLD_B));
 
 		ring_ptr_move_fw(ring, next_to_use);
-		return 0;
+		return HNS3_LIKELY_BD_NUM;
 	}
 
 	frag_buf_num = hns3_tx_bd_count(size);
@@ -1158,8 +1148,6 @@ static int hns3_fill_desc(struct hns3_enet_ring *ring, void *priv,
 
 	/* When frag size is bigger than hardware limit, split this frag */
 	for (k = 0; k < frag_buf_num; k++) {
-		u16 bdtp_fe_sc_vld_ra_ri = 0;
-
 		/* The txbd's baseinfo of DESC_TYPE_PAGE & DESC_TYPE_SKB */
 		desc_cb->priv = priv;
 		desc_cb->dma = dma + HNS3_MAX_BD_SIZE * k;
@@ -1170,11 +1158,8 @@ static int hns3_fill_desc(struct hns3_enet_ring *ring, void *priv,
 		desc->addr = cpu_to_le64(dma + HNS3_MAX_BD_SIZE * k);
 		desc->tx.send_size = cpu_to_le16((k == frag_buf_num - 1) ?
 				     (u16)sizeoflast : (u16)HNS3_MAX_BD_SIZE);
-		hns3_set_txbd_baseinfo(&bdtp_fe_sc_vld_ra_ri,
-				       frag_end && (k == frag_buf_num - 1) ?
-						1 : 0);
 		desc->tx.bdtp_fe_sc_vld_ra_ri =
-				cpu_to_le16(bdtp_fe_sc_vld_ra_ri);
+				cpu_to_le16(BIT(HNS3_TXD_VLD_B));
 
 		/* move ring pointer to next */
 		ring_ptr_move_fw(ring, next_to_use);
@@ -1183,23 +1168,78 @@ static int hns3_fill_desc(struct hns3_enet_ring *ring, void *priv,
 		desc = &ring->desc[ring->next_to_use];
 	}
 
-	return 0;
+	return frag_buf_num;
 }
 
-static unsigned int hns3_nic_bd_num(struct sk_buff *skb)
+static unsigned int hns3_skb_bd_num(struct sk_buff *skb, unsigned int *bd_size,
+				    unsigned int bd_num)
 {
-	unsigned int bd_num;
+	unsigned int size;
 	int i;
 
-	/* if the total len is within the max bd limit */
-	if (likely(skb->len <= HNS3_MAX_BD_SIZE))
-		return skb_shinfo(skb)->nr_frags + 1;
+	size = skb_headlen(skb);
+	while (size > HNS3_MAX_BD_SIZE) {
+		bd_size[bd_num++] = HNS3_MAX_BD_SIZE;
+		size -= HNS3_MAX_BD_SIZE;
+
+		if (bd_num > HNS3_MAX_TSO_BD_NUM)
+			return bd_num;
+	}
 
-	bd_num = hns3_tx_bd_count(skb_headlen(skb));
+	if (size) {
+		bd_size[bd_num++] = size;
+		if (bd_num > HNS3_MAX_TSO_BD_NUM)
+			return bd_num;
+	}
 
 	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
-		bd_num += hns3_tx_bd_count(skb_frag_size(frag));
+		size = skb_frag_size(frag);
+		if (!size)
+			continue;
+
+		while (size > HNS3_MAX_BD_SIZE) {
+			bd_size[bd_num++] = HNS3_MAX_BD_SIZE;
+			size -= HNS3_MAX_BD_SIZE;
+
+			if (bd_num > HNS3_MAX_TSO_BD_NUM)
+				return bd_num;
+		}
+
+		bd_size[bd_num++] = size;
+		if (bd_num > HNS3_MAX_TSO_BD_NUM)
+			return bd_num;
+	}
+
+	return bd_num;
+}
+
+static unsigned int hns3_tx_bd_num(struct sk_buff *skb, unsigned int *bd_size)
+{
+	struct sk_buff *frag_skb;
+	unsigned int bd_num = 0;
+
+	/* If the total len is within the max bd limit */
+	if (likely(skb->len <= HNS3_MAX_BD_SIZE && !skb_has_frag_list(skb) &&
+		   skb_shinfo(skb)->nr_frags < HNS3_MAX_NON_TSO_BD_NUM))
+		return skb_shinfo(skb)->nr_frags + 1U;
+
+	/* The below case will always be linearized, return
+	 * HNS3_MAX_BD_NUM_TSO + 1U to make sure it is linearized.
+	 */
+	if (unlikely(skb->len > HNS3_MAX_TSO_SIZE ||
+		     (!skb_is_gso(skb) && skb->len > HNS3_MAX_NON_TSO_SIZE)))
+		return HNS3_MAX_TSO_BD_NUM + 1U;
+
+	bd_num = hns3_skb_bd_num(skb, bd_size, bd_num);
+
+	if (!skb_has_frag_list(skb) || bd_num > HNS3_MAX_TSO_BD_NUM)
+		return bd_num;
+
+	skb_walk_frags(skb, frag_skb) {
+		bd_num = hns3_skb_bd_num(frag_skb, bd_size, bd_num);
+		if (bd_num > HNS3_MAX_TSO_BD_NUM)
+			return bd_num;
 	}
 
 	return bd_num;
@@ -1218,26 +1258,26 @@ static unsigned int hns3_gso_hdr_len(struct sk_buff *skb)
  * 7 frags to to be larger than gso header len + mss, and the remaining
  * continuous 7 frags to be larger than MSS except the last 7 frags.
  */
-static bool hns3_skb_need_linearized(struct sk_buff *skb)
+static bool hns3_skb_need_linearized(struct sk_buff *skb, unsigned int *bd_size,
+				     unsigned int bd_num)
 {
-	int bd_limit = HNS3_MAX_BD_NUM_NORMAL - 1;
 	unsigned int tot_len = 0;
 	int i;
 
-	for (i = 0; i < bd_limit; i++)
-		tot_len += skb_frag_size(&skb_shinfo(skb)->frags[i]);
+	for (i = 0; i < HNS3_MAX_NON_TSO_BD_NUM - 1U; i++)
+		tot_len += bd_size[i];
 
-	/* ensure headlen + the first 7 frags is greater than mss + header
-	 * and the first 7 frags is greater than mss.
-	 */
-	if (((tot_len + skb_headlen(skb)) < (skb_shinfo(skb)->gso_size +
-	    hns3_gso_hdr_len(skb))) || (tot_len < skb_shinfo(skb)->gso_size))
+	/* ensure the first 8 frags is greater than mss + header */
+	if (tot_len + bd_size[HNS3_MAX_NON_TSO_BD_NUM - 1U] <
+	    skb_shinfo(skb)->gso_size + hns3_gso_hdr_len(skb))
 		return true;
 
-	/* ensure the remaining continuous 7 buffer is greater than mss */
-	for (i = 0; i < (skb_shinfo(skb)->nr_frags - bd_limit - 1); i++) {
-		tot_len -= skb_frag_size(&skb_shinfo(skb)->frags[i]);
-		tot_len += skb_frag_size(&skb_shinfo(skb)->frags[i + bd_limit]);
+	/* ensure every continuous 7 buffer is greater than mss
+	 * except the last one.
+	 */
+	for (i = 0; i < bd_num - HNS3_MAX_NON_TSO_BD_NUM; i++) {
+		tot_len -= bd_size[i];
+		tot_len += bd_size[i + HNS3_MAX_NON_TSO_BD_NUM - 1U];
 
 		if (tot_len < skb_shinfo(skb)->gso_size)
 			return true;
@@ -1249,15 +1289,16 @@ static bool hns3_skb_need_linearized(struct sk_buff *skb)
 static int hns3_nic_maybe_stop_tx(struct hns3_enet_ring *ring,
 				  struct sk_buff **out_skb)
 {
+	unsigned int bd_size[HNS3_MAX_TSO_BD_NUM + 1U];
 	struct sk_buff *skb = *out_skb;
 	unsigned int bd_num;
 
-	bd_num = hns3_nic_bd_num(skb);
-	if (unlikely(bd_num > HNS3_MAX_BD_NUM_NORMAL)) {
+	bd_num = hns3_tx_bd_num(skb, bd_size);
+	if (unlikely(bd_num > HNS3_MAX_NON_TSO_BD_NUM)) {
 		struct sk_buff *new_skb;
 
-		if (skb_is_gso(skb) && bd_num <= HNS3_MAX_BD_NUM_TSO &&
-		    !hns3_skb_need_linearized(skb))
+		if (bd_num <= HNS3_MAX_TSO_BD_NUM && skb_is_gso(skb) &&
+		    !hns3_skb_need_linearized(skb, bd_size, bd_num))
 			goto out;
 
 		/* manual split the send packet */
@@ -1267,9 +1308,10 @@ static int hns3_nic_maybe_stop_tx(struct hns3_enet_ring *ring,
 		dev_kfree_skb_any(skb);
 		*out_skb = new_skb;
 
-		bd_num = hns3_nic_bd_num(new_skb);
-		if ((skb_is_gso(new_skb) && bd_num > HNS3_MAX_BD_NUM_TSO) ||
-		    (!skb_is_gso(new_skb) && bd_num > HNS3_MAX_BD_NUM_NORMAL))
+		bd_num = hns3_tx_bd_count(new_skb->len);
+		if ((skb_is_gso(new_skb) && bd_num > HNS3_MAX_TSO_BD_NUM) ||
+		    (!skb_is_gso(new_skb) &&
+		     bd_num > HNS3_MAX_NON_TSO_BD_NUM))
 			return -ENOMEM;
 
 		u64_stats_update_begin(&ring->syncp);
@@ -1314,6 +1356,37 @@ static void hns3_clear_desc(struct hns3_enet_ring *ring, int next_to_use_orig)
 	}
 }
 
+static int hns3_fill_skb_to_desc(struct hns3_enet_ring *ring,
+				 struct sk_buff *skb, enum hns_desc_type type)
+{
+	unsigned int size = skb_headlen(skb);
+	int i, ret, bd_num = 0;
+
+	if (size) {
+		ret = hns3_fill_desc(ring, skb, size, type);
+		if (unlikely(ret < 0))
+			return ret;
+
+		bd_num += ret;
+	}
+
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+		size = skb_frag_size(frag);
+		if (!size)
+			continue;
+
+		ret = hns3_fill_desc(ring, frag, size, DESC_TYPE_PAGE);
+		if (unlikely(ret < 0))
+			return ret;
+
+		bd_num += ret;
+	}
+
+	return bd_num;
+}
+
 netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
@@ -1321,58 +1394,54 @@ netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
 		&tx_ring_data(priv, skb->queue_mapping);
 	struct hns3_enet_ring *ring = ring_data->ring;
 	struct netdev_queue *dev_queue;
-	skb_frag_t *frag;
-	int next_to_use_head;
-	int buf_num;
-	int seg_num;
-	int size;
+	int pre_ntu, next_to_use_head;
+	struct sk_buff *frag_skb;
+	int bd_num = 0;
 	int ret;
-	int i;
 
 	/* Prefetch the data used later */
 	prefetch(skb->data);
 
-	buf_num = hns3_nic_maybe_stop_tx(ring, &skb);
-	if (unlikely(buf_num <= 0)) {
-		if (buf_num == -EBUSY) {
+	ret = hns3_nic_maybe_stop_tx(ring, &skb);
+	if (unlikely(ret <= 0)) {
+		if (ret == -EBUSY) {
 			u64_stats_update_begin(&ring->syncp);
 			ring->stats.tx_busy++;
 			u64_stats_update_end(&ring->syncp);
 			goto out_net_tx_busy;
-		} else if (buf_num == -ENOMEM) {
+		} else if (ret == -ENOMEM) {
 			u64_stats_update_begin(&ring->syncp);
 			ring->stats.sw_err_cnt++;
 			u64_stats_update_end(&ring->syncp);
 		}
 
-		hns3_rl_err(netdev, "xmit error: %d!\n", buf_num);
+		hns3_rl_err(netdev, "xmit error: %d!\n", ret);
 		goto out_err_tx_ok;
 	}
 
-	/* No. of segments (plus a header) */
-	seg_num = skb_shinfo(skb)->nr_frags + 1;
-	/* Fill the first part */
-	size = skb_headlen(skb);
-
 	next_to_use_head = ring->next_to_use;
 
-	ret = hns3_fill_desc(ring, skb, size, seg_num == 1 ? 1 : 0,
-			     DESC_TYPE_SKB);
-	if (unlikely(ret))
+	ret = hns3_fill_skb_to_desc(ring, skb, DESC_TYPE_SKB);
+	if (unlikely(ret < 0))
 		goto fill_err;
 
-	/* Fill the fragments */
-	for (i = 1; i < seg_num; i++) {
-		frag = &skb_shinfo(skb)->frags[i - 1];
-		size = skb_frag_size(frag);
+	bd_num += ret;
 
-		ret = hns3_fill_desc(ring, frag, size,
-				     seg_num - 1 == i ? 1 : 0,
-				     DESC_TYPE_PAGE);
+	if (!skb_has_frag_list(skb))
+		goto out;
 
-		if (unlikely(ret))
+	skb_walk_frags(skb, frag_skb) {
+		ret = hns3_fill_skb_to_desc(ring, frag_skb, DESC_TYPE_PAGE);
+		if (unlikely(ret < 0))
 			goto fill_err;
+
+		bd_num += ret;
 	}
+out:
+	pre_ntu = ring->next_to_use ? (ring->next_to_use - 1) :
+					(ring->desc_num - 1);
+	ring->desc[pre_ntu].tx.bdtp_fe_sc_vld_ra_ri |=
+				cpu_to_le16(BIT(HNS3_TXD_FE_B));
 
 	/* Complete translate all packets */
 	dev_queue = netdev_get_tx_queue(netdev, ring_data->queue_index);
@@ -1380,7 +1449,7 @@ netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
 
 	wmb(); /* Commit all data before submit */
 
-	hnae3_queue_xmit(ring->tqp, buf_num);
+	hnae3_queue_xmit(ring->tqp, bd_num);
 
 	return NETDEV_TX_OK;
 
@@ -2158,9 +2227,8 @@ static void hns3_set_default_feature(struct net_device *netdev)
 		NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO |
 		NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE |
 		NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL |
-		NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC;
-
-	netdev->hw_enc_features |= NETIF_F_TSO_MANGLEID;
+		NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC |
+		NETIF_F_TSO_MANGLEID | NETIF_F_FRAGLIST;
 
 	netdev->gso_partial_features |= NETIF_F_GSO_GRE_CSUM;
 
@@ -2170,21 +2238,24 @@ static void hns3_set_default_feature(struct net_device *netdev)
 		NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO |
 		NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE |
 		NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL |
-		NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC;
+		NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC |
+		NETIF_F_FRAGLIST;
 
 	netdev->vlan_features |=
 		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
 		NETIF_F_SG | NETIF_F_GSO | NETIF_F_GRO |
 		NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE |
 		NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL |
-		NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC;
+		NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC |
+		NETIF_F_FRAGLIST;
 
 	netdev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 		NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
 		NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO |
 		NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE |
 		NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL |
-		NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC;
+		NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC |
+		NETIF_F_FRAGLIST;
 
 	if (pdev->revision >= 0x21) {
 		netdev->hw_features |= NETIF_F_GRO_HW;
@@ -2447,7 +2518,7 @@ void hns3_clean_tx_ring(struct hns3_enet_ring *ring)
 	netdev_tx_completed_queue(dev_queue, pkts, bytes);
 
 	if (unlikely(pkts && netif_carrier_ok(netdev) &&
-		     (ring_space(ring) > HNS3_MAX_BD_PER_PKT))) {
+		     ring_space(ring) > HNS3_MAX_TSO_BD_NUM)) {
 		/* Make sure that anybody stopping the queue after this
 		 * sees the new next_to_clean.
 		 */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index 2110fa3..c5b7c22 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -76,7 +76,7 @@ enum hns3_nic_state {
 #define HNS3_RING_NAME_LEN			16
 #define HNS3_BUFFER_SIZE_2048			2048
 #define HNS3_RING_MAX_PENDING			32760
-#define HNS3_RING_MIN_PENDING			24
+#define HNS3_RING_MIN_PENDING			72
 #define HNS3_RING_BD_MULTIPLE			8
 /* max frame size of mac */
 #define HNS3_MAC_MAX_FRAME			9728
@@ -195,9 +195,13 @@ enum hns3_nic_state {
 #define HNS3_VECTOR_INITED			1
 
 #define HNS3_MAX_BD_SIZE			65535
-#define HNS3_MAX_BD_NUM_NORMAL			8
-#define HNS3_MAX_BD_NUM_TSO			63
-#define HNS3_MAX_BD_PER_PKT			MAX_SKB_FRAGS
+#define HNS3_MAX_NON_TSO_BD_NUM			8U
+#define HNS3_MAX_TSO_BD_NUM			63U
+#define HNS3_MAX_TSO_SIZE \
+	(HNS3_MAX_BD_SIZE * HNS3_MAX_TSO_BD_NUM)
+
+#define HNS3_MAX_NON_TSO_SIZE \
+	(HNS3_MAX_BD_SIZE * HNS3_MAX_NON_TSO_BD_NUM)
 
 #define HNS3_VECTOR_GL0_OFFSET			0x100
 #define HNS3_VECTOR_GL1_OFFSET			0x200
-- 
2.7.4

Re: [PATCH net-next 0/6] net: hns3: add some new feature

[Jakub Kicinski]

On Tue, 8 Oct 2019 09:20:03 +0800, Huazhong Tan wrote:
> This patch-set includes some new features for the HNS3 ethernet
> controller driver.
> 
> [patch 01/06] adds support for configuring VF link status on the host.
> 
> [patch 02/06] adds support for configuring VF spoof check.
> 
> [patch 03/06] adds support for configuring VF trust.
> 
> [patch 04/06] adds support for configuring VF bandwidth on the host.
> 
> [patch 05/06] adds support for configuring VF MAC on the host.
> 
> [patch 06/06] adds support for tx-scatter-gather-fraglist.

Applied.