net: hns3: configure promisc mode for VF asynchronously

Currently, when host set VF untrusted, the driver will disable
the promisc mode of VF. It may be conflicted when the VF requests
the host to set promisc mode. So refactor it by changing promisc
mode for VF asynchronously. With this change, the promisc mode of
VF can be restored when the VF being trusted again.
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

@@ -11500,10 +11500,7 @@ 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;
-	struct hnae3_ae_dev *ae_dev = hdev->ae_dev;
 	u32 new_trusted = enable ? 1 : 0;
-	bool en_bc_pmc;
-	int ret;
 
 	vport = hclge_get_vf_vport(hdev, vf);
 	if (!vport)
@@ -11512,18 +11509,9 @@ static int hclge_set_vf_trust(struct hnae3_handle *handle, int vf, bool enable)
 	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 = ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V2;
-		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;
+	set_bit(HCLGE_VPORT_STATE_PROMISC_CHANGE, &vport->state);
+	hclge_task_schedule(hdev, 0);
 
 	return 0;
 }
@@ -12417,6 +12405,7 @@ static void hclge_sync_promisc_mode(struct hclge_dev *hdev)
 	struct hnae3_handle *handle = &vport->nic;
 	u8 tmp_flags;
 	int ret;
+	u16 i;
 
 	if (vport->last_promisc_flags != vport->overflow_promisc_flags) {
 		set_bit(HCLGE_STATE_PROMISC_CHANGED, &hdev->state);
@@ -12433,6 +12422,32 @@ static void hclge_sync_promisc_mode(struct hclge_dev *hdev)
 						 tmp_flags & HNAE3_VLAN_FLTR);
 		}
 	}
+
+	for (i = 1; i < hdev->num_alloc_vport; i++) {
+		bool uc_en = false;
+		bool mc_en = false;
+		bool bc_en;
+
+		vport = &hdev->vport[i];
+
+		if (!test_and_clear_bit(HCLGE_VPORT_STATE_PROMISC_CHANGE,
+					&vport->state))
+			continue;
+
+		if (vport->vf_info.trusted) {
+			uc_en = vport->vf_info.request_uc_en > 0;
+			mc_en = vport->vf_info.request_mc_en > 0;
+		}
+		bc_en = vport->vf_info.request_bc_en > 0;
+
+		ret = hclge_cmd_set_promisc_mode(hdev, vport->vport_id, uc_en,
+						 mc_en, bc_en);
+		if (ret) {
+			set_bit(HCLGE_VPORT_STATE_PROMISC_CHANGE,
+				&vport->state);
+			return;
+		}
+	}
 }
 
 static bool hclge_module_existed(struct hclge_dev *hdev)

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h

@@ -952,6 +952,7 @@ struct hclge_rss_tuple_cfg {
 enum HCLGE_VPORT_STATE {
 	HCLGE_VPORT_STATE_ALIVE,
 	HCLGE_VPORT_STATE_MAC_TBL_CHANGE,
+	HCLGE_VPORT_STATE_PROMISC_CHANGE,
 	HCLGE_VPORT_STATE_MAX
 };
 
@@ -972,7 +973,9 @@ struct hclge_vf_info {
 	u32 spoofchk;
 	u32 max_tx_rate;
 	u32 trusted;
-	u16 promisc_enable;
+	u8 request_uc_en;
+	u8 request_mc_en;
+	u8 request_bc_en;
 };
 
 struct hclge_vport {

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c

@@ -231,19 +231,15 @@ static int hclge_map_unmap_ring_to_vf_vector(struct hclge_vport *vport, bool en,
 	return ret;
 }
 
-static int hclge_set_vf_promisc_mode(struct hclge_vport *vport,
+static void hclge_set_vf_promisc_mode(struct hclge_vport *vport,
 				      struct hclge_mbx_vf_to_pf_cmd *req)
 {
-	bool en_bc = req->msg.en_bc ? true : false;
-	bool en_uc = req->msg.en_uc ? true : false;
-	bool en_mc = req->msg.en_mc ? true : false;
 	struct hnae3_handle *handle = &vport->nic;
-	int ret;
+	struct hclge_dev *hdev = vport->back;
 
-	if (!vport->vf_info.trusted) {
-		en_uc = false;
-		en_mc = false;
-	}
+	vport->vf_info.request_uc_en = req->msg.en_uc;
+	vport->vf_info.request_mc_en = req->msg.en_mc;
+	vport->vf_info.request_bc_en = req->msg.en_bc;
 
 	if (req->msg.en_limit_promisc)
 		set_bit(HNAE3_PFLAG_LIMIT_PROMISC, &handle->priv_flags);
@@ -251,22 +247,8 @@ static int hclge_set_vf_promisc_mode(struct hclge_vport *vport,
 		clear_bit(HNAE3_PFLAG_LIMIT_PROMISC,
 			  &handle->priv_flags);
 
-	ret = hclge_set_vport_promisc_mode(vport, en_uc, en_mc, en_bc);
-
-	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);
+	set_bit(HCLGE_VPORT_STATE_PROMISC_CHANGE, &vport->state);
+	hclge_task_schedule(hdev, 0);
 }
 
 static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport,
@@ -748,11 +730,7 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 								req);
 			break;
 		case HCLGE_MBX_SET_PROMISC_MODE:
-			ret = hclge_set_vf_promisc_mode(vport, req);
-			if (ret)
-				dev_err(&hdev->pdev->dev,
-					"PF fail(%d) to set VF promisc mode\n",
-					ret);
+			hclge_set_vf_promisc_mode(vport, req);
 			break;
 		case HCLGE_MBX_SET_UNICAST:
 			ret = hclge_set_vf_uc_mac_addr(vport, req);