Merge branch 'hns3-mac'

Guangbin Huang says:

====================
PF support get MAC address space assigned by firmware

This series add support PF to get unicast/multicast MAC address space
assigned by firmware for the HNS3 ethernet driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hnae3.h

@@ -95,6 +95,7 @@ enum HNAE3_DEV_CAP_BITS {
 	HNAE3_DEV_SUPPORT_RXD_ADV_LAYOUT_B,
 	HNAE3_DEV_SUPPORT_PORT_VLAN_BYPASS_B,
 	HNAE3_DEV_SUPPORT_VLAN_FLTR_MDF_B,
+	HNAE3_DEV_SUPPORT_MC_MAC_MNG_B,
 };
 
 #define hnae3_dev_fd_supported(hdev) \
@@ -151,6 +152,9 @@ enum HNAE3_DEV_CAP_BITS {
 #define hnae3_ae_dev_rxd_adv_layout_supported(ae_dev) \
 	test_bit(HNAE3_DEV_SUPPORT_RXD_ADV_LAYOUT_B, (ae_dev)->caps)
 
+#define hnae3_ae_dev_mc_mac_mng_supported(ae_dev) \
+	test_bit(HNAE3_DEV_SUPPORT_MC_MAC_MNG_B, (ae_dev)->caps)
+
 enum HNAE3_PF_CAP_BITS {
 	HNAE3_PF_SUPPORT_VLAN_FLTR_MDF_B = 0,
 };
@@ -341,6 +345,8 @@ struct hnae3_dev_specs {
 	u8 max_non_tso_bd_num; /* max BD number of one non-TSO packet */
 	u16 max_frm_size;
 	u16 max_qset_num;
+	u16 umv_size;
+	u16 mc_mac_size;
 };
 
 struct hnae3_client_ops {

drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c

@@ -924,6 +924,10 @@ hns3_dbg_dev_specs(struct hnae3_handle *h, char *buf, int len, int *pos)
 			  dev_specs->max_tm_rate);
 	*pos += scnprintf(buf + *pos, len - *pos, "MAX QSET number: %u\n",
 			  dev_specs->max_qset_num);
+	*pos += scnprintf(buf + *pos, len - *pos, "umv size: %u\n",
+			  dev_specs->umv_size);
+	*pos += scnprintf(buf + *pos, len - *pos, "mc mac size: %u\n",
+			  dev_specs->mc_mac_size);
 }
 
 static int hns3_dbg_dev_info(struct hnae3_handle *h, char *buf, int len)

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

@@ -1188,7 +1188,10 @@ struct hclge_dev_specs_1_cmd {
 	__le16 max_frm_size;
 	__le16 max_qset_num;
 	__le16 max_int_gl;
-	u8 rsv1[18];
+	u8 rsv0[2];
+	__le16 umv_size;
+	__le16 mc_mac_size;
+	u8 rsv1[12];
 };
 
 /* mac speed type defined in firmware command */

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

@@ -1968,6 +1968,9 @@ static int hclge_dbg_dump_umv_info(struct hclge_dev *hdev, char *buf, int len)
 	}
 	mutex_unlock(&hdev->vport_lock);
 
+	pos += scnprintf(buf + pos, len - pos, "used_mc_mac_num  : %u\n",
+			 hdev->used_mc_mac_num);
+
 	return 0;
 }
 

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

@@ -1342,8 +1342,6 @@ static void hclge_parse_cfg(struct hclge_cfg *cfg, struct hclge_desc *desc)
 	cfg->umv_space = hnae3_get_field(__le32_to_cpu(req->param[1]),
 					 HCLGE_CFG_UMV_TBL_SPACE_M,
 					 HCLGE_CFG_UMV_TBL_SPACE_S);
-	if (!cfg->umv_space)
-		cfg->umv_space = HCLGE_DEFAULT_UMV_SPACE_PER_PF;
 
 	cfg->pf_rss_size_max = hnae3_get_field(__le32_to_cpu(req->param[2]),
 					       HCLGE_CFG_PF_RSS_SIZE_M,
@@ -1419,6 +1417,7 @@ static void hclge_set_default_dev_specs(struct hclge_dev *hdev)
 	ae_dev->dev_specs.max_int_gl = HCLGE_DEF_MAX_INT_GL;
 	ae_dev->dev_specs.max_frm_size = HCLGE_MAC_MAX_FRAME;
 	ae_dev->dev_specs.max_qset_num = HCLGE_MAX_QSET_NUM;
+	ae_dev->dev_specs.umv_size = HCLGE_DEFAULT_UMV_SPACE_PER_PF;
 }
 
 static void hclge_parse_dev_specs(struct hclge_dev *hdev,
@@ -1440,6 +1439,8 @@ static void hclge_parse_dev_specs(struct hclge_dev *hdev,
 	ae_dev->dev_specs.max_qset_num = le16_to_cpu(req1->max_qset_num);
 	ae_dev->dev_specs.max_int_gl = le16_to_cpu(req1->max_int_gl);
 	ae_dev->dev_specs.max_frm_size = le16_to_cpu(req1->max_frm_size);
+	ae_dev->dev_specs.umv_size = le16_to_cpu(req1->umv_size);
+	ae_dev->dev_specs.mc_mac_size = le16_to_cpu(req1->mc_mac_size);
 }
 
 static void hclge_check_dev_specs(struct hclge_dev *hdev)
@@ -1460,6 +1461,8 @@ static void hclge_check_dev_specs(struct hclge_dev *hdev)
 		dev_specs->max_int_gl = HCLGE_DEF_MAX_INT_GL;
 	if (!dev_specs->max_frm_size)
 		dev_specs->max_frm_size = HCLGE_MAC_MAX_FRAME;
+	if (!dev_specs->umv_size)
+		dev_specs->umv_size = HCLGE_DEFAULT_UMV_SPACE_PER_PF;
 }
 
 static int hclge_query_dev_specs(struct hclge_dev *hdev)
@@ -1548,7 +1551,10 @@ static int hclge_configure(struct hclge_dev *hdev)
 	hdev->tm_info.num_pg = 1;
 	hdev->tc_max = cfg.tc_num;
 	hdev->tm_info.hw_pfc_map = 0;
-	hdev->wanted_umv_size = cfg.umv_space;
+	if (cfg.umv_space)
+		hdev->wanted_umv_size = cfg.umv_space;
+	else
+		hdev->wanted_umv_size = hdev->ae_dev->dev_specs.umv_size;
 	hdev->tx_spare_buf_size = cfg.tx_spare_buf_size;
 	hdev->gro_en = true;
 	if (cfg.vlan_fliter_cap == HCLGE_VLAN_FLTR_CAN_MDF)
@@ -8475,6 +8481,9 @@ static int hclge_init_umv_space(struct hclge_dev *hdev)
 	hdev->share_umv_size = hdev->priv_umv_size +
 			hdev->max_umv_size % (hdev->num_alloc_vport + 1);
 
+	if (hdev->ae_dev->dev_specs.mc_mac_size)
+		set_bit(HNAE3_DEV_SUPPORT_MC_MAC_MNG_B, hdev->ae_dev->caps);
+
 	return 0;
 }
 
@@ -8492,6 +8501,8 @@ static void hclge_reset_umv_space(struct hclge_dev *hdev)
 	hdev->share_umv_size = hdev->priv_umv_size +
 			hdev->max_umv_size % (hdev->num_alloc_vport + 1);
 	mutex_unlock(&hdev->vport_lock);
+
+	hdev->used_mc_mac_num = 0;
 }
 
 static bool hclge_is_umv_space_full(struct hclge_vport *vport, bool need_lock)
@@ -8753,6 +8764,7 @@ int hclge_add_mc_addr_common(struct hclge_vport *vport,
 	struct hclge_dev *hdev = vport->back;
 	struct hclge_mac_vlan_tbl_entry_cmd req;
 	struct hclge_desc desc[3];
+	bool is_new_addr = false;
 	int status;
 
 	/* mac addr check */
@@ -8766,6 +8778,13 @@ int hclge_add_mc_addr_common(struct hclge_vport *vport,
 	hclge_prepare_mac_addr(&req, addr, true);
 	status = hclge_lookup_mac_vlan_tbl(vport, &req, desc, true);
 	if (status) {
+		if (hnae3_ae_dev_mc_mac_mng_supported(hdev->ae_dev) &&
+		    hdev->used_mc_mac_num >=
+		    hdev->ae_dev->dev_specs.mc_mac_size)
+			goto err_no_space;
+
+		is_new_addr = true;
+
 		/* This mac addr do not exist, add new entry for it */
 		memset(desc[0].data, 0, sizeof(desc[0].data));
 		memset(desc[1].data, 0, sizeof(desc[0].data));
@@ -8775,12 +8794,18 @@ int hclge_add_mc_addr_common(struct hclge_vport *vport,
 	if (status)
 		return status;
 	status = hclge_add_mac_vlan_tbl(vport, &req, desc);
-	/* if already overflow, not to print each time */
-	if (status == -ENOSPC &&
-	    !(vport->overflow_promisc_flags & HNAE3_OVERFLOW_MPE))
-		dev_err(&hdev->pdev->dev, "mc mac vlan table is full\n");
+	if (status == -ENOSPC)
+		goto err_no_space;
+	else if (!status && is_new_addr)
+		hdev->used_mc_mac_num++;
 
 	return status;
+
+err_no_space:
+	/* if already overflow, not to print each time */
+	if (!(vport->overflow_promisc_flags & HNAE3_OVERFLOW_MPE))
+		dev_err(&hdev->pdev->dev, "mc mac vlan table is full\n");
+	return -ENOSPC;
 }
 
 static int hclge_rm_mc_addr(struct hnae3_handle *handle,
@@ -8817,12 +8842,15 @@ int hclge_rm_mc_addr_common(struct hclge_vport *vport,
 		if (status)
 			return status;
 
-		if (hclge_is_all_function_id_zero(desc))
+		if (hclge_is_all_function_id_zero(desc)) {
 			/* All the vfid is zero, so need to delete this entry */
 			status = hclge_remove_mac_vlan_tbl(vport, &req);
-		else
+			if (!status)
+				hdev->used_mc_mac_num--;
+		} else {
 			/* Not all the vfid is zero, update the vfid */
 			status = hclge_add_mac_vlan_tbl(vport, &req, desc);
+		}
 	} else if (status == -ENOENT) {
 		status = 0;
 	}

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

@@ -938,6 +938,8 @@ struct hclge_dev {
 	u16 priv_umv_size;
 	/* unicast mac vlan space shared by PF and its VFs */
 	u16 share_umv_size;
+	/* multicast mac address number used by PF and its VFs */
+	u16 used_mc_mac_num;
 
 	DECLARE_KFIFO(mac_tnl_log, struct hclge_mac_tnl_stats,
 		      HCLGE_MAC_TNL_LOG_SIZE);