net: hns: add the support to add/remove the ucast entry to/from table

This patch adds the support to add or remove the unicast entries
to the table and remove from the table.

Reported-by: Daode Huang <huangdaode@hisilicon.com>
Signed-off-by: Kejian Yan <yankejian@huawei.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 49 insertions, 0 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
index ebecbed20ea2..90dbda792614 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
@@ -1598,6 +1598,55 @@ int hns_dsaf_set_mac_uc_entry(
 	return 0;
 }
 
+int hns_dsaf_rm_mac_addr(
+	struct dsaf_device *dsaf_dev,
+	struct dsaf_drv_mac_single_dest_entry *mac_entry)
+{
+	u16 entry_index = DSAF_INVALID_ENTRY_IDX;
+	struct dsaf_tbl_tcam_ucast_cfg mac_data;
+	struct dsaf_drv_tbl_tcam_key mac_key;
+
+	/* mac addr check */
+	if (!is_valid_ether_addr(mac_entry->addr)) {
+		dev_err(dsaf_dev->dev, "rm_uc_addr %s Mac %pM err!\n",
+			dsaf_dev->ae_dev.name, mac_entry->addr);
+		return -EINVAL;
+	}
+
+	/* config key */
+	hns_dsaf_set_mac_key(dsaf_dev, &mac_key, mac_entry->in_vlan_id,
+			     mac_entry->in_port_num, mac_entry->addr);
+
+	entry_index = hns_dsaf_find_soft_mac_entry(dsaf_dev, &mac_key);
+	if (entry_index == DSAF_INVALID_ENTRY_IDX) {
+		/* can not find the tcam entry, return 0 */
+		dev_info(dsaf_dev->dev,
+			 "rm_uc_addr no tcam, %s Mac key(%#x:%#x)\n",
+			 dsaf_dev->ae_dev.name,
+			 mac_key.high.val, mac_key.low.val);
+		return 0;
+	}
+
+	dev_dbg(dsaf_dev->dev,
+		"rm_uc_addr, %s Mac key(%#x:%#x) entry_index%d\n",
+		dsaf_dev->ae_dev.name, mac_key.high.val,
+		mac_key.low.val, entry_index);
+
+	hns_dsaf_tcam_uc_get(
+			dsaf_dev, entry_index,
+			(struct dsaf_tbl_tcam_data *)&mac_key,
+			&mac_data);
+
+	/* unicast entry not used locally should not clear */
+	if (mac_entry->port_num != mac_data.tbl_ucast_out_port)
+		return -EFAULT;
+
+	return hns_dsaf_del_mac_entry(dsaf_dev,
+				      mac_entry->in_vlan_id,
+				      mac_entry->in_port_num,
+				      mac_entry->addr);
+}
+
 /**
  * hns_dsaf_set_mac_mc_entry - set mac mc-entry
  * @dsaf_dev: dsa fabric device struct pointer