virtio: set MAC address

Need to have do special things to set default mac address.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com>
Acked-by: Huawei Xie <huawei.xie@intel.com>

diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 1b51c2f..fd8451a 100644 (file)
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1241,6 +1241,10 @@ typedef void (*eth_mac_addr_add_t)(struct rte_eth_dev *dev,
                                  uint32_t vmdq);
 /**< @internal Set a MAC address into Receive Address Address Register */
 
+typedef void (*eth_mac_addr_set_t)(struct rte_eth_dev *dev,
+                                 struct ether_addr *mac_addr);
+/**< @internal Set a MAC address into Receive Address Address Register */
+
 typedef int (*eth_uc_hash_table_set_t)(struct rte_eth_dev *dev,
                                  struct ether_addr *mac_addr,
                                  uint8_t on);
@@ -1460,6 +1464,7 @@ struct eth_dev_ops {
        priority_flow_ctrl_set_t   priority_flow_ctrl_set; /**< Setup priority flow control.*/
        eth_mac_addr_remove_t      mac_addr_remove; /**< Remove MAC address */
        eth_mac_addr_add_t         mac_addr_add;  /**< Add a MAC address */
+       eth_mac_addr_set_t         mac_addr_set;  /**< Set a MAC address */
        eth_uc_hash_table_set_t    uc_hash_table_set;  /**< Set Unicast Table Array */
        eth_uc_all_hash_table_set_t uc_all_hash_table_set;  /**< Set Unicast hash bitmap */
        eth_mirror_rule_set_t      mirror_rule_set;  /**< Add a traffic mirror rule.*/

diff --git a/lib/librte_pmd_virtio/virtio_ethdev.c b/lib/librte_pmd_virtio/virtio_ethdev.c
index 1ceb9c1..6c224d4 100644 (file)
--- a/lib/librte_pmd_virtio/virtio_ethdev.c
+++ b/lib/librte_pmd_virtio/virtio_ethdev.c
@@ -90,6 +90,8 @@ static void virtio_mac_addr_add(struct rte_eth_dev *dev,
                                struct ether_addr *mac_addr,
                                uint32_t index, uint32_t vmdq __rte_unused);
 static void virtio_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index);
+static void virtio_mac_addr_set(struct rte_eth_dev *dev,
+                               struct ether_addr *mac_addr);
 
 static int virtio_dev_queue_stats_mapping_set(
        __rte_unused struct rte_eth_dev *eth_dev,
@@ -519,6 +521,7 @@ static struct eth_dev_ops virtio_eth_dev_ops = {
        .vlan_filter_set         = virtio_vlan_filter_set,
        .mac_addr_add            = virtio_mac_addr_add,
        .mac_addr_remove         = virtio_mac_addr_remove,
+       .mac_addr_set            = virtio_mac_addr_set,
 };
 
 static inline int
@@ -734,6 +737,27 @@ virtio_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
        virtio_mac_table_set(hw, uc, mc);
 }
 
+static void
+virtio_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
+{
+       struct virtio_hw *hw = dev->data->dev_private;
+
+       memcpy(hw->mac_addr, mac_addr, ETHER_ADDR_LEN);
+
+       /* Use atomic update if available */
+       if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_MAC_ADDR)) {
+               struct virtio_pmd_ctrl ctrl;
+               int len = ETHER_ADDR_LEN;
+
+               ctrl.hdr.class = VIRTIO_NET_CTRL_MAC;
+               ctrl.hdr.cmd = VIRTIO_NET_CTRL_MAC_ADDR_SET;
+
+               memcpy(ctrl.data, mac_addr, ETHER_ADDR_LEN);
+               virtio_send_command(hw->cvq, &ctrl, &len, 1);
+       } else if (vtpci_with_feature(hw, VIRTIO_NET_F_MAC))
+               virtio_set_hwaddr(hw);
+}
+
 static int
 virtio_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 {