kni: support MAC address change

[dpdk.git] / examples / kni / main.c

diff --git a/examples/kni/main.c b/examples/kni/main.c
index dfa2d92..bd3b329 100644 (file)
--- a/examples/kni/main.c
+++ b/examples/kni/main.c
@@ -131,6 +131,7 @@ static struct kni_interface_stats kni_stats[RTE_MAX_ETHPORTS];
 
 static int kni_change_mtu(uint16_t port_id, unsigned int new_mtu);
 static int kni_config_network_interface(uint16_t port_id, uint8_t if_up);
+static int kni_config_mac_address(uint16_t port_id, uint8_t mac_addr[]);
 
 static rte_atomic32_t kni_stop = RTE_ATOMIC32_INIT(0);
 
@@ -767,6 +768,37 @@ kni_config_network_interface(uint16_t port_id, uint8_t if_up)
        return ret;
 }
 
+static void
+print_ethaddr(const char *name, struct ether_addr *mac_addr)
+{
+       char buf[ETHER_ADDR_FMT_SIZE];
+       ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, mac_addr);
+       RTE_LOG(INFO, APP, "\t%s%s\n", name, buf);
+}
+
+/* Callback for request of configuring mac address */
+static int
+kni_config_mac_address(uint16_t port_id, uint8_t mac_addr[])
+{
+       int ret = 0;
+
+       if (port_id >= rte_eth_dev_count() || port_id >= RTE_MAX_ETHPORTS) {
+               RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
+               return -EINVAL;
+       }
+
+       RTE_LOG(INFO, APP, "Configure mac address of %d\n", port_id);
+       print_ethaddr("Address:", (struct ether_addr *)mac_addr);
+
+       ret = rte_eth_dev_default_mac_addr_set(port_id,
+                                              (struct ether_addr *)mac_addr);
+       if (ret < 0)
+               RTE_LOG(ERR, APP, "Failed to config mac_addr for port %d\n",
+                       port_id);
+
+       return ret;
+}
+
 static int
 kni_alloc(uint16_t port_id)
 {
@@ -810,11 +842,15 @@ kni_alloc(uint16_t port_id)
                                conf.addr = dev_info.pci_dev->addr;
                                conf.id = dev_info.pci_dev->id;
                        }
+                       /* Get the interface default mac address */
+                       rte_eth_macaddr_get(port_id,
+                                       (struct ether_addr *)&conf.mac_addr);
 
                        memset(&ops, 0, sizeof(ops));
                        ops.port_id = port_id;
                        ops.change_mtu = kni_change_mtu;
                        ops.config_network_if = kni_config_network_interface;
+                       ops.config_mac_address = kni_config_mac_address;
 
                        kni = rte_kni_alloc(pktmbuf_pool, &conf, &ops);
                } else