[dpdk-dev] [PATCH 1/2] ethdev: add api to set default mac address

[Liang-Min Larry Wang]

add a new api: rte_eth_dev_default_mac_addr_set to
support changing default mac address of a NIC

Signed-off-by: Liang-Min Larry Wang <liang-min.wang at intel.com>
---
 lib/librte_ether/rte_ethdev.c          | 26 ++++++++++++++++++++++++++
 lib/librte_ether/rte_ethdev.h          | 14 ++++++++++++++
 lib/librte_ether/rte_ether_version.map |  1 +
 3 files changed, 41 insertions(+)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 024fe8b..850b83c 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -2752,6 +2752,32 @@ rte_eth_dev_mac_addr_remove(uint8_t port_id, struct 
ether_addr *addr)
 }

 int
+rte_eth_dev_default_mac_addr_set(uint8_t port_id, struct ether_addr *addr)
+{
+       struct rte_eth_dev *dev;
+       const int index = 0;
+       const uint32_t pool = 0;
+
+       if (!rte_eth_dev_is_valid_port(port_id)) {
+               PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
+               return -ENODEV;
+       }
+
+       dev = &rte_eth_devices[port_id];
+       FUNC_PTR_OR_ERR_RET(*dev->dev_ops->mac_addr_remove, -ENOTSUP);
+       FUNC_PTR_OR_ERR_RET(*dev->dev_ops->mac_addr_add, -ENOTSUP);
+
+       /* Update NIC default MAC address*/
+       (*dev->dev_ops->mac_addr_remove)(dev, index);
+       (*dev->dev_ops->mac_addr_add)(dev, addr, index, pool);
+
+       /* Update default address in NIC data structure */
+       ether_addr_copy(addr, &dev->data->mac_addrs[index]);
+
+       return 0;
+}
+
+int
 rte_eth_dev_set_vf_rxmode(uint8_t port_id,  uint16_t vf,
                                uint16_t rx_mode, uint8_t on)
 {
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 16dbe00..5f07e0d 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -2982,6 +2982,20 @@ int rte_eth_dev_mac_addr_add(uint8_t port, struct 
ether_addr *mac_addr,
 int rte_eth_dev_mac_addr_remove(uint8_t port, struct ether_addr *mac_addr);

 /**
+ * Set the default MAC address.
+ *
+ * @param port
+ *   The port identifier of the Ethernet device.
+ * @param mac_addr
+ *   New default MAC address.
+ * @return
+ *   - (0) if successful, or *mac_addr* didn't exist.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port* invalid.
+ */
+int rte_eth_dev_default_mac_addr_set(uint8_t port, struct ether_addr 
*mac_addr);
+
+/**
  * Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
  *
  * @param port
diff --git a/lib/librte_ether/rte_ether_version.map 
b/lib/librte_ether/rte_ether_version.map
index a2d25a6..2dbbaa7 100644
--- a/lib/librte_ether/rte_ether_version.map
+++ b/lib/librte_ether/rte_ether_version.map
@@ -102,6 +102,7 @@ DPDK_2.0 {
        rte_eth_tx_queue_setup;
        rte_eth_xstats_get;
        rte_eth_xstats_reset;
+       rte_eth_dev_default_mac_addr_set;

        local: *;
 };
-- 
2.1.4