MAC address is retrieved by making an IOCTL call
Signed-off-by: Srikanth Kaka <srikanth.k@oneconvergence.com>
Signed-off-by: Vag Singh <vag.singh@oneconvergence.com>
Signed-off-by: Anand Thulasiram <avelu@juniper.net>
---
drivers/net/mlx5/freebsd/mlx5_ethdev_os.c | 88 +++++++++++++++++++++++
1 file changed, 88 insertions(+)
@@ -4,6 +4,9 @@
*/
#include <stdio.h>
+#include <stdint.h>
+#include <net/if_media.h>
+#include <sys/ioctl.h>
#include <ethdev_driver.h>
@@ -31,3 +34,88 @@ mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[MLX5_NAMESIZE])
MLX5_ASSERT(priv->sh);
return mlx5_get_ifname_sysfs(priv->sh->ibdev_path, *ifname);
}
+
+/**
+ * Perform ifreq ioctl() on associated netdev ifname.
+ *
+ * @param[in] ifname
+ * Pointer to netdev name.
+ * @param req
+ * Request number to pass to ioctl().
+ * @param[out] ifr
+ * Interface request structure output buffer.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_ifreq_by_ifname(const char *ifname, int req, struct ifreq *ifr)
+{
+ int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
+ int ret = 0;
+
+ if (sock == -1) {
+ rte_errno = errno;
+ return -rte_errno;
+ }
+ rte_strscpy(ifr->ifr_name, ifname, sizeof(ifr->ifr_name));
+ ret = ioctl(sock, req, ifr);
+ if (ret == -1) {
+ rte_errno = errno;
+ goto error;
+ }
+ close(sock);
+ return 0;
+error:
+ close(sock);
+ return -rte_errno;
+}
+
+/**
+ * Perform ifreq ioctl() on associated Ethernet device.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param req
+ * Request number to pass to ioctl().
+ * @param[out] ifr
+ * Interface request structure output buffer.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr)
+{
+ char ifname[sizeof(ifr->ifr_name)];
+ int ret;
+
+ ret = mlx5_get_ifname(dev, &ifname);
+ if (ret)
+ return -rte_errno;
+ return mlx5_ifreq_by_ifname(ifname, req, ifr);
+}
+
+/**
+ * Get MAC address by querying netdevice.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[out] mac
+ * MAC address output buffer.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_get_mac(struct rte_eth_dev *dev, uint8_t (*mac)[RTE_ETHER_ADDR_LEN])
+{
+ struct ifreq request;
+ int ret;
+
+ ret = mlx5_ifreq(dev, SIOCGHWADDR, &request);
+ if (ret)
+ return ret;
+ memcpy(mac, request.ifr_addr.sa_data, RTE_ETHER_ADDR_LEN);
+ return 0;
+}