[dpdk-dev] [PATCH v2 22/41] net/mlx5: add link state callbacks

[Srikanth Kaka]

mlx5_set_link_up() & mlx5_set_link_down() use IOCTL call to
set link state

Signed-off-by: Srikanth Kaka <srikanth.k at oneconvergence.com>
Signed-off-by: Vag Singh <vag.singh at oneconvergence.com>
Signed-off-by: Anand Thulasiram <avelu at juniper.net>
---
 drivers/net/mlx5/freebsd/mlx5_ethdev_os.c | 56 +++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/drivers/net/mlx5/freebsd/mlx5_ethdev_os.c b/drivers/net/mlx5/freebsd/mlx5_ethdev_os.c
index 10069302bb..8b2ea1c594 100644
--- a/drivers/net/mlx5/freebsd/mlx5_ethdev_os.c
+++ b/drivers/net/mlx5/freebsd/mlx5_ethdev_os.c
@@ -138,6 +138,62 @@ mlx5_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 	return mlx5_ifreq(dev, SIOCSIFMTU, &request);
 }
 
+/**
+ * Set device flags.
+ *
+ * @param dev
+ *   Pointer to Ethernet device.
+ * @param keep
+ *   Bitmask for flags that must remain untouched.
+ * @param flags
+ *   Bitmask for flags to modify.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_set_flags(struct rte_eth_dev *dev, unsigned int keep, unsigned int flags)
+{
+	struct ifreq request;
+	int ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &request);
+
+	if (ret)
+		return ret;
+	request.ifr_flags &= keep;
+	request.ifr_flags |= flags & ~keep;
+	return mlx5_ifreq(dev, SIOCSIFFLAGS, &request);
+}
+
+/**
+ * DPDK callback to bring the link DOWN.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_set_link_down(struct rte_eth_dev *dev)
+{
+	return mlx5_set_flags(dev, ~IFF_UP, ~IFF_UP);
+}
+
+/**
+ * DPDK callback to bring the link UP.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_set_link_up(struct rte_eth_dev *dev)
+{
+	return mlx5_set_flags(dev, ~IFF_UP, IFF_UP);
+}
+
 /**
  * Get MAC address by querying netdevice.
  *
-- 
2.30.2