net/mlx5: implement CQ for Rx using DevX API

[dpdk.git] / drivers / net / mlx5 / linux / mlx5_os.c

diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index e230225..a3a5e78 100644 (file)
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -65,6 +65,27 @@ static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
 /* Process local data for secondary processes. */
 static struct mlx5_local_data mlx5_local_data;
 
+/**
+ * Set the completion channel file descriptor interrupt as non-blocking.
+ *
+ * @param[in] rxq_obj
+ *   Pointer to RQ channel object, which includes the channel fd
+ *
+ * @param[out] fd
+ *   The file descriptor (representing the intetrrupt) used in this channel.
+ *
+ * @return
+ *   0 on successfully setting the fd to non-blocking, non-zero otherwise.
+ */
+int
+mlx5_os_set_nonblock_channel_fd(int fd)
+{
+       int flags;
+
+       flags = fcntl(fd, F_GETFL);
+       return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+}
+
 /**
  * Get mlx5 device attributes. The glue function query_device_ex() is called
  * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5