1 files changed, 80 insertions, 0 deletions
diff --git a/host/lib/include/uhdlib/transport/dpdk_common.hpp b/host/lib/include/uhdlib/transport/dpdk_common.hpp
new file mode 100644
index 000000000..2f320e79e
--- /dev/null
+++ b/host/lib/include/uhdlib/transport/dpdk_common.hpp
@@ -0,0 +1,80 @@
+//
+// Copyright 2018 Ettus Research, a National Instruments Company
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+
+#ifndef INCLUDED_DPDK_COMMON_HPP
+#define INCLUDED_DPDK_COMMON_HPP
+
+#include <uhd/config.hpp>
+#include <uhd/types/device_addr.hpp>
+#include <uhd/utils/static.hpp>
+#include <array>
+#include <atomic>
+#include <mutex>
+#include <string>
+
+namespace uhd { namespace transport {
+
+class uhd_dpdk_ctx : boost::noncopyable {
+public:
+    UHD_SINGLETON_FCN(uhd_dpdk_ctx, get);
+
+    ~uhd_dpdk_ctx(void);
+
+    /*!
+     * Initialize uhd-dpdk (and do only once)
+     * \param user_args User args passed in to override config files
+     */
+    void init(const device_addr_t &user_args);
+
+    /*!
+     * Get MTU of NICs used by DPDK
+     *
+     * \return Number of Bytes in MTU
+     */
+    size_t get_mtu(void) const;
+
+    /*!
+     * Get port ID from provided MAC address
+     * \param mac_addr MAC address
+     * \param port_id Int to write ID of port corresponding to MAC address
+     * \return 0 if match found, else no match
+     */
+    int get_port_id(std::array<uint8_t, 6> mac_addr, unsigned int &port_id) const;
+
+    /*!
+     * Get port ID for routing packet destined for given address
+     * \param addr Destination address
+     * \return port ID from routing table
+     */
+    int get_route(const std::string &addr) const;
+
+    /*!
+     * Set IPv4 address and subnet mask of given NIC port
+     * Not thread-safe. Should only be written before ports are in use.
+     * \param port_id NIC port ID
+     * \param ipv4_addr IPv4 address to write
+     * \param netmask Subnet mask identifying network number in ipv4_addr
+     * \return 0 if successful, else error
+     */
+    int set_ipv4_addr(unsigned int port_id, uint32_t ipv4_addr, uint32_t netmask);
+
+    /*!
+     * \return whether init() has been called
+     */
+    bool is_init_done(void) const;
+
+private:
+    uhd_dpdk_ctx(void);
+
+    size_t _mtu;
+    std::mutex _init_mutex;
+    std::atomic<bool> _init_done;
+    uhd::dict<uint32_t, unsigned int> _routes;
+};
+
+}} // namespace uhd::transport
+
+#endif /* INCLUDED_DPDK_COMMON_HPP */