uhdlib: Add dpdk_zero_copy.hpp

dpdk_zero_copy.hpp was referenced in multiple places using relative
paths. Let's throw it in uhdlib for easy access.

1 files changed, 45 insertions, 0 deletions

diff --git a/host/lib/include/uhdlib/transport/dpdk_zero_copy.hpp b/host/lib/include/uhdlib/transport/dpdk_zero_copy.hpp
new file mode 100644
index 000000000..8dcce6eee
--- /dev/null
+++ b/host/lib/include/uhdlib/transport/dpdk_zero_copy.hpp
@@ -0,0 +1,45 @@
+//
+// Copyright 2018 Ettus Research, a National Instruments Company
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+
+#ifndef DPDK_ZERO_COPY_HPP
+#define DPDK_ZERO_COPY_HPP
+
+#include <uhdlib/transport/dpdk_common.hpp>
+#include <uhd/types/device_addr.hpp>
+#include <uhd/transport/zero_copy.hpp>
+#include <boost/shared_ptr.hpp>
+#include <string>
+
+
+namespace uhd { namespace transport {
+
+/*!
+ * A zero copy transport interface to the dpdk DMA library.
+ */
+class dpdk_zero_copy : public virtual zero_copy_if {
+public:
+    typedef boost::shared_ptr<dpdk_zero_copy> sptr;
+
+    static sptr make(
+        const struct uhd_dpdk_ctx &ctx,
+        const unsigned int dpdk_port_id,
+        const std::string &addr,
+        const std::string &remote_port,
+        const std::string &local_port, /* 0 = auto-assign */
+        const zero_copy_xport_params &default_buff_args,
+        const device_addr_t &hints
+    );
+
+    virtual uint16_t get_local_port(void) const = 0;
+
+    virtual std::string get_local_addr(void) const = 0;
+
+    virtual uint32_t get_drop_count(void) const = 0;
+};
+
+}} // namespace uhd::transport
+
+#endif /* DPDK_ZERO_COPY_HPP */