rfnoc: Added link/graph specific stream managers

- Fleshed out mb_iface
- Managers currently only export ctrl APIs. Data APIs TBD

1 files changed, 85 insertions, 0 deletions

diff --git a/host/lib/include/uhdlib/rfnoc/graph_stream_manager.hpp b/host/lib/include/uhdlib/rfnoc/graph_stream_manager.hpp
new file mode 100644
index 000000000..81657453d
--- /dev/null
+++ b/host/lib/include/uhdlib/rfnoc/graph_stream_manager.hpp
@@ -0,0 +1,85 @@
+//
+// Copyright 2019 Ettus Research, a National Instruments Brand
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+
+#ifndef INCLUDED_LIBUHD_RFNOC_GRAPH_STREAM_MANAGER_HPP
+#define INCLUDED_LIBUHD_RFNOC_GRAPH_STREAM_MANAGER_HPP
+
+#include <uhdlib/rfnoc/chdr_packet.hpp>
+#include <uhdlib/rfnoc/client_zero.hpp>
+#include <uhdlib/rfnoc/ctrlport_endpoint.hpp>
+#include <uhdlib/rfnoc/epid_allocator.hpp>
+#include <uhdlib/rfnoc/mb_iface.hpp>
+#include <functional>
+#include <memory>
+#include <set>
+
+namespace uhd { namespace rfnoc {
+
+/*! A class that is responsible managing all data endpoints, control endpoints and client
+ * zero instances accessible through this graph. There must be one instance of this
+ * class per graph
+ */
+class graph_stream_manager
+{
+public:
+    using uptr = std::unique_ptr<graph_stream_manager>;
+
+    virtual ~graph_stream_manager() = 0;
+
+    /*! \brief Get all the local devices that can be taken from this graph
+     *
+     * \return A vector of IDs of all local devices
+     */
+    virtual std::vector<device_id_t> get_local_devices() const = 0;
+
+    /*! \brief Get all the endpoints reachable from this graph
+     *
+     * \return A set of addresses for all reachable endpoints
+     */
+    virtual const std::set<sep_addr_t>& get_reachable_endpoints() const = 0;
+
+    /*! \brief Initialize a control endpoint to the specified destination
+     *
+     * \param dst_addr The physical address of the destination endpoint
+     * \param via_device The preference for the device to take to get to the destination
+     * \return A pair (source, destination) endpoint IDs for the control stream
+     */
+    virtual sep_id_pair_t init_ctrl_stream(
+        sep_addr_t dst_addr, device_id_t via_device = NULL_DEVICE_ID) = 0;
+
+    /*! \brief Get a register iface (ctrlport endpoint) to a particular block
+     *
+     * \param dst_epid The endpoint ID of the destination
+     * \param block_index The index of the block in the device
+     * \param client_clk The clock that is driving the ctrlport slave
+     * \param timebase_clk The clock that is driving the timebase
+     * \param via_device The preference for the device to take to get to the destination
+     * \return An interface to the ctrlport endpoint
+     */
+    virtual ctrlport_endpoint::sptr get_block_register_iface(sep_id_t dst_epid,
+        uint16_t block_index,
+        const clock_iface& client_clk,
+        const clock_iface& timebase_clk,
+        device_id_t via_device = NULL_DEVICE_ID) = 0;
+
+    /*! \brief Get a pointer to the client zero instance for the specified EPID
+     *
+     * \param dst_epid The endpoint ID of the destination
+     * \param via_device The preference for the device to take to get to the destination
+     * \return An interface to the client zero instance
+     */
+    virtual detail::client_zero::sptr get_client_zero(
+        sep_id_t dst_epid, device_id_t via_device = NULL_DEVICE_ID) const = 0;
+
+    static uptr make(const chdr::chdr_packet_factory& pkt_factory,
+        const epid_allocator::sptr& epid_alloc,
+        const std::vector<std::pair<device_id_t, mb_iface*>>& links);
+
+}; // class graph_stream_manager
+
+}} /* namespace uhd::rfnoc */
+
+#endif /* INCLUDED_LIBUHD_RFNOC_GRAPH_STREAM_MANAGER_HPP */