lib: Remove dpdk_zero_copy files

These were left here as a reference.

3 files changed, 0 insertions, 406 deletions

diff --git a/host/lib/include/uhdlib/transport/dpdk_common.hpp b/host/lib/include/uhdlib/transport/dpdk_common.hpp
deleted file mode 100644
index 0db51e80f..000000000
--- a/host/lib/include/uhdlib/transport/dpdk_common.hpp
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// 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 <uhd/utils/noncopyable.hpp>
-#include <array>
-#include <atomic>
-#include <mutex>
-#include <string>
-
-namespace uhd { namespace transport {
-
-class uhd_dpdk_ctx : uhd::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 */
diff --git a/host/lib/include/uhdlib/transport/dpdk_zero_copy.hpp b/host/lib/include/uhdlib/transport/dpdk_zero_copy.hpp
deleted file mode 100644
index 3497f0598..000000000
--- a/host/lib/include/uhdlib/transport/dpdk_zero_copy.hpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// 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 <memory>
-#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 std::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 */
diff --git a/host/lib/include/uhdlib/transport/uhd-dpdk.h b/host/lib/include/uhdlib/transport/uhd-dpdk.h
deleted file mode 100644
index ae7d31383..000000000
--- a/host/lib/include/uhdlib/transport/uhd-dpdk.h
+++ /dev/null
@@ -1,280 +0,0 @@
-//
-// Copyright 2018 Ettus Research, a National Instruments Company
-//
-// SPDX-License-Identifier: GPL-3.0-or-later
-//
-#ifndef _UHD_DPDK_H_
-#define _UHD_DPDK_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <rte_mbuf.h>
-
-/* For MAC address */
-struct eth_addr {
-    uint8_t addr[6];
-};
-
-/* Opaque type representing a socket
- * May NOT be shared between threads
- */
-struct uhd_dpdk_socket;
-
-/* Only support UDP sockets currently */
-enum uhd_dpdk_sock_type {
-    UHD_DPDK_SOCK_UDP = 0,
-    UHD_DPDK_SOCK_TYPE_COUNT
-};
-
-/**
- * Init UHD-DPDK environment, including DPDK's EAL.
- * This will make available information about the DPDK-assigned NIC devices.
- * 
- * @param argc passed directly to rte_eal_init()
- * @param argv passed directly to rte_eal_init()
- *
- * @return Returns negative error code if there were issues, else 0
- */
-int uhd_dpdk_init(int argc, const char **argv);
-
-/**
- * Start UHD-DPDK networking stack. Bring ports up (link UP).
- * uhd_dpdk_init() must be called first.
- *
- * Offload capabilities will be used if available
- *
- * @param num_ports number of network interfaces to map
- * @param port_thread_mapping array of num_ports entries specifying which thread
- *     will drive the I/O for a given port (determined by array index)
- * @param num_mbufs number of packets in each packet buffer pool (multiplied by num_ports)
- *     There is one RX and one TX buffer pool per CPU socket
- * @param mbuf_cache_size Number of packet buffers to put in core-local cache
- * @param mtu Maximum frame size
- *
- * @return Returns negative error code if there were issues, else 0
- */
-int uhd_dpdk_start(unsigned int num_ports, int *port_thread_mapping,
-                   int num_mbufs, int mbuf_cache_size, int mtu);
-
-/**
- * @return Returns number of ports registered to DPDK.
- *         Returns negative error value if uhd-dpdk hasn't been init'd
- */
-int uhd_dpdk_port_count(void);
-
-/**
- * @return Returns 0 if link is down, 1 if link is up, and negative error code
- *         if error occurred.
- */
-int uhd_dpdk_port_link_status(unsigned int portid);
-
-/**
- * @return Returns Ethernet MAC address of requested port
- *
- * @param portid ID number of network interface
- */
-struct eth_addr uhd_dpdk_get_eth_addr(unsigned int portid);
-
-/**
- * Get IPv4 address of requested port
- *
- * @param portid ID number of network interface
- * @param ipv4_addr pointer to uint32_t where ipv4 address is stored
- *     Must be non-NULL
- * @param netmask pointer to uint32_t where netmask is stored
- *     May be left NULL
- *
- * @return Returns
- *  0 = success
- *  nonzero = failure
- */
-int uhd_dpdk_get_ipv4_addr(unsigned int portid, uint32_t *ipv4_addr, uint32_t *netmask);
-
-/**
- * Sets IPv4 address of requested port
- *
- * @param portid ID number of network interface
- * @param ipv4_addr must be in network format
- * @param netmask must be in network format
- *
- * @return Return values:
- * 0 = success
- * nonzero = failure
- */
-int uhd_dpdk_set_ipv4_addr(unsigned int portid, uint32_t ipv4_addr, uint32_t netmask);
-
-/**
- * Create new socket of type sock_type on port portid
- * Copies needed info from sockarg
- * Do NOT share struct uhd_dpdk_socket between threads!
- *
- * @param portid ID number of network interface
- * @param t Type of socket to create (only UDP supported currently)
- * @param sockarg Pointer to arguments for corresponding socket type
- *
- * @return Returns pointer to socket structure on success, else NULL
- */
-struct uhd_dpdk_socket* uhd_dpdk_sock_open(unsigned int portid,
-                                           enum uhd_dpdk_sock_type t, void *sockarg);
-
-/**
- * Close socket created by uhd_dpdk_sock_open
- *
- * Note: Outstanding packet buffers must still be freed by user
- *
- * @param sock Socket to close
- *
- * @return Returns
- *  0 = success
- *  nonzero = failure
- */
-int uhd_dpdk_sock_close(struct uhd_dpdk_socket *sock);
-
-/**
- * Arguments for a UDP socket
- * All address/port data should be provided in network format
- */
-struct uhd_dpdk_sockarg_udp {
-    /*! True for TX socket, false for RX socket */
-    bool     is_tx;
-    /*! True to filter broadcast packets, else recv */
-    bool     filter_bcast;
-    /*! Local udp port. This is dst_port for RX, src_port for TX */
-    uint16_t local_port;
-    /*! Remote udp port. This is dst_port for TX */
-    uint16_t remote_port;
-    /*! IPv4 address for destination (TX) */
-    uint32_t dst_addr;
-    /*! Number of buffers in ring */
-    size_t   num_bufs;
-};
-
-/**
- * Brings all ports and threads down in preparation for a clean program exit
- *
- * All sockets will need to be closed by the user for a thread to terminate in
- * this function.
- */
-int uhd_dpdk_destroy(void);
-
-/**
- * Requests num_bufs buffers from sock. Places pointers to buffers in bufs table.
- *
- * @param sock pointer to socket
- * @param bufs pointer to array of buffers (to store buffer locations)
- * @param num_bufs number of buffers requested
- * @param timeout Time (in us) to wait for a buffer
- *
- * @return Returns number of buffers retrieved or negative error code
- */
-int uhd_dpdk_request_tx_bufs(struct uhd_dpdk_socket *sock, struct rte_mbuf **bufs, unsigned int num_bufs, int timeout);
-
-/**
- * Enqueues num_bufs buffers in sock TX buffer. Uses pointers to buffers in bufs table.
- *
- * @param sock pointer to socket
- * @param bufs pointer to array of buffers (to retrieve buffer locations)
- * @param num_bufs number of buffers requested
- *
- * @return Returns number of buffers enqueued or negative error code
- */
-int uhd_dpdk_send(struct uhd_dpdk_socket *sock, struct rte_mbuf **bufs, unsigned int num_bufs);
-
-/**
- * Dequeues num_bufs buffers from sock RX buffer. Uses pointers to buffers in bufs table.
- *
- * @param sock pointer to socket
- * @param bufs pointer to array of buffers (to store buffer locations)
- * @param num_bufs number of buffers requested
- * @param timeout Time (in us) to wait for a packet
- *
- * @return Returns number of buffers dequeued or negative error code
- *
- * NOTE: MUST free buffers with uhd_dpdk_free_buf once finished
- */
-int uhd_dpdk_recv(struct uhd_dpdk_socket *sock, struct rte_mbuf **bufs,
-                  unsigned int num_bufs, int timeout);
-
-/**
- * Frees buffer previously received from uhd_dpdk_recv
- *      (or unused ones from uhd_dpdk_request_tx_bufs)
- *
- * @param buf pointer to packet buffer
- */
-void uhd_dpdk_free_buf(struct rte_mbuf *buf);
-
-/**
- * Returns pointer to start of data segment of packet buffer
- *
- * @param sock Socket associated with packet buffer
- * @param buf pointer to packet buffer
- */
-void * uhd_dpdk_buf_to_data(struct uhd_dpdk_socket *sock, struct rte_mbuf *buf);
-
-/**
- * Returns size of data segment of packet buffer (in bytes)
- *
- * This is protocol-dependent. A UDP socket will return the UDP payload size.
- *
- * @param sock Socket associated with packet buffer
- * @param buf pointer to packet buffer
- *
- * @return Return 0 for success, else failed
- */
-int uhd_dpdk_get_len(struct uhd_dpdk_socket *sock, struct rte_mbuf *buf);
-
-/**
- * Get IPv4 address of sender (for UDP RX socket)
- *
- * @param sock Socket associated with packet buffer
- * @param buf pointer to packet buffer
- * @param ipv4_addr pointer to buffer where ipv4 address will be written
- *
- * @return Return 0 for success, else failed
- */
-int uhd_dpdk_get_src_ipv4(struct uhd_dpdk_socket *sock, struct rte_mbuf *buf,
-                          uint32_t *ipv4_addr);
-
-/**
- * Get info (local port, remote port, dst addr, etc.) for UDP socket
- *
- * @param sock Socket to get information from
- * @param sockarg Pointer to location where information will be stored
- *
- * @return Return 0 for success, else failed
- */
-int uhd_dpdk_udp_get_info(struct uhd_dpdk_socket *sock, struct uhd_dpdk_sockarg_udp *sockarg);
-
-
-/***********************************************
- * Statistics
- ***********************************************/
-/**
- * Get dropped packet count of provided socket
- *
- * @param sock Socket to get information from
- * @param count Pointer to location where information will be stored
- *
- * @return Return 0 for success, else failed
- */
-int uhd_dpdk_get_drop_count(struct uhd_dpdk_socket *sock, size_t *count);
-
-/**
- * Get transferred packet count of provided socket
- * Currently only tracks received packets (i.e. for RX)
- *
- * @param sock Socket to get information from
- * @param count Pointer to location where information will be stored
- *
- * @return Return 0 for success, else failed
- */
-int uhd_dpdk_get_xfer_count(struct uhd_dpdk_socket *sock, size_t *count);
-
-#ifdef __cplusplus
-}
-#endif
-#endif /* _UHD_DPDK_H_ */