diff options
Diffstat (limited to 'host/lib/usrp/mpmd/mpmd_link_if_ctrl_liberio.cpp')
| -rw-r--r-- | host/lib/usrp/mpmd/mpmd_link_if_ctrl_liberio.cpp | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/host/lib/usrp/mpmd/mpmd_link_if_ctrl_liberio.cpp b/host/lib/usrp/mpmd/mpmd_link_if_ctrl_liberio.cpp deleted file mode 100644 index bf383f44d..000000000 --- a/host/lib/usrp/mpmd/mpmd_link_if_ctrl_liberio.cpp +++ /dev/null @@ -1,126 +0,0 @@ -// -// Copyright 2017 Ettus Research, National Instruments Company -// -// SPDX-License-Identifier: GPL-3.0-or-later -// - -#include "mpmd_link_if_ctrl_liberio.hpp" -#include <uhd/rfnoc/constants.hpp> -#include <uhd/utils/byteswap.hpp> -#include <uhd/utils/log.hpp> -#include <uhdlib/transport/inline_io_service.hpp> -#include <uhdlib/transport/liberio_link.hpp> - -using namespace uhd; -using namespace uhd::transport; -using namespace uhd::mpmd::xport; - -const uhd::rfnoc::chdr::chdr_packet_factory mpmd_link_if_ctrl_liberio::_pkt_factory( - uhd::rfnoc::CHDR_W_64, ENDIANNESS_LITTLE); - -namespace { - -//! The default MTU will be this number times the page size -const size_t LIBERIO_PAGES_PER_BUF = 2; -//! The default MTU -const size_t LIBERIO_DEFAULT_MTU = LIBERIO_PAGES_PER_BUF * getpagesize(); -//! The default link_rate (8 Bytes * 200 MHz) -const double LIBERIO_DEFAULT_LINK_RATE = 200e6 * 8; -//! Number of descriptors that liberio allocates (receive) -const size_t LIBERIO_NUM_RECV_FRAMES = 128; -//! Number of descriptors that liberio allocates (send) -const size_t LIBERIO_NUM_SEND_FRAMES = 128; -//! MTU for largest non-data packet accepted (arbitrarily-determined...) -// Note: Management frames must fit here, and it determines the padded RX size -const size_t LIBERIO_MAX_NONDATA_PACKET_SIZE = 128; - -std::vector<mpmd_link_if_ctrl_liberio::liberio_link_info_t> -get_liberio_info_from_xport_info( - const mpmd_link_if_mgr::xport_info_list_t& link_info_list) -{ - std::vector<mpmd_link_if_ctrl_liberio::liberio_link_info_t> result; - for (const auto& link_info : link_info_list) { - if (!link_info.count("tx_dev")) { - UHD_LOG_ERROR("MPMD::XPORT::LIBERIO", - "Invalid response from get_chdr_link_options()! No `tx_dev' key!"); - throw uhd::runtime_error( - "Invalid response from get_chdr_link_options()! No `tx_dev' key!"); - } - if (!link_info.count("rx_dev")) { - UHD_LOG_ERROR("MPMD::XPORT::LIBERIO", - "Invalid response from get_chdr_link_options()! No `rx_dev' key!"); - throw uhd::runtime_error( - "Invalid response from get_chdr_link_options()! No `rx_dev' key!"); - } - const std::string tx_dev = link_info.at("tx_dev"); - const std::string rx_dev = link_info.at("rx_dev"); - result.emplace_back( - mpmd_link_if_ctrl_liberio::liberio_link_info_t{tx_dev, rx_dev}); - } - - return result; -} - -} // namespace - - -/****************************************************************************** - * Structors - *****************************************************************************/ -mpmd_link_if_ctrl_liberio::mpmd_link_if_ctrl_liberio(const uhd::device_addr_t& mb_args, - const mpmd_link_if_mgr::xport_info_list_t& xport_info) - : _mb_args(mb_args) - , _recv_args(filter_args(mb_args, "recv")) - , _send_args(filter_args(mb_args, "send")) - , _dma_channels(get_liberio_info_from_xport_info(xport_info)) - , _link_rate(LIBERIO_DEFAULT_LINK_RATE) // FIXME -{ - // nop -} - -/****************************************************************************** - * API - *****************************************************************************/ -uhd::transport::both_links_t mpmd_link_if_ctrl_liberio::get_link(const size_t link_idx, - const uhd::transport::link_type_t link_type, - const uhd::device_addr_t& link_args) -{ - UHD_ASSERT_THROW(link_idx == 0); - if (_next_channel >= _dma_channels.size()) { - UHD_LOG_ERROR( - "MPMD::XPORT::LIBERIO", "Cannot create liberio link: DMA channels exhausted"); - throw uhd::runtime_error("Cannot create liberio link: DMA channels exhausted"); - } - auto link_info = _dma_channels.at(_next_channel++); - - /* FIXME: Should have common infrastructure for creating I/O services */ - auto io_srv = uhd::transport::inline_io_service::make(); - link_params_t link_params; - if (link_type == link_type_t::RX_DATA) { - link_params.recv_frame_size = get_mtu(uhd::RX_DIRECTION); // FIXME - link_params.send_frame_size = LIBERIO_MAX_NONDATA_PACKET_SIZE; // FIXME - } else if (link_type == link_type_t::TX_DATA) { - link_params.recv_frame_size = LIBERIO_MAX_NONDATA_PACKET_SIZE; // FIXME - link_params.send_frame_size = get_mtu(uhd::TX_DIRECTION); // FIXME - } else { - link_params.recv_frame_size = LIBERIO_MAX_NONDATA_PACKET_SIZE; // FIXME - link_params.send_frame_size = LIBERIO_MAX_NONDATA_PACKET_SIZE; // FIXME - } - link_params.num_recv_frames = LIBERIO_NUM_RECV_FRAMES; // FIXME - link_params.num_send_frames = LIBERIO_NUM_SEND_FRAMES; // FIXME - - // Liberio doesn't need in-band flow control, so pretend have very large buffers - link_params.recv_buff_size = std::numeric_limits<size_t>::max(); - link_params.send_buff_size = std::numeric_limits<size_t>::max(); - auto link = uhd::transport::liberio_link::make( - link_info.first, link_info.second, link_params); - io_srv->attach_send_link(link); - io_srv->attach_recv_link(link); - return std::make_tuple( - link, link_params.send_buff_size, link, link_params.recv_buff_size, false, true); -} - -size_t mpmd_link_if_ctrl_liberio::get_mtu(const uhd::direction_t /*dir*/) const -{ - return LIBERIO_DEFAULT_MTU; // FIXME -} |