diff options
Diffstat (limited to 'host/lib/usrp/x300/x300_impl.cpp')
| -rw-r--r-- | host/lib/usrp/x300/x300_impl.cpp | 63 |
1 files changed, 48 insertions, 15 deletions
diff --git a/host/lib/usrp/x300/x300_impl.cpp b/host/lib/usrp/x300/x300_impl.cpp index 08865f9a6..4601b2789 100644 --- a/host/lib/usrp/x300/x300_impl.cpp +++ b/host/lib/usrp/x300/x300_impl.cpp @@ -542,6 +542,8 @@ void x300_impl::setup_mb(const size_t mb_i, const uhd::device_addr_t &dev_addr) eth_addrs.push_back(eth0_addr); mb.next_src_addr = 0; //Host source address for blocks + mb.next_tx_src_addr = 0; + mb.next_rx_src_addr = 0; if (dev_addr.has_key("second_addr")) { std::string eth1_addr = dev_addr["second_addr"]; @@ -1057,9 +1059,12 @@ x300_impl::~x300_impl(void) uint32_t x300_impl::mboard_members_t::allocate_pcie_dma_chan(const uhd::sid_t &tx_sid, const xport_type_t xport_type) { static const uint32_t CTRL_CHANNEL = 0; - static const uint32_t FIRST_DATA_CHANNEL = 1; + static const uint32_t ASYNC_MSG_CHANNEL = 1; + static const uint32_t FIRST_DATA_CHANNEL = 2; if (xport_type == CTRL) { return CTRL_CHANNEL; + } else if (xport_type == ASYNC_MSG) { + return ASYNC_MSG_CHANNEL; } else { // sid_t has no comparison defined, so we need to convert it uint32_t uint32_t raw_sid = tx_sid.get(); @@ -1081,6 +1086,24 @@ static uint32_t extract_sid_from_pkt(void* pkt, size_t) { return uhd::sid_t(uhd::wtohx(static_cast<const uint32_t*>(pkt)[1])).get_dst(); } +static uhd::transport::muxed_zero_copy_if::sptr make_muxed_pcie_msg_xport +( + uhd::niusrprio::niusrprio_session::sptr rio_fpga_interface, + uint32_t dma_channel_num, + size_t max_muxed_ports +) { + zero_copy_xport_params buff_args; + buff_args.send_frame_size = X300_PCIE_MSG_FRAME_SIZE; + buff_args.recv_frame_size = X300_PCIE_MSG_FRAME_SIZE; + buff_args.num_send_frames = X300_PCIE_MSG_NUM_FRAMES * max_muxed_ports; + buff_args.num_recv_frames = X300_PCIE_MSG_NUM_FRAMES * max_muxed_ports; + + zero_copy_if::sptr base_xport = nirio_zero_copy::make( + rio_fpga_interface, dma_channel_num, + buff_args, uhd::device_addr_t()); + return muxed_zero_copy_if::make(base_xport, extract_sid_from_pkt, max_muxed_ports); +} + uhd::both_xports_t x300_impl::make_transport( const uhd::sid_t &address, const xport_type_t xport_type, @@ -1103,19 +1126,25 @@ uhd::both_xports_t x300_impl::make_transport( if (not mb.ctrl_dma_xport) { //One underlying DMA channel will handle //all control traffic - zero_copy_xport_params ctrl_buff_args; - ctrl_buff_args.send_frame_size = X300_PCIE_MSG_FRAME_SIZE; - ctrl_buff_args.recv_frame_size = X300_PCIE_MSG_FRAME_SIZE; - ctrl_buff_args.num_send_frames = X300_PCIE_MSG_NUM_FRAMES * X300_PCIE_MAX_MUXED_XPORTS; - ctrl_buff_args.num_recv_frames = X300_PCIE_MSG_NUM_FRAMES * X300_PCIE_MAX_MUXED_XPORTS; - - zero_copy_if::sptr base_xport = nirio_zero_copy::make( - mb.rio_fpga_interface, dma_channel_num, - ctrl_buff_args, uhd::device_addr_t()); - mb.ctrl_dma_xport = muxed_zero_copy_if::make(base_xport, extract_sid_from_pkt, X300_PCIE_MAX_MUXED_XPORTS); + mb.ctrl_dma_xport = make_muxed_pcie_msg_xport( + mb.rio_fpga_interface, + dma_channel_num, + X300_PCIE_MAX_MUXED_CTRL_XPORTS); } //Create a virtual control transport xports.recv = mb.ctrl_dma_xport->make_stream(xports.recv_sid.get_dst()); + } else if (xport_type == ASYNC_MSG) { + //Transport for async message stream + if (not mb.async_msg_dma_xport) { + //One underlying DMA channel will handle + //all async message traffic + mb.async_msg_dma_xport = make_muxed_pcie_msg_xport( + mb.rio_fpga_interface, + dma_channel_num, + X300_PCIE_MAX_MUXED_ASYNC_XPORTS); + } + //Create a virtual async message transport + xports.recv = mb.async_msg_dma_xport->make_stream(xports.recv_sid.get_dst()); } else { //Transport for data stream default_buff_args.send_frame_size = @@ -1157,12 +1186,16 @@ uhd::both_xports_t x300_impl::make_transport( } else if (mb.xport_path == "eth") { // Decide on the IP/Interface pair based on the endpoint index - std::string interface_addr = mb.eth_conns[mb.next_src_addr].addr; + size_t &next_src_addr = + xport_type == TX_DATA ? mb.next_tx_src_addr : + xport_type == RX_DATA ? mb.next_rx_src_addr : + mb.next_src_addr; + std::string interface_addr = mb.eth_conns[next_src_addr].addr; const uint32_t xbar_src_addr = - mb.next_src_addr==0 ? X300_SRC_ADDR0 : X300_SRC_ADDR1; + next_src_addr==0 ? X300_SRC_ADDR0 : X300_SRC_ADDR1; const uint32_t xbar_src_dst = - mb.eth_conns[mb.next_src_addr].type==X300_IFACE_ETH0 ? X300_XB_DST_E0 : X300_XB_DST_E1; - mb.next_src_addr = (mb.next_src_addr + 1) % mb.eth_conns.size(); + mb.eth_conns[next_src_addr].type==X300_IFACE_ETH0 ? X300_XB_DST_E0 : X300_XB_DST_E1; + next_src_addr = (next_src_addr + 1) % mb.eth_conns.size(); xports.send_sid = this->allocate_sid(mb, address, xbar_src_addr, xbar_src_dst); xports.recv_sid = xports.send_sid.reversed(); |