diff options
Diffstat (limited to 'host/lib')
| -rw-r--r-- | host/lib/usrp/x300/x300_impl.cpp | 12 | ||||
| -rw-r--r-- | host/lib/usrp/x300/x300_impl.hpp | 22 |
2 files changed, 19 insertions, 15 deletions
diff --git a/host/lib/usrp/x300/x300_impl.cpp b/host/lib/usrp/x300/x300_impl.cpp index 959245135..494598bf3 100644 --- a/host/lib/usrp/x300/x300_impl.cpp +++ b/host/lib/usrp/x300/x300_impl.cpp @@ -1025,14 +1025,14 @@ x300_impl::~x300_impl(void) } } -uint32_t x300_impl::allocate_pcie_dma_chan(const uhd::sid_t &tx_sid, const xport_type_t xport_type) +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; if (xport_type == CTRL) { return CTRL_CHANNEL; } else { - // sid_t has no comparison defined + // sid_t has no comparison defined, so we need to convert it uint32_t uint32_t raw_sid = tx_sid.get(); if (_dma_chan_pool.count(raw_sid) == 0) { @@ -1067,10 +1067,10 @@ uhd::both_xports_t x300_impl::make_transport( xports.send_sid = this->allocate_sid(mb, address, X300_SRC_ADDR0, X300_XB_DST_PCI); xports.recv_sid = xports.send_sid.reversed(); - uint32_t dma_channel_num = allocate_pcie_dma_chan(xports.send_sid, xport_type); + uint32_t dma_channel_num = mb.allocate_pcie_dma_chan(xports.send_sid, xport_type); if (xport_type == CTRL) { //Transport for control stream - if (_ctrl_dma_xport.get() == NULL) { + if (not mb.ctrl_dma_xport) { //One underlying DMA channel will handle //all control traffic zero_copy_xport_params ctrl_buff_args; @@ -1082,10 +1082,10 @@ uhd::both_xports_t x300_impl::make_transport( zero_copy_if::sptr base_xport = nirio_zero_copy::make( mb.rio_fpga_interface, dma_channel_num, ctrl_buff_args, uhd::device_addr_t()); - _ctrl_dma_xport = muxed_zero_copy_if::make(base_xport, extract_sid_from_pkt, X300_PCIE_MAX_MUXED_XPORTS); + mb.ctrl_dma_xport = muxed_zero_copy_if::make(base_xport, extract_sid_from_pkt, X300_PCIE_MAX_MUXED_XPORTS); } //Create a virtual control transport - xports.recv = _ctrl_dma_xport->make_stream(xports.recv_sid.get_dst()); + xports.recv = mb.ctrl_dma_xport->make_stream(xports.recv_sid.get_dst()); } else { //Transport for data stream default_buff_args.send_frame_size = diff --git a/host/lib/usrp/x300/x300_impl.hpp b/host/lib/usrp/x300/x300_impl.hpp index ff18b1a22..db5396008 100644 --- a/host/lib/usrp/x300/x300_impl.hpp +++ b/host/lib/usrp/x300/x300_impl.hpp @@ -191,6 +191,19 @@ private: std::string current_refclk_src; std::vector<uhd::rfnoc::x300_radio_ctrl_impl::sptr> radios; + + // PCIe specific components: + + //! Maps SID -> DMA channel + std::map<uint32_t, uint32_t> _dma_chan_pool; + //! Control transport for one PCIe connection + uhd::transport::muxed_zero_copy_if::sptr ctrl_dma_xport; + + /*! Allocate or return a previously allocated PCIe channel pair + * + * Note the SID is always the transmit SID (i.e. from host to device). + */ + uint32_t allocate_pcie_dma_chan(const uhd::sid_t &tx_sid, const xport_type_t xport_type); }; std::vector<mboard_members_t> _mb; @@ -224,15 +237,6 @@ private: */ frame_size_t determine_max_frame_size(const std::string &addr, const frame_size_t &user_mtu); - std::map<uint32_t, uint32_t> _dma_chan_pool; - uhd::transport::muxed_zero_copy_if::sptr _ctrl_dma_xport; - - /*! Allocate or return a previously allocated PCIe channel pair - * - * Note the SID is always the transmit SID (i.e. from host to device). - */ - uint32_t allocate_pcie_dma_chan(const uhd::sid_t &tx_sid, const xport_type_t xport_type); - //////////////////////////////////////////////////////////////////// // //Caching for transport interface re-use -- like sharing a DMA. |