From 2960e559515348dce83bfdbdd6ef39e551235045 Mon Sep 17 00:00:00 2001 From: Sugandha Gupta Date: Fri, 25 Jan 2019 17:36:26 -0800 Subject: device3: Constraint send/recv_frame_size based on down/upstream MTU We need to properly contraint the send/recv_frame_size based on the minimum MTU of all the down/upstream blocks. This fixes the issue with E310 tx/rx streaming as it has smaller MTU sizes than the other usrps. --- host/lib/usrp/mpmd/mpmd_impl.cpp | 4 ++++ host/lib/usrp/mpmd/mpmd_impl.hpp | 3 +++ 2 files changed, 7 insertions(+) (limited to 'host/lib/usrp/mpmd') diff --git a/host/lib/usrp/mpmd/mpmd_impl.cpp b/host/lib/usrp/mpmd/mpmd_impl.cpp index b8ce6cabd..2f3584498 100644 --- a/host/lib/usrp/mpmd/mpmd_impl.cpp +++ b/host/lib/usrp/mpmd/mpmd_impl.cpp @@ -348,6 +348,10 @@ void mpmd_impl::setup_rpc_blocks( } } +size_t mpmd_impl::get_mtu(const size_t mb_index, const uhd::direction_t dir) { + return _mb[mb_index]->get_mtu(dir); +} + /***************************************************************************** * Factory & Registry ****************************************************************************/ diff --git a/host/lib/usrp/mpmd/mpmd_impl.hpp b/host/lib/usrp/mpmd/mpmd_impl.hpp index f74627afa..bdb6bd691 100644 --- a/host/lib/usrp/mpmd/mpmd_impl.hpp +++ b/host/lib/usrp/mpmd/mpmd_impl.hpp @@ -246,6 +246,9 @@ public: uhd::usrp::device3_impl::xport_type_t, const uhd::device_addr_t&); + //! get mtu + size_t get_mtu(const size_t, const uhd::direction_t); + private: uhd::device_addr_t get_rx_hints(size_t mb_index); uhd::device_addr_t get_tx_hints(size_t mb_index); -- cgit v1.2.3