diff options
Diffstat (limited to 'host/lib/usrp/mpmd/mpmd_link_if_ctrl_udp.cpp')
| -rw-r--r-- | host/lib/usrp/mpmd/mpmd_link_if_ctrl_udp.cpp | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/host/lib/usrp/mpmd/mpmd_link_if_ctrl_udp.cpp b/host/lib/usrp/mpmd/mpmd_link_if_ctrl_udp.cpp index bdf088025..7b41ac631 100644 --- a/host/lib/usrp/mpmd/mpmd_link_if_ctrl_udp.cpp +++ b/host/lib/usrp/mpmd/mpmd_link_if_ctrl_udp.cpp @@ -68,8 +68,11 @@ mpmd_link_if_ctrl_udp::udp_link_info_map get_udp_info_from_xport_info( const size_t link_rate = link_info.count("link_rate") ? std::stoul(link_info.at("link_rate")) : MAX_RATE_1GIGE; + const std::string link_type = link_info.at("type"); + const size_t if_mtu = std::stoul(link_info.at("mtu")); result.emplace(link_info.at("ipv4"), - mpmd_link_if_ctrl_udp::udp_link_info_t{udp_port, link_rate}); + mpmd_link_if_ctrl_udp::udp_link_info_t{ + udp_port, link_rate, link_type, if_mtu}); } return result; @@ -238,7 +241,15 @@ mpmd_link_if_ctrl_udp::mpmd_link_if_ctrl_udp(const uhd::device_addr_t& mb_args, try { // If MTU discovery fails, we gracefully recover, but declare that // link invalid. - _mtu = std::min(_mtu, discover_mtu_for_ip(ip_addr)); + auto& info = _udp_info.at(ip_addr); + if (info.link_type == "internal") { + UHD_LOG_TRACE("MPMD::XPORT::UDP", + "MTU for internal interface " << ip_addr << " is " + << std::to_string(info.if_mtu)); + _mtu = std::min(_mtu, info.if_mtu); + } else { + _mtu = std::min(_mtu, discover_mtu_for_ip(ip_addr)); + } _available_addrs.push_back(ip_addr); } catch (const uhd::exception& ex) { UHD_LOG_WARNING("MPMD::XPORT::UDP", |