diff options
| -rw-r--r-- | host/lib/usrp/x300/x300_impl.cpp | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/host/lib/usrp/x300/x300_impl.cpp b/host/lib/usrp/x300/x300_impl.cpp index c3ebcd5eb..5930d873c 100644 --- a/host/lib/usrp/x300/x300_impl.cpp +++ b/host/lib/usrp/x300/x300_impl.cpp @@ -571,7 +571,28 @@ void x300_impl::setup_mb(const size_t mb_i, const uhd::device_addr_t &dev_addr) // Detect the frame size on the path to the USRP try { - _max_frame_sizes = determine_max_frame_size(mb.get_pri_eth().addr, req_max_frame_size); + frame_size_t pri_frame_sizes = determine_max_frame_size( + eth_addrs.at(0), req_max_frame_size + ); + + _max_frame_sizes = pri_frame_sizes; + if (eth_addrs.size() > 1) { + frame_size_t sec_frame_sizes = determine_max_frame_size( + eth_addrs.at(1), req_max_frame_size + ); + + // Choose the minimum of the max frame sizes + // to ensure we don't exceed any one of the links' MTU + _max_frame_sizes.recv_frame_size = std::min( + pri_frame_sizes.recv_frame_size, + sec_frame_sizes.recv_frame_size + ); + + _max_frame_sizes.send_frame_size = std::min( + pri_frame_sizes.send_frame_size, + sec_frame_sizes.send_frame_size + ); + } } catch(std::exception &e) { UHD_MSG(error) << e.what() << std::endl; } |