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authorSugandha Gupta <sugandha.gupta@ettus.com>2019-01-25 17:36:26 -0800
committerBrent Stapleton <brent.stapleton@ettus.com>2019-05-01 15:17:23 -0700
commitfe3fa1dd31b6da9c90cf181d64d6829313804cdd (patch)
tree2e81322cfe66e3e5cc1cb0ec58b29c7d3199e609 /host/lib/rfnoc/source_block_ctrl_base.cpp
parent178b35569b1a25180a80a23b945b10b04c9f10f5 (diff)
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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.
Diffstat (limited to 'host/lib/rfnoc/source_block_ctrl_base.cpp')
-rw-r--r--host/lib/rfnoc/source_block_ctrl_base.cpp10
1 files changed, 10 insertions, 0 deletions
diff --git a/host/lib/rfnoc/source_block_ctrl_base.cpp b/host/lib/rfnoc/source_block_ctrl_base.cpp
index efdf94e9f..2ddb455a1 100644
--- a/host/lib/rfnoc/source_block_ctrl_base.cpp
+++ b/host/lib/rfnoc/source_block_ctrl_base.cpp
@@ -124,6 +124,16 @@ void source_block_ctrl_base::configure_flow_control_out(const bool enable_fc_out
sr_write(SR_FLOW_CTRL_EN, config, block_port);
}
+size_t source_block_ctrl_base::get_mtu(size_t block_port) const
+{
+ if (_tree->exists(_root_path / "mtu" / std::to_string(block_port))) {
+ return _tree->access<size_t>(_root_path / "mtu" / std::to_string(block_port))
+ .get();
+ }
+ return 0;
+}
+
+
/***********************************************************************
* Hooks
**********************************************************************/