Tiago Mück has uploaded this change for review. ( https://gem5-review.googlesource.com/c/public/gem5/+/31256 )

Change subject: mem-ruby: Network can use custom data msg size
......................................................................

mem-ruby: Network can use custom data msg size

The size for network data messages can be set using a configuration
parameter. This is necessary so line transfers may be split in multiple
messages at the protocol level.

Change-Id: I86a272de597b04a898071db412b921cbe1651ef0
Signed-off-by: Tiago Mück <tiago.m...@arm.com>
---
M src/mem/ruby/network/Network.cc
M src/mem/ruby/network/Network.py
2 files changed, 9 insertions(+), 1 deletion(-)



diff --git a/src/mem/ruby/network/Network.cc b/src/mem/ruby/network/Network.cc
index ba847e5..2f3a8a0 100644
--- a/src/mem/ruby/network/Network.cc
+++ b/src/mem/ruby/network/Network.cc
@@ -152,7 +152,9 @@
 void
 Network::init()
 {
-    m_data_msg_size = RubySystem::getBlockSizeBytes() + m_control_msg_size;
+    fatal_if(params()->data_msg_size > RubySystem::getBlockSizeBytes(),
+             "Invalid network data message size");
+    m_data_msg_size = params()->data_msg_size + m_control_msg_size;
 }

 uint32_t
diff --git a/src/mem/ruby/network/Network.py b/src/mem/ruby/network/Network.py
index 5acad60..4e6ed25 100644
--- a/src/mem/ruby/network/Network.py
+++ b/src/mem/ruby/network/Network.py
@@ -25,6 +25,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 from m5.params import *
+from m5.proxy import *
 from m5.objects.ClockedObject import ClockedObject
 from m5.objects.BasicLink import BasicLink

@@ -51,3 +52,8 @@

     slave = VectorSlavePort("CPU slave port")
     master = VectorMasterPort("CPU master port")
+
+    data_msg_size = Param.Int(Parent.block_size_bytes,
+ "Size of data messages. Defaults to the parent "
+                            "RubySystem cache line size.")
+

--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I86a272de597b04a898071db412b921cbe1651ef0
Gerrit-Change-Number: 31256
Gerrit-PatchSet: 1
Gerrit-Owner: Tiago Mück <tiago.m...@arm.com>
Gerrit-MessageType: newchange
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