v0.45.5

README.md

@@ -378,6 +378,14 @@ It may use files in these directories for DMA buffers:
 The program will report the exact file used. 
 They can be inspected manually if needed, e.g. with hexdump: `hexdump -e '"%07_ax" " | " 4/8 "%08x " "\n"' [filename]`
 
+Example usage:
+```
+for i in 0 1; do  roc-config --i=#$i --clock=local --links=0-1 --tf=32  --byp  --loop --dyn --force --datapathmode=streaming; done
+roc-bench-dma --i=#0 --fast --data=FEE --bypass
+o2-roc-ctp-emulator --id=#0 --trigger-mode=continuous  --init-orbit=0x1e
+```
+
+
 ### roc-cleanup
 In the event of a serious crash, such as a segfault, it may be necessary to clean up and reset.
 This tool serves this purpose and is intended to be run as root. Be aware that this will make every

doc/releaseNotes.md

@@ -84,3 +84,6 @@ This file describes the main feature changes for released versions of ReadoutCar
 
 ## v0.45.4 - 26/09/2024
 - Updated list of firmwares.
+
+## v0.45.5 - 19/12/2024
+- Added internal fallback when hugeadm tool not available to setup hugepages (e.g.for RHEL9).

src/ReadoutCardVersion.cxx

@@ -11,7 +11,7 @@
 
 #include "ReadoutCard/Version.h"
 
-#define O2_READOUTCARD_VERSION "0.45.3"
+#define O2_READOUTCARD_VERSION "0.45.5"
 
 namespace o2
 {

src/o2-roc-setup-hugetlbfs.sh

@@ -13,6 +13,13 @@ HUGEPAGES_1G_SYSFILE=/sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages
 HUGEPAGES_1G_NUMBER=6
 
 
+which hugeadm
+if [ "$?" == "0" ]; then
+  FOUND_HUGEADM=1
+else
+  echo "hugeadm command not found, using internal fallback"
+fi
+
 # Allocate hugepages of each type
 echo -n "File '${HUGEPAGES_2M_CONF}' "
 if [ -f $HUGEPAGES_2M_CONF ]; then
@@ -34,15 +41,37 @@ echo $HUGEPAGES_1G_NUMBER > $HUGEPAGES_1G_SYSFILE
 
 # Create hugetlbfs mounts in /var/lib/hugetlbfs/global/...
 echo "Creating hugetlbfs mounts"
-hugeadm --create-global-mounts
+if [ "$FOUND_HUGEADM" == "1" ]; then
+  hugeadm --create-global-mounts
+else
+  for sz in 2M 1G; do
+    MPDIR=/var/lib/hugetlbfs/global/pagesize-${sz}B
+    mountpoint -q $MPDIR
+    if [ "$?" -ne 0 ]; then
+      echo "Mounting $MPDIR"
+      mount -t hugetlbfs -o pagesize=${sz} none $MPDIR
+      chown root:root $MPDIR
+      chmod 1777 $MPDIR
+    else
+      echo "Already mounted: $MPDIR"
+    fi
+  done
+fi
 echo "Setting permissions on hugeltbfs mounts"
 chgrp -R pda /var/lib/hugetlbfs/global/*
 chmod -R g+rwx /var/lib/hugetlbfs/global/*
 
 # Display hugepage status
 echo ""
 echo "Hugepages:"
-hugeadm --pool-list
+if [ "$FOUND_HUGEADM" == "1" ]; then
+  hugeadm --pool-list
+else
+  echo -n "Number of 2MB hugepages: "
+  cat $HUGEPAGES_2M_SYSFILE
+  echo -n "Number of 1GB hugepages: "
+  cat $HUGEPAGES_1G_SYSFILE
+fi
 echo ""
 echo "Use 'echo [number] > /sys/kernel/mm/hugepages/hugepages-[size]/nr_hugepages' to allocate hugepages manually"
 echo "Or set a number in the following conf files and run the script again:"