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::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
: Copyright (c) 2017 Enea AB, Cavium and others.
:
: All rights reserved. This program and the accompanying materials
: are made available under the terms of the Apache License, Version 2.0
: which accompanies this distribution, and is available at
: http://www.apache.org/licenses/LICENSE-2.0
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
Date: Fri, 19 May 2017 20:37:13 +0200
Subject: [PATCH] AArch64: Add CPU details detection
[ Alexandru Avadanii ]
Based on Stan's previous patch for ohai, extend fuel-nailgun-agent
to properly support AArch64 CPUs.
[ Stanislaw Kardach ]
There is currently little human readable detail in /proc/cpuinfo on
arm64 so this patch tries to enchance this information by parsing the
DMI data (using `dmidecode`) and fail gracefully to empty strings
if no information could not be read from there. By no means this
parsing is to be taken as a standardised way of discovering an
arm64 CPU, it is just a suggestion.
Signed-off-by: Stanislaw Kardach <stanislaw.kardach@cavium.com>
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
---
.../0003-AArch64-Add-CPU-details-detection.patch | 130 +++++++++++++++++++++
debian/patches/series | 1 +
2 files changed, 131 insertions(+)
create mode 100644 debian/patches/0003-AArch64-Add-CPU-details-detection.patch
diff --git a/debian/patches/0003-AArch64-Add-CPU-details-detection.patch b/debian/patches/0003-AArch64-Add-CPU-details-detection.patch
new file mode 100644
index 0000000..b9f41f7
--- /dev/null
+++ b/debian/patches/0003-AArch64-Add-CPU-details-detection.patch
@@ -0,0 +1,130 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Sun, 15 Jan 2017 08:09:10 +0100
+Subject: [PATCH 2/4] AArch64: Add CPU details detection
+
+[ Alexandru Avadanii ]
+Based on Stan's previous patch for ohai, extend fuel-nailgun-agent
+to properly support AArch64 CPUs.
+
+[ Stanislaw Kardach ]
+There is currently little human readable detail in /proc/cpuinfo on
+arm64 so this patch tries to enchance this information by parsing the
+DMI data (using `dmidecode`) and fail gracefully to empty strings
+if no information could not be read from there. By no means this
+parsing is to be taken as a standardised way of discovering an
+arm64 CPU, it is just a suggestion.
+
+Signed-off-by: Stanislaw Kardach <stanislaw.kardach@cavium.com>
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+ agent | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 90 insertions(+)
+
+diff --git a/agent b/agent
+index 2c041ec..c3f5d28 100755
+--- a/agent
++++ b/agent
+@@ -288,6 +288,15 @@ class NodeAgent
+ end
+
+ def _get_detailed_cpuinfo
++ case `uname -m`
++ when /aarch64.*/
++ _get_detailed_cpuinfo_for_arm64
++ else # default to x86
++ _get_detailed_cpuinfo_for_x86
++ end
++ end
++
++ def _get_detailed_cpuinfo_for_x86
+ real = {}
+ info = {}
+ info[:total] = 0
+@@ -319,6 +328,87 @@ class NodeAgent
+ info
+ end
+
++ def _get_detailed_cpuinfo_for_arm64
++ cpu_implementers = {
++ "0x41" => "ARM",
++ "0x53" => "Samsung",
++ "0x51" => "Qualcom",
++ "0x43" => "Cavium",
++ "0x50" => "APM"
++ }
++ core_models = {
++ "0xd04" => "cortex-a35",
++ "0xd03" => "cortex-a53",
++ "0xd07" => "cortex-a57",
++ "0xd08" => "cortex-a72",
++ "0x001" => "exynos-m1",
++ "0x800" => "qdf24xx",
++ "0x0a1" => "thunderx",
++ "0x000" => "xgene1",
++ "0xd07.0xd03" => "cortex-a57.cortex-a53",
++ "0xd08.0xd03" => "cortex-a72.cortex-a53"
++ }
++ cpuinfo = {}
++ real_cpus = {}
++ cpu_number = -1
++ current_cpu = nil
++ `dmidecode -t 4 -q`.each_line do |line|
++ case line
++ when /Processor Information/
++ cpu_number +=1
++ real_cpus[cpu_number] = {}
++ when /\s*Manufacturer:\s(.+)/
++ real_cpus[cpu_number][:vendor_id] = $1
++ when /\s*Family:\s(.+)/
++ real_cpus[cpu_number][:family] = $1
++ when /\s*Max Speed:\s(.+)\s*MHz/
++ real_cpus[cpu_number][:mhz] = $1.strip
++ when /\s*Core Enabled:\s(.+)/
++ real_cpus[cpu_number][:cores] = $1
++ end
++ end
++
++ cpu_number = 0
++ File.open("/proc/cpuinfo").each do |line|
++ case line
++ when /processor\s+:\s(.+)/
++ cpuinfo[$1] = {}
++ current_cpu = $1
++ cpu_number += 1
++ phys_id = File.read(
++ "/sys/devices/system/cpu/cpu%d/topology/physical_package_id" %
++ $1).strip
++ i = phys_id.to_i
++ cpuinfo[$1][:core_id] =
++ File.read("/sys/devices/system/cpu/cpu%d/topology/core_id" %
++ $1).strip rescue ""
++ cpuinfo[$1][:physical_id] = phys_id if not phys_id.empty?
++ if real_cpus[i].nil?
++ i = 0
++ end
++ if not real_cpus[i].nil?
++ cpuinfo[$1][:family] = real_cpus[i][:family] rescue ""
++ cpuinfo[$1][:cores] = real_cpus[i][:cores] rescue ""
++ cpuinfo[$1][:mhz] = real_cpus[i][:mhz] rescue ""
++ end
++ when /CPU implementer\s+:\s(.+)/
++ cpuinfo[current_cpu][:vendor_id] = cpu_implementers[$1]
++ cpuinfo[current_cpu][:vendor_id] ||= real_cpus[cpuinfo[current_cpu][:physical_id].to_i][:vendor_id] rescue nil
++ cpuinfo[current_cpu][:vendor_id] ||= real_cpus[0][:vendor_id] rescue nil
++ cpuinfo[current_cpu][:vendor_id] ||= $1
++ when /CPU part\s+:\s(.+)/
++ cpuinfo[current_cpu][:model] = $1
++ cpuinfo[current_cpu][:model_name] = core_models[$1]
++ cpuinfo[current_cpu][:model_name] ||= ""
++ when /Features\s+:\s(.+)/
++ cpuinfo[current_cpu][:flags] = $1.split(' ')
++ end
++ end
++ cpuinfo[:total] = cpu_number
++ cpuinfo[:real] = real_cpus.keys.length
++ cpuinfo
++ end
++
+ def _get_blkdev_info
+ info = {}
+ if File.directory?('/sys/block/')
diff --git a/debian/patches/series b/debian/patches/series
index 3980c60..fa57b98 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1,2 +1,3 @@
0001-ohai-Support-reading-L1-info-from-ethtool.patch
0002-Temporary-SR-IOV-Fix-VNICs-broken-filter.patch
+0003-AArch64-Add-CPU-details-detection.patch
|
