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eabdullin 2024-05-31 17:01:45 +00:00
parent 823d2c3f95
commit 89796d4677
7 changed files with 342 additions and 2 deletions
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.powerpc-utils.metadata
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4596fced545f3c751ff2665663baaed0db7ab7ce SOURCES/powerpc-utils-1.3.10.tar.gz

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SOURCES/nx-gzip.udev Normal file
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KERNEL=="nx-gzip", MODE="0666"

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SOURCES/powerpc-utils-1.3.10-lparstat-Fix-negative-values-seen-while-running-lpar.patch Normal file
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commit 73ba26c1240a25e7699449e82cfc09dad10fed80
Author: Sathvika Vasireddy <sv@linux.ibm.com>
Date: Fri Dec 9 15:26:46 2022 +0530
lparstat: Fix negative values seen while running lparstat with -E option
Negative values are seen while running lparstat with -E option.
This is because delta_purr value is less than delta_idle_purr.
Given that these values are read from different sources, a
small variation in the values is possible. So, in such cases,
round down delta_idle_purr to delta_purr.
Without this patch:
=====
System Configuration
type=Dedicated mode=Capped smt=8 lcpu=240 mem=67033290112 kB cpus=0
ent=240.00
---Actual--- -Normalized-
%busy %idle Frequency %busy %idle
------ ------ ------------- ------ ------
-0.03 100.02 3.93GHz[111%] 0.01 110.97
0.00 100.00 3.93GHz[111%] 0.01 110.99
-0.04 100.03 3.93GHz[111%] 0.01 110.98
0.06 99.95 3.93GHz[111%] 0.01 110.99
0.02 99.98 3.93GHz[111%] 0.01 110.99
=====
With this patch:
=====
System Configuration
type=Dedicated mode=Capped smt=8 lcpu=240 mem=67033290112 kB cpus=0
ent=240.00
---Actual--- -Normalized-
%busy %idle Frequency %busy %idle
------ ------ ------------- ------ ------
0.03 99.96 3.93GHz[111%] 0.01 110.98
0.00 100.00 3.93GHz[111%] 0.01 110.99
0.03 99.97 3.93GHz[111%] 0.01 110.99
0.00 100.00 3.93GHz[111%] 0.01 110.99
0.09 99.90 3.93GHz[111%] 0.01 110.99
=====
Reported-by: Shirisha Ganta <shirisha.ganta1@ibm.com>
Signed-off-by: Sathvika Vasireddy <sv@linux.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
diff --git a/src/lparstat.c b/src/lparstat.c
index 31a4ee8..eebba1f 100644
--- a/src/lparstat.c
+++ b/src/lparstat.c
@@ -492,6 +492,15 @@ void get_cpu_util_purr(struct sysentry *unused_se, char *buf)
delta_purr = get_delta_value("purr");
delta_idle_purr = get_delta_value("idle_purr");
+ /*
+ * Given that these values are read from different
+ * sources (purr from lparcfg and idle_purr from sysfs),
+ * a small variation in the values is possible.
+ * In such cases, round down delta_idle_purr to delta_purr.
+ */
+ if (delta_idle_purr > delta_purr)
+ delta_idle_purr = delta_purr;
+
physc = (delta_purr - delta_idle_purr) / delta_tb;
physc *= 100.00;
@@ -507,6 +516,15 @@ void get_cpu_idle_purr(struct sysentry *unused_se, char *buf)
delta_purr = get_delta_value("purr");
delta_idle_purr = get_delta_value("idle_purr");
+ /*
+ * Given that these values are read from different
+ * sources (purr from lparcfg and idle_purr from sysfs),
+ * a small variation in the values is possible.
+ * In such cases, round down delta_idle_purr to delta_purr.
+ */
+ if (delta_idle_purr > delta_purr)
+ delta_idle_purr = delta_purr;
+
physc = (delta_purr - delta_idle_purr) / delta_tb;
idle = (delta_purr / delta_tb) - physc;
idle *= 100.00;

46
SOURCES/powerpc-utils-1.3.10-lparstat-Fix-offline-threads-uninitialized-entries.patch Normal file
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commit dee15756bcb287ccf39a904be07c90107b13844b
Author: Laurent Dufour <ldufour@linux.ibm.com>
Date: Wed May 3 10:50:15 2023 +0200
lparstat: Fix offline threads uninitialized entries
When some threads are offline, lparstat -E is failing like that:
$ ppc64_cpu --info # CPU 20 is offline
Core 0: 0* 1* 2* 3* 4* 5* 6* 7*
Core 1: 8* 9* 10* 11* 12* 13* 14* 15*
Core 2: 16* 17* 18* 19* 20 21* 22* 23*
Core 3: 24* 25* 26* 27* 28* 29* 30* 31*
Core 4: 32* 33* 34* 35* 36* 37* 38* 39*
Core 5: 40* 41* 42* 43* 44* 45* 46* 47*
$ lparstat -E
Failed to read /sys/devices/system/cpu/cpu0/spurr
The message is complaining about CPU0 but the real issue is that in
parse_sysfs_values() the test cpu_sysfs_fds[i].spurr >= 0 is valid even if
the entry has not been initialized (cpu_sysfs_fds is alloc cleared). So
if the number of threads online seen in assign_cpu_sysfs_fds is lower than
threads_in_system, the loop in parse_sysfs_values() will read uninitialized
entry, where .cpu=0.
To prevent that, unset entries in the cpu_sysfs_fds should have the spurr
fd set to -1.
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
diff --git a/src/lparstat.c b/src/lparstat.c
index a9e7bce..d2fdb3f 100644
--- a/src/lparstat.c
+++ b/src/lparstat.c
@@ -163,6 +163,10 @@ static int assign_cpu_sysfs_fds(int threads_in_system)
cpu_idx++;
}
+ /* Mark extra slots for offline threads unset, see parse_sysfs_values */
+ for (; cpu_idx < threads_in_system; cpu_idx++)
+ cpu_sysfs_fds[cpu_idx].spurr = -1;
+
return 0;
error:
fprintf(stderr, "Failed to open %s: %s\n",

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SOURCES/powerpc-utils-1.3.10-lparstat-report-mixed-SMT-state.patch Normal file
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commit b2672fa3d462217ccd057a2cd307af2448e78757
Author: Laurent Dufour <ldufour@linux.ibm.com>
Date: Wed May 3 10:50:14 2023 +0200
lparstat: report mixed SMT state
when SMT state is mixed like this one (CPU 4 is offline):
$ ppc64_cpu --info
Core 0: 0* 1* 2* 3* 4 5* 6* 7*
Core 1: 8* 9* 10* 11* 12* 13* 14* 15*
Core 2: 16* 17* 18* 19* 20* 21* 22* 23*
Core 3: 24* 25* 26* 27* 28* 29* 30* 31*
Core 4: 32* 33* 34* 35* 36* 37* 38* 39*
Core 5: 40* 41* 42* 43* 44* 45* 46* 47*
$ ppc64_cpu --smt
SMT=7: 0
SMT=8: 1-5
ppc64_cpu --smt is handling that nicely but lparstat failed reporting the
SMT state:
$ /usr/sbin/lparstat
Failed to get smt state
System Configuration
type=Dedicated mode=Capped smt=Capped lcpu=6 mem=65969728 kB cpus=0 ent=6.00
%user %sys %wait %idle physc %entc lbusy app vcsw phint
----- ----- ----- ----- ----- ----- ----- ----- ----- -----
0.02 0.01 0.00 99.97 3.41 56.83 0.02 0.00 4061778 156
Makes lparstat reporting "smt=mixed" in that case.
__do_smt is now returning 0 when the SMT state is mixed instead of -1 which
is also reported when an error is detected.
This doesn't change the call made by ppc64_cpu which is using
print_smt_state=true and so is expecting a returned value equal to 0 or -1.
With that patch applied, lparstat print that in the above case:
$lparstat
System Configuration
type=Dedicated mode=Capped smt=Mixed lcpu=6 mem=65969728 kB cpus=0 ent=6.00
%user %sys %wait %idle physc %entc lbusy app vcsw phint
----- ----- ----- ----- ----- ----- ----- ----- ----- -----
0.01 0.01 0.00 99.97 3.43 57.17 0.02 0.00 4105654 156
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
diff --git a/src/common/cpu_info_helpers.c b/src/common/cpu_info_helpers.c
index 925f220..c05d96d 100644
--- a/src/common/cpu_info_helpers.c
+++ b/src/common/cpu_info_helpers.c
@@ -245,7 +245,7 @@ int __do_smt(bool numeric, int cpus_in_system, int threads_per_cpu,
if (smt_state == 0)
smt_state = thread + 1;
else if (smt_state > 0)
- smt_state = -1; /* mix of SMT modes */
+ smt_state = 0; /* mix of SMT modes */
}
}
@@ -257,7 +257,7 @@ int __do_smt(bool numeric, int cpus_in_system, int threads_per_cpu,
printf("SMT=1\n");
else
printf("SMT is off\n");
- } else if (smt_state == -1) {
+ } else if (smt_state == 0) {
for (thread = 0; thread < threads_per_cpu; thread++) {
if (CPU_COUNT_S(cpu_state_size,
cpu_states[thread])) {
diff --git a/src/lparstat.c b/src/lparstat.c
index eebba1f..a9e7bce 100644
--- a/src/lparstat.c
+++ b/src/lparstat.c
@@ -884,13 +884,15 @@ void get_smt_mode(struct sysentry *se, char *buf)
}
smt_state = parse_smt_state();
- if (smt_state < 0) {
+ if (smt_state == -1) {
fprintf(stderr, "Failed to get smt state\n");
return;
}
if (smt_state == 1)
sprintf(buf, "Off");
+ else if (smt_state == 0)
+ sprintf(buf, "Mixed");
else
sprintf(buf, "%d", smt_state);
}

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SOURCES/powerpc-utils-f4c2b0-fix_display_of_mode_for_dedicated_donating_partition.patch Normal file
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commit f4c2b0d142f623e7dd28a5d685e446d41be75601
Author: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Date: Thu Aug 25 12:19:27 2022 +0530
lparstat: Fix display of mode for dedicated-donating partition
From the lparstat man page:
mode
Indicates whether the partition processor capacity is capped or uncapped
allowing it to consume idle cycles from the shared pool. Dedicated LPAR
is capped or donating.
However, on a dedicated partition, lparstat always displays the mode as
'Capped' today. Fix this by using 'DedDonMode' field from lparcfg for
determining the cycle donation status of a dedicated partition.
On a dedicated-donating partition:
$ grep -e shared -e DedDonMode -e capped /proc/powerpc/lparcfg
DedDonMode=1
capped=1
shared_processor_mode=0
Before this patch:
$ lparstat
System Configuration
type=Dedicated mode=Capped smt=8 lcpu=1 mem=3335424 kB cpus=0 ent=1.00
After this patch:
$ lparstat
System Configuration
type=Dedicated mode=Donating smt=8 lcpu=1 mem=3335424 kB cpus=0 ent=1.00
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
diff --git a/src/lparstat.c b/src/lparstat.c
index 0b30fc9..e998e8c 100644
--- a/src/lparstat.c
+++ b/src/lparstat.c
@@ -718,6 +718,16 @@ void get_capped_mode(struct sysentry *se, char *buf)
sprintf(buf, "%s", value);
}
+void get_dedicated_mode(struct sysentry *se, char *buf)
+{
+ const char *value = "Capped";
+
+ if (se->value[0] == '1')
+ value = "Donating";
+
+ sprintf(buf, "%s", value);
+}
+
void get_percent_entry(struct sysentry *se, char *buf)
{
float value;
@@ -1057,7 +1067,10 @@ void print_system_configuration(void)
get_sysdata("shared_processor_mode", &descr, value);
offset = sprintf(buf, "type=%s ", value);
sprintf(type, "%s", value);
- get_sysdata("capped", &descr, value);
+ if (!strcmp(value, "Dedicated"))
+ get_sysdata("DedDonMode", &descr, value);
+ else
+ get_sysdata("capped", &descr, value);
offset += sprintf(buf + offset, "mode=%s ", value);
get_sysdata("smt_state", &descr, value);
offset += sprintf(buf + offset, "smt=%s ", value);
diff --git a/src/lparstat.h b/src/lparstat.h
index 26ed4ba..b7c88e9 100644
--- a/src/lparstat.h
+++ b/src/lparstat.h
@@ -47,6 +47,7 @@ typedef struct cpu_sysfs_file_desc cpu_sysfs_fd;
extern void get_smt_state(struct sysentry *, char *);
extern void get_capped_mode(struct sysentry *, char *);
+extern void get_dedicated_mode(struct sysentry *, char *);
extern void get_memory_mode(struct sysentry *, char *);
extern void get_percent_entry(struct sysentry *, char *);
extern void get_phys_cpu_percentage(struct sysentry *, char *);
@@ -110,7 +111,8 @@ struct sysentry system_data[] = {
{.name = "DesVarCapWt",
.descr = "Desired Variable Capacity Weight"},
{.name = "DedDonMode",
- .descr = "Dedicated Donation Mode"},
+ .descr = "Dedicated Donation Mode",
+ .get = &get_dedicated_mode},
{.name = "partition_entitled_capacity",
.descr = "Partition Entitled Capacity"},
{.name = "system_active_processors",

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SPECS/powerpc-utils.spec
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Name: powerpc-utils
Version: 1.3.10
Release: 3%{?dist}
Release: 6%{?dist}
Summary: PERL-based scripts for maintaining and servicing PowerPC systems
Group: System Environment/Base
License: GPLv2
URL: https://github.com/ibm-power-utilities/powerpc-utils
Source0: https://github.com/ibm-power-utilities/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz
Source1: nx-gzip.udev
Patch0: powerpc-utils-1.3.10-manpages.patch
Patch1: powerpc-utils-1.3.10-distro.patch
# bz#2121470, Fix lsslot -c mem output when using 4GB LMB size
Patch3: powerpc-utils-b1b9e7-LMB_size_4GB.patch
Patch4: powerpc-utils-e1f1de-lmb_address_in_hexadecimal.patch
Patch5: powerpc-utils-fix_setting_primary_slave_across_reboots.patch
Patch6: powerpc-utils-f4c2b0-fix_display_of_mode_for_dedicated_donating_partition.patch
# lparstat: Fix-negative-values-seen-while-running-lpar
Patch10: powerpc-utils-1.3.10-lparstat-Fix-negative-values-seen-while-running-lpar.patch
# report-mixed-SMT-state
Patch11: powerpc-utils-1.3.10-lparstat-report-mixed-SMT-state.patch
# Fix-offline-threads-uninitialized-entries
Patch12: powerpc-utils-1.3.10-lparstat-Fix-offline-threads-uninitialized-entries.patch
ExclusiveArch: ppc %{power64}
@ -77,6 +86,9 @@ install $RPM_BUILD_ROOT/usr/share/doc/packages/powerpc-utils/* -t $RPM_BUILD_ROO
rm -rf $RPM_BUILD_ROOT/usr/share/doc/packages/powerpc-utils
rm -f $RPM_BUILD_ROOT%{_pkgdocdir}/COPYING
# install udev rule for the nx-gzip accelerator
install -pDm 644 %{SOURCE1} %{buildroot}%{_udevrulesdir}/90-nx-gzip.rules
# remove init script and perl script. They are deprecated
rm -rf $RPM_BUILD_ROOT/etc/init.d/ibmvscsis.sh $RPM_BUILD_ROOT/usr/sbin/vscsisadmin
@ -157,6 +169,7 @@ systemctl enable hcn-init.service >/dev/null 2>&1 || :
%{_sbindir}/pseries_platform
%{_sbindir}/drmgr
%{_sbindir}/lparnumascore
%{_udevrulesdir}/90-nx-gzip.rules
%{_mandir}/man1/amsstat.1*
%{_mandir}/man5/lparcfg.5*
%{_mandir}/man8/activate_firmware.8*
@ -191,6 +204,17 @@ systemctl enable hcn-init.service >/dev/null 2>&1 || :
%{_mandir}/man8/lparnumascore.8*
%changelog
* Wed Jul 26 2023 Than Ngo <than@redhat.com> - 1.3.10-6
- Fix negative values seen while running lpar
- Fix lparstat error with mixed SMT state
Resolves: #2225135
* Sat Jun 17 2023 Than Ngo <than@redhat.com> - 1.3.10-5
- Resolves: #2207649, Add udev rule for the nx-gzip in to the core subpackage
* Tue Apr 25 2023 Than Ngo <than@redhat.com> - 1.3.10-4
- Resolves: #2166871, lparstat showing incorrect mode in a dedicated-donating LPAR
* Mon Nov 28 2022 Than Ngo <than@redhat.com> - 1.3.10-3
- Resolves: #2148878, HNV bond fails to come up with sriov interface as active slave