rpms/pciutils
7
0
Fork 0
Code Issues Pull Requests Releases Activity

improvements to PCIe link speed downgrade reporting (RHEL-176385)

Browse Source 
Resolves: RHEL-176385
This commit is contained in:
Michal Hlavinka 2026-06-01 17:38:57 +02:00 committed by mhlavink
parent e41b09001b
commit bb401e048b
3 changed files with 54 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
pciutils-3.7-speed-reporting.patch Normal file
View File

@ -0,0 +1,41 @@
diff --git a/ls-caps.c b/ls-caps.c
index 91acb599..79b61cd8 100644
--- a/ls-caps.c
+++ b/ls-caps.c
@@ -771,13 +771,16 @@ static char *link_speed(int speed)
}
}
-static char *link_compare(int sta, int cap)
+static char *link_compare(int type, int sta, int cap)
{
- if (sta < cap)
- return "downgraded";
if (sta > cap)
- return "strange";
- return "ok";
+ return " (overdriven)";
+ if (sta == cap)
+ return "";
+ if ((type == PCI_EXP_TYPE_ROOT_PORT) || (type == PCI_EXP_TYPE_DOWNSTREAM) ||
+ (type == PCI_EXP_TYPE_PCIE_BRIDGE))
+ return "";
+ return " (downgraded)";
}
static char *aspm_support(int code)
@@ -850,11 +853,11 @@ static void cap_express_link(struct device *d, int where, int type)
w = get_conf_word(d, where + PCI_EXP_LNKSTA);
sta_speed = w & PCI_EXP_LNKSTA_SPEED;
sta_width = (w & PCI_EXP_LNKSTA_WIDTH) >> 4;
- printf("\t\tLnkSta:\tSpeed %s (%s), Width x%d (%s)\n",
+ printf("\t\tLnkSta:\tSpeed %s%s, Width x%d%s\n",
link_speed(sta_speed),
- link_compare(sta_speed, cap_speed),
+ link_compare(type, sta_speed, cap_speed),
sta_width,
- link_compare(sta_width, cap_width));
+ link_compare(type, sta_width, cap_width));
printf("\t\t\tTrErr%c Train%c SlotClk%c DLActive%c BWMgmt%c ABWMgmt%c\n",
FLAG(w, PCI_EXP_LNKSTA_TR_ERR),
FLAG(w, PCI_EXP_LNKSTA_TRAIN),

4
pciutils-3.7.0-cxllinkstatus.patch
View File

@ -104,9 +104,9 @@ diff -up pciutils-3.7.0/ls-caps.c.cxxsup pciutils-3.7.0/ls-caps.c
+ sta_width = (w & PCI_EXP_LNKSTA_WIDTH) >> 4;
+ printf("\t\tLnkSta:\tSpeed %s%s, Width x%d%s\n",
+ link_speed(sta_speed),
+ link_compare(sta_speed, cap_speed),
+ link_compare(PCI_EXP_TYPE_ROOT_INT_EP, sta_speed, cap_speed),
+ sta_width,
+ link_compare(sta_width, cap_width));
+ link_compare(PCI_EXP_TYPE_ROOT_INT_EP, sta_width, cap_width));
+ printf("\t\t\tTrErr%c Train%c SlotClk%c DLActive%c BWMgmt%c ABWMgmt%c\n",
+ FLAG(w, PCI_EXP_LNKSTA_TR_ERR),
+ FLAG(w, PCI_EXP_LNKSTA_TRAIN),

14
pciutils.spec
View File

@ -1,6 +1,6 @@
Name: pciutils
Version: 3.7.0
Release: 7%{?dist}
Release: 8%{?dist}
Summary: PCI bus related utilities
License: GPLv2+
URL: https://mj.ucw.cz/sw/pciutils/
@ -21,8 +21,12 @@ Patch3: pciutils-3.7.0-decodercec.patch
Patch4: pciutils-3.7.0-pcie6datarate1of2.patch
Patch5: pciutils-3.7.0-pcie6datarate2of2.patch
# for < 3.8.0, RHEL-176385
# https://github.com/pciutils/pciutils/commit/9f7681202fcfaefd02e202eb64c01eb9e962729d
Patch6: pciutils-3.7-speed-reporting.patch
#cxl1.1 device link status, from upstream, for < 3.13, #RHEL-29162
Patch6: pciutils-3.7.0-cxllinkstatus.patch
Patch7: pciutils-3.7.0-cxllinkstatus.patch
Requires: hwdata
Requires: %{name}-libs = %{version}-%{release}
@ -63,7 +67,8 @@ devices connected to the PCI bus.
%patch -P 3 -p 1
%patch -P 4 -p 1
%patch -P 5 -p 1
%patch -P 6 -p 1 -b .cxxsup
%patch -P 6 -p 1 -b .speed-reporting
%patch -P 7 -p 1 -b .cxxsup
%build
%make_build SHARED="no" ZLIB="no" LIBKMOD=yes STRIP="" OPT="$RPM_OPT_FLAGS" LDFLAGS="$RPM_LD_FLAGS" PREFIX="/usr" LIBDIR="%{_libdir}" IDSDIR="/usr/share/hwdata" PCI_IDS="pci.ids"
@ -115,6 +120,9 @@ install -p -m 644 lib/libpci.pc $RPM_BUILD_ROOT%{_libdir}/pkgconfig
%{_mandir}/man7/*
%changelog
* Mon Jun 01 2026 Michal Hlavinka <mhlavink@redhat.com> - 3.7.0-8
- improvements to PCIe link speed downgrade reporting (RHEL-176385)
* Sat Nov 02 2024 Michal Hlavinka <mhlavink@redhat.com> - 3.7.0-7
- add support for cxl1.1 device link status information (#RHEL-29162)