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SysFSTools: add verbose flag to pci_device_info

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to also get the subsystem_vendor and device, as well as the
iommu group and mediated device support

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
This commit is contained in:
Dominik Csapak 2021-06-21 15:55:15 +02:00 committed by Thomas Lamprecht
parent a03e5b39e1
commit aa59b1121c
1 changed files with 25 additions and 4 deletions
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29
src/PVE/SysFSTools.pm
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@ -197,20 +197,22 @@ sub file_write {
} }
sub pci_device_info { sub pci_device_info {
my ($name) = @_; my ($name, $verbose) = @_;
my $res; my $res;
return undef if $name !~ m/^${pciregex}$/; return undef if $name !~ m/^${pciregex}$/;
my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4); my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4);
my $irq = file_read_firstline("$pcisysfs/devices/$name/irq"); my $devdir = "$pcisysfs/devices/$name";
my $irq = file_read_firstline("$devdir/irq");
return undef if !defined($irq) || $irq !~ m/^\d+$/; return undef if !defined($irq) || $irq !~ m/^\d+$/;
my $vendor = file_read_firstline("$pcisysfs/devices/$name/vendor"); my $vendor = file_read_firstline("$devdir/vendor");
return undef if !defined($vendor) || $vendor !~ s/^0x//; return undef if !defined($vendor) || $vendor !~ s/^0x//;
my $product = file_read_firstline("$pcisysfs/devices/$name/device"); my $product = file_read_firstline("$devdir/device");
return undef if !defined($product) || $product !~ s/^0x//; return undef if !defined($product) || $product !~ s/^0x//;
$res = { $res = {
@ -225,6 +227,25 @@ sub pci_device_info {
has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0, has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0,
}; };
if ($verbose) {
my $sub_vendor = file_read_firstline("$devdir/subsystem_vendor");
$sub_vendor =~ s/^0x// if defined($sub_vendor);
my $sub_device = file_read_firstline("$devdir/subsystem_device");
$sub_device =~ s/^0x// if defined($sub_device);
$res->{subsystem_vendor} = $sub_vendor if defined($sub_vendor);
$res->{subsystem_device} = $sub_device if defined($sub_device);
if (-e "$devdir/iommu_group") {
my ($iommugroup) = (readlink("$devdir/iommu_group") =~ m/\/(\d+)$/);
$res->{iommugroup} = int($iommugroup);
}
if (-d "$devdir/mdev_supported_types") {
$res->{mdev} = 1;
}
}
return $res; return $res;
} }