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Add a PCI/PCIe device VPD Parser

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Add support for deserializing the binary PCI/PCIe VPD format and storing
results in memory.

The VPD format is specified in "I.3. VPD Definitions" in PCI specs
(2.2+) and "6.28.1 VPD Format" PCIe 4.0. As section 6.28 in PCIe 4.0
notes, the PCI Local Bus and PCIe VPD formats are binary compatible
and PCIe 4.0 merely started incorporating what was already present in
PCI specs.

Linux kernel exposes a binary blob in the VPD format via sysfs since
v2.6.26 (commit 94e6108803469a37ee1e3c92dafdd1d59298602f) which requires
a parser to interpret.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dmitrii Shcherbakov <dmitrii.shcherbakov@canonical.com>
This commit is contained in:
Dmitrii Shcherbakov
2021-10-20 11:30:31 +03:00
committed by Daniel P. Berrangé
parent deb4971e96
commit 59c1bc3a0e
11 changed files with 1795 additions and 2 deletions
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4
build-aux/syntax-check.mk
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@@ -775,9 +775,9 @@ sc_prohibit_windows_special_chars_in_filename:
{ echo '$(ME): Windows special chars in filename not allowed' 1>&2; echo exit 1; } || :
sc_prohibit_mixed_case_abbreviations:
@prohibit='Pci|Usb|Scsi' \
@prohibit='Pci|Usb|Scsi|Vpd' \
in_vc_files='\.[ch]$$' \
halt='Use PCI, USB, SCSI, not Pci, Usb, Scsi' \
halt='Use PCI, USB, SCSI, VPD, not Pci, Usb, Scsi, Vpd' \
$(_sc_search_regexp)
# Require #include <locale.h> in all files that call setlocale()