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[v4,0/2] pciutils: Add basic decode support for CXL DVSEC

Message ID 20200413153526.805776-1-sean.v.kelley@linux.intel.com
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Series pciutils: Add basic decode support for CXL DVSEC | expand

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Sean V Kelley April 13, 2020, 3:35 p.m. UTC 
Changes since v3 [1]:

- Non-functional changes, subject and typo corrections

Changes since v2 [2]:

- Separate DVSEC capabilities from CXL and provide a means to identify.
(Bjorn Helgaas)

Changes since v1 [3]:

- Use consistent syntax to match other lspci capability output.
(Bjorn Helgaas)

[1] https://lore.kernel.org/linux-pci/20200410232440.668057-1-sean.v.kelley@linux.intel.com/
[2] https://lore.kernel.org/linux-pci/20200409213019.335678-1-sean.v.kelley@linux.intel.com/
[3] https://lore.kernel.org/linux-pci/20200409183204.328057-1-sean.v.kelley@linux.intel.com/

This patch series adds support for basic lspci decode of Compute eXpress Link[4],
a new CPU interconnect building upon PCIe.  As a foundation for the CXL
support it adds separate Designated Vendor-Specific Capability (DVSEC) defines
and a cap function so as to align with PCIe r5.0, sec 7.9.6.2 terms and
provide available details.  It makes use of the Vendor ID so as to identify
a Flex Bus capable port for purposes of CXL support.

[4] https://www.computeexpresslink.org/

Sean V Kelley (2):
  pciutils: Decode available DVSEC details
  pciutils: Decode Compute eXpress Link DVSEC

 lib/header.h        |  24 ++++
 ls-ecaps.c          |  73 +++++++++-
 tests/cap-dvsec     | 340 ++++++++++++++++++++++++++++++++++++++++++++
 tests/cap-dvsec-cxl | 340 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 776 insertions(+), 1 deletion(-)
 create mode 100644 tests/cap-dvsec
 create mode 100644 tests/cap-dvsec-cxl

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2.26.0