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[v6,0/2] pciutils: Add basic decode support for CXL DVSEC

Message ID 20200420221444.2641935-1-sean.v.kelley@linux.intel.com (mailing list archive)
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Series pciutils: Add basic decode support for CXL DVSEC | expand

Message

Sean V Kelley April 20, 2020, 10:14 p.m. UTC 
Changes since v5 [1]:

- There can be multiple vendor specific DVSEC IDs associated with CXL.
(Bjorn Helgaas)

[1] https://lore.kernel.org/linux-pci/20200415004751.2103963-1-sean.v.kelley@linux.intel.com/

This patch series adds support for basic lspci decode of Compute eXpress Link[2],
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 DVSEC Vendor ID and DVSEC ID so as
to identify a CXL capable device.

[2] 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          |  79 +++++++++-
 tests/cap-dvsec     | 340 ++++++++++++++++++++++++++++++++++++++++++++
 tests/cap-dvsec-cxl | 340 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 782 insertions(+), 1 deletion(-)
 create mode 100644 tests/cap-dvsec
 create mode 100644 tests/cap-dvsec-cxl

--
2.26.0

Comments

Sean V Kelley May 4, 2020, 4:20 p.m. UTC | #1 
On 20 Apr 2020, at 15:14, Sean V Kelley wrote:

> Changes since v5 [1]:
>
> - There can be multiple vendor specific DVSEC IDs associated with CXL.
> (Bjorn Helgaas)
>
> [1] 
> https://lore.kernel.org/linux-pci/20200415004751.2103963-1-sean.v.kelley@linux.intel.com/
>
> This patch series adds support for basic lspci decode of Compute 
> eXpress Link[2],
> 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 DVSEC Vendor ID and 
> DVSEC ID so as
> to identify a CXL capable device.
>
> [2] https://www.computeexpresslink.org/

Just a light ping on these patches.

Thanks!

Sean

>
> Sean V Kelley (2):
>   pciutils: Decode available DVSEC details
>   pciutils: Decode Compute eXpress Link DVSEC
>
>  lib/header.h        |  24 ++++
>  ls-ecaps.c          |  79 +++++++++-
>  tests/cap-dvsec     | 340 
> ++++++++++++++++++++++++++++++++++++++++++++
>  tests/cap-dvsec-cxl | 340 
> ++++++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 782 insertions(+), 1 deletion(-)
>  create mode 100644 tests/cap-dvsec
>  create mode 100644 tests/cap-dvsec-cxl
>
> --
> 2.26.0