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* [edk2-devel] [PATCH edk2-platforms 00/10] MTCP-over-KCS support
@ 2023-10-16 13:18 Konstantin Aladyshev
  2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 01/10] ManageabilityPkg: Add definition for the MCTP KCS TRAILER structure Konstantin Aladyshev
                   ` (10 more replies)
  0 siblings, 11 replies; 12+ messages in thread
From: Konstantin Aladyshev @ 2023-10-16 13:18 UTC (permalink / raw)
  To: devel
  Cc: abner.chang, isaac.w.oram, AbdulLateef.Attar, nicklew,
	Konstantin Aladyshev

The Manageability KCS transport library needs to support requests both
from MCTP and IPMI transports. Currently the code only handles IPMI
case correctly.
In the MCTP case the communication should be based on the MCTP-over-KCS
specification (DSP0254). This specification defines a special KCS
binding header and trailer structures that need to be present in every
MCTP message.
The header structure contains a length field, therefore response packet
size is not needed to be known beforehand.
The trailer structure contains a PEC checksum that can be used to check
itegrity of the response message.
Modify Manageability KCS transport library code to check which message
is processed (IPMI or MCTP) and handle each case correctly based on its
own specification.
This patch is a result of a joint effort from the Konstantin Aladyshev
<aladyshev22@gmail.com> and Abner Chang <abner.chang@amd.com>.

Tested:
PLDM communication between the HOST and BMC was tested with both
components implemented via open-source software:
- The HOST (UEFI firmware) part was based one the edk2 [1] and
edk2-platforms [2] code,
- The BMC part was based on the openbmc [3] distribution.

The testing process and all the necessary utilities are described in
the [4] repository.

The provided changes keep IPMI over KCS stack working as reported by
Abner Chang.

[1]: https://github.com/tianocore/edk2
[2]: https://github.com/tianocore/edk2-platforms
[3]: https://github.com/openbmc/openbmc
[4]: https://github.com/Kostr/PLDM

Konstantin Aladyshev (10):
  ManageabilityPkg: Add definition for the MCTP KCS TRAILER structure
  ManageabilityPkg: Check MCTP EIDs for reserved values
  ManageabilityPkg: Support both MCTP and IPMI in KCS tranport library
  ManageabilityPkg: Check header fields in the MCTP response
  ManageabilityPkg: Correct typo in MCTP destination EID field
  ManageabilityPkg: Update the algorithm of using MCTP endpoint ID PCD
  ManageabilityPkg: Correct value for the MCTP TAG_OWNER response bit
  ManageabilityPkg: Don't check MCTP header fields if transfer has
    failed
  ManageabilityPkg: Use correct constants for PLDM header checks
  ManageabilityPkg: Return error on multiple-packet MCTP responses

 .../Library/ManageabilityTransportMctpLib.h   |   9 +-
 .../Include/Protocol/MctpProtocol.h           |  12 +-
 .../Common/KcsCommon.c                        | 284 +++++++++++++++---
 .../Dxe/ManageabilityTransportMctp.c          |   4 +-
 .../MctpProtocol/Common/MctpProtocolCommon.c  | 129 +++++++-
 .../Universal/MctpProtocol/Dxe/MctpProtocol.c |  51 +++-
 .../PldmProtocol/Common/PldmProtocolCommon.c  |  10 +-
 7 files changed, 430 insertions(+), 69 deletions(-)

-- 
2.34.1



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^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2023-10-18  5:53 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-10-16 13:18 [edk2-devel] [PATCH edk2-platforms 00/10] MTCP-over-KCS support Konstantin Aladyshev
2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 01/10] ManageabilityPkg: Add definition for the MCTP KCS TRAILER structure Konstantin Aladyshev
2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 02/10] ManageabilityPkg: Check MCTP EIDs for reserved values Konstantin Aladyshev
2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 03/10] ManageabilityPkg: Support both MCTP and IPMI in KCS tranport library Konstantin Aladyshev
2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 04/10] ManageabilityPkg: Check header fields in the MCTP response Konstantin Aladyshev
2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 05/10] ManageabilityPkg: Correct typo in MCTP destination EID field Konstantin Aladyshev
2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 06/10] ManageabilityPkg: Update the algorithm of using MCTP endpoint ID PCD Konstantin Aladyshev
2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 07/10] ManageabilityPkg: Correct value for the MCTP TAG_OWNER response bit Konstantin Aladyshev
2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 08/10] ManageabilityPkg: Don't check MCTP header fields if transfer has failed Konstantin Aladyshev
2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 09/10] ManageabilityPkg: Use correct constants for PLDM header checks Konstantin Aladyshev
2023-10-16 13:18 ` [edk2-devel] [PATCH edk2-platforms 10/10] ManageabilityPkg: Return error on multiple-packet MCTP responses Konstantin Aladyshev
2023-10-18  5:52 ` [edk2-devel] [PATCH edk2-platforms 00/10] MTCP-over-KCS support Chang, Abner via groups.io

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