Debugging GET_VERSION Values.

[venkyn2]

I can query SPDM over MCTP-I2C for one of the cards, and it is successful. However, when I query different cards, I get an error followed by an unspecified error. How do i debug it ? is there any session related management need to be done?

Successful Case -
I get debug o/p libspdm_send_spdm_request[0] msg SPDM_GET_VERSION(0x84), size (0x4):
TX (SPDM) (4 bytes):
10 84 00 00
RX (SPDM) (10 bytes):
10 04 00 00 00 02 00 10 00 12

Unsuccessful - 0x7F return by different vendor cards.
TX (SPDM) (4 bytes):
10 84 00 00
RX (SPDM) (4 bytes):
11 7f 05 00

How should i debug this? any thing that needs to be done before initiating the connection

https://www.dmtf.org/sites/default/files/standards/documents/DSP0274_1.1.1.pdf
0x05 Unspecified error occurred

Regards,
Venky

[steven-bellock]

How should i debug this?

I would start with a support ticket to the card vendor. An Unspecified error to GET_VERSION probably means the card fundamentally cannot act as an SPDM Responder in its current state. Maybe the card has not been configured correctly.

[venkyn2]

Started the conversation so, marking it as closed. Thanks!!