[Mellanox] bug fix to prevent reading unsupported slave address of SFP eeprom #84
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
A bug fix to Mellanox drivers:
Prevent reading unsupported slave address from SFP EEPROM
by testing Diagnostic Monitoring Type byte in EEPROM.
If some SFP transceiver doesn't support Digital Optical Monitoring (DOM),
thus reading SFP EEPROM slave address 0x51 could return an error.
Add code to detect the availability of DOM support,
it is verified by reading from zero page Diagnostic Monitoring Type byte
describing how diagnostic monitoring is implemented by the transceiver.
Signed-off-by: Kebo Liu kebol@mellanox.com