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Todo #16741

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Feedback on Hardware — Hardware Tuning and Troubleshooting

Added by Stilez y 6 days ago. Updated 5 days ago.

Status:
Feedback
Priority:
Normal
Assignee:
-
Category:
General
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:

Description

Page: https://docs.netgate.com/pfsense/en/latest/hardware/tune.html

Feedback:

"By default, the Chelsio driver implements rate limiting capabilities which can be undesirable for routing performance. To disable this rate limiting capability, add the following as a Loader Tunable..."

Poor/misleading wording / outdated info, especially for modern T5/T6 cards?

1) Setting to 1 would disable * everything * except mopst basic functions. Unmodified sysctl value is 97 (64+32+1) so 1 would disable other working capabilities, according to online search this could cause tools such as RSS to also be disabled. Online sources suggest that the "rate limiting" relates to the card trying to manage fairness in highly congested ISP-grade environments. In a home network or 10G LAN these issues are said to be unlikely and not worth disabling for.

2) Also wording is poor, it suggests setting to 1 without appreciating that zeroing all the other bits will disable other functionality unintentionally. Suggested reword along these lines: "This is a binary value for card NIC capabilities. Setting bit (X) (decimal value) to zero will disable rate limiting capabilities in case of issues, especially with old Chelsio cards."

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