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cxgbe/t4_tom: Add a "TCB history" feature that samples hardware state

Description

cxgbe/t4_tom: Add a "TCB history" feature that samples hardware state
for a tid and maintains a running history of some interesting events.

Service TCP_INFO queries from the history when the tid is being tracked
there.

Details

Provenance
npAuthored on Apr 22 2019, 5:48 PM
Parents
rG687c09042ffb: ar: use array notation to access s_so
Branches
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