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Kevin Bowling
429cb53701
The initial statistics update runs before the PF VSI has obtained its firmware-assigned statistics counter index. Discard that provisional VSI baseline so the first update after initialization records the correct hardware counter. Without this reset, subtracting a larger provisional value from a newly selected counter can be mistaken for a 32-bit wrap and report nearly UINT32_MAX receive drops immediately after boot. Reported by: Daniel Braniss <[email protected]> Tested by: Daniel Braniss <[email protected]> Obtained from: Intel ixl 1.14.2 MFC after: 2 weeks Sponsored by: BBOX.io Differential Revision: https://reviews.freebsd.org/D59336