8179a04bfe
Medford2 uses a configurable VI window size, and requires updates to register accesses to use a runtime VI window size rather than the *_STEP register constants used for earlier controllers. Update the common code to query the VI window size via MCDI, and add new EFX_BAR_VI_* accessor macros for per-VI registers. The existing EFX_BAR_TBL_* macros can be used for non-VI register tables (and for code that can never be called for a Medford2 controller e.g. Siena-only code). Submitted by: Andy Moreton <amoreton at solarflare.com> Sponsored by: Solarflare Communications, Inc. Differential Revision: https://reviews.freebsd.org/D18158
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