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[FAQ] PROCESSOR-SDK-TDAX: How to reduce the number of completion rings in VHWA drivers

Brijesh Jadav
Guru**** 424375 points
Part Number: PROCESSOR-SDK-TDAX
Other Parts Discussed in Thread: TDA4VM

VHWA has totally 6 drivers in the PDK and each driver requires many DMA channels to do transfers. In addition to one main ring, each channel requires two additional rings, one for output completion and other for tear down completion. This increases the total ring requirement for the VHWA driver.

This article explains how to reduce ring usage in VHWA driver.