xdma(4) interface. This allows us to switch between Altera mSGDMA or SoftDMA engines used by atse(4) device. This also makes atse(4) driver become 25% smaller. Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D9618
Sponsored by: DARPA, AFRL
Sponsored by: Netflix