ddi_dma_burstsizes - find out the allowed burst sizes for a DMA mapping
#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
int ddi_dma_burstsizes(ddi_dma_handle_t handle);
illumos DDI specific (illumos DDI).
ddi_dma_burstsizes() returns the allowed burst sizes for a DMA
mapping. This value is derived from the dma_attr_burstsizes member of
the ddi_dma_attr(9S) structure, but it shows the allowable burstsizes
after imposing on it the limitations of other device layers in addition
to device's own limitations.
ddi_dma_burstsizes() returns a binary encoded value of the allowable
DMA burst sizes. See ddi_dma_attr(9S) for a discussion of
DMA burst sizes.
This function can be called from user or interrupt context.