PMCS_SGL_NCHUNKS
((PMCS_SGL_NCHUNKS - 1) * (PMCS_MAX_CHUNKS - 1)) + PMCS_SGL_NCHUNKS;
if (tsc == (PMCS_SGL_NCHUNKS - 1) &&
prior[PMCS_SGL_NCHUNKS-1].sglal =
prior[PMCS_SGL_NCHUNKS-1].sglah =
prior[PMCS_SGL_NCHUNKS-1].sglen = 0;
prior[PMCS_SGL_NCHUNKS-1].flags =
#define PMCS_SGL_CHUNKSZ (PMCS_SGL_NCHUNKS * (sizeof (pmcs_dmasgl_t)))