MAXREQSPERMCR
int reqprealloc = wlp->dwl_hiwater + (MAXWORK * MAXREQSPERMCR);
"mcr1_maxreqs", MCR1MAXREQS), MAXREQSPERMCR);
"mcr2_maxreqs", MCR2MAXREQS), MAXREQSPERMCR);
for (nreqs = 0; nreqs < MAXREQSPERMCR; nreqs++) {
dca_request_t *dw_reqs[MAXREQSPERMCR];
#define MCR_SIZE (4 + MAXREQSPERMCR * ((2 * DESC_SIZE) + 8))