WR_FLITS
*(unsigned int *)data = WR_FLITS;
unsigned int avail = WR_FLITS - flits;
wrp->wr_lo = htonl(V_WR_LEN(uimin(WR_FLITS,
wp->wr_lo = htonl(V_WR_LEN(WR_FLITS) | V_WR_GEN(ogen)) | wr_lo;
#define WR_LEN (WR_FLITS * 8)