RQUEST_QUEUE_LEN
icbp->icb_rqstqlen = RQUEST_QUEUE_LEN(isp);
nw = min(wl, ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)) / 4);
MEMORYBARRIER(isp, SYNC_REQUEST, 0, ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)), -1);
dlen = min(risc_size, ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)) / 4);
nxt = ISP_NXT_QENTRY(nxt, RQUEST_QUEUE_LEN(isp));
nxt = ISP_NXT_QENTRY(isp->isp_reqidx, RQUEST_QUEUE_LEN(isp));
len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
isp->isp_reqidx = ISP_NXT_QENTRY(isp->isp_reqidx, RQUEST_QUEUE_LEN(isp)); \