IPOIB_NUM_WC
struct ib_wc ibwc[IPOIB_NUM_WC];
n = ib_poll_cq(priv->recv_cq, IPOIB_NUM_WC, priv->ibwc);
if (n != IPOIB_NUM_WC)
n = ib_poll_cq(priv->recv_cq, IPOIB_NUM_WC, priv->ibwc);
} while (n == IPOIB_NUM_WC);