Lines Matching refs:head
1872 u16 head, tail, tx_mask, spage, epage;
1881 head = readw(ofsAddr + TXrptr);
1882 c = (head > tail) ? (head - tail - 1) : (head - tail + tx_mask);
1891 if (head > tail)
1892 len = head - tail - 1;
1932 u16 pageno, pageofs, bufhead, head;
1936 head = readw(ofsAddr + RXrptr);
1941 count = (tail >= head) ? (tail - head) : (tail - head + rx_mask + 1);
1951 ofs = baseAddr + DynPage_addr + bufhead + head;
1952 len = (tail >= head) ? (tail - head) :
1953 (rx_mask + 1 - head);
1957 head = (head + len) & rx_mask;
1961 pageno = spage + (head >> 13);
1962 pageofs = head & Page_mask;
1975 head = (head + total) & rx_mask;
1977 writew(head, ofsAddr + RXrptr);