935 #define IRDMA_RING_GET_NEXT_TAIL(_ring, _idx) \  argument
937 		((_ring).tail + (_idx)) % (_ring).size \
952 #define IRDMA_RING_INIT(_ring, _size) \  argument
954 		(_ring).head = 0; \
955 		(_ring).tail = 0; \
956 		(_ring).size = (_size); \
958 #define IRDMA_RING_SIZE(_ring) ((_ring).size)  argument
959 #define IRDMA_RING_CURRENT_HEAD(_ring) ((_ring).head)  argument
960 #define IRDMA_RING_CURRENT_TAIL(_ring) ((_ring).tail)  argument
962 #define IRDMA_RING_MOVE_HEAD(_ring, _retcode) \  argument
965 		size = (_ring).size;  \
966 		if (!IRDMA_RING_FULL_ERR(_ring)) { \
967 			(_ring).head = ((_ring).head + 1) % size; \
973 #define IRDMA_RING_MOVE_HEAD_BY_COUNT(_ring, _count, _retcode) \  argument
976 		size = (_ring).size; \
977 		if ((IRDMA_RING_USED_QUANTA(_ring) + (_count)) < size) { \
978 			(_ring).head = ((_ring).head + (_count)) % size; \
984 #define IRDMA_SQ_RING_MOVE_HEAD(_ring, _retcode) \  argument
987 		size = (_ring).size;  \
988 		if (!IRDMA_SQ_RING_FULL_ERR(_ring)) { \
989 			(_ring).head = ((_ring).head + 1) % size; \
995 #define IRDMA_SQ_RING_MOVE_HEAD_BY_COUNT(_ring, _count, _retcode) \  argument
998 		size = (_ring).size; \
999 		if ((IRDMA_RING_USED_QUANTA(_ring) + (_count)) < (size - 256)) { \
1000 			(_ring).head = ((_ring).head + (_count)) % size; \
1006 #define IRDMA_RING_MOVE_HEAD_BY_COUNT_NOCHECK(_ring, _count) \  argument
1007 	(_ring).head = ((_ring).head + (_count)) % (_ring).size
1009 #define IRDMA_RING_MOVE_TAIL(_ring) \  argument
1010 	(_ring).tail = ((_ring).tail + 1) % (_ring).size
1012 #define IRDMA_RING_MOVE_HEAD_NOCHECK(_ring) \  argument
1013 	(_ring).head = ((_ring).head + 1) % (_ring).size
1015 #define IRDMA_RING_MOVE_TAIL_BY_COUNT(_ring, _count) \  argument
1016 	(_ring).tail = ((_ring).tail + (_count)) % (_ring).size
1018 #define IRDMA_RING_SET_TAIL(_ring, _pos) \  argument
1019 	(_ring).tail = (_pos) % (_ring).size
1021 #define IRDMA_RING_FULL_ERR(_ring) \  argument
1023 		(IRDMA_RING_USED_QUANTA(_ring) == ((_ring).size - 1))  \
1026 #define IRDMA_ERR_RING_FULL2(_ring) \  argument
1028 		(IRDMA_RING_USED_QUANTA(_ring) == ((_ring).size - 2))  \
1031 #define IRDMA_ERR_RING_FULL3(_ring) \  argument
1033 		(IRDMA_RING_USED_QUANTA(_ring) == ((_ring).size - 3))  \
1036 #define IRDMA_SQ_RING_FULL_ERR(_ring) \  argument
1038 		(IRDMA_RING_USED_QUANTA(_ring) == ((_ring).size - 257))  \
1041 #define IRDMA_ERR_SQ_RING_FULL2(_ring) \  argument
1043 		(IRDMA_RING_USED_QUANTA(_ring) == ((_ring).size - 258))  \
1045 #define IRDMA_ERR_SQ_RING_FULL3(_ring) \  argument
1047 		(IRDMA_RING_USED_QUANTA(_ring) == ((_ring).size - 259))  \
1049 #define IRDMA_RING_MORE_WORK(_ring) \  argument
1051 		(IRDMA_RING_USED_QUANTA(_ring) != 0) \
1054 #define IRDMA_RING_USED_QUANTA(_ring) \  argument
1056 		(((_ring).head + (_ring).size - (_ring).tail) % (_ring).size) \
1059 #define IRDMA_RING_FREE_QUANTA(_ring) \  argument
1061 		((_ring).size - IRDMA_RING_USED_QUANTA(_ring) - 1) \
1064 #define IRDMA_SQ_RING_FREE_QUANTA(_ring) \  argument
1066 		((_ring).size - IRDMA_RING_USED_QUANTA(_ring) - 257) \
1069 #define IRDMA_ATOMIC_RING_MOVE_HEAD(_ring, index, _retcode) \  argument
1071 		index = IRDMA_RING_CURRENT_HEAD(_ring); \
1072 		IRDMA_RING_MOVE_HEAD(_ring, _retcode); \