3096 void __rdma_block_iter_start(struct ib_block_iter *biter,  in __rdma_block_iter_start()  argument
3100 	memset(biter, 0, sizeof(struct ib_block_iter));  in __rdma_block_iter_start()
3101 	biter->__sg = sglist;  in __rdma_block_iter_start()
3102 	biter->__sg_nents = nents;  in __rdma_block_iter_start()
3105 	biter->__pg_bit = __fls(pgsz);  in __rdma_block_iter_start()
3109 bool __rdma_block_iter_next(struct ib_block_iter *biter)  in __rdma_block_iter_next()  argument
3114 	if (!biter->__sg_nents || !biter->__sg)  in __rdma_block_iter_next()
3117 	biter->__dma_addr = sg_dma_address(biter->__sg) + biter->__sg_advance;  in __rdma_block_iter_next()
3118 	block_offset = biter->__dma_addr & (BIT_ULL(biter->__pg_bit) - 1);  in __rdma_block_iter_next()
3119 	delta = BIT_ULL(biter->__pg_bit) - block_offset;  in __rdma_block_iter_next()
3121 	while (biter->__sg_nents && biter->__sg &&  in __rdma_block_iter_next()
3122 	       sg_dma_len(biter->__sg) - biter->__sg_advance <= delta) {  in __rdma_block_iter_next()
3123 		delta -= sg_dma_len(biter->__sg) - biter->__sg_advance;  in __rdma_block_iter_next()
3124 		biter->__sg_advance = 0;  in __rdma_block_iter_next()
3125 		biter->__sg = sg_next(biter->__sg);  in __rdma_block_iter_next()
3126 		biter->__sg_nents--;  in __rdma_block_iter_next()
3128 	biter->__sg_advance += delta;  in __rdma_block_iter_next()