3016 void __rdma_block_iter_start(struct ib_block_iter *biter,  in __rdma_block_iter_start()  argument
3020 	memset(biter, 0, sizeof(struct ib_block_iter));  in __rdma_block_iter_start()
3021 	biter->__sg = sglist;  in __rdma_block_iter_start()
3022 	biter->__sg_nents = nents;  in __rdma_block_iter_start()
3025 	biter->__pg_bit = __fls(pgsz);  in __rdma_block_iter_start()
3029 bool __rdma_block_iter_next(struct ib_block_iter *biter)  in __rdma_block_iter_next()  argument
3034 	if (!biter->__sg_nents || !biter->__sg)  in __rdma_block_iter_next()
3037 	biter->__dma_addr = sg_dma_address(biter->__sg) + biter->__sg_advance;  in __rdma_block_iter_next()
3038 	block_offset = biter->__dma_addr & (BIT_ULL(biter->__pg_bit) - 1);  in __rdma_block_iter_next()
3039 	sg_delta = BIT_ULL(biter->__pg_bit) - block_offset;  in __rdma_block_iter_next()
3041 	if (sg_dma_len(biter->__sg) - biter->__sg_advance > sg_delta) {  in __rdma_block_iter_next()
3042 		biter->__sg_advance += sg_delta;  in __rdma_block_iter_next()
3044 		biter->__sg_advance = 0;  in __rdma_block_iter_next()
3045 		biter->__sg = sg_next(biter->__sg);  in __rdma_block_iter_next()
3046 		biter->__sg_nents--;  in __rdma_block_iter_next()