Lines Matching defs:db
11 struct hns_roce_db *db)
44 db->dma = sg_dma_address(page->umem->sgt_append.sgt.sgl) + offset;
45 db->virt_addr = sg_virt(page->umem->sgt_append.sgt.sgl) + offset;
46 db->u.user_page = page;
56 struct hns_roce_db *db)
60 refcount_dec(&db->u.user_page->refcount);
61 if (refcount_dec_if_one(&db->u.user_page->refcount)) {
62 list_del(&db->u.user_page->list);
63 ib_umem_release(db->u.user_page->umem);
64 kfree(db->u.user_page);
94 struct hns_roce_db *db, int order)
115 db->u.pgdir = pgdir;
116 db->index = i;
117 db->db_record = pgdir->page + db->index;
118 db->dma = pgdir->db_dma + db->index * HNS_ROCE_DB_UNIT_SIZE;
119 db->order = order;
124 int hns_roce_alloc_db(struct hns_roce_dev *hr_dev, struct hns_roce_db *db,
133 if (!hns_roce_alloc_db_from_pgdir(pgdir, db, order))
145 WARN_ON(hns_roce_alloc_db_from_pgdir(pgdir, db, order));
153 void hns_roce_free_db(struct hns_roce_dev *hr_dev, struct hns_roce_db *db)
160 o = db->order;
161 i = db->index;
163 if (db->order == 0 && test_bit(i ^ 1, db->u.pgdir->order0)) {
164 clear_bit(i ^ 1, db->u.pgdir->order0);
169 set_bit(i, db->u.pgdir->bits[o]);
171 if (bitmap_full(db->u.pgdir->order1,
173 dma_free_coherent(hr_dev->dev, PAGE_SIZE, db->u.pgdir->page,
174 db->u.pgdir->db_dma);
175 list_del(&db->u.pgdir->list);
176 kfree(db->u.pgdir);