Lines Matching refs:db
12 struct hns_roce_db *db) in hns_roce_db_map_user() argument
45 db->dma = sg_dma_address(page->umem->sgt_append.sgt.sgl) + offset; in hns_roce_db_map_user()
46 db->virt_addr = sg_virt(page->umem->sgt_append.sgt.sgl) + offset; in hns_roce_db_map_user()
47 db->u.user_page = page; in hns_roce_db_map_user()
57 struct hns_roce_db *db) in hns_roce_db_unmap_user() argument
61 refcount_dec(&db->u.user_page->refcount); in hns_roce_db_unmap_user()
62 if (refcount_dec_if_one(&db->u.user_page->refcount)) { in hns_roce_db_unmap_user()
63 list_del(&db->u.user_page->list); in hns_roce_db_unmap_user()
64 ib_umem_release(db->u.user_page->umem); in hns_roce_db_unmap_user()
65 kfree(db->u.user_page); in hns_roce_db_unmap_user()
95 struct hns_roce_db *db, int order) in hns_roce_alloc_db_from_pgdir() argument
116 db->u.pgdir = pgdir; in hns_roce_alloc_db_from_pgdir()
117 db->index = i; in hns_roce_alloc_db_from_pgdir()
118 db->db_record = pgdir->page + db->index; in hns_roce_alloc_db_from_pgdir()
119 db->dma = pgdir->db_dma + db->index * HNS_ROCE_DB_UNIT_SIZE; in hns_roce_alloc_db_from_pgdir()
120 db->order = order; in hns_roce_alloc_db_from_pgdir()
125 int hns_roce_alloc_db(struct hns_roce_dev *hr_dev, struct hns_roce_db *db, in hns_roce_alloc_db() argument
134 if (!hns_roce_alloc_db_from_pgdir(pgdir, db, order)) in hns_roce_alloc_db()
146 WARN_ON(hns_roce_alloc_db_from_pgdir(pgdir, db, order)); in hns_roce_alloc_db()
154 void hns_roce_free_db(struct hns_roce_dev *hr_dev, struct hns_roce_db *db) in hns_roce_free_db() argument
161 o = db->order; in hns_roce_free_db()
162 i = db->index; in hns_roce_free_db()
164 if (db->order == 0 && test_bit(i ^ 1, db->u.pgdir->order0)) { in hns_roce_free_db()
165 clear_bit(i ^ 1, db->u.pgdir->order0); in hns_roce_free_db()
170 set_bit(i, db->u.pgdir->bits[o]); in hns_roce_free_db()
172 if (bitmap_full(db->u.pgdir->order1, in hns_roce_free_db()
174 dma_free_coherent(hr_dev->dev, PAGE_SIZE, db->u.pgdir->page, in hns_roce_free_db()
175 db->u.pgdir->db_dma); in hns_roce_free_db()
176 list_del(&db->u.pgdir->list); in hns_roce_free_db()
177 kfree(db->u.pgdir); in hns_roce_free_db()