145  * @brief		Destroy a ring buffer
147  * @param ring		ring buffer
151 oce_destroy_ring_buffer(POCE_SOFTC sc, oce_ring_buffer_t *ring)  in oce_destroy_ring_buffer()  argument
153 	oce_dma_free(sc, &ring->dma);  in oce_destroy_ring_buffer()
154 	free(ring, M_DEVBUF);  in oce_destroy_ring_buffer()
163 	oce_ring_buffer_t *ring;  in oce_create_ring_buffer()  local
165 	ring = malloc(sizeof(oce_ring_buffer_t), M_DEVBUF, M_NOWAIT | M_ZERO);  in oce_create_ring_buffer()
166 	if (ring == NULL)   in oce_create_ring_buffer()
169 	ring->item_size = item_size;  in oce_create_ring_buffer()
170 	ring->num_items = q_len;  in oce_create_ring_buffer()
177 				size, 8, 4096, 0, NULL, NULL, &ring->dma.tag);  in oce_create_ring_buffer()
181 	rc = bus_dmamem_alloc(ring->dma.tag,  in oce_create_ring_buffer()
182 				&ring->dma.ptr,  in oce_create_ring_buffer()
184 				&ring->dma.map);  in oce_create_ring_buffer()
188 	bzero(ring->dma.ptr, size);  in oce_create_ring_buffer()
189 	bus_dmamap_sync(ring->dma.tag, ring->dma.map,  in oce_create_ring_buffer()
191 	ring->dma.paddr = 0;  in oce_create_ring_buffer()
193 	return ring;  in oce_create_ring_buffer()
196 	oce_dma_free(sc, &ring->dma);  in oce_create_ring_buffer()
197 	free(ring, M_DEVBUF);  in oce_create_ring_buffer()
198 	ring = NULL;  in oce_create_ring_buffer()
209  * @brief		Map ring buffer
234  * @brief		Load bus dma map for a ring buffer
235  * @param ring		ring buffer pointer
240 oce_page_list(oce_ring_buffer_t *ring, struct phys_addr *pa_list)  in oce_page_list()  argument
248 	bus_dmamap_load(ring->dma.tag,  in oce_page_list()
249 			ring->dma.map,  in oce_page_list()
250 			ring->dma.ptr,  in oce_page_list()
251 			ring->item_size * ring->num_items,  in oce_page_list()