iwlwifi/pcie/rx.c

222 				struct iwl_rx_mem_buffer *rxb)
229 		bd[rxq->write].addr = cpu_to_le64(rxb->page_dma);
230 		bd[rxq->write].rbid = cpu_to_le16(rxb->vid);
234 		bd[rxq->write] = cpu_to_le64(rxb->page_dma | rxb->vid);
238 		     (u32)rxb->vid, rxq->id, rxq->write);
248 	struct iwl_rx_mem_buffer *rxb;
264 		rxb = list_first_entry(&rxq->rx_free, struct iwl_rx_mem_buffer,
266 		list_del(&rxb->list);
267 		rxb->invalid = false;
269 		WARN_ON(rxb->page_dma & trans_pcie->supported_dma_mask);
271 		iwl_pcie_restock_bd(trans, rxq, rxb);
294 	struct iwl_rx_mem_buffer *rxb;
310 		/* The overwritten rxb must be a used one */
311 		rxb = rxq->queue[rxq->write];
312 		BUG_ON(rxb && rxb->page);
315 		rxb = list_first_entry(&rxq->rx_free, struct iwl_rx_mem_buffer,
317 		list_del(&rxb->list);
318 		rxb->invalid = false;
321 		bd[rxq->write] = iwl_pcie_dma_addr2rbd_ptr(rxb->page_dma);
322 		rxq->queue[rxq->write] = rxb;
433 	struct iwl_rx_mem_buffer *rxb;
457 		rxb = list_first_entry(&rxq->rx_used, struct iwl_rx_mem_buffer,
459 		list_del(&rxb->list);
462 		BUG_ON(rxb->page);
463 		rxb->page = page;
464 		rxb->offset = offset;
466 		rxb->page_dma =
467 			dma_map_page(trans->dev, page, rxb->offset,
470 		if (dma_mapping_error(trans->dev, rxb->page_dma)) {
471 			rxb->page = NULL;
473 			list_add(&rxb->list, &rxq->rx_used);
481 		list_add_tail(&rxb->list, &rxq->rx_free);
538 			struct iwl_rx_mem_buffer *rxb;
547 			/* Get the first rxb from the rbd list */
548 			rxb = list_first_entry(&local_empty,
550 			BUG_ON(rxb->page);
553 			page = iwl_pcie_rx_alloc_page(trans, &rxb->offset,
557 			rxb->page = page;
560 			rxb->page_dma = dma_map_page(trans->dev, page,
561 						     rxb->offset,
564 			if (dma_mapping_error(trans->dev, rxb->page_dma)) {
565 				rxb->page = NULL;
571 			list_move(&rxb->list, &local_allocated);
636 		struct iwl_rx_mem_buffer *rxb =
640 		list_move(&rxb->list, &rxq->rx_free);
1149 		struct iwl_rx_mem_buffer *rxb = &trans_pcie->rx_pool[i];
1152 			list_add(&rxb->list, &rba->rbd_empty);
1154 			list_add(&rxb->list, &def_rxq->rx_used);
1155 		trans_pcie->global_table[i] = rxb;
1156 		rxb->vid = (u16)(i + 1);
1157 		rxb->invalid = true;
1261 				  struct iwl_rx_mem_buffer *rxb,
1269 	list_add_tail(&rxb->list, &rxq->rx_used);
1294 				struct iwl_rx_mem_buffer *rxb,
1304 	if (WARN_ON(!rxb))
1307 	dma_unmap_page(trans->dev, rxb->page_dma, max_len, DMA_FROM_DEVICE);
1314 			._offset = rxb->offset + offset,
1316 			._page = rxb->page,
1402 				IWL_WARN(trans, "Claim null rxb?\n");
1412 		__free_pages(rxb->page, trans_pcie->rx_page_order);
1413 		rxb->page = NULL;
1419 	if (rxb->page != NULL) {
1420 		rxb->page_dma =
1421 			dma_map_page(trans->dev, rxb->page, rxb->offset,
1424 		if (dma_mapping_error(trans->dev, rxb->page_dma)) {
1430 			__free_pages(rxb->page, trans_pcie->rx_page_order);
1431 			rxb->page = NULL;
1432 			iwl_pcie_rx_reuse_rbd(trans, rxb, rxq, emergency);
1434 			list_add_tail(&rxb->list, &rxq->rx_free);
1438 		iwl_pcie_rx_reuse_rbd(trans, rxb, rxq, emergency);
1446 	struct iwl_rx_mem_buffer *rxb;
1453 		rxb = rxq->queue[i];
1455 		return rxb;
1477 	rxb = trans_pcie->global_table[vid - 1];
1478 	if (rxb->invalid)
1481 	IWL_DEBUG_RX(trans, "Got virtual RB ID %u\n", (u32)rxb->vid);
1483 	rxb->invalid = true;
1485 	return rxb;
1488 	WARN(1, "Invalid rxb from HW %u\n", (u32)vid);
1524 		struct iwl_rx_mem_buffer *rxb;
1542 		rxb = iwl_pcie_get_rxb(trans, rxq, i, &join);
1543 		if (!rxb)
1560 			list_add_tail(&rxb->list, &rxq->rx_free);
1563 			iwl_pcie_rx_handle_rb(trans, rxq, rxb, emergency, i);