Lines Matching refs:pbl

1189 static int pbl_chunk_list_create(struct efa_dev *dev, struct pbl_context *pbl)
1191 	struct pbl_chunk_list *chunk_list = &pbl->phys.indirect.chunk_list;
1192 	int page_cnt = pbl->phys.indirect.pbl_buf_size_in_pages;
1193 	struct scatterlist *pages_sgl = pbl->phys.indirect.sgl;
1195 	int sg_dma_cnt = pbl->phys.indirect.sg_dma_cnt;
1289 static void pbl_chunk_list_destroy(struct efa_dev *dev, struct pbl_context *pbl)
1291 	struct pbl_chunk_list *chunk_list = &pbl->phys.indirect.chunk_list;
1303 /* initialize pbl continuous mode: map pbl buffer to a dma address. */
1305 				     struct pbl_context *pbl)
1309 	dma_addr = dma_map_single(&dev->pdev->dev, pbl->pbl_buf,
1310 				  pbl->pbl_buf_size_in_bytes, DMA_TO_DEVICE);
1312 		ibdev_err(&dev->ibdev, "Unable to map pbl to DMA address\n");
1316 	pbl->phys.continuous.dma_addr = dma_addr;
1318 		  "pbl continuous - dma_addr = %pad, size[%u]\n",
1319 		  &dma_addr, pbl->pbl_buf_size_in_bytes);
1325  * initialize pbl indirect mode:
1327  * pbl buffer.
1329 static int pbl_indirect_initialize(struct efa_dev *dev, struct pbl_context *pbl)
1331 	u32 size_in_pages = DIV_ROUND_UP(pbl->pbl_buf_size_in_bytes, EFA_CHUNK_PAYLOAD_SIZE);
1336 	sgl = efa_vmalloc_buf_to_sg(pbl->pbl_buf, size_in_pages);
1346 	pbl->phys.indirect.pbl_buf_size_in_pages = size_in_pages;
1347 	pbl->phys.indirect.sgl = sgl;
1348 	pbl->phys.indirect.sg_dma_cnt = sg_dma_cnt;
1349 	err = pbl_chunk_list_create(dev, pbl);
1357 		  "pbl indirect - size[%u], chunks[%u]\n",
1358 		  pbl->pbl_buf_size_in_bytes,
1359 		  pbl->phys.indirect.chunk_list.size);
1370 static void pbl_indirect_terminate(struct efa_dev *dev, struct pbl_context *pbl)
1372 	pbl_chunk_list_destroy(dev, pbl);
1373 	dma_unmap_sg(&dev->pdev->dev, pbl->phys.indirect.sgl,
1374 		     pbl->phys.indirect.pbl_buf_size_in_pages, DMA_TO_DEVICE);
1375 	kfree(pbl->phys.indirect.sgl);
1380 		      struct pbl_context *pbl,
1387 	pbl->pbl_buf_size_in_bytes = hp_cnt * EFA_CHUNK_PAYLOAD_PTR_SIZE;
1388 	pbl->pbl_buf = kvzalloc(pbl->pbl_buf_size_in_bytes, GFP_KERNEL);
1389 	if (!pbl->pbl_buf)
1392 	if (is_vmalloc_addr(pbl->pbl_buf)) {
1393 		pbl->physically_continuous = 0;
1394 		err = umem_to_page_list(dev, umem, pbl->pbl_buf, hp_cnt,
1399 		err = pbl_indirect_initialize(dev, pbl);
1403 		pbl->physically_continuous = 1;
1404 		err = umem_to_page_list(dev, umem, pbl->pbl_buf, hp_cnt,
1409 		err = pbl_continuous_initialize(dev, pbl);
1416 		  hp_cnt, pbl->physically_continuous);
1421 	kvfree(pbl->pbl_buf);
1425 static void pbl_destroy(struct efa_dev *dev, struct pbl_context *pbl)
1427 	if (pbl->physically_continuous)
1428 		dma_unmap_single(&dev->pdev->dev, pbl->phys.continuous.dma_addr,
1429 				 pbl->pbl_buf_size_in_bytes, DMA_TO_DEVICE);
1431 		pbl_indirect_terminate(dev, pbl);
1433 	kvfree(pbl->pbl_buf);
1442 	err = umem_to_page_list(dev, mr->umem, params->pbl.inline_pbl_array,
1454 			  struct pbl_context *pbl,
1460 	err = pbl_create(dev, pbl, mr->umem, params->page_num,
1463 		ibdev_dbg(&dev->ibdev, "Failed to create pbl[%d]\n", err);
1468 	params->indirect = !pbl->physically_continuous;
1469 	if (pbl->physically_continuous) {
1470 		params->pbl.pbl.length = pbl->pbl_buf_size_in_bytes;
1472 		efa_com_set_dma_addr(pbl->phys.continuous.dma_addr,
1473 				     &params->pbl.pbl.address.mem_addr_high,
1474 				     &params->pbl.pbl.address.mem_addr_low);
1476 		params->pbl.pbl.length =
1477 			pbl->phys.indirect.chunk_list.chunks[0].length;
1479 		efa_com_set_dma_addr(pbl->phys.indirect.chunk_list.chunks[0].dma_addr,
1480 				     &params->pbl.pbl.address.mem_addr_high,
1481 				     &params->pbl.pbl.address.mem_addr_low);
1494 	struct pbl_context pbl;
1558 	inline_size = ARRAY_SIZE(params.pbl.inline_pbl_array);
1568 		err = efa_create_pbl(dev, &pbl, mr, &params);
1573 		pbl_destroy(dev, &pbl);