Lines Matching refs:pbl

1268 static int pbl_chunk_list_create(struct efa_dev *dev, struct pbl_context *pbl)
1270 	struct pbl_chunk_list *chunk_list = &pbl->phys.indirect.chunk_list;
1271 	int page_cnt = pbl->phys.indirect.pbl_buf_size_in_pages;
1272 	struct scatterlist *pages_sgl = pbl->phys.indirect.sgl;
1274 	int sg_dma_cnt = pbl->phys.indirect.sg_dma_cnt;
1368 static void pbl_chunk_list_destroy(struct efa_dev *dev, struct pbl_context *pbl)
1370 	struct pbl_chunk_list *chunk_list = &pbl->phys.indirect.chunk_list;
1382 /* initialize pbl continuous mode: map pbl buffer to a dma address. */
1384 				     struct pbl_context *pbl)
1388 	dma_addr = dma_map_single(&dev->pdev->dev, pbl->pbl_buf,
1389 				  pbl->pbl_buf_size_in_bytes, DMA_TO_DEVICE);
1391 		ibdev_err(&dev->ibdev, "Unable to map pbl to DMA address\n");
1395 	pbl->phys.continuous.dma_addr = dma_addr;
1397 		  "pbl continuous - dma_addr = %pad, size[%u]\n",
1398 		  &dma_addr, pbl->pbl_buf_size_in_bytes);
1404  * initialize pbl indirect mode:
1406  * pbl buffer.
1408 static int pbl_indirect_initialize(struct efa_dev *dev, struct pbl_context *pbl)
1410 	u32 size_in_pages = DIV_ROUND_UP(pbl->pbl_buf_size_in_bytes, EFA_CHUNK_PAYLOAD_SIZE);
1415 	sgl = efa_vmalloc_buf_to_sg(pbl->pbl_buf, size_in_pages);
1425 	pbl->phys.indirect.pbl_buf_size_in_pages = size_in_pages;
1426 	pbl->phys.indirect.sgl = sgl;
1427 	pbl->phys.indirect.sg_dma_cnt = sg_dma_cnt;
1428 	err = pbl_chunk_list_create(dev, pbl);
1436 		  "pbl indirect - size[%u], chunks[%u]\n",
1437 		  pbl->pbl_buf_size_in_bytes,
1438 		  pbl->phys.indirect.chunk_list.size);
1449 static void pbl_indirect_terminate(struct efa_dev *dev, struct pbl_context *pbl)
1451 	pbl_chunk_list_destroy(dev, pbl);
1452 	dma_unmap_sg(&dev->pdev->dev, pbl->phys.indirect.sgl,
1453 		     pbl->phys.indirect.pbl_buf_size_in_pages, DMA_TO_DEVICE);
1454 	kfree(pbl->phys.indirect.sgl);
1459 		      struct pbl_context *pbl,
1466 	pbl->pbl_buf_size_in_bytes = hp_cnt * EFA_CHUNK_PAYLOAD_PTR_SIZE;
1467 	pbl->pbl_buf = kvzalloc(pbl->pbl_buf_size_in_bytes, GFP_KERNEL);
1468 	if (!pbl->pbl_buf)
1471 	if (is_vmalloc_addr(pbl->pbl_buf)) {
1472 		pbl->physically_continuous = 0;
1473 		err = umem_to_page_list(dev, umem, pbl->pbl_buf, hp_cnt,
1478 		err = pbl_indirect_initialize(dev, pbl);
1482 		pbl->physically_continuous = 1;
1483 		err = umem_to_page_list(dev, umem, pbl->pbl_buf, hp_cnt,
1488 		err = pbl_continuous_initialize(dev, pbl);
1495 		  hp_cnt, pbl->physically_continuous);
1500 	kvfree(pbl->pbl_buf);
1504 static void pbl_destroy(struct efa_dev *dev, struct pbl_context *pbl)
1506 	if (pbl->physically_continuous)
1507 		dma_unmap_single(&dev->pdev->dev, pbl->phys.continuous.dma_addr,
1508 				 pbl->pbl_buf_size_in_bytes, DMA_TO_DEVICE);
1510 		pbl_indirect_terminate(dev, pbl);
1512 	kvfree(pbl->pbl_buf);
1521 	err = umem_to_page_list(dev, mr->umem, params->pbl.inline_pbl_array,
1533 			  struct pbl_context *pbl,
1539 	err = pbl_create(dev, pbl, mr->umem, params->page_num,
1542 		ibdev_dbg(&dev->ibdev, "Failed to create pbl[%d]\n", err);
1547 	params->indirect = !pbl->physically_continuous;
1548 	if (pbl->physically_continuous) {
1549 		params->pbl.pbl.length = pbl->pbl_buf_size_in_bytes;
1551 		efa_com_set_dma_addr(pbl->phys.continuous.dma_addr,
1552 				     &params->pbl.pbl.address.mem_addr_high,
1553 				     &params->pbl.pbl.address.mem_addr_low);
1555 		params->pbl.pbl.length =
1556 			pbl->phys.indirect.chunk_list.chunks[0].length;
1558 		efa_com_set_dma_addr(pbl->phys.indirect.chunk_list.chunks[0].dma_addr,
1559 				     &params->pbl.pbl.address.mem_addr_high,
1560 				     &params->pbl.pbl.address.mem_addr_low);
1606 	struct pbl_context pbl;
1632 	inline_size = ARRAY_SIZE(params.pbl.inline_pbl_array);
1642 		err = efa_create_pbl(dev, &pbl, mr, &params);
1647 		pbl_destroy(dev, &pbl);