From patchwork Sun Nov 29 21:17:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 11939331 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A9E4C64E7B for ; Sun, 29 Nov 2020 21:19:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4654620809 for ; Sun, 29 Nov 2020 21:19:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728471AbgK2VTX (ORCPT ); Sun, 29 Nov 2020 16:19:23 -0500 Received: from smtp04.smtpout.orange.fr ([80.12.242.126]:25464 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728287AbgK2VTW (ORCPT ); Sun, 29 Nov 2020 16:19:22 -0500 Received: from localhost.localdomain ([81.185.174.0]) by mwinf5d27 with ME id yMHZ2300B00t0l503MHa4m; Sun, 29 Nov 2020 22:17:37 +0100 X-ME-Helo: localhost.localdomain X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Sun, 29 Nov 2020 22:17:37 +0100 X-ME-IP: 81.185.174.0 From: Christophe JAILLET To: jiri@nvidia.com, idosch@nvidia.com, davem@davemloft.net, kuba@kernel.org Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET Subject: [PATCH] mlxsw: switch from 'pci_' to 'dma_' API Date: Sun, 29 Nov 2020 22:17:33 +0100 Message-Id: <20201129211733.2913-1-christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org he wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'mlxsw_pci_queue_init()' and 'mlxsw_pci_fw_area_init()' GFP_KERNEL can be used because this flag is already used in the same function. When memory is allocated in 'mlxsw_pci_mbox_alloc()' GFP_KERNEL can be used because it is only called from a probe function. The call chain is: --> mlxsw_pci_probe --> mlxsw_pci_cmd_init --> mlxsw_pci_mbox_alloc @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET --- If needed, see post from Christoph Hellwig on the kernel-janitors ML: https://marc.info/?l=kernel-janitors&m=158745678307186&w=4 --- drivers/net/ethernet/mellanox/mlxsw/pci.c | 52 +++++++++++------------ 1 file changed, 26 insertions(+), 26 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c index 641cdd81882b..7519d3b6934e 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/pci.c +++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c @@ -323,8 +323,8 @@ static int mlxsw_pci_wqe_frag_map(struct mlxsw_pci *mlxsw_pci, char *wqe, struct pci_dev *pdev = mlxsw_pci->pdev; dma_addr_t mapaddr; - mapaddr = pci_map_single(pdev, frag_data, frag_len, direction); - if (unlikely(pci_dma_mapping_error(pdev, mapaddr))) { + mapaddr = dma_map_single(&pdev->dev, frag_data, frag_len, direction); + if (unlikely(dma_mapping_error(&pdev->dev, mapaddr))) { dev_err_ratelimited(&pdev->dev, "failed to dma map tx frag\n"); return -EIO; } @@ -342,7 +342,7 @@ static void mlxsw_pci_wqe_frag_unmap(struct mlxsw_pci *mlxsw_pci, char *wqe, if (!frag_len) return; - pci_unmap_single(pdev, mapaddr, frag_len, direction); + dma_unmap_single(&pdev->dev, mapaddr, frag_len, direction); } static int mlxsw_pci_rdq_skb_alloc(struct mlxsw_pci *mlxsw_pci, @@ -858,9 +858,9 @@ static int mlxsw_pci_queue_init(struct mlxsw_pci *mlxsw_pci, char *mbox, tasklet_setup(&q->tasklet, q_ops->tasklet); mem_item->size = MLXSW_PCI_AQ_SIZE; - mem_item->buf = pci_alloc_consistent(mlxsw_pci->pdev, - mem_item->size, - &mem_item->mapaddr); + mem_item->buf = dma_alloc_coherent(&mlxsw_pci->pdev->dev, + mem_item->size, &mem_item->mapaddr, + GFP_KERNEL); if (!mem_item->buf) return -ENOMEM; @@ -890,8 +890,8 @@ static int mlxsw_pci_queue_init(struct mlxsw_pci *mlxsw_pci, char *mbox, err_q_ops_init: kfree(q->elem_info); err_elem_info_alloc: - pci_free_consistent(mlxsw_pci->pdev, mem_item->size, - mem_item->buf, mem_item->mapaddr); + dma_free_coherent(&mlxsw_pci->pdev->dev, mem_item->size, + mem_item->buf, mem_item->mapaddr); return err; } @@ -903,8 +903,8 @@ static void mlxsw_pci_queue_fini(struct mlxsw_pci *mlxsw_pci, q_ops->fini(mlxsw_pci, q); kfree(q->elem_info); - pci_free_consistent(mlxsw_pci->pdev, mem_item->size, - mem_item->buf, mem_item->mapaddr); + dma_free_coherent(&mlxsw_pci->pdev->dev, mem_item->size, + mem_item->buf, mem_item->mapaddr); } static int mlxsw_pci_queue_group_init(struct mlxsw_pci *mlxsw_pci, char *mbox, @@ -1242,9 +1242,9 @@ static int mlxsw_pci_fw_area_init(struct mlxsw_pci *mlxsw_pci, char *mbox, mem_item = &mlxsw_pci->fw_area.items[i]; mem_item->size = MLXSW_PCI_PAGE_SIZE; - mem_item->buf = pci_alloc_consistent(mlxsw_pci->pdev, - mem_item->size, - &mem_item->mapaddr); + mem_item->buf = dma_alloc_coherent(&mlxsw_pci->pdev->dev, + mem_item->size, + &mem_item->mapaddr, GFP_KERNEL); if (!mem_item->buf) { err = -ENOMEM; goto err_alloc; @@ -1273,8 +1273,8 @@ static int mlxsw_pci_fw_area_init(struct mlxsw_pci *mlxsw_pci, char *mbox, for (i--; i >= 0; i--) { mem_item = &mlxsw_pci->fw_area.items[i]; - pci_free_consistent(mlxsw_pci->pdev, mem_item->size, - mem_item->buf, mem_item->mapaddr); + dma_free_coherent(&mlxsw_pci->pdev->dev, mem_item->size, + mem_item->buf, mem_item->mapaddr); } kfree(mlxsw_pci->fw_area.items); return err; @@ -1290,8 +1290,8 @@ static void mlxsw_pci_fw_area_fini(struct mlxsw_pci *mlxsw_pci) for (i = 0; i < mlxsw_pci->fw_area.count; i++) { mem_item = &mlxsw_pci->fw_area.items[i]; - pci_free_consistent(mlxsw_pci->pdev, mem_item->size, - mem_item->buf, mem_item->mapaddr); + dma_free_coherent(&mlxsw_pci->pdev->dev, mem_item->size, + mem_item->buf, mem_item->mapaddr); } kfree(mlxsw_pci->fw_area.items); } @@ -1316,8 +1316,8 @@ static int mlxsw_pci_mbox_alloc(struct mlxsw_pci *mlxsw_pci, int err = 0; mbox->size = MLXSW_CMD_MBOX_SIZE; - mbox->buf = pci_alloc_consistent(pdev, MLXSW_CMD_MBOX_SIZE, - &mbox->mapaddr); + mbox->buf = dma_alloc_coherent(&pdev->dev, MLXSW_CMD_MBOX_SIZE, + &mbox->mapaddr, GFP_KERNEL); if (!mbox->buf) { dev_err(&pdev->dev, "Failed allocating memory for mailbox\n"); err = -ENOMEM; @@ -1331,8 +1331,8 @@ static void mlxsw_pci_mbox_free(struct mlxsw_pci *mlxsw_pci, { struct pci_dev *pdev = mlxsw_pci->pdev; - pci_free_consistent(pdev, MLXSW_CMD_MBOX_SIZE, mbox->buf, - mbox->mapaddr); + dma_free_coherent(&pdev->dev, MLXSW_CMD_MBOX_SIZE, mbox->buf, + mbox->mapaddr); } static int mlxsw_pci_sys_ready_wait(struct mlxsw_pci *mlxsw_pci, @@ -1817,17 +1817,17 @@ static int mlxsw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto err_pci_request_regions; } - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); + err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); if (!err) { - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64)); if (err) { - dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n"); + dev_err(&pdev->dev, "dma_set_coherent_mask failed\n"); goto err_pci_set_dma_mask; } } else { - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); if (err) { - dev_err(&pdev->dev, "pci_set_dma_mask failed\n"); + dev_err(&pdev->dev, "dma_set_mask failed\n"); goto err_pci_set_dma_mask; } }