From patchwork Mon Nov 4 10:45:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Bogendoerfer X-Patchwork-Id: 1188870 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=suse.de Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 4768b14Pgrz9sPL for ; Mon, 4 Nov 2019 21:45:33 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728502AbfKDKpY (ORCPT ); Mon, 4 Nov 2019 05:45:24 -0500 Received: from mx2.suse.de ([195.135.220.15]:45082 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727553AbfKDKpY (ORCPT ); Mon, 4 Nov 2019 05:45:24 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id A0E75B1D2; Mon, 4 Nov 2019 10:45:22 +0000 (UTC) From: Thomas Bogendoerfer To: Ralf Baechle , "David S. Miller" , linux-mips@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Christoph Hellwig Subject: [net v3 3/5] net: sgi: ioc3-eth: simplify setting the DMA mask Date: Mon, 4 Nov 2019 11:45:13 +0100 Message-Id: <20191104104515.7066-3-tbogendoerfer@suse.de> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20191104104515.7066-1-tbogendoerfer@suse.de> References: <20191104104515.7066-1-tbogendoerfer@suse.de> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Christoph Hellwig There is no need to fall back to a lower mask these days, the DMA mask just communicates the hardware supported features. Signed-off-by: Christoph Hellwig Signed-off-by: Thomas Bogendoerfer --- drivers/net/ethernet/sgi/ioc3-eth.c | 27 +++++++-------------------- 1 file changed, 7 insertions(+), 20 deletions(-) diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c index 8a684d882e63..dc2e22652b55 100644 --- a/drivers/net/ethernet/sgi/ioc3-eth.c +++ b/drivers/net/ethernet/sgi/ioc3-eth.c @@ -1173,26 +1173,14 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct ioc3 *ioc3; unsigned long ioc3_base, ioc3_size; u32 vendor, model, rev; - int err, pci_using_dac; + int err; /* Configure DMA attributes. */ - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); - if (!err) { - pci_using_dac = 1; - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); - if (err < 0) { - pr_err("%s: Unable to obtain 64 bit DMA for consistent allocations\n", - pci_name(pdev)); - goto out; - } - } else { - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); - if (err) { - pr_err("%s: No usable DMA configuration, aborting.\n", - pci_name(pdev)); - goto out; - } - pci_using_dac = 0; + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + if (err) { + pr_err("%s: No usable DMA configuration, aborting.\n", + pci_name(pdev)); + goto out; } if (pci_enable_device(pdev)) @@ -1204,8 +1192,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto out_disable; } - if (pci_using_dac) - dev->features |= NETIF_F_HIGHDMA; + dev->features |= NETIF_F_HIGHDMA; err = pci_request_regions(pdev, "ioc3"); if (err)