From mboxrd@z Thu Jan 1 00:00:00 1970 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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,T_DKIMWL_WL_HIGH, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by aws-us-west-2-korg-lkml-1.web.codeaurora.org (Postfix) with ESMTP id 4CAC1C433EF for ; Tue, 12 Jun 2018 16:53:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 019EF208C2 for ; Tue, 12 Jun 2018 16:53:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="VoWET/cP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 019EF208C2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935103AbeFLQw4 (ORCPT ); Tue, 12 Jun 2018 12:52:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:48380 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935055AbeFLQwp (ORCPT ); Tue, 12 Jun 2018 12:52:45 -0400 Received: from localhost (LFbn-1-12247-202.w90-92.abo.wanadoo.fr [90.92.61.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CF229208BA; Tue, 12 Jun 2018 16:52:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1528822364; bh=avp+9hWZlz1nx00jnBhnWOQsnGhE/qh8DC/EkZ/pErQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VoWET/cPvMz9Xvus6zxp/FQyASYw99kRsYhgYqP1naKlydf2Xv1t6NzGHWwbIQGjw uB6HyauPA9qYkE1+IaTQgDnm62p0Nvr1Ihr0qGBJgyRaguTnBSKg8uyYRYRojetZhK 2umLKiJr2kNwLQev03Vc+8wGkxCmrr+nn60IHKEo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Govindarajulu Varadarajan , "David S. Miller" Subject: [PATCH 4.4 11/24] enic: set DMA mask to 47 bit Date: Tue, 12 Jun 2018 18:51:55 +0200 Message-Id: <20180612164817.129520725@linuxfoundation.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180612164816.587001852@linuxfoundation.org> References: <20180612164816.587001852@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Govindarajulu Varadarajan [ Upstream commit 322eaa06d55ebc1402a4a8d140945cff536638b4 ] In commit 624dbf55a359b ("driver/net: enic: Try DMA 64 first, then failover to DMA") DMA mask was changed from 40 bits to 64 bits. Hardware actually supports only 47 bits. Fixes: 624dbf55a359b ("driver/net: enic: Try DMA 64 first, then failover to DMA") Signed-off-by: Govindarajulu Varadarajan Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/cisco/enic/enic_main.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -2543,11 +2543,11 @@ static int enic_probe(struct pci_dev *pd pci_set_master(pdev); /* Query PCI controller on system for DMA addressing - * limitation for the device. Try 64-bit first, and + * limitation for the device. Try 47-bit first, and * fail to 32-bit. */ - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(47)); if (err) { err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (err) { @@ -2561,10 +2561,10 @@ static int enic_probe(struct pci_dev *pd goto err_out_release_regions; } } else { - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(47)); if (err) { dev_err(dev, "Unable to obtain %u-bit DMA " - "for consistent allocations, aborting\n", 64); + "for consistent allocations, aborting\n", 47); goto err_out_release_regions; } using_dac = 1;