From patchwork Sun Jun 12 21:14:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Li X-Patchwork-Id: 12878834 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C0D5CCA473 for ; Sun, 12 Jun 2022 21:15:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234393AbiFLVPQ (ORCPT ); Sun, 12 Jun 2022 17:15:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236091AbiFLVPN (ORCPT ); Sun, 12 Jun 2022 17:15:13 -0400 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 2E3B7590A6; Sun, 12 Jun 2022 14:15:12 -0700 (PDT) Received: by linux.microsoft.com (Postfix, from userid 1004) id E87E420C14D1; Sun, 12 Jun 2022 14:15:11 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com E87E420C14D1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxonhyperv.com; s=default; t=1655068511; bh=GFhQPUGWrbgZzC2192zgVbA+JDQi/fpd3+vs9e/absk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:Reply-To:From; b=o72+hOYTCd1lbQIH7QyoGF6Qjs4uuaHKmE1EVmOR1g1BhphtKg8jN03LBE3BcyIbJ cuqlqK31quek9XzwfwpcXJJVQfDrYMv+uuau3CS49i5XQibIexz/as6fw2FYkJFpvn gJlMBIYwiqF1VQcFtnRNIEvoqaWebcz9RlIqQ/qY= From: longli@linuxonhyperv.com To: "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Wei Liu , Dexuan Cui , "David S. Miller" , Jakub Kicinski , Paolo Abeni , Jason Gunthorpe , Leon Romanovsky , edumazet@google.com, shiraz.saleem@intel.com, Ajay Sharma Cc: linux-hyperv@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, Long Li Subject: [Patch v3 05/12] net: mana: Set the DMA device max segment size Date: Sun, 12 Jun 2022 14:14:47 -0700 Message-Id: <1655068494-16440-6-git-send-email-longli@linuxonhyperv.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1655068494-16440-1-git-send-email-longli@linuxonhyperv.com> References: <1655068494-16440-1-git-send-email-longli@linuxonhyperv.com> Reply-To: longli@microsoft.com Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Ajay Sharma MANA hardware doesn't have any restrictions on the DMA segment size, set it to the max allowed value. Signed-off-by: Ajay Sharma Signed-off-by: Long Li --- Change log: v2: Use the max allowed value as the hardware doesn't have any limit drivers/net/ethernet/microsoft/mana/gdma_main.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c index 7b42b78b7ddf..0c38c9a539f9 100644 --- a/drivers/net/ethernet/microsoft/mana/gdma_main.c +++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c @@ -1387,6 +1387,12 @@ static int mana_gd_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (err) goto release_region; + err = dma_set_max_seg_size(&pdev->dev, UINT_MAX); + if (err) { + dev_err(&pdev->dev, "Failed to set dma device segment size\n"); + goto release_region; + } + err = -ENOMEM; gc = vzalloc(sizeof(*gc)); if (!gc)