From patchwork Wed Aug 31 00:34:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Li X-Patchwork-Id: 12960207 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 331A7ECAAD5 for ; Wed, 31 Aug 2022 00:35:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231634AbiHaAfH (ORCPT ); Tue, 30 Aug 2022 20:35:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231443AbiHaAeq (ORCPT ); Tue, 30 Aug 2022 20:34:46 -0400 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 96ED2A598B; Tue, 30 Aug 2022 17:34:43 -0700 (PDT) Received: by linux.microsoft.com (Postfix, from userid 1004) id 635E92045E2A; Tue, 30 Aug 2022 17:34:43 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 635E92045E2A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxonhyperv.com; s=default; t=1661906083; bh=j2CYby0MNn6oo7DPaFtS91QWa5bnsAlN30QWMn1LzMU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:Reply-To:From; b=Z1FnJfByZrIlplBHEBUpO1bllXm72YoZIROpDDdQvTeaP67VQG2r17wab4OCxMeD2 dELcEWG9qy1WYsaKF+FzkWV/9spQdZtBT/uwvXQLGtTlHhyhD1YmBdW4e6G75HdDuk 7wZMJaUDdd2X59cxRAwu0harAGYFFK7ogUKnE6W4= 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 v5 05/12] net: mana: Set the DMA device max segment size Date: Tue, 30 Aug 2022 17:34:24 -0700 Message-Id: <1661906071-29508-6-git-send-email-longli@linuxonhyperv.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1661906071-29508-1-git-send-email-longli@linuxonhyperv.com> References: <1661906071-29508-1-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 Reviewed-by: Dexuan Cui Signed-off-by: Long Li Acked-by: Haiyang Zhang --- 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 3c391b0cfab4..9a1885e47766 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)