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=-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 EB3CCC433B4 for ; Mon, 10 May 2021 14:28:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D1FA66143C for ; Mon, 10 May 2021 14:28:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242742AbhEJO3I (ORCPT ); Mon, 10 May 2021 10:29:08 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:2674 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235418AbhEJOXq (ORCPT ); Mon, 10 May 2021 10:23:46 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4Ff39B2V5Hz1BKmS; Mon, 10 May 2021 22:19:58 +0800 (CST) Received: from localhost.localdomain (10.69.192.58) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.498.0; Mon, 10 May 2021 22:22:29 +0800 From: John Garry To: , , , , CC: , , , , , , John Garry Subject: [PATCH v2 15/15] scsi: hisi_sas: Set max optimal DMA size for v3 hw Date: Mon, 10 May 2021 22:17:29 +0800 Message-ID: <1620656249-68890-16-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1620656249-68890-1-git-send-email-john.garry@huawei.com> References: <1620656249-68890-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.69.192.58] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For IOMMU strict mode, gives a big performance boost in some scenarios. Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 499c770d405c..365fc9de4be2 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -4675,6 +4675,11 @@ hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id) struct sas_ha_struct *sha; int rc, phy_nr, port_nr, i; + rc = dma_set_max_opt_size(dev, PAGE_SIZE * HISI_SAS_SGE_PAGE_CNT); + /* We can live with other errors */ + if (rc == -EPROBE_DEFER) + return rc; + rc = pci_enable_device(pdev); if (rc) goto err_out; -- 2.26.2