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 7A197C43619 for ; Fri, 19 Mar 2021 13:31:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 46AE764F91 for ; Fri, 19 Mar 2021 13:31:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230332AbhCSNau (ORCPT ); Fri, 19 Mar 2021 09:30:50 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:14017 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230254AbhCSNaT (ORCPT ); Fri, 19 Mar 2021 09:30:19 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4F24T24JxyzPk7t; Fri, 19 Mar 2021 21:27:50 +0800 (CST) Received: from localhost.localdomain (10.69.192.58) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.498.0; Fri, 19 Mar 2021 21:30:08 +0800 From: John Garry To: , , , , , , CC: , , , , John Garry Subject: [PATCH 6/6] scsi: hisi_sas: Set max optimal DMA size for v3 hw Date: Fri, 19 Mar 2021 21:25:48 +0800 Message-ID: <1616160348-29451-7-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1616160348-29451-1-git-send-email-john.garry@huawei.com> References: <1616160348-29451-1-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, more than doubles throughput in some scenarios. Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 4580e081e489..2f77b418bbeb 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -4684,6 +4684,8 @@ hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto err_out_regions; } + dma_set_max_opt_size(dev, PAGE_SIZE * HISI_SAS_SGE_PAGE_CNT); + shost = hisi_sas_shost_alloc_pci(pdev); if (!shost) { rc = -ENOMEM; -- 2.26.2