From patchwork Tue Mar 7 06:09:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: chenxiang X-Patchwork-Id: 660396 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 00ED9C678D5 for ; Tue, 7 Mar 2023 05:39:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230248AbjCGFjT (ORCPT ); Tue, 7 Mar 2023 00:39:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48178 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230179AbjCGFjO (ORCPT ); Tue, 7 Mar 2023 00:39:14 -0500 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 871443B858 for ; Mon, 6 Mar 2023 21:39:13 -0800 (PST) Received: from kwepemi500016.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4PW42W3zgxzKqJs; Tue, 7 Mar 2023 13:37:07 +0800 (CST) Received: from localhost.localdomain (10.69.192.58) by kwepemi500016.china.huawei.com (7.221.188.220) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Tue, 7 Mar 2023 13:38:35 +0800 From: chenxiang To: , CC: , , Xiang Chen Subject: [PATCH 4/4] scsi: hisi_sas: Add device attribute experimental_iopoll_q_cnt for v3 hw Date: Tue, 7 Mar 2023 14:09:15 +0800 Message-ID: <1678169355-76215-5-git-send-email-chenxiang66@hisilicon.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1678169355-76215-1-git-send-email-chenxiang66@hisilicon.com> References: <1678169355-76215-1-git-send-email-chenxiang66@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.58] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemi500016.china.huawei.com (7.221.188.220) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Xiang Chen Add device attribute experimental_iopoll_q_cnt to indicate how many iopoll queues are used for v3 hw. Signed-off-by: Xiang Chen --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 1f6c026..8d0e2dd 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -2855,6 +2855,18 @@ static ssize_t intr_coal_count_v3_hw_store(struct device *dev, } static DEVICE_ATTR_RW(intr_coal_count_v3_hw); +static ssize_t iopoll_q_cnt_v3_hw_show(struct device *dev, + struct device_attribute + *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct hisi_hba *hisi_hba = shost_priv(shost); + + return scnprintf(buf, PAGE_SIZE, "%u\n", + hisi_hba->iopoll_q_cnt); +} +static DEVICE_ATTR_RO(iopoll_q_cnt_v3_hw); + static int slave_configure_v3_hw(struct scsi_device *sdev) { struct Scsi_Host *shost = dev_to_shost(&sdev->sdev_gendev); @@ -2884,6 +2896,7 @@ static struct attribute *host_v3_hw_attrs[] = { &dev_attr_intr_conv_v3_hw.attr, &dev_attr_intr_coal_ticks_v3_hw.attr, &dev_attr_intr_coal_count_v3_hw.attr, + &dev_attr_iopoll_q_cnt_v3_hw.attr, NULL };