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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 D4485C43387 for ; Wed, 19 Dec 2018 15:56:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AC1902133F for ; Wed, 19 Dec 2018 15:56:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730486AbeLSP4R (ORCPT ); Wed, 19 Dec 2018 10:56:17 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:16163 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729512AbeLSP4A (ORCPT ); Wed, 19 Dec 2018 10:56:00 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 2C78079033B1E; Wed, 19 Dec 2018 23:55:51 +0800 (CST) Received: from localhost.localdomain (10.67.212.75) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.408.0; Wed, 19 Dec 2018 23:55:46 +0800 From: John Garry To: , CC: , , , Luo Jiaxing , John Garry Subject: [PATCH 8/8] scsi: hisi_sas: Add debugfs IOST file and add file operations Date: Wed, 19 Dec 2018 23:56:46 +0800 Message-ID: <1545235006-151716-9-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1545235006-151716-1-git-send-email-john.garry@huawei.com> References: <1545235006-151716-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Luo Jiaxing This patch create debugfs file for IOST and add file operations. Signed-off-by: Luo Jiaxing Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas_main.c | 51 +++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 45a0be2..3d24366 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -2630,6 +2630,24 @@ static int hisi_sas_debugfs_port_open(struct inode *inode, struct file *filp) .owner = THIS_MODULE, }; +static int hisi_sas_show_row_64(struct seq_file *s, int index, + int sz, u64 *ptr) +{ + int i; + + /* completion header size not fixed per HW version */ + seq_printf(s, "index %04d:\n\t", index); + for (i = 1; i <= sz / 8; i++, ptr++) { + seq_printf(s, " 0x%016llx", le64_to_cpu(*ptr)); + if (!(i % 2)) + seq_puts(s, "\n\t"); + } + + seq_puts(s, "\n"); + + return 0; +} + static int hisi_sas_show_row_32(struct seq_file *s, int index, int sz, u32 *ptr) { @@ -2722,6 +2740,35 @@ static int hisi_sas_debugfs_dq_open(struct inode *inode, struct file *filp) .owner = THIS_MODULE, }; +static int hisi_sas_debugfs_iost_show(struct seq_file *s, void *p) +{ + struct hisi_hba *hisi_hba = s->private; + struct hisi_sas_iost *debugfs_iost = hisi_hba->debugfs_iost; + int i, ret, max_command_entries = hisi_hba->hw->max_command_entries; + + for (i = 0; i < max_command_entries; i++, debugfs_iost++) { + ret = hisi_sas_show_row_64(s, i, sizeof(*debugfs_iost), + (u64 *)debugfs_iost); + if (ret) + return ret; + } + + return 0; +} + +static int hisi_sas_debugfs_iost_open(struct inode *inode, struct file *filp) +{ + return single_open(filp, hisi_sas_debugfs_iost_show, inode->i_private); +} + +static const struct file_operations hisi_sas_debugfs_iost_fops = { + .open = hisi_sas_debugfs_iost_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba) { struct dentry *dump_dentry; @@ -2783,6 +2830,10 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba) goto fail; } + if (!debugfs_create_file("iost", 0400, dump_dentry, hisi_hba, + &hisi_sas_debugfs_iost_fops)) + goto fail; + return; fail: debugfs_remove_recursive(hisi_hba->debugfs_dir); -- 1.9.1