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=-6.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, UNWANTED_LANGUAGE_BODY,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 27342C43387 for ; Wed, 19 Dec 2018 15:56:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 028152133F for ; Wed, 19 Dec 2018 15:56:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730448AbeLSP4E (ORCPT ); Wed, 19 Dec 2018 10:56:04 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:16164 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730420AbeLSP4A (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 31813130E497F; 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 7/8] scsi: hisi_sas: Add debugfs DQ file and add file operations Date: Wed, 19 Dec 2018 23:56:45 +0800 Message-ID: <1545235006-151716-8-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 DQ and add file operations Signed-off-by: Luo Jiaxing Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas_main.c | 52 +++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index ce0a9dc..45a0be2 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -2685,6 +2685,43 @@ static int hisi_sas_debugfs_cq_open(struct inode *inode, struct file *filp) .owner = THIS_MODULE, }; +static int hisi_sas_dq_show_slot(struct seq_file *s, int slot, void *dq_ptr) +{ + struct hisi_sas_dq *dq = dq_ptr; + struct hisi_hba *hisi_hba = dq->hisi_hba; + void *cmd_queue = hisi_hba->debugfs_cmd_hdr[dq->id]; + void *cmd_hdr = cmd_queue + + hisi_hba->hw->complete_hdr_size * slot; + + return hisi_sas_show_row_32(s, slot, sizeof(struct hisi_sas_cmd_hdr), + cmd_hdr); +} + +static int hisi_sas_debugfs_dq_show(struct seq_file *s, void *p) +{ + int slot, ret; + + for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) { + ret = hisi_sas_dq_show_slot(s, slot, s->private); + if (ret) + return ret; + } + return 0; +} + +static int hisi_sas_debugfs_dq_open(struct inode *inode, struct file *filp) +{ + return single_open(filp, hisi_sas_debugfs_dq_show, inode->i_private); +} + +static const struct file_operations hisi_sas_debugfs_dq_fops = { + .open = hisi_sas_debugfs_dq_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; @@ -2692,6 +2729,7 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba) char name[256]; int p; int c; + int d; /* Create dump dir inside device dir */ dump_dentry = debugfs_create_dir("dump", hisi_hba->debugfs_dir); @@ -2731,6 +2769,20 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba) goto fail; } + /* Create DQ dir and files */ + dentry = debugfs_create_dir("dq", dump_dentry); + if (!dentry) + goto fail; + + for (d = 0; d < hisi_hba->queue_count; d++) { + snprintf(name, 256, "%d", d); + + if (!debugfs_create_file(name, 0400, dentry, + &hisi_hba->dq[d], + &hisi_sas_debugfs_dq_fops)) + goto fail; + } + return; fail: debugfs_remove_recursive(hisi_hba->debugfs_dir); -- 1.9.1