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 5FCD4C43387 for ; Wed, 19 Dec 2018 15:56:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3A07F2133F for ; Wed, 19 Dec 2018 15:56:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730459AbeLSP4H (ORCPT ); Wed, 19 Dec 2018 10:56:07 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:16165 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730425AbeLSP4A (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 361BF1A9E0C6B; 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 23:55:45 +0800 From: John Garry To: , CC: , , , Luo Jiaxing , John Garry Subject: [PATCH 6/8] scsi: hisi_sas: Add debugfs CQ file and add file operations Date: Wed, 19 Dec 2018 23:56:44 +0800 Message-ID: <1545235006-151716-7-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 CQ and add file operations. Signed-off-by: Luo Jiaxing Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas_main.c | 70 +++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index fbd9b4a..ce0a9dc 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -2630,12 +2630,68 @@ static int hisi_sas_debugfs_port_open(struct inode *inode, struct file *filp) .owner = THIS_MODULE, }; +static int hisi_sas_show_row_32(struct seq_file *s, int index, + int sz, u32 *ptr) +{ + int i; + + /* completion header size not fixed per HW version */ + seq_printf(s, "index %04d:\n\t", index); + for (i = 1; i <= sz / 4; i++, ptr++) { + if (!(i % 4)) + seq_puts(s, "\n\t"); + } + seq_puts(s, "\n"); + + return 0; +} + +static int hisi_sas_cq_show_slot(struct seq_file *s, int slot, void *cq_ptr) +{ + struct hisi_sas_cq *cq = cq_ptr; + struct hisi_hba *hisi_hba = cq->hisi_hba; + void *complete_queue = hisi_hba->debugfs_complete_hdr[cq->id]; + void *complete_hdr = complete_queue + + (hisi_hba->hw->complete_hdr_size * slot); + + return hisi_sas_show_row_32(s, slot, + hisi_hba->hw->complete_hdr_size, + complete_hdr); +} + +static int hisi_sas_debugfs_cq_show(struct seq_file *s, void *p) +{ + struct hisi_sas_cq *cq = s->private; + int slot, ret; + + for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) { + ret = hisi_sas_cq_show_slot(s, slot, cq); + if (ret) + return ret; + } + return 0; +} + +static int hisi_sas_debugfs_cq_open(struct inode *inode, struct file *filp) +{ + return single_open(filp, hisi_sas_debugfs_cq_show, inode->i_private); +} + +static const struct file_operations hisi_sas_debugfs_cq_fops = { + .open = hisi_sas_debugfs_cq_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; struct dentry *dentry; char name[256]; int p; + int c; /* Create dump dir inside device dir */ dump_dentry = debugfs_create_dir("dump", hisi_hba->debugfs_dir); @@ -2661,6 +2717,20 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba) goto fail; } + /* Create CQ dir and files */ + dentry = debugfs_create_dir("cq", dump_dentry); + if (!dentry) + goto fail; + + for (c = 0; c < hisi_hba->queue_count; c++) { + snprintf(name, 256, "%d", c); + + if (!debugfs_create_file(name, 0400, dentry, + &hisi_hba->cq[c], + &hisi_sas_debugfs_cq_fops)) + goto fail; + } + return; fail: debugfs_remove_recursive(hisi_hba->debugfs_dir); -- 1.9.1