From patchwork Fri Mar 24 10:45:27 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinpu Wang X-Patchwork-Id: 9642595 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 90AFD60328 for ; Fri, 24 Mar 2017 10:47:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A72B426E81 for ; Fri, 24 Mar 2017 10:47:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9BFD02823D; Fri, 24 Mar 2017 10:47:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C4EB626E81 for ; Fri, 24 Mar 2017 10:47:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756927AbdCXKry (ORCPT ); Fri, 24 Mar 2017 06:47:54 -0400 Received: from mail-wr0-f171.google.com ([209.85.128.171]:36044 "EHLO mail-wr0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935678AbdCXKro (ORCPT ); Fri, 24 Mar 2017 06:47:44 -0400 Received: by mail-wr0-f171.google.com with SMTP id u108so6737850wrb.3 for ; Fri, 24 Mar 2017 03:47:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=profitbricks-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=t37Zgh/4lh8F1kZKGDV/KeNJOmiQCZtpmOtTKY6gISc=; b=hnkB1Tm/JJcy4Q8+LkIn3MwK+FsntJUOziHXUSvrCR+Qv/PEC3bh0YB273LoseRJAL iLnqewU7Lc61NhbVnf2JNvqS4r9FfMH0rFTWbt0O17+vV5SSCkJaRUl8YzrW+m8g0a4f MaMEAs8SoDIjrmo452+SH+yTU5b3A5+6nRblMT2zv3Gjvsanw4DMgTKkb35f0lcIuoqg sSP5Vppu0fwJvid+TuBcbHmAxxEzAQBzh4C3Lhtqrf/sjteiZbi7lqbim28XBABNLm37 HEtz4ABs1qLR5q+UyUtJBVoVCFdDsQ5KHKRjoAPt/A33sYSNfBfp+tFbzQ9Pt+XvfV9s irDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=t37Zgh/4lh8F1kZKGDV/KeNJOmiQCZtpmOtTKY6gISc=; b=LrVuwLz0FH23aueiLqrYMovbHbIC6UAB/uOXlw50BDRlbDO1Da9+8YVB7Y0bROQGuc zduV1+QjTxFa5MCCyFsdhc0odChb/vjuCxzABM+0yxRK84qDcd/9Cio8/VFAidp1ViF1 d1d3lt7ws7imxS7TI9qTIur4O3w2RaP+d4hb7xZPuYS0571gkKACDypqcMAbFV3shqv1 e+D25HynjqI7k/0neNMmi2ODWbl2U+CCvToOIXj9LOE6tdaaR+nBVW8DDpnIebbJs2oF clyKXHZVrHLhpqBBPm6PaCbL03DmCS7wcKKBKK3ULutwd/AEKlYFhyhMZJXIyw4LGDbT Pe5Q== X-Gm-Message-State: AFeK/H2pb15v/+PSs4ttalxRlVwXEZiWqhH3jQFC2bo62Wvl22II3MCw1dlau1ze4IavbpVP X-Received: by 10.223.164.9 with SMTP id d9mr7137730wra.146.1490352462303; Fri, 24 Mar 2017 03:47:42 -0700 (PDT) Received: from jinpu-GA-870A-USB3.pb.local ([62.217.45.26]) by smtp.gmail.com with ESMTPSA id s17sm2404458wrc.25.2017.03.24.03.47.41 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 24 Mar 2017 03:47:41 -0700 (PDT) From: Jack Wang X-Google-Original-From: Jack Wang To: linux-block@vger.kernel.org, linux-rdma@vger.kernel.org Cc: dledford@redhat.com, axboe@kernel.dk, hch@lst.de, mail@fholler.de, Milind.dumbare@gmail.com, yun.wang@profitbricks.com, Jack Wang , Kleber Souza , Danil Kipnis , Roman Pen Subject: [PATCH 12/28] ibtrs_srv: add sysfs interface Date: Fri, 24 Mar 2017 11:45:27 +0100 Message-Id: <1490352343-20075-13-git-send-email-jinpu.wangl@profitbricks.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1490352343-20075-1-git-send-email-jinpu.wangl@profitbricks.com> References: <1490352343-20075-1-git-send-email-jinpu.wangl@profitbricks.com> Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jack Wang Signed-off-by: Jack Wang Signed-off-by: Kleber Souza Signed-off-by: Danil Kipnis Signed-off-by: Roman Pen --- .../infiniband/ulp/ibtrs_server/ibtrs_srv_sysfs.c | 301 +++++++++++++++++++++ .../infiniband/ulp/ibtrs_server/ibtrs_srv_sysfs.h | 59 ++++ 2 files changed, 360 insertions(+) create mode 100644 drivers/infiniband/ulp/ibtrs_server/ibtrs_srv_sysfs.c create mode 100644 drivers/infiniband/ulp/ibtrs_server/ibtrs_srv_sysfs.h diff --git a/drivers/infiniband/ulp/ibtrs_server/ibtrs_srv_sysfs.c b/drivers/infiniband/ulp/ibtrs_server/ibtrs_srv_sysfs.c new file mode 100644 index 0000000..c95a124 --- /dev/null +++ b/drivers/infiniband/ulp/ibtrs_server/ibtrs_srv_sysfs.c @@ -0,0 +1,301 @@ +/* + * InfiniBand Transport Layer + * + * Copyright (c) 2014 - 2017 ProfitBricks GmbH. All rights reserved. + * Authors: Fabian Holler < mail@fholler.de> + * Jack Wang + * Kleber Souza + * Danil Kipnis + * Roman Pen + * Milind Dumbare + * + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + * + */ + +#include "ibtrs_srv_sysfs.h" +#include "ibtrs_srv_internal.h" +#include +#include +#include + +static struct kobject *ibtrs_srv_kobj; +static struct kobject *ibtrs_srv_sessions_kobj; + +static ssize_t ibtrs_srv_hb_timeout_show(struct kobject *kobj, + struct kobj_attribute *attr, + char *page) +{ + struct ibtrs_session *sess = container_of(kobj, struct ibtrs_session, + kobj); + + return scnprintf(page, PAGE_SIZE, "%u\n", sess->heartbeat.timeout_ms); +} + +static ssize_t ibtrs_srv_hb_timeout_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t count) +{ + int ret; + u32 timeout_ms; + struct ibtrs_session *sess = container_of(kobj, struct ibtrs_session, + kobj); + + ret = kstrtouint(buf, 0, &timeout_ms); + if (ret) + return ret; + + ret = ibtrs_heartbeat_timeout_validate(timeout_ms); + if (ret) + return ret; + + INFO(sess, "%s: changing value from %u to %u\n", attr->attr.name, + sess->heartbeat.timeout_ms, timeout_ms); + ibtrs_set_heartbeat_timeout(&sess->heartbeat, timeout_ms); + return count; +} + +static struct kobj_attribute ibtrs_srv_heartbeat_timeout_ms_attr = + __ATTR(heartbeat_timeout_ms, 0644, + ibtrs_srv_hb_timeout_show, ibtrs_srv_hb_timeout_store); + +static ssize_t ibtrs_srv_disconnect_show(struct kobject *kobj, + struct kobj_attribute *attr, + char *page) +{ + return scnprintf(page, PAGE_SIZE, "Usage: echo 1 > %s\n", + attr->attr.name); +} + +static ssize_t ibtrs_srv_disconnect_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t count) +{ + struct ibtrs_session *sess = container_of(kobj, struct ibtrs_session, + kobj); + + if (!sysfs_streq(buf, "1")) { + ERR(sess, "%s: invalid value: '%s'\n", attr->attr.name, buf); + return -EINVAL; + } + + INFO(sess, "%s: Session disconnect requested\n", attr->attr.name); + ibtrs_srv_queue_close(sess); + + return count; +} + +static struct kobj_attribute disconnect_attr = + __ATTR(disconnect, 0644, + ibtrs_srv_disconnect_show, ibtrs_srv_disconnect_store); + +static ssize_t ibtrs_srv_current_hca_port_show(struct kobject *kobj, + struct kobj_attribute *attr, + char *page) +{ + struct ibtrs_session *sess = container_of(kobj, struct ibtrs_session, + kobj); + return ibtrs_srv_current_hca_port_to_str(sess, page, PAGE_SIZE); +} + +static struct kobj_attribute current_hca_port_attr = + __ATTR(current_hca_port, 0444, ibtrs_srv_current_hca_port_show, + NULL); + +static ssize_t ibtrs_srv_hca_name_show(struct kobject *kobj, + struct kobj_attribute *attr, + char *page) +{ + struct ibtrs_session *sess = container_of(kobj, struct ibtrs_session, + kobj); + + return scnprintf(page, PAGE_SIZE, "%s\n", + ibtrs_srv_get_sess_hca_name(sess)); +} + +static struct kobj_attribute hca_name_attr = + __ATTR(hca_name, 0444, ibtrs_srv_hca_name_show, NULL); + +static ssize_t hostname_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + struct ibtrs_session *sess = container_of(kobj, struct ibtrs_session, + kobj); + return sprintf(page, "%s\n", sess->hostname); +} + +static struct kobj_attribute hostname_attr = + __ATTR(hostname, 0444, hostname_show, NULL); + +static struct attribute *default_sess_attrs[] = { + &hca_name_attr.attr, + &hostname_attr.attr, + ¤t_hca_port_attr.attr, + &disconnect_attr.attr, + &ibtrs_srv_heartbeat_timeout_ms_attr.attr, + NULL, +}; + +static struct attribute_group default_sess_attr_group = { + .attrs = default_sess_attrs, +}; + +static void ibtrs_srv_sess_release(struct kobject *kobj) +{ + struct ibtrs_session *sess = container_of(kobj, struct ibtrs_session, + kobj); + + ibtrs_srv_sess_put(sess); +} + +static struct kobj_type ibtrs_srv_sess_ktype = { + .sysfs_ops = &kobj_sysfs_ops, + .release = ibtrs_srv_sess_release, +}; + +STAT_ATTR(rdma, ibtrs_srv_stats_rdma_to_str, ibtrs_srv_reset_rdma_stats); + +STAT_ATTR(user_ib_messages, ibtrs_srv_stats_user_ib_msgs_to_str, + ibtrs_srv_reset_user_ib_msgs_stats); + +STAT_ATTR(wc_completion, ibtrs_srv_stats_wc_completion_to_str, + ibtrs_srv_reset_wc_completion_stats); + +STAT_ATTR(reset_all, ibtrs_srv_reset_all_help, ibtrs_srv_reset_all_stats); + +static struct attribute *ibtrs_srv_default_stats_attrs[] = { + &rdma_attr.attr, + &user_ib_messages_attr.attr, + &wc_completion_attr.attr, + &reset_all_attr.attr, + NULL, +}; + +static struct attribute_group ibtrs_srv_default_stats_attr_group = { + .attrs = ibtrs_srv_default_stats_attrs, +}; + +static struct kobj_type ibtrs_stats_ktype = { + .sysfs_ops = &kobj_sysfs_ops, +}; + +static int ibtrs_srv_create_stats_files(struct ibtrs_session *sess) +{ + int ret; + + ret = kobject_init_and_add(&sess->kobj_stats, &ibtrs_stats_ktype, + &sess->kobj, "stats"); + if (ret) { + ERR(sess, + "Failed to init and add sysfs directory for session stats," + " errno: %d\n", ret); + return ret; + } + + ret = sysfs_create_group(&sess->kobj_stats, + &ibtrs_srv_default_stats_attr_group); + if (ret) { + ERR(sess, "Failed to create sysfs group for session stats," + " errno: %d\n", ret); + goto err; + } + + return 0; + +err: + kobject_put(&sess->kobj_stats); + + return ret; +} + +int ibtrs_srv_create_sess_files(struct ibtrs_session *sess) +{ + int ret; + + DEB("creating sysfs files for sess %s\n", sess->addr); + + if (WARN_ON(!ibtrs_srv_sess_get(sess))) + return -EINVAL; + + ret = kobject_init_and_add(&sess->kobj, &ibtrs_srv_sess_ktype, + ibtrs_srv_sessions_kobj, "%s", sess->addr); + if (ret) { + ERR(sess, "Failed to init and add sysfs directory for session," + " errno: %d\n", ret); + ibtrs_srv_sess_put(sess); + return ret; + } + + ret = sysfs_create_group(&sess->kobj, &default_sess_attr_group); + if (ret) { + ERR(sess, "Failed to create sysfs group for session," + " errno: %d\n", ret); + goto err; + } + + ret = ibtrs_srv_create_stats_files(sess); + if (ret) + goto err1; + + return 0; + +err1: + sysfs_remove_group(&sess->kobj, &default_sess_attr_group); +err: + kobject_put(&sess->kobj); + + return ret; +} + +int ibtrs_srv_create_sysfs_files(void) +{ + ibtrs_srv_kobj = kobject_create_and_add("ibtrs", kernel_kobj); + if (!ibtrs_srv_kobj) + return -ENOMEM; + + ibtrs_srv_sessions_kobj = kobject_create_and_add("sessions", + ibtrs_srv_kobj); + if (!ibtrs_srv_sessions_kobj) { + kobject_put(ibtrs_srv_kobj); + return -ENOMEM; + } + + return 0; +} + +void ibtrs_srv_destroy_sysfs_files(void) +{ + kobject_put(ibtrs_srv_sessions_kobj); + kobject_put(ibtrs_srv_kobj); +} diff --git a/drivers/infiniband/ulp/ibtrs_server/ibtrs_srv_sysfs.h b/drivers/infiniband/ulp/ibtrs_server/ibtrs_srv_sysfs.h new file mode 100644 index 0000000..e5dfa62 --- /dev/null +++ b/drivers/infiniband/ulp/ibtrs_server/ibtrs_srv_sysfs.h @@ -0,0 +1,59 @@ +/* + * InfiniBand Transport Layer + * + * Copyright (c) 2014 - 2017 ProfitBricks GmbH. All rights reserved. + * Authors: Fabian Holler < mail@fholler.de> + * Jack Wang + * Kleber Souza + * Danil Kipnis + * Roman Pen + * Milind Dumbare + * + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + * + */ + +#ifndef _IBTRS_SRV_SYFS_H +#define _IBTRS_SRV_SYFS_H + +#include +#include "ibtrs_srv_internal.h" + +int ibtrs_srv_create_sysfs_files(void); + +void ibtrs_srv_destroy_sysfs_files(void); + +int ibtrs_srv_create_sess_files(struct ibtrs_session *sess); + +#endif