From: Jack Wang <jinpu.w...@profitbricks.com>
Signed-off-by: Jack Wang <jinpu.w...@profitbricks.com>
Signed-off-by: Kleber Souza <kleber.so...@profitbricks.com>
Signed-off-by: Danil Kipnis <danil.kip...@profitbricks.com>
Signed-off-by: Roman Pen <roman.peny...@profitbricks.com>
---
.../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 < m...@fholler.de>
+ * Jack Wang <jinpu.w...@profitbricks.com>
+ * Kleber Souza <kleber.so...@profitbricks.com>
+ * Danil Kipnis <danil.kip...@profitbricks.com>
+ * Roman Pen <roman.peny...@profitbricks.com>
+ * Milind Dumbare <milind.dumb...@gmail.com>
+ *
+ *
+ * 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 <rdma/ibtrs_srv.h>
+#include <rdma/ibtrs.h>
+#include <rdma/ibtrs_log.h>
+
+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 < m...@fholler.de>
+ * Jack Wang <jinpu.w...@profitbricks.com>
+ * Kleber Souza <kleber.so...@profitbricks.com>
+ * Danil Kipnis <danil.kip...@profitbricks.com>
+ * Roman Pen <roman.peny...@profitbricks.com>
+ * Milind Dumbare <milind.dumb...@gmail.com>
+ *
+ *
+ * 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 <linux/kobject.h>
+#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
--
2.7.4
