--- /dev/null
+/*
+ * Copyright (c) 2004 Topspin Communications. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/err.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+
+struct file_operations;
+
+#include <linux/debugfs.h>
+#include <linux/export.h>
+
+#include "ipoib.h"
+
+static struct dentry *ipoib_root;
+
+static void format_gid(union ib_gid *gid, char *buf)
+{
+ int i, n;
+
+ for (n = 0, i = 0; i < 8; ++i) {
+ n += sprintf(buf + n, "%x",
+ be16_to_cpu(((__be16 *) gid->raw)[i]));
+ if (i < 7)
+ buf[n++] = ':';
+ }
+}
+
+static void *ipoib_mcg_seq_start(struct seq_file *file, loff_t *pos)
+{
+ struct ipoib_mcast_iter *iter;
+ loff_t n = *pos;
+
+ iter = ipoib_mcast_iter_init(file->private);
+ if (!iter)
+ return NULL;
+
+ while (n--) {
+ if (ipoib_mcast_iter_next(iter)) {
+ kfree(iter);
+ return NULL;
+ }
+ }
+
+ return iter;
+}
+
+static void *ipoib_mcg_seq_next(struct seq_file *file, void *iter_ptr,
+ loff_t *pos)
+{
+ struct ipoib_mcast_iter *iter = iter_ptr;
+
+ (*pos)++;
+
+ if (ipoib_mcast_iter_next(iter)) {
+ kfree(iter);
+ return NULL;
+ }
+
+ return iter;
+}
+
+static void ipoib_mcg_seq_stop(struct seq_file *file, void *iter_ptr)
+{
+ /* nothing for now */
+}
+
+static int ipoib_mcg_seq_show(struct seq_file *file, void *iter_ptr)
+{
+ struct ipoib_mcast_iter *iter = iter_ptr;
+ char gid_buf[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"];
+ union ib_gid mgid;
+ unsigned long created;
+ unsigned int queuelen, complete, send_only;
+
+ if (!iter)
+ return 0;
+
+ ipoib_mcast_iter_read(iter, &mgid, &created, &queuelen,
+ &complete, &send_only);
+
+ format_gid(&mgid, gid_buf);
+
+ seq_printf(file,
+ "GID: %s\n"
+ " created: %10ld\n"
+ " queuelen: %9d\n"
+ " complete: %9s\n"
+ " send_only: %8s\n"
+ "\n",
+ gid_buf, created, queuelen,
+ complete ? "yes" : "no",
+ send_only ? "yes" : "no");
+
+ return 0;
+}
+
+static const struct seq_operations ipoib_mcg_seq_ops = {
+ .start = ipoib_mcg_seq_start,
+ .next = ipoib_mcg_seq_next,
+ .stop = ipoib_mcg_seq_stop,
+ .show = ipoib_mcg_seq_show,
+};
+
+static int ipoib_mcg_open(struct inode *inode, struct file *file)
+{
+ struct seq_file *seq;
+ int ret;
+
+ ret = seq_open(file, &ipoib_mcg_seq_ops);
+ if (ret)
+ return ret;
+
+ seq = file->private_data;
+ seq->private = inode->i_private;
+
+ return 0;
+}
+
+static const struct file_operations ipoib_mcg_fops = {
+ .owner = THIS_MODULE,
+ .open = ipoib_mcg_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release
+};
+
+static void *ipoib_path_seq_start(struct seq_file *file, loff_t *pos)
+{
+ struct ipoib_path_iter *iter;
+ loff_t n = *pos;
+
+ iter = ipoib_path_iter_init(file->private);
+ if (!iter)
+ return NULL;
+
+ while (n--) {
+ if (ipoib_path_iter_next(iter)) {
+ kfree(iter);
+ return NULL;
+ }
+ }
+
+ return iter;
+}
+
+static void *ipoib_path_seq_next(struct seq_file *file, void *iter_ptr,
+ loff_t *pos)
+{
+ struct ipoib_path_iter *iter = iter_ptr;
+
+ (*pos)++;
+
+ if (ipoib_path_iter_next(iter)) {
+ kfree(iter);
+ return NULL;
+ }
+
+ return iter;
+}
+
+static void ipoib_path_seq_stop(struct seq_file *file, void *iter_ptr)
+{
+ /* nothing for now */
+}
+
+static int ipoib_path_seq_show(struct seq_file *file, void *iter_ptr)
+{
+ struct ipoib_path_iter *iter = iter_ptr;
+ char gid_buf[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"];
+ struct ipoib_path path;
+ int rate;
+
+ if (!iter)
+ return 0;
+
+ ipoib_path_iter_read(iter, &path);
+
+ format_gid(&path.pathrec.dgid, gid_buf);
+
+ seq_printf(file,
+ "GID: %s\n"
+ " complete: %6s\n",
+ gid_buf, path.pathrec.dlid ? "yes" : "no");
+
+ if (path.pathrec.dlid) {
+ rate = ib_rate_to_mbps(path.pathrec.rate);
+
+ seq_printf(file,
+ " DLID: 0x%04x\n"
+ " SL: %12d\n"
+ " rate: %8d.%d Gb/sec\n",
+ be16_to_cpu(path.pathrec.dlid),
+ path.pathrec.sl,
+ rate / 1000, rate % 1000);
+ }
+
+ seq_putc(file, '\n');
+
+ return 0;
+}
+
+static const struct seq_operations ipoib_path_seq_ops = {
+ .start = ipoib_path_seq_start,
+ .next = ipoib_path_seq_next,
+ .stop = ipoib_path_seq_stop,
+ .show = ipoib_path_seq_show,
+};
+
+static int ipoib_path_open(struct inode *inode, struct file *file)
+{
+ struct seq_file *seq;
+ int ret;
+
+ ret = seq_open(file, &ipoib_path_seq_ops);
+ if (ret)
+ return ret;
+
+ seq = file->private_data;
+ seq->private = inode->i_private;
+
+ return 0;
+}
+
+static const struct file_operations ipoib_path_fops = {
+ .owner = THIS_MODULE,
+ .open = ipoib_path_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release
+};
+
+void ipoib_create_debug_files(struct net_device *dev)
+{
+ struct ipoib_dev_priv *priv = netdev_priv(dev);
+ char name[IFNAMSIZ + sizeof "_path"];
+
+ snprintf(name, sizeof name, "%s_mcg", dev->name);
+ priv->mcg_dentry = debugfs_create_file(name, S_IFREG | S_IRUGO,
+ ipoib_root, dev, &ipoib_mcg_fops);
+ if (!priv->mcg_dentry)
+ ipoib_warn(priv, "failed to create mcg debug file\n");
+
+ snprintf(name, sizeof name, "%s_path", dev->name);
+ priv->path_dentry = debugfs_create_file(name, S_IFREG | S_IRUGO,
+ ipoib_root, dev, &ipoib_path_fops);
+ if (!priv->path_dentry)
+ ipoib_warn(priv, "failed to create path debug file\n");
+}
+
+void ipoib_delete_debug_files(struct net_device *dev)
+{
+ struct ipoib_dev_priv *priv = netdev_priv(dev);
+
+ debugfs_remove(priv->mcg_dentry);
+ debugfs_remove(priv->path_dentry);
+}
+
+int ipoib_register_debugfs(void)
+{
+ ipoib_root = debugfs_create_dir("ipoib", NULL);
+ return ipoib_root ? 0 : -ENOMEM;
+}
+
+void ipoib_unregister_debugfs(void)
+{
+ debugfs_remove(ipoib_root);
+}
Code Review / kvmfornfv.git / blobdiff