/*- * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 * * 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 #include #include struct file_operations; #include #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_mult(path.pathrec.rate) * 25; seq_printf(file, " DLID: 0x%04x\n" " SL: %12d\n" " rate: %*d%s Gb/sec\n", be16_to_cpu(path.pathrec.dlid), path.pathrec.sl, 10 - ((rate % 10) ? 2 : 0), rate / 10, rate % 10 ? ".5" : ""); } 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(if_t dev) { struct ipoib_dev_priv *priv = dev->if_softc; char name[IFNAMSIZ + sizeof "_path"]; snprintf(name, sizeof name, "%s_mcg", if_name(dev)); 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", if_name(dev)); 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(if_t dev) { struct ipoib_dev_priv *priv = dev->if_softc; if (priv->mcg_dentry) debugfs_remove(priv->mcg_dentry); if (priv->path_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); }