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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/infiniband/ulp/ipoib/ipoib_fs.c | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_fs.c')
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_fs.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_fs.c b/drivers/infiniband/ulp/ipoib/ipoib_fs.c new file mode 100644 index 000000000..12ba7a0fe --- /dev/null +++ b/drivers/infiniband/ulp/ipoib/ipoib_fs.c @@ -0,0 +1,251 @@ +/* + * 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_sops = { + .start = ipoib_mcg_seq_start, + .next = ipoib_mcg_seq_next, + .stop = ipoib_mcg_seq_stop, + .show = ipoib_mcg_seq_show, +}; + +DEFINE_SEQ_ATTRIBUTE(ipoib_mcg); + +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, sa_path_get_dlid(&path.pathrec) ? "yes" : "no"); + + if (sa_path_get_dlid(&path.pathrec)) { + rate = ib_rate_to_mbps(path.pathrec.rate); + + seq_printf(file, + " DLID: 0x%04x\n" + " SL: %12d\n" + " rate: %8d.%d Gb/sec\n", + be32_to_cpu(sa_path_get_dlid(&path.pathrec)), + path.pathrec.sl, + rate / 1000, rate % 1000); + } + + seq_putc(file, '\n'); + + return 0; +} + +static const struct seq_operations ipoib_path_sops = { + .start = ipoib_path_seq_start, + .next = ipoib_path_seq_next, + .stop = ipoib_path_seq_stop, + .show = ipoib_path_seq_show, +}; + +DEFINE_SEQ_ATTRIBUTE(ipoib_path); + +void ipoib_create_debug_files(struct net_device *dev) +{ + struct ipoib_dev_priv *priv = ipoib_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); + + 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); +} + +void ipoib_delete_debug_files(struct net_device *dev) +{ + struct ipoib_dev_priv *priv = ipoib_priv(dev); + + debugfs_remove(priv->mcg_dentry); + debugfs_remove(priv->path_dentry); + priv->mcg_dentry = priv->path_dentry = NULL; +} + +void ipoib_register_debugfs(void) +{ + ipoib_root = debugfs_create_dir("ipoib", NULL); +} + +void ipoib_unregister_debugfs(void) +{ + debugfs_remove(ipoib_root); +} |