You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
289 lines
6.5 KiB
289 lines
6.5 KiB
#ifdef CONFIG_DEBUG_FS
|
|
/*
|
|
* Copyright (c) 2013 Intel Corporation. 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/debugfs.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/export.h>
|
|
|
|
#include "qib.h"
|
|
#include "qib_verbs.h"
|
|
#include "qib_debugfs.h"
|
|
|
|
static struct dentry *qib_dbg_root;
|
|
|
|
#define DEBUGFS_FILE(name) \
|
|
static const struct seq_operations _##name##_seq_ops = { \
|
|
.start = _##name##_seq_start, \
|
|
.next = _##name##_seq_next, \
|
|
.stop = _##name##_seq_stop, \
|
|
.show = _##name##_seq_show \
|
|
}; \
|
|
static int _##name##_open(struct inode *inode, struct file *s) \
|
|
{ \
|
|
struct seq_file *seq; \
|
|
int ret; \
|
|
ret = seq_open(s, &_##name##_seq_ops); \
|
|
if (ret) \
|
|
return ret; \
|
|
seq = s->private_data; \
|
|
seq->private = inode->i_private; \
|
|
return 0; \
|
|
} \
|
|
static const struct file_operations _##name##_file_ops = { \
|
|
.owner = THIS_MODULE, \
|
|
.open = _##name##_open, \
|
|
.read = seq_read, \
|
|
.llseek = seq_lseek, \
|
|
.release = seq_release \
|
|
};
|
|
|
|
#define DEBUGFS_FILE_CREATE(name) \
|
|
do { \
|
|
struct dentry *ent; \
|
|
ent = debugfs_create_file(#name , 0400, ibd->qib_ibdev_dbg, \
|
|
ibd, &_##name##_file_ops); \
|
|
if (!ent) \
|
|
pr_warn("create of " #name " failed\n"); \
|
|
} while (0)
|
|
|
|
static void *_opcode_stats_seq_start(struct seq_file *s, loff_t *pos)
|
|
{
|
|
struct qib_opcode_stats_perctx *opstats;
|
|
|
|
if (*pos >= ARRAY_SIZE(opstats->stats))
|
|
return NULL;
|
|
return pos;
|
|
}
|
|
|
|
static void *_opcode_stats_seq_next(struct seq_file *s, void *v, loff_t *pos)
|
|
{
|
|
struct qib_opcode_stats_perctx *opstats;
|
|
|
|
++*pos;
|
|
if (*pos >= ARRAY_SIZE(opstats->stats))
|
|
return NULL;
|
|
return pos;
|
|
}
|
|
|
|
|
|
static void _opcode_stats_seq_stop(struct seq_file *s, void *v)
|
|
{
|
|
/* nothing allocated */
|
|
}
|
|
|
|
static int _opcode_stats_seq_show(struct seq_file *s, void *v)
|
|
{
|
|
loff_t *spos = v;
|
|
loff_t i = *spos, j;
|
|
u64 n_packets = 0, n_bytes = 0;
|
|
struct qib_ibdev *ibd = (struct qib_ibdev *)s->private;
|
|
struct qib_devdata *dd = dd_from_dev(ibd);
|
|
|
|
for (j = 0; j < dd->first_user_ctxt; j++) {
|
|
if (!dd->rcd[j])
|
|
continue;
|
|
n_packets += dd->rcd[j]->opstats->stats[i].n_packets;
|
|
n_bytes += dd->rcd[j]->opstats->stats[i].n_bytes;
|
|
}
|
|
if (!n_packets && !n_bytes)
|
|
return SEQ_SKIP;
|
|
seq_printf(s, "%02llx %llu/%llu\n", i,
|
|
(unsigned long long) n_packets,
|
|
(unsigned long long) n_bytes);
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEBUGFS_FILE(opcode_stats)
|
|
|
|
static void *_ctx_stats_seq_start(struct seq_file *s, loff_t *pos)
|
|
{
|
|
struct qib_ibdev *ibd = (struct qib_ibdev *)s->private;
|
|
struct qib_devdata *dd = dd_from_dev(ibd);
|
|
|
|
if (!*pos)
|
|
return SEQ_START_TOKEN;
|
|
if (*pos >= dd->first_user_ctxt)
|
|
return NULL;
|
|
return pos;
|
|
}
|
|
|
|
static void *_ctx_stats_seq_next(struct seq_file *s, void *v, loff_t *pos)
|
|
{
|
|
struct qib_ibdev *ibd = (struct qib_ibdev *)s->private;
|
|
struct qib_devdata *dd = dd_from_dev(ibd);
|
|
|
|
if (v == SEQ_START_TOKEN)
|
|
return pos;
|
|
|
|
++*pos;
|
|
if (*pos >= dd->first_user_ctxt)
|
|
return NULL;
|
|
return pos;
|
|
}
|
|
|
|
static void _ctx_stats_seq_stop(struct seq_file *s, void *v)
|
|
{
|
|
/* nothing allocated */
|
|
}
|
|
|
|
static int _ctx_stats_seq_show(struct seq_file *s, void *v)
|
|
{
|
|
loff_t *spos;
|
|
loff_t i, j;
|
|
u64 n_packets = 0;
|
|
struct qib_ibdev *ibd = (struct qib_ibdev *)s->private;
|
|
struct qib_devdata *dd = dd_from_dev(ibd);
|
|
|
|
if (v == SEQ_START_TOKEN) {
|
|
seq_puts(s, "Ctx:npkts\n");
|
|
return 0;
|
|
}
|
|
|
|
spos = v;
|
|
i = *spos;
|
|
|
|
if (!dd->rcd[i])
|
|
return SEQ_SKIP;
|
|
|
|
for (j = 0; j < ARRAY_SIZE(dd->rcd[i]->opstats->stats); j++)
|
|
n_packets += dd->rcd[i]->opstats->stats[j].n_packets;
|
|
|
|
if (!n_packets)
|
|
return SEQ_SKIP;
|
|
|
|
seq_printf(s, " %llu:%llu\n", i, n_packets);
|
|
return 0;
|
|
}
|
|
|
|
DEBUGFS_FILE(ctx_stats)
|
|
|
|
static void *_qp_stats_seq_start(struct seq_file *s, loff_t *pos)
|
|
__acquires(RCU)
|
|
{
|
|
struct qib_qp_iter *iter;
|
|
loff_t n = *pos;
|
|
|
|
iter = qib_qp_iter_init(s->private);
|
|
|
|
/* stop calls rcu_read_unlock */
|
|
rcu_read_lock();
|
|
|
|
if (!iter)
|
|
return NULL;
|
|
|
|
do {
|
|
if (qib_qp_iter_next(iter)) {
|
|
kfree(iter);
|
|
return NULL;
|
|
}
|
|
} while (n--);
|
|
|
|
return iter;
|
|
}
|
|
|
|
static void *_qp_stats_seq_next(struct seq_file *s, void *iter_ptr,
|
|
loff_t *pos)
|
|
__must_hold(RCU)
|
|
{
|
|
struct qib_qp_iter *iter = iter_ptr;
|
|
|
|
(*pos)++;
|
|
|
|
if (qib_qp_iter_next(iter)) {
|
|
kfree(iter);
|
|
return NULL;
|
|
}
|
|
|
|
return iter;
|
|
}
|
|
|
|
static void _qp_stats_seq_stop(struct seq_file *s, void *iter_ptr)
|
|
__releases(RCU)
|
|
{
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
static int _qp_stats_seq_show(struct seq_file *s, void *iter_ptr)
|
|
{
|
|
struct qib_qp_iter *iter = iter_ptr;
|
|
|
|
if (!iter)
|
|
return 0;
|
|
|
|
qib_qp_iter_print(s, iter);
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEBUGFS_FILE(qp_stats)
|
|
|
|
void qib_dbg_ibdev_init(struct qib_ibdev *ibd)
|
|
{
|
|
char name[10];
|
|
|
|
snprintf(name, sizeof(name), "qib%d", dd_from_dev(ibd)->unit);
|
|
ibd->qib_ibdev_dbg = debugfs_create_dir(name, qib_dbg_root);
|
|
if (!ibd->qib_ibdev_dbg) {
|
|
pr_warn("create of %s failed\n", name);
|
|
return;
|
|
}
|
|
DEBUGFS_FILE_CREATE(opcode_stats);
|
|
DEBUGFS_FILE_CREATE(ctx_stats);
|
|
DEBUGFS_FILE_CREATE(qp_stats);
|
|
}
|
|
|
|
void qib_dbg_ibdev_exit(struct qib_ibdev *ibd)
|
|
{
|
|
if (!qib_dbg_root)
|
|
goto out;
|
|
debugfs_remove_recursive(ibd->qib_ibdev_dbg);
|
|
out:
|
|
ibd->qib_ibdev_dbg = NULL;
|
|
}
|
|
|
|
void qib_dbg_init(void)
|
|
{
|
|
qib_dbg_root = debugfs_create_dir(QIB_DRV_NAME, NULL);
|
|
if (!qib_dbg_root)
|
|
pr_warn("init of debugfs failed\n");
|
|
}
|
|
|
|
void qib_dbg_exit(void)
|
|
{
|
|
debugfs_remove_recursive(qib_dbg_root);
|
|
qib_dbg_root = NULL;
|
|
}
|
|
|
|
#endif
|
|
|
|
|