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274 lines
6.3 KiB
274 lines
6.3 KiB
/* |
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* Copyright (c) 2013 - 2017 Intel Corporation. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#include <linux/debugfs.h> |
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#include <linux/seq_file.h> |
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#include <linux/kernel.h> |
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#include <linux/export.h> |
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#include "qib.h" |
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#include "qib_verbs.h" |
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#include "qib_debugfs.h" |
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static struct dentry *qib_dbg_root; |
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#define DEBUGFS_FILE(name) \ |
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static const struct seq_operations _##name##_seq_ops = { \ |
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.start = _##name##_seq_start, \ |
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.next = _##name##_seq_next, \ |
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.stop = _##name##_seq_stop, \ |
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.show = _##name##_seq_show \ |
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}; \ |
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static int _##name##_open(struct inode *inode, struct file *s) \ |
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{ \ |
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struct seq_file *seq; \ |
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int ret; \ |
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ret = seq_open(s, &_##name##_seq_ops); \ |
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if (ret) \ |
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return ret; \ |
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seq = s->private_data; \ |
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seq->private = inode->i_private; \ |
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return 0; \ |
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} \ |
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static const struct file_operations _##name##_file_ops = { \ |
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.owner = THIS_MODULE, \ |
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.open = _##name##_open, \ |
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.read = seq_read, \ |
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.llseek = seq_lseek, \ |
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.release = seq_release \ |
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}; |
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static void *_opcode_stats_seq_start(struct seq_file *s, loff_t *pos) |
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{ |
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struct qib_opcode_stats_perctx *opstats; |
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if (*pos >= ARRAY_SIZE(opstats->stats)) |
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return NULL; |
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return pos; |
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} |
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static void *_opcode_stats_seq_next(struct seq_file *s, void *v, loff_t *pos) |
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{ |
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struct qib_opcode_stats_perctx *opstats; |
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++*pos; |
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if (*pos >= ARRAY_SIZE(opstats->stats)) |
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return NULL; |
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return pos; |
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} |
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static void _opcode_stats_seq_stop(struct seq_file *s, void *v) |
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{ |
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/* nothing allocated */ |
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} |
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static int _opcode_stats_seq_show(struct seq_file *s, void *v) |
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{ |
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loff_t *spos = v; |
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loff_t i = *spos, j; |
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u64 n_packets = 0, n_bytes = 0; |
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struct qib_ibdev *ibd = (struct qib_ibdev *)s->private; |
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struct qib_devdata *dd = dd_from_dev(ibd); |
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for (j = 0; j < dd->first_user_ctxt; j++) { |
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if (!dd->rcd[j]) |
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continue; |
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n_packets += dd->rcd[j]->opstats->stats[i].n_packets; |
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n_bytes += dd->rcd[j]->opstats->stats[i].n_bytes; |
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} |
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if (!n_packets && !n_bytes) |
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return SEQ_SKIP; |
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seq_printf(s, "%02llx %llu/%llu\n", i, |
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(unsigned long long) n_packets, |
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(unsigned long long) n_bytes); |
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return 0; |
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} |
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DEBUGFS_FILE(opcode_stats) |
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static void *_ctx_stats_seq_start(struct seq_file *s, loff_t *pos) |
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{ |
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struct qib_ibdev *ibd = (struct qib_ibdev *)s->private; |
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struct qib_devdata *dd = dd_from_dev(ibd); |
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if (!*pos) |
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return SEQ_START_TOKEN; |
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if (*pos >= dd->first_user_ctxt) |
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return NULL; |
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return pos; |
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} |
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static void *_ctx_stats_seq_next(struct seq_file *s, void *v, loff_t *pos) |
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{ |
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struct qib_ibdev *ibd = (struct qib_ibdev *)s->private; |
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struct qib_devdata *dd = dd_from_dev(ibd); |
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if (v == SEQ_START_TOKEN) |
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return pos; |
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++*pos; |
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if (*pos >= dd->first_user_ctxt) |
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return NULL; |
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return pos; |
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} |
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static void _ctx_stats_seq_stop(struct seq_file *s, void *v) |
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{ |
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/* nothing allocated */ |
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} |
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static int _ctx_stats_seq_show(struct seq_file *s, void *v) |
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{ |
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loff_t *spos; |
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loff_t i, j; |
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u64 n_packets = 0; |
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struct qib_ibdev *ibd = (struct qib_ibdev *)s->private; |
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struct qib_devdata *dd = dd_from_dev(ibd); |
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if (v == SEQ_START_TOKEN) { |
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seq_puts(s, "Ctx:npkts\n"); |
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return 0; |
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} |
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spos = v; |
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i = *spos; |
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if (!dd->rcd[i]) |
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return SEQ_SKIP; |
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for (j = 0; j < ARRAY_SIZE(dd->rcd[i]->opstats->stats); j++) |
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n_packets += dd->rcd[i]->opstats->stats[j].n_packets; |
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if (!n_packets) |
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return SEQ_SKIP; |
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seq_printf(s, " %llu:%llu\n", i, n_packets); |
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return 0; |
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} |
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DEBUGFS_FILE(ctx_stats) |
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static void *_qp_stats_seq_start(struct seq_file *s, loff_t *pos) |
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__acquires(RCU) |
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{ |
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struct rvt_qp_iter *iter; |
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loff_t n = *pos; |
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iter = rvt_qp_iter_init(s->private, 0, NULL); |
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/* stop calls rcu_read_unlock */ |
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rcu_read_lock(); |
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if (!iter) |
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return NULL; |
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do { |
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if (rvt_qp_iter_next(iter)) { |
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kfree(iter); |
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return NULL; |
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} |
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} while (n--); |
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return iter; |
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} |
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static void *_qp_stats_seq_next(struct seq_file *s, void *iter_ptr, |
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loff_t *pos) |
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__must_hold(RCU) |
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{ |
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struct rvt_qp_iter *iter = iter_ptr; |
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(*pos)++; |
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if (rvt_qp_iter_next(iter)) { |
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kfree(iter); |
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return NULL; |
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} |
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return iter; |
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} |
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static void _qp_stats_seq_stop(struct seq_file *s, void *iter_ptr) |
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__releases(RCU) |
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{ |
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rcu_read_unlock(); |
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} |
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static int _qp_stats_seq_show(struct seq_file *s, void *iter_ptr) |
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{ |
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struct rvt_qp_iter *iter = iter_ptr; |
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if (!iter) |
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return 0; |
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qib_qp_iter_print(s, iter); |
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return 0; |
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} |
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DEBUGFS_FILE(qp_stats) |
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void qib_dbg_ibdev_init(struct qib_ibdev *ibd) |
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{ |
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struct dentry *root; |
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char name[10]; |
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snprintf(name, sizeof(name), "qib%d", dd_from_dev(ibd)->unit); |
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root = debugfs_create_dir(name, qib_dbg_root); |
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ibd->qib_ibdev_dbg = root; |
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debugfs_create_file("opcode_stats", 0400, root, ibd, |
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&_opcode_stats_file_ops); |
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debugfs_create_file("ctx_stats", 0400, root, ibd, &_ctx_stats_file_ops); |
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debugfs_create_file("qp_stats", 0400, root, ibd, &_qp_stats_file_ops); |
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} |
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void qib_dbg_ibdev_exit(struct qib_ibdev *ibd) |
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{ |
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if (!qib_dbg_root) |
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goto out; |
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debugfs_remove_recursive(ibd->qib_ibdev_dbg); |
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out: |
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ibd->qib_ibdev_dbg = NULL; |
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} |
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void qib_dbg_init(void) |
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{ |
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qib_dbg_root = debugfs_create_dir(QIB_DRV_NAME, NULL); |
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} |
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void qib_dbg_exit(void) |
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{ |
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debugfs_remove_recursive(qib_dbg_root); |
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qib_dbg_root = NULL; |
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}
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