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@@ -0,0 +1,166 @@
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+#ifdef CONFIG_DEBUG_FS
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+/*
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+ * Copyright (c) 2013 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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+
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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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+
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+static struct dentry *qib_dbg_root;
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+
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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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+
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+#define DEBUGFS_FILE_CREATE(name) \
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+do { \
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+ struct dentry *ent; \
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+ ent = debugfs_create_file(#name , 0400, ibd->qib_ibdev_dbg, \
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+ ibd, &_##name##_file_ops); \
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+ if (!ent) \
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+ pr_warn("create of " #name " failed\n"); \
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+} while (0)
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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+ return 0;
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+}
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+
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+DEBUGFS_FILE(opcode_stats)
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+
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+void qib_dbg_ibdev_init(struct qib_ibdev *ibd)
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+{
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+ char name[10];
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+
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+ snprintf(name, sizeof(name), "qib%d", dd_from_dev(ibd)->unit);
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+ ibd->qib_ibdev_dbg = debugfs_create_dir(name, qib_dbg_root);
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+ if (!ibd->qib_ibdev_dbg) {
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+ pr_warn("create of %s failed\n", name);
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+ return;
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+ }
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+ DEBUGFS_FILE_CREATE(opcode_stats);
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+ return;
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+}
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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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+
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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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+ if (!qib_dbg_root)
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+ pr_warn("init of debugfs failed\n");
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+}
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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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+
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+#endif
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+
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Mike Marciniszyn