+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 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->u.generic_ip;
+
+ return 0;
+}
+
+static 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(struct net_device *dev)