/* * Copyright (c) 2012 Intel Corporation. All rights reserved. * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. * Copyright (c) 2006 PathScale, Inc. 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/fs.h> #include <linux/fs_context.h> #include <linux/mount.h> #include <linux/pagemap.h> #include <linux/init.h> #include <linux/namei.h> #include "qib.h" #define QIBFS_MAGIC … static struct super_block *qib_super; #define private2dd(file) … static int qibfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, const struct file_operations *fops, void *data) { … } static int create_file(const char *name, umode_t mode, struct dentry *parent, struct dentry **dentry, const struct file_operations *fops, void *data) { … } static ssize_t driver_stats_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } /* * driver stats field names, one line per stat, single string. Used by * programs like ipathstats to print the stats in a way which works for * different versions of drivers, without changing program source. * if qlogic_ib_stats changes, this needs to change. Names need to be * 12 chars or less (w/o newline), for proper display by ipathstats utility. */ static const char qib_statnames[] = … ; static ssize_t driver_names_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } static const struct file_operations driver_ops[] = …; /* read the per-device counters */ static ssize_t dev_counters_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } /* read the per-device counters */ static ssize_t dev_names_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } static const struct file_operations cntr_ops[] = …; /* * Could use file_inode(file)->i_ino to figure out which file, * instead of separate routine for each, but for now, this works... */ /* read the per-port names (same for each port) */ static ssize_t portnames_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } /* read the per-port counters for port 1 (pidx 0) */ static ssize_t portcntrs_1_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } /* read the per-port counters for port 2 (pidx 1) */ static ssize_t portcntrs_2_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } static const struct file_operations portcntr_ops[] = …; /* * read the per-port QSFP data for port 1 (pidx 0) */ static ssize_t qsfp_1_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } /* * read the per-port QSFP data for port 2 (pidx 1) */ static ssize_t qsfp_2_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } static const struct file_operations qsfp_ops[] = …; static ssize_t flash_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } static ssize_t flash_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { … } static const struct file_operations flash_ops = …; static int add_cntr_files(struct super_block *sb, struct qib_devdata *dd) { … } static int remove_device_files(struct super_block *sb, struct qib_devdata *dd) { … } /* * This fills everything in when the fs is mounted, to handle umount/mount * after device init. The direct add_cntr_files() call handles adding * them from the init code, when the fs is already mounted. */ static int qibfs_fill_super(struct super_block *sb, struct fs_context *fc) { … } static int qibfs_get_tree(struct fs_context *fc) { … } static const struct fs_context_operations qibfs_context_ops = …; static int qibfs_init_fs_context(struct fs_context *fc) { … } static void qibfs_kill_super(struct super_block *s) { … } int qibfs_add(struct qib_devdata *dd) { … } int qibfs_remove(struct qib_devdata *dd) { … } static struct file_system_type qibfs_fs_type = …; MODULE_ALIAS_FS(…) …; int __init qib_init_qibfs(void) { … } int __exit qib_exit_qibfs(void) { … }
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