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IB/ipath: sysfs and ipathfs support for core driver
The ipathfs filesystem contains files that are not appropriate for sysfs, because they contain binary data. The hierarchy is simple; the top-level directory contains driver-wide attribute files, while numbered subdirectories contain per-device attribute files. Our userspace code currently expects this filesystem to be mounted on /ipathfs, but a final location has not yet been chosen. Signed-off-by: Bryan O'Sullivan <bos@pathscale.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Bryan O'Sullivan
Roland Dreier
parent
108ecf0d90
commit
3e9b4a5eb4
605
drivers/infiniband/hw/ipath/ipath_fs.c
Normal file
605
drivers/infiniband/hw/ipath/ipath_fs.c
Normal file
@ -0,0 +1,605 @@
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/*
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* Copyright (c) 2006 PathScale, Inc. 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/version.h>
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/mount.h>
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#include <linux/pagemap.h>
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#include <linux/init.h>
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#include <linux/namei.h>
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#include <linux/pci.h>
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#include "ipath_kernel.h"
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#define IPATHFS_MAGIC 0x726a77
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static struct super_block *ipath_super;
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static int ipathfs_mknod(struct inode *dir, struct dentry *dentry,
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int mode, struct file_operations *fops,
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void *data)
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{
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int error;
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struct inode *inode = new_inode(dir->i_sb);
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if (!inode) {
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error = -EPERM;
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goto bail;
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}
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inode->i_mode = mode;
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inode->i_uid = 0;
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inode->i_gid = 0;
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inode->i_blksize = PAGE_CACHE_SIZE;
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inode->i_blocks = 0;
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inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
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inode->u.generic_ip = data;
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if ((mode & S_IFMT) == S_IFDIR) {
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inode->i_op = &simple_dir_inode_operations;
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inode->i_nlink++;
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dir->i_nlink++;
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}
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inode->i_fop = fops;
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d_instantiate(dentry, inode);
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error = 0;
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bail:
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return error;
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}
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static int create_file(const char *name, mode_t mode,
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struct dentry *parent, struct dentry **dentry,
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struct file_operations *fops, void *data)
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{
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int error;
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*dentry = NULL;
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mutex_lock(&parent->d_inode->i_mutex);
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*dentry = lookup_one_len(name, parent, strlen(name));
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if (!IS_ERR(dentry))
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error = ipathfs_mknod(parent->d_inode, *dentry,
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mode, fops, data);
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else
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error = PTR_ERR(dentry);
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mutex_unlock(&parent->d_inode->i_mutex);
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return error;
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}
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static ssize_t atomic_stats_read(struct file *file, char __user *buf,
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size_t count, loff_t *ppos)
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{
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return simple_read_from_buffer(buf, count, ppos, &ipath_stats,
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sizeof ipath_stats);
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}
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static struct file_operations atomic_stats_ops = {
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.read = atomic_stats_read,
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};
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#define NUM_COUNTERS sizeof(struct infinipath_counters) / sizeof(u64)
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static ssize_t atomic_counters_read(struct file *file, char __user *buf,
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size_t count, loff_t *ppos)
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{
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u64 counters[NUM_COUNTERS];
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u16 i;
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struct ipath_devdata *dd;
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dd = file->f_dentry->d_inode->u.generic_ip;
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for (i = 0; i < NUM_COUNTERS; i++)
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counters[i] = ipath_snap_cntr(dd, i);
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return simple_read_from_buffer(buf, count, ppos, counters,
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sizeof counters);
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}
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static struct file_operations atomic_counters_ops = {
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.read = atomic_counters_read,
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};
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static ssize_t atomic_node_info_read(struct file *file, char __user *buf,
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size_t count, loff_t *ppos)
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{
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u32 nodeinfo[10];
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struct ipath_devdata *dd;
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u64 guid;
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dd = file->f_dentry->d_inode->u.generic_ip;
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guid = be64_to_cpu(dd->ipath_guid);
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nodeinfo[0] = /* BaseVersion is SMA */
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/* ClassVersion is SMA */
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(1 << 8) /* NodeType */
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| (1 << 0); /* NumPorts */
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nodeinfo[1] = (u32) (guid >> 32);
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nodeinfo[2] = (u32) (guid & 0xffffffff);
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/* PortGUID == SystemImageGUID for us */
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nodeinfo[3] = nodeinfo[1];
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/* PortGUID == SystemImageGUID for us */
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nodeinfo[4] = nodeinfo[2];
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/* PortGUID == NodeGUID for us */
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nodeinfo[5] = nodeinfo[3];
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/* PortGUID == NodeGUID for us */
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nodeinfo[6] = nodeinfo[4];
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nodeinfo[7] = (4 << 16) /* we support 4 pkeys */
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| (dd->ipath_deviceid << 0);
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/* our chip version as 16 bits major, 16 bits minor */
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nodeinfo[8] = dd->ipath_minrev | (dd->ipath_majrev << 16);
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nodeinfo[9] = (dd->ipath_unit << 24) | (dd->ipath_vendorid << 0);
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return simple_read_from_buffer(buf, count, ppos, nodeinfo,
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sizeof nodeinfo);
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}
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static struct file_operations atomic_node_info_ops = {
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.read = atomic_node_info_read,
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};
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static ssize_t atomic_port_info_read(struct file *file, char __user *buf,
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size_t count, loff_t *ppos)
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{
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u32 portinfo[13];
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u32 tmp, tmp2;
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struct ipath_devdata *dd;
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dd = file->f_dentry->d_inode->u.generic_ip;
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/* so we only initialize non-zero fields. */
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memset(portinfo, 0, sizeof portinfo);
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/*
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* Notimpl yet M_Key (64)
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* Notimpl yet GID (64)
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*/
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portinfo[4] = (dd->ipath_lid << 16);
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/*
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* Notimpl yet SMLID (should we store this in the driver, in case
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* SMA dies?) CapabilityMask is 0, we don't support any of these
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* DiagCode is 0; we don't store any diag info for now Notimpl yet
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* M_KeyLeasePeriod (we don't support M_Key)
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*/
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/* LocalPortNum is whichever port number they ask for */
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portinfo[7] = (dd->ipath_unit << 24)
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/* LinkWidthEnabled */
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| (2 << 16)
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/* LinkWidthSupported (really 2, but not IB valid) */
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| (3 << 8)
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/* LinkWidthActive */
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| (2 << 0);
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tmp = dd->ipath_lastibcstat & IPATH_IBSTATE_MASK;
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tmp2 = 5;
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if (tmp == IPATH_IBSTATE_INIT)
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tmp = 2;
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else if (tmp == IPATH_IBSTATE_ARM)
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tmp = 3;
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else if (tmp == IPATH_IBSTATE_ACTIVE)
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tmp = 4;
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else {
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tmp = 0; /* down */
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tmp2 = tmp & 0xf;
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}
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portinfo[8] = (1 << 28) /* LinkSpeedSupported */
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| (tmp << 24) /* PortState */
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| (tmp2 << 20) /* PortPhysicalState */
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| (2 << 16)
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/* LinkDownDefaultState */
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/* M_KeyProtectBits == 0 */
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/* NotImpl yet LMC == 0 (we can support all values) */
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| (1 << 4) /* LinkSpeedActive */
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| (1 << 0); /* LinkSpeedEnabled */
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switch (dd->ipath_ibmtu) {
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case 4096:
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tmp = 5;
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break;
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case 2048:
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tmp = 4;
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break;
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case 1024:
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tmp = 3;
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break;
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case 512:
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tmp = 2;
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break;
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case 256:
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tmp = 1;
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break;
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default: /* oops, something is wrong */
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ipath_dbg("Problem, ipath_ibmtu 0x%x not a valid IB MTU, "
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"treat as 2048\n", dd->ipath_ibmtu);
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tmp = 4;
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break;
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}
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portinfo[9] = (tmp << 28)
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/* NeighborMTU */
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/* Notimpl MasterSMSL */
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| (1 << 20)
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/* VLCap */
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/* Notimpl InitType (actually, an SMA decision) */
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/* VLHighLimit is 0 (only one VL) */
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; /* VLArbitrationHighCap is 0 (only one VL) */
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portinfo[10] = /* VLArbitrationLowCap is 0 (only one VL) */
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/* InitTypeReply is SMA decision */
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(5 << 16) /* MTUCap 4096 */
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| (7 << 13) /* VLStallCount */
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| (0x1f << 8) /* HOQLife */
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| (1 << 4)
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/* OperationalVLs 0 */
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/* PartitionEnforcementInbound */
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/* PartitionEnforcementOutbound not enforced */
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/* FilterRawinbound not enforced */
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; /* FilterRawOutbound not enforced */
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/* M_KeyViolations are not counted by hardware, SMA can count */
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tmp = ipath_read_creg32(dd, dd->ipath_cregs->cr_errpkey);
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/* P_KeyViolations are counted by hardware. */
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portinfo[11] = ((tmp & 0xffff) << 0);
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portinfo[12] =
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/* Q_KeyViolations are not counted by hardware */
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(1 << 8)
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/* GUIDCap */
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/* SubnetTimeOut handled by SMA */
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/* RespTimeValue handled by SMA */
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;
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/* LocalPhyErrors are programmed to max */
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portinfo[12] |= (0xf << 20)
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| (0xf << 16) /* OverRunErrors are programmed to max */
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;
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return simple_read_from_buffer(buf, count, ppos, portinfo,
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sizeof portinfo);
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}
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static struct file_operations atomic_port_info_ops = {
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.read = atomic_port_info_read,
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};
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static ssize_t flash_read(struct file *file, char __user *buf,
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size_t count, loff_t *ppos)
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{
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struct ipath_devdata *dd;
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ssize_t ret;
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loff_t pos;
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char *tmp;
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pos = *ppos;
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if ( pos < 0) {
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ret = -EINVAL;
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goto bail;
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}
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if (pos >= sizeof(struct ipath_flash)) {
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ret = 0;
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goto bail;
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}
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if (count > sizeof(struct ipath_flash) - pos)
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count = sizeof(struct ipath_flash) - pos;
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tmp = kmalloc(count, GFP_KERNEL);
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if (!tmp) {
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ret = -ENOMEM;
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goto bail;
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}
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dd = file->f_dentry->d_inode->u.generic_ip;
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if (ipath_eeprom_read(dd, pos, tmp, count)) {
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ipath_dev_err(dd, "failed to read from flash\n");
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ret = -ENXIO;
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goto bail_tmp;
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}
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if (copy_to_user(buf, tmp, count)) {
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ret = -EFAULT;
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goto bail_tmp;
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}
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*ppos = pos + count;
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ret = count;
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bail_tmp:
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kfree(tmp);
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bail:
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return ret;
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}
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|
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static ssize_t flash_write(struct file *file, const char __user *buf,
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size_t count, loff_t *ppos)
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{
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struct ipath_devdata *dd;
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ssize_t ret;
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loff_t pos;
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char *tmp;
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pos = *ppos;
|
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|
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if ( pos < 0) {
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ret = -EINVAL;
|
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goto bail;
|
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}
|
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|
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if (pos >= sizeof(struct ipath_flash)) {
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ret = 0;
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goto bail;
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}
|
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|
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if (count > sizeof(struct ipath_flash) - pos)
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count = sizeof(struct ipath_flash) - pos;
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tmp = kmalloc(count, GFP_KERNEL);
|
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if (!tmp) {
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ret = -ENOMEM;
|
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goto bail;
|
||||
}
|
||||
|
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if (copy_from_user(tmp, buf, count)) {
|
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ret = -EFAULT;
|
||||
goto bail_tmp;
|
||||
}
|
||||
|
||||
dd = file->f_dentry->d_inode->u.generic_ip;
|
||||
if (ipath_eeprom_write(dd, pos, tmp, count)) {
|
||||
ret = -ENXIO;
|
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ipath_dev_err(dd, "failed to write to flash\n");
|
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goto bail_tmp;
|
||||
}
|
||||
|
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*ppos = pos + count;
|
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ret = count;
|
||||
|
||||
bail_tmp:
|
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kfree(tmp);
|
||||
|
||||
bail:
|
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return ret;
|
||||
}
|
||||
|
||||
static struct file_operations flash_ops = {
|
||||
.read = flash_read,
|
||||
.write = flash_write,
|
||||
};
|
||||
|
||||
static int create_device_files(struct super_block *sb,
|
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struct ipath_devdata *dd)
|
||||
{
|
||||
struct dentry *dir, *tmp;
|
||||
char unit[10];
|
||||
int ret;
|
||||
|
||||
snprintf(unit, sizeof unit, "%02d", dd->ipath_unit);
|
||||
ret = create_file(unit, S_IFDIR|S_IRUGO|S_IXUGO, sb->s_root, &dir,
|
||||
(struct file_operations *) &simple_dir_operations,
|
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dd);
|
||||
if (ret) {
|
||||
printk(KERN_ERR "create_file(%s) failed: %d\n", unit, ret);
|
||||
goto bail;
|
||||
}
|
||||
|
||||
ret = create_file("atomic_counters", S_IFREG|S_IRUGO, dir, &tmp,
|
||||
&atomic_counters_ops, dd);
|
||||
if (ret) {
|
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printk(KERN_ERR "create_file(%s/atomic_counters) "
|
||||
"failed: %d\n", unit, ret);
|
||||
goto bail;
|
||||
}
|
||||
|
||||
ret = create_file("node_info", S_IFREG|S_IRUGO, dir, &tmp,
|
||||
&atomic_node_info_ops, dd);
|
||||
if (ret) {
|
||||
printk(KERN_ERR "create_file(%s/node_info) "
|
||||
"failed: %d\n", unit, ret);
|
||||
goto bail;
|
||||
}
|
||||
|
||||
ret = create_file("port_info", S_IFREG|S_IRUGO, dir, &tmp,
|
||||
&atomic_port_info_ops, dd);
|
||||
if (ret) {
|
||||
printk(KERN_ERR "create_file(%s/port_info) "
|
||||
"failed: %d\n", unit, ret);
|
||||
goto bail;
|
||||
}
|
||||
|
||||
ret = create_file("flash", S_IFREG|S_IWUSR|S_IRUGO, dir, &tmp,
|
||||
&flash_ops, dd);
|
||||
if (ret) {
|
||||
printk(KERN_ERR "create_file(%s/flash) "
|
||||
"failed: %d\n", unit, ret);
|
||||
goto bail;
|
||||
}
|
||||
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void remove_file(struct dentry *parent, char *name)
|
||||
{
|
||||
struct dentry *tmp;
|
||||
|
||||
tmp = lookup_one_len(name, parent, strlen(name));
|
||||
|
||||
spin_lock(&dcache_lock);
|
||||
spin_lock(&tmp->d_lock);
|
||||
if (!(d_unhashed(tmp) && tmp->d_inode)) {
|
||||
dget_locked(tmp);
|
||||
__d_drop(tmp);
|
||||
spin_unlock(&tmp->d_lock);
|
||||
spin_unlock(&dcache_lock);
|
||||
simple_unlink(parent->d_inode, tmp);
|
||||
} else {
|
||||
spin_unlock(&tmp->d_lock);
|
||||
spin_unlock(&dcache_lock);
|
||||
}
|
||||
}
|
||||
|
||||
static int remove_device_files(struct super_block *sb,
|
||||
struct ipath_devdata *dd)
|
||||
{
|
||||
struct dentry *dir, *root;
|
||||
char unit[10];
|
||||
int ret;
|
||||
|
||||
root = dget(sb->s_root);
|
||||
mutex_lock(&root->d_inode->i_mutex);
|
||||
snprintf(unit, sizeof unit, "%02d", dd->ipath_unit);
|
||||
dir = lookup_one_len(unit, root, strlen(unit));
|
||||
|
||||
if (IS_ERR(dir)) {
|
||||
ret = PTR_ERR(dir);
|
||||
printk(KERN_ERR "Lookup of %s failed\n", unit);
|
||||
goto bail;
|
||||
}
|
||||
|
||||
remove_file(dir, "flash");
|
||||
remove_file(dir, "port_info");
|
||||
remove_file(dir, "node_info");
|
||||
remove_file(dir, "atomic_counters");
|
||||
d_delete(dir);
|
||||
ret = simple_rmdir(root->d_inode, dir);
|
||||
|
||||
bail:
|
||||
mutex_unlock(&root->d_inode->i_mutex);
|
||||
dput(root);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ipathfs_fill_super(struct super_block *sb, void *data,
|
||||
int silent)
|
||||
{
|
||||
struct ipath_devdata *dd, *tmp;
|
||||
unsigned long flags;
|
||||
int ret;
|
||||
|
||||
static struct tree_descr files[] = {
|
||||
[1] = {"atomic_stats", &atomic_stats_ops, S_IRUGO},
|
||||
{""},
|
||||
};
|
||||
|
||||
ret = simple_fill_super(sb, IPATHFS_MAGIC, files);
|
||||
if (ret) {
|
||||
printk(KERN_ERR "simple_fill_super failed: %d\n", ret);
|
||||
goto bail;
|
||||
}
|
||||
|
||||
spin_lock_irqsave(&ipath_devs_lock, flags);
|
||||
|
||||
list_for_each_entry_safe(dd, tmp, &ipath_dev_list, ipath_list) {
|
||||
spin_unlock_irqrestore(&ipath_devs_lock, flags);
|
||||
ret = create_device_files(sb, dd);
|
||||
if (ret) {
|
||||
deactivate_super(sb);
|
||||
goto bail;
|
||||
}
|
||||
spin_lock_irqsave(&ipath_devs_lock, flags);
|
||||
}
|
||||
|
||||
spin_unlock_irqrestore(&ipath_devs_lock, flags);
|
||||
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct super_block *ipathfs_get_sb(struct file_system_type *fs_type,
|
||||
int flags, const char *dev_name,
|
||||
void *data)
|
||||
{
|
||||
ipath_super = get_sb_single(fs_type, flags, data,
|
||||
ipathfs_fill_super);
|
||||
return ipath_super;
|
||||
}
|
||||
|
||||
static void ipathfs_kill_super(struct super_block *s)
|
||||
{
|
||||
kill_litter_super(s);
|
||||
ipath_super = NULL;
|
||||
}
|
||||
|
||||
int ipathfs_add_device(struct ipath_devdata *dd)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (ipath_super == NULL) {
|
||||
ret = 0;
|
||||
goto bail;
|
||||
}
|
||||
|
||||
ret = create_device_files(ipath_super, dd);
|
||||
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ipathfs_remove_device(struct ipath_devdata *dd)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (ipath_super == NULL) {
|
||||
ret = 0;
|
||||
goto bail;
|
||||
}
|
||||
|
||||
ret = remove_device_files(ipath_super, dd);
|
||||
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct file_system_type ipathfs_fs_type = {
|
||||
.owner = THIS_MODULE,
|
||||
.name = "ipathfs",
|
||||
.get_sb = ipathfs_get_sb,
|
||||
.kill_sb = ipathfs_kill_super,
|
||||
};
|
||||
|
||||
int __init ipath_init_ipathfs(void)
|
||||
{
|
||||
return register_filesystem(&ipathfs_fs_type);
|
||||
}
|
||||
|
||||
void __exit ipath_exit_ipathfs(void)
|
||||
{
|
||||
unregister_filesystem(&ipathfs_fs_type);
|
||||
}
|
||||
778
drivers/infiniband/hw/ipath/ipath_sysfs.c
Normal file
778
drivers/infiniband/hw/ipath/ipath_sysfs.c
Normal file
@ -0,0 +1,778 @@
|
||||
/*
|
||||
* 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/ctype.h>
|
||||
#include <linux/pci.h>
|
||||
|
||||
#include "ipath_kernel.h"
|
||||
#include "ips_common.h"
|
||||
#include "ipath_layer.h"
|
||||
|
||||
/**
|
||||
* ipath_parse_ushort - parse an unsigned short value in an arbitrary base
|
||||
* @str: the string containing the number
|
||||
* @valp: where to put the result
|
||||
*
|
||||
* returns the number of bytes consumed, or negative value on error
|
||||
*/
|
||||
int ipath_parse_ushort(const char *str, unsigned short *valp)
|
||||
{
|
||||
unsigned long val;
|
||||
char *end;
|
||||
int ret;
|
||||
|
||||
if (!isdigit(str[0])) {
|
||||
ret = -EINVAL;
|
||||
goto bail;
|
||||
}
|
||||
|
||||
val = simple_strtoul(str, &end, 0);
|
||||
|
||||
if (val > 0xffff) {
|
||||
ret = -EINVAL;
|
||||
goto bail;
|
||||
}
|
||||
|
||||
*valp = val;
|
||||
|
||||
ret = end + 1 - str;
|
||||
if (ret == 0)
|
||||
ret = -EINVAL;
|
||||
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t show_version(struct device_driver *dev, char *buf)
|
||||
{
|
||||
/* The string printed here is already newline-terminated. */
|
||||
return scnprintf(buf, PAGE_SIZE, "%s", ipath_core_version);
|
||||
}
|
||||
|
||||
static ssize_t show_num_units(struct device_driver *dev, char *buf)
|
||||
{
|
||||
return scnprintf(buf, PAGE_SIZE, "%d\n",
|
||||
ipath_count_units(NULL, NULL, NULL));
|
||||
}
|
||||
|
||||
#define DRIVER_STAT(name, attr) \
|
||||
static ssize_t show_stat_##name(struct device_driver *dev, \
|
||||
char *buf) \
|
||||
{ \
|
||||
return scnprintf( \
|
||||
buf, PAGE_SIZE, "%llu\n", \
|
||||
(unsigned long long) ipath_stats.sps_ ##attr); \
|
||||
} \
|
||||
static DRIVER_ATTR(name, S_IRUGO, show_stat_##name, NULL)
|
||||
|
||||
DRIVER_STAT(intrs, ints);
|
||||
DRIVER_STAT(err_intrs, errints);
|
||||
DRIVER_STAT(errs, errs);
|
||||
DRIVER_STAT(pkt_errs, pkterrs);
|
||||
DRIVER_STAT(crc_errs, crcerrs);
|
||||
DRIVER_STAT(hw_errs, hwerrs);
|
||||
DRIVER_STAT(ib_link, iblink);
|
||||
DRIVER_STAT(port0_pkts, port0pkts);
|
||||
DRIVER_STAT(ether_spkts, ether_spkts);
|
||||
DRIVER_STAT(ether_rpkts, ether_rpkts);
|
||||
DRIVER_STAT(sma_spkts, sma_spkts);
|
||||
DRIVER_STAT(sma_rpkts, sma_rpkts);
|
||||
DRIVER_STAT(hdrq_full, hdrqfull);
|
||||
DRIVER_STAT(etid_full, etidfull);
|
||||
DRIVER_STAT(no_piobufs, nopiobufs);
|
||||
DRIVER_STAT(ports, ports);
|
||||
DRIVER_STAT(pkey0, pkeys[0]);
|
||||
DRIVER_STAT(pkey1, pkeys[1]);
|
||||
DRIVER_STAT(pkey2, pkeys[2]);
|
||||
DRIVER_STAT(pkey3, pkeys[3]);
|
||||
/* XXX fix the following when dynamic table of devices used */
|
||||
DRIVER_STAT(lid0, lid[0]);
|
||||
DRIVER_STAT(lid1, lid[1]);
|
||||
DRIVER_STAT(lid2, lid[2]);
|
||||
DRIVER_STAT(lid3, lid[3]);
|
||||
|
||||
DRIVER_STAT(nports, nports);
|
||||
DRIVER_STAT(null_intr, nullintr);
|
||||
DRIVER_STAT(max_pkts_call, maxpkts_call);
|
||||
DRIVER_STAT(avg_pkts_call, avgpkts_call);
|
||||
DRIVER_STAT(page_locks, pagelocks);
|
||||
DRIVER_STAT(page_unlocks, pageunlocks);
|
||||
DRIVER_STAT(krdrops, krdrops);
|
||||
/* XXX fix the following when dynamic table of devices used */
|
||||
DRIVER_STAT(mlid0, mlid[0]);
|
||||
DRIVER_STAT(mlid1, mlid[1]);
|
||||
DRIVER_STAT(mlid2, mlid[2]);
|
||||
DRIVER_STAT(mlid3, mlid[3]);
|
||||
|
||||
static struct attribute *driver_stat_attributes[] = {
|
||||
&driver_attr_intrs.attr,
|
||||
&driver_attr_err_intrs.attr,
|
||||
&driver_attr_errs.attr,
|
||||
&driver_attr_pkt_errs.attr,
|
||||
&driver_attr_crc_errs.attr,
|
||||
&driver_attr_hw_errs.attr,
|
||||
&driver_attr_ib_link.attr,
|
||||
&driver_attr_port0_pkts.attr,
|
||||
&driver_attr_ether_spkts.attr,
|
||||
&driver_attr_ether_rpkts.attr,
|
||||
&driver_attr_sma_spkts.attr,
|
||||
&driver_attr_sma_rpkts.attr,
|
||||
&driver_attr_hdrq_full.attr,
|
||||
&driver_attr_etid_full.attr,
|
||||
&driver_attr_no_piobufs.attr,
|
||||
&driver_attr_ports.attr,
|
||||
&driver_attr_pkey0.attr,
|
||||
&driver_attr_pkey1.attr,
|
||||
&driver_attr_pkey2.attr,
|
||||
&driver_attr_pkey3.attr,
|
||||
&driver_attr_lid0.attr,
|
||||
&driver_attr_lid1.attr,
|
||||
&driver_attr_lid2.attr,
|
||||
&driver_attr_lid3.attr,
|
||||
&driver_attr_nports.attr,
|
||||
&driver_attr_null_intr.attr,
|
||||
&driver_attr_max_pkts_call.attr,
|
||||
&driver_attr_avg_pkts_call.attr,
|
||||
&driver_attr_page_locks.attr,
|
||||
&driver_attr_page_unlocks.attr,
|
||||
&driver_attr_krdrops.attr,
|
||||
&driver_attr_mlid0.attr,
|
||||
&driver_attr_mlid1.attr,
|
||||
&driver_attr_mlid2.attr,
|
||||
&driver_attr_mlid3.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct attribute_group driver_stat_attr_group = {
|
||||
.name = "stats",
|
||||
.attrs = driver_stat_attributes
|
||||
};
|
||||
|
||||
static ssize_t show_status(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
ssize_t ret;
|
||||
|
||||
if (!dd->ipath_statusp) {
|
||||
ret = -EINVAL;
|
||||
goto bail;
|
||||
}
|
||||
|
||||
ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n",
|
||||
(unsigned long long) *(dd->ipath_statusp));
|
||||
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const char *ipath_status_str[] = {
|
||||
"Initted",
|
||||
"Disabled",
|
||||
"Admin_Disabled",
|
||||
"OIB_SMA",
|
||||
"SMA",
|
||||
"Present",
|
||||
"IB_link_up",
|
||||
"IB_configured",
|
||||
"NoIBcable",
|
||||
"Fatal_Hardware_Error",
|
||||
NULL,
|
||||
};
|
||||
|
||||
static ssize_t show_status_str(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
int i, any;
|
||||
u64 s;
|
||||
ssize_t ret;
|
||||
|
||||
if (!dd->ipath_statusp) {
|
||||
ret = -EINVAL;
|
||||
goto bail;
|
||||
}
|
||||
|
||||
s = *(dd->ipath_statusp);
|
||||
*buf = '\0';
|
||||
for (any = i = 0; s && ipath_status_str[i]; i++) {
|
||||
if (s & 1) {
|
||||
if (any && strlcat(buf, " ", PAGE_SIZE) >=
|
||||
PAGE_SIZE)
|
||||
/* overflow */
|
||||
break;
|
||||
if (strlcat(buf, ipath_status_str[i],
|
||||
PAGE_SIZE) >= PAGE_SIZE)
|
||||
break;
|
||||
any = 1;
|
||||
}
|
||||
s >>= 1;
|
||||
}
|
||||
if (any)
|
||||
strlcat(buf, "\n", PAGE_SIZE);
|
||||
|
||||
ret = strlen(buf);
|
||||
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t show_boardversion(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
/* The string printed here is already newline-terminated. */
|
||||
return scnprintf(buf, PAGE_SIZE, "%s", dd->ipath_boardversion);
|
||||
}
|
||||
|
||||
static ssize_t show_lid(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
|
||||
return scnprintf(buf, PAGE_SIZE, "0x%x\n", dd->ipath_lid);
|
||||
}
|
||||
|
||||
static ssize_t store_lid(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf,
|
||||
size_t count)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
u16 lid;
|
||||
int ret;
|
||||
|
||||
ret = ipath_parse_ushort(buf, &lid);
|
||||
if (ret < 0)
|
||||
goto invalid;
|
||||
|
||||
if (lid == 0 || lid >= 0xc000) {
|
||||
ret = -EINVAL;
|
||||
goto invalid;
|
||||
}
|
||||
|
||||
ipath_set_sps_lid(dd, lid, 0);
|
||||
|
||||
goto bail;
|
||||
invalid:
|
||||
ipath_dev_err(dd, "attempt to set invalid LID\n");
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t show_mlid(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
|
||||
return scnprintf(buf, PAGE_SIZE, "0x%x\n", dd->ipath_mlid);
|
||||
}
|
||||
|
||||
static ssize_t store_mlid(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf,
|
||||
size_t count)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
int unit;
|
||||
u16 mlid;
|
||||
int ret;
|
||||
|
||||
ret = ipath_parse_ushort(buf, &mlid);
|
||||
if (ret < 0)
|
||||
goto invalid;
|
||||
|
||||
unit = dd->ipath_unit;
|
||||
|
||||
dd->ipath_mlid = mlid;
|
||||
ipath_stats.sps_mlid[unit] = mlid;
|
||||
ipath_layer_intr(dd, IPATH_LAYER_INT_BCAST);
|
||||
|
||||
goto bail;
|
||||
invalid:
|
||||
ipath_dev_err(dd, "attempt to set invalid MLID\n");
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t show_guid(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
u8 *guid;
|
||||
|
||||
guid = (u8 *) & (dd->ipath_guid);
|
||||
|
||||
return scnprintf(buf, PAGE_SIZE,
|
||||
"%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
|
||||
guid[0], guid[1], guid[2], guid[3],
|
||||
guid[4], guid[5], guid[6], guid[7]);
|
||||
}
|
||||
|
||||
static ssize_t store_guid(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf,
|
||||
size_t count)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
ssize_t ret;
|
||||
unsigned short guid[8];
|
||||
__be64 nguid;
|
||||
u8 *ng;
|
||||
int i;
|
||||
|
||||
if (sscanf(buf, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx",
|
||||
&guid[0], &guid[1], &guid[2], &guid[3],
|
||||
&guid[4], &guid[5], &guid[6], &guid[7]) != 8)
|
||||
goto invalid;
|
||||
|
||||
ng = (u8 *) &nguid;
|
||||
|
||||
for (i = 0; i < 8; i++) {
|
||||
if (guid[i] > 0xff)
|
||||
goto invalid;
|
||||
ng[i] = guid[i];
|
||||
}
|
||||
|
||||
dd->ipath_guid = nguid;
|
||||
dd->ipath_nguid = 1;
|
||||
|
||||
ret = strlen(buf);
|
||||
goto bail;
|
||||
|
||||
invalid:
|
||||
ipath_dev_err(dd, "attempt to set invalid GUID\n");
|
||||
ret = -EINVAL;
|
||||
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t show_nguid(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
|
||||
return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_nguid);
|
||||
}
|
||||
|
||||
static ssize_t show_serial(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
|
||||
buf[sizeof dd->ipath_serial] = '\0';
|
||||
memcpy(buf, dd->ipath_serial, sizeof dd->ipath_serial);
|
||||
strcat(buf, "\n");
|
||||
return strlen(buf);
|
||||
}
|
||||
|
||||
static ssize_t show_unit(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
|
||||
return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_unit);
|
||||
}
|
||||
|
||||
#define DEVICE_COUNTER(name, attr) \
|
||||
static ssize_t show_counter_##name(struct device *dev, \
|
||||
struct device_attribute *attr, \
|
||||
char *buf) \
|
||||
{ \
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev); \
|
||||
return scnprintf(\
|
||||
buf, PAGE_SIZE, "%llu\n", (unsigned long long) \
|
||||
ipath_snap_cntr( \
|
||||
dd, offsetof(struct infinipath_counters, \
|
||||
attr) / sizeof(u64))); \
|
||||
} \
|
||||
static DEVICE_ATTR(name, S_IRUGO, show_counter_##name, NULL);
|
||||
|
||||
DEVICE_COUNTER(ib_link_downeds, IBLinkDownedCnt);
|
||||
DEVICE_COUNTER(ib_link_err_recoveries, IBLinkErrRecoveryCnt);
|
||||
DEVICE_COUNTER(ib_status_changes, IBStatusChangeCnt);
|
||||
DEVICE_COUNTER(ib_symbol_errs, IBSymbolErrCnt);
|
||||
DEVICE_COUNTER(lb_flow_stalls, LBFlowStallCnt);
|
||||
DEVICE_COUNTER(lb_ints, LBIntCnt);
|
||||
DEVICE_COUNTER(rx_bad_formats, RxBadFormatCnt);
|
||||
DEVICE_COUNTER(rx_buf_ovfls, RxBufOvflCnt);
|
||||
DEVICE_COUNTER(rx_data_pkts, RxDataPktCnt);
|
||||
DEVICE_COUNTER(rx_dropped_pkts, RxDroppedPktCnt);
|
||||
DEVICE_COUNTER(rx_dwords, RxDwordCnt);
|
||||
DEVICE_COUNTER(rx_ebps, RxEBPCnt);
|
||||
DEVICE_COUNTER(rx_flow_ctrl_errs, RxFlowCtrlErrCnt);
|
||||
DEVICE_COUNTER(rx_flow_pkts, RxFlowPktCnt);
|
||||
DEVICE_COUNTER(rx_icrc_errs, RxICRCErrCnt);
|
||||
DEVICE_COUNTER(rx_len_errs, RxLenErrCnt);
|
||||
DEVICE_COUNTER(rx_link_problems, RxLinkProblemCnt);
|
||||
DEVICE_COUNTER(rx_lpcrc_errs, RxLPCRCErrCnt);
|
||||
DEVICE_COUNTER(rx_max_min_len_errs, RxMaxMinLenErrCnt);
|
||||
DEVICE_COUNTER(rx_p0_hdr_egr_ovfls, RxP0HdrEgrOvflCnt);
|
||||
DEVICE_COUNTER(rx_p1_hdr_egr_ovfls, RxP1HdrEgrOvflCnt);
|
||||
DEVICE_COUNTER(rx_p2_hdr_egr_ovfls, RxP2HdrEgrOvflCnt);
|
||||
DEVICE_COUNTER(rx_p3_hdr_egr_ovfls, RxP3HdrEgrOvflCnt);
|
||||
DEVICE_COUNTER(rx_p4_hdr_egr_ovfls, RxP4HdrEgrOvflCnt);
|
||||
DEVICE_COUNTER(rx_p5_hdr_egr_ovfls, RxP5HdrEgrOvflCnt);
|
||||
DEVICE_COUNTER(rx_p6_hdr_egr_ovfls, RxP6HdrEgrOvflCnt);
|
||||
DEVICE_COUNTER(rx_p7_hdr_egr_ovfls, RxP7HdrEgrOvflCnt);
|
||||
DEVICE_COUNTER(rx_p8_hdr_egr_ovfls, RxP8HdrEgrOvflCnt);
|
||||
DEVICE_COUNTER(rx_pkey_mismatches, RxPKeyMismatchCnt);
|
||||
DEVICE_COUNTER(rx_tid_full_errs, RxTIDFullErrCnt);
|
||||
DEVICE_COUNTER(rx_tid_valid_errs, RxTIDValidErrCnt);
|
||||
DEVICE_COUNTER(rx_vcrc_errs, RxVCRCErrCnt);
|
||||
DEVICE_COUNTER(tx_data_pkts, TxDataPktCnt);
|
||||
DEVICE_COUNTER(tx_dropped_pkts, TxDroppedPktCnt);
|
||||
DEVICE_COUNTER(tx_dwords, TxDwordCnt);
|
||||
DEVICE_COUNTER(tx_flow_pkts, TxFlowPktCnt);
|
||||
DEVICE_COUNTER(tx_flow_stalls, TxFlowStallCnt);
|
||||
DEVICE_COUNTER(tx_len_errs, TxLenErrCnt);
|
||||
DEVICE_COUNTER(tx_max_min_len_errs, TxMaxMinLenErrCnt);
|
||||
DEVICE_COUNTER(tx_underruns, TxUnderrunCnt);
|
||||
DEVICE_COUNTER(tx_unsup_vl_errs, TxUnsupVLErrCnt);
|
||||
|
||||
static struct attribute *dev_counter_attributes[] = {
|
||||
&dev_attr_ib_link_downeds.attr,
|
||||
&dev_attr_ib_link_err_recoveries.attr,
|
||||
&dev_attr_ib_status_changes.attr,
|
||||
&dev_attr_ib_symbol_errs.attr,
|
||||
&dev_attr_lb_flow_stalls.attr,
|
||||
&dev_attr_lb_ints.attr,
|
||||
&dev_attr_rx_bad_formats.attr,
|
||||
&dev_attr_rx_buf_ovfls.attr,
|
||||
&dev_attr_rx_data_pkts.attr,
|
||||
&dev_attr_rx_dropped_pkts.attr,
|
||||
&dev_attr_rx_dwords.attr,
|
||||
&dev_attr_rx_ebps.attr,
|
||||
&dev_attr_rx_flow_ctrl_errs.attr,
|
||||
&dev_attr_rx_flow_pkts.attr,
|
||||
&dev_attr_rx_icrc_errs.attr,
|
||||
&dev_attr_rx_len_errs.attr,
|
||||
&dev_attr_rx_link_problems.attr,
|
||||
&dev_attr_rx_lpcrc_errs.attr,
|
||||
&dev_attr_rx_max_min_len_errs.attr,
|
||||
&dev_attr_rx_p0_hdr_egr_ovfls.attr,
|
||||
&dev_attr_rx_p1_hdr_egr_ovfls.attr,
|
||||
&dev_attr_rx_p2_hdr_egr_ovfls.attr,
|
||||
&dev_attr_rx_p3_hdr_egr_ovfls.attr,
|
||||
&dev_attr_rx_p4_hdr_egr_ovfls.attr,
|
||||
&dev_attr_rx_p5_hdr_egr_ovfls.attr,
|
||||
&dev_attr_rx_p6_hdr_egr_ovfls.attr,
|
||||
&dev_attr_rx_p7_hdr_egr_ovfls.attr,
|
||||
&dev_attr_rx_p8_hdr_egr_ovfls.attr,
|
||||
&dev_attr_rx_pkey_mismatches.attr,
|
||||
&dev_attr_rx_tid_full_errs.attr,
|
||||
&dev_attr_rx_tid_valid_errs.attr,
|
||||
&dev_attr_rx_vcrc_errs.attr,
|
||||
&dev_attr_tx_data_pkts.attr,
|
||||
&dev_attr_tx_dropped_pkts.attr,
|
||||
&dev_attr_tx_dwords.attr,
|
||||
&dev_attr_tx_flow_pkts.attr,
|
||||
&dev_attr_tx_flow_stalls.attr,
|
||||
&dev_attr_tx_len_errs.attr,
|
||||
&dev_attr_tx_max_min_len_errs.attr,
|
||||
&dev_attr_tx_underruns.attr,
|
||||
&dev_attr_tx_unsup_vl_errs.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct attribute_group dev_counter_attr_group = {
|
||||
.name = "counters",
|
||||
.attrs = dev_counter_attributes
|
||||
};
|
||||
|
||||
static ssize_t store_reset(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf,
|
||||
size_t count)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
int ret;
|
||||
|
||||
if (count < 5 || memcmp(buf, "reset", 5)) {
|
||||
ret = -EINVAL;
|
||||
goto bail;
|
||||
}
|
||||
|
||||
if (dd->ipath_flags & IPATH_DISABLED) {
|
||||
/*
|
||||
* post-reset init would re-enable interrupts, etc.
|
||||
* so don't allow reset on disabled devices. Not
|
||||
* perfect error, but about the best choice.
|
||||
*/
|
||||
dev_info(dev,"Unit %d is disabled, can't reset\n",
|
||||
dd->ipath_unit);
|
||||
ret = -EINVAL;
|
||||
}
|
||||
ret = ipath_reset_device(dd->ipath_unit);
|
||||
bail:
|
||||
return ret<0 ? ret : count;
|
||||
}
|
||||
|
||||
static ssize_t store_link_state(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf,
|
||||
size_t count)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
int ret, r;
|
||||
u16 state;
|
||||
|
||||
ret = ipath_parse_ushort(buf, &state);
|
||||
if (ret < 0)
|
||||
goto invalid;
|
||||
|
||||
r = ipath_layer_set_linkstate(dd, state);
|
||||
if (r < 0) {
|
||||
ret = r;
|
||||
goto bail;
|
||||
}
|
||||
|
||||
goto bail;
|
||||
invalid:
|
||||
ipath_dev_err(dd, "attempt to set invalid link state\n");
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t show_mtu(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_ibmtu);
|
||||
}
|
||||
|
||||
static ssize_t store_mtu(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf,
|
||||
size_t count)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
ssize_t ret;
|
||||
u16 mtu = 0;
|
||||
int r;
|
||||
|
||||
ret = ipath_parse_ushort(buf, &mtu);
|
||||
if (ret < 0)
|
||||
goto invalid;
|
||||
|
||||
r = ipath_layer_set_mtu(dd, mtu);
|
||||
if (r < 0)
|
||||
ret = r;
|
||||
|
||||
goto bail;
|
||||
invalid:
|
||||
ipath_dev_err(dd, "attempt to set invalid MTU\n");
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t show_enabled(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
return scnprintf(buf, PAGE_SIZE, "%u\n",
|
||||
(dd->ipath_flags & IPATH_DISABLED) ? 0 : 1);
|
||||
}
|
||||
|
||||
static ssize_t store_enabled(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf,
|
||||
size_t count)
|
||||
{
|
||||
struct ipath_devdata *dd = dev_get_drvdata(dev);
|
||||
ssize_t ret;
|
||||
u16 enable = 0;
|
||||
|
||||
ret = ipath_parse_ushort(buf, &enable);
|
||||
if (ret < 0) {
|
||||
ipath_dev_err(dd, "attempt to use non-numeric on enable\n");
|
||||
goto bail;
|
||||
}
|
||||
|
||||
if (enable) {
|
||||
if (!(dd->ipath_flags & IPATH_DISABLED))
|
||||
goto bail;
|
||||
|
||||
dev_info(dev, "Enabling unit %d\n", dd->ipath_unit);
|
||||
/* same as post-reset */
|
||||
ret = ipath_init_chip(dd, 1);
|
||||
if (ret)
|
||||
ipath_dev_err(dd, "Failed to enable unit %d\n",
|
||||
dd->ipath_unit);
|
||||
else {
|
||||
dd->ipath_flags &= ~IPATH_DISABLED;
|
||||
*dd->ipath_statusp &= ~IPATH_STATUS_ADMIN_DISABLED;
|
||||
}
|
||||
}
|
||||
else if (!(dd->ipath_flags & IPATH_DISABLED)) {
|
||||
dev_info(dev, "Disabling unit %d\n", dd->ipath_unit);
|
||||
ipath_shutdown_device(dd);
|
||||
dd->ipath_flags |= IPATH_DISABLED;
|
||||
*dd->ipath_statusp |= IPATH_STATUS_ADMIN_DISABLED;
|
||||
}
|
||||
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static DRIVER_ATTR(num_units, S_IRUGO, show_num_units, NULL);
|
||||
static DRIVER_ATTR(version, S_IRUGO, show_version, NULL);
|
||||
|
||||
static struct attribute *driver_attributes[] = {
|
||||
&driver_attr_num_units.attr,
|
||||
&driver_attr_version.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct attribute_group driver_attr_group = {
|
||||
.attrs = driver_attributes
|
||||
};
|
||||
|
||||
static DEVICE_ATTR(guid, S_IWUSR | S_IRUGO, show_guid, store_guid);
|
||||
static DEVICE_ATTR(lid, S_IWUSR | S_IRUGO, show_lid, store_lid);
|
||||
static DEVICE_ATTR(link_state, S_IWUSR, NULL, store_link_state);
|
||||
static DEVICE_ATTR(mlid, S_IWUSR | S_IRUGO, show_mlid, store_mlid);
|
||||
static DEVICE_ATTR(mtu, S_IWUSR | S_IRUGO, show_mtu, store_mtu);
|
||||
static DEVICE_ATTR(enabled, S_IWUSR | S_IRUGO, show_enabled, store_enabled);
|
||||
static DEVICE_ATTR(nguid, S_IRUGO, show_nguid, NULL);
|
||||
static DEVICE_ATTR(reset, S_IWUSR, NULL, store_reset);
|
||||
static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
|
||||
static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
|
||||
static DEVICE_ATTR(status_str, S_IRUGO, show_status_str, NULL);
|
||||
static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL);
|
||||
static DEVICE_ATTR(unit, S_IRUGO, show_unit, NULL);
|
||||
|
||||
static struct attribute *dev_attributes[] = {
|
||||
&dev_attr_guid.attr,
|
||||
&dev_attr_lid.attr,
|
||||
&dev_attr_link_state.attr,
|
||||
&dev_attr_mlid.attr,
|
||||
&dev_attr_mtu.attr,
|
||||
&dev_attr_nguid.attr,
|
||||
&dev_attr_serial.attr,
|
||||
&dev_attr_status.attr,
|
||||
&dev_attr_status_str.attr,
|
||||
&dev_attr_boardversion.attr,
|
||||
&dev_attr_unit.attr,
|
||||
&dev_attr_enabled.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct attribute_group dev_attr_group = {
|
||||
.attrs = dev_attributes
|
||||
};
|
||||
|
||||
/**
|
||||
* ipath_expose_reset - create a device reset file
|
||||
* @dev: the device structure
|
||||
*
|
||||
* Only expose a file that lets us reset the device after someone
|
||||
* enters diag mode. A device reset is quite likely to crash the
|
||||
* machine entirely, so we don't want to normally make it
|
||||
* available.
|
||||
*/
|
||||
int ipath_expose_reset(struct device *dev)
|
||||
{
|
||||
return device_create_file(dev, &dev_attr_reset);
|
||||
}
|
||||
|
||||
int ipath_driver_create_group(struct device_driver *drv)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = sysfs_create_group(&drv->kobj, &driver_attr_group);
|
||||
if (ret)
|
||||
goto bail;
|
||||
|
||||
ret = sysfs_create_group(&drv->kobj, &driver_stat_attr_group);
|
||||
if (ret)
|
||||
sysfs_remove_group(&drv->kobj, &driver_attr_group);
|
||||
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
void ipath_driver_remove_group(struct device_driver *drv)
|
||||
{
|
||||
sysfs_remove_group(&drv->kobj, &driver_stat_attr_group);
|
||||
sysfs_remove_group(&drv->kobj, &driver_attr_group);
|
||||
}
|
||||
|
||||
int ipath_device_create_group(struct device *dev, struct ipath_devdata *dd)
|
||||
{
|
||||
int ret;
|
||||
char unit[5];
|
||||
|
||||
ret = sysfs_create_group(&dev->kobj, &dev_attr_group);
|
||||
if (ret)
|
||||
goto bail;
|
||||
|
||||
ret = sysfs_create_group(&dev->kobj, &dev_counter_attr_group);
|
||||
if (ret)
|
||||
goto bail_attrs;
|
||||
|
||||
snprintf(unit, sizeof(unit), "%02d", dd->ipath_unit);
|
||||
ret = sysfs_create_link(&dev->driver->kobj, &dev->kobj, unit);
|
||||
if (ret == 0)
|
||||
goto bail;
|
||||
|
||||
sysfs_remove_group(&dev->kobj, &dev_counter_attr_group);
|
||||
bail_attrs:
|
||||
sysfs_remove_group(&dev->kobj, &dev_attr_group);
|
||||
bail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
void ipath_device_remove_group(struct device *dev, struct ipath_devdata *dd)
|
||||
{
|
||||
char unit[5];
|
||||
|
||||
snprintf(unit, sizeof(unit), "%02d", dd->ipath_unit);
|
||||
sysfs_remove_link(&dev->driver->kobj, unit);
|
||||
|
||||
sysfs_remove_group(&dev->kobj, &dev_counter_attr_group);
|
||||
sysfs_remove_group(&dev->kobj, &dev_attr_group);
|
||||
|
||||
device_remove_file(dev, &dev_attr_reset);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user