patch-2.4.13 linux/drivers/i2o/i2o_config.c

• Lines: 966
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.12/linux/drivers/i2o/i2o_config.c
• Orig date: Mon Aug 27 12:41:41 2001

diff -u --recursive --new-file v2.4.12/linux/drivers/i2o/i2o_config.c linux/drivers/i2o/i2o_config.c
@@ -1,965 +0,0 @@
-/*
- * I2O Configuration Interface Driver
- *
- * (C) Copyright 1999   Red Hat Software
- *	
- * Written by Alan Cox, Building Number Three Ltd
- *
- * Modified 04/20/1999 by Deepak Saxena
- *   - Added basic ioctl() support
- * Modified 06/07/1999 by Deepak Saxena
- *   - Added software download ioctl (still testing)
- * Modified 09/10/1999 by Auvo Häkkinen
- *   - Changes to i2o_cfg_reply(), ioctl_parms()
- *   - Added ioct_validate()
- * Modified 09/30/1999 by Taneli Vähäkangas
- *   - Fixed ioctl_swdl()
- * Modified 10/04/1999 by Taneli Vähäkangas
- *   - Changed ioctl_swdl(), implemented ioctl_swul() and ioctl_swdel()
- * Modified 11/18/199 by Deepak Saxena
- *   - Added event managmenet support
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/i2o.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/miscdevice.h>
-#include <linux/mm.h>
-#include <linux/spinlock.h>
-#include <linux/smp_lock.h>
-
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-static int i2o_cfg_context = -1;
-static void *page_buf;
-static spinlock_t i2o_config_lock = SPIN_LOCK_UNLOCKED;
-struct wait_queue *i2o_wait_queue;
-
-#define MODINC(x,y) (x = x++ % y)
-
-struct i2o_cfg_info
-{
-	struct file* fp;
-	struct fasync_struct *fasync;
-	struct i2o_evt_info event_q[I2O_EVT_Q_LEN];
-	u16		q_in;		// Queue head index
-	u16		q_out;		// Queue tail index
-	u16		q_len;		// Queue length
-	u16		q_lost;		// Number of lost events
-	u32		q_id;		// Event queue ID...used as tx_context
-	struct	i2o_cfg_info *next;
-};
-static struct i2o_cfg_info *open_files = NULL;
-static int i2o_cfg_info_id = 0;
-
-static int ioctl_getiops(unsigned long);
-static int ioctl_gethrt(unsigned long);
-static int ioctl_getlct(unsigned long);
-static int ioctl_parms(unsigned long, unsigned int);
-static int ioctl_html(unsigned long);
-static int ioctl_swdl(unsigned long);
-static int ioctl_swul(unsigned long);
-static int ioctl_swdel(unsigned long);
-static int ioctl_validate(unsigned long); 
-static int ioctl_evt_reg(unsigned long, struct file *);
-static int ioctl_evt_get(unsigned long, struct file *);
-static int cfg_fasync(int, struct file*, int);
-
-/*
- *	This is the callback for any message we have posted. The message itself
- *	will be returned to the message pool when we return from the IRQ
- *
- *	This runs in irq context so be short and sweet.
- */
-static void i2o_cfg_reply(struct i2o_handler *h, struct i2o_controller *c, struct i2o_message *m)
-{
-	u32 *msg = (u32 *)m;
-
-	if (msg[0] & MSG_FAIL) {
-		u32 *preserved_msg = (u32*)(c->mem_offset + msg[7]);
-
-		printk(KERN_ERR "i2o_config: IOP failed to process the msg.\n");
-
-		/* Release the preserved msg frame by resubmitting it as a NOP */
-
-		preserved_msg[0] = THREE_WORD_MSG_SIZE | SGL_OFFSET_0;
-		preserved_msg[1] = I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0;
-		preserved_msg[2] = 0;
-		i2o_post_message(c, msg[7]);
-	}
-
-	if (msg[4] >> 24)  // ReqStatus != SUCCESS
-		i2o_report_status(KERN_INFO,"i2o_config", msg);
-
-	if(m->function == I2O_CMD_UTIL_EVT_REGISTER)
-	{
-		struct i2o_cfg_info *inf;
-
-		for(inf = open_files; inf; inf = inf->next)
-			if(inf->q_id == msg[3])
-				break;
-
-		//
-		// If this is the case, it means that we're getting
-		// events for a file descriptor that's been close()'d
-		// w/o the user unregistering for events first.
-		// The code currently assumes that the user will 
-		// take care of unregistering for events before closing
-		// a file.
-		// 
-		// TODO: 
-		// Should we track event registartion and deregister
-		// for events when a file is close()'d so this doesn't
-		// happen? That would get rid of the search through
-		// the linked list since file->private_data could point
-		// directly to the i2o_config_info data structure...but
-		// it would mean having all sorts of tables to track
-		// what each file is registered for...I think the
-		// current method is simpler. - DS
-		//			
-		if(!inf)
-			return;
-
-		inf->event_q[inf->q_in].id.iop = c->unit;
-		inf->event_q[inf->q_in].id.tid = m->target_tid;
-		inf->event_q[inf->q_in].id.evt_mask = msg[4];
-
-		//
-		// Data size = msg size - reply header
-		//
-		inf->event_q[inf->q_in].data_size = (m->size - 5) * 4;
-		if(inf->event_q[inf->q_in].data_size)
-			memcpy(inf->event_q[inf->q_in].evt_data, 
-				(unsigned char *)(msg + 5),
-				inf->event_q[inf->q_in].data_size);
-
-		spin_lock(&i2o_config_lock);
-		MODINC(inf->q_in, I2O_EVT_Q_LEN);
-		if(inf->q_len == I2O_EVT_Q_LEN)
-		{
-			MODINC(inf->q_out, I2O_EVT_Q_LEN);
-			inf->q_lost++;
-		}
-		else
-		{
-			// Keep I2OEVTGET on another CPU from touching this
-			inf->q_len++;
-		}
-		spin_unlock(&i2o_config_lock);
-		
-
-//		printk(KERN_INFO "File %p w/id %d has %d events\n",
-//			inf->fp, inf->q_id, inf->q_len);	
-
-		kill_fasync(&inf->fasync, SIGIO, POLL_IN);
-	}
-
-	return;
-}
-
-/*
- *	Each of these describes an i2o message handler. They are
- *	multiplexed by the i2o_core code
- */
- 
-struct i2o_handler cfg_handler=
-{
-	i2o_cfg_reply,
-	NULL,
-	NULL,
-	NULL,
-	"Configuration",
-	0,
-	0xffffffff	// All classes
-};
-
-static ssize_t cfg_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
-{
-	printk(KERN_INFO "i2o_config write not yet supported\n");
-
-	return 0;
-}
-
-
-static ssize_t cfg_read(struct file *file, char *buf, size_t count, loff_t *ptr)
-{
-	return 0;
-}
-
-/*
- * IOCTL Handler
- */
-static int cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
-	unsigned long arg)
-{
-	int ret;
-
-	switch(cmd)
-	{	
-		case I2OGETIOPS:
-			ret = ioctl_getiops(arg);
-			break;
-
-		case I2OHRTGET:
-			ret = ioctl_gethrt(arg);
-			break;
-
-		case I2OLCTGET:
-			ret = ioctl_getlct(arg);
-			break;
-
-		case I2OPARMSET:
-			ret = ioctl_parms(arg, I2OPARMSET);
-			break;
-
-		case I2OPARMGET:
-			ret = ioctl_parms(arg, I2OPARMGET);
-			break;
-
-		case I2OSWDL:
-			ret = ioctl_swdl(arg);
-			break;
-
-		case I2OSWUL:
-			ret = ioctl_swul(arg);
-			break;
-
-		case I2OSWDEL:
-			ret = ioctl_swdel(arg);
-			break;
-
-		case I2OVALIDATE:
-			ret = ioctl_validate(arg);
-			break;
-			
-		case I2OHTML:
-			ret = ioctl_html(arg);
-			break;
-
-		case I2OEVTREG:
-			ret = ioctl_evt_reg(arg, fp);
-			break;
-
-		case I2OEVTGET:
-			ret = ioctl_evt_get(arg, fp);
-			break;
-
-		default:
-			ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-int ioctl_getiops(unsigned long arg)
-{
-	u8 *user_iop_table = (u8*)arg;
-	struct i2o_controller *c = NULL;
-	int i;
-	u8 foo[MAX_I2O_CONTROLLERS];
-
-	if(!access_ok(VERIFY_WRITE, user_iop_table,  MAX_I2O_CONTROLLERS))
-		return -EFAULT;
-
-	for(i = 0; i < MAX_I2O_CONTROLLERS; i++)
-	{
-		c = i2o_find_controller(i);
-		if(c)
-		{
-			foo[i] = 1;
-			i2o_unlock_controller(c);
-		}
-		else
-		{
-			foo[i] = 0;
-		}
-	}
-
-	__copy_to_user(user_iop_table, foo, MAX_I2O_CONTROLLERS);
-	return 0;
-}
-
-int ioctl_gethrt(unsigned long arg)
-{
-	struct i2o_controller *c;
-	struct i2o_cmd_hrtlct *cmd = (struct i2o_cmd_hrtlct*)arg;
-	struct i2o_cmd_hrtlct kcmd;
-	i2o_hrt *hrt;
-	int len;
-	u32 reslen;
-	int ret = 0;
-
-	if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
-		return -EFAULT;
-
-	if(get_user(reslen, kcmd.reslen) < 0)
-		return -EFAULT;
-
-	if(kcmd.resbuf == NULL)
-		return -EFAULT;
-
-	c = i2o_find_controller(kcmd.iop);
-	if(!c)
-		return -ENXIO;
-		
-	hrt = (i2o_hrt *)c->hrt;
-
-	i2o_unlock_controller(c);
-
-	len = 8 + ((hrt->entry_len * hrt->num_entries) << 2);
-	
-	/* We did a get user...so assuming mem is ok...is this bad? */
-	put_user(len, kcmd.reslen);
-	if(len > reslen)
-		ret = -ENOBUFS;	
-	if(copy_to_user(kcmd.resbuf, (void*)hrt, len))
-		ret = -EFAULT;
-
-	return ret;
-}
-
-int ioctl_getlct(unsigned long arg)
-{
-	struct i2o_controller *c;
-	struct i2o_cmd_hrtlct *cmd = (struct i2o_cmd_hrtlct*)arg;
-	struct i2o_cmd_hrtlct kcmd;
-	i2o_lct *lct;
-	int len;
-	int ret = 0;
-	u32 reslen;
-
-	if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
-		return -EFAULT;
-
-	if(get_user(reslen, kcmd.reslen) < 0)
-		return -EFAULT;
-
-	if(kcmd.resbuf == NULL)
-		return -EFAULT;
-
-	c = i2o_find_controller(kcmd.iop);
-	if(!c)
-		return -ENXIO;
-
-	lct = (i2o_lct *)c->lct;
-	i2o_unlock_controller(c);
-
-	len = (unsigned int)lct->table_size << 2;
-	put_user(len, kcmd.reslen);
-	if(len > reslen)
-		ret = -ENOBUFS;	
-	else if(copy_to_user(kcmd.resbuf, (void*)lct, len))
-		ret = -EFAULT;
-
-	return ret;
-}
-
-static int ioctl_parms(unsigned long arg, unsigned int type)
-{
-	int ret = 0;
-	struct i2o_controller *c;
-	struct i2o_cmd_psetget *cmd = (struct i2o_cmd_psetget*)arg;
-	struct i2o_cmd_psetget kcmd;
-	u32 reslen;
-	u8 *ops;
-	u8 *res;
-	int len;
-
-	u32 i2o_cmd = (type == I2OPARMGET ? 
-				I2O_CMD_UTIL_PARAMS_GET :
-				I2O_CMD_UTIL_PARAMS_SET);
-
-	if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget)))
-		return -EFAULT;
-
-	if(get_user(reslen, kcmd.reslen))
-		return -EFAULT;
-
-	c = i2o_find_controller(kcmd.iop);
-	if(!c)
-		return -ENXIO;
-
-	ops = (u8*)kmalloc(kcmd.oplen, GFP_KERNEL);
-	if(!ops)
-	{
-		i2o_unlock_controller(c);
-		return -ENOMEM;
-	}
-
-	if(copy_from_user(ops, kcmd.opbuf, kcmd.oplen))
-	{
-		i2o_unlock_controller(c);
-		kfree(ops);
-		return -EFAULT;
-	}
-
-	/*
-	 * It's possible to have a _very_ large table
-	 * and that the user asks for all of it at once...
-	 */
-	res = (u8*)kmalloc(65536, GFP_KERNEL);
-	if(!res)
-	{
-		i2o_unlock_controller(c);
-		kfree(ops);
-		return -ENOMEM;
-	}
-
-	len = i2o_issue_params(i2o_cmd, c, kcmd.tid, 
-				ops, kcmd.oplen, res, 65536);
-	i2o_unlock_controller(c);
-	kfree(ops);
-        
-	if (len < 0) {
-		kfree(res);
-		return -EAGAIN;
-	}
-
-	put_user(len, kcmd.reslen);
-	if(len > reslen)
-		ret = -ENOBUFS;
-	else if(copy_to_user(cmd->resbuf, res, len))
-		ret = -EFAULT;
-
-	kfree(res);
-
-	return ret;
-}
-
-int ioctl_html(unsigned long arg)
-{
-	struct i2o_html *cmd = (struct i2o_html*)arg;
-	struct i2o_html kcmd;
-	struct i2o_controller *c;
-	u8 *res = NULL;
-	void *query = NULL;
-	int ret = 0;
-	int token;
-	u32 len;
-	u32 reslen;
-	u32 msg[MSG_FRAME_SIZE/4];
-
-	if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_html)))
-	{
-		printk(KERN_INFO "i2o_config: can't copy html cmd\n");
-		return -EFAULT;
-	}
-
-	if(get_user(reslen, kcmd.reslen) < 0)
-	{
-		printk(KERN_INFO "i2o_config: can't copy html reslen\n");
-		return -EFAULT;
-	}
-
-	if(!kcmd.resbuf)		
-	{
-		printk(KERN_INFO "i2o_config: NULL html buffer\n");
-		return -EFAULT;
-	}
-
-	c = i2o_find_controller(kcmd.iop);
-	if(!c)
-		return -ENXIO;
-
-	if(kcmd.qlen) /* Check for post data */
-	{
-		query = kmalloc(kcmd.qlen, GFP_KERNEL);
-		if(!query)
-		{
-			i2o_unlock_controller(c);
-			return -ENOMEM;
-		}
-		if(copy_from_user(query, kcmd.qbuf, kcmd.qlen))
-		{
-			i2o_unlock_controller(c);
-			printk(KERN_INFO "i2o_config: could not get query\n");
-			kfree(query);
-			return -EFAULT;
-		}
-	}
-
-	res = kmalloc(65536, GFP_KERNEL);
-	if(!res)
-	{
-		i2o_unlock_controller(c);
-		kfree(query);
-		return -ENOMEM;
-	}
-
-	msg[1] = (I2O_CMD_UTIL_CONFIG_DIALOG << 24)|HOST_TID<<12|kcmd.tid;
-	msg[2] = i2o_cfg_context;
-	msg[3] = 0;
-	msg[4] = kcmd.page;
-	msg[5] = 0xD0000000|65536;
-	msg[6] = virt_to_bus(res);
-	if(!kcmd.qlen) /* Check for post data */
-		msg[0] = SEVEN_WORD_MSG_SIZE|SGL_OFFSET_5;
-	else
-	{
-		msg[0] = NINE_WORD_MSG_SIZE|SGL_OFFSET_5;
-		msg[5] = 0x50000000|65536;
-		msg[7] = 0xD4000000|(kcmd.qlen);
-		msg[8] = virt_to_bus(query);
-	}
-	/*
-	Wait for a considerable time till the Controller 
-	does its job before timing out. The controller might
-	take more time to process this request if there are
-	many devices connected to it.
-	*/
-	token = i2o_post_wait_mem(c, msg, 9*4, 400, query, res);
-	if(token < 0)
-	{
-		printk(KERN_DEBUG "token = %#10x\n", token);
-		i2o_unlock_controller(c);
-		
-		if(token != -ETIMEDOUT)
-		{
-			kfree(res);
-			if(kcmd.qlen) kfree(query);
-		}
-
-		return token;
-	}
-	i2o_unlock_controller(c);
-
-	len = strnlen(res, 65536);
-	put_user(len, kcmd.reslen);
-	if(len > reslen)
-		ret = -ENOMEM;
-	if(copy_to_user(kcmd.resbuf, res, len))
-		ret = -EFAULT;
-
-	kfree(res);
-	if(kcmd.qlen) 
-		kfree(query);
-
-	return ret;
-}
- 
-int ioctl_swdl(unsigned long arg)
-{
-	struct i2o_sw_xfer kxfer;
-	struct i2o_sw_xfer *pxfer = (struct i2o_sw_xfer *)arg;
-	unsigned char maxfrag = 0, curfrag = 1;
-	unsigned char *buffer;
-	u32 msg[9];
-	unsigned int status = 0, swlen = 0, fragsize = 8192;
-	struct i2o_controller *c;
-
-	if(copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
-		return -EFAULT;
-
-	if(get_user(swlen, kxfer.swlen) < 0)
-		return -EFAULT;
-
-	if(get_user(maxfrag, kxfer.maxfrag) < 0)
-		return -EFAULT;
-
-	if(get_user(curfrag, kxfer.curfrag) < 0)
-		return -EFAULT;
-
-	if(curfrag==maxfrag) fragsize = swlen-(maxfrag-1)*8192;
-
-	if(!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
-		return -EFAULT;
-	
-	c = i2o_find_controller(kxfer.iop);
-	if(!c)
-		return -ENXIO;
-
-	buffer=kmalloc(fragsize, GFP_KERNEL);
-	if (buffer==NULL)
-	{
-		i2o_unlock_controller(c);
-		return -ENOMEM;
-	}
-	__copy_from_user(buffer, kxfer.buf, fragsize);
-
-	msg[0]= NINE_WORD_MSG_SIZE | SGL_OFFSET_7;
-	msg[1]= I2O_CMD_SW_DOWNLOAD<<24 | HOST_TID<<12 | ADAPTER_TID;
-	msg[2]= (u32)cfg_handler.context;
-	msg[3]= 0;
-	msg[4]= (((u32)kxfer.flags)<<24) | (((u32)kxfer.sw_type)<<16) |
-		(((u32)maxfrag)<<8) | (((u32)curfrag));
-	msg[5]= swlen;
-	msg[6]= kxfer.sw_id;
-	msg[7]= (0xD0000000 | fragsize);
-	msg[8]= virt_to_bus(buffer);
-
-//	printk("i2o_config: swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
-	status = i2o_post_wait_mem(c, msg, sizeof(msg), 60, buffer, NULL);
-
-	i2o_unlock_controller(c);
-	if(status != -ETIMEDOUT)
-		kfree(buffer);
-	
-	if (status != I2O_POST_WAIT_OK)
-	{
-		// it fails if you try and send frags out of order
-		// and for some yet unknown reasons too
-		printk(KERN_INFO "i2o_config: swdl failed, DetailedStatus = %d\n", status);
-		return status;
-	}
-
-	return 0;
-}
-
-int ioctl_swul(unsigned long arg)
-{
-	struct i2o_sw_xfer kxfer;
-	struct i2o_sw_xfer *pxfer = (struct i2o_sw_xfer *)arg;
-	unsigned char maxfrag = 0, curfrag = 1;
-	unsigned char *buffer;
-	u32 msg[9];
-	unsigned int status = 0, swlen = 0, fragsize = 8192;
-	struct i2o_controller *c;
-	
-	if(copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
-		return -EFAULT;
-		
-	if(get_user(swlen, kxfer.swlen) < 0)
-		return -EFAULT;
-		
-	if(get_user(maxfrag, kxfer.maxfrag) < 0)
-		return -EFAULT;
-		
-	if(get_user(curfrag, kxfer.curfrag) < 0)
-		return -EFAULT;
-	
-	if(curfrag==maxfrag) fragsize = swlen-(maxfrag-1)*8192;
-	
-	if(!kxfer.buf || !access_ok(VERIFY_WRITE, kxfer.buf, fragsize))
-		return -EFAULT;
-		
-	c = i2o_find_controller(kxfer.iop);
-	if(!c)
-		return -ENXIO;
-		
-	buffer=kmalloc(fragsize, GFP_KERNEL);
-	if (buffer==NULL)
-	{
-		i2o_unlock_controller(c);
-		return -ENOMEM;
-	}
-	
-	msg[0]= NINE_WORD_MSG_SIZE | SGL_OFFSET_7;
-	msg[1]= I2O_CMD_SW_UPLOAD<<24 | HOST_TID<<12 | ADAPTER_TID;
-	msg[2]= (u32)cfg_handler.context;
-	msg[3]= 0;
-	msg[4]= (u32)kxfer.flags<<24|(u32)kxfer.sw_type<<16|(u32)maxfrag<<8|(u32)curfrag;
-	msg[5]= swlen;
-	msg[6]= kxfer.sw_id;
-	msg[7]= (0xD0000000 | fragsize);
-	msg[8]= virt_to_bus(buffer);
-	
-//	printk("i2o_config: swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
-	status = i2o_post_wait_mem(c, msg, sizeof(msg), 60, buffer, NULL);
-	i2o_unlock_controller(c);
-	
-	if (status != I2O_POST_WAIT_OK)
-	{
-		if(status != -ETIMEDOUT)
-			kfree(buffer);
-		printk(KERN_INFO "i2o_config: swul failed, DetailedStatus = %d\n", status);
-		return status;
-	}
-	
-	__copy_to_user(kxfer.buf, buffer, fragsize);
-	kfree(buffer);
-	
-	return 0;
-}
-
-int ioctl_swdel(unsigned long arg)
-{
-	struct i2o_controller *c;
-	struct i2o_sw_xfer kxfer, *pxfer = (struct i2o_sw_xfer *)arg;
-	u32 msg[7];
-	unsigned int swlen;
-	int token;
-	
-	if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
-		return -EFAULT;
-		
-	if (get_user(swlen, kxfer.swlen) < 0)
-		return -EFAULT;
-		
-	c = i2o_find_controller(kxfer.iop);
-	if (!c)
-		return -ENXIO;
-
-	msg[0] = SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0;
-	msg[1] = I2O_CMD_SW_REMOVE<<24 | HOST_TID<<12 | ADAPTER_TID;
-	msg[2] = (u32)i2o_cfg_context;
-	msg[3] = 0;
-	msg[4] = (u32)kxfer.flags<<24 | (u32)kxfer.sw_type<<16;
-	msg[5] = swlen;
-	msg[6] = kxfer.sw_id;
-
-	token = i2o_post_wait(c, msg, sizeof(msg), 10);
-	i2o_unlock_controller(c);
-	
-	if (token != I2O_POST_WAIT_OK)
-	{
-		printk(KERN_INFO "i2o_config: swdel failed, DetailedStatus = %d\n", token);
-		return -ETIMEDOUT;
-	}
-	
-	return 0;
-}
-
-int ioctl_validate(unsigned long arg)
-{
-        int token;
-        int iop = (int)arg;
-        u32 msg[4];
-        struct i2o_controller *c;
-
-        c=i2o_find_controller(iop);
-        if (!c)
-                return -ENXIO;
-
-        msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
-        msg[1] = I2O_CMD_CONFIG_VALIDATE<<24 | HOST_TID<<12 | iop;
-        msg[2] = (u32)i2o_cfg_context;
-        msg[3] = 0;
-
-        token = i2o_post_wait(c, msg, sizeof(msg), 10);
-        i2o_unlock_controller(c);
-
-        if (token != I2O_POST_WAIT_OK)
-        {
-                printk(KERN_INFO "Can't validate configuration, ErrorStatus = %d\n",
-                	token);
-                return -ETIMEDOUT;
-        }
-
-        return 0;
-}   
-
-static int ioctl_evt_reg(unsigned long arg, struct file *fp)
-{
-	u32 msg[5];
-	struct i2o_evt_id *pdesc = (struct i2o_evt_id *)arg;
-	struct i2o_evt_id kdesc;
-	struct i2o_controller *iop;
-	struct i2o_device *d;
-
-	if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
-		return -EFAULT;
-
-	/* IOP exists? */
-	iop = i2o_find_controller(kdesc.iop);
-	if(!iop)
-		return -ENXIO;
-	i2o_unlock_controller(iop);
-
-	/* Device exists? */
-	for(d = iop->devices; d; d = d->next)
-		if(d->lct_data.tid == kdesc.tid)
-			break;
-
-	if(!d)
-		return -ENODEV;
-
-	msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
-	msg[1] = I2O_CMD_UTIL_EVT_REGISTER<<24 | HOST_TID<<12 | kdesc.tid;
-	msg[2] = (u32)i2o_cfg_context;
-	msg[3] = (u32)fp->private_data;
-	msg[4] = kdesc.evt_mask;
-
-	i2o_post_this(iop, msg, 20);
-
-	return 0;
-}	
-
-static int ioctl_evt_get(unsigned long arg, struct file *fp)
-{
-	u32 id = (u32)fp->private_data;
-	struct i2o_cfg_info *p = NULL;
-	struct i2o_evt_get *uget = (struct i2o_evt_get*)arg;
-	struct i2o_evt_get kget;
-	unsigned long flags;
-
-	for(p = open_files; p; p = p->next)
-		if(p->q_id == id)
-			break;
-
-	if(!p->q_len)
-	{
-		return -ENOENT;
-		return 0;
-	}
-
-	memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
-	MODINC(p->q_out, I2O_EVT_Q_LEN);
-	spin_lock_irqsave(&i2o_config_lock, flags);
-	p->q_len--;
-	kget.pending = p->q_len;
-	kget.lost = p->q_lost;
-	spin_unlock_irqrestore(&i2o_config_lock, flags);
-
-	if(copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
-		return -EFAULT;
-	return 0;
-}
-
-static int cfg_open(struct inode *inode, struct file *file)
-{
-	struct i2o_cfg_info *tmp = 
-		(struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info), GFP_KERNEL);
-	unsigned long flags;
-
-	if(!tmp)
-		return -ENOMEM;
-
-	file->private_data = (void*)(i2o_cfg_info_id++);
-	tmp->fp = file;
-	tmp->fasync = NULL;
-	tmp->q_id = (u32)file->private_data;
-	tmp->q_len = 0;
-	tmp->q_in = 0;
-	tmp->q_out = 0;
-	tmp->q_lost = 0;
-	tmp->next = open_files;
-
-	spin_lock_irqsave(&i2o_config_lock, flags);
-	open_files = tmp;
-	spin_unlock_irqrestore(&i2o_config_lock, flags);
-	
-	return 0;
-}
-
-static int cfg_release(struct inode *inode, struct file *file)
-{
-	u32 id = (u32)file->private_data;
-	struct i2o_cfg_info *p1, *p2;
-	unsigned long flags;
-
-	lock_kernel();
-	p1 = p2 = NULL;
-
-	spin_lock_irqsave(&i2o_config_lock, flags);
-	for(p1 = open_files; p1; )
-	{
-		if(p1->q_id == id)
-		{
-
-			if(p1->fasync)
-				cfg_fasync(-1, file, 0);
-			if(p2)
-				p2->next = p1->next;
-			else
-				open_files = p1->next;
-
-			kfree(p1);
-			break;
-		}
-		p2 = p1;
-		p1 = p1->next;
-	}
-	spin_unlock_irqrestore(&i2o_config_lock, flags);
-	unlock_kernel();
-
-	return 0;
-}
-
-static int cfg_fasync(int fd, struct file *fp, int on)
-{
-	u32 id = (u32)fp->private_data;
-	struct i2o_cfg_info *p;
-
-	for(p = open_files; p; p = p->next)
-		if(p->q_id == id)
-			break;
-
-	if(!p)
-		return -EBADF;
-
-	return fasync_helper(fd, fp, on, &p->fasync);
-}
-
-static struct file_operations config_fops =
-{
-	owner:		THIS_MODULE,
-	llseek:		no_llseek,
-	read:		cfg_read,
-	write:		cfg_write,
-	ioctl:		cfg_ioctl,
-	open:		cfg_open,
-	release:	cfg_release,
-	fasync:		cfg_fasync,
-};
-
-static struct miscdevice i2o_miscdev = {
-	I2O_MINOR,
-	"i2octl",
-	&config_fops
-};	
-
-#ifdef MODULE
-int init_module(void)
-#else
-int __init i2o_config_init(void)
-#endif
-{
-	printk(KERN_INFO "I2O configuration manager v 0.04.\n");
-	printk(KERN_INFO "  (C) Copyright 1999 Red Hat Software\n");
-	
-	if((page_buf = kmalloc(4096, GFP_KERNEL))==NULL)
-	{
-		printk(KERN_ERR "i2o_config: no memory for page buffer.\n");
-		return -ENOBUFS;
-	}
-	if(misc_register(&i2o_miscdev)==-1)
-	{
-		printk(KERN_ERR "i2o_config: can't register device.\n");
-		kfree(page_buf);
-		return -EBUSY;
-	}
-	/*
-	 *	Install our handler
-	 */
-	if(i2o_install_handler(&cfg_handler)<0)
-	{
-		kfree(page_buf);
-		printk(KERN_ERR "i2o_config: handler register failed.\n");
-		misc_deregister(&i2o_miscdev);
-		return -EBUSY;
-	}
-	/*
-	 *	The low 16bits of the transaction context must match this
-	 *	for everything we post. Otherwise someone else gets our mail
-	 */
-	i2o_cfg_context = cfg_handler.context;
-	return 0;
-}
-
-#ifdef MODULE
-
-void cleanup_module(void)
-{
-	misc_deregister(&i2o_miscdev);
-	
-	if(page_buf)
-		kfree(page_buf);
-	if(i2o_cfg_context != -1)
-		i2o_remove_handler(&cfg_handler);
-}
- 
-EXPORT_NO_SYMBOLS;
-MODULE_AUTHOR("Red Hat Software");
-MODULE_DESCRIPTION("I2O Configuration");
-
-#endif