* I2O Configuration Interface Driver
*
* (C) Copyright 1999-2002 Red Hat
- *
- * 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 11/18/1999 by Deepak Saxena
- * - Added event managmenet support
+ * Written by Alan Cox, Building Number Three Ltd
*
- * 2.4 rewrite ported to 2.5 - Alan Cox <alan@redhat.com>
+ * Fixes/additions:
+ * Deepak Saxena (04/20/1999):
+ * Added basic ioctl() support
+ * Deepak Saxena (06/07/1999):
+ * Added software download ioctl (still testing)
+ * Auvo Häkkinen (09/10/1999):
+ * Changes to i2o_cfg_reply(), ioctl_parms()
+ * Added ioct_validate()
+ * Taneli Vähäkangas (09/30/1999):
+ * Fixed ioctl_swdl()
+ * Taneli Vähäkangas (10/04/1999):
+ * Changed ioctl_swdl(), implemented ioctl_swul() and ioctl_swdel()
+ * Deepak Saxena (11/18/1999):
+ * Added event managmenet support
+ * Alan Cox <alan@redhat.com>:
+ * 2.4 rewrite ported to 2.5
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Added pass-thru support for Adaptec's raidutils
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* 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 <linux/compat.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) + 1) % (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 */
+#define SG_TABLESIZE 30
- 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);
-
+extern int i2o_parm_issue(struct i2o_device *, int, void *, int, void *, int);
-// printk(KERN_INFO "File %p w/id %d has %d events\n",
-// inf->fp, inf->q_id, inf->q_len);
+static int i2o_cfg_ioctl(struct inode *, struct file *, unsigned int,
+ unsigned long);
- kill_fasync(&inf->fasync, SIGIO, POLL_IN);
- }
+static spinlock_t i2o_config_lock;
- return;
-}
+#define MODINC(x,y) ((x) = ((x) + 1) % (y))
-/*
- * 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
+struct sg_simple_element {
+ u32 flag_count;
+ u32 addr_bus;
};
-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;
-}
+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
+ ulong q_id; // Event queue ID...used as tx_context
+ struct i2o_cfg_info *next;
+};
+static struct i2o_cfg_info *open_files = NULL;
+static ulong i2o_cfg_info_id = 0;
-/*
- * IOCTL Handler
- */
-static int cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
- unsigned long arg)
+static int i2o_cfg_getiops(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;
+ struct i2o_controller *c;
+ u8 __user *user_iop_table = (void __user *)arg;
+ u8 tmp[MAX_I2O_CONTROLLERS];
+ int ret = 0;
- case I2OEVTREG:
- ret = ioctl_evt_reg(arg, fp);
- break;
+ memset(tmp, 0, MAX_I2O_CONTROLLERS);
- case I2OEVTGET:
- ret = ioctl_evt_get(arg, fp);
- break;
+ list_for_each_entry(c, &i2o_controllers, list)
+ tmp[c->unit] = 1;
- default:
- ret = -EINVAL;
- }
+ if (copy_to_user(user_iop_table, tmp, MAX_I2O_CONTROLLERS))
+ ret = -EFAULT;
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;
- if(pci_set_dma_mask(c->pdev, 0xffffffff))
- {
- printk(KERN_WARNING "i2o_config : No suitable DMA available on controller %d\n", i);
- i2o_unlock_controller(c);
- continue;
- }
-
- 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)
+static int i2o_cfg_gethrt(unsigned long arg)
{
struct i2o_controller *c;
- struct i2o_cmd_hrtlct *cmd = (struct i2o_cmd_hrtlct*)arg;
+ struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)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)))
+ if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
return -EFAULT;
- if(get_user(reslen, kcmd.reslen) < 0)
+ if (get_user(reslen, kcmd.reslen) < 0)
return -EFAULT;
- if(kcmd.resbuf == NULL)
+ if (kcmd.resbuf == NULL)
return -EFAULT;
- c = i2o_find_controller(kcmd.iop);
- if(!c)
+ c = i2o_find_iop(kcmd.iop);
+ if (!c)
return -ENXIO;
-
- hrt = (i2o_hrt *)c->hrt;
- i2o_unlock_controller(c);
+ hrt = (i2o_hrt *) c->hrt.virt;
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))
+ if (len > reslen)
+ ret = -ENOBUFS;
+ if (copy_to_user(kcmd.resbuf, (void *)hrt, len))
ret = -EFAULT;
return ret;
-}
+};
-int ioctl_getlct(unsigned long arg)
+static int i2o_cfg_getlct(unsigned long arg)
{
struct i2o_controller *c;
- struct i2o_cmd_hrtlct *cmd = (struct i2o_cmd_hrtlct*)arg;
+ struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)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)))
+ if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
return -EFAULT;
- if(get_user(reslen, kcmd.reslen) < 0)
+ if (get_user(reslen, kcmd.reslen) < 0)
return -EFAULT;
- if(kcmd.resbuf == NULL)
+ if (kcmd.resbuf == NULL)
return -EFAULT;
- c = i2o_find_controller(kcmd.iop);
- if(!c)
+ c = i2o_find_iop(kcmd.iop);
+ if (!c)
return -ENXIO;
- lct = (i2o_lct *)c->lct;
- i2o_unlock_controller(c);
+ lct = (i2o_lct *) c->lct;
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))
+ if (len > reslen)
+ ret = -ENOBUFS;
+ else if (copy_to_user(kcmd.resbuf, lct, len))
ret = -EFAULT;
return ret;
-}
+};
-static int ioctl_parms(unsigned long arg, unsigned int type)
+static int i2o_cfg_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_device *dev;
+ struct i2o_cmd_psetget __user *cmd =
+ (struct i2o_cmd_psetget __user *)arg;
struct i2o_cmd_psetget kcmd;
u32 reslen;
u8 *ops;
u8 *res;
- int len;
+ int len = 0;
- u32 i2o_cmd = (type == I2OPARMGET ?
- I2O_CMD_UTIL_PARAMS_GET :
- I2O_CMD_UTIL_PARAMS_SET);
+ 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)))
+ if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget)))
return -EFAULT;
- if(get_user(reslen, kcmd.reslen))
+ if (get_user(reslen, kcmd.reslen))
return -EFAULT;
- c = i2o_find_controller(kcmd.iop);
- if(!c)
+ c = i2o_find_iop(kcmd.iop);
+ if (!c)
+ return -ENXIO;
+
+ dev = i2o_iop_find_device(c, kcmd.tid);
+ if (!dev)
return -ENXIO;
- ops = (u8*)kmalloc(kcmd.oplen, GFP_KERNEL);
- if(!ops)
- {
- i2o_unlock_controller(c);
+ ops = (u8 *) kmalloc(kcmd.oplen, GFP_KERNEL);
+ if (!ops)
return -ENOMEM;
- }
- if(copy_from_user(ops, kcmd.opbuf, kcmd.oplen))
- {
- i2o_unlock_controller(c);
+ if (copy_from_user(ops, kcmd.opbuf, kcmd.oplen)) {
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);
+ res = (u8 *) kmalloc(65536, GFP_KERNEL);
+ if (!res) {
kfree(ops);
return -ENOMEM;
}
- len = i2o_issue_params(i2o_cmd, c, kcmd.tid,
- ops, kcmd.oplen, res, 65536);
- i2o_unlock_controller(c);
+ len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536);
kfree(ops);
-
+
if (len < 0) {
kfree(res);
return -EAGAIN;
}
put_user(len, kcmd.reslen);
- if(len > reslen)
+ if (len > reslen)
ret = -ENOBUFS;
- else if(copy_to_user(kcmd.resbuf, res, len))
+ else if (copy_to_user(kcmd.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;
- dma_addr_t query_phys, res_phys;
- int ret = 0;
- int token;
- u32 len;
- u32 reslen;
- u32 msg[MSG_FRAME_SIZE];
-
- 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 = pci_alloc_consistent(c->pdev, kcmd.qlen, &query_phys);
- 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");
- pci_free_consistent(c->pdev, kcmd.qlen, query, query_phys);
- return -EFAULT;
- }
- }
-
- res = pci_alloc_consistent(c->pdev, 65536, &res_phys);
- if(!res)
- {
- i2o_unlock_controller(c);
- pci_free_consistent(c->pdev, kcmd.qlen, query, query_phys);
- 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] = res_phys;
- 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] = query_phys;
- }
- /*
- 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, query_phys, res_phys, kcmd.qlen, 65536);
- if(token < 0)
- {
- printk(KERN_DEBUG "token = %#10x\n", token);
- i2o_unlock_controller(c);
-
- if(token != -ETIMEDOUT)
- {
- pci_free_consistent(c->pdev, 65536, res, res_phys);
- if(kcmd.qlen)
- pci_free_consistent(c->pdev, kcmd.qlen, query, query_phys);
- }
- 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;
-
- pci_free_consistent(c->pdev, 65536, res, res_phys);
- if(kcmd.qlen)
- pci_free_consistent(c->pdev, kcmd.qlen, query, query_phys);
+};
- return ret;
-}
-
-int ioctl_swdl(unsigned long arg)
+static int i2o_cfg_swdl(unsigned long arg)
{
struct i2o_sw_xfer kxfer;
- struct i2o_sw_xfer *pxfer = (struct i2o_sw_xfer *)arg;
+ struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
unsigned char maxfrag = 0, curfrag = 1;
- unsigned char *buffer;
- u32 msg[9];
+ struct i2o_dma buffer;
+ struct i2o_message *msg;
unsigned int status = 0, swlen = 0, fragsize = 8192;
struct i2o_controller *c;
- dma_addr_t buffer_phys;
- if(copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
+ if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
return -EFAULT;
- if(get_user(swlen, kxfer.swlen) < 0)
+ if (get_user(swlen, kxfer.swlen) < 0)
return -EFAULT;
- if(get_user(maxfrag, kxfer.maxfrag) < 0)
+ if (get_user(maxfrag, kxfer.maxfrag) < 0)
return -EFAULT;
- if(get_user(curfrag, kxfer.curfrag) < 0)
+ if (get_user(curfrag, kxfer.curfrag) < 0)
return -EFAULT;
- if(curfrag==maxfrag) fragsize = swlen-(maxfrag-1)*8192;
+ if (curfrag == maxfrag)
+ fragsize = swlen - (maxfrag - 1) * 8192;
- if(!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
+ if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
return -EFAULT;
-
- c = i2o_find_controller(kxfer.iop);
- if(!c)
+
+ c = i2o_find_iop(kxfer.iop);
+ if (!c)
return -ENXIO;
- buffer=pci_alloc_consistent(c->pdev, fragsize, &buffer_phys);
- if (buffer==NULL)
- {
- i2o_unlock_controller(c);
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
+ i2o_msg_nop(c, msg);
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]= buffer_phys;
-
-// 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, buffer_phys, 0, fragsize, 0);
-
- i2o_unlock_controller(c);
- if(status != -ETIMEDOUT)
- pci_free_consistent(c->pdev, fragsize, buffer, buffer_phys);
-
- if (status != I2O_POST_WAIT_OK)
- {
+
+ __copy_from_user(buffer.virt, kxfer.buf, fragsize);
+
+ msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+ msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
+ msg->u.head[3] = cpu_to_le32(0);
+ msg->body[0] =
+ cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer.
+ sw_type) << 16) |
+ (((u32) maxfrag) << 8) | (((u32) curfrag)));
+ msg->body[1] = cpu_to_le32(swlen);
+ msg->body[2] = cpu_to_le32(kxfer.sw_id);
+ msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
+ msg->body[4] = cpu_to_le32(buffer.phys);
+
+ osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
+ status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
+
+ if (status != -ETIMEDOUT)
+ i2o_dma_free(&c->pdev->dev, &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);
+ osm_info("swdl failed, DetailedStatus = %d\n", status);
return status;
}
return 0;
-}
+};
-int ioctl_swul(unsigned long arg)
+static int i2o_cfg_swul(unsigned long arg)
{
struct i2o_sw_xfer kxfer;
- struct i2o_sw_xfer *pxfer = (struct i2o_sw_xfer *)arg;
+ struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
unsigned char maxfrag = 0, curfrag = 1;
- unsigned char *buffer;
- u32 msg[9];
+ struct i2o_dma buffer;
+ struct i2o_message *msg;
unsigned int status = 0, swlen = 0, fragsize = 8192;
struct i2o_controller *c;
- dma_addr_t buffer_phys;
-
- 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)
+ int ret = 0;
+
+ if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
+ goto return_fault;
+
+ if (get_user(swlen, kxfer.swlen) < 0)
+ goto return_fault;
+
+ if (get_user(maxfrag, kxfer.maxfrag) < 0)
+ goto return_fault;
+
+ if (get_user(curfrag, kxfer.curfrag) < 0)
+ goto return_fault;
+
+ if (curfrag == maxfrag)
+ fragsize = swlen - (maxfrag - 1) * 8192;
+
+ if (!kxfer.buf)
+ goto return_fault;
+
+ c = i2o_find_iop(kxfer.iop);
+ if (!c)
return -ENXIO;
-
- buffer=pci_alloc_consistent(c->pdev, fragsize, &buffer_phys);
- if (buffer==NULL)
- {
- i2o_unlock_controller(c);
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
+ i2o_msg_nop(c, msg);
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]= buffer_phys;
-
-// 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, buffer_phys, 0, fragsize, 0);
- i2o_unlock_controller(c);
-
- if (status != I2O_POST_WAIT_OK)
- {
- if(status != -ETIMEDOUT)
- pci_free_consistent(c->pdev, fragsize, buffer, buffer_phys);
- printk(KERN_INFO "i2o_config: swul failed, DetailedStatus = %d\n", status);
+
+ msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID);
+ msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
+ msg->u.head[3] = cpu_to_le32(0);
+ msg->body[0] =
+ cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.
+ sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag);
+ msg->body[1] = cpu_to_le32(swlen);
+ msg->body[2] = cpu_to_le32(kxfer.sw_id);
+ msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
+ msg->body[4] = cpu_to_le32(buffer.phys);
+
+ osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
+ status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
+
+ if (status != I2O_POST_WAIT_OK) {
+ if (status != -ETIMEDOUT)
+ i2o_dma_free(&c->pdev->dev, &buffer);
+
+ osm_info("swul failed, DetailedStatus = %d\n", status);
return status;
}
-
- __copy_to_user(kxfer.buf, buffer, fragsize);
- pci_free_consistent(c->pdev, fragsize, buffer, buffer_phys);
-
- return 0;
-}
-int ioctl_swdel(unsigned long arg)
+ if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
+ ret = -EFAULT;
+
+ i2o_dma_free(&c->pdev->dev, &buffer);
+
+ return_ret:
+ return ret;
+ return_fault:
+ ret = -EFAULT;
+ goto return_ret;
+};
+
+static int i2o_cfg_swdel(unsigned long arg)
{
struct i2o_controller *c;
- struct i2o_sw_xfer kxfer, *pxfer = (struct i2o_sw_xfer *)arg;
- u32 msg[7];
+ struct i2o_sw_xfer kxfer;
+ struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
+ struct i2o_message *msg;
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);
+
+ c = i2o_find_iop(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);
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID);
+ msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
+ msg->u.head[3] = cpu_to_le32(0);
+ msg->body[0] =
+ cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16);
+ msg->body[1] = cpu_to_le32(swlen);
+ msg->body[2] = cpu_to_le32(kxfer.sw_id);
+
+ token = i2o_msg_post_wait(c, msg, 10);
+
+ if (token != I2O_POST_WAIT_OK) {
+ osm_info("swdel failed, DetailedStatus = %d\n", token);
return -ETIMEDOUT;
}
-
+
return 0;
-}
+};
-int ioctl_validate(unsigned long arg)
+static int i2o_cfg_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)
+ int token;
+ int iop = (int)arg;
+ struct i2o_message *msg;
+ struct i2o_controller *c;
+
+ c = i2o_find_iop(iop);
+ if (!c)
+ return -ENXIO;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop);
+ msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
+ msg->u.head[3] = cpu_to_le32(0);
+
+ token = i2o_msg_post_wait(c, msg, 10);
+
+ if (token != I2O_POST_WAIT_OK) {
+ osm_info("Can't validate configuration, ErrorStatus = %d\n",
+ token);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+};
+
+static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp)
{
- u32 msg[5];
- struct i2o_evt_id *pdesc = (struct i2o_evt_id *)arg;
+ struct i2o_message *msg;
+ struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg;
struct i2o_evt_id kdesc;
- struct i2o_controller *iop;
+ struct i2o_controller *c;
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)
+ c = i2o_find_iop(kdesc.iop);
+ if (!c)
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)
+ d = i2o_iop_find_device(c, kdesc.tid);
+ 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;
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
- i2o_post_this(iop, msg, 20);
+ msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 |
+ kdesc.tid);
+ msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
+ msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data));
+ msg->body[0] = cpu_to_le32(kdesc.evt_mask);
+
+ i2o_msg_post(c, msg);
return 0;
-}
+}
-static int ioctl_evt_get(unsigned long arg, struct file *fp)
+static int i2o_cfg_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 __user *uget = (struct i2o_evt_get __user *)arg;
struct i2o_evt_get kget;
unsigned long flags;
- for(p = open_files; p; p = p->next)
- if(p->q_id == id)
+ for (p = open_files; p; p = p->next)
+ if (p->q_id == (ulong) fp->private_data)
break;
- if(!p->q_len)
- {
+ 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);
kget.lost = p->q_lost;
spin_unlock_irqrestore(&i2o_config_lock, flags);
- if(copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
+ if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
return -EFAULT;
return 0;
}
+#ifdef CONFIG_I2O_EXT_ADAPTEC
+#ifdef CONFIG_COMPAT
+static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
+ unsigned long arg)
+{
+ struct i2o_cmd_passthru32 __user *cmd;
+ struct i2o_controller *c;
+ u32 __user *user_msg;
+ u32 *reply = NULL;
+ u32 __user *user_reply = NULL;
+ u32 size = 0;
+ u32 reply_size = 0;
+ u32 rcode = 0;
+ struct i2o_dma sg_list[SG_TABLESIZE];
+ u32 sg_offset = 0;
+ u32 sg_count = 0;
+ u32 i = 0;
+ u32 sg_index = 0;
+ i2o_status_block *sb;
+ struct i2o_message *msg;
+ unsigned int iop;
+
+ cmd = (struct i2o_cmd_passthru32 __user *)arg;
+
+ if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
+ return -EFAULT;
+
+ user_msg = compat_ptr(i);
+
+ c = i2o_find_iop(iop);
+ if (!c) {
+ osm_debug("controller %d not found\n", iop);
+ return -ENXIO;
+ }
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+
+ sb = c->status_block.virt;
+
+ if (get_user(size, &user_msg[0])) {
+ osm_warn("unable to get size!\n");
+ return -EFAULT;
+ }
+ size = size >> 16;
+
+ if (size > sb->inbound_frame_size) {
+ osm_warn("size of message > inbound_frame_size");
+ return -EFAULT;
+ }
+
+ user_reply = &user_msg[size];
+
+ size <<= 2; // Convert to bytes
+
+ /* Copy in the user's I2O command */
+ if (copy_from_user(msg, user_msg, size)) {
+ osm_warn("unable to copy user message\n");
+ return -EFAULT;
+ }
+ i2o_dump_message(msg);
+
+ if (get_user(reply_size, &user_reply[0]) < 0)
+ return -EFAULT;
+
+ reply_size >>= 16;
+ reply_size <<= 2;
+
+ reply = kzalloc(reply_size, GFP_KERNEL);
+ if (!reply) {
+ printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
+ c->name);
+ return -ENOMEM;
+ }
+
+ sg_offset = (msg->u.head[0] >> 4) & 0x0f;
+
+ memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
+ if (sg_offset) {
+ struct sg_simple_element *sg;
+
+ if (sg_offset * 4 >= size) {
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ // TODO 64bit fix
+ sg = (struct sg_simple_element *)((&msg->u.head[0]) +
+ sg_offset);
+ sg_count =
+ (size - sg_offset * 4) / sizeof(struct sg_simple_element);
+ if (sg_count > SG_TABLESIZE) {
+ printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
+ c->name, sg_count);
+ rcode = -EINVAL;
+ goto cleanup;
+ }
+
+ for (i = 0; i < sg_count; i++) {
+ int sg_size;
+ struct i2o_dma *p;
+
+ if (!(sg[i].flag_count & 0x10000000
+ /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
+ printk(KERN_DEBUG
+ "%s:Bad SG element %d - not simple (%x)\n",
+ c->name, i, sg[i].flag_count);
+ rcode = -EINVAL;
+ goto cleanup;
+ }
+ sg_size = sg[i].flag_count & 0xffffff;
+ p = &(sg_list[sg_index]);
+ /* Allocate memory for the transfer */
+ if (i2o_dma_alloc
+ (&c->pdev->dev, p, sg_size,
+ PCI_DMA_BIDIRECTIONAL)) {
+ printk(KERN_DEBUG
+ "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
+ c->name, sg_size, i, sg_count);
+ rcode = -ENOMEM;
+ goto sg_list_cleanup;
+ }
+ sg_index++;
+ /* Copy in the user's SG buffer if necessary */
+ if (sg[i].
+ flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
+ // TODO 64bit fix
+ if (copy_from_user
+ (p->virt,
+ (void __user *)(unsigned long)sg[i].
+ addr_bus, sg_size)) {
+ printk(KERN_DEBUG
+ "%s: Could not copy SG buf %d FROM user\n",
+ c->name, i);
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ }
+ //TODO 64bit fix
+ sg[i].addr_bus = (u32) p->phys;
+ }
+ }
+
+ rcode = i2o_msg_post_wait(c, msg, 60);
+ if (rcode) {
+ reply[4] = ((u32) rcode) << 24;
+ goto sg_list_cleanup;
+ }
+
+ if (sg_offset) {
+ u32 msg[I2O_OUTBOUND_MSG_FRAME_SIZE];
+ /* Copy back the Scatter Gather buffers back to user space */
+ u32 j;
+ // TODO 64bit fix
+ struct sg_simple_element *sg;
+ int sg_size;
+
+ // re-acquire the original message to handle correctly the sg copy operation
+ memset(&msg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
+ // get user msg size in u32s
+ if (get_user(size, &user_msg[0])) {
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ size = size >> 16;
+ size *= 4;
+ /* Copy in the user's I2O command */
+ if (copy_from_user(msg, user_msg, size)) {
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ sg_count =
+ (size - sg_offset * 4) / sizeof(struct sg_simple_element);
+
+ // TODO 64bit fix
+ sg = (struct sg_simple_element *)(msg + sg_offset);
+ for (j = 0; j < sg_count; j++) {
+ /* Copy out the SG list to user's buffer if necessary */
+ if (!
+ (sg[j].
+ flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
+ sg_size = sg[j].flag_count & 0xffffff;
+ // TODO 64bit fix
+ if (copy_to_user
+ ((void __user *)(u64) sg[j].addr_bus,
+ sg_list[j].virt, sg_size)) {
+ printk(KERN_WARNING
+ "%s: Could not copy %p TO user %x\n",
+ c->name, sg_list[j].virt,
+ sg[j].addr_bus);
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ }
+ }
+ }
+
+ sg_list_cleanup:
+ /* Copy back the reply to user space */
+ if (reply_size) {
+ // we wrote our own values for context - now restore the user supplied ones
+ if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
+ printk(KERN_WARNING
+ "%s: Could not copy message context FROM user\n",
+ c->name);
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ if (copy_to_user(user_reply, reply, reply_size)) {
+ printk(KERN_WARNING
+ "%s: Could not copy reply TO user\n", c->name);
+ rcode = -EFAULT;
+ }
+ }
+
+ for (i = 0; i < sg_index; i++)
+ i2o_dma_free(&c->pdev->dev, &sg_list[i]);
+
+ cleanup:
+ kfree(reply);
+ return rcode;
+}
+
+static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
+ unsigned long arg)
+{
+ int ret;
+ lock_kernel();
+ switch (cmd) {
+ case I2OGETIOPS:
+ ret = i2o_cfg_ioctl(NULL, file, cmd, arg);
+ break;
+ case I2OPASSTHRU32:
+ ret = i2o_cfg_passthru32(file, cmd, arg);
+ break;
+ default:
+ ret = -ENOIOCTLCMD;
+ break;
+ }
+ unlock_kernel();
+ return ret;
+}
+
+#endif
+
+static int i2o_cfg_passthru(unsigned long arg)
+{
+ struct i2o_cmd_passthru __user *cmd =
+ (struct i2o_cmd_passthru __user *)arg;
+ struct i2o_controller *c;
+ u32 __user *user_msg;
+ u32 *reply = NULL;
+ u32 __user *user_reply = NULL;
+ u32 size = 0;
+ u32 reply_size = 0;
+ u32 rcode = 0;
+ void *sg_list[SG_TABLESIZE];
+ u32 sg_offset = 0;
+ u32 sg_count = 0;
+ int sg_index = 0;
+ u32 i = 0;
+ void *p = NULL;
+ i2o_status_block *sb;
+ struct i2o_message *msg;
+ unsigned int iop;
+
+ if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
+ return -EFAULT;
+
+ c = i2o_find_iop(iop);
+ if (!c) {
+ osm_warn("controller %d not found\n", iop);
+ return -ENXIO;
+ }
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+
+ sb = c->status_block.virt;
+
+ if (get_user(size, &user_msg[0]))
+ return -EFAULT;
+ size = size >> 16;
+
+ if (size > sb->inbound_frame_size) {
+ osm_warn("size of message > inbound_frame_size");
+ return -EFAULT;
+ }
+
+ user_reply = &user_msg[size];
+
+ size <<= 2; // Convert to bytes
+
+ /* Copy in the user's I2O command */
+ if (copy_from_user(msg, user_msg, size))
+ return -EFAULT;
+
+ if (get_user(reply_size, &user_reply[0]) < 0)
+ return -EFAULT;
+
+ reply_size >>= 16;
+ reply_size <<= 2;
+
+ reply = kzalloc(reply_size, GFP_KERNEL);
+ if (!reply) {
+ printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
+ c->name);
+ return -ENOMEM;
+ }
+
+ sg_offset = (msg->u.head[0] >> 4) & 0x0f;
+
+ memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
+ if (sg_offset) {
+ struct sg_simple_element *sg;
+
+ if (sg_offset * 4 >= size) {
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ // TODO 64bit fix
+ sg = (struct sg_simple_element *)((&msg->u.head[0]) +
+ sg_offset);
+ sg_count =
+ (size - sg_offset * 4) / sizeof(struct sg_simple_element);
+ if (sg_count > SG_TABLESIZE) {
+ printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
+ c->name, sg_count);
+ rcode = -EINVAL;
+ goto cleanup;
+ }
+
+ for (i = 0; i < sg_count; i++) {
+ int sg_size;
+
+ if (!(sg[i].flag_count & 0x10000000
+ /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
+ printk(KERN_DEBUG
+ "%s:Bad SG element %d - not simple (%x)\n",
+ c->name, i, sg[i].flag_count);
+ rcode = -EINVAL;
+ goto sg_list_cleanup;
+ }
+ sg_size = sg[i].flag_count & 0xffffff;
+ /* Allocate memory for the transfer */
+ p = kmalloc(sg_size, GFP_KERNEL);
+ if (!p) {
+ printk(KERN_DEBUG
+ "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
+ c->name, sg_size, i, sg_count);
+ rcode = -ENOMEM;
+ goto sg_list_cleanup;
+ }
+ sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
+ /* Copy in the user's SG buffer if necessary */
+ if (sg[i].
+ flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
+ // TODO 64bit fix
+ if (copy_from_user
+ (p, (void __user *)sg[i].addr_bus,
+ sg_size)) {
+ printk(KERN_DEBUG
+ "%s: Could not copy SG buf %d FROM user\n",
+ c->name, i);
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ }
+ //TODO 64bit fix
+ sg[i].addr_bus = virt_to_bus(p);
+ }
+ }
+
+ rcode = i2o_msg_post_wait(c, msg, 60);
+ if (rcode) {
+ reply[4] = ((u32) rcode) << 24;
+ goto sg_list_cleanup;
+ }
+
+ if (sg_offset) {
+ u32 msg[128];
+ /* Copy back the Scatter Gather buffers back to user space */
+ u32 j;
+ // TODO 64bit fix
+ struct sg_simple_element *sg;
+ int sg_size;
+
+ // re-acquire the original message to handle correctly the sg copy operation
+ memset(&msg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
+ // get user msg size in u32s
+ if (get_user(size, &user_msg[0])) {
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ size = size >> 16;
+ size *= 4;
+ /* Copy in the user's I2O command */
+ if (copy_from_user(msg, user_msg, size)) {
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ sg_count =
+ (size - sg_offset * 4) / sizeof(struct sg_simple_element);
+
+ // TODO 64bit fix
+ sg = (struct sg_simple_element *)(msg + sg_offset);
+ for (j = 0; j < sg_count; j++) {
+ /* Copy out the SG list to user's buffer if necessary */
+ if (!
+ (sg[j].
+ flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
+ sg_size = sg[j].flag_count & 0xffffff;
+ // TODO 64bit fix
+ if (copy_to_user
+ ((void __user *)sg[j].addr_bus, sg_list[j],
+ sg_size)) {
+ printk(KERN_WARNING
+ "%s: Could not copy %p TO user %x\n",
+ c->name, sg_list[j],
+ sg[j].addr_bus);
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ }
+ }
+ }
+
+ sg_list_cleanup:
+ /* Copy back the reply to user space */
+ if (reply_size) {
+ // we wrote our own values for context - now restore the user supplied ones
+ if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
+ printk(KERN_WARNING
+ "%s: Could not copy message context FROM user\n",
+ c->name);
+ rcode = -EFAULT;
+ }
+ if (copy_to_user(user_reply, reply, reply_size)) {
+ printk(KERN_WARNING
+ "%s: Could not copy reply TO user\n", c->name);
+ rcode = -EFAULT;
+ }
+ }
+
+ for (i = 0; i < sg_index; i++)
+ kfree(sg_list[i]);
+
+ cleanup:
+ kfree(reply);
+ return rcode;
+}
+#endif
+
+/*
+ * IOCTL Handler
+ */
+static int i2o_cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
+ unsigned long arg)
+{
+ int ret;
+
+ switch (cmd) {
+ case I2OGETIOPS:
+ ret = i2o_cfg_getiops(arg);
+ break;
+
+ case I2OHRTGET:
+ ret = i2o_cfg_gethrt(arg);
+ break;
+
+ case I2OLCTGET:
+ ret = i2o_cfg_getlct(arg);
+ break;
+
+ case I2OPARMSET:
+ ret = i2o_cfg_parms(arg, I2OPARMSET);
+ break;
+
+ case I2OPARMGET:
+ ret = i2o_cfg_parms(arg, I2OPARMGET);
+ break;
+
+ case I2OSWDL:
+ ret = i2o_cfg_swdl(arg);
+ break;
+
+ case I2OSWUL:
+ ret = i2o_cfg_swul(arg);
+ break;
+
+ case I2OSWDEL:
+ ret = i2o_cfg_swdel(arg);
+ break;
+
+ case I2OVALIDATE:
+ ret = i2o_cfg_validate(arg);
+ break;
+
+ case I2OEVTREG:
+ ret = i2o_cfg_evt_reg(arg, fp);
+ break;
+
+ case I2OEVTGET:
+ ret = i2o_cfg_evt_get(arg, fp);
+ break;
+
+#ifdef CONFIG_I2O_EXT_ADAPTEC
+ case I2OPASSTHRU:
+ ret = i2o_cfg_passthru(arg);
+ break;
+#endif
+
+ default:
+ osm_debug("unknown ioctl called!\n");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
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);
+ struct i2o_cfg_info *tmp =
+ (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info),
+ GFP_KERNEL);
unsigned long flags;
- if(!tmp)
+ if (!tmp)
return -ENOMEM;
- file->private_data = (void*)(i2o_cfg_info_id++);
+ file->private_data = (void *)(i2o_cfg_info_id++);
tmp->fp = file;
tmp->fasync = NULL;
- tmp->q_id = (u32)file->private_data;
+ tmp->q_id = (ulong) file->private_data;
tmp->q_len = 0;
tmp->q_in = 0;
tmp->q_out = 0;
spin_lock_irqsave(&i2o_config_lock, flags);
open_files = tmp;
spin_unlock_irqrestore(&i2o_config_lock, flags);
-
+
return 0;
}
+static int cfg_fasync(int fd, struct file *fp, int on)
+{
+ ulong id = (ulong) 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 int cfg_release(struct inode *inode, struct file *file)
{
- u32 id = (u32)file->private_data;
+ ulong id = (ulong) file->private_data;
struct i2o_cfg_info *p1, *p2;
unsigned long flags;
p1 = p2 = NULL;
spin_lock_irqsave(&i2o_config_lock, flags);
- for(p1 = open_files; p1; )
- {
- if(p1->q_id == id)
- {
+ for (p1 = open_files; p1;) {
+ if (p1->q_id == id) {
- if(p1->fasync)
+ if (p1->fasync)
cfg_fasync(-1, file, 0);
- if(p2)
+ if (p2)
p2->next = p1->next;
else
open_files = p1->next;
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 file_operations config_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .ioctl = i2o_cfg_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = i2o_cfg_compat_ioctl,
+#endif
+ .open = cfg_open,
+ .release = cfg_release,
+ .fasync = cfg_fasync,
};
static struct miscdevice i2o_miscdev = {
I2O_MINOR,
"i2octl",
&config_fops
-};
+};
-static int __init i2o_config_init(void)
+static int __init i2o_config_old_init(void)
{
- 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) < 0)
- {
- 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);
+ spin_lock_init(&i2o_config_lock);
+
+ if (misc_register(&i2o_miscdev) < 0) {
+ osm_err("can't register device.\n");
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;
}
-static void i2o_config_exit(void)
+static void i2o_config_old_exit(void)
{
misc_deregister(&i2o_miscdev);
-
- if(page_buf)
- kfree(page_buf);
- if(i2o_cfg_context != -1)
- i2o_remove_handler(&cfg_handler);
}
-
-MODULE_AUTHOR("Red Hat Software");
-MODULE_DESCRIPTION("I2O Configuration");
-MODULE_LICENSE("GPL");
-module_init(i2o_config_init);
-module_exit(i2o_config_exit);
+MODULE_AUTHOR("Red Hat Software");
git://git.onelab.eu / linux-2.6.git / blobdiff