2 * I2O Configuration Interface Driver
4 * (C) Copyright 1999-2002 Red Hat
6 * Written by Alan Cox, Building Number Three Ltd
9 * Deepak Saxena (04/20/1999):
10 * Added basic ioctl() support
11 * Deepak Saxena (06/07/1999):
12 * Added software download ioctl (still testing)
13 * Auvo Häkkinen (09/10/1999):
14 * Changes to i2o_cfg_reply(), ioctl_parms()
15 * Added ioct_validate()
16 * Taneli Vähäkangas (09/30/1999):
18 * Taneli Vähäkangas (10/04/1999):
19 * Changed ioctl_swdl(), implemented ioctl_swul() and ioctl_swdel()
20 * Deepak Saxena (11/18/1999):
21 * Added event managmenet support
22 * Alan Cox <alan@lxorguk.ukuu.org.uk>:
23 * 2.4 rewrite ported to 2.5
24 * Markus Lidel <Markus.Lidel@shadowconnect.com>:
25 * Added pass-thru support for Adaptec's raidutils
27 * This program is free software; you can redistribute it and/or
28 * modify it under the terms of the GNU General Public License
29 * as published by the Free Software Foundation; either version
30 * 2 of the License, or (at your option) any later version.
33 #include <linux/miscdevice.h>
34 #include <linux/mutex.h>
35 #include <linux/compat.h>
36 #include <linux/slab.h>
38 #include <asm/uaccess.h>
42 #define SG_TABLESIZE 30
44 static DEFINE_MUTEX(i2o_cfg_mutex);
45 static long i2o_cfg_ioctl(struct file *, unsigned int, unsigned long);
47 static spinlock_t i2o_config_lock;
49 #define MODINC(x,y) ((x) = ((x) + 1) % (y))
51 struct sg_simple_element {
58 struct fasync_struct *fasync;
59 struct i2o_evt_info event_q[I2O_EVT_Q_LEN];
60 u16 q_in; // Queue head index
61 u16 q_out; // Queue tail index
62 u16 q_len; // Queue length
63 u16 q_lost; // Number of lost events
64 ulong q_id; // Event queue ID...used as tx_context
65 struct i2o_cfg_info *next;
67 static struct i2o_cfg_info *open_files = NULL;
68 static ulong i2o_cfg_info_id = 0;
70 static int i2o_cfg_getiops(unsigned long arg)
72 struct i2o_controller *c;
73 u8 __user *user_iop_table = (void __user *)arg;
74 u8 tmp[MAX_I2O_CONTROLLERS];
77 memset(tmp, 0, MAX_I2O_CONTROLLERS);
79 list_for_each_entry(c, &i2o_controllers, list)
82 if (copy_to_user(user_iop_table, tmp, MAX_I2O_CONTROLLERS))
88 static int i2o_cfg_gethrt(unsigned long arg)
90 struct i2o_controller *c;
91 struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg;
92 struct i2o_cmd_hrtlct kcmd;
98 if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
101 if (get_user(reslen, kcmd.reslen) < 0)
104 if (kcmd.resbuf == NULL)
107 c = i2o_find_iop(kcmd.iop);
111 hrt = (i2o_hrt *) c->hrt.virt;
113 len = 8 + ((hrt->entry_len * hrt->num_entries) << 2);
115 if (put_user(len, kcmd.reslen))
117 else if (len > reslen)
119 else if (copy_to_user(kcmd.resbuf, (void *)hrt, len))
125 static int i2o_cfg_getlct(unsigned long arg)
127 struct i2o_controller *c;
128 struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg;
129 struct i2o_cmd_hrtlct kcmd;
135 if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
138 if (get_user(reslen, kcmd.reslen) < 0)
141 if (kcmd.resbuf == NULL)
144 c = i2o_find_iop(kcmd.iop);
148 lct = (i2o_lct *) c->lct;
150 len = (unsigned int)lct->table_size << 2;
151 if (put_user(len, kcmd.reslen))
153 else if (len > reslen)
155 else if (copy_to_user(kcmd.resbuf, lct, len))
161 static int i2o_cfg_parms(unsigned long arg, unsigned int type)
164 struct i2o_controller *c;
165 struct i2o_device *dev;
166 struct i2o_cmd_psetget __user *cmd =
167 (struct i2o_cmd_psetget __user *)arg;
168 struct i2o_cmd_psetget kcmd;
174 u32 i2o_cmd = (type == I2OPARMGET ?
175 I2O_CMD_UTIL_PARAMS_GET : I2O_CMD_UTIL_PARAMS_SET);
177 if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget)))
180 if (get_user(reslen, kcmd.reslen))
183 c = i2o_find_iop(kcmd.iop);
187 dev = i2o_iop_find_device(c, kcmd.tid);
191 ops = memdup_user(kcmd.opbuf, kcmd.oplen);
196 * It's possible to have a _very_ large table
197 * and that the user asks for all of it at once...
199 res = kmalloc(65536, GFP_KERNEL);
205 len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536);
213 if (put_user(len, kcmd.reslen))
215 else if (len > reslen)
217 else if (copy_to_user(kcmd.resbuf, res, len))
225 static int i2o_cfg_swdl(unsigned long arg)
227 struct i2o_sw_xfer kxfer;
228 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
229 unsigned char maxfrag = 0, curfrag = 1;
230 struct i2o_dma buffer;
231 struct i2o_message *msg;
232 unsigned int status = 0, swlen = 0, fragsize = 8192;
233 struct i2o_controller *c;
235 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
238 if (get_user(swlen, kxfer.swlen) < 0)
241 if (get_user(maxfrag, kxfer.maxfrag) < 0)
244 if (get_user(curfrag, kxfer.curfrag) < 0)
247 if (curfrag == maxfrag)
248 fragsize = swlen - (maxfrag - 1) * 8192;
250 if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
253 c = i2o_find_iop(kxfer.iop);
257 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
261 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
266 if (__copy_from_user(buffer.virt, kxfer.buf, fragsize)) {
268 i2o_dma_free(&c->pdev->dev, &buffer);
272 msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
274 cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 |
276 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
277 msg->u.head[3] = cpu_to_le32(0);
279 cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer.
281 (((u32) maxfrag) << 8) | (((u32) curfrag)));
282 msg->body[1] = cpu_to_le32(swlen);
283 msg->body[2] = cpu_to_le32(kxfer.sw_id);
284 msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
285 msg->body[4] = cpu_to_le32(buffer.phys);
287 osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
288 status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
290 if (status != -ETIMEDOUT)
291 i2o_dma_free(&c->pdev->dev, &buffer);
293 if (status != I2O_POST_WAIT_OK) {
294 // it fails if you try and send frags out of order
295 // and for some yet unknown reasons too
296 osm_info("swdl failed, DetailedStatus = %d\n", status);
303 static int i2o_cfg_swul(unsigned long arg)
305 struct i2o_sw_xfer kxfer;
306 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
307 unsigned char maxfrag = 0, curfrag = 1;
308 struct i2o_dma buffer;
309 struct i2o_message *msg;
310 unsigned int status = 0, swlen = 0, fragsize = 8192;
311 struct i2o_controller *c;
314 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
317 if (get_user(swlen, kxfer.swlen) < 0)
320 if (get_user(maxfrag, kxfer.maxfrag) < 0)
323 if (get_user(curfrag, kxfer.curfrag) < 0)
326 if (curfrag == maxfrag)
327 fragsize = swlen - (maxfrag - 1) * 8192;
332 c = i2o_find_iop(kxfer.iop);
336 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
340 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
345 msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
347 cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID);
348 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
349 msg->u.head[3] = cpu_to_le32(0);
351 cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.
352 sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag);
353 msg->body[1] = cpu_to_le32(swlen);
354 msg->body[2] = cpu_to_le32(kxfer.sw_id);
355 msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
356 msg->body[4] = cpu_to_le32(buffer.phys);
358 osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
359 status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
361 if (status != I2O_POST_WAIT_OK) {
362 if (status != -ETIMEDOUT)
363 i2o_dma_free(&c->pdev->dev, &buffer);
365 osm_info("swul failed, DetailedStatus = %d\n", status);
369 if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
372 i2o_dma_free(&c->pdev->dev, &buffer);
377 static int i2o_cfg_swdel(unsigned long arg)
379 struct i2o_controller *c;
380 struct i2o_sw_xfer kxfer;
381 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
382 struct i2o_message *msg;
386 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
389 if (get_user(swlen, kxfer.swlen) < 0)
392 c = i2o_find_iop(kxfer.iop);
396 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
400 msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0);
402 cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID);
403 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
404 msg->u.head[3] = cpu_to_le32(0);
406 cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16);
407 msg->body[1] = cpu_to_le32(swlen);
408 msg->body[2] = cpu_to_le32(kxfer.sw_id);
410 token = i2o_msg_post_wait(c, msg, 10);
412 if (token != I2O_POST_WAIT_OK) {
413 osm_info("swdel failed, DetailedStatus = %d\n", token);
420 static int i2o_cfg_validate(unsigned long arg)
424 struct i2o_message *msg;
425 struct i2o_controller *c;
427 c = i2o_find_iop(iop);
431 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
435 msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
437 cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop);
438 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
439 msg->u.head[3] = cpu_to_le32(0);
441 token = i2o_msg_post_wait(c, msg, 10);
443 if (token != I2O_POST_WAIT_OK) {
444 osm_info("Can't validate configuration, ErrorStatus = %d\n",
452 static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp)
454 struct i2o_message *msg;
455 struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg;
456 struct i2o_evt_id kdesc;
457 struct i2o_controller *c;
458 struct i2o_device *d;
460 if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
464 c = i2o_find_iop(kdesc.iop);
469 d = i2o_iop_find_device(c, kdesc.tid);
473 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
477 msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
479 cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 |
481 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
482 msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data));
483 msg->body[0] = cpu_to_le32(kdesc.evt_mask);
485 i2o_msg_post(c, msg);
490 static int i2o_cfg_evt_get(unsigned long arg, struct file *fp)
492 struct i2o_cfg_info *p = NULL;
493 struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg;
494 struct i2o_evt_get kget;
497 for (p = open_files; p; p = p->next)
498 if (p->q_id == (ulong) fp->private_data)
504 memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
505 MODINC(p->q_out, I2O_EVT_Q_LEN);
506 spin_lock_irqsave(&i2o_config_lock, flags);
508 kget.pending = p->q_len;
509 kget.lost = p->q_lost;
510 spin_unlock_irqrestore(&i2o_config_lock, flags);
512 if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
518 static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
521 struct i2o_cmd_passthru32 __user *cmd;
522 struct i2o_controller *c;
523 u32 __user *user_msg;
525 u32 __user *user_reply = NULL;
529 struct i2o_dma sg_list[SG_TABLESIZE];
534 i2o_status_block *sb;
535 struct i2o_message *msg;
538 cmd = (struct i2o_cmd_passthru32 __user *)arg;
540 if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
543 user_msg = compat_ptr(i);
545 c = i2o_find_iop(iop);
547 osm_debug("controller %d not found\n", iop);
551 sb = c->status_block.virt;
553 if (get_user(size, &user_msg[0])) {
554 osm_warn("unable to get size!\n");
559 if (size > sb->inbound_frame_size) {
560 osm_warn("size of message > inbound_frame_size");
564 user_reply = &user_msg[size];
566 size <<= 2; // Convert to bytes
568 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
573 /* Copy in the user's I2O command */
574 if (copy_from_user(msg, user_msg, size)) {
575 osm_warn("unable to copy user message\n");
578 i2o_dump_message(msg);
580 if (get_user(reply_size, &user_reply[0]) < 0)
587 reply = kzalloc(reply_size, GFP_KERNEL);
589 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
594 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
596 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
598 struct sg_simple_element *sg;
600 if (sg_offset * 4 >= size) {
605 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
608 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
609 if (sg_count > SG_TABLESIZE) {
610 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
616 for (i = 0; i < sg_count; i++) {
620 if (!(sg[i].flag_count & 0x10000000
621 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
623 "%s:Bad SG element %d - not simple (%x)\n",
624 c->name, i, sg[i].flag_count);
628 sg_size = sg[i].flag_count & 0xffffff;
629 p = &(sg_list[sg_index]);
630 /* Allocate memory for the transfer */
631 if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
633 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
634 c->name, sg_size, i, sg_count);
636 goto sg_list_cleanup;
639 /* Copy in the user's SG buffer if necessary */
641 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
645 (void __user *)(unsigned long)sg[i].
646 addr_bus, sg_size)) {
648 "%s: Could not copy SG buf %d FROM user\n",
651 goto sg_list_cleanup;
655 sg[i].addr_bus = (u32) p->phys;
659 rcode = i2o_msg_post_wait(c, msg, 60);
662 reply[4] = ((u32) rcode) << 24;
663 goto sg_list_cleanup;
667 u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
668 /* Copy back the Scatter Gather buffers back to user space */
671 struct sg_simple_element *sg;
674 // re-acquire the original message to handle correctly the sg copy operation
675 memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
676 // get user msg size in u32s
677 if (get_user(size, &user_msg[0])) {
679 goto sg_list_cleanup;
683 /* Copy in the user's I2O command */
684 if (copy_from_user(rmsg, user_msg, size)) {
686 goto sg_list_cleanup;
689 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
692 sg = (struct sg_simple_element *)(rmsg + sg_offset);
693 for (j = 0; j < sg_count; j++) {
694 /* Copy out the SG list to user's buffer if necessary */
697 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
698 sg_size = sg[j].flag_count & 0xffffff;
701 ((void __user *)(u64) sg[j].addr_bus,
702 sg_list[j].virt, sg_size)) {
704 "%s: Could not copy %p TO user %x\n",
705 c->name, sg_list[j].virt,
708 goto sg_list_cleanup;
715 /* Copy back the reply to user space */
717 // we wrote our own values for context - now restore the user supplied ones
718 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
720 "%s: Could not copy message context FROM user\n",
724 if (copy_to_user(user_reply, reply, reply_size)) {
726 "%s: Could not copy reply TO user\n", c->name);
730 for (i = 0; i < sg_index; i++)
731 i2o_dma_free(&c->pdev->dev, &sg_list[i]);
741 static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
745 mutex_lock(&i2o_cfg_mutex);
748 ret = i2o_cfg_ioctl(file, cmd, arg);
751 ret = i2o_cfg_passthru32(file, cmd, arg);
757 mutex_unlock(&i2o_cfg_mutex);
763 #ifdef CONFIG_I2O_EXT_ADAPTEC
764 static int i2o_cfg_passthru(unsigned long arg)
766 struct i2o_cmd_passthru __user *cmd =
767 (struct i2o_cmd_passthru __user *)arg;
768 struct i2o_controller *c;
769 u32 __user *user_msg;
771 u32 __user *user_reply = NULL;
775 struct i2o_dma sg_list[SG_TABLESIZE];
780 i2o_status_block *sb;
781 struct i2o_message *msg;
784 if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
787 c = i2o_find_iop(iop);
789 osm_warn("controller %d not found\n", iop);
793 sb = c->status_block.virt;
795 if (get_user(size, &user_msg[0]))
799 if (size > sb->inbound_frame_size) {
800 osm_warn("size of message > inbound_frame_size");
804 user_reply = &user_msg[size];
806 size <<= 2; // Convert to bytes
808 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
813 /* Copy in the user's I2O command */
814 if (copy_from_user(msg, user_msg, size))
817 if (get_user(reply_size, &user_reply[0]) < 0)
823 reply = kzalloc(reply_size, GFP_KERNEL);
825 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
831 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
833 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
835 struct sg_simple_element *sg;
838 if (sg_offset * 4 >= size) {
843 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
846 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
847 if (sg_count > SG_TABLESIZE) {
848 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
854 for (i = 0; i < sg_count; i++) {
857 if (!(sg[i].flag_count & 0x10000000
858 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
860 "%s:Bad SG element %d - not simple (%x)\n",
861 c->name, i, sg[i].flag_count);
863 goto sg_list_cleanup;
865 sg_size = sg[i].flag_count & 0xffffff;
866 p = &(sg_list[sg_index]);
867 if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
868 /* Allocate memory for the transfer */
870 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
871 c->name, sg_size, i, sg_count);
873 goto sg_list_cleanup;
876 /* Copy in the user's SG buffer if necessary */
878 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
881 (p->virt, (void __user *)sg[i].addr_bus,
884 "%s: Could not copy SG buf %d FROM user\n",
887 goto sg_list_cleanup;
890 sg[i].addr_bus = p->phys;
894 rcode = i2o_msg_post_wait(c, msg, 60);
897 reply[4] = ((u32) rcode) << 24;
898 goto sg_list_cleanup;
902 u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
903 /* Copy back the Scatter Gather buffers back to user space */
906 struct sg_simple_element *sg;
909 // re-acquire the original message to handle correctly the sg copy operation
910 memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
911 // get user msg size in u32s
912 if (get_user(size, &user_msg[0])) {
914 goto sg_list_cleanup;
918 /* Copy in the user's I2O command */
919 if (copy_from_user(rmsg, user_msg, size)) {
921 goto sg_list_cleanup;
924 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
927 sg = (struct sg_simple_element *)(rmsg + sg_offset);
928 for (j = 0; j < sg_count; j++) {
929 /* Copy out the SG list to user's buffer if necessary */
932 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
933 sg_size = sg[j].flag_count & 0xffffff;
936 ((void __user *)sg[j].addr_bus, sg_list[j].virt,
939 "%s: Could not copy %p TO user %x\n",
940 c->name, sg_list[j].virt,
943 goto sg_list_cleanup;
950 /* Copy back the reply to user space */
952 // we wrote our own values for context - now restore the user supplied ones
953 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
955 "%s: Could not copy message context FROM user\n",
959 if (copy_to_user(user_reply, reply, reply_size)) {
961 "%s: Could not copy reply TO user\n", c->name);
966 for (i = 0; i < sg_index; i++)
967 i2o_dma_free(&c->pdev->dev, &sg_list[i]);
981 static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
985 mutex_lock(&i2o_cfg_mutex);
988 ret = i2o_cfg_getiops(arg);
992 ret = i2o_cfg_gethrt(arg);
996 ret = i2o_cfg_getlct(arg);
1000 ret = i2o_cfg_parms(arg, I2OPARMSET);
1004 ret = i2o_cfg_parms(arg, I2OPARMGET);
1008 ret = i2o_cfg_swdl(arg);
1012 ret = i2o_cfg_swul(arg);
1016 ret = i2o_cfg_swdel(arg);
1020 ret = i2o_cfg_validate(arg);
1024 ret = i2o_cfg_evt_reg(arg, fp);
1028 ret = i2o_cfg_evt_get(arg, fp);
1031 #ifdef CONFIG_I2O_EXT_ADAPTEC
1033 ret = i2o_cfg_passthru(arg);
1038 osm_debug("unknown ioctl called!\n");
1041 mutex_unlock(&i2o_cfg_mutex);
1045 static int cfg_open(struct inode *inode, struct file *file)
1047 struct i2o_cfg_info *tmp =
1048 (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info),
1050 unsigned long flags;
1055 mutex_lock(&i2o_cfg_mutex);
1056 file->private_data = (void *)(i2o_cfg_info_id++);
1059 tmp->q_id = (ulong) file->private_data;
1064 tmp->next = open_files;
1066 spin_lock_irqsave(&i2o_config_lock, flags);
1068 spin_unlock_irqrestore(&i2o_config_lock, flags);
1069 mutex_unlock(&i2o_cfg_mutex);
1074 static int cfg_fasync(int fd, struct file *fp, int on)
1076 ulong id = (ulong) fp->private_data;
1077 struct i2o_cfg_info *p;
1080 mutex_lock(&i2o_cfg_mutex);
1081 for (p = open_files; p; p = p->next)
1086 ret = fasync_helper(fd, fp, on, &p->fasync);
1087 mutex_unlock(&i2o_cfg_mutex);
1091 static int cfg_release(struct inode *inode, struct file *file)
1093 ulong id = (ulong) file->private_data;
1094 struct i2o_cfg_info *p, **q;
1095 unsigned long flags;
1097 mutex_lock(&i2o_cfg_mutex);
1098 spin_lock_irqsave(&i2o_config_lock, flags);
1099 for (q = &open_files; (p = *q) != NULL; q = &p->next) {
1100 if (p->q_id == id) {
1106 spin_unlock_irqrestore(&i2o_config_lock, flags);
1107 mutex_unlock(&i2o_cfg_mutex);
1112 static const struct file_operations config_fops = {
1113 .owner = THIS_MODULE,
1114 .llseek = no_llseek,
1115 .unlocked_ioctl = i2o_cfg_ioctl,
1116 #ifdef CONFIG_COMPAT
1117 .compat_ioctl = i2o_cfg_compat_ioctl,
1120 .release = cfg_release,
1121 .fasync = cfg_fasync,
1124 static struct miscdevice i2o_miscdev = {
1130 static int __init i2o_config_old_init(void)
1132 spin_lock_init(&i2o_config_lock);
1134 if (misc_register(&i2o_miscdev) < 0) {
1135 osm_err("can't register device.\n");
1142 static void i2o_config_old_exit(void)
1144 misc_deregister(&i2o_miscdev);
1147 MODULE_AUTHOR("Red Hat Software");