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);
192 * Stop users being able to try and allocate arbitrary amounts
193 * of DMA space. 64K is way more than sufficient for this.
195 if (kcmd.oplen > 65536)
198 ops = memdup_user(kcmd.opbuf, kcmd.oplen);
203 * It's possible to have a _very_ large table
204 * and that the user asks for all of it at once...
206 res = kmalloc(65536, GFP_KERNEL);
212 len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536);
220 if (put_user(len, kcmd.reslen))
222 else if (len > reslen)
224 else if (copy_to_user(kcmd.resbuf, res, len))
232 static int i2o_cfg_swdl(unsigned long arg)
234 struct i2o_sw_xfer kxfer;
235 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
236 unsigned char maxfrag = 0, curfrag = 1;
237 struct i2o_dma buffer;
238 struct i2o_message *msg;
239 unsigned int status = 0, swlen = 0, fragsize = 8192;
240 struct i2o_controller *c;
242 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
245 if (get_user(swlen, kxfer.swlen) < 0)
248 if (get_user(maxfrag, kxfer.maxfrag) < 0)
251 if (get_user(curfrag, kxfer.curfrag) < 0)
254 if (curfrag == maxfrag)
255 fragsize = swlen - (maxfrag - 1) * 8192;
257 if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
260 c = i2o_find_iop(kxfer.iop);
264 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
268 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
273 if (__copy_from_user(buffer.virt, kxfer.buf, fragsize)) {
275 i2o_dma_free(&c->pdev->dev, &buffer);
279 msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
281 cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 |
283 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
284 msg->u.head[3] = cpu_to_le32(0);
286 cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer.
288 (((u32) maxfrag) << 8) | (((u32) curfrag)));
289 msg->body[1] = cpu_to_le32(swlen);
290 msg->body[2] = cpu_to_le32(kxfer.sw_id);
291 msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
292 msg->body[4] = cpu_to_le32(buffer.phys);
294 osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
295 status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
297 if (status != -ETIMEDOUT)
298 i2o_dma_free(&c->pdev->dev, &buffer);
300 if (status != I2O_POST_WAIT_OK) {
301 // it fails if you try and send frags out of order
302 // and for some yet unknown reasons too
303 osm_info("swdl failed, DetailedStatus = %d\n", status);
310 static int i2o_cfg_swul(unsigned long arg)
312 struct i2o_sw_xfer kxfer;
313 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
314 unsigned char maxfrag = 0, curfrag = 1;
315 struct i2o_dma buffer;
316 struct i2o_message *msg;
317 unsigned int status = 0, swlen = 0, fragsize = 8192;
318 struct i2o_controller *c;
321 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
324 if (get_user(swlen, kxfer.swlen) < 0)
327 if (get_user(maxfrag, kxfer.maxfrag) < 0)
330 if (get_user(curfrag, kxfer.curfrag) < 0)
333 if (curfrag == maxfrag)
334 fragsize = swlen - (maxfrag - 1) * 8192;
339 c = i2o_find_iop(kxfer.iop);
343 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
347 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
352 msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
354 cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID);
355 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
356 msg->u.head[3] = cpu_to_le32(0);
358 cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.
359 sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag);
360 msg->body[1] = cpu_to_le32(swlen);
361 msg->body[2] = cpu_to_le32(kxfer.sw_id);
362 msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
363 msg->body[4] = cpu_to_le32(buffer.phys);
365 osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
366 status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
368 if (status != I2O_POST_WAIT_OK) {
369 if (status != -ETIMEDOUT)
370 i2o_dma_free(&c->pdev->dev, &buffer);
372 osm_info("swul failed, DetailedStatus = %d\n", status);
376 if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
379 i2o_dma_free(&c->pdev->dev, &buffer);
384 static int i2o_cfg_swdel(unsigned long arg)
386 struct i2o_controller *c;
387 struct i2o_sw_xfer kxfer;
388 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
389 struct i2o_message *msg;
393 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
396 if (get_user(swlen, kxfer.swlen) < 0)
399 c = i2o_find_iop(kxfer.iop);
403 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
407 msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0);
409 cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID);
410 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
411 msg->u.head[3] = cpu_to_le32(0);
413 cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16);
414 msg->body[1] = cpu_to_le32(swlen);
415 msg->body[2] = cpu_to_le32(kxfer.sw_id);
417 token = i2o_msg_post_wait(c, msg, 10);
419 if (token != I2O_POST_WAIT_OK) {
420 osm_info("swdel failed, DetailedStatus = %d\n", token);
427 static int i2o_cfg_validate(unsigned long arg)
431 struct i2o_message *msg;
432 struct i2o_controller *c;
434 c = i2o_find_iop(iop);
438 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
442 msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
444 cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop);
445 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
446 msg->u.head[3] = cpu_to_le32(0);
448 token = i2o_msg_post_wait(c, msg, 10);
450 if (token != I2O_POST_WAIT_OK) {
451 osm_info("Can't validate configuration, ErrorStatus = %d\n",
459 static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp)
461 struct i2o_message *msg;
462 struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg;
463 struct i2o_evt_id kdesc;
464 struct i2o_controller *c;
465 struct i2o_device *d;
467 if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
471 c = i2o_find_iop(kdesc.iop);
476 d = i2o_iop_find_device(c, kdesc.tid);
480 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
484 msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
486 cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 |
488 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
489 msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data));
490 msg->body[0] = cpu_to_le32(kdesc.evt_mask);
492 i2o_msg_post(c, msg);
497 static int i2o_cfg_evt_get(unsigned long arg, struct file *fp)
499 struct i2o_cfg_info *p = NULL;
500 struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg;
501 struct i2o_evt_get kget;
504 for (p = open_files; p; p = p->next)
505 if (p->q_id == (ulong) fp->private_data)
511 memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
512 MODINC(p->q_out, I2O_EVT_Q_LEN);
513 spin_lock_irqsave(&i2o_config_lock, flags);
515 kget.pending = p->q_len;
516 kget.lost = p->q_lost;
517 spin_unlock_irqrestore(&i2o_config_lock, flags);
519 if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
525 static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
528 struct i2o_cmd_passthru32 __user *cmd;
529 struct i2o_controller *c;
530 u32 __user *user_msg;
532 u32 __user *user_reply = NULL;
536 struct i2o_dma sg_list[SG_TABLESIZE];
541 i2o_status_block *sb;
542 struct i2o_message *msg;
545 cmd = (struct i2o_cmd_passthru32 __user *)arg;
547 if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
550 user_msg = compat_ptr(i);
552 c = i2o_find_iop(iop);
554 osm_debug("controller %d not found\n", iop);
558 sb = c->status_block.virt;
560 if (get_user(size, &user_msg[0])) {
561 osm_warn("unable to get size!\n");
566 if (size > sb->inbound_frame_size) {
567 osm_warn("size of message > inbound_frame_size");
571 user_reply = &user_msg[size];
573 size <<= 2; // Convert to bytes
575 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
580 /* Copy in the user's I2O command */
581 if (copy_from_user(msg, user_msg, size)) {
582 osm_warn("unable to copy user message\n");
585 i2o_dump_message(msg);
587 if (get_user(reply_size, &user_reply[0]) < 0)
594 reply = kzalloc(reply_size, GFP_KERNEL);
596 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
601 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
603 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
605 struct sg_simple_element *sg;
607 if (sg_offset * 4 >= size) {
612 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
615 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
616 if (sg_count > SG_TABLESIZE) {
617 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
623 for (i = 0; i < sg_count; i++) {
627 if (!(sg[i].flag_count & 0x10000000
628 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
630 "%s:Bad SG element %d - not simple (%x)\n",
631 c->name, i, sg[i].flag_count);
635 sg_size = sg[i].flag_count & 0xffffff;
636 p = &(sg_list[sg_index]);
637 /* Allocate memory for the transfer */
638 if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
640 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
641 c->name, sg_size, i, sg_count);
643 goto sg_list_cleanup;
646 /* Copy in the user's SG buffer if necessary */
648 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
652 (void __user *)(unsigned long)sg[i].
653 addr_bus, sg_size)) {
655 "%s: Could not copy SG buf %d FROM user\n",
658 goto sg_list_cleanup;
662 sg[i].addr_bus = (u32) p->phys;
666 rcode = i2o_msg_post_wait(c, msg, 60);
669 reply[4] = ((u32) rcode) << 24;
670 goto sg_list_cleanup;
674 u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
675 /* Copy back the Scatter Gather buffers back to user space */
678 struct sg_simple_element *sg;
681 // re-acquire the original message to handle correctly the sg copy operation
682 memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
683 // get user msg size in u32s
684 if (get_user(size, &user_msg[0])) {
686 goto sg_list_cleanup;
690 /* Copy in the user's I2O command */
691 if (copy_from_user(rmsg, user_msg, size)) {
693 goto sg_list_cleanup;
696 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
699 sg = (struct sg_simple_element *)(rmsg + sg_offset);
700 for (j = 0; j < sg_count; j++) {
701 /* Copy out the SG list to user's buffer if necessary */
704 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
705 sg_size = sg[j].flag_count & 0xffffff;
708 ((void __user *)(u64) sg[j].addr_bus,
709 sg_list[j].virt, sg_size)) {
711 "%s: Could not copy %p TO user %x\n",
712 c->name, sg_list[j].virt,
715 goto sg_list_cleanup;
722 /* Copy back the reply to user space */
724 // we wrote our own values for context - now restore the user supplied ones
725 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
727 "%s: Could not copy message context FROM user\n",
731 if (copy_to_user(user_reply, reply, reply_size)) {
733 "%s: Could not copy reply TO user\n", c->name);
737 for (i = 0; i < sg_index; i++)
738 i2o_dma_free(&c->pdev->dev, &sg_list[i]);
748 static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
752 mutex_lock(&i2o_cfg_mutex);
755 ret = i2o_cfg_ioctl(file, cmd, arg);
758 ret = i2o_cfg_passthru32(file, cmd, arg);
764 mutex_unlock(&i2o_cfg_mutex);
770 #ifdef CONFIG_I2O_EXT_ADAPTEC
771 static int i2o_cfg_passthru(unsigned long arg)
773 struct i2o_cmd_passthru __user *cmd =
774 (struct i2o_cmd_passthru __user *)arg;
775 struct i2o_controller *c;
776 u32 __user *user_msg;
778 u32 __user *user_reply = NULL;
782 struct i2o_dma sg_list[SG_TABLESIZE];
787 i2o_status_block *sb;
788 struct i2o_message *msg;
791 if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
794 c = i2o_find_iop(iop);
796 osm_warn("controller %d not found\n", iop);
800 sb = c->status_block.virt;
802 if (get_user(size, &user_msg[0]))
806 if (size > sb->inbound_frame_size) {
807 osm_warn("size of message > inbound_frame_size");
811 user_reply = &user_msg[size];
813 size <<= 2; // Convert to bytes
815 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
820 /* Copy in the user's I2O command */
821 if (copy_from_user(msg, user_msg, size))
824 if (get_user(reply_size, &user_reply[0]) < 0)
830 reply = kzalloc(reply_size, GFP_KERNEL);
832 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
838 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
840 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
842 struct sg_simple_element *sg;
845 if (sg_offset * 4 >= size) {
850 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
853 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
854 if (sg_count > SG_TABLESIZE) {
855 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
861 for (i = 0; i < sg_count; i++) {
864 if (!(sg[i].flag_count & 0x10000000
865 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
867 "%s:Bad SG element %d - not simple (%x)\n",
868 c->name, i, sg[i].flag_count);
870 goto sg_list_cleanup;
872 sg_size = sg[i].flag_count & 0xffffff;
873 p = &(sg_list[sg_index]);
874 if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
875 /* Allocate memory for the transfer */
877 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
878 c->name, sg_size, i, sg_count);
880 goto sg_list_cleanup;
883 /* Copy in the user's SG buffer if necessary */
885 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
888 (p->virt, (void __user *)sg[i].addr_bus,
891 "%s: Could not copy SG buf %d FROM user\n",
894 goto sg_list_cleanup;
897 sg[i].addr_bus = p->phys;
901 rcode = i2o_msg_post_wait(c, msg, 60);
904 reply[4] = ((u32) rcode) << 24;
905 goto sg_list_cleanup;
909 u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
910 /* Copy back the Scatter Gather buffers back to user space */
913 struct sg_simple_element *sg;
916 // re-acquire the original message to handle correctly the sg copy operation
917 memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
918 // get user msg size in u32s
919 if (get_user(size, &user_msg[0])) {
921 goto sg_list_cleanup;
925 /* Copy in the user's I2O command */
926 if (copy_from_user(rmsg, user_msg, size)) {
928 goto sg_list_cleanup;
931 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
934 sg = (struct sg_simple_element *)(rmsg + sg_offset);
935 for (j = 0; j < sg_count; j++) {
936 /* Copy out the SG list to user's buffer if necessary */
939 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
940 sg_size = sg[j].flag_count & 0xffffff;
943 ((void __user *)sg[j].addr_bus, sg_list[j].virt,
946 "%s: Could not copy %p TO user %x\n",
947 c->name, sg_list[j].virt,
950 goto sg_list_cleanup;
957 /* Copy back the reply to user space */
959 // we wrote our own values for context - now restore the user supplied ones
960 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
962 "%s: Could not copy message context FROM user\n",
966 if (copy_to_user(user_reply, reply, reply_size)) {
968 "%s: Could not copy reply TO user\n", c->name);
973 for (i = 0; i < sg_index; i++)
974 i2o_dma_free(&c->pdev->dev, &sg_list[i]);
988 static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
992 mutex_lock(&i2o_cfg_mutex);
995 ret = i2o_cfg_getiops(arg);
999 ret = i2o_cfg_gethrt(arg);
1003 ret = i2o_cfg_getlct(arg);
1007 ret = i2o_cfg_parms(arg, I2OPARMSET);
1011 ret = i2o_cfg_parms(arg, I2OPARMGET);
1015 ret = i2o_cfg_swdl(arg);
1019 ret = i2o_cfg_swul(arg);
1023 ret = i2o_cfg_swdel(arg);
1027 ret = i2o_cfg_validate(arg);
1031 ret = i2o_cfg_evt_reg(arg, fp);
1035 ret = i2o_cfg_evt_get(arg, fp);
1038 #ifdef CONFIG_I2O_EXT_ADAPTEC
1040 ret = i2o_cfg_passthru(arg);
1045 osm_debug("unknown ioctl called!\n");
1048 mutex_unlock(&i2o_cfg_mutex);
1052 static int cfg_open(struct inode *inode, struct file *file)
1054 struct i2o_cfg_info *tmp = kmalloc(sizeof(struct i2o_cfg_info),
1056 unsigned long flags;
1061 mutex_lock(&i2o_cfg_mutex);
1062 file->private_data = (void *)(i2o_cfg_info_id++);
1065 tmp->q_id = (ulong) file->private_data;
1070 tmp->next = open_files;
1072 spin_lock_irqsave(&i2o_config_lock, flags);
1074 spin_unlock_irqrestore(&i2o_config_lock, flags);
1075 mutex_unlock(&i2o_cfg_mutex);
1080 static int cfg_fasync(int fd, struct file *fp, int on)
1082 ulong id = (ulong) fp->private_data;
1083 struct i2o_cfg_info *p;
1086 mutex_lock(&i2o_cfg_mutex);
1087 for (p = open_files; p; p = p->next)
1092 ret = fasync_helper(fd, fp, on, &p->fasync);
1093 mutex_unlock(&i2o_cfg_mutex);
1097 static int cfg_release(struct inode *inode, struct file *file)
1099 ulong id = (ulong) file->private_data;
1100 struct i2o_cfg_info *p, **q;
1101 unsigned long flags;
1103 mutex_lock(&i2o_cfg_mutex);
1104 spin_lock_irqsave(&i2o_config_lock, flags);
1105 for (q = &open_files; (p = *q) != NULL; q = &p->next) {
1106 if (p->q_id == id) {
1112 spin_unlock_irqrestore(&i2o_config_lock, flags);
1113 mutex_unlock(&i2o_cfg_mutex);
1118 static const struct file_operations config_fops = {
1119 .owner = THIS_MODULE,
1120 .llseek = no_llseek,
1121 .unlocked_ioctl = i2o_cfg_ioctl,
1122 #ifdef CONFIG_COMPAT
1123 .compat_ioctl = i2o_cfg_compat_ioctl,
1126 .release = cfg_release,
1127 .fasync = cfg_fasync,
1130 static struct miscdevice i2o_miscdev = {
1136 static int __init i2o_config_old_init(void)
1138 spin_lock_init(&i2o_config_lock);
1140 if (misc_register(&i2o_miscdev) < 0) {
1141 osm_err("can't register device.\n");
1148 static void i2o_config_old_exit(void)
1150 misc_deregister(&i2o_miscdev);
1153 MODULE_AUTHOR("Red Hat Software");