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@redhat.com>:
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/smp_lock.h>
35 #include <linux/compat.h>
37 #include <asm/uaccess.h>
39 #define SG_TABLESIZE 30
41 extern int i2o_parm_issue(struct i2o_device *, int, void *, int, void *, int);
43 static int i2o_cfg_ioctl(struct inode *, struct file *, unsigned int,
46 static spinlock_t i2o_config_lock;
48 #define MODINC(x,y) ((x) = ((x) + 1) % (y))
50 struct sg_simple_element {
57 struct fasync_struct *fasync;
58 struct i2o_evt_info event_q[I2O_EVT_Q_LEN];
59 u16 q_in; // Queue head index
60 u16 q_out; // Queue tail index
61 u16 q_len; // Queue length
62 u16 q_lost; // Number of lost events
63 ulong q_id; // Event queue ID...used as tx_context
64 struct i2o_cfg_info *next;
66 static struct i2o_cfg_info *open_files = NULL;
67 static ulong i2o_cfg_info_id = 0;
69 static int i2o_cfg_getiops(unsigned long arg)
71 struct i2o_controller *c;
72 u8 __user *user_iop_table = (void __user *)arg;
73 u8 tmp[MAX_I2O_CONTROLLERS];
76 memset(tmp, 0, MAX_I2O_CONTROLLERS);
78 list_for_each_entry(c, &i2o_controllers, list)
81 if (copy_to_user(user_iop_table, tmp, MAX_I2O_CONTROLLERS))
87 static int i2o_cfg_gethrt(unsigned long arg)
89 struct i2o_controller *c;
90 struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg;
91 struct i2o_cmd_hrtlct kcmd;
97 if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
100 if (get_user(reslen, kcmd.reslen) < 0)
103 if (kcmd.resbuf == NULL)
106 c = i2o_find_iop(kcmd.iop);
110 hrt = (i2o_hrt *) c->hrt.virt;
112 len = 8 + ((hrt->entry_len * hrt->num_entries) << 2);
114 /* We did a get user...so assuming mem is ok...is this bad? */
115 put_user(len, kcmd.reslen);
118 if (copy_to_user(kcmd.resbuf, (void *)hrt, len))
124 static int i2o_cfg_getlct(unsigned long arg)
126 struct i2o_controller *c;
127 struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg;
128 struct i2o_cmd_hrtlct kcmd;
134 if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
137 if (get_user(reslen, kcmd.reslen) < 0)
140 if (kcmd.resbuf == NULL)
143 c = i2o_find_iop(kcmd.iop);
147 lct = (i2o_lct *) c->lct;
149 len = (unsigned int)lct->table_size << 2;
150 put_user(len, kcmd.reslen);
153 else if (copy_to_user(kcmd.resbuf, lct, len))
159 static int i2o_cfg_parms(unsigned long arg, unsigned int type)
162 struct i2o_controller *c;
163 struct i2o_device *dev;
164 struct i2o_cmd_psetget __user *cmd =
165 (struct i2o_cmd_psetget __user *)arg;
166 struct i2o_cmd_psetget kcmd;
172 u32 i2o_cmd = (type == I2OPARMGET ?
173 I2O_CMD_UTIL_PARAMS_GET : I2O_CMD_UTIL_PARAMS_SET);
175 if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget)))
178 if (get_user(reslen, kcmd.reslen))
181 c = i2o_find_iop(kcmd.iop);
185 dev = i2o_iop_find_device(c, kcmd.tid);
189 ops = (u8 *) kmalloc(kcmd.oplen, GFP_KERNEL);
193 if (copy_from_user(ops, kcmd.opbuf, kcmd.oplen)) {
199 * It's possible to have a _very_ large table
200 * and that the user asks for all of it at once...
202 res = (u8 *) kmalloc(65536, GFP_KERNEL);
208 len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536);
216 put_user(len, kcmd.reslen);
219 else if (copy_to_user(kcmd.resbuf, res, len))
227 static int i2o_cfg_swdl(unsigned long arg)
229 struct i2o_sw_xfer kxfer;
230 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
231 unsigned char maxfrag = 0, curfrag = 1;
232 struct i2o_dma buffer;
233 struct i2o_message *msg;
234 unsigned int status = 0, swlen = 0, fragsize = 8192;
235 struct i2o_controller *c;
237 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
240 if (get_user(swlen, kxfer.swlen) < 0)
243 if (get_user(maxfrag, kxfer.maxfrag) < 0)
246 if (get_user(curfrag, kxfer.curfrag) < 0)
249 if (curfrag == maxfrag)
250 fragsize = swlen - (maxfrag - 1) * 8192;
252 if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
255 c = i2o_find_iop(kxfer.iop);
259 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
263 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
268 __copy_from_user(buffer.virt, kxfer.buf, fragsize);
270 msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
272 cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 |
274 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
275 msg->u.head[3] = cpu_to_le32(0);
277 cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer.
279 (((u32) maxfrag) << 8) | (((u32) curfrag)));
280 msg->body[1] = cpu_to_le32(swlen);
281 msg->body[2] = cpu_to_le32(kxfer.sw_id);
282 msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
283 msg->body[4] = cpu_to_le32(buffer.phys);
285 osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
286 status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
288 if (status != -ETIMEDOUT)
289 i2o_dma_free(&c->pdev->dev, &buffer);
291 if (status != I2O_POST_WAIT_OK) {
292 // it fails if you try and send frags out of order
293 // and for some yet unknown reasons too
294 osm_info("swdl failed, DetailedStatus = %d\n", status);
301 static int i2o_cfg_swul(unsigned long arg)
303 struct i2o_sw_xfer kxfer;
304 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
305 unsigned char maxfrag = 0, curfrag = 1;
306 struct i2o_dma buffer;
307 struct i2o_message *msg;
308 unsigned int status = 0, swlen = 0, fragsize = 8192;
309 struct i2o_controller *c;
312 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
315 if (get_user(swlen, kxfer.swlen) < 0)
318 if (get_user(maxfrag, kxfer.maxfrag) < 0)
321 if (get_user(curfrag, kxfer.curfrag) < 0)
324 if (curfrag == maxfrag)
325 fragsize = swlen - (maxfrag - 1) * 8192;
330 c = i2o_find_iop(kxfer.iop);
334 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
338 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
343 msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
345 cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID);
346 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
347 msg->u.head[3] = cpu_to_le32(0);
349 cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.
350 sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag);
351 msg->body[1] = cpu_to_le32(swlen);
352 msg->body[2] = cpu_to_le32(kxfer.sw_id);
353 msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
354 msg->body[4] = cpu_to_le32(buffer.phys);
356 osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
357 status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
359 if (status != I2O_POST_WAIT_OK) {
360 if (status != -ETIMEDOUT)
361 i2o_dma_free(&c->pdev->dev, &buffer);
363 osm_info("swul failed, DetailedStatus = %d\n", status);
367 if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
370 i2o_dma_free(&c->pdev->dev, &buffer);
379 static int i2o_cfg_swdel(unsigned long arg)
381 struct i2o_controller *c;
382 struct i2o_sw_xfer kxfer;
383 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
384 struct i2o_message *msg;
388 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
391 if (get_user(swlen, kxfer.swlen) < 0)
394 c = i2o_find_iop(kxfer.iop);
398 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
402 msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0);
404 cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID);
405 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
406 msg->u.head[3] = cpu_to_le32(0);
408 cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16);
409 msg->body[1] = cpu_to_le32(swlen);
410 msg->body[2] = cpu_to_le32(kxfer.sw_id);
412 token = i2o_msg_post_wait(c, msg, 10);
414 if (token != I2O_POST_WAIT_OK) {
415 osm_info("swdel failed, DetailedStatus = %d\n", token);
422 static int i2o_cfg_validate(unsigned long arg)
426 struct i2o_message *msg;
427 struct i2o_controller *c;
429 c = i2o_find_iop(iop);
433 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
437 msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
439 cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop);
440 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
441 msg->u.head[3] = cpu_to_le32(0);
443 token = i2o_msg_post_wait(c, msg, 10);
445 if (token != I2O_POST_WAIT_OK) {
446 osm_info("Can't validate configuration, ErrorStatus = %d\n",
454 static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp)
456 struct i2o_message *msg;
457 struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg;
458 struct i2o_evt_id kdesc;
459 struct i2o_controller *c;
460 struct i2o_device *d;
462 if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
466 c = i2o_find_iop(kdesc.iop);
471 d = i2o_iop_find_device(c, kdesc.tid);
475 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
479 msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
481 cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 |
483 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
484 msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data));
485 msg->body[0] = cpu_to_le32(kdesc.evt_mask);
487 i2o_msg_post(c, msg);
492 static int i2o_cfg_evt_get(unsigned long arg, struct file *fp)
494 struct i2o_cfg_info *p = NULL;
495 struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg;
496 struct i2o_evt_get kget;
499 for (p = open_files; p; p = p->next)
500 if (p->q_id == (ulong) fp->private_data)
506 memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
507 MODINC(p->q_out, I2O_EVT_Q_LEN);
508 spin_lock_irqsave(&i2o_config_lock, flags);
510 kget.pending = p->q_len;
511 kget.lost = p->q_lost;
512 spin_unlock_irqrestore(&i2o_config_lock, flags);
514 if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
519 #ifdef CONFIG_I2O_EXT_ADAPTEC
521 static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
524 struct i2o_cmd_passthru32 __user *cmd;
525 struct i2o_controller *c;
526 u32 __user *user_msg;
528 u32 __user *user_reply = NULL;
532 struct i2o_dma sg_list[SG_TABLESIZE];
537 i2o_status_block *sb;
538 struct i2o_message *msg;
541 cmd = (struct i2o_cmd_passthru32 __user *)arg;
543 if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
546 user_msg = compat_ptr(i);
548 c = i2o_find_iop(iop);
550 osm_debug("controller %d not found\n", iop);
554 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
556 sb = c->status_block.virt;
558 if (get_user(size, &user_msg[0])) {
559 osm_warn("unable to get size!\n");
564 if (size > sb->inbound_frame_size) {
565 osm_warn("size of message > inbound_frame_size");
569 user_reply = &user_msg[size];
571 size <<= 2; // Convert to bytes
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)
586 reply = kmalloc(reply_size, GFP_KERNEL);
588 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
592 memset(reply, 0, reply_size);
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 */
632 (&c->pdev->dev, p, sg_size,
633 PCI_DMA_BIDIRECTIONAL)) {
635 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
636 c->name, sg_size, i, sg_count);
638 goto sg_list_cleanup;
641 /* Copy in the user's SG buffer if necessary */
643 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
647 (void __user *)(unsigned long)sg[i].
648 addr_bus, sg_size)) {
650 "%s: Could not copy SG buf %d FROM user\n",
653 goto sg_list_cleanup;
657 sg[i].addr_bus = (u32) p->phys;
661 rcode = i2o_msg_post_wait(c, msg, 60);
663 reply[4] = ((u32) rcode) << 24;
664 goto sg_list_cleanup;
668 u32 msg[I2O_OUTBOUND_MSG_FRAME_SIZE];
669 /* Copy back the Scatter Gather buffers back to user space */
672 struct sg_simple_element *sg;
675 // re-acquire the original message to handle correctly the sg copy operation
676 memset(&msg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
677 // get user msg size in u32s
678 if (get_user(size, &user_msg[0])) {
680 goto sg_list_cleanup;
684 /* Copy in the user's I2O command */
685 if (copy_from_user(msg, user_msg, size)) {
687 goto sg_list_cleanup;
690 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
693 sg = (struct sg_simple_element *)(msg + sg_offset);
694 for (j = 0; j < sg_count; j++) {
695 /* Copy out the SG list to user's buffer if necessary */
698 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
699 sg_size = sg[j].flag_count & 0xffffff;
702 ((void __user *)(u64) sg[j].addr_bus,
703 sg_list[j].virt, sg_size)) {
705 "%s: Could not copy %p TO user %x\n",
706 c->name, sg_list[j].virt,
709 goto sg_list_cleanup;
716 /* Copy back the reply to user space */
718 // we wrote our own values for context - now restore the user supplied ones
719 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
721 "%s: Could not copy message context FROM user\n",
724 goto sg_list_cleanup;
726 if (copy_to_user(user_reply, reply, reply_size)) {
728 "%s: Could not copy reply TO user\n", c->name);
733 for (i = 0; i < sg_index; i++)
734 i2o_dma_free(&c->pdev->dev, &sg_list[i]);
741 static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
748 ret = i2o_cfg_ioctl(NULL, file, cmd, arg);
751 ret = i2o_cfg_passthru32(file, cmd, arg);
763 static int i2o_cfg_passthru(unsigned long arg)
765 struct i2o_cmd_passthru __user *cmd =
766 (struct i2o_cmd_passthru __user *)arg;
767 struct i2o_controller *c;
768 u32 __user *user_msg;
770 u32 __user *user_reply = NULL;
774 void *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 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
795 sb = c->status_block.virt;
797 if (get_user(size, &user_msg[0]))
801 if (size > sb->inbound_frame_size) {
802 osm_warn("size of message > inbound_frame_size");
806 user_reply = &user_msg[size];
808 size <<= 2; // Convert to bytes
810 /* Copy in the user's I2O command */
811 if (copy_from_user(msg, user_msg, size))
814 if (get_user(reply_size, &user_reply[0]) < 0)
820 reply = kmalloc(reply_size, GFP_KERNEL);
822 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
826 memset(reply, 0, reply_size);
828 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
830 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
832 struct sg_simple_element *sg;
834 if (sg_offset * 4 >= size) {
839 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
842 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
843 if (sg_count > SG_TABLESIZE) {
844 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
850 for (i = 0; i < sg_count; i++) {
853 if (!(sg[i].flag_count & 0x10000000
854 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
856 "%s:Bad SG element %d - not simple (%x)\n",
857 c->name, i, sg[i].flag_count);
859 goto sg_list_cleanup;
861 sg_size = sg[i].flag_count & 0xffffff;
862 /* Allocate memory for the transfer */
863 p = kmalloc(sg_size, GFP_KERNEL);
866 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
867 c->name, sg_size, i, sg_count);
869 goto sg_list_cleanup;
871 sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
872 /* Copy in the user's SG buffer if necessary */
874 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
877 (p, (void __user *)sg[i].addr_bus,
880 "%s: Could not copy SG buf %d FROM user\n",
883 goto sg_list_cleanup;
887 sg[i].addr_bus = virt_to_bus(p);
891 rcode = i2o_msg_post_wait(c, msg, 60);
893 reply[4] = ((u32) rcode) << 24;
894 goto sg_list_cleanup;
899 /* Copy back the Scatter Gather buffers back to user space */
902 struct sg_simple_element *sg;
905 // re-acquire the original message to handle correctly the sg copy operation
906 memset(&msg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
907 // get user msg size in u32s
908 if (get_user(size, &user_msg[0])) {
910 goto sg_list_cleanup;
914 /* Copy in the user's I2O command */
915 if (copy_from_user(msg, user_msg, size)) {
917 goto sg_list_cleanup;
920 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
923 sg = (struct sg_simple_element *)(msg + sg_offset);
924 for (j = 0; j < sg_count; j++) {
925 /* Copy out the SG list to user's buffer if necessary */
928 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
929 sg_size = sg[j].flag_count & 0xffffff;
932 ((void __user *)sg[j].addr_bus, sg_list[j],
935 "%s: Could not copy %p TO user %x\n",
939 goto sg_list_cleanup;
946 /* Copy back the reply to user space */
948 // we wrote our own values for context - now restore the user supplied ones
949 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
951 "%s: Could not copy message context FROM user\n",
955 if (copy_to_user(user_reply, reply, reply_size)) {
957 "%s: Could not copy reply TO user\n", c->name);
962 for (i = 0; i < sg_index; i++)
974 static int i2o_cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
981 ret = i2o_cfg_getiops(arg);
985 ret = i2o_cfg_gethrt(arg);
989 ret = i2o_cfg_getlct(arg);
993 ret = i2o_cfg_parms(arg, I2OPARMSET);
997 ret = i2o_cfg_parms(arg, I2OPARMGET);
1001 ret = i2o_cfg_swdl(arg);
1005 ret = i2o_cfg_swul(arg);
1009 ret = i2o_cfg_swdel(arg);
1013 ret = i2o_cfg_validate(arg);
1017 ret = i2o_cfg_evt_reg(arg, fp);
1021 ret = i2o_cfg_evt_get(arg, fp);
1024 #ifdef CONFIG_I2O_EXT_ADAPTEC
1026 ret = i2o_cfg_passthru(arg);
1031 osm_debug("unknown ioctl called!\n");
1038 static int cfg_open(struct inode *inode, struct file *file)
1040 struct i2o_cfg_info *tmp =
1041 (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info),
1043 unsigned long flags;
1048 file->private_data = (void *)(i2o_cfg_info_id++);
1051 tmp->q_id = (ulong) file->private_data;
1056 tmp->next = open_files;
1058 spin_lock_irqsave(&i2o_config_lock, flags);
1060 spin_unlock_irqrestore(&i2o_config_lock, flags);
1065 static int cfg_fasync(int fd, struct file *fp, int on)
1067 ulong id = (ulong) fp->private_data;
1068 struct i2o_cfg_info *p;
1070 for (p = open_files; p; p = p->next)
1077 return fasync_helper(fd, fp, on, &p->fasync);
1080 static int cfg_release(struct inode *inode, struct file *file)
1082 ulong id = (ulong) file->private_data;
1083 struct i2o_cfg_info *p1, *p2;
1084 unsigned long flags;
1089 spin_lock_irqsave(&i2o_config_lock, flags);
1090 for (p1 = open_files; p1;) {
1091 if (p1->q_id == id) {
1094 cfg_fasync(-1, file, 0);
1096 p2->next = p1->next;
1098 open_files = p1->next;
1106 spin_unlock_irqrestore(&i2o_config_lock, flags);
1112 static struct file_operations config_fops = {
1113 .owner = THIS_MODULE,
1114 .llseek = no_llseek,
1115 .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");