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>
41 #define SG_TABLESIZE 30
43 static int i2o_cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
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 __iomem *msg;
235 unsigned int status = 0, swlen = 0, fragsize = 8192;
236 struct i2o_controller *c;
238 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
241 if (get_user(swlen, kxfer.swlen) < 0)
244 if (get_user(maxfrag, kxfer.maxfrag) < 0)
247 if (get_user(curfrag, kxfer.curfrag) < 0)
250 if (curfrag == maxfrag)
251 fragsize = swlen - (maxfrag - 1) * 8192;
253 if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
256 c = i2o_find_iop(kxfer.iop);
260 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
261 if (m == I2O_QUEUE_EMPTY)
264 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
269 __copy_from_user(buffer.virt, kxfer.buf, fragsize);
271 writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_7, &msg->u.head[0]);
272 writel(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 | ADAPTER_TID,
274 writel(i2o_config_driver.context, &msg->u.head[2]);
275 writel(0, &msg->u.head[3]);
276 writel((((u32) kxfer.flags) << 24) | (((u32) kxfer.sw_type) << 16) |
277 (((u32) maxfrag) << 8) | (((u32) curfrag)), &msg->body[0]);
278 writel(swlen, &msg->body[1]);
279 writel(kxfer.sw_id, &msg->body[2]);
280 writel(0xD0000000 | fragsize, &msg->body[3]);
281 writel(buffer.phys, &msg->body[4]);
283 osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
284 status = i2o_msg_post_wait_mem(c, m, 60, &buffer);
286 if (status != -ETIMEDOUT)
287 i2o_dma_free(&c->pdev->dev, &buffer);
289 if (status != I2O_POST_WAIT_OK) {
290 // it fails if you try and send frags out of order
291 // and for some yet unknown reasons too
292 osm_info("swdl failed, DetailedStatus = %d\n", status);
299 static int i2o_cfg_swul(unsigned long arg)
301 struct i2o_sw_xfer kxfer;
302 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
303 unsigned char maxfrag = 0, curfrag = 1;
304 struct i2o_dma buffer;
305 struct i2o_message __iomem *msg;
307 unsigned int status = 0, swlen = 0, fragsize = 8192;
308 struct i2o_controller *c;
311 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
314 if (get_user(swlen, kxfer.swlen) < 0)
317 if (get_user(maxfrag, kxfer.maxfrag) < 0)
320 if (get_user(curfrag, kxfer.curfrag) < 0)
323 if (curfrag == maxfrag)
324 fragsize = swlen - (maxfrag - 1) * 8192;
329 c = i2o_find_iop(kxfer.iop);
333 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
334 if (m == I2O_QUEUE_EMPTY)
337 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
342 writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_7, &msg->u.head[0]);
343 writel(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID,
345 writel(i2o_config_driver.context, &msg->u.head[2]);
346 writel(0, &msg->u.head[3]);
347 writel((u32) kxfer.flags << 24 | (u32) kxfer.
348 sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag,
350 writel(swlen, &msg->body[1]);
351 writel(kxfer.sw_id, &msg->body[2]);
352 writel(0xD0000000 | fragsize, &msg->body[3]);
353 writel(buffer.phys, &msg->body[4]);
355 osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
356 status = i2o_msg_post_wait_mem(c, m, 60, &buffer);
358 if (status != I2O_POST_WAIT_OK) {
359 if (status != -ETIMEDOUT)
360 i2o_dma_free(&c->pdev->dev, &buffer);
362 osm_info("swul failed, DetailedStatus = %d\n", status);
366 if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
369 i2o_dma_free(&c->pdev->dev, &buffer);
378 static int i2o_cfg_swdel(unsigned long arg)
380 struct i2o_controller *c;
381 struct i2o_sw_xfer kxfer;
382 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
383 struct i2o_message __iomem *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 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
399 if (m == I2O_QUEUE_EMPTY)
402 writel(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
403 writel(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID,
405 writel(i2o_config_driver.context, &msg->u.head[2]);
406 writel(0, &msg->u.head[3]);
407 writel((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16,
409 writel(swlen, &msg->body[1]);
410 writel(kxfer.sw_id, &msg->body[2]);
412 token = i2o_msg_post_wait(c, m, 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 __iomem *msg;
428 struct i2o_controller *c;
430 c = i2o_find_iop(iop);
434 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
435 if (m == I2O_QUEUE_EMPTY)
438 writel(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
439 writel(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop,
441 writel(i2o_config_driver.context, &msg->u.head[2]);
442 writel(0, &msg->u.head[3]);
444 token = i2o_msg_post_wait(c, m, 10);
446 if (token != I2O_POST_WAIT_OK) {
447 osm_info("Can't validate configuration, ErrorStatus = %d\n",
455 static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp)
457 struct i2o_message __iomem *msg;
459 struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg;
460 struct i2o_evt_id kdesc;
461 struct i2o_controller *c;
462 struct i2o_device *d;
464 if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
468 c = i2o_find_iop(kdesc.iop);
473 d = i2o_iop_find_device(c, kdesc.tid);
477 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
478 if (m == I2O_QUEUE_EMPTY)
481 writel(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
482 writel(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | kdesc.tid,
484 writel(i2o_config_driver.context, &msg->u.head[2]);
485 writel(i2o_cntxt_list_add(c, fp->private_data), &msg->u.head[3]);
486 writel(kdesc.evt_mask, &msg->body[0]);
493 static int i2o_cfg_evt_get(unsigned long arg, struct file *fp)
495 struct i2o_cfg_info *p = NULL;
496 struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg;
497 struct i2o_evt_get kget;
500 for (p = open_files; p; p = p->next)
501 if (p->q_id == (ulong) fp->private_data)
507 memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
508 MODINC(p->q_out, I2O_EVT_Q_LEN);
509 spin_lock_irqsave(&i2o_config_lock, flags);
511 kget.pending = p->q_len;
512 kget.lost = p->q_lost;
513 spin_unlock_irqrestore(&i2o_config_lock, flags);
515 if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
520 #ifdef CONFIG_I2O_EXT_ADAPTEC
522 static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
525 struct i2o_cmd_passthru32 __user *cmd;
526 struct i2o_controller *c;
527 u32 __user *user_msg;
529 u32 __user *user_reply = NULL;
533 struct i2o_dma sg_list[SG_TABLESIZE];
538 i2o_status_block *sb;
539 struct i2o_message *msg;
543 cmd = (struct i2o_cmd_passthru32 __user *)arg;
545 if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
548 user_msg = compat_ptr(i);
550 c = i2o_find_iop(iop);
552 osm_debug("controller %d not found\n", iop);
556 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
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 /* Copy in the user's I2O command */
576 if (copy_from_user(msg, user_msg, size)) {
577 osm_warn("unable to copy user message\n");
580 i2o_dump_message(msg);
582 if (get_user(reply_size, &user_reply[0]) < 0)
588 reply = kmalloc(reply_size, GFP_KERNEL);
590 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
594 memset(reply, 0, reply_size);
596 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
598 writel(i2o_config_driver.context, &msg->u.s.icntxt);
599 writel(i2o_cntxt_list_add(c, reply), &msg->u.s.tcntxt);
601 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
603 struct sg_simple_element *sg;
605 if (sg_offset * 4 >= size) {
610 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
613 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
614 if (sg_count > SG_TABLESIZE) {
615 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
621 for (i = 0; i < sg_count; i++) {
625 if (!(sg[i].flag_count & 0x10000000
626 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
628 "%s:Bad SG element %d - not simple (%x)\n",
629 c->name, i, sg[i].flag_count);
633 sg_size = sg[i].flag_count & 0xffffff;
634 p = &(sg_list[sg_index++]);
635 /* Allocate memory for the transfer */
637 (&c->pdev->dev, p, sg_size,
638 PCI_DMA_BIDIRECTIONAL)) {
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;
645 /* Copy in the user's SG buffer if necessary */
647 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
651 (void __user *)(unsigned long)sg[i].
652 addr_bus, sg_size)) {
654 "%s: Could not copy SG buf %d FROM user\n",
657 goto sg_list_cleanup;
661 sg[i].addr_bus = (u32) p->phys;
665 rcode = i2o_msg_post_wait(c, m, 60);
667 goto sg_list_cleanup;
670 u32 msg[I2O_OUTBOUND_MSG_FRAME_SIZE];
671 /* Copy back the Scatter Gather buffers back to user space */
674 struct sg_simple_element *sg;
677 // re-acquire the original message to handle correctly the sg copy operation
678 memset(&msg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
679 // get user msg size in u32s
680 if (get_user(size, &user_msg[0])) {
682 goto sg_list_cleanup;
686 /* Copy in the user's I2O command */
687 if (copy_from_user(msg, user_msg, size)) {
689 goto sg_list_cleanup;
692 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
695 sg = (struct sg_simple_element *)(msg + sg_offset);
696 for (j = 0; j < sg_count; j++) {
697 /* Copy out the SG list to user's buffer if necessary */
700 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
701 sg_size = sg[j].flag_count & 0xffffff;
704 ((void __user *)(u64) sg[j].addr_bus,
705 sg_list[j].virt, sg_size)) {
707 "%s: Could not copy %p TO user %x\n",
708 c->name, sg_list[j].virt,
711 goto sg_list_cleanup;
717 /* Copy back the reply to user space */
719 // we wrote our own values for context - now restore the user supplied ones
720 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
722 "%s: Could not copy message context FROM user\n",
725 goto sg_list_cleanup;
727 if (copy_to_user(user_reply, reply, reply_size)) {
729 "%s: Could not copy reply TO user\n", c->name);
735 for (i = 0; i < sg_index; i++)
736 i2o_dma_free(&c->pdev->dev, &sg_list[i]);
743 static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
750 ret = i2o_cfg_ioctl(NULL, file, cmd, arg);
753 ret = i2o_cfg_passthru32(file, cmd, arg);
765 static int i2o_cfg_passthru(unsigned long arg)
767 struct i2o_cmd_passthru __user *cmd =
768 (struct i2o_cmd_passthru __user *)arg;
769 struct i2o_controller *c;
770 u32 __user *user_msg;
772 u32 __user *user_reply = NULL;
776 void *sg_list[SG_TABLESIZE];
782 i2o_status_block *sb;
783 struct i2o_message __iomem *msg;
787 if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
790 c = i2o_find_iop(iop);
792 osm_warn("controller %d not found\n", iop);
796 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
798 sb = c->status_block.virt;
800 if (get_user(size, &user_msg[0]))
804 if (size > sb->inbound_frame_size) {
805 osm_warn("size of message > inbound_frame_size");
809 user_reply = &user_msg[size];
811 size <<= 2; // Convert to bytes
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 = kmalloc(reply_size, GFP_KERNEL);
825 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
829 memset(reply, 0, reply_size);
831 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
833 writel(i2o_config_driver.context, &msg->u.s.icntxt);
834 writel(i2o_cntxt_list_add(c, reply), &msg->u.s.tcntxt);
836 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
838 struct sg_simple_element *sg;
840 if (sg_offset * 4 >= size) {
845 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
848 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
849 if (sg_count > SG_TABLESIZE) {
850 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
856 for (i = 0; i < sg_count; i++) {
859 if (!(sg[i].flag_count & 0x10000000
860 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
862 "%s:Bad SG element %d - not simple (%x)\n",
863 c->name, i, sg[i].flag_count);
865 goto sg_list_cleanup;
867 sg_size = sg[i].flag_count & 0xffffff;
868 /* Allocate memory for the transfer */
869 p = kmalloc(sg_size, GFP_KERNEL);
872 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
873 c->name, sg_size, i, sg_count);
875 goto sg_list_cleanup;
877 sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
878 /* Copy in the user's SG buffer if necessary */
880 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
883 (p, (void __user *)sg[i].addr_bus,
886 "%s: Could not copy SG buf %d FROM user\n",
889 goto sg_list_cleanup;
893 sg[i].addr_bus = virt_to_bus(p);
897 rcode = i2o_msg_post_wait(c, m, 60);
899 goto sg_list_cleanup;
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(&msg, 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(msg, user_msg, size)) {
921 goto sg_list_cleanup;
924 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
927 sg = (struct sg_simple_element *)(msg + 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],
939 "%s: Could not copy %p TO user %x\n",
943 goto sg_list_cleanup;
949 /* Copy back the reply to user space */
951 // we wrote our own values for context - now restore the user supplied ones
952 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
954 "%s: Could not copy message context FROM user\n",
958 if (copy_to_user(user_reply, reply, reply_size)) {
960 "%s: Could not copy reply TO user\n", c->name);
966 for (i = 0; i < sg_index; i++)
978 static int i2o_cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
985 ret = i2o_cfg_getiops(arg);
989 ret = i2o_cfg_gethrt(arg);
993 ret = i2o_cfg_getlct(arg);
997 ret = i2o_cfg_parms(arg, I2OPARMSET);
1001 ret = i2o_cfg_parms(arg, I2OPARMGET);
1005 ret = i2o_cfg_swdl(arg);
1009 ret = i2o_cfg_swul(arg);
1013 ret = i2o_cfg_swdel(arg);
1017 ret = i2o_cfg_validate(arg);
1021 ret = i2o_cfg_evt_reg(arg, fp);
1025 ret = i2o_cfg_evt_get(arg, fp);
1028 #ifdef CONFIG_I2O_EXT_ADAPTEC
1030 ret = i2o_cfg_passthru(arg);
1035 osm_debug("unknown ioctl called!\n");
1042 static int cfg_open(struct inode *inode, struct file *file)
1044 struct i2o_cfg_info *tmp =
1045 (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info),
1047 unsigned long flags;
1052 file->private_data = (void *)(i2o_cfg_info_id++);
1055 tmp->q_id = (ulong) file->private_data;
1060 tmp->next = open_files;
1062 spin_lock_irqsave(&i2o_config_lock, flags);
1064 spin_unlock_irqrestore(&i2o_config_lock, flags);
1069 static int cfg_fasync(int fd, struct file *fp, int on)
1071 ulong id = (ulong) fp->private_data;
1072 struct i2o_cfg_info *p;
1074 for (p = open_files; p; p = p->next)
1081 return fasync_helper(fd, fp, on, &p->fasync);
1084 static int cfg_release(struct inode *inode, struct file *file)
1086 ulong id = (ulong) file->private_data;
1087 struct i2o_cfg_info *p1, *p2;
1088 unsigned long flags;
1093 spin_lock_irqsave(&i2o_config_lock, flags);
1094 for (p1 = open_files; p1;) {
1095 if (p1->q_id == id) {
1098 cfg_fasync(-1, file, 0);
1100 p2->next = p1->next;
1102 open_files = p1->next;
1110 spin_unlock_irqrestore(&i2o_config_lock, flags);
1116 static struct file_operations config_fops = {
1117 .owner = THIS_MODULE,
1118 .llseek = no_llseek,
1119 .ioctl = i2o_cfg_ioctl,
1120 #ifdef CONFIG_COMPAT
1121 .compat_ioctl = i2o_cfg_compat_ioctl,
1124 .release = cfg_release,
1125 .fasync = cfg_fasync,
1128 static struct miscdevice i2o_miscdev = {
1134 static int __init i2o_config_old_init(void)
1136 spin_lock_init(&i2o_config_lock);
1138 if (misc_register(&i2o_miscdev) < 0) {
1139 osm_err("can't register device.\n");
1146 static void i2o_config_old_exit(void)
1148 misc_deregister(&i2o_miscdev);
1151 MODULE_AUTHOR("Red Hat Software");