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/smp_lock.h>
35 #include <linux/compat.h>
36 #include <linux/slab.h>
38 #include <asm/uaccess.h>
42 #define SG_TABLESIZE 30
44 static long i2o_cfg_ioctl(struct file *, unsigned int, unsigned long);
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 if (put_user(len, kcmd.reslen))
116 else if (len > reslen)
118 else 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 if (put_user(len, kcmd.reslen))
152 else if (len > reslen)
154 else if (copy_to_user(kcmd.resbuf, lct, len))
160 static int i2o_cfg_parms(unsigned long arg, unsigned int type)
163 struct i2o_controller *c;
164 struct i2o_device *dev;
165 struct i2o_cmd_psetget __user *cmd =
166 (struct i2o_cmd_psetget __user *)arg;
167 struct i2o_cmd_psetget kcmd;
173 u32 i2o_cmd = (type == I2OPARMGET ?
174 I2O_CMD_UTIL_PARAMS_GET : I2O_CMD_UTIL_PARAMS_SET);
176 if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget)))
179 if (get_user(reslen, kcmd.reslen))
182 c = i2o_find_iop(kcmd.iop);
186 dev = i2o_iop_find_device(c, kcmd.tid);
190 ops = memdup_user(kcmd.opbuf, kcmd.oplen);
195 * It's possible to have a _very_ large table
196 * and that the user asks for all of it at once...
198 res = kmalloc(65536, GFP_KERNEL);
204 len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536);
212 if (put_user(len, kcmd.reslen))
214 else if (len > reslen)
216 else if (copy_to_user(kcmd.resbuf, res, len))
224 static int i2o_cfg_swdl(unsigned long arg)
226 struct i2o_sw_xfer kxfer;
227 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
228 unsigned char maxfrag = 0, curfrag = 1;
229 struct i2o_dma buffer;
230 struct i2o_message *msg;
231 unsigned int status = 0, swlen = 0, fragsize = 8192;
232 struct i2o_controller *c;
234 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
237 if (get_user(swlen, kxfer.swlen) < 0)
240 if (get_user(maxfrag, kxfer.maxfrag) < 0)
243 if (get_user(curfrag, kxfer.curfrag) < 0)
246 if (curfrag == maxfrag)
247 fragsize = swlen - (maxfrag - 1) * 8192;
249 if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
252 c = i2o_find_iop(kxfer.iop);
256 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
260 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
265 if (__copy_from_user(buffer.virt, kxfer.buf, fragsize)) {
267 i2o_dma_free(&c->pdev->dev, &buffer);
271 msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
273 cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 |
275 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
276 msg->u.head[3] = cpu_to_le32(0);
278 cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer.
280 (((u32) maxfrag) << 8) | (((u32) curfrag)));
281 msg->body[1] = cpu_to_le32(swlen);
282 msg->body[2] = cpu_to_le32(kxfer.sw_id);
283 msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
284 msg->body[4] = cpu_to_le32(buffer.phys);
286 osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
287 status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
289 if (status != -ETIMEDOUT)
290 i2o_dma_free(&c->pdev->dev, &buffer);
292 if (status != I2O_POST_WAIT_OK) {
293 // it fails if you try and send frags out of order
294 // and for some yet unknown reasons too
295 osm_info("swdl failed, DetailedStatus = %d\n", status);
302 static int i2o_cfg_swul(unsigned long arg)
304 struct i2o_sw_xfer kxfer;
305 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
306 unsigned char maxfrag = 0, curfrag = 1;
307 struct i2o_dma buffer;
308 struct i2o_message *msg;
309 unsigned int status = 0, swlen = 0, fragsize = 8192;
310 struct i2o_controller *c;
313 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
316 if (get_user(swlen, kxfer.swlen) < 0)
319 if (get_user(maxfrag, kxfer.maxfrag) < 0)
322 if (get_user(curfrag, kxfer.curfrag) < 0)
325 if (curfrag == maxfrag)
326 fragsize = swlen - (maxfrag - 1) * 8192;
331 c = i2o_find_iop(kxfer.iop);
335 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
339 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
344 msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
346 cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID);
347 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
348 msg->u.head[3] = cpu_to_le32(0);
350 cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.
351 sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag);
352 msg->body[1] = cpu_to_le32(swlen);
353 msg->body[2] = cpu_to_le32(kxfer.sw_id);
354 msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
355 msg->body[4] = cpu_to_le32(buffer.phys);
357 osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
358 status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
360 if (status != I2O_POST_WAIT_OK) {
361 if (status != -ETIMEDOUT)
362 i2o_dma_free(&c->pdev->dev, &buffer);
364 osm_info("swul failed, DetailedStatus = %d\n", status);
368 if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
371 i2o_dma_free(&c->pdev->dev, &buffer);
376 static int i2o_cfg_swdel(unsigned long arg)
378 struct i2o_controller *c;
379 struct i2o_sw_xfer kxfer;
380 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
381 struct i2o_message *msg;
385 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
388 if (get_user(swlen, kxfer.swlen) < 0)
391 c = i2o_find_iop(kxfer.iop);
395 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
399 msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0);
401 cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID);
402 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
403 msg->u.head[3] = cpu_to_le32(0);
405 cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16);
406 msg->body[1] = cpu_to_le32(swlen);
407 msg->body[2] = cpu_to_le32(kxfer.sw_id);
409 token = i2o_msg_post_wait(c, msg, 10);
411 if (token != I2O_POST_WAIT_OK) {
412 osm_info("swdel failed, DetailedStatus = %d\n", token);
419 static int i2o_cfg_validate(unsigned long arg)
423 struct i2o_message *msg;
424 struct i2o_controller *c;
426 c = i2o_find_iop(iop);
430 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
434 msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
436 cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop);
437 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
438 msg->u.head[3] = cpu_to_le32(0);
440 token = i2o_msg_post_wait(c, msg, 10);
442 if (token != I2O_POST_WAIT_OK) {
443 osm_info("Can't validate configuration, ErrorStatus = %d\n",
451 static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp)
453 struct i2o_message *msg;
454 struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg;
455 struct i2o_evt_id kdesc;
456 struct i2o_controller *c;
457 struct i2o_device *d;
459 if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
463 c = i2o_find_iop(kdesc.iop);
468 d = i2o_iop_find_device(c, kdesc.tid);
472 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
476 msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
478 cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 |
480 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
481 msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data));
482 msg->body[0] = cpu_to_le32(kdesc.evt_mask);
484 i2o_msg_post(c, msg);
489 static int i2o_cfg_evt_get(unsigned long arg, struct file *fp)
491 struct i2o_cfg_info *p = NULL;
492 struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg;
493 struct i2o_evt_get kget;
496 for (p = open_files; p; p = p->next)
497 if (p->q_id == (ulong) fp->private_data)
503 memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
504 MODINC(p->q_out, I2O_EVT_Q_LEN);
505 spin_lock_irqsave(&i2o_config_lock, flags);
507 kget.pending = p->q_len;
508 kget.lost = p->q_lost;
509 spin_unlock_irqrestore(&i2o_config_lock, flags);
511 if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
517 static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
520 struct i2o_cmd_passthru32 __user *cmd;
521 struct i2o_controller *c;
522 u32 __user *user_msg;
524 u32 __user *user_reply = NULL;
528 struct i2o_dma sg_list[SG_TABLESIZE];
533 i2o_status_block *sb;
534 struct i2o_message *msg;
537 cmd = (struct i2o_cmd_passthru32 __user *)arg;
539 if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
542 user_msg = compat_ptr(i);
544 c = i2o_find_iop(iop);
546 osm_debug("controller %d not found\n", iop);
550 sb = c->status_block.virt;
552 if (get_user(size, &user_msg[0])) {
553 osm_warn("unable to get size!\n");
558 if (size > sb->inbound_frame_size) {
559 osm_warn("size of message > inbound_frame_size");
563 user_reply = &user_msg[size];
565 size <<= 2; // Convert to bytes
567 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
572 /* Copy in the user's I2O command */
573 if (copy_from_user(msg, user_msg, size)) {
574 osm_warn("unable to copy user message\n");
577 i2o_dump_message(msg);
579 if (get_user(reply_size, &user_reply[0]) < 0)
586 reply = kzalloc(reply_size, GFP_KERNEL);
588 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
593 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
595 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
597 struct sg_simple_element *sg;
599 if (sg_offset * 4 >= size) {
604 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
607 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
608 if (sg_count > SG_TABLESIZE) {
609 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
615 for (i = 0; i < sg_count; i++) {
619 if (!(sg[i].flag_count & 0x10000000
620 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
622 "%s:Bad SG element %d - not simple (%x)\n",
623 c->name, i, sg[i].flag_count);
627 sg_size = sg[i].flag_count & 0xffffff;
628 p = &(sg_list[sg_index]);
629 /* Allocate memory for the transfer */
630 if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
632 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
633 c->name, sg_size, i, sg_count);
635 goto sg_list_cleanup;
638 /* Copy in the user's SG buffer if necessary */
640 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
644 (void __user *)(unsigned long)sg[i].
645 addr_bus, sg_size)) {
647 "%s: Could not copy SG buf %d FROM user\n",
650 goto sg_list_cleanup;
654 sg[i].addr_bus = (u32) p->phys;
658 rcode = i2o_msg_post_wait(c, msg, 60);
661 reply[4] = ((u32) rcode) << 24;
662 goto sg_list_cleanup;
666 u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
667 /* Copy back the Scatter Gather buffers back to user space */
670 struct sg_simple_element *sg;
673 // re-acquire the original message to handle correctly the sg copy operation
674 memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
675 // get user msg size in u32s
676 if (get_user(size, &user_msg[0])) {
678 goto sg_list_cleanup;
682 /* Copy in the user's I2O command */
683 if (copy_from_user(rmsg, user_msg, size)) {
685 goto sg_list_cleanup;
688 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
691 sg = (struct sg_simple_element *)(rmsg + sg_offset);
692 for (j = 0; j < sg_count; j++) {
693 /* Copy out the SG list to user's buffer if necessary */
696 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
697 sg_size = sg[j].flag_count & 0xffffff;
700 ((void __user *)(u64) sg[j].addr_bus,
701 sg_list[j].virt, sg_size)) {
703 "%s: Could not copy %p TO user %x\n",
704 c->name, sg_list[j].virt,
707 goto sg_list_cleanup;
714 /* Copy back the reply to user space */
716 // we wrote our own values for context - now restore the user supplied ones
717 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
719 "%s: Could not copy message context FROM user\n",
723 if (copy_to_user(user_reply, reply, reply_size)) {
725 "%s: Could not copy reply TO user\n", c->name);
729 for (i = 0; i < sg_index; i++)
730 i2o_dma_free(&c->pdev->dev, &sg_list[i]);
740 static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
747 ret = i2o_cfg_ioctl(file, cmd, arg);
750 ret = i2o_cfg_passthru32(file, cmd, arg);
762 #ifdef CONFIG_I2O_EXT_ADAPTEC
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 struct i2o_dma sg_list[SG_TABLESIZE];
779 i2o_status_block *sb;
780 struct i2o_message *msg;
783 if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
786 c = i2o_find_iop(iop);
788 osm_warn("controller %d not found\n", iop);
792 sb = c->status_block.virt;
794 if (get_user(size, &user_msg[0]))
798 if (size > sb->inbound_frame_size) {
799 osm_warn("size of message > inbound_frame_size");
803 user_reply = &user_msg[size];
805 size <<= 2; // Convert to bytes
807 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
812 /* Copy in the user's I2O command */
813 if (copy_from_user(msg, user_msg, size))
816 if (get_user(reply_size, &user_reply[0]) < 0)
822 reply = kzalloc(reply_size, GFP_KERNEL);
824 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
830 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
832 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
834 struct sg_simple_element *sg;
837 if (sg_offset * 4 >= size) {
842 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
845 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
846 if (sg_count > SG_TABLESIZE) {
847 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
853 for (i = 0; i < sg_count; i++) {
856 if (!(sg[i].flag_count & 0x10000000
857 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
859 "%s:Bad SG element %d - not simple (%x)\n",
860 c->name, i, sg[i].flag_count);
862 goto sg_list_cleanup;
864 sg_size = sg[i].flag_count & 0xffffff;
865 p = &(sg_list[sg_index]);
866 if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
867 /* Allocate memory for the transfer */
869 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
870 c->name, sg_size, i, sg_count);
872 goto sg_list_cleanup;
875 /* Copy in the user's SG buffer if necessary */
877 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
880 (p->virt, (void __user *)sg[i].addr_bus,
883 "%s: Could not copy SG buf %d FROM user\n",
886 goto sg_list_cleanup;
889 sg[i].addr_bus = p->phys;
893 rcode = i2o_msg_post_wait(c, msg, 60);
896 reply[4] = ((u32) rcode) << 24;
897 goto sg_list_cleanup;
901 u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
902 /* Copy back the Scatter Gather buffers back to user space */
905 struct sg_simple_element *sg;
908 // re-acquire the original message to handle correctly the sg copy operation
909 memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
910 // get user msg size in u32s
911 if (get_user(size, &user_msg[0])) {
913 goto sg_list_cleanup;
917 /* Copy in the user's I2O command */
918 if (copy_from_user(rmsg, user_msg, size)) {
920 goto sg_list_cleanup;
923 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
926 sg = (struct sg_simple_element *)(rmsg + sg_offset);
927 for (j = 0; j < sg_count; j++) {
928 /* Copy out the SG list to user's buffer if necessary */
931 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
932 sg_size = sg[j].flag_count & 0xffffff;
935 ((void __user *)sg[j].addr_bus, sg_list[j].virt,
938 "%s: Could not copy %p TO user %x\n",
939 c->name, sg_list[j].virt,
942 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);
965 for (i = 0; i < sg_index; i++)
966 i2o_dma_free(&c->pdev->dev, &sg_list[i]);
980 static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
987 ret = i2o_cfg_getiops(arg);
991 ret = i2o_cfg_gethrt(arg);
995 ret = i2o_cfg_getlct(arg);
999 ret = i2o_cfg_parms(arg, I2OPARMSET);
1003 ret = i2o_cfg_parms(arg, I2OPARMGET);
1007 ret = i2o_cfg_swdl(arg);
1011 ret = i2o_cfg_swul(arg);
1015 ret = i2o_cfg_swdel(arg);
1019 ret = i2o_cfg_validate(arg);
1023 ret = i2o_cfg_evt_reg(arg, fp);
1027 ret = i2o_cfg_evt_get(arg, fp);
1030 #ifdef CONFIG_I2O_EXT_ADAPTEC
1032 ret = i2o_cfg_passthru(arg);
1037 osm_debug("unknown ioctl called!\n");
1044 static int cfg_open(struct inode *inode, struct file *file)
1046 struct i2o_cfg_info *tmp =
1047 (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info),
1049 unsigned long flags;
1055 file->private_data = (void *)(i2o_cfg_info_id++);
1058 tmp->q_id = (ulong) file->private_data;
1063 tmp->next = open_files;
1065 spin_lock_irqsave(&i2o_config_lock, flags);
1067 spin_unlock_irqrestore(&i2o_config_lock, flags);
1073 static int cfg_fasync(int fd, struct file *fp, int on)
1075 ulong id = (ulong) fp->private_data;
1076 struct i2o_cfg_info *p;
1080 for (p = open_files; p; p = p->next)
1085 ret = fasync_helper(fd, fp, on, &p->fasync);
1090 static int cfg_release(struct inode *inode, struct file *file)
1092 ulong id = (ulong) file->private_data;
1093 struct i2o_cfg_info *p, **q;
1094 unsigned long flags;
1097 spin_lock_irqsave(&i2o_config_lock, flags);
1098 for (q = &open_files; (p = *q) != NULL; q = &p->next) {
1099 if (p->q_id == id) {
1105 spin_unlock_irqrestore(&i2o_config_lock, flags);
1111 static const struct file_operations config_fops = {
1112 .owner = THIS_MODULE,
1113 .llseek = no_llseek,
1114 .unlocked_ioctl = i2o_cfg_ioctl,
1115 #ifdef CONFIG_COMPAT
1116 .compat_ioctl = i2o_cfg_compat_ioctl,
1119 .release = cfg_release,
1120 .fasync = cfg_fasync,
1123 static struct miscdevice i2o_miscdev = {
1129 static int __init i2o_config_old_init(void)
1131 spin_lock_init(&i2o_config_lock);
1133 if (misc_register(&i2o_miscdev) < 0) {
1134 osm_err("can't register device.\n");
1141 static void i2o_config_old_exit(void)
1143 misc_deregister(&i2o_miscdev);
1146 MODULE_AUTHOR("Red Hat Software");