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/module.h>
34 #include <linux/kernel.h>
35 #include <linux/pci.h>
36 #include <linux/i2o.h>
37 #include <linux/errno.h>
38 #include <linux/init.h>
39 #include <linux/slab.h>
40 #include <linux/miscdevice.h>
42 #include <linux/spinlock.h>
43 #include <linux/smp_lock.h>
44 #include <linux/ioctl32.h>
45 #include <linux/compat.h>
46 #include <linux/syscalls.h>
48 #include <asm/uaccess.h>
51 #define OSM_NAME "config-osm"
52 #define OSM_VERSION "$Rev$"
53 #define OSM_DESCRIPTION "I2O Configuration OSM"
55 extern int i2o_parm_issue(struct i2o_device *, int, void *, int, void *, int);
57 static spinlock_t i2o_config_lock;
59 #define MODINC(x,y) ((x) = ((x) + 1) % (y))
61 struct sg_simple_element {
68 struct fasync_struct *fasync;
69 struct i2o_evt_info event_q[I2O_EVT_Q_LEN];
70 u16 q_in; // Queue head index
71 u16 q_out; // Queue tail index
72 u16 q_len; // Queue length
73 u16 q_lost; // Number of lost events
74 ulong q_id; // Event queue ID...used as tx_context
75 struct i2o_cfg_info *next;
77 static struct i2o_cfg_info *open_files = NULL;
78 static ulong i2o_cfg_info_id = 0;
81 * Each of these describes an i2o message handler. They are
82 * multiplexed by the i2o_core code
85 static struct i2o_driver i2o_config_driver = {
89 static int i2o_cfg_getiops(unsigned long arg)
91 struct i2o_controller *c;
92 u8 __user *user_iop_table = (void __user *)arg;
93 u8 tmp[MAX_I2O_CONTROLLERS];
96 memset(tmp, 0, MAX_I2O_CONTROLLERS);
98 list_for_each_entry(c, &i2o_controllers, list)
101 if (copy_to_user(user_iop_table, tmp, MAX_I2O_CONTROLLERS))
107 static int i2o_cfg_gethrt(unsigned long arg)
109 struct i2o_controller *c;
110 struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg;
111 struct i2o_cmd_hrtlct kcmd;
117 if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
120 if (get_user(reslen, kcmd.reslen) < 0)
123 if (kcmd.resbuf == NULL)
126 c = i2o_find_iop(kcmd.iop);
130 hrt = (i2o_hrt *) c->hrt.virt;
132 len = 8 + ((hrt->entry_len * hrt->num_entries) << 2);
134 /* We did a get user...so assuming mem is ok...is this bad? */
135 put_user(len, kcmd.reslen);
138 if (copy_to_user(kcmd.resbuf, (void *)hrt, len))
144 static int i2o_cfg_getlct(unsigned long arg)
146 struct i2o_controller *c;
147 struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg;
148 struct i2o_cmd_hrtlct kcmd;
154 if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
157 if (get_user(reslen, kcmd.reslen) < 0)
160 if (kcmd.resbuf == NULL)
163 c = i2o_find_iop(kcmd.iop);
167 lct = (i2o_lct *) c->lct;
169 len = (unsigned int)lct->table_size << 2;
170 put_user(len, kcmd.reslen);
173 else if (copy_to_user(kcmd.resbuf, lct, len))
179 static int i2o_cfg_parms(unsigned long arg, unsigned int type)
182 struct i2o_controller *c;
183 struct i2o_device *dev;
184 struct i2o_cmd_psetget __user *cmd =
185 (struct i2o_cmd_psetget __user *)arg;
186 struct i2o_cmd_psetget kcmd;
192 u32 i2o_cmd = (type == I2OPARMGET ?
193 I2O_CMD_UTIL_PARAMS_GET : I2O_CMD_UTIL_PARAMS_SET);
195 if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget)))
198 if (get_user(reslen, kcmd.reslen))
201 c = i2o_find_iop(kcmd.iop);
205 dev = i2o_iop_find_device(c, kcmd.tid);
209 ops = (u8 *) kmalloc(kcmd.oplen, GFP_KERNEL);
213 if (copy_from_user(ops, kcmd.opbuf, kcmd.oplen)) {
219 * It's possible to have a _very_ large table
220 * and that the user asks for all of it at once...
222 res = (u8 *) kmalloc(65536, GFP_KERNEL);
228 len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536);
236 put_user(len, kcmd.reslen);
239 else if (copy_to_user(kcmd.resbuf, res, len))
247 static int i2o_cfg_swdl(unsigned long arg)
249 struct i2o_sw_xfer kxfer;
250 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
251 unsigned char maxfrag = 0, curfrag = 1;
252 struct i2o_dma buffer;
253 struct i2o_message __iomem *msg;
255 unsigned int status = 0, swlen = 0, fragsize = 8192;
256 struct i2o_controller *c;
258 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
261 if (get_user(swlen, kxfer.swlen) < 0)
264 if (get_user(maxfrag, kxfer.maxfrag) < 0)
267 if (get_user(curfrag, kxfer.curfrag) < 0)
270 if (curfrag == maxfrag)
271 fragsize = swlen - (maxfrag - 1) * 8192;
273 if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
276 c = i2o_find_iop(kxfer.iop);
280 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
281 if (m == I2O_QUEUE_EMPTY)
284 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
289 __copy_from_user(buffer.virt, kxfer.buf, fragsize);
291 writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_7, &msg->u.head[0]);
292 writel(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 | ADAPTER_TID,
294 writel(i2o_config_driver.context, &msg->u.head[2]);
295 writel(0, &msg->u.head[3]);
296 writel((((u32) kxfer.flags) << 24) | (((u32) kxfer.sw_type) << 16) |
297 (((u32) maxfrag) << 8) | (((u32) curfrag)), &msg->body[0]);
298 writel(swlen, &msg->body[1]);
299 writel(kxfer.sw_id, &msg->body[2]);
300 writel(0xD0000000 | fragsize, &msg->body[3]);
301 writel(buffer.phys, &msg->body[4]);
303 osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
304 status = i2o_msg_post_wait_mem(c, m, 60, &buffer);
306 if (status != -ETIMEDOUT)
307 i2o_dma_free(&c->pdev->dev, &buffer);
309 if (status != I2O_POST_WAIT_OK) {
310 // it fails if you try and send frags out of order
311 // and for some yet unknown reasons too
312 osm_info("swdl failed, DetailedStatus = %d\n", status);
319 static int i2o_cfg_swul(unsigned long arg)
321 struct i2o_sw_xfer kxfer;
322 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
323 unsigned char maxfrag = 0, curfrag = 1;
324 struct i2o_dma buffer;
325 struct i2o_message __iomem *msg;
327 unsigned int status = 0, swlen = 0, fragsize = 8192;
328 struct i2o_controller *c;
331 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
334 if (get_user(swlen, kxfer.swlen) < 0)
337 if (get_user(maxfrag, kxfer.maxfrag) < 0)
340 if (get_user(curfrag, kxfer.curfrag) < 0)
343 if (curfrag == maxfrag)
344 fragsize = swlen - (maxfrag - 1) * 8192;
349 c = i2o_find_iop(kxfer.iop);
353 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
354 if (m == I2O_QUEUE_EMPTY)
357 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
362 writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_7, &msg->u.head[0]);
363 writel(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID,
365 writel(i2o_config_driver.context, &msg->u.head[2]);
366 writel(0, &msg->u.head[3]);
367 writel((u32) kxfer.flags << 24 | (u32) kxfer.
368 sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag,
370 writel(swlen, &msg->body[1]);
371 writel(kxfer.sw_id, &msg->body[2]);
372 writel(0xD0000000 | fragsize, &msg->body[3]);
373 writel(buffer.phys, &msg->body[4]);
375 osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
376 status = i2o_msg_post_wait_mem(c, m, 60, &buffer);
378 if (status != I2O_POST_WAIT_OK) {
379 if (status != -ETIMEDOUT)
380 i2o_dma_free(&c->pdev->dev, &buffer);
382 osm_info("swul failed, DetailedStatus = %d\n", status);
386 if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
389 i2o_dma_free(&c->pdev->dev, &buffer);
398 static int i2o_cfg_swdel(unsigned long arg)
400 struct i2o_controller *c;
401 struct i2o_sw_xfer kxfer;
402 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
403 struct i2o_message __iomem *msg;
408 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
411 if (get_user(swlen, kxfer.swlen) < 0)
414 c = i2o_find_iop(kxfer.iop);
418 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
419 if (m == I2O_QUEUE_EMPTY)
422 writel(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
423 writel(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID,
425 writel(i2o_config_driver.context, &msg->u.head[2]);
426 writel(0, &msg->u.head[3]);
427 writel((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16,
429 writel(swlen, &msg->body[1]);
430 writel(kxfer.sw_id, &msg->body[2]);
432 token = i2o_msg_post_wait(c, m, 10);
434 if (token != I2O_POST_WAIT_OK) {
435 osm_info("swdel failed, DetailedStatus = %d\n", token);
442 static int i2o_cfg_validate(unsigned long arg)
446 struct i2o_message __iomem *msg;
448 struct i2o_controller *c;
450 c = i2o_find_iop(iop);
454 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
455 if (m == I2O_QUEUE_EMPTY)
458 writel(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
459 writel(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop,
461 writel(i2o_config_driver.context, &msg->u.head[2]);
462 writel(0, &msg->u.head[3]);
464 token = i2o_msg_post_wait(c, m, 10);
466 if (token != I2O_POST_WAIT_OK) {
467 osm_info("Can't validate configuration, ErrorStatus = %d\n",
475 static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp)
477 struct i2o_message __iomem *msg;
479 struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg;
480 struct i2o_evt_id kdesc;
481 struct i2o_controller *c;
482 struct i2o_device *d;
484 if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
488 c = i2o_find_iop(kdesc.iop);
493 d = i2o_iop_find_device(c, kdesc.tid);
497 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
498 if (m == I2O_QUEUE_EMPTY)
501 writel(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
502 writel(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | kdesc.tid,
504 writel(i2o_config_driver.context, &msg->u.head[2]);
505 writel(i2o_cntxt_list_add(c, fp->private_data), &msg->u.head[3]);
506 writel(kdesc.evt_mask, &msg->body[0]);
513 static int i2o_cfg_evt_get(unsigned long arg, struct file *fp)
515 struct i2o_cfg_info *p = NULL;
516 struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg;
517 struct i2o_evt_get kget;
520 for (p = open_files; p; p = p->next)
521 if (p->q_id == (ulong) fp->private_data)
527 memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
528 MODINC(p->q_out, I2O_EVT_Q_LEN);
529 spin_lock_irqsave(&i2o_config_lock, flags);
531 kget.pending = p->q_len;
532 kget.lost = p->q_lost;
533 spin_unlock_irqrestore(&i2o_config_lock, flags);
535 if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
541 static int i2o_cfg_passthru32(unsigned fd, unsigned cmnd, unsigned long arg,
544 struct i2o_cmd_passthru32 __user *cmd;
545 struct i2o_controller *c;
546 u32 __user *user_msg;
548 u32 __user *user_reply = NULL;
552 struct i2o_dma sg_list[SG_TABLESIZE];
556 i2o_status_block *sb;
557 struct i2o_message *msg;
561 cmd = (struct i2o_cmd_passthru32 __user *)arg;
563 if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
566 user_msg = compat_ptr(i);
568 c = i2o_find_iop(iop);
570 osm_debug("controller %d not found\n", iop);
574 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
576 sb = c->status_block.virt;
578 if (get_user(size, &user_msg[0])) {
579 osm_warn("unable to get size!\n");
584 if (size > sb->inbound_frame_size) {
585 osm_warn("size of message > inbound_frame_size");
589 user_reply = &user_msg[size];
591 size <<= 2; // Convert to bytes
593 /* Copy in the user's I2O command */
594 if (copy_from_user(msg, user_msg, size)) {
595 osm_warn("unable to copy user message\n");
598 i2o_dump_message(msg);
600 if (get_user(reply_size, &user_reply[0]) < 0)
606 reply = kmalloc(reply_size, GFP_KERNEL);
608 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
612 memset(reply, 0, reply_size);
614 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
616 writel(i2o_config_driver.context, &msg->u.s.icntxt);
617 writel(i2o_cntxt_list_add(c, reply), &msg->u.s.tcntxt);
619 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
621 struct sg_simple_element *sg;
623 if (sg_offset * 4 >= size) {
628 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
631 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
632 if (sg_count > SG_TABLESIZE) {
633 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
639 for (i = 0; i < sg_count; i++) {
643 if (!(sg[i].flag_count & 0x10000000
644 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
646 "%s:Bad SG element %d - not simple (%x)\n",
647 c->name, i, sg[i].flag_count);
651 sg_size = sg[i].flag_count & 0xffffff;
653 /* Allocate memory for the transfer */
655 (&c->pdev->dev, p, sg_size,
656 PCI_DMA_BIDIRECTIONAL)) {
658 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
659 c->name, sg_size, i, sg_count);
663 /* Copy in the user's SG buffer if necessary */
665 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
668 (p->virt, (void __user *)(unsigned long)sg[i].addr_bus,
671 "%s: Could not copy SG buf %d FROM user\n",
678 sg[i].addr_bus = (u32) p->phys;
682 rcode = i2o_msg_post_wait(c, m, 60);
688 /* Copy back the Scatter Gather buffers back to user space */
691 struct sg_simple_element *sg;
694 // re-acquire the original message to handle correctly the sg copy operation
695 memset(&msg, 0, MSG_FRAME_SIZE * 4);
696 // get user msg size in u32s
697 if (get_user(size, &user_msg[0])) {
703 /* Copy in the user's I2O command */
704 if (copy_from_user(msg, user_msg, size)) {
709 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
712 sg = (struct sg_simple_element *)(msg + sg_offset);
713 for (j = 0; j < sg_count; j++) {
714 /* Copy out the SG list to user's buffer if necessary */
717 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
718 sg_size = sg[j].flag_count & 0xffffff;
721 ((void __user *)(u64) sg[j].addr_bus,
722 sg_list[j].virt, sg_size)) {
724 "%s: Could not copy %p TO user %x\n",
725 c->name, sg_list[j].virt,
734 /* Copy back the reply to user space */
736 // we wrote our own values for context - now restore the user supplied ones
737 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
739 "%s: Could not copy message context FROM user\n",
743 if (copy_to_user(user_reply, reply, reply_size)) {
745 "%s: Could not copy reply TO user\n", c->name);
757 static int i2o_cfg_passthru(unsigned long arg)
759 struct i2o_cmd_passthru __user *cmd =
760 (struct i2o_cmd_passthru __user *)arg;
761 struct i2o_controller *c;
762 u32 __user *user_msg;
764 u32 __user *user_reply = NULL;
768 void *sg_list[SG_TABLESIZE];
774 i2o_status_block *sb;
775 struct i2o_message __iomem *msg;
779 if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
782 c = i2o_find_iop(iop);
784 osm_warn("controller %d not found\n", iop);
788 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
790 sb = c->status_block.virt;
792 if (get_user(size, &user_msg[0]))
796 if (size > sb->inbound_frame_size) {
797 osm_warn("size of message > inbound_frame_size");
801 user_reply = &user_msg[size];
803 size <<= 2; // Convert to bytes
805 /* Copy in the user's I2O command */
806 if (copy_from_user(msg, user_msg, size))
809 if (get_user(reply_size, &user_reply[0]) < 0)
815 reply = kmalloc(reply_size, GFP_KERNEL);
817 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
821 memset(reply, 0, reply_size);
823 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
825 writel(i2o_config_driver.context, &msg->u.s.icntxt);
826 writel(i2o_cntxt_list_add(c, reply), &msg->u.s.tcntxt);
828 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
830 struct sg_simple_element *sg;
832 if (sg_offset * 4 >= size) {
837 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
840 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
841 if (sg_count > SG_TABLESIZE) {
842 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
848 for (i = 0; i < sg_count; i++) {
851 if (!(sg[i].flag_count & 0x10000000
852 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
854 "%s:Bad SG element %d - not simple (%x)\n",
855 c->name, i, sg[i].flag_count);
859 sg_size = sg[i].flag_count & 0xffffff;
860 /* Allocate memory for the transfer */
861 p = kmalloc(sg_size, GFP_KERNEL);
864 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
865 c->name, sg_size, i, sg_count);
869 sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
870 /* Copy in the user's SG buffer if necessary */
872 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
875 (p, (void __user *)sg[i].addr_bus,
878 "%s: Could not copy SG buf %d FROM user\n",
885 sg[i].addr_bus = virt_to_bus(p);
889 rcode = i2o_msg_post_wait(c, m, 60);
895 /* Copy back the Scatter Gather buffers back to user space */
898 struct sg_simple_element *sg;
901 // re-acquire the original message to handle correctly the sg copy operation
902 memset(&msg, 0, MSG_FRAME_SIZE * 4);
903 // get user msg size in u32s
904 if (get_user(size, &user_msg[0])) {
910 /* Copy in the user's I2O command */
911 if (copy_from_user(msg, user_msg, size)) {
916 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
919 sg = (struct sg_simple_element *)(msg + sg_offset);
920 for (j = 0; j < sg_count; j++) {
921 /* Copy out the SG list to user's buffer if necessary */
924 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
925 sg_size = sg[j].flag_count & 0xffffff;
928 ((void __user *)sg[j].addr_bus, sg_list[j],
931 "%s: Could not copy %p TO user %x\n",
941 /* Copy back the reply to user space */
943 // we wrote our own values for context - now restore the user supplied ones
944 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
946 "%s: Could not copy message context FROM user\n",
950 if (copy_to_user(user_reply, reply, reply_size)) {
952 "%s: Could not copy reply TO user\n", c->name);
966 static int i2o_cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
973 ret = i2o_cfg_getiops(arg);
977 ret = i2o_cfg_gethrt(arg);
981 ret = i2o_cfg_getlct(arg);
985 ret = i2o_cfg_parms(arg, I2OPARMSET);
989 ret = i2o_cfg_parms(arg, I2OPARMGET);
993 ret = i2o_cfg_swdl(arg);
997 ret = i2o_cfg_swul(arg);
1001 ret = i2o_cfg_swdel(arg);
1005 ret = i2o_cfg_validate(arg);
1009 ret = i2o_cfg_evt_reg(arg, fp);
1013 ret = i2o_cfg_evt_get(arg, fp);
1016 #ifndef CONFIG_COMPAT
1018 ret = i2o_cfg_passthru(arg);
1023 osm_debug("unknown ioctl called!\n");
1030 static int cfg_open(struct inode *inode, struct file *file)
1032 struct i2o_cfg_info *tmp =
1033 (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info),
1035 unsigned long flags;
1040 file->private_data = (void *)(i2o_cfg_info_id++);
1043 tmp->q_id = (ulong) file->private_data;
1048 tmp->next = open_files;
1050 spin_lock_irqsave(&i2o_config_lock, flags);
1052 spin_unlock_irqrestore(&i2o_config_lock, flags);
1057 static int cfg_fasync(int fd, struct file *fp, int on)
1059 ulong id = (ulong) fp->private_data;
1060 struct i2o_cfg_info *p;
1062 for (p = open_files; p; p = p->next)
1069 return fasync_helper(fd, fp, on, &p->fasync);
1072 static int cfg_release(struct inode *inode, struct file *file)
1074 ulong id = (ulong) file->private_data;
1075 struct i2o_cfg_info *p1, *p2;
1076 unsigned long flags;
1081 spin_lock_irqsave(&i2o_config_lock, flags);
1082 for (p1 = open_files; p1;) {
1083 if (p1->q_id == id) {
1086 cfg_fasync(-1, file, 0);
1088 p2->next = p1->next;
1090 open_files = p1->next;
1098 spin_unlock_irqrestore(&i2o_config_lock, flags);
1104 static struct file_operations config_fops = {
1105 .owner = THIS_MODULE,
1106 .llseek = no_llseek,
1107 .ioctl = i2o_cfg_ioctl,
1109 .release = cfg_release,
1110 .fasync = cfg_fasync,
1113 static struct miscdevice i2o_miscdev = {
1119 static int __init i2o_config_init(void)
1121 printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
1123 spin_lock_init(&i2o_config_lock);
1125 if (misc_register(&i2o_miscdev) < 0) {
1126 osm_err("can't register device.\n");
1130 * Install our handler
1132 if (i2o_driver_register(&i2o_config_driver)) {
1133 osm_err("handler register failed.\n");
1134 misc_deregister(&i2o_miscdev);
1137 #ifdef CONFIG_COMPAT
1138 register_ioctl32_conversion(I2OPASSTHRU32, i2o_cfg_passthru32);
1139 register_ioctl32_conversion(I2OGETIOPS, (void *)sys_ioctl);
1144 static void i2o_config_exit(void)
1146 #ifdef CONFIG_COMPAT
1147 unregister_ioctl32_conversion(I2OPASSTHRU32);
1148 unregister_ioctl32_conversion(I2OGETIOPS);
1150 misc_deregister(&i2o_miscdev);
1151 i2o_driver_unregister(&i2o_config_driver);
1154 MODULE_AUTHOR("Red Hat Software");
1155 MODULE_LICENSE("GPL");
1156 MODULE_DESCRIPTION(OSM_DESCRIPTION);
1157 MODULE_VERSION(OSM_VERSION);
1159 module_init(i2o_config_init);
1160 module_exit(i2o_config_exit);