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 *, 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 = 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 = 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)) {
268 if (__copy_from_user(buffer.virt, kxfer.buf, fragsize)) {
270 i2o_dma_free(&c->pdev->dev, &buffer);
274 msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
276 cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 |
278 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
279 msg->u.head[3] = cpu_to_le32(0);
281 cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer.
283 (((u32) maxfrag) << 8) | (((u32) curfrag)));
284 msg->body[1] = cpu_to_le32(swlen);
285 msg->body[2] = cpu_to_le32(kxfer.sw_id);
286 msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
287 msg->body[4] = cpu_to_le32(buffer.phys);
289 osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
290 status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
292 if (status != -ETIMEDOUT)
293 i2o_dma_free(&c->pdev->dev, &buffer);
295 if (status != I2O_POST_WAIT_OK) {
296 // it fails if you try and send frags out of order
297 // and for some yet unknown reasons too
298 osm_info("swdl failed, DetailedStatus = %d\n", status);
305 static int i2o_cfg_swul(unsigned long arg)
307 struct i2o_sw_xfer kxfer;
308 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
309 unsigned char maxfrag = 0, curfrag = 1;
310 struct i2o_dma buffer;
311 struct i2o_message *msg;
312 unsigned int status = 0, swlen = 0, fragsize = 8192;
313 struct i2o_controller *c;
316 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
319 if (get_user(swlen, kxfer.swlen) < 0)
322 if (get_user(maxfrag, kxfer.maxfrag) < 0)
325 if (get_user(curfrag, kxfer.curfrag) < 0)
328 if (curfrag == maxfrag)
329 fragsize = swlen - (maxfrag - 1) * 8192;
334 c = i2o_find_iop(kxfer.iop);
338 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
342 if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
347 msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
349 cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID);
350 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
351 msg->u.head[3] = cpu_to_le32(0);
353 cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.
354 sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag);
355 msg->body[1] = cpu_to_le32(swlen);
356 msg->body[2] = cpu_to_le32(kxfer.sw_id);
357 msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
358 msg->body[4] = cpu_to_le32(buffer.phys);
360 osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
361 status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
363 if (status != I2O_POST_WAIT_OK) {
364 if (status != -ETIMEDOUT)
365 i2o_dma_free(&c->pdev->dev, &buffer);
367 osm_info("swul failed, DetailedStatus = %d\n", status);
371 if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
374 i2o_dma_free(&c->pdev->dev, &buffer);
383 static int i2o_cfg_swdel(unsigned long arg)
385 struct i2o_controller *c;
386 struct i2o_sw_xfer kxfer;
387 struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
388 struct i2o_message *msg;
392 if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
395 if (get_user(swlen, kxfer.swlen) < 0)
398 c = i2o_find_iop(kxfer.iop);
402 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
406 msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0);
408 cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID);
409 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
410 msg->u.head[3] = cpu_to_le32(0);
412 cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16);
413 msg->body[1] = cpu_to_le32(swlen);
414 msg->body[2] = cpu_to_le32(kxfer.sw_id);
416 token = i2o_msg_post_wait(c, msg, 10);
418 if (token != I2O_POST_WAIT_OK) {
419 osm_info("swdel failed, DetailedStatus = %d\n", token);
426 static int i2o_cfg_validate(unsigned long arg)
430 struct i2o_message *msg;
431 struct i2o_controller *c;
433 c = i2o_find_iop(iop);
437 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
441 msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
443 cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop);
444 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
445 msg->u.head[3] = cpu_to_le32(0);
447 token = i2o_msg_post_wait(c, msg, 10);
449 if (token != I2O_POST_WAIT_OK) {
450 osm_info("Can't validate configuration, ErrorStatus = %d\n",
458 static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp)
460 struct i2o_message *msg;
461 struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg;
462 struct i2o_evt_id kdesc;
463 struct i2o_controller *c;
464 struct i2o_device *d;
466 if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
470 c = i2o_find_iop(kdesc.iop);
475 d = i2o_iop_find_device(c, kdesc.tid);
479 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
483 msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
485 cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 |
487 msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
488 msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data));
489 msg->body[0] = cpu_to_le32(kdesc.evt_mask);
491 i2o_msg_post(c, msg);
496 static int i2o_cfg_evt_get(unsigned long arg, struct file *fp)
498 struct i2o_cfg_info *p = NULL;
499 struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg;
500 struct i2o_evt_get kget;
503 for (p = open_files; p; p = p->next)
504 if (p->q_id == (ulong) fp->private_data)
510 memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
511 MODINC(p->q_out, I2O_EVT_Q_LEN);
512 spin_lock_irqsave(&i2o_config_lock, flags);
514 kget.pending = p->q_len;
515 kget.lost = p->q_lost;
516 spin_unlock_irqrestore(&i2o_config_lock, flags);
518 if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
524 static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
527 struct i2o_cmd_passthru32 __user *cmd;
528 struct i2o_controller *c;
529 u32 __user *user_msg;
531 u32 __user *user_reply = NULL;
535 struct i2o_dma sg_list[SG_TABLESIZE];
540 i2o_status_block *sb;
541 struct i2o_message *msg;
544 cmd = (struct i2o_cmd_passthru32 __user *)arg;
546 if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
549 user_msg = compat_ptr(i);
551 c = i2o_find_iop(iop);
553 osm_debug("controller %d not found\n", iop);
557 sb = c->status_block.virt;
559 if (get_user(size, &user_msg[0])) {
560 osm_warn("unable to get size!\n");
565 if (size > sb->inbound_frame_size) {
566 osm_warn("size of message > inbound_frame_size");
570 user_reply = &user_msg[size];
572 size <<= 2; // Convert to bytes
574 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
579 /* Copy in the user's I2O command */
580 if (copy_from_user(msg, user_msg, size)) {
581 osm_warn("unable to copy user message\n");
584 i2o_dump_message(msg);
586 if (get_user(reply_size, &user_reply[0]) < 0)
593 reply = kzalloc(reply_size, GFP_KERNEL);
595 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
600 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
602 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
604 struct sg_simple_element *sg;
606 if (sg_offset * 4 >= size) {
611 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
614 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
615 if (sg_count > SG_TABLESIZE) {
616 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
622 for (i = 0; i < sg_count; i++) {
626 if (!(sg[i].flag_count & 0x10000000
627 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
629 "%s:Bad SG element %d - not simple (%x)\n",
630 c->name, i, sg[i].flag_count);
634 sg_size = sg[i].flag_count & 0xffffff;
635 p = &(sg_list[sg_index]);
636 /* Allocate memory for the transfer */
637 if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
639 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
640 c->name, sg_size, i, sg_count);
642 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, msg, 60);
668 reply[4] = ((u32) rcode) << 24;
669 goto sg_list_cleanup;
673 u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
674 /* Copy back the Scatter Gather buffers back to user space */
677 struct sg_simple_element *sg;
680 // re-acquire the original message to handle correctly the sg copy operation
681 memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
682 // get user msg size in u32s
683 if (get_user(size, &user_msg[0])) {
685 goto sg_list_cleanup;
689 /* Copy in the user's I2O command */
690 if (copy_from_user(rmsg, user_msg, size)) {
692 goto sg_list_cleanup;
695 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
698 sg = (struct sg_simple_element *)(rmsg + sg_offset);
699 for (j = 0; j < sg_count; j++) {
700 /* Copy out the SG list to user's buffer if necessary */
703 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
704 sg_size = sg[j].flag_count & 0xffffff;
707 ((void __user *)(u64) sg[j].addr_bus,
708 sg_list[j].virt, sg_size)) {
710 "%s: Could not copy %p TO user %x\n",
711 c->name, sg_list[j].virt,
714 goto sg_list_cleanup;
721 /* Copy back the reply to user space */
723 // we wrote our own values for context - now restore the user supplied ones
724 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
726 "%s: Could not copy message context FROM user\n",
730 if (copy_to_user(user_reply, reply, reply_size)) {
732 "%s: Could not copy reply TO user\n", c->name);
736 for (i = 0; i < sg_index; i++)
737 i2o_dma_free(&c->pdev->dev, &sg_list[i]);
747 static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
754 ret = i2o_cfg_ioctl(NULL, file, cmd, arg);
757 ret = i2o_cfg_passthru32(file, cmd, arg);
769 #ifdef CONFIG_I2O_EXT_ADAPTEC
770 static int i2o_cfg_passthru(unsigned long arg)
772 struct i2o_cmd_passthru __user *cmd =
773 (struct i2o_cmd_passthru __user *)arg;
774 struct i2o_controller *c;
775 u32 __user *user_msg;
777 u32 __user *user_reply = NULL;
781 struct i2o_dma sg_list[SG_TABLESIZE];
786 i2o_status_block *sb;
787 struct i2o_message *msg;
790 if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
793 c = i2o_find_iop(iop);
795 osm_warn("controller %d not found\n", iop);
799 sb = c->status_block.virt;
801 if (get_user(size, &user_msg[0]))
805 if (size > sb->inbound_frame_size) {
806 osm_warn("size of message > inbound_frame_size");
810 user_reply = &user_msg[size];
812 size <<= 2; // Convert to bytes
814 msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
819 /* Copy in the user's I2O command */
820 if (copy_from_user(msg, user_msg, size))
823 if (get_user(reply_size, &user_reply[0]) < 0)
829 reply = kzalloc(reply_size, GFP_KERNEL);
831 printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
837 sg_offset = (msg->u.head[0] >> 4) & 0x0f;
839 memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
841 struct sg_simple_element *sg;
844 if (sg_offset * 4 >= size) {
849 sg = (struct sg_simple_element *)((&msg->u.head[0]) +
852 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
853 if (sg_count > SG_TABLESIZE) {
854 printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
860 for (i = 0; i < sg_count; i++) {
863 if (!(sg[i].flag_count & 0x10000000
864 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
866 "%s:Bad SG element %d - not simple (%x)\n",
867 c->name, i, sg[i].flag_count);
869 goto sg_list_cleanup;
871 sg_size = sg[i].flag_count & 0xffffff;
872 p = &(sg_list[sg_index]);
873 if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
874 /* Allocate memory for the transfer */
876 "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
877 c->name, sg_size, i, sg_count);
879 goto sg_list_cleanup;
882 /* Copy in the user's SG buffer if necessary */
884 flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
887 (p->virt, (void __user *)sg[i].addr_bus,
890 "%s: Could not copy SG buf %d FROM user\n",
893 goto sg_list_cleanup;
896 sg[i].addr_bus = p->phys;
900 rcode = i2o_msg_post_wait(c, msg, 60);
903 reply[4] = ((u32) rcode) << 24;
904 goto sg_list_cleanup;
908 u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
909 /* Copy back the Scatter Gather buffers back to user space */
912 struct sg_simple_element *sg;
915 // re-acquire the original message to handle correctly the sg copy operation
916 memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
917 // get user msg size in u32s
918 if (get_user(size, &user_msg[0])) {
920 goto sg_list_cleanup;
924 /* Copy in the user's I2O command */
925 if (copy_from_user(rmsg, user_msg, size)) {
927 goto sg_list_cleanup;
930 (size - sg_offset * 4) / sizeof(struct sg_simple_element);
933 sg = (struct sg_simple_element *)(rmsg + sg_offset);
934 for (j = 0; j < sg_count; j++) {
935 /* Copy out the SG list to user's buffer if necessary */
938 flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
939 sg_size = sg[j].flag_count & 0xffffff;
942 ((void __user *)sg[j].addr_bus, sg_list[j].virt,
945 "%s: Could not copy %p TO user %x\n",
946 c->name, sg_list[j].virt,
949 goto sg_list_cleanup;
956 /* Copy back the reply to user space */
958 // we wrote our own values for context - now restore the user supplied ones
959 if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
961 "%s: Could not copy message context FROM user\n",
965 if (copy_to_user(user_reply, reply, reply_size)) {
967 "%s: Could not copy reply TO user\n", c->name);
972 for (i = 0; i < sg_index; i++)
973 i2o_dma_free(&c->pdev->dev, &sg_list[i]);
987 static int i2o_cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
994 ret = i2o_cfg_getiops(arg);
998 ret = i2o_cfg_gethrt(arg);
1002 ret = i2o_cfg_getlct(arg);
1006 ret = i2o_cfg_parms(arg, I2OPARMSET);
1010 ret = i2o_cfg_parms(arg, I2OPARMGET);
1014 ret = i2o_cfg_swdl(arg);
1018 ret = i2o_cfg_swul(arg);
1022 ret = i2o_cfg_swdel(arg);
1026 ret = i2o_cfg_validate(arg);
1030 ret = i2o_cfg_evt_reg(arg, fp);
1034 ret = i2o_cfg_evt_get(arg, fp);
1037 #ifdef CONFIG_I2O_EXT_ADAPTEC
1039 ret = i2o_cfg_passthru(arg);
1044 osm_debug("unknown ioctl called!\n");
1051 static int cfg_open(struct inode *inode, struct file *file)
1053 struct i2o_cfg_info *tmp =
1054 (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info),
1056 unsigned long flags;
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);
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;
1087 for (p = open_files; p; p = p->next)
1092 ret = fasync_helper(fd, fp, on, &p->fasync);
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;
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);
1118 static const struct file_operations config_fops = {
1119 .owner = THIS_MODULE,
1120 .llseek = no_llseek,
1121 .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");