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Diffstat (limited to 'toolchain/kernel-headers/linux-2.6.20.4-ipmisensors-20070314-1214.patch')
-rw-r--r--toolchain/kernel-headers/linux-2.6.20.4-ipmisensors-20070314-1214.patch4189
1 files changed, 0 insertions, 4189 deletions
diff --git a/toolchain/kernel-headers/linux-2.6.20.4-ipmisensors-20070314-1214.patch b/toolchain/kernel-headers/linux-2.6.20.4-ipmisensors-20070314-1214.patch
index 506fcb4c7..aca57c37b 100644
--- a/toolchain/kernel-headers/linux-2.6.20.4-ipmisensors-20070314-1214.patch
+++ b/toolchain/kernel-headers/linux-2.6.20.4-ipmisensors-20070314-1214.patch
@@ -31,4195 +31,6 @@ diff -rduNp linux-2.6.20.3.orig/drivers/char/ipmi/ipmi_msghandler.c linux-2.6.20
EXPORT_SYMBOL(ipmi_user_set_run_to_completion);
EXPORT_SYMBOL(ipmi_free_recv_msg);
+EXPORT_SYMBOL(ipmi_get_bmcdevice);
-diff -rduNp linux-2.6.20.3.orig/drivers/char/ipmi/ipmi_msghandler.c.orig linux-2.6.20.3/drivers/char/ipmi/ipmi_msghandler.c.orig
---- linux-2.6.20.3.orig/drivers/char/ipmi/ipmi_msghandler.c.orig 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.20.3/drivers/char/ipmi/ipmi_msghandler.c.orig 2007-03-14 14:22:33.000000000 +0100
-@@ -0,0 +1,4185 @@
-+/*
-+ * ipmi_msghandler.c
-+ *
-+ * Incoming and outgoing message routing for an IPMI interface.
-+ *
-+ * Author: MontaVista Software, Inc.
-+ * Corey Minyard <minyard@mvista.com>
-+ * source@mvista.com
-+ *
-+ * Copyright 2002 MontaVista Software Inc.
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License as published by the
-+ * Free Software Foundation; either version 2 of the License, or (at your
-+ * option) any later version.
-+ *
-+ *
-+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
-+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
-+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
-+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-+ *
-+ * You should have received a copy of the GNU General Public License along
-+ * with this program; if not, write to the Free Software Foundation, Inc.,
-+ * 675 Mass Ave, Cambridge, MA 02139, USA.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/errno.h>
-+#include <asm/system.h>
-+#include <linux/sched.h>
-+#include <linux/poll.h>
-+#include <linux/spinlock.h>
-+#include <linux/mutex.h>
-+#include <linux/slab.h>
-+#include <linux/ipmi.h>
-+#include <linux/ipmi_smi.h>
-+#include <linux/notifier.h>
-+#include <linux/init.h>
-+#include <linux/proc_fs.h>
-+#include <linux/rcupdate.h>
-+
-+#define PFX "IPMI message handler: "
-+
-+#define IPMI_DRIVER_VERSION "39.1"
-+
-+static struct ipmi_recv_msg *ipmi_alloc_recv_msg(void);
-+static int ipmi_init_msghandler(void);
-+
-+static int initialized;
-+
-+#ifdef CONFIG_PROC_FS
-+static struct proc_dir_entry *proc_ipmi_root;
-+#endif /* CONFIG_PROC_FS */
-+
-+/* Remain in auto-maintenance mode for this amount of time (in ms). */
-+#define IPMI_MAINTENANCE_MODE_TIMEOUT 30000
-+
-+#define MAX_EVENTS_IN_QUEUE 25
-+
-+/* Don't let a message sit in a queue forever, always time it with at lest
-+ the max message timer. This is in milliseconds. */
-+#define MAX_MSG_TIMEOUT 60000
-+
-+
-+/*
-+ * The main "user" data structure.
-+ */
-+struct ipmi_user
-+{
-+ struct list_head link;
-+
-+ /* Set to "0" when the user is destroyed. */
-+ int valid;
-+
-+ struct kref refcount;
-+
-+ /* The upper layer that handles receive messages. */
-+ struct ipmi_user_hndl *handler;
-+ void *handler_data;
-+
-+ /* The interface this user is bound to. */
-+ ipmi_smi_t intf;
-+
-+ /* Does this interface receive IPMI events? */
-+ int gets_events;
-+};
-+
-+struct cmd_rcvr
-+{
-+ struct list_head link;
-+
-+ ipmi_user_t user;
-+ unsigned char netfn;
-+ unsigned char cmd;
-+ unsigned int chans;
-+
-+ /*
-+ * This is used to form a linked lised during mass deletion.
-+ * Since this is in an RCU list, we cannot use the link above
-+ * or change any data until the RCU period completes. So we
-+ * use this next variable during mass deletion so we can have
-+ * a list and don't have to wait and restart the search on
-+ * every individual deletion of a command. */
-+ struct cmd_rcvr *next;
-+};
-+
-+struct seq_table
-+{
-+ unsigned int inuse : 1;
-+ unsigned int broadcast : 1;
-+
-+ unsigned long timeout;
-+ unsigned long orig_timeout;
-+ unsigned int retries_left;
-+
-+ /* To verify on an incoming send message response that this is
-+ the message that the response is for, we keep a sequence id
-+ and increment it every time we send a message. */
-+ long seqid;
-+
-+ /* This is held so we can properly respond to the message on a
-+ timeout, and it is used to hold the temporary data for
-+ retransmission, too. */
-+ struct ipmi_recv_msg *recv_msg;
-+};
-+
-+/* Store the information in a msgid (long) to allow us to find a
-+ sequence table entry from the msgid. */
-+#define STORE_SEQ_IN_MSGID(seq, seqid) (((seq&0xff)<<26) | (seqid&0x3ffffff))
-+
-+#define GET_SEQ_FROM_MSGID(msgid, seq, seqid) \
-+ do { \
-+ seq = ((msgid >> 26) & 0x3f); \
-+ seqid = (msgid & 0x3fffff); \
-+ } while (0)
-+
-+#define NEXT_SEQID(seqid) (((seqid) + 1) & 0x3fffff)
-+
-+struct ipmi_channel
-+{
-+ unsigned char medium;
-+ unsigned char protocol;
-+
-+ /* My slave address. This is initialized to IPMI_BMC_SLAVE_ADDR,
-+ but may be changed by the user. */
-+ unsigned char address;
-+
-+ /* My LUN. This should generally stay the SMS LUN, but just in
-+ case... */
-+ unsigned char lun;
-+};
-+
-+#ifdef CONFIG_PROC_FS
-+struct ipmi_proc_entry
-+{
-+ char *name;
-+ struct ipmi_proc_entry *next;
-+};
-+#endif
-+
-+struct bmc_device
-+{
-+ struct platform_device *dev;
-+ struct ipmi_device_id id;
-+ unsigned char guid[16];
-+ int guid_set;
-+
-+ struct kref refcount;
-+
-+ /* bmc device attributes */
-+ struct device_attribute device_id_attr;
-+ struct device_attribute provides_dev_sdrs_attr;
-+ struct device_attribute revision_attr;
-+ struct device_attribute firmware_rev_attr;
-+ struct device_attribute version_attr;
-+ struct device_attribute add_dev_support_attr;
-+ struct device_attribute manufacturer_id_attr;
-+ struct device_attribute product_id_attr;
-+ struct device_attribute guid_attr;
-+ struct device_attribute aux_firmware_rev_attr;
-+};
-+
-+#define IPMI_IPMB_NUM_SEQ 64
-+#define IPMI_MAX_CHANNELS 16
-+struct ipmi_smi
-+{
-+ /* What interface number are we? */
-+ int intf_num;
-+
-+ struct kref refcount;
-+
-+ /* Used for a list of interfaces. */
-+ struct list_head link;
-+
-+ /* The list of upper layers that are using me. seq_lock
-+ * protects this. */
-+ struct list_head users;
-+
-+ /* Information to supply to users. */
-+ unsigned char ipmi_version_major;
-+ unsigned char ipmi_version_minor;
-+
-+ /* Used for wake ups at startup. */
-+ wait_queue_head_t waitq;
-+
-+ struct bmc_device *bmc;
-+ char *my_dev_name;
-+ char *sysfs_name;
-+
-+ /* This is the lower-layer's sender routine. Note that you
-+ * must either be holding the ipmi_interfaces_mutex or be in
-+ * an umpreemptible region to use this. You must fetch the
-+ * value into a local variable and make sure it is not NULL. */
-+ struct ipmi_smi_handlers *handlers;
-+ void *send_info;
-+
-+#ifdef CONFIG_PROC_FS
-+ /* A list of proc entries for this interface. This does not
-+ need a lock, only one thread creates it and only one thread
-+ destroys it. */
-+ spinlock_t proc_entry_lock;
-+ struct ipmi_proc_entry *proc_entries;
-+#endif
-+
-+ /* Driver-model device for the system interface. */
-+ struct device *si_dev;
-+
-+ /* A table of sequence numbers for this interface. We use the
-+ sequence numbers for IPMB messages that go out of the
-+ interface to match them up with their responses. A routine
-+ is called periodically to time the items in this list. */
-+ spinlock_t seq_lock;
-+ struct seq_table seq_table[IPMI_IPMB_NUM_SEQ];
-+ int curr_seq;
-+
-+ /* Messages that were delayed for some reason (out of memory,
-+ for instance), will go in here to be processed later in a
-+ periodic timer interrupt. */
-+ spinlock_t waiting_msgs_lock;
-+ struct list_head waiting_msgs;
-+
-+ /* The list of command receivers that are registered for commands
-+ on this interface. */
-+ struct mutex cmd_rcvrs_mutex;
-+ struct list_head cmd_rcvrs;
-+
-+ /* Events that were queues because no one was there to receive
-+ them. */
-+ spinlock_t events_lock; /* For dealing with event stuff. */
-+ struct list_head waiting_events;
-+ unsigned int waiting_events_count; /* How many events in queue? */
-+ int delivering_events;
-+
-+ /* The event receiver for my BMC, only really used at panic
-+ shutdown as a place to store this. */
-+ unsigned char event_receiver;
-+ unsigned char event_receiver_lun;
-+ unsigned char local_sel_device;
-+ unsigned char local_event_generator;
-+
-+ /* For handling of maintenance mode. */
-+ int maintenance_mode;
-+ int maintenance_mode_enable;
-+ int auto_maintenance_timeout;
-+ spinlock_t maintenance_mode_lock; /* Used in a timer... */
-+
-+ /* A cheap hack, if this is non-null and a message to an
-+ interface comes in with a NULL user, call this routine with
-+ it. Note that the message will still be freed by the
-+ caller. This only works on the system interface. */
-+ void (*null_user_handler)(ipmi_smi_t intf, struct ipmi_recv_msg *msg);
-+
-+ /* When we are scanning the channels for an SMI, this will
-+ tell which channel we are scanning. */
-+ int curr_channel;
-+
-+ /* Channel information */
-+ struct ipmi_channel channels[IPMI_MAX_CHANNELS];
-+
-+ /* Proc FS stuff. */
-+ struct proc_dir_entry *proc_dir;
-+ char proc_dir_name[10];
-+
-+ spinlock_t counter_lock; /* For making counters atomic. */
-+
-+ /* Commands we got that were invalid. */
-+ unsigned int sent_invalid_commands;
-+
-+ /* Commands we sent to the MC. */
-+ unsigned int sent_local_commands;
-+ /* Responses from the MC that were delivered to a user. */
-+ unsigned int handled_local_responses;
-+ /* Responses from the MC that were not delivered to a user. */
-+ unsigned int unhandled_local_responses;
-+
-+ /* Commands we sent out to the IPMB bus. */
-+ unsigned int sent_ipmb_commands;
-+ /* Commands sent on the IPMB that had errors on the SEND CMD */
-+ unsigned int sent_ipmb_command_errs;
-+ /* Each retransmit increments this count. */
-+ unsigned int retransmitted_ipmb_commands;
-+ /* When a message times out (runs out of retransmits) this is
-+ incremented. */
-+ unsigned int timed_out_ipmb_commands;
-+
-+ /* This is like above, but for broadcasts. Broadcasts are
-+ *not* included in the above count (they are expected to
-+ time out). */
-+ unsigned int timed_out_ipmb_broadcasts;
-+
-+ /* Responses I have sent to the IPMB bus. */
-+ unsigned int sent_ipmb_responses;
-+
-+ /* The response was delivered to the user. */
-+ unsigned int handled_ipmb_responses;
-+ /* The response had invalid data in it. */
-+ unsigned int invalid_ipmb_responses;
-+ /* The response didn't have anyone waiting for it. */
-+ unsigned int unhandled_ipmb_responses;
-+
-+ /* Commands we sent out to the IPMB bus. */
-+ unsigned int sent_lan_commands;
-+ /* Commands sent on the IPMB that had errors on the SEND CMD */
-+ unsigned int sent_lan_command_errs;
-+ /* Each retransmit increments this count. */
-+ unsigned int retransmitted_lan_commands;
-+ /* When a message times out (runs out of retransmits) this is
-+ incremented. */
-+ unsigned int timed_out_lan_commands;
-+
-+ /* Responses I have sent to the IPMB bus. */
-+ unsigned int sent_lan_responses;
-+
-+ /* The response was delivered to the user. */
-+ unsigned int handled_lan_responses;
-+ /* The response had invalid data in it. */
-+ unsigned int invalid_lan_responses;
-+ /* The response didn't have anyone waiting for it. */
-+ unsigned int unhandled_lan_responses;
-+
-+ /* The command was delivered to the user. */
-+ unsigned int handled_commands;
-+ /* The command had invalid data in it. */
-+ unsigned int invalid_commands;
-+ /* The command didn't have anyone waiting for it. */
-+ unsigned int unhandled_commands;
-+
-+ /* Invalid data in an event. */
-+ unsigned int invalid_events;
-+ /* Events that were received with the proper format. */
-+ unsigned int events;
-+};
-+#define to_si_intf_from_dev(device) container_of(device, struct ipmi_smi, dev)
-+
-+/**
-+ * The driver model view of the IPMI messaging driver.
-+ */
-+static struct device_driver ipmidriver = {
-+ .name = "ipmi",
-+ .bus = &platform_bus_type
-+};
-+static DEFINE_MUTEX(ipmidriver_mutex);
-+
-+static struct list_head ipmi_interfaces = LIST_HEAD_INIT(ipmi_interfaces);
-+static DEFINE_MUTEX(ipmi_interfaces_mutex);
-+
-+/* List of watchers that want to know when smi's are added and
-+ deleted. */
-+static struct list_head smi_watchers = LIST_HEAD_INIT(smi_watchers);
-+static DEFINE_MUTEX(smi_watchers_mutex);
-+
-+
-+static void free_recv_msg_list(struct list_head *q)
-+{
-+ struct ipmi_recv_msg *msg, *msg2;
-+
-+ list_for_each_entry_safe(msg, msg2, q, link) {
-+ list_del(&msg->link);
-+ ipmi_free_recv_msg(msg);
-+ }
-+}
-+
-+static void free_smi_msg_list(struct list_head *q)
-+{
-+ struct ipmi_smi_msg *msg, *msg2;
-+
-+ list_for_each_entry_safe(msg, msg2, q, link) {
-+ list_del(&msg->link);
-+ ipmi_free_smi_msg(msg);
-+ }
-+}
-+
-+static void clean_up_interface_data(ipmi_smi_t intf)
-+{
-+ int i;
-+ struct cmd_rcvr *rcvr, *rcvr2;
-+ struct list_head list;
-+
-+ free_smi_msg_list(&intf->waiting_msgs);
-+ free_recv_msg_list(&intf->waiting_events);
-+
-+ /* Wholesale remove all the entries from the list in the
-+ * interface and wait for RCU to know that none are in use. */
-+ mutex_lock(&intf->cmd_rcvrs_mutex);
-+ list_add_rcu(&list, &intf->cmd_rcvrs);
-+ list_del_rcu(&intf->cmd_rcvrs);
-+ mutex_unlock(&intf->cmd_rcvrs_mutex);
-+ synchronize_rcu();
-+
-+ list_for_each_entry_safe(rcvr, rcvr2, &list, link)
-+ kfree(rcvr);
-+
-+ for (i = 0; i < IPMI_IPMB_NUM_SEQ; i++) {
-+ if ((intf->seq_table[i].inuse)
-+ && (intf->seq_table[i].recv_msg))
-+ {
-+ ipmi_free_recv_msg(intf->seq_table[i].recv_msg);
-+ }
-+ }
-+}
-+
-+static void intf_free(struct kref *ref)
-+{
-+ ipmi_smi_t intf = container_of(ref, struct ipmi_smi, refcount);
-+
-+ clean_up_interface_data(intf);
-+ kfree(intf);
-+}
-+
-+struct watcher_entry {
-+ int intf_num;
-+ ipmi_smi_t intf;
-+ struct list_head link;
-+};
-+
-+int ipmi_smi_watcher_register(struct ipmi_smi_watcher *watcher)
-+{
-+ ipmi_smi_t intf;
-+ struct list_head to_deliver = LIST_HEAD_INIT(to_deliver);
-+ struct watcher_entry *e, *e2;
-+
-+ mutex_lock(&smi_watchers_mutex);
-+
-+ mutex_lock(&ipmi_interfaces_mutex);
-+
-+ /* Build a list of things to deliver. */
-+ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) {
-+ if (intf->intf_num == -1)
-+ continue;
-+ e = kmalloc(sizeof(*e), GFP_KERNEL);
-+ if (!e)
-+ goto out_err;
-+ kref_get(&intf->refcount);
-+ e->intf = intf;
-+ e->intf_num = intf->intf_num;
-+ list_add_tail(&e->link, &to_deliver);
-+ }
-+
-+ /* We will succeed, so add it to the list. */
-+ list_add(&watcher->link, &smi_watchers);
-+
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+
-+ list_for_each_entry_safe(e, e2, &to_deliver, link) {
-+ list_del(&e->link);
-+ watcher->new_smi(e->intf_num, e->intf->si_dev);
-+ kref_put(&e->intf->refcount, intf_free);
-+ kfree(e);
-+ }
-+
-+ mutex_unlock(&smi_watchers_mutex);
-+
-+ return 0;
-+
-+ out_err:
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+ mutex_unlock(&smi_watchers_mutex);
-+ list_for_each_entry_safe(e, e2, &to_deliver, link) {
-+ list_del(&e->link);
-+ kref_put(&e->intf->refcount, intf_free);
-+ kfree(e);
-+ }
-+ return -ENOMEM;
-+}
-+
-+int ipmi_smi_watcher_unregister(struct ipmi_smi_watcher *watcher)
-+{
-+ mutex_lock(&smi_watchers_mutex);
-+ list_del(&(watcher->link));
-+ mutex_unlock(&smi_watchers_mutex);
-+ return 0;
-+}
-+
-+/*
-+ * Must be called with smi_watchers_mutex held.
-+ */
-+static void
-+call_smi_watchers(int i, struct device *dev)
-+{
-+ struct ipmi_smi_watcher *w;
-+
-+ list_for_each_entry(w, &smi_watchers, link) {
-+ if (try_module_get(w->owner)) {
-+ w->new_smi(i, dev);
-+ module_put(w->owner);
-+ }
-+ }
-+}
-+
-+static int
-+ipmi_addr_equal(struct ipmi_addr *addr1, struct ipmi_addr *addr2)
-+{
-+ if (addr1->addr_type != addr2->addr_type)
-+ return 0;
-+
-+ if (addr1->channel != addr2->channel)
-+ return 0;
-+
-+ if (addr1->addr_type == IPMI_SYSTEM_INTERFACE_ADDR_TYPE) {
-+ struct ipmi_system_interface_addr *smi_addr1
-+ = (struct ipmi_system_interface_addr *) addr1;
-+ struct ipmi_system_interface_addr *smi_addr2
-+ = (struct ipmi_system_interface_addr *) addr2;
-+ return (smi_addr1->lun == smi_addr2->lun);
-+ }
-+
-+ if ((addr1->addr_type == IPMI_IPMB_ADDR_TYPE)
-+ || (addr1->addr_type == IPMI_IPMB_BROADCAST_ADDR_TYPE))
-+ {
-+ struct ipmi_ipmb_addr *ipmb_addr1
-+ = (struct ipmi_ipmb_addr *) addr1;
-+ struct ipmi_ipmb_addr *ipmb_addr2
-+ = (struct ipmi_ipmb_addr *) addr2;
-+
-+ return ((ipmb_addr1->slave_addr == ipmb_addr2->slave_addr)
-+ && (ipmb_addr1->lun == ipmb_addr2->lun));
-+ }
-+
-+ if (addr1->addr_type == IPMI_LAN_ADDR_TYPE) {
-+ struct ipmi_lan_addr *lan_addr1
-+ = (struct ipmi_lan_addr *) addr1;
-+ struct ipmi_lan_addr *lan_addr2
-+ = (struct ipmi_lan_addr *) addr2;
-+
-+ return ((lan_addr1->remote_SWID == lan_addr2->remote_SWID)
-+ && (lan_addr1->local_SWID == lan_addr2->local_SWID)
-+ && (lan_addr1->session_handle
-+ == lan_addr2->session_handle)
-+ && (lan_addr1->lun == lan_addr2->lun));
-+ }
-+
-+ return 1;
-+}
-+
-+int ipmi_validate_addr(struct ipmi_addr *addr, int len)
-+{
-+ if (len < sizeof(struct ipmi_system_interface_addr)) {
-+ return -EINVAL;
-+ }
-+
-+ if (addr->addr_type == IPMI_SYSTEM_INTERFACE_ADDR_TYPE) {
-+ if (addr->channel != IPMI_BMC_CHANNEL)
-+ return -EINVAL;
-+ return 0;
-+ }
-+
-+ if ((addr->channel == IPMI_BMC_CHANNEL)
-+ || (addr->channel >= IPMI_MAX_CHANNELS)
-+ || (addr->channel < 0))
-+ return -EINVAL;
-+
-+ if ((addr->addr_type == IPMI_IPMB_ADDR_TYPE)
-+ || (addr->addr_type == IPMI_IPMB_BROADCAST_ADDR_TYPE))
-+ {
-+ if (len < sizeof(struct ipmi_ipmb_addr)) {
-+ return -EINVAL;
-+ }
-+ return 0;
-+ }
-+
-+ if (addr->addr_type == IPMI_LAN_ADDR_TYPE) {
-+ if (len < sizeof(struct ipmi_lan_addr)) {
-+ return -EINVAL;
-+ }
-+ return 0;
-+ }
-+
-+ return -EINVAL;
-+}
-+
-+unsigned int ipmi_addr_length(int addr_type)
-+{
-+ if (addr_type == IPMI_SYSTEM_INTERFACE_ADDR_TYPE)
-+ return sizeof(struct ipmi_system_interface_addr);
-+
-+ if ((addr_type == IPMI_IPMB_ADDR_TYPE)
-+ || (addr_type == IPMI_IPMB_BROADCAST_ADDR_TYPE))
-+ {
-+ return sizeof(struct ipmi_ipmb_addr);
-+ }
-+
-+ if (addr_type == IPMI_LAN_ADDR_TYPE)
-+ return sizeof(struct ipmi_lan_addr);
-+
-+ return 0;
-+}
-+
-+static void deliver_response(struct ipmi_recv_msg *msg)
-+{
-+ if (!msg->user) {
-+ ipmi_smi_t intf = msg->user_msg_data;
-+ unsigned long flags;
-+
-+ /* Special handling for NULL users. */
-+ if (intf->null_user_handler) {
-+ intf->null_user_handler(intf, msg);
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->handled_local_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ } else {
-+ /* No handler, so give up. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->unhandled_local_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ }
-+ ipmi_free_recv_msg(msg);
-+ } else {
-+ ipmi_user_t user = msg->user;
-+ user->handler->ipmi_recv_hndl(msg, user->handler_data);
-+ }
-+}
-+
-+static void
-+deliver_err_response(struct ipmi_recv_msg *msg, int err)
-+{
-+ msg->recv_type = IPMI_RESPONSE_RECV_TYPE;
-+ msg->msg_data[0] = err;
-+ msg->msg.netfn |= 1; /* Convert to a response. */
-+ msg->msg.data_len = 1;
-+ msg->msg.data = msg->msg_data;
-+ deliver_response(msg);
-+}
-+
-+/* Find the next sequence number not being used and add the given
-+ message with the given timeout to the sequence table. This must be
-+ called with the interface's seq_lock held. */
-+static int intf_next_seq(ipmi_smi_t intf,
-+ struct ipmi_recv_msg *recv_msg,
-+ unsigned long timeout,
-+ int retries,
-+ int broadcast,
-+ unsigned char *seq,
-+ long *seqid)
-+{
-+ int rv = 0;
-+ unsigned int i;
-+
-+ for (i = intf->curr_seq;
-+ (i+1)%IPMI_IPMB_NUM_SEQ != intf->curr_seq;
-+ i = (i+1)%IPMI_IPMB_NUM_SEQ)
-+ {
-+ if (!intf->seq_table[i].inuse)
-+ break;
-+ }
-+
-+ if (!intf->seq_table[i].inuse) {
-+ intf->seq_table[i].recv_msg = recv_msg;
-+
-+ /* Start with the maximum timeout, when the send response
-+ comes in we will start the real timer. */
-+ intf->seq_table[i].timeout = MAX_MSG_TIMEOUT;
-+ intf->seq_table[i].orig_timeout = timeout;
-+ intf->seq_table[i].retries_left = retries;
-+ intf->seq_table[i].broadcast = broadcast;
-+ intf->seq_table[i].inuse = 1;
-+ intf->seq_table[i].seqid = NEXT_SEQID(intf->seq_table[i].seqid);
-+ *seq = i;
-+ *seqid = intf->seq_table[i].seqid;
-+ intf->curr_seq = (i+1)%IPMI_IPMB_NUM_SEQ;
-+ } else {
-+ rv = -EAGAIN;
-+ }
-+
-+ return rv;
-+}
-+
-+/* Return the receive message for the given sequence number and
-+ release the sequence number so it can be reused. Some other data
-+ is passed in to be sure the message matches up correctly (to help
-+ guard against message coming in after their timeout and the
-+ sequence number being reused). */
-+static int intf_find_seq(ipmi_smi_t intf,
-+ unsigned char seq,
-+ short channel,
-+ unsigned char cmd,
-+ unsigned char netfn,
-+ struct ipmi_addr *addr,
-+ struct ipmi_recv_msg **recv_msg)
-+{
-+ int rv = -ENODEV;
-+ unsigned long flags;
-+
-+ if (seq >= IPMI_IPMB_NUM_SEQ)
-+ return -EINVAL;
-+
-+ spin_lock_irqsave(&(intf->seq_lock), flags);
-+ if (intf->seq_table[seq].inuse) {
-+ struct ipmi_recv_msg *msg = intf->seq_table[seq].recv_msg;
-+
-+ if ((msg->addr.channel == channel)
-+ && (msg->msg.cmd == cmd)
-+ && (msg->msg.netfn == netfn)
-+ && (ipmi_addr_equal(addr, &(msg->addr))))
-+ {
-+ *recv_msg = msg;
-+ intf->seq_table[seq].inuse = 0;
-+ rv = 0;
-+ }
-+ }
-+ spin_unlock_irqrestore(&(intf->seq_lock), flags);
-+
-+ return rv;
-+}
-+
-+
-+/* Start the timer for a specific sequence table entry. */
-+static int intf_start_seq_timer(ipmi_smi_t intf,
-+ long msgid)
-+{
-+ int rv = -ENODEV;
-+ unsigned long flags;
-+ unsigned char seq;
-+ unsigned long seqid;
-+
-+
-+ GET_SEQ_FROM_MSGID(msgid, seq, seqid);
-+
-+ spin_lock_irqsave(&(intf->seq_lock), flags);
-+ /* We do this verification because the user can be deleted
-+ while a message is outstanding. */
-+ if ((intf->seq_table[seq].inuse)
-+ && (intf->seq_table[seq].seqid == seqid))
-+ {
-+ struct seq_table *ent = &(intf->seq_table[seq]);
-+ ent->timeout = ent->orig_timeout;
-+ rv = 0;
-+ }
-+ spin_unlock_irqrestore(&(intf->seq_lock), flags);
-+
-+ return rv;
-+}
-+
-+/* Got an error for the send message for a specific sequence number. */
-+static int intf_err_seq(ipmi_smi_t intf,
-+ long msgid,
-+ unsigned int err)
-+{
-+ int rv = -ENODEV;
-+ unsigned long flags;
-+ unsigned char seq;
-+ unsigned long seqid;
-+ struct ipmi_recv_msg *msg = NULL;
-+
-+
-+ GET_SEQ_FROM_MSGID(msgid, seq, seqid);
-+
-+ spin_lock_irqsave(&(intf->seq_lock), flags);
-+ /* We do this verification because the user can be deleted
-+ while a message is outstanding. */
-+ if ((intf->seq_table[seq].inuse)
-+ && (intf->seq_table[seq].seqid == seqid))
-+ {
-+ struct seq_table *ent = &(intf->seq_table[seq]);
-+
-+ ent->inuse = 0;
-+ msg = ent->recv_msg;
-+ rv = 0;
-+ }
-+ spin_unlock_irqrestore(&(intf->seq_lock), flags);
-+
-+ if (msg)
-+ deliver_err_response(msg, err);
-+
-+ return rv;
-+}
-+
-+
-+int ipmi_create_user(unsigned int if_num,
-+ struct ipmi_user_hndl *handler,
-+ void *handler_data,
-+ ipmi_user_t *user)
-+{
-+ unsigned long flags;
-+ ipmi_user_t new_user;
-+ int rv = 0;
-+ ipmi_smi_t intf;
-+
-+ /* There is no module usecount here, because it's not
-+ required. Since this can only be used by and called from
-+ other modules, they will implicitly use this module, and
-+ thus this can't be removed unless the other modules are
-+ removed. */
-+
-+ if (handler == NULL)
-+ return -EINVAL;
-+
-+ /* Make sure the driver is actually initialized, this handles
-+ problems with initialization order. */
-+ if (!initialized) {
-+ rv = ipmi_init_msghandler();
-+ if (rv)
-+ return rv;
-+
-+ /* The init code doesn't return an error if it was turned
-+ off, but it won't initialize. Check that. */
-+ if (!initialized)
-+ return -ENODEV;
-+ }
-+
-+ new_user = kmalloc(sizeof(*new_user), GFP_KERNEL);
-+ if (!new_user)
-+ return -ENOMEM;
-+
-+ mutex_lock(&ipmi_interfaces_mutex);
-+ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) {
-+ if (intf->intf_num == if_num)
-+ goto found;
-+ }
-+ /* Not found, return an error */
-+ rv = -EINVAL;
-+ goto out_kfree;
-+
-+ found:
-+ /* Note that each existing user holds a refcount to the interface. */
-+ kref_get(&intf->refcount);
-+
-+ kref_init(&new_user->refcount);
-+ new_user->handler = handler;
-+ new_user->handler_data = handler_data;
-+ new_user->intf = intf;
-+ new_user->gets_events = 0;
-+
-+ if (!try_module_get(intf->handlers->owner)) {
-+ rv = -ENODEV;
-+ goto out_kref;
-+ }
-+
-+ if (intf->handlers->inc_usecount) {
-+ rv = intf->handlers->inc_usecount(intf->send_info);
-+ if (rv) {
-+ module_put(intf->handlers->owner);
-+ goto out_kref;
-+ }
-+ }
-+
-+ /* Hold the lock so intf->handlers is guaranteed to be good
-+ * until now */
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+
-+ new_user->valid = 1;
-+ spin_lock_irqsave(&intf->seq_lock, flags);
-+ list_add_rcu(&new_user->link, &intf->users);
-+ spin_unlock_irqrestore(&intf->seq_lock, flags);
-+ *user = new_user;
-+ return 0;
-+
-+out_kref:
-+ kref_put(&intf->refcount, intf_free);
-+out_kfree:
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+ kfree(new_user);
-+ return rv;
-+}
-+
-+static void free_user(struct kref *ref)
-+{
-+ ipmi_user_t user = container_of(ref, struct ipmi_user, refcount);
-+ kfree(user);
-+}
-+
-+int ipmi_destroy_user(ipmi_user_t user)
-+{
-+ ipmi_smi_t intf = user->intf;
-+ int i;
-+ unsigned long flags;
-+ struct cmd_rcvr *rcvr;
-+ struct cmd_rcvr *rcvrs = NULL;
-+
-+ user->valid = 0;
-+
-+ /* Remove the user from the interface's sequence table. */
-+ spin_lock_irqsave(&intf->seq_lock, flags);
-+ list_del_rcu(&user->link);
-+
-+ for (i = 0; i < IPMI_IPMB_NUM_SEQ; i++) {
-+ if (intf->seq_table[i].inuse
-+ && (intf->seq_table[i].recv_msg->user == user))
-+ {
-+ intf->seq_table[i].inuse = 0;
-+ ipmi_free_recv_msg(intf->seq_table[i].recv_msg);
-+ }
-+ }
-+ spin_unlock_irqrestore(&intf->seq_lock, flags);
-+
-+ /*
-+ * Remove the user from the command receiver's table. First
-+ * we build a list of everything (not using the standard link,
-+ * since other things may be using it till we do
-+ * synchronize_rcu()) then free everything in that list.
-+ */
-+ mutex_lock(&intf->cmd_rcvrs_mutex);
-+ list_for_each_entry_rcu(rcvr, &intf->cmd_rcvrs, link) {
-+ if (rcvr->user == user) {
-+ list_del_rcu(&rcvr->link);
-+ rcvr->next = rcvrs;
-+ rcvrs = rcvr;
-+ }
-+ }
-+ mutex_unlock(&intf->cmd_rcvrs_mutex);
-+ synchronize_rcu();
-+ while (rcvrs) {
-+ rcvr = rcvrs;
-+ rcvrs = rcvr->next;
-+ kfree(rcvr);
-+ }
-+
-+ mutex_lock(&ipmi_interfaces_mutex);
-+ if (intf->handlers) {
-+ module_put(intf->handlers->owner);
-+ if (intf->handlers->dec_usecount)
-+ intf->handlers->dec_usecount(intf->send_info);
-+ }
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+
-+ kref_put(&intf->refcount, intf_free);
-+
-+ kref_put(&user->refcount, free_user);
-+
-+ return 0;
-+}
-+
-+void ipmi_get_version(ipmi_user_t user,
-+ unsigned char *major,
-+ unsigned char *minor)
-+{
-+ *major = user->intf->ipmi_version_major;
-+ *minor = user->intf->ipmi_version_minor;
-+}
-+
-+int ipmi_set_my_address(ipmi_user_t user,
-+ unsigned int channel,
-+ unsigned char address)
-+{
-+ if (channel >= IPMI_MAX_CHANNELS)
-+ return -EINVAL;
-+ user->intf->channels[channel].address = address;
-+ return 0;
-+}
-+
-+int ipmi_get_my_address(ipmi_user_t user,
-+ unsigned int channel,
-+ unsigned char *address)
-+{
-+ if (channel >= IPMI_MAX_CHANNELS)
-+ return -EINVAL;
-+ *address = user->intf->channels[channel].address;
-+ return 0;
-+}
-+
-+int ipmi_set_my_LUN(ipmi_user_t user,
-+ unsigned int channel,
-+ unsigned char LUN)
-+{
-+ if (channel >= IPMI_MAX_CHANNELS)
-+ return -EINVAL;
-+ user->intf->channels[channel].lun = LUN & 0x3;
-+ return 0;
-+}
-+
-+int ipmi_get_my_LUN(ipmi_user_t user,
-+ unsigned int channel,
-+ unsigned char *address)
-+{
-+ if (channel >= IPMI_MAX_CHANNELS)
-+ return -EINVAL;
-+ *address = user->intf->channels[channel].lun;
-+ return 0;
-+}
-+
-+int ipmi_get_maintenance_mode(ipmi_user_t user)
-+{
-+ int mode;
-+ unsigned long flags;
-+
-+ spin_lock_irqsave(&user->intf->maintenance_mode_lock, flags);
-+ mode = user->intf->maintenance_mode;
-+ spin_unlock_irqrestore(&user->intf->maintenance_mode_lock, flags);
-+
-+ return mode;
-+}
-+EXPORT_SYMBOL(ipmi_get_maintenance_mode);
-+
-+static void maintenance_mode_update(ipmi_smi_t intf)
-+{
-+ if (intf->handlers->set_maintenance_mode)
-+ intf->handlers->set_maintenance_mode(
-+ intf->send_info, intf->maintenance_mode_enable);
-+}
-+
-+int ipmi_set_maintenance_mode(ipmi_user_t user, int mode)
-+{
-+ int rv = 0;
-+ unsigned long flags;
-+ ipmi_smi_t intf = user->intf;
-+
-+ spin_lock_irqsave(&intf->maintenance_mode_lock, flags);
-+ if (intf->maintenance_mode != mode) {
-+ switch (mode) {
-+ case IPMI_MAINTENANCE_MODE_AUTO:
-+ intf->maintenance_mode = mode;
-+ intf->maintenance_mode_enable
-+ = (intf->auto_maintenance_timeout > 0);
-+ break;
-+
-+ case IPMI_MAINTENANCE_MODE_OFF:
-+ intf->maintenance_mode = mode;
-+ intf->maintenance_mode_enable = 0;
-+ break;
-+
-+ case IPMI_MAINTENANCE_MODE_ON:
-+ intf->maintenance_mode = mode;
-+ intf->maintenance_mode_enable = 1;
-+ break;
-+
-+ default:
-+ rv = -EINVAL;
-+ goto out_unlock;
-+ }
-+
-+ maintenance_mode_update(intf);
-+ }
-+ out_unlock:
-+ spin_unlock_irqrestore(&intf->maintenance_mode_lock, flags);
-+
-+ return rv;
-+}
-+EXPORT_SYMBOL(ipmi_set_maintenance_mode);
-+
-+int ipmi_set_gets_events(ipmi_user_t user, int val)
-+{
-+ unsigned long flags;
-+ ipmi_smi_t intf = user->intf;
-+ struct ipmi_recv_msg *msg, *msg2;
-+ struct list_head msgs;
-+
-+ INIT_LIST_HEAD(&msgs);
-+
-+ spin_lock_irqsave(&intf->events_lock, flags);
-+ user->gets_events = val;
-+
-+ if (intf->delivering_events)
-+ /*
-+ * Another thread is delivering events for this, so
-+ * let it handle any new events.
-+ */
-+ goto out;
-+
-+ /* Deliver any queued events. */
-+ while (user->gets_events && !list_empty(&intf->waiting_events)) {
-+ list_for_each_entry_safe(msg, msg2, &intf->waiting_events, link)
-+ list_move_tail(&msg->link, &msgs);
-+ intf->waiting_events_count = 0;
-+
-+ intf->delivering_events = 1;
-+ spin_unlock_irqrestore(&intf->events_lock, flags);
-+
-+ list_for_each_entry_safe(msg, msg2, &msgs, link) {
-+ msg->user = user;
-+ kref_get(&user->refcount);
-+ deliver_response(msg);
-+ }
-+
-+ spin_lock_irqsave(&intf->events_lock, flags);
-+ intf->delivering_events = 0;
-+ }
-+
-+ out:
-+ spin_unlock_irqrestore(&intf->events_lock, flags);
-+
-+ return 0;
-+}
-+
-+static struct cmd_rcvr *find_cmd_rcvr(ipmi_smi_t intf,
-+ unsigned char netfn,
-+ unsigned char cmd,
-+ unsigned char chan)
-+{
-+ struct cmd_rcvr *rcvr;
-+
-+ list_for_each_entry_rcu(rcvr, &intf->cmd_rcvrs, link) {
-+ if ((rcvr->netfn == netfn) && (rcvr->cmd == cmd)
-+ && (rcvr->chans & (1 << chan)))
-+ return rcvr;
-+ }
-+ return NULL;
-+}
-+
-+static int is_cmd_rcvr_exclusive(ipmi_smi_t intf,
-+ unsigned char netfn,
-+ unsigned char cmd,
-+ unsigned int chans)
-+{
-+ struct cmd_rcvr *rcvr;
-+
-+ list_for_each_entry_rcu(rcvr, &intf->cmd_rcvrs, link) {
-+ if ((rcvr->netfn == netfn) && (rcvr->cmd == cmd)
-+ && (rcvr->chans & chans))
-+ return 0;
-+ }
-+ return 1;
-+}
-+
-+int ipmi_register_for_cmd(ipmi_user_t user,
-+ unsigned char netfn,
-+ unsigned char cmd,
-+ unsigned int chans)
-+{
-+ ipmi_smi_t intf = user->intf;
-+ struct cmd_rcvr *rcvr;
-+ int rv = 0;
-+
-+
-+ rcvr = kmalloc(sizeof(*rcvr), GFP_KERNEL);
-+ if (!rcvr)
-+ return -ENOMEM;
-+ rcvr->cmd = cmd;
-+ rcvr->netfn = netfn;
-+ rcvr->chans = chans;
-+ rcvr->user = user;
-+
-+ mutex_lock(&intf->cmd_rcvrs_mutex);
-+ /* Make sure the command/netfn is not already registered. */
-+ if (!is_cmd_rcvr_exclusive(intf, netfn, cmd, chans)) {
-+ rv = -EBUSY;
-+ goto out_unlock;
-+ }
-+
-+ list_add_rcu(&rcvr->link, &intf->cmd_rcvrs);
-+
-+ out_unlock:
-+ mutex_unlock(&intf->cmd_rcvrs_mutex);
-+ if (rv)
-+ kfree(rcvr);
-+
-+ return rv;
-+}
-+
-+int ipmi_unregister_for_cmd(ipmi_user_t user,
-+ unsigned char netfn,
-+ unsigned char cmd,
-+ unsigned int chans)
-+{
-+ ipmi_smi_t intf = user->intf;
-+ struct cmd_rcvr *rcvr;
-+ struct cmd_rcvr *rcvrs = NULL;
-+ int i, rv = -ENOENT;
-+
-+ mutex_lock(&intf->cmd_rcvrs_mutex);
-+ for (i = 0; i < IPMI_NUM_CHANNELS; i++) {
-+ if (((1 << i) & chans) == 0)
-+ continue;
-+ rcvr = find_cmd_rcvr(intf, netfn, cmd, i);
-+ if (rcvr == NULL)
-+ continue;
-+ if (rcvr->user == user) {
-+ rv = 0;
-+ rcvr->chans &= ~chans;
-+ if (rcvr->chans == 0) {
-+ list_del_rcu(&rcvr->link);
-+ rcvr->next = rcvrs;
-+ rcvrs = rcvr;
-+ }
-+ }
-+ }
-+ mutex_unlock(&intf->cmd_rcvrs_mutex);
-+ synchronize_rcu();
-+ while (rcvrs) {
-+ rcvr = rcvrs;
-+ rcvrs = rcvr->next;
-+ kfree(rcvr);
-+ }
-+ return rv;
-+}
-+
-+void ipmi_user_set_run_to_completion(ipmi_user_t user, int val)
-+{
-+ ipmi_smi_t intf = user->intf;
-+ if (intf->handlers)
-+ intf->handlers->set_run_to_completion(intf->send_info, val);
-+}
-+
-+static unsigned char
-+ipmb_checksum(unsigned char *data, int size)
-+{
-+ unsigned char csum = 0;
-+
-+ for (; size > 0; size--, data++)
-+ csum += *data;
-+
-+ return -csum;
-+}
-+
-+static inline void format_ipmb_msg(struct ipmi_smi_msg *smi_msg,
-+ struct kernel_ipmi_msg *msg,
-+ struct ipmi_ipmb_addr *ipmb_addr,
-+ long msgid,
-+ unsigned char ipmb_seq,
-+ int broadcast,
-+ unsigned char source_address,
-+ unsigned char source_lun)
-+{
-+ int i = broadcast;
-+
-+ /* Format the IPMB header data. */
-+ smi_msg->data[0] = (IPMI_NETFN_APP_REQUEST << 2);
-+ smi_msg->data[1] = IPMI_SEND_MSG_CMD;
-+ smi_msg->data[2] = ipmb_addr->channel;
-+ if (broadcast)
-+ smi_msg->data[3] = 0;
-+ smi_msg->data[i+3] = ipmb_addr->slave_addr;
-+ smi_msg->data[i+4] = (msg->netfn << 2) | (ipmb_addr->lun & 0x3);
-+ smi_msg->data[i+5] = ipmb_checksum(&(smi_msg->data[i+3]), 2);
-+ smi_msg->data[i+6] = source_address;
-+ smi_msg->data[i+7] = (ipmb_seq << 2) | source_lun;
-+ smi_msg->data[i+8] = msg->cmd;
-+
-+ /* Now tack on the data to the message. */
-+ if (msg->data_len > 0)
-+ memcpy(&(smi_msg->data[i+9]), msg->data,
-+ msg->data_len);
-+ smi_msg->data_size = msg->data_len + 9;
-+
-+ /* Now calculate the checksum and tack it on. */
-+ smi_msg->data[i+smi_msg->data_size]
-+ = ipmb_checksum(&(smi_msg->data[i+6]),
-+ smi_msg->data_size-6);
-+
-+ /* Add on the checksum size and the offset from the
-+ broadcast. */
-+ smi_msg->data_size += 1 + i;
-+
-+ smi_msg->msgid = msgid;
-+}
-+
-+static inline void format_lan_msg(struct ipmi_smi_msg *smi_msg,
-+ struct kernel_ipmi_msg *msg,
-+ struct ipmi_lan_addr *lan_addr,
-+ long msgid,
-+ unsigned char ipmb_seq,
-+ unsigned char source_lun)
-+{
-+ /* Format the IPMB header data. */
-+ smi_msg->data[0] = (IPMI_NETFN_APP_REQUEST << 2);
-+ smi_msg->data[1] = IPMI_SEND_MSG_CMD;
-+ smi_msg->data[2] = lan_addr->channel;
-+ smi_msg->data[3] = lan_addr->session_handle;
-+ smi_msg->data[4] = lan_addr->remote_SWID;
-+ smi_msg->data[5] = (msg->netfn << 2) | (lan_addr->lun & 0x3);
-+ smi_msg->data[6] = ipmb_checksum(&(smi_msg->data[4]), 2);
-+ smi_msg->data[7] = lan_addr->local_SWID;
-+ smi_msg->data[8] = (ipmb_seq << 2) | source_lun;
-+ smi_msg->data[9] = msg->cmd;
-+
-+ /* Now tack on the data to the message. */
-+ if (msg->data_len > 0)
-+ memcpy(&(smi_msg->data[10]), msg->data,
-+ msg->data_len);
-+ smi_msg->data_size = msg->data_len + 10;
-+
-+ /* Now calculate the checksum and tack it on. */
-+ smi_msg->data[smi_msg->data_size]
-+ = ipmb_checksum(&(smi_msg->data[7]),
-+ smi_msg->data_size-7);
-+
-+ /* Add on the checksum size and the offset from the
-+ broadcast. */
-+ smi_msg->data_size += 1;
-+
-+ smi_msg->msgid = msgid;
-+}
-+
-+/* Separate from ipmi_request so that the user does not have to be
-+ supplied in certain circumstances (mainly at panic time). If
-+ messages are supplied, they will be freed, even if an error
-+ occurs. */
-+static int i_ipmi_request(ipmi_user_t user,
-+ ipmi_smi_t intf,
-+ struct ipmi_addr *addr,
-+ long msgid,
-+ struct kernel_ipmi_msg *msg,
-+ void *user_msg_data,
-+ void *supplied_smi,
-+ struct ipmi_recv_msg *supplied_recv,
-+ int priority,
-+ unsigned char source_address,
-+ unsigned char source_lun,
-+ int retries,
-+ unsigned int retry_time_ms)
-+{
-+ int rv = 0;
-+ struct ipmi_smi_msg *smi_msg;
-+ struct ipmi_recv_msg *recv_msg;
-+ unsigned long flags;
-+ struct ipmi_smi_handlers *handlers;
-+
-+
-+ if (supplied_recv) {
-+ recv_msg = supplied_recv;
-+ } else {
-+ recv_msg = ipmi_alloc_recv_msg();
-+ if (recv_msg == NULL) {
-+ return -ENOMEM;
-+ }
-+ }
-+ recv_msg->user_msg_data = user_msg_data;
-+
-+ if (supplied_smi) {
-+ smi_msg = (struct ipmi_smi_msg *) supplied_smi;
-+ } else {
-+ smi_msg = ipmi_alloc_smi_msg();
-+ if (smi_msg == NULL) {
-+ ipmi_free_recv_msg(recv_msg);
-+ return -ENOMEM;
-+ }
-+ }
-+
-+ rcu_read_lock();
-+ handlers = intf->handlers;
-+ if (!handlers) {
-+ rv = -ENODEV;
-+ goto out_err;
-+ }
-+
-+ recv_msg->user = user;
-+ if (user)
-+ kref_get(&user->refcount);
-+ recv_msg->msgid = msgid;
-+ /* Store the message to send in the receive message so timeout
-+ responses can get the proper response data. */
-+ recv_msg->msg = *msg;
-+
-+ if (addr->addr_type == IPMI_SYSTEM_INTERFACE_ADDR_TYPE) {
-+ struct ipmi_system_interface_addr *smi_addr;
-+
-+ if (msg->netfn & 1) {
-+ /* Responses are not allowed to the SMI. */
-+ rv = -EINVAL;
-+ goto out_err;
-+ }
-+
-+ smi_addr = (struct ipmi_system_interface_addr *) addr;
-+ if (smi_addr->lun > 3) {
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EINVAL;
-+ goto out_err;
-+ }
-+
-+ memcpy(&recv_msg->addr, smi_addr, sizeof(*smi_addr));
-+
-+ if ((msg->netfn == IPMI_NETFN_APP_REQUEST)
-+ && ((msg->cmd == IPMI_SEND_MSG_CMD)
-+ || (msg->cmd == IPMI_GET_MSG_CMD)
-+ || (msg->cmd == IPMI_READ_EVENT_MSG_BUFFER_CMD)))
-+ {
-+ /* We don't let the user do these, since we manage
-+ the sequence numbers. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EINVAL;
-+ goto out_err;
-+ }
-+
-+ if (((msg->netfn == IPMI_NETFN_APP_REQUEST)
-+ && ((msg->cmd == IPMI_COLD_RESET_CMD)
-+ || (msg->cmd == IPMI_WARM_RESET_CMD)))
-+ || (msg->netfn == IPMI_NETFN_FIRMWARE_REQUEST))
-+ {
-+ spin_lock_irqsave(&intf->maintenance_mode_lock, flags);
-+ intf->auto_maintenance_timeout
-+ = IPMI_MAINTENANCE_MODE_TIMEOUT;
-+ if (!intf->maintenance_mode
-+ && !intf->maintenance_mode_enable)
-+ {
-+ intf->maintenance_mode_enable = 1;
-+ maintenance_mode_update(intf);
-+ }
-+ spin_unlock_irqrestore(&intf->maintenance_mode_lock,
-+ flags);
-+ }
-+
-+ if ((msg->data_len + 2) > IPMI_MAX_MSG_LENGTH) {
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EMSGSIZE;
-+ goto out_err;
-+ }
-+
-+ smi_msg->data[0] = (msg->netfn << 2) | (smi_addr->lun & 0x3);
-+ smi_msg->data[1] = msg->cmd;
-+ smi_msg->msgid = msgid;
-+ smi_msg->user_data = recv_msg;
-+ if (msg->data_len > 0)
-+ memcpy(&(smi_msg->data[2]), msg->data, msg->data_len);
-+ smi_msg->data_size = msg->data_len + 2;
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_local_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ } else if ((addr->addr_type == IPMI_IPMB_ADDR_TYPE)
-+ || (addr->addr_type == IPMI_IPMB_BROADCAST_ADDR_TYPE))
-+ {
-+ struct ipmi_ipmb_addr *ipmb_addr;
-+ unsigned char ipmb_seq;
-+ long seqid;
-+ int broadcast = 0;
-+
-+ if (addr->channel >= IPMI_MAX_CHANNELS) {
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EINVAL;
-+ goto out_err;
-+ }
-+
-+ if (intf->channels[addr->channel].medium
-+ != IPMI_CHANNEL_MEDIUM_IPMB)
-+ {
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EINVAL;
-+ goto out_err;
-+ }
-+
-+ if (retries < 0) {
-+ if (addr->addr_type == IPMI_IPMB_BROADCAST_ADDR_TYPE)
-+ retries = 0; /* Don't retry broadcasts. */
-+ else
-+ retries = 4;
-+ }
-+ if (addr->addr_type == IPMI_IPMB_BROADCAST_ADDR_TYPE) {
-+ /* Broadcasts add a zero at the beginning of the
-+ message, but otherwise is the same as an IPMB
-+ address. */
-+ addr->addr_type = IPMI_IPMB_ADDR_TYPE;
-+ broadcast = 1;
-+ }
-+
-+
-+ /* Default to 1 second retries. */
-+ if (retry_time_ms == 0)
-+ retry_time_ms = 1000;
-+
-+ /* 9 for the header and 1 for the checksum, plus
-+ possibly one for the broadcast. */
-+ if ((msg->data_len + 10 + broadcast) > IPMI_MAX_MSG_LENGTH) {
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EMSGSIZE;
-+ goto out_err;
-+ }
-+
-+ ipmb_addr = (struct ipmi_ipmb_addr *) addr;
-+ if (ipmb_addr->lun > 3) {
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EINVAL;
-+ goto out_err;
-+ }
-+
-+ memcpy(&recv_msg->addr, ipmb_addr, sizeof(*ipmb_addr));
-+
-+ if (recv_msg->msg.netfn & 0x1) {
-+ /* It's a response, so use the user's sequence
-+ from msgid. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_ipmb_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ format_ipmb_msg(smi_msg, msg, ipmb_addr, msgid,
-+ msgid, broadcast,
-+ source_address, source_lun);
-+
-+ /* Save the receive message so we can use it
-+ to deliver the response. */
-+ smi_msg->user_data = recv_msg;
-+ } else {
-+ /* It's a command, so get a sequence for it. */
-+
-+ spin_lock_irqsave(&(intf->seq_lock), flags);
-+
-+ spin_lock(&intf->counter_lock);
-+ intf->sent_ipmb_commands++;
-+ spin_unlock(&intf->counter_lock);
-+
-+ /* Create a sequence number with a 1 second
-+ timeout and 4 retries. */
-+ rv = intf_next_seq(intf,
-+ recv_msg,
-+ retry_time_ms,
-+ retries,
-+ broadcast,
-+ &ipmb_seq,
-+ &seqid);
-+ if (rv) {
-+ /* We have used up all the sequence numbers,
-+ probably, so abort. */
-+ spin_unlock_irqrestore(&(intf->seq_lock),
-+ flags);
-+ goto out_err;
-+ }
-+
-+ /* Store the sequence number in the message,
-+ so that when the send message response
-+ comes back we can start the timer. */
-+ format_ipmb_msg(smi_msg, msg, ipmb_addr,
-+ STORE_SEQ_IN_MSGID(ipmb_seq, seqid),
-+ ipmb_seq, broadcast,
-+ source_address, source_lun);
-+
-+ /* Copy the message into the recv message data, so we
-+ can retransmit it later if necessary. */
-+ memcpy(recv_msg->msg_data, smi_msg->data,
-+ smi_msg->data_size);
-+ recv_msg->msg.data = recv_msg->msg_data;
-+ recv_msg->msg.data_len = smi_msg->data_size;
-+
-+ /* We don't unlock until here, because we need
-+ to copy the completed message into the
-+ recv_msg before we release the lock.
-+ Otherwise, race conditions may bite us. I
-+ know that's pretty paranoid, but I prefer
-+ to be correct. */
-+ spin_unlock_irqrestore(&(intf->seq_lock), flags);
-+ }
-+ } else if (addr->addr_type == IPMI_LAN_ADDR_TYPE) {
-+ struct ipmi_lan_addr *lan_addr;
-+ unsigned char ipmb_seq;
-+ long seqid;
-+
-+ if (addr->channel >= IPMI_MAX_CHANNELS) {
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EINVAL;
-+ goto out_err;
-+ }
-+
-+ if ((intf->channels[addr->channel].medium
-+ != IPMI_CHANNEL_MEDIUM_8023LAN)
-+ && (intf->channels[addr->channel].medium
-+ != IPMI_CHANNEL_MEDIUM_ASYNC))
-+ {
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EINVAL;
-+ goto out_err;
-+ }
-+
-+ retries = 4;
-+
-+ /* Default to 1 second retries. */
-+ if (retry_time_ms == 0)
-+ retry_time_ms = 1000;
-+
-+ /* 11 for the header and 1 for the checksum. */
-+ if ((msg->data_len + 12) > IPMI_MAX_MSG_LENGTH) {
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EMSGSIZE;
-+ goto out_err;
-+ }
-+
-+ lan_addr = (struct ipmi_lan_addr *) addr;
-+ if (lan_addr->lun > 3) {
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EINVAL;
-+ goto out_err;
-+ }
-+
-+ memcpy(&recv_msg->addr, lan_addr, sizeof(*lan_addr));
-+
-+ if (recv_msg->msg.netfn & 0x1) {
-+ /* It's a response, so use the user's sequence
-+ from msgid. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_lan_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ format_lan_msg(smi_msg, msg, lan_addr, msgid,
-+ msgid, source_lun);
-+
-+ /* Save the receive message so we can use it
-+ to deliver the response. */
-+ smi_msg->user_data = recv_msg;
-+ } else {
-+ /* It's a command, so get a sequence for it. */
-+
-+ spin_lock_irqsave(&(intf->seq_lock), flags);
-+
-+ spin_lock(&intf->counter_lock);
-+ intf->sent_lan_commands++;
-+ spin_unlock(&intf->counter_lock);
-+
-+ /* Create a sequence number with a 1 second
-+ timeout and 4 retries. */
-+ rv = intf_next_seq(intf,
-+ recv_msg,
-+ retry_time_ms,
-+ retries,
-+ 0,
-+ &ipmb_seq,
-+ &seqid);
-+ if (rv) {
-+ /* We have used up all the sequence numbers,
-+ probably, so abort. */
-+ spin_unlock_irqrestore(&(intf->seq_lock),
-+ flags);
-+ goto out_err;
-+ }
-+
-+ /* Store the sequence number in the message,
-+ so that when the send message response
-+ comes back we can start the timer. */
-+ format_lan_msg(smi_msg, msg, lan_addr,
-+ STORE_SEQ_IN_MSGID(ipmb_seq, seqid),
-+ ipmb_seq, source_lun);
-+
-+ /* Copy the message into the recv message data, so we
-+ can retransmit it later if necessary. */
-+ memcpy(recv_msg->msg_data, smi_msg->data,
-+ smi_msg->data_size);
-+ recv_msg->msg.data = recv_msg->msg_data;
-+ recv_msg->msg.data_len = smi_msg->data_size;
-+
-+ /* We don't unlock until here, because we need
-+ to copy the completed message into the
-+ recv_msg before we release the lock.
-+ Otherwise, race conditions may bite us. I
-+ know that's pretty paranoid, but I prefer
-+ to be correct. */
-+ spin_unlock_irqrestore(&(intf->seq_lock), flags);
-+ }
-+ } else {
-+ /* Unknown address type. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->sent_invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ rv = -EINVAL;
-+ goto out_err;
-+ }
-+
-+#ifdef DEBUG_MSGING
-+ {
-+ int m;
-+ for (m = 0; m < smi_msg->data_size; m++)
-+ printk(" %2.2x", smi_msg->data[m]);
-+ printk("\n");
-+ }
-+#endif
-+
-+ handlers->sender(intf->send_info, smi_msg, priority);
-+ rcu_read_unlock();
-+
-+ return 0;
-+
-+ out_err:
-+ rcu_read_unlock();
-+ ipmi_free_smi_msg(smi_msg);
-+ ipmi_free_recv_msg(recv_msg);
-+ return rv;
-+}
-+
-+static int check_addr(ipmi_smi_t intf,
-+ struct ipmi_addr *addr,
-+ unsigned char *saddr,
-+ unsigned char *lun)
-+{
-+ if (addr->channel >= IPMI_MAX_CHANNELS)
-+ return -EINVAL;
-+ *lun = intf->channels[addr->channel].lun;
-+ *saddr = intf->channels[addr->channel].address;
-+ return 0;
-+}
-+
-+int ipmi_request_settime(ipmi_user_t user,
-+ struct ipmi_addr *addr,
-+ long msgid,
-+ struct kernel_ipmi_msg *msg,
-+ void *user_msg_data,
-+ int priority,
-+ int retries,
-+ unsigned int retry_time_ms)
-+{
-+ unsigned char saddr, lun;
-+ int rv;
-+
-+ if (!user)
-+ return -EINVAL;
-+ rv = check_addr(user->intf, addr, &saddr, &lun);
-+ if (rv)
-+ return rv;
-+ return i_ipmi_request(user,
-+ user->intf,
-+ addr,
-+ msgid,
-+ msg,
-+ user_msg_data,
-+ NULL, NULL,
-+ priority,
-+ saddr,
-+ lun,
-+ retries,
-+ retry_time_ms);
-+}
-+
-+int ipmi_request_supply_msgs(ipmi_user_t user,
-+ struct ipmi_addr *addr,
-+ long msgid,
-+ struct kernel_ipmi_msg *msg,
-+ void *user_msg_data,
-+ void *supplied_smi,
-+ struct ipmi_recv_msg *supplied_recv,
-+ int priority)
-+{
-+ unsigned char saddr, lun;
-+ int rv;
-+
-+ if (!user)
-+ return -EINVAL;
-+ rv = check_addr(user->intf, addr, &saddr, &lun);
-+ if (rv)
-+ return rv;
-+ return i_ipmi_request(user,
-+ user->intf,
-+ addr,
-+ msgid,
-+ msg,
-+ user_msg_data,
-+ supplied_smi,
-+ supplied_recv,
-+ priority,
-+ saddr,
-+ lun,
-+ -1, 0);
-+}
-+
-+#ifdef CONFIG_PROC_FS
-+static int ipmb_file_read_proc(char *page, char **start, off_t off,
-+ int count, int *eof, void *data)
-+{
-+ char *out = (char *) page;
-+ ipmi_smi_t intf = data;
-+ int i;
-+ int rv = 0;
-+
-+ for (i = 0; i < IPMI_MAX_CHANNELS; i++)
-+ rv += sprintf(out+rv, "%x ", intf->channels[i].address);
-+ out[rv-1] = '\n'; /* Replace the final space with a newline */
-+ out[rv] = '\0';
-+ rv++;
-+ return rv;
-+}
-+
-+static int version_file_read_proc(char *page, char **start, off_t off,
-+ int count, int *eof, void *data)
-+{
-+ char *out = (char *) page;
-+ ipmi_smi_t intf = data;
-+
-+ return sprintf(out, "%d.%d\n",
-+ ipmi_version_major(&intf->bmc->id),
-+ ipmi_version_minor(&intf->bmc->id));
-+}
-+
-+static int stat_file_read_proc(char *page, char **start, off_t off,
-+ int count, int *eof, void *data)
-+{
-+ char *out = (char *) page;
-+ ipmi_smi_t intf = data;
-+
-+ out += sprintf(out, "sent_invalid_commands: %d\n",
-+ intf->sent_invalid_commands);
-+ out += sprintf(out, "sent_local_commands: %d\n",
-+ intf->sent_local_commands);
-+ out += sprintf(out, "handled_local_responses: %d\n",
-+ intf->handled_local_responses);
-+ out += sprintf(out, "unhandled_local_responses: %d\n",
-+ intf->unhandled_local_responses);
-+ out += sprintf(out, "sent_ipmb_commands: %d\n",
-+ intf->sent_ipmb_commands);
-+ out += sprintf(out, "sent_ipmb_command_errs: %d\n",
-+ intf->sent_ipmb_command_errs);
-+ out += sprintf(out, "retransmitted_ipmb_commands: %d\n",
-+ intf->retransmitted_ipmb_commands);
-+ out += sprintf(out, "timed_out_ipmb_commands: %d\n",
-+ intf->timed_out_ipmb_commands);
-+ out += sprintf(out, "timed_out_ipmb_broadcasts: %d\n",
-+ intf->timed_out_ipmb_broadcasts);
-+ out += sprintf(out, "sent_ipmb_responses: %d\n",
-+ intf->sent_ipmb_responses);
-+ out += sprintf(out, "handled_ipmb_responses: %d\n",
-+ intf->handled_ipmb_responses);
-+ out += sprintf(out, "invalid_ipmb_responses: %d\n",
-+ intf->invalid_ipmb_responses);
-+ out += sprintf(out, "unhandled_ipmb_responses: %d\n",
-+ intf->unhandled_ipmb_responses);
-+ out += sprintf(out, "sent_lan_commands: %d\n",
-+ intf->sent_lan_commands);
-+ out += sprintf(out, "sent_lan_command_errs: %d\n",
-+ intf->sent_lan_command_errs);
-+ out += sprintf(out, "retransmitted_lan_commands: %d\n",
-+ intf->retransmitted_lan_commands);
-+ out += sprintf(out, "timed_out_lan_commands: %d\n",
-+ intf->timed_out_lan_commands);
-+ out += sprintf(out, "sent_lan_responses: %d\n",
-+ intf->sent_lan_responses);
-+ out += sprintf(out, "handled_lan_responses: %d\n",
-+ intf->handled_lan_responses);
-+ out += sprintf(out, "invalid_lan_responses: %d\n",
-+ intf->invalid_lan_responses);
-+ out += sprintf(out, "unhandled_lan_responses: %d\n",
-+ intf->unhandled_lan_responses);
-+ out += sprintf(out, "handled_commands: %d\n",
-+ intf->handled_commands);
-+ out += sprintf(out, "invalid_commands: %d\n",
-+ intf->invalid_commands);
-+ out += sprintf(out, "unhandled_commands: %d\n",
-+ intf->unhandled_commands);
-+ out += sprintf(out, "invalid_events: %d\n",
-+ intf->invalid_events);
-+ out += sprintf(out, "events: %d\n",
-+ intf->events);
-+
-+ return (out - ((char *) page));
-+}
-+#endif /* CONFIG_PROC_FS */
-+
-+int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
-+ read_proc_t *read_proc, write_proc_t *write_proc,
-+ void *data, struct module *owner)
-+{
-+ int rv = 0;
-+#ifdef CONFIG_PROC_FS
-+ struct proc_dir_entry *file;
-+ struct ipmi_proc_entry *entry;
-+
-+ /* Create a list element. */
-+ entry = kmalloc(sizeof(*entry), GFP_KERNEL);
-+ if (!entry)
-+ return -ENOMEM;
-+ entry->name = kmalloc(strlen(name)+1, GFP_KERNEL);
-+ if (!entry->name) {
-+ kfree(entry);
-+ return -ENOMEM;
-+ }
-+ strcpy(entry->name, name);
-+
-+ file = create_proc_entry(name, 0, smi->proc_dir);
-+ if (!file) {
-+ kfree(entry->name);
-+ kfree(entry);
-+ rv = -ENOMEM;
-+ } else {
-+ file->nlink = 1;
-+ file->data = data;
-+ file->read_proc = read_proc;
-+ file->write_proc = write_proc;
-+ file->owner = owner;
-+
-+ spin_lock(&smi->proc_entry_lock);
-+ /* Stick it on the list. */
-+ entry->next = smi->proc_entries;
-+ smi->proc_entries = entry;
-+ spin_unlock(&smi->proc_entry_lock);
-+ }
-+#endif /* CONFIG_PROC_FS */
-+
-+ return rv;
-+}
-+
-+static int add_proc_entries(ipmi_smi_t smi, int num)
-+{
-+ int rv = 0;
-+
-+#ifdef CONFIG_PROC_FS
-+ sprintf(smi->proc_dir_name, "%d", num);
-+ smi->proc_dir = proc_mkdir(smi->proc_dir_name, proc_ipmi_root);
-+ if (!smi->proc_dir)
-+ rv = -ENOMEM;
-+ else {
-+ smi->proc_dir->owner = THIS_MODULE;
-+ }
-+
-+ if (rv == 0)
-+ rv = ipmi_smi_add_proc_entry(smi, "stats",
-+ stat_file_read_proc, NULL,
-+ smi, THIS_MODULE);
-+
-+ if (rv == 0)
-+ rv = ipmi_smi_add_proc_entry(smi, "ipmb",
-+ ipmb_file_read_proc, NULL,
-+ smi, THIS_MODULE);
-+
-+ if (rv == 0)
-+ rv = ipmi_smi_add_proc_entry(smi, "version",
-+ version_file_read_proc, NULL,
-+ smi, THIS_MODULE);
-+#endif /* CONFIG_PROC_FS */
-+
-+ return rv;
-+}
-+
-+static void remove_proc_entries(ipmi_smi_t smi)
-+{
-+#ifdef CONFIG_PROC_FS
-+ struct ipmi_proc_entry *entry;
-+
-+ spin_lock(&smi->proc_entry_lock);
-+ while (smi->proc_entries) {
-+ entry = smi->proc_entries;
-+ smi->proc_entries = entry->next;
-+
-+ remove_proc_entry(entry->name, smi->proc_dir);
-+ kfree(entry->name);
-+ kfree(entry);
-+ }
-+ spin_unlock(&smi->proc_entry_lock);
-+ remove_proc_entry(smi->proc_dir_name, proc_ipmi_root);
-+#endif /* CONFIG_PROC_FS */
-+}
-+
-+static int __find_bmc_guid(struct device *dev, void *data)
-+{
-+ unsigned char *id = data;
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+ return memcmp(bmc->guid, id, 16) == 0;
-+}
-+
-+static struct bmc_device *ipmi_find_bmc_guid(struct device_driver *drv,
-+ unsigned char *guid)
-+{
-+ struct device *dev;
-+
-+ dev = driver_find_device(drv, NULL, guid, __find_bmc_guid);
-+ if (dev)
-+ return dev_get_drvdata(dev);
-+ else
-+ return NULL;
-+}
-+
-+struct prod_dev_id {
-+ unsigned int product_id;
-+ unsigned char device_id;
-+};
-+
-+static int __find_bmc_prod_dev_id(struct device *dev, void *data)
-+{
-+ struct prod_dev_id *id = data;
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return (bmc->id.product_id == id->product_id
-+ && bmc->id.device_id == id->device_id);
-+}
-+
-+static struct bmc_device *ipmi_find_bmc_prod_dev_id(
-+ struct device_driver *drv,
-+ unsigned int product_id, unsigned char device_id)
-+{
-+ struct prod_dev_id id = {
-+ .product_id = product_id,
-+ .device_id = device_id,
-+ };
-+ struct device *dev;
-+
-+ dev = driver_find_device(drv, NULL, &id, __find_bmc_prod_dev_id);
-+ if (dev)
-+ return dev_get_drvdata(dev);
-+ else
-+ return NULL;
-+}
-+
-+static ssize_t device_id_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return snprintf(buf, 10, "%u\n", bmc->id.device_id);
-+}
-+
-+static ssize_t provides_dev_sdrs_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return snprintf(buf, 10, "%u\n",
-+ (bmc->id.device_revision & 0x80) >> 7);
-+}
-+
-+static ssize_t revision_show(struct device *dev, struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return snprintf(buf, 20, "%u\n",
-+ bmc->id.device_revision & 0x0F);
-+}
-+
-+static ssize_t firmware_rev_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return snprintf(buf, 20, "%u.%x\n", bmc->id.firmware_revision_1,
-+ bmc->id.firmware_revision_2);
-+}
-+
-+static ssize_t ipmi_version_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return snprintf(buf, 20, "%u.%u\n",
-+ ipmi_version_major(&bmc->id),
-+ ipmi_version_minor(&bmc->id));
-+}
-+
-+static ssize_t add_dev_support_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return snprintf(buf, 10, "0x%02x\n",
-+ bmc->id.additional_device_support);
-+}
-+
-+static ssize_t manufacturer_id_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return snprintf(buf, 20, "0x%6.6x\n", bmc->id.manufacturer_id);
-+}
-+
-+static ssize_t product_id_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return snprintf(buf, 10, "0x%4.4x\n", bmc->id.product_id);
-+}
-+
-+static ssize_t aux_firmware_rev_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return snprintf(buf, 21, "0x%02x 0x%02x 0x%02x 0x%02x\n",
-+ bmc->id.aux_firmware_revision[3],
-+ bmc->id.aux_firmware_revision[2],
-+ bmc->id.aux_firmware_revision[1],
-+ bmc->id.aux_firmware_revision[0]);
-+}
-+
-+static ssize_t guid_show(struct device *dev, struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct bmc_device *bmc = dev_get_drvdata(dev);
-+
-+ return snprintf(buf, 100, "%Lx%Lx\n",
-+ (long long) bmc->guid[0],
-+ (long long) bmc->guid[8]);
-+}
-+
-+static void remove_files(struct bmc_device *bmc)
-+{
-+ if (!bmc->dev)
-+ return;
-+
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->device_id_attr);
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->provides_dev_sdrs_attr);
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->revision_attr);
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->firmware_rev_attr);
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->version_attr);
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->add_dev_support_attr);
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->manufacturer_id_attr);
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->product_id_attr);
-+
-+ if (bmc->id.aux_firmware_revision_set)
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->aux_firmware_rev_attr);
-+ if (bmc->guid_set)
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->guid_attr);
-+}
-+
-+static void
-+cleanup_bmc_device(struct kref *ref)
-+{
-+ struct bmc_device *bmc;
-+
-+ bmc = container_of(ref, struct bmc_device, refcount);
-+
-+ remove_files(bmc);
-+ platform_device_unregister(bmc->dev);
-+ kfree(bmc);
-+}
-+
-+static void ipmi_bmc_unregister(ipmi_smi_t intf)
-+{
-+ struct bmc_device *bmc = intf->bmc;
-+
-+ if (intf->sysfs_name) {
-+ sysfs_remove_link(&intf->si_dev->kobj, intf->sysfs_name);
-+ kfree(intf->sysfs_name);
-+ intf->sysfs_name = NULL;
-+ }
-+ if (intf->my_dev_name) {
-+ sysfs_remove_link(&bmc->dev->dev.kobj, intf->my_dev_name);
-+ kfree(intf->my_dev_name);
-+ intf->my_dev_name = NULL;
-+ }
-+
-+ mutex_lock(&ipmidriver_mutex);
-+ kref_put(&bmc->refcount, cleanup_bmc_device);
-+ intf->bmc = NULL;
-+ mutex_unlock(&ipmidriver_mutex);
-+}
-+
-+static int create_files(struct bmc_device *bmc)
-+{
-+ int err;
-+
-+ bmc->device_id_attr.attr.name = "device_id";
-+ bmc->device_id_attr.attr.owner = THIS_MODULE;
-+ bmc->device_id_attr.attr.mode = S_IRUGO;
-+ bmc->device_id_attr.show = device_id_show;
-+
-+ bmc->provides_dev_sdrs_attr.attr.name = "provides_device_sdrs";
-+ bmc->provides_dev_sdrs_attr.attr.owner = THIS_MODULE;
-+ bmc->provides_dev_sdrs_attr.attr.mode = S_IRUGO;
-+ bmc->provides_dev_sdrs_attr.show = provides_dev_sdrs_show;
-+
-+ bmc->revision_attr.attr.name = "revision";
-+ bmc->revision_attr.attr.owner = THIS_MODULE;
-+ bmc->revision_attr.attr.mode = S_IRUGO;
-+ bmc->revision_attr.show = revision_show;
-+
-+ bmc->firmware_rev_attr.attr.name = "firmware_revision";
-+ bmc->firmware_rev_attr.attr.owner = THIS_MODULE;
-+ bmc->firmware_rev_attr.attr.mode = S_IRUGO;
-+ bmc->firmware_rev_attr.show = firmware_rev_show;
-+
-+ bmc->version_attr.attr.name = "ipmi_version";
-+ bmc->version_attr.attr.owner = THIS_MODULE;
-+ bmc->version_attr.attr.mode = S_IRUGO;
-+ bmc->version_attr.show = ipmi_version_show;
-+
-+ bmc->add_dev_support_attr.attr.name = "additional_device_support";
-+ bmc->add_dev_support_attr.attr.owner = THIS_MODULE;
-+ bmc->add_dev_support_attr.attr.mode = S_IRUGO;
-+ bmc->add_dev_support_attr.show = add_dev_support_show;
-+
-+ bmc->manufacturer_id_attr.attr.name = "manufacturer_id";
-+ bmc->manufacturer_id_attr.attr.owner = THIS_MODULE;
-+ bmc->manufacturer_id_attr.attr.mode = S_IRUGO;
-+ bmc->manufacturer_id_attr.show = manufacturer_id_show;
-+
-+ bmc->product_id_attr.attr.name = "product_id";
-+ bmc->product_id_attr.attr.owner = THIS_MODULE;
-+ bmc->product_id_attr.attr.mode = S_IRUGO;
-+ bmc->product_id_attr.show = product_id_show;
-+
-+ bmc->guid_attr.attr.name = "guid";
-+ bmc->guid_attr.attr.owner = THIS_MODULE;
-+ bmc->guid_attr.attr.mode = S_IRUGO;
-+ bmc->guid_attr.show = guid_show;
-+
-+ bmc->aux_firmware_rev_attr.attr.name = "aux_firmware_revision";
-+ bmc->aux_firmware_rev_attr.attr.owner = THIS_MODULE;
-+ bmc->aux_firmware_rev_attr.attr.mode = S_IRUGO;
-+ bmc->aux_firmware_rev_attr.show = aux_firmware_rev_show;
-+
-+ err = device_create_file(&bmc->dev->dev,
-+ &bmc->device_id_attr);
-+ if (err) goto out;
-+ err = device_create_file(&bmc->dev->dev,
-+ &bmc->provides_dev_sdrs_attr);
-+ if (err) goto out_devid;
-+ err = device_create_file(&bmc->dev->dev,
-+ &bmc->revision_attr);
-+ if (err) goto out_sdrs;
-+ err = device_create_file(&bmc->dev->dev,
-+ &bmc->firmware_rev_attr);
-+ if (err) goto out_rev;
-+ err = device_create_file(&bmc->dev->dev,
-+ &bmc->version_attr);
-+ if (err) goto out_firm;
-+ err = device_create_file(&bmc->dev->dev,
-+ &bmc->add_dev_support_attr);
-+ if (err) goto out_version;
-+ err = device_create_file(&bmc->dev->dev,
-+ &bmc->manufacturer_id_attr);
-+ if (err) goto out_add_dev;
-+ err = device_create_file(&bmc->dev->dev,
-+ &bmc->product_id_attr);
-+ if (err) goto out_manu;
-+ if (bmc->id.aux_firmware_revision_set) {
-+ err = device_create_file(&bmc->dev->dev,
-+ &bmc->aux_firmware_rev_attr);
-+ if (err) goto out_prod_id;
-+ }
-+ if (bmc->guid_set) {
-+ err = device_create_file(&bmc->dev->dev,
-+ &bmc->guid_attr);
-+ if (err) goto out_aux_firm;
-+ }
-+
-+ return 0;
-+
-+out_aux_firm:
-+ if (bmc->id.aux_firmware_revision_set)
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->aux_firmware_rev_attr);
-+out_prod_id:
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->product_id_attr);
-+out_manu:
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->manufacturer_id_attr);
-+out_add_dev:
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->add_dev_support_attr);
-+out_version:
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->version_attr);
-+out_firm:
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->firmware_rev_attr);
-+out_rev:
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->revision_attr);
-+out_sdrs:
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->provides_dev_sdrs_attr);
-+out_devid:
-+ device_remove_file(&bmc->dev->dev,
-+ &bmc->device_id_attr);
-+out:
-+ return err;
-+}
-+
-+static int ipmi_bmc_register(ipmi_smi_t intf, int ifnum,
-+ const char *sysfs_name)
-+{
-+ int rv;
-+ struct bmc_device *bmc = intf->bmc;
-+ struct bmc_device *old_bmc;
-+ int size;
-+ char dummy[1];
-+
-+ mutex_lock(&ipmidriver_mutex);
-+
-+ /*
-+ * Try to find if there is an bmc_device struct
-+ * representing the interfaced BMC already
-+ */
-+ if (bmc->guid_set)
-+ old_bmc = ipmi_find_bmc_guid(&ipmidriver, bmc->guid);
-+ else
-+ old_bmc = ipmi_find_bmc_prod_dev_id(&ipmidriver,
-+ bmc->id.product_id,
-+ bmc->id.device_id);
-+
-+ /*
-+ * If there is already an bmc_device, free the new one,
-+ * otherwise register the new BMC device
-+ */
-+ if (old_bmc) {
-+ kfree(bmc);
-+ intf->bmc = old_bmc;
-+ bmc = old_bmc;
-+
-+ kref_get(&bmc->refcount);
-+ mutex_unlock(&ipmidriver_mutex);
-+
-+ printk(KERN_INFO
-+ "ipmi: interfacing existing BMC (man_id: 0x%6.6x,"
-+ " prod_id: 0x%4.4x, dev_id: 0x%2.2x)\n",
-+ bmc->id.manufacturer_id,
-+ bmc->id.product_id,
-+ bmc->id.device_id);
-+ } else {
-+ char name[14];
-+ unsigned char orig_dev_id = bmc->id.device_id;
-+ int warn_printed = 0;
-+
-+ snprintf(name, sizeof(name),
-+ "ipmi_bmc.%4.4x", bmc->id.product_id);
-+
-+ while (ipmi_find_bmc_prod_dev_id(&ipmidriver,
-+ bmc->id.product_id,
-+ bmc->id.device_id)) {
-+ if (!warn_printed) {
-+ printk(KERN_WARNING PFX
-+ "This machine has two different BMCs"
-+ " with the same product id and device"
-+ " id. This is an error in the"
-+ " firmware, but incrementing the"
-+ " device id to work around the problem."
-+ " Prod ID = 0x%x, Dev ID = 0x%x\n",
-+ bmc->id.product_id, bmc->id.device_id);
-+ warn_printed = 1;
-+ }
-+ bmc->id.device_id++; /* Wraps at 255 */
-+ if (bmc->id.device_id == orig_dev_id) {
-+ printk(KERN_ERR PFX
-+ "Out of device ids!\n");
-+ break;
-+ }
-+ }
-+
-+ bmc->dev = platform_device_alloc(name, bmc->id.device_id);
-+ if (!bmc->dev) {
-+ mutex_unlock(&ipmidriver_mutex);
-+ printk(KERN_ERR
-+ "ipmi_msghandler:"
-+ " Unable to allocate platform device\n");
-+ return -ENOMEM;
-+ }
-+ bmc->dev->dev.driver = &ipmidriver;
-+ dev_set_drvdata(&bmc->dev->dev, bmc);
-+ kref_init(&bmc->refcount);
-+
-+ rv = platform_device_add(bmc->dev);
-+ mutex_unlock(&ipmidriver_mutex);
-+ if (rv) {
-+ platform_device_put(bmc->dev);
-+ bmc->dev = NULL;
-+ printk(KERN_ERR
-+ "ipmi_msghandler:"
-+ " Unable to register bmc device: %d\n",
-+ rv);
-+ /* Don't go to out_err, you can only do that if
-+ the device is registered already. */
-+ return rv;
-+ }
-+
-+ rv = create_files(bmc);
-+ if (rv) {
-+ mutex_lock(&ipmidriver_mutex);
-+ platform_device_unregister(bmc->dev);
-+ mutex_unlock(&ipmidriver_mutex);
-+
-+ return rv;
-+ }
-+
-+ printk(KERN_INFO
-+ "ipmi: Found new BMC (man_id: 0x%6.6x, "
-+ " prod_id: 0x%4.4x, dev_id: 0x%2.2x)\n",
-+ bmc->id.manufacturer_id,
-+ bmc->id.product_id,
-+ bmc->id.device_id);
-+ }
-+
-+ /*
-+ * create symlink from system interface device to bmc device
-+ * and back.
-+ */
-+ intf->sysfs_name = kstrdup(sysfs_name, GFP_KERNEL);
-+ if (!intf->sysfs_name) {
-+ rv = -ENOMEM;
-+ printk(KERN_ERR
-+ "ipmi_msghandler: allocate link to BMC: %d\n",
-+ rv);
-+ goto out_err;
-+ }
-+
-+ rv = sysfs_create_link(&intf->si_dev->kobj,
-+ &bmc->dev->dev.kobj, intf->sysfs_name);
-+ if (rv) {
-+ kfree(intf->sysfs_name);
-+ intf->sysfs_name = NULL;
-+ printk(KERN_ERR
-+ "ipmi_msghandler: Unable to create bmc symlink: %d\n",
-+ rv);
-+ goto out_err;
-+ }
-+
-+ size = snprintf(dummy, 0, "ipmi%d", ifnum);
-+ intf->my_dev_name = kmalloc(size+1, GFP_KERNEL);
-+ if (!intf->my_dev_name) {
-+ kfree(intf->sysfs_name);
-+ intf->sysfs_name = NULL;
-+ rv = -ENOMEM;
-+ printk(KERN_ERR
-+ "ipmi_msghandler: allocate link from BMC: %d\n",
-+ rv);
-+ goto out_err;
-+ }
-+ snprintf(intf->my_dev_name, size+1, "ipmi%d", ifnum);
-+
-+ rv = sysfs_create_link(&bmc->dev->dev.kobj, &intf->si_dev->kobj,
-+ intf->my_dev_name);
-+ if (rv) {
-+ kfree(intf->sysfs_name);
-+ intf->sysfs_name = NULL;
-+ kfree(intf->my_dev_name);
-+ intf->my_dev_name = NULL;
-+ printk(KERN_ERR
-+ "ipmi_msghandler:"
-+ " Unable to create symlink to bmc: %d\n",
-+ rv);
-+ goto out_err;
-+ }
-+
-+ return 0;
-+
-+out_err:
-+ ipmi_bmc_unregister(intf);
-+ return rv;
-+}
-+
-+static int
-+send_guid_cmd(ipmi_smi_t intf, int chan)
-+{
-+ struct kernel_ipmi_msg msg;
-+ struct ipmi_system_interface_addr si;
-+
-+ si.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
-+ si.channel = IPMI_BMC_CHANNEL;
-+ si.lun = 0;
-+
-+ msg.netfn = IPMI_NETFN_APP_REQUEST;
-+ msg.cmd = IPMI_GET_DEVICE_GUID_CMD;
-+ msg.data = NULL;
-+ msg.data_len = 0;
-+ return i_ipmi_request(NULL,
-+ intf,
-+ (struct ipmi_addr *) &si,
-+ 0,
-+ &msg,
-+ intf,
-+ NULL,
-+ NULL,
-+ 0,
-+ intf->channels[0].address,
-+ intf->channels[0].lun,
-+ -1, 0);
-+}
-+
-+static void
-+guid_handler(ipmi_smi_t intf, struct ipmi_recv_msg *msg)
-+{
-+ if ((msg->addr.addr_type != IPMI_SYSTEM_INTERFACE_ADDR_TYPE)
-+ || (msg->msg.netfn != IPMI_NETFN_APP_RESPONSE)
-+ || (msg->msg.cmd != IPMI_GET_DEVICE_GUID_CMD))
-+ /* Not for me */
-+ return;
-+
-+ if (msg->msg.data[0] != 0) {
-+ /* Error from getting the GUID, the BMC doesn't have one. */
-+ intf->bmc->guid_set = 0;
-+ goto out;
-+ }
-+
-+ if (msg->msg.data_len < 17) {
-+ intf->bmc->guid_set = 0;
-+ printk(KERN_WARNING PFX
-+ "guid_handler: The GUID response from the BMC was too"
-+ " short, it was %d but should have been 17. Assuming"
-+ " GUID is not available.\n",
-+ msg->msg.data_len);
-+ goto out;
-+ }
-+
-+ memcpy(intf->bmc->guid, msg->msg.data, 16);
-+ intf->bmc->guid_set = 1;
-+ out:
-+ wake_up(&intf->waitq);
-+}
-+
-+static void
-+get_guid(ipmi_smi_t intf)
-+{
-+ int rv;
-+
-+ intf->bmc->guid_set = 0x2;
-+ intf->null_user_handler = guid_handler;
-+ rv = send_guid_cmd(intf, 0);
-+ if (rv)
-+ /* Send failed, no GUID available. */
-+ intf->bmc->guid_set = 0;
-+ wait_event(intf->waitq, intf->bmc->guid_set != 2);
-+ intf->null_user_handler = NULL;
-+}
-+
-+static int
-+send_channel_info_cmd(ipmi_smi_t intf, int chan)
-+{
-+ struct kernel_ipmi_msg msg;
-+ unsigned char data[1];
-+ struct ipmi_system_interface_addr si;
-+
-+ si.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
-+ si.channel = IPMI_BMC_CHANNEL;
-+ si.lun = 0;
-+
-+ msg.netfn = IPMI_NETFN_APP_REQUEST;
-+ msg.cmd = IPMI_GET_CHANNEL_INFO_CMD;
-+ msg.data = data;
-+ msg.data_len = 1;
-+ data[0] = chan;
-+ return i_ipmi_request(NULL,
-+ intf,
-+ (struct ipmi_addr *) &si,
-+ 0,
-+ &msg,
-+ intf,
-+ NULL,
-+ NULL,
-+ 0,
-+ intf->channels[0].address,
-+ intf->channels[0].lun,
-+ -1, 0);
-+}
-+
-+static void
-+channel_handler(ipmi_smi_t intf, struct ipmi_recv_msg *msg)
-+{
-+ int rv = 0;
-+ int chan;
-+
-+ if ((msg->addr.addr_type == IPMI_SYSTEM_INTERFACE_ADDR_TYPE)
-+ && (msg->msg.netfn == IPMI_NETFN_APP_RESPONSE)
-+ && (msg->msg.cmd == IPMI_GET_CHANNEL_INFO_CMD))
-+ {
-+ /* It's the one we want */
-+ if (msg->msg.data[0] != 0) {
-+ /* Got an error from the channel, just go on. */
-+
-+ if (msg->msg.data[0] == IPMI_INVALID_COMMAND_ERR) {
-+ /* If the MC does not support this
-+ command, that is legal. We just
-+ assume it has one IPMB at channel
-+ zero. */
-+ intf->channels[0].medium
-+ = IPMI_CHANNEL_MEDIUM_IPMB;
-+ intf->channels[0].protocol
-+ = IPMI_CHANNEL_PROTOCOL_IPMB;
-+ rv = -ENOSYS;
-+
-+ intf->curr_channel = IPMI_MAX_CHANNELS;
-+ wake_up(&intf->waitq);
-+ goto out;
-+ }
-+ goto next_channel;
-+ }
-+ if (msg->msg.data_len < 4) {
-+ /* Message not big enough, just go on. */
-+ goto next_channel;
-+ }
-+ chan = intf->curr_channel;
-+ intf->channels[chan].medium = msg->msg.data[2] & 0x7f;
-+ intf->channels[chan].protocol = msg->msg.data[3] & 0x1f;
-+
-+ next_channel:
-+ intf->curr_channel++;
-+ if (intf->curr_channel >= IPMI_MAX_CHANNELS)
-+ wake_up(&intf->waitq);
-+ else
-+ rv = send_channel_info_cmd(intf, intf->curr_channel);
-+
-+ if (rv) {
-+ /* Got an error somehow, just give up. */
-+ intf->curr_channel = IPMI_MAX_CHANNELS;
-+ wake_up(&intf->waitq);
-+
-+ printk(KERN_WARNING PFX
-+ "Error sending channel information: %d\n",
-+ rv);
-+ }
-+ }
-+ out:
-+ return;
-+}
-+
-+int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
-+ void *send_info,
-+ struct ipmi_device_id *device_id,
-+ struct device *si_dev,
-+ const char *sysfs_name,
-+ unsigned char slave_addr)
-+{
-+ int i, j;
-+ int rv;
-+ ipmi_smi_t intf;
-+ ipmi_smi_t tintf;
-+ struct list_head *link;
-+
-+ /* Make sure the driver is actually initialized, this handles
-+ problems with initialization order. */
-+ if (!initialized) {
-+ rv = ipmi_init_msghandler();
-+ if (rv)
-+ return rv;
-+ /* The init code doesn't return an error if it was turned
-+ off, but it won't initialize. Check that. */
-+ if (!initialized)
-+ return -ENODEV;
-+ }
-+
-+ intf = kmalloc(sizeof(*intf), GFP_KERNEL);
-+ if (!intf)
-+ return -ENOMEM;
-+ memset(intf, 0, sizeof(*intf));
-+
-+ intf->ipmi_version_major = ipmi_version_major(device_id);
-+ intf->ipmi_version_minor = ipmi_version_minor(device_id);
-+
-+ intf->bmc = kzalloc(sizeof(*intf->bmc), GFP_KERNEL);
-+ if (!intf->bmc) {
-+ kfree(intf);
-+ return -ENOMEM;
-+ }
-+ intf->intf_num = -1; /* Mark it invalid for now. */
-+ kref_init(&intf->refcount);
-+ intf->bmc->id = *device_id;
-+ intf->si_dev = si_dev;
-+ for (j = 0; j < IPMI_MAX_CHANNELS; j++) {
-+ intf->channels[j].address = IPMI_BMC_SLAVE_ADDR;
-+ intf->channels[j].lun = 2;
-+ }
-+ if (slave_addr != 0)
-+ intf->channels[0].address = slave_addr;
-+ INIT_LIST_HEAD(&intf->users);
-+ intf->handlers = handlers;
-+ intf->send_info = send_info;
-+ spin_lock_init(&intf->seq_lock);
-+ for (j = 0; j < IPMI_IPMB_NUM_SEQ; j++) {
-+ intf->seq_table[j].inuse = 0;
-+ intf->seq_table[j].seqid = 0;
-+ }
-+ intf->curr_seq = 0;
-+#ifdef CONFIG_PROC_FS
-+ spin_lock_init(&intf->proc_entry_lock);
-+#endif
-+ spin_lock_init(&intf->waiting_msgs_lock);
-+ INIT_LIST_HEAD(&intf->waiting_msgs);
-+ spin_lock_init(&intf->events_lock);
-+ INIT_LIST_HEAD(&intf->waiting_events);
-+ intf->waiting_events_count = 0;
-+ mutex_init(&intf->cmd_rcvrs_mutex);
-+ spin_lock_init(&intf->maintenance_mode_lock);
-+ INIT_LIST_HEAD(&intf->cmd_rcvrs);
-+ init_waitqueue_head(&intf->waitq);
-+
-+ spin_lock_init(&intf->counter_lock);
-+ intf->proc_dir = NULL;
-+
-+ mutex_lock(&smi_watchers_mutex);
-+ mutex_lock(&ipmi_interfaces_mutex);
-+ /* Look for a hole in the numbers. */
-+ i = 0;
-+ link = &ipmi_interfaces;
-+ list_for_each_entry_rcu(tintf, &ipmi_interfaces, link) {
-+ if (tintf->intf_num != i) {
-+ link = &tintf->link;
-+ break;
-+ }
-+ i++;
-+ }
-+ /* Add the new interface in numeric order. */
-+ if (i == 0)
-+ list_add_rcu(&intf->link, &ipmi_interfaces);
-+ else
-+ list_add_tail_rcu(&intf->link, link);
-+
-+ rv = handlers->start_processing(send_info, intf);
-+ if (rv)
-+ goto out;
-+
-+ get_guid(intf);
-+
-+ if ((intf->ipmi_version_major > 1)
-+ || ((intf->ipmi_version_major == 1)
-+ && (intf->ipmi_version_minor >= 5)))
-+ {
-+ /* Start scanning the channels to see what is
-+ available. */
-+ intf->null_user_handler = channel_handler;
-+ intf->curr_channel = 0;
-+ rv = send_channel_info_cmd(intf, 0);
-+ if (rv)
-+ goto out;
-+
-+ /* Wait for the channel info to be read. */
-+ wait_event(intf->waitq,
-+ intf->curr_channel >= IPMI_MAX_CHANNELS);
-+ intf->null_user_handler = NULL;
-+ } else {
-+ /* Assume a single IPMB channel at zero. */
-+ intf->channels[0].medium = IPMI_CHANNEL_MEDIUM_IPMB;
-+ intf->channels[0].protocol = IPMI_CHANNEL_PROTOCOL_IPMB;
-+ }
-+
-+ if (rv == 0)
-+ rv = add_proc_entries(intf, i);
-+
-+ rv = ipmi_bmc_register(intf, i, sysfs_name);
-+
-+ out:
-+ if (rv) {
-+ if (intf->proc_dir)
-+ remove_proc_entries(intf);
-+ intf->handlers = NULL;
-+ list_del_rcu(&intf->link);
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+ mutex_unlock(&smi_watchers_mutex);
-+ synchronize_rcu();
-+ kref_put(&intf->refcount, intf_free);
-+ } else {
-+ /* After this point the interface is legal to use. */
-+ intf->intf_num = i;
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+ call_smi_watchers(i, intf->si_dev);
-+ mutex_unlock(&smi_watchers_mutex);
-+ }
-+
-+ return rv;
-+}
-+
-+static void cleanup_smi_msgs(ipmi_smi_t intf)
-+{
-+ int i;
-+ struct seq_table *ent;
-+
-+ /* No need for locks, the interface is down. */
-+ for (i = 0; i < IPMI_IPMB_NUM_SEQ; i++) {
-+ ent = &(intf->seq_table[i]);
-+ if (!ent->inuse)
-+ continue;
-+ deliver_err_response(ent->recv_msg, IPMI_ERR_UNSPECIFIED);
-+ }
-+}
-+
-+int ipmi_unregister_smi(ipmi_smi_t intf)
-+{
-+ struct ipmi_smi_watcher *w;
-+ int intf_num = intf->intf_num;
-+
-+ ipmi_bmc_unregister(intf);
-+
-+ mutex_lock(&smi_watchers_mutex);
-+ mutex_lock(&ipmi_interfaces_mutex);
-+ intf->intf_num = -1;
-+ intf->handlers = NULL;
-+ list_del_rcu(&intf->link);
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+ synchronize_rcu();
-+
-+ cleanup_smi_msgs(intf);
-+
-+ remove_proc_entries(intf);
-+
-+ /* Call all the watcher interfaces to tell them that
-+ an interface is gone. */
-+ list_for_each_entry(w, &smi_watchers, link)
-+ w->smi_gone(intf_num);
-+ mutex_unlock(&smi_watchers_mutex);
-+
-+ kref_put(&intf->refcount, intf_free);
-+ return 0;
-+}
-+
-+static int handle_ipmb_get_msg_rsp(ipmi_smi_t intf,
-+ struct ipmi_smi_msg *msg)
-+{
-+ struct ipmi_ipmb_addr ipmb_addr;
-+ struct ipmi_recv_msg *recv_msg;
-+ unsigned long flags;
-+
-+
-+ /* This is 11, not 10, because the response must contain a
-+ * completion code. */
-+ if (msg->rsp_size < 11) {
-+ /* Message not big enough, just ignore it. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->invalid_ipmb_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ return 0;
-+ }
-+
-+ if (msg->rsp[2] != 0) {
-+ /* An error getting the response, just ignore it. */
-+ return 0;
-+ }
-+
-+ ipmb_addr.addr_type = IPMI_IPMB_ADDR_TYPE;
-+ ipmb_addr.slave_addr = msg->rsp[6];
-+ ipmb_addr.channel = msg->rsp[3] & 0x0f;
-+ ipmb_addr.lun = msg->rsp[7] & 3;
-+
-+ /* It's a response from a remote entity. Look up the sequence
-+ number and handle the response. */
-+ if (intf_find_seq(intf,
-+ msg->rsp[7] >> 2,
-+ msg->rsp[3] & 0x0f,
-+ msg->rsp[8],
-+ (msg->rsp[4] >> 2) & (~1),
-+ (struct ipmi_addr *) &(ipmb_addr),
-+ &recv_msg))
-+ {
-+ /* We were unable to find the sequence number,
-+ so just nuke the message. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->unhandled_ipmb_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ return 0;
-+ }
-+
-+ memcpy(recv_msg->msg_data,
-+ &(msg->rsp[9]),
-+ msg->rsp_size - 9);
-+ /* THe other fields matched, so no need to set them, except
-+ for netfn, which needs to be the response that was
-+ returned, not the request value. */
-+ recv_msg->msg.netfn = msg->rsp[4] >> 2;
-+ recv_msg->msg.data = recv_msg->msg_data;
-+ recv_msg->msg.data_len = msg->rsp_size - 10;
-+ recv_msg->recv_type = IPMI_RESPONSE_RECV_TYPE;
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->handled_ipmb_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ deliver_response(recv_msg);
-+
-+ return 0;
-+}
-+
-+static int handle_ipmb_get_msg_cmd(ipmi_smi_t intf,
-+ struct ipmi_smi_msg *msg)
-+{
-+ struct cmd_rcvr *rcvr;
-+ int rv = 0;
-+ unsigned char netfn;
-+ unsigned char cmd;
-+ unsigned char chan;
-+ ipmi_user_t user = NULL;
-+ struct ipmi_ipmb_addr *ipmb_addr;
-+ struct ipmi_recv_msg *recv_msg;
-+ unsigned long flags;
-+ struct ipmi_smi_handlers *handlers;
-+
-+ if (msg->rsp_size < 10) {
-+ /* Message not big enough, just ignore it. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ return 0;
-+ }
-+
-+ if (msg->rsp[2] != 0) {
-+ /* An error getting the response, just ignore it. */
-+ return 0;
-+ }
-+
-+ netfn = msg->rsp[4] >> 2;
-+ cmd = msg->rsp[8];
-+ chan = msg->rsp[3] & 0xf;
-+
-+ rcu_read_lock();
-+ rcvr = find_cmd_rcvr(intf, netfn, cmd, chan);
-+ if (rcvr) {
-+ user = rcvr->user;
-+ kref_get(&user->refcount);
-+ } else
-+ user = NULL;
-+ rcu_read_unlock();
-+
-+ if (user == NULL) {
-+ /* We didn't find a user, deliver an error response. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->unhandled_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+
-+ msg->data[0] = (IPMI_NETFN_APP_REQUEST << 2);
-+ msg->data[1] = IPMI_SEND_MSG_CMD;
-+ msg->data[2] = msg->rsp[3];
-+ msg->data[3] = msg->rsp[6];
-+ msg->data[4] = ((netfn + 1) << 2) | (msg->rsp[7] & 0x3);
-+ msg->data[5] = ipmb_checksum(&(msg->data[3]), 2);
-+ msg->data[6] = intf->channels[msg->rsp[3] & 0xf].address;
-+ /* rqseq/lun */
-+ msg->data[7] = (msg->rsp[7] & 0xfc) | (msg->rsp[4] & 0x3);
-+ msg->data[8] = msg->rsp[8]; /* cmd */
-+ msg->data[9] = IPMI_INVALID_CMD_COMPLETION_CODE;
-+ msg->data[10] = ipmb_checksum(&(msg->data[6]), 4);
-+ msg->data_size = 11;
-+
-+#ifdef DEBUG_MSGING
-+ {
-+ int m;
-+ printk("Invalid command:");
-+ for (m = 0; m < msg->data_size; m++)
-+ printk(" %2.2x", msg->data[m]);
-+ printk("\n");
-+ }
-+#endif
-+ rcu_read_lock();
-+ handlers = intf->handlers;
-+ if (handlers) {
-+ handlers->sender(intf->send_info, msg, 0);
-+ /* We used the message, so return the value
-+ that causes it to not be freed or
-+ queued. */
-+ rv = -1;
-+ }
-+ rcu_read_unlock();
-+ } else {
-+ /* Deliver the message to the user. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->handled_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+
-+ recv_msg = ipmi_alloc_recv_msg();
-+ if (!recv_msg) {
-+ /* We couldn't allocate memory for the
-+ message, so requeue it for handling
-+ later. */
-+ rv = 1;
-+ kref_put(&user->refcount, free_user);
-+ } else {
-+ /* Extract the source address from the data. */
-+ ipmb_addr = (struct ipmi_ipmb_addr *) &recv_msg->addr;
-+ ipmb_addr->addr_type = IPMI_IPMB_ADDR_TYPE;
-+ ipmb_addr->slave_addr = msg->rsp[6];
-+ ipmb_addr->lun = msg->rsp[7] & 3;
-+ ipmb_addr->channel = msg->rsp[3] & 0xf;
-+
-+ /* Extract the rest of the message information
-+ from the IPMB header.*/
-+ recv_msg->user = user;
-+ recv_msg->recv_type = IPMI_CMD_RECV_TYPE;
-+ recv_msg->msgid = msg->rsp[7] >> 2;
-+ recv_msg->msg.netfn = msg->rsp[4] >> 2;
-+ recv_msg->msg.cmd = msg->rsp[8];
-+ recv_msg->msg.data = recv_msg->msg_data;
-+
-+ /* We chop off 10, not 9 bytes because the checksum
-+ at the end also needs to be removed. */
-+ recv_msg->msg.data_len = msg->rsp_size - 10;
-+ memcpy(recv_msg->msg_data,
-+ &(msg->rsp[9]),
-+ msg->rsp_size - 10);
-+ deliver_response(recv_msg);
-+ }
-+ }
-+
-+ return rv;
-+}
-+
-+static int handle_lan_get_msg_rsp(ipmi_smi_t intf,
-+ struct ipmi_smi_msg *msg)
-+{
-+ struct ipmi_lan_addr lan_addr;
-+ struct ipmi_recv_msg *recv_msg;
-+ unsigned long flags;
-+
-+
-+ /* This is 13, not 12, because the response must contain a
-+ * completion code. */
-+ if (msg->rsp_size < 13) {
-+ /* Message not big enough, just ignore it. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->invalid_lan_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ return 0;
-+ }
-+
-+ if (msg->rsp[2] != 0) {
-+ /* An error getting the response, just ignore it. */
-+ return 0;
-+ }
-+
-+ lan_addr.addr_type = IPMI_LAN_ADDR_TYPE;
-+ lan_addr.session_handle = msg->rsp[4];
-+ lan_addr.remote_SWID = msg->rsp[8];
-+ lan_addr.local_SWID = msg->rsp[5];
-+ lan_addr.channel = msg->rsp[3] & 0x0f;
-+ lan_addr.privilege = msg->rsp[3] >> 4;
-+ lan_addr.lun = msg->rsp[9] & 3;
-+
-+ /* It's a response from a remote entity. Look up the sequence
-+ number and handle the response. */
-+ if (intf_find_seq(intf,
-+ msg->rsp[9] >> 2,
-+ msg->rsp[3] & 0x0f,
-+ msg->rsp[10],
-+ (msg->rsp[6] >> 2) & (~1),
-+ (struct ipmi_addr *) &(lan_addr),
-+ &recv_msg))
-+ {
-+ /* We were unable to find the sequence number,
-+ so just nuke the message. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->unhandled_lan_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ return 0;
-+ }
-+
-+ memcpy(recv_msg->msg_data,
-+ &(msg->rsp[11]),
-+ msg->rsp_size - 11);
-+ /* The other fields matched, so no need to set them, except
-+ for netfn, which needs to be the response that was
-+ returned, not the request value. */
-+ recv_msg->msg.netfn = msg->rsp[6] >> 2;
-+ recv_msg->msg.data = recv_msg->msg_data;
-+ recv_msg->msg.data_len = msg->rsp_size - 12;
-+ recv_msg->recv_type = IPMI_RESPONSE_RECV_TYPE;
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->handled_lan_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ deliver_response(recv_msg);
-+
-+ return 0;
-+}
-+
-+static int handle_lan_get_msg_cmd(ipmi_smi_t intf,
-+ struct ipmi_smi_msg *msg)
-+{
-+ struct cmd_rcvr *rcvr;
-+ int rv = 0;
-+ unsigned char netfn;
-+ unsigned char cmd;
-+ unsigned char chan;
-+ ipmi_user_t user = NULL;
-+ struct ipmi_lan_addr *lan_addr;
-+ struct ipmi_recv_msg *recv_msg;
-+ unsigned long flags;
-+
-+ if (msg->rsp_size < 12) {
-+ /* Message not big enough, just ignore it. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->invalid_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ return 0;
-+ }
-+
-+ if (msg->rsp[2] != 0) {
-+ /* An error getting the response, just ignore it. */
-+ return 0;
-+ }
-+
-+ netfn = msg->rsp[6] >> 2;
-+ cmd = msg->rsp[10];
-+ chan = msg->rsp[3] & 0xf;
-+
-+ rcu_read_lock();
-+ rcvr = find_cmd_rcvr(intf, netfn, cmd, chan);
-+ if (rcvr) {
-+ user = rcvr->user;
-+ kref_get(&user->refcount);
-+ } else
-+ user = NULL;
-+ rcu_read_unlock();
-+
-+ if (user == NULL) {
-+ /* We didn't find a user, just give up. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->unhandled_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+
-+ rv = 0; /* Don't do anything with these messages, just
-+ allow them to be freed. */
-+ } else {
-+ /* Deliver the message to the user. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->handled_commands++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+
-+ recv_msg = ipmi_alloc_recv_msg();
-+ if (!recv_msg) {
-+ /* We couldn't allocate memory for the
-+ message, so requeue it for handling
-+ later. */
-+ rv = 1;
-+ kref_put(&user->refcount, free_user);
-+ } else {
-+ /* Extract the source address from the data. */
-+ lan_addr = (struct ipmi_lan_addr *) &recv_msg->addr;
-+ lan_addr->addr_type = IPMI_LAN_ADDR_TYPE;
-+ lan_addr->session_handle = msg->rsp[4];
-+ lan_addr->remote_SWID = msg->rsp[8];
-+ lan_addr->local_SWID = msg->rsp[5];
-+ lan_addr->lun = msg->rsp[9] & 3;
-+ lan_addr->channel = msg->rsp[3] & 0xf;
-+ lan_addr->privilege = msg->rsp[3] >> 4;
-+
-+ /* Extract the rest of the message information
-+ from the IPMB header.*/
-+ recv_msg->user = user;
-+ recv_msg->recv_type = IPMI_CMD_RECV_TYPE;
-+ recv_msg->msgid = msg->rsp[9] >> 2;
-+ recv_msg->msg.netfn = msg->rsp[6] >> 2;
-+ recv_msg->msg.cmd = msg->rsp[10];
-+ recv_msg->msg.data = recv_msg->msg_data;
-+
-+ /* We chop off 12, not 11 bytes because the checksum
-+ at the end also needs to be removed. */
-+ recv_msg->msg.data_len = msg->rsp_size - 12;
-+ memcpy(recv_msg->msg_data,
-+ &(msg->rsp[11]),
-+ msg->rsp_size - 12);
-+ deliver_response(recv_msg);
-+ }
-+ }
-+
-+ return rv;
-+}
-+
-+static void copy_event_into_recv_msg(struct ipmi_recv_msg *recv_msg,
-+ struct ipmi_smi_msg *msg)
-+{
-+ struct ipmi_system_interface_addr *smi_addr;
-+
-+ recv_msg->msgid = 0;
-+ smi_addr = (struct ipmi_system_interface_addr *) &(recv_msg->addr);
-+ smi_addr->addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
-+ smi_addr->channel = IPMI_BMC_CHANNEL;
-+ smi_addr->lun = msg->rsp[0] & 3;
-+ recv_msg->recv_type = IPMI_ASYNC_EVENT_RECV_TYPE;
-+ recv_msg->msg.netfn = msg->rsp[0] >> 2;
-+ recv_msg->msg.cmd = msg->rsp[1];
-+ memcpy(recv_msg->msg_data, &(msg->rsp[3]), msg->rsp_size - 3);
-+ recv_msg->msg.data = recv_msg->msg_data;
-+ recv_msg->msg.data_len = msg->rsp_size - 3;
-+}
-+
-+static int handle_read_event_rsp(ipmi_smi_t intf,
-+ struct ipmi_smi_msg *msg)
-+{
-+ struct ipmi_recv_msg *recv_msg, *recv_msg2;
-+ struct list_head msgs;
-+ ipmi_user_t user;
-+ int rv = 0;
-+ int deliver_count = 0;
-+ unsigned long flags;
-+
-+ if (msg->rsp_size < 19) {
-+ /* Message is too small to be an IPMB event. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->invalid_events++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ return 0;
-+ }
-+
-+ if (msg->rsp[2] != 0) {
-+ /* An error getting the event, just ignore it. */
-+ return 0;
-+ }
-+
-+ INIT_LIST_HEAD(&msgs);
-+
-+ spin_lock_irqsave(&intf->events_lock, flags);
-+
-+ spin_lock(&intf->counter_lock);
-+ intf->events++;
-+ spin_unlock(&intf->counter_lock);
-+
-+ /* Allocate and fill in one message for every user that is getting
-+ events. */
-+ rcu_read_lock();
-+ list_for_each_entry_rcu(user, &intf->users, link) {
-+ if (!user->gets_events)
-+ continue;
-+
-+ recv_msg = ipmi_alloc_recv_msg();
-+ if (!recv_msg) {
-+ rcu_read_unlock();
-+ list_for_each_entry_safe(recv_msg, recv_msg2, &msgs,
-+ link) {
-+ list_del(&recv_msg->link);
-+ ipmi_free_recv_msg(recv_msg);
-+ }
-+ /* We couldn't allocate memory for the
-+ message, so requeue it for handling
-+ later. */
-+ rv = 1;
-+ goto out;
-+ }
-+
-+ deliver_count++;
-+
-+ copy_event_into_recv_msg(recv_msg, msg);
-+ recv_msg->user = user;
-+ kref_get(&user->refcount);
-+ list_add_tail(&(recv_msg->link), &msgs);
-+ }
-+ rcu_read_unlock();
-+
-+ if (deliver_count) {
-+ /* Now deliver all the messages. */
-+ list_for_each_entry_safe(recv_msg, recv_msg2, &msgs, link) {
-+ list_del(&recv_msg->link);
-+ deliver_response(recv_msg);
-+ }
-+ } else if (intf->waiting_events_count < MAX_EVENTS_IN_QUEUE) {
-+ /* No one to receive the message, put it in queue if there's
-+ not already too many things in the queue. */
-+ recv_msg = ipmi_alloc_recv_msg();
-+ if (!recv_msg) {
-+ /* We couldn't allocate memory for the
-+ message, so requeue it for handling
-+ later. */
-+ rv = 1;
-+ goto out;
-+ }
-+
-+ copy_event_into_recv_msg(recv_msg, msg);
-+ list_add_tail(&(recv_msg->link), &(intf->waiting_events));
-+ intf->waiting_events_count++;
-+ } else {
-+ /* There's too many things in the queue, discard this
-+ message. */
-+ printk(KERN_WARNING PFX "Event queue full, discarding an"
-+ " incoming event\n");
-+ }
-+
-+ out:
-+ spin_unlock_irqrestore(&(intf->events_lock), flags);
-+
-+ return rv;
-+}
-+
-+static int handle_bmc_rsp(ipmi_smi_t intf,
-+ struct ipmi_smi_msg *msg)
-+{
-+ struct ipmi_recv_msg *recv_msg;
-+ unsigned long flags;
-+ struct ipmi_user *user;
-+
-+ recv_msg = (struct ipmi_recv_msg *) msg->user_data;
-+ if (recv_msg == NULL)
-+ {
-+ printk(KERN_WARNING"IPMI message received with no owner. This\n"
-+ "could be because of a malformed message, or\n"
-+ "because of a hardware error. Contact your\n"
-+ "hardware vender for assistance\n");
-+ return 0;
-+ }
-+
-+ user = recv_msg->user;
-+ /* Make sure the user still exists. */
-+ if (user && !user->valid) {
-+ /* The user for the message went away, so give up. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->unhandled_local_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ ipmi_free_recv_msg(recv_msg);
-+ } else {
-+ struct ipmi_system_interface_addr *smi_addr;
-+
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ intf->handled_local_responses++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ recv_msg->recv_type = IPMI_RESPONSE_RECV_TYPE;
-+ recv_msg->msgid = msg->msgid;
-+ smi_addr = ((struct ipmi_system_interface_addr *)
-+ &(recv_msg->addr));
-+ smi_addr->addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
-+ smi_addr->channel = IPMI_BMC_CHANNEL;
-+ smi_addr->lun = msg->rsp[0] & 3;
-+ recv_msg->msg.netfn = msg->rsp[0] >> 2;
-+ recv_msg->msg.cmd = msg->rsp[1];
-+ memcpy(recv_msg->msg_data,
-+ &(msg->rsp[2]),
-+ msg->rsp_size - 2);
-+ recv_msg->msg.data = recv_msg->msg_data;
-+ recv_msg->msg.data_len = msg->rsp_size - 2;
-+ deliver_response(recv_msg);
-+ }
-+
-+ return 0;
-+}
-+
-+/* Handle a new message. Return 1 if the message should be requeued,
-+ 0 if the message should be freed, or -1 if the message should not
-+ be freed or requeued. */
-+static int handle_new_recv_msg(ipmi_smi_t intf,
-+ struct ipmi_smi_msg *msg)
-+{
-+ int requeue;
-+ int chan;
-+
-+#ifdef DEBUG_MSGING
-+ int m;
-+ printk("Recv:");
-+ for (m = 0; m < msg->rsp_size; m++)
-+ printk(" %2.2x", msg->rsp[m]);
-+ printk("\n");
-+#endif
-+ if (msg->rsp_size < 2) {
-+ /* Message is too small to be correct. */
-+ printk(KERN_WARNING PFX "BMC returned to small a message"
-+ " for netfn %x cmd %x, got %d bytes\n",
-+ (msg->data[0] >> 2) | 1, msg->data[1], msg->rsp_size);
-+
-+ /* Generate an error response for the message. */
-+ msg->rsp[0] = msg->data[0] | (1 << 2);
-+ msg->rsp[1] = msg->data[1];
-+ msg->rsp[2] = IPMI_ERR_UNSPECIFIED;
-+ msg->rsp_size = 3;
-+ } else if (((msg->rsp[0] >> 2) != ((msg->data[0] >> 2) | 1))/* Netfn */
-+ || (msg->rsp[1] != msg->data[1])) /* Command */
-+ {
-+ /* The response is not even marginally correct. */
-+ printk(KERN_WARNING PFX "BMC returned incorrect response,"
-+ " expected netfn %x cmd %x, got netfn %x cmd %x\n",
-+ (msg->data[0] >> 2) | 1, msg->data[1],
-+ msg->rsp[0] >> 2, msg->rsp[1]);
-+
-+ /* Generate an error response for the message. */
-+ msg->rsp[0] = msg->data[0] | (1 << 2);
-+ msg->rsp[1] = msg->data[1];
-+ msg->rsp[2] = IPMI_ERR_UNSPECIFIED;
-+ msg->rsp_size = 3;
-+ }
-+
-+ if ((msg->rsp[0] == ((IPMI_NETFN_APP_REQUEST|1) << 2))
-+ && (msg->rsp[1] == IPMI_SEND_MSG_CMD)
-+ && (msg->user_data != NULL))
-+ {
-+ /* It's a response to a response we sent. For this we
-+ deliver a send message response to the user. */
-+ struct ipmi_recv_msg *recv_msg = msg->user_data;
-+
-+ requeue = 0;
-+ if (msg->rsp_size < 2)
-+ /* Message is too small to be correct. */
-+ goto out;
-+
-+ chan = msg->data[2] & 0x0f;
-+ if (chan >= IPMI_MAX_CHANNELS)
-+ /* Invalid channel number */
-+ goto out;
-+
-+ if (!recv_msg)
-+ goto out;
-+
-+ /* Make sure the user still exists. */
-+ if (!recv_msg->user || !recv_msg->user->valid)
-+ goto out;
-+
-+ recv_msg->recv_type = IPMI_RESPONSE_RESPONSE_TYPE;
-+ recv_msg->msg.data = recv_msg->msg_data;
-+ recv_msg->msg.data_len = 1;
-+ recv_msg->msg_data[0] = msg->rsp[2];
-+ deliver_response(recv_msg);
-+ } else if ((msg->rsp[0] == ((IPMI_NETFN_APP_REQUEST|1) << 2))
-+ && (msg->rsp[1] == IPMI_GET_MSG_CMD))
-+ {
-+ /* It's from the receive queue. */
-+ chan = msg->rsp[3] & 0xf;
-+ if (chan >= IPMI_MAX_CHANNELS) {
-+ /* Invalid channel number */
-+ requeue = 0;
-+ goto out;
-+ }
-+
-+ switch (intf->channels[chan].medium) {
-+ case IPMI_CHANNEL_MEDIUM_IPMB:
-+ if (msg->rsp[4] & 0x04) {
-+ /* It's a response, so find the
-+ requesting message and send it up. */
-+ requeue = handle_ipmb_get_msg_rsp(intf, msg);
-+ } else {
-+ /* It's a command to the SMS from some other
-+ entity. Handle that. */
-+ requeue = handle_ipmb_get_msg_cmd(intf, msg);
-+ }
-+ break;
-+
-+ case IPMI_CHANNEL_MEDIUM_8023LAN:
-+ case IPMI_CHANNEL_MEDIUM_ASYNC:
-+ if (msg->rsp[6] & 0x04) {
-+ /* It's a response, so find the
-+ requesting message and send it up. */
-+ requeue = handle_lan_get_msg_rsp(intf, msg);
-+ } else {
-+ /* It's a command to the SMS from some other
-+ entity. Handle that. */
-+ requeue = handle_lan_get_msg_cmd(intf, msg);
-+ }
-+ break;
-+
-+ default:
-+ /* We don't handle the channel type, so just
-+ * free the message. */
-+ requeue = 0;
-+ }
-+
-+ } else if ((msg->rsp[0] == ((IPMI_NETFN_APP_REQUEST|1) << 2))
-+ && (msg->rsp[1] == IPMI_READ_EVENT_MSG_BUFFER_CMD))
-+ {
-+ /* It's an asyncronous event. */
-+ requeue = handle_read_event_rsp(intf, msg);
-+ } else {
-+ /* It's a response from the local BMC. */
-+ requeue = handle_bmc_rsp(intf, msg);
-+ }
-+
-+ out:
-+ return requeue;
-+}
-+
-+/* Handle a new message from the lower layer. */
-+void ipmi_smi_msg_received(ipmi_smi_t intf,
-+ struct ipmi_smi_msg *msg)
-+{
-+ unsigned long flags;
-+ int rv;
-+
-+
-+ if ((msg->data_size >= 2)
-+ && (msg->data[0] == (IPMI_NETFN_APP_REQUEST << 2))
-+ && (msg->data[1] == IPMI_SEND_MSG_CMD)
-+ && (msg->user_data == NULL))
-+ {
-+ /* This is the local response to a command send, start
-+ the timer for these. The user_data will not be
-+ NULL if this is a response send, and we will let
-+ response sends just go through. */
-+
-+ /* Check for errors, if we get certain errors (ones
-+ that mean basically we can try again later), we
-+ ignore them and start the timer. Otherwise we
-+ report the error immediately. */
-+ if ((msg->rsp_size >= 3) && (msg->rsp[2] != 0)
-+ && (msg->rsp[2] != IPMI_NODE_BUSY_ERR)
-+ && (msg->rsp[2] != IPMI_LOST_ARBITRATION_ERR)
-+ && (msg->rsp[2] != IPMI_BUS_ERR)
-+ && (msg->rsp[2] != IPMI_NAK_ON_WRITE_ERR))
-+ {
-+ int chan = msg->rsp[3] & 0xf;
-+
-+ /* Got an error sending the message, handle it. */
-+ spin_lock_irqsave(&intf->counter_lock, flags);
-+ if (chan >= IPMI_MAX_CHANNELS)
-+ ; /* This shouldn't happen */
-+ else if ((intf->channels[chan].medium
-+ == IPMI_CHANNEL_MEDIUM_8023LAN)
-+ || (intf->channels[chan].medium
-+ == IPMI_CHANNEL_MEDIUM_ASYNC))
-+ intf->sent_lan_command_errs++;
-+ else
-+ intf->sent_ipmb_command_errs++;
-+ spin_unlock_irqrestore(&intf->counter_lock, flags);
-+ intf_err_seq(intf, msg->msgid, msg->rsp[2]);
-+ } else {
-+ /* The message was sent, start the timer. */
-+ intf_start_seq_timer(intf, msg->msgid);
-+ }
-+
-+ ipmi_free_smi_msg(msg);
-+ goto out;
-+ }
-+
-+ /* To preserve message order, if the list is not empty, we
-+ tack this message onto the end of the list. */
-+ spin_lock_irqsave(&intf->waiting_msgs_lock, flags);
-+ if (!list_empty(&intf->waiting_msgs)) {
-+ list_add_tail(&msg->link, &intf->waiting_msgs);
-+ spin_unlock_irqrestore(&intf->waiting_msgs_lock, flags);
-+ goto out;
-+ }
-+ spin_unlock_irqrestore(&intf->waiting_msgs_lock, flags);
-+
-+ rv = handle_new_recv_msg(intf, msg);
-+ if (rv > 0) {
-+ /* Could not handle the message now, just add it to a
-+ list to handle later. */
-+ spin_lock_irqsave(&intf->waiting_msgs_lock, flags);
-+ list_add_tail(&msg->link, &intf->waiting_msgs);
-+ spin_unlock_irqrestore(&intf->waiting_msgs_lock, flags);
-+ } else if (rv == 0) {
-+ ipmi_free_smi_msg(msg);
-+ }
-+
-+ out:
-+ return;
-+}
-+
-+void ipmi_smi_watchdog_pretimeout(ipmi_smi_t intf)
-+{
-+ ipmi_user_t user;
-+
-+ rcu_read_lock();
-+ list_for_each_entry_rcu(user, &intf->users, link) {
-+ if (!user->handler->ipmi_watchdog_pretimeout)
-+ continue;
-+
-+ user->handler->ipmi_watchdog_pretimeout(user->handler_data);
-+ }
-+ rcu_read_unlock();
-+}
-+
-+
-+static struct ipmi_smi_msg *
-+smi_from_recv_msg(ipmi_smi_t intf, struct ipmi_recv_msg *recv_msg,
-+ unsigned char seq, long seqid)
-+{
-+ struct ipmi_smi_msg *smi_msg = ipmi_alloc_smi_msg();
-+ if (!smi_msg)
-+ /* If we can't allocate the message, then just return, we
-+ get 4 retries, so this should be ok. */
-+ return NULL;
-+
-+ memcpy(smi_msg->data, recv_msg->msg.data, recv_msg->msg.data_len);
-+ smi_msg->data_size = recv_msg->msg.data_len;
-+ smi_msg->msgid = STORE_SEQ_IN_MSGID(seq, seqid);
-+
-+#ifdef DEBUG_MSGING
-+ {
-+ int m;
-+ printk("Resend: ");
-+ for (m = 0; m < smi_msg->data_size; m++)
-+ printk(" %2.2x", smi_msg->data[m]);
-+ printk("\n");
-+ }
-+#endif
-+ return smi_msg;
-+}
-+
-+static void check_msg_timeout(ipmi_smi_t intf, struct seq_table *ent,
-+ struct list_head *timeouts, long timeout_period,
-+ int slot, unsigned long *flags)
-+{
-+ struct ipmi_recv_msg *msg;
-+ struct ipmi_smi_handlers *handlers;
-+
-+ if (intf->intf_num == -1)
-+ return;
-+
-+ if (!ent->inuse)
-+ return;
-+
-+ ent->timeout -= timeout_period;
-+ if (ent->timeout > 0)
-+ return;
-+
-+ if (ent->retries_left == 0) {
-+ /* The message has used all its retries. */
-+ ent->inuse = 0;
-+ msg = ent->recv_msg;
-+ list_add_tail(&msg->link, timeouts);
-+ spin_lock(&intf->counter_lock);
-+ if (ent->broadcast)
-+ intf->timed_out_ipmb_broadcasts++;
-+ else if (ent->recv_msg->addr.addr_type == IPMI_LAN_ADDR_TYPE)
-+ intf->timed_out_lan_commands++;
-+ else
-+ intf->timed_out_ipmb_commands++;
-+ spin_unlock(&intf->counter_lock);
-+ } else {
-+ struct ipmi_smi_msg *smi_msg;
-+ /* More retries, send again. */
-+
-+ /* Start with the max timer, set to normal
-+ timer after the message is sent. */
-+ ent->timeout = MAX_MSG_TIMEOUT;
-+ ent->retries_left--;
-+ spin_lock(&intf->counter_lock);
-+ if (ent->recv_msg->addr.addr_type == IPMI_LAN_ADDR_TYPE)
-+ intf->retransmitted_lan_commands++;
-+ else
-+ intf->retransmitted_ipmb_commands++;
-+ spin_unlock(&intf->counter_lock);
-+
-+ smi_msg = smi_from_recv_msg(intf, ent->recv_msg, slot,
-+ ent->seqid);
-+ if (!smi_msg)
-+ return;
-+
-+ spin_unlock_irqrestore(&intf->seq_lock, *flags);
-+
-+ /* Send the new message. We send with a zero
-+ * priority. It timed out, I doubt time is
-+ * that critical now, and high priority
-+ * messages are really only for messages to the
-+ * local MC, which don't get resent. */
-+ handlers = intf->handlers;
-+ if (handlers)
-+ intf->handlers->sender(intf->send_info,
-+ smi_msg, 0);
-+ else
-+ ipmi_free_smi_msg(smi_msg);
-+
-+ spin_lock_irqsave(&intf->seq_lock, *flags);
-+ }
-+}
-+
-+static void ipmi_timeout_handler(long timeout_period)
-+{
-+ ipmi_smi_t intf;
-+ struct list_head timeouts;
-+ struct ipmi_recv_msg *msg, *msg2;
-+ struct ipmi_smi_msg *smi_msg, *smi_msg2;
-+ unsigned long flags;
-+ int i;
-+
-+ rcu_read_lock();
-+ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) {
-+ /* See if any waiting messages need to be processed. */
-+ spin_lock_irqsave(&intf->waiting_msgs_lock, flags);
-+ list_for_each_entry_safe(smi_msg, smi_msg2,
-+ &intf->waiting_msgs, link) {
-+ if (!handle_new_recv_msg(intf, smi_msg)) {
-+ list_del(&smi_msg->link);
-+ ipmi_free_smi_msg(smi_msg);
-+ } else {
-+ /* To preserve message order, quit if we
-+ can't handle a message. */
-+ break;
-+ }
-+ }
-+ spin_unlock_irqrestore(&intf->waiting_msgs_lock, flags);
-+
-+ /* Go through the seq table and find any messages that
-+ have timed out, putting them in the timeouts
-+ list. */
-+ INIT_LIST_HEAD(&timeouts);
-+ spin_lock_irqsave(&intf->seq_lock, flags);
-+ for (i = 0; i < IPMI_IPMB_NUM_SEQ; i++)
-+ check_msg_timeout(intf, &(intf->seq_table[i]),
-+ &timeouts, timeout_period, i,
-+ &flags);
-+ spin_unlock_irqrestore(&intf->seq_lock, flags);
-+
-+ list_for_each_entry_safe(msg, msg2, &timeouts, link)
-+ deliver_err_response(msg, IPMI_TIMEOUT_COMPLETION_CODE);
-+
-+ /*
-+ * Maintenance mode handling. Check the timeout
-+ * optimistically before we claim the lock. It may
-+ * mean a timeout gets missed occasionally, but that
-+ * only means the timeout gets extended by one period
-+ * in that case. No big deal, and it avoids the lock
-+ * most of the time.
-+ */
-+ if (intf->auto_maintenance_timeout > 0) {
-+ spin_lock_irqsave(&intf->maintenance_mode_lock, flags);
-+ if (intf->auto_maintenance_timeout > 0) {
-+ intf->auto_maintenance_timeout
-+ -= timeout_period;
-+ if (!intf->maintenance_mode
-+ && (intf->auto_maintenance_timeout <= 0))
-+ {
-+ intf->maintenance_mode_enable = 0;
-+ maintenance_mode_update(intf);
-+ }
-+ }
-+ spin_unlock_irqrestore(&intf->maintenance_mode_lock,
-+ flags);
-+ }
-+ }
-+ rcu_read_unlock();
-+}
-+
-+static void ipmi_request_event(void)
-+{
-+ ipmi_smi_t intf;
-+ struct ipmi_smi_handlers *handlers;
-+
-+ rcu_read_lock();
-+ /* Called from the timer, no need to check if handlers is
-+ * valid. */
-+ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) {
-+ /* No event requests when in maintenance mode. */
-+ if (intf->maintenance_mode_enable)
-+ continue;
-+
-+ handlers = intf->handlers;
-+ if (handlers)
-+ handlers->request_events(intf->send_info);
-+ }
-+ rcu_read_unlock();
-+}
-+
-+static struct timer_list ipmi_timer;
-+
-+/* Call every ~100 ms. */
-+#define IPMI_TIMEOUT_TIME 100
-+
-+/* How many jiffies does it take to get to the timeout time. */
-+#define IPMI_TIMEOUT_JIFFIES ((IPMI_TIMEOUT_TIME * HZ) / 1000)
-+
-+/* Request events from the queue every second (this is the number of
-+ IPMI_TIMEOUT_TIMES between event requests). Hopefully, in the
-+ future, IPMI will add a way to know immediately if an event is in
-+ the queue and this silliness can go away. */
-+#define IPMI_REQUEST_EV_TIME (1000 / (IPMI_TIMEOUT_TIME))
-+
-+static atomic_t stop_operation;
-+static unsigned int ticks_to_req_ev = IPMI_REQUEST_EV_TIME;
-+
-+static void ipmi_timeout(unsigned long data)
-+{
-+ if (atomic_read(&stop_operation))
-+ return;
-+
-+ ticks_to_req_ev--;
-+ if (ticks_to_req_ev == 0) {
-+ ipmi_request_event();
-+ ticks_to_req_ev = IPMI_REQUEST_EV_TIME;
-+ }
-+
-+ ipmi_timeout_handler(IPMI_TIMEOUT_TIME);
-+
-+ mod_timer(&ipmi_timer, jiffies + IPMI_TIMEOUT_JIFFIES);
-+}
-+
-+
-+static atomic_t smi_msg_inuse_count = ATOMIC_INIT(0);
-+static atomic_t recv_msg_inuse_count = ATOMIC_INIT(0);
-+
-+/* FIXME - convert these to slabs. */
-+static void free_smi_msg(struct ipmi_smi_msg *msg)
-+{
-+ atomic_dec(&smi_msg_inuse_count);
-+ kfree(msg);
-+}
-+
-+struct ipmi_smi_msg *ipmi_alloc_smi_msg(void)
-+{
-+ struct ipmi_smi_msg *rv;
-+ rv = kmalloc(sizeof(struct ipmi_smi_msg), GFP_ATOMIC);
-+ if (rv) {
-+ rv->done = free_smi_msg;
-+ rv->user_data = NULL;
-+ atomic_inc(&smi_msg_inuse_count);
-+ }
-+ return rv;
-+}
-+
-+static void free_recv_msg(struct ipmi_recv_msg *msg)
-+{
-+ atomic_dec(&recv_msg_inuse_count);
-+ kfree(msg);
-+}
-+
-+struct ipmi_recv_msg *ipmi_alloc_recv_msg(void)
-+{
-+ struct ipmi_recv_msg *rv;
-+
-+ rv = kmalloc(sizeof(struct ipmi_recv_msg), GFP_ATOMIC);
-+ if (rv) {
-+ rv->user = NULL;
-+ rv->done = free_recv_msg;
-+ atomic_inc(&recv_msg_inuse_count);
-+ }
-+ return rv;
-+}
-+
-+void ipmi_free_recv_msg(struct ipmi_recv_msg *msg)
-+{
-+ if (msg->user)
-+ kref_put(&msg->user->refcount, free_user);
-+ msg->done(msg);
-+}
-+
-+#ifdef CONFIG_IPMI_PANIC_EVENT
-+
-+static void dummy_smi_done_handler(struct ipmi_smi_msg *msg)
-+{
-+}
-+
-+static void dummy_recv_done_handler(struct ipmi_recv_msg *msg)
-+{
-+}
-+
-+#ifdef CONFIG_IPMI_PANIC_STRING
-+static void event_receiver_fetcher(ipmi_smi_t intf, struct ipmi_recv_msg *msg)
-+{
-+ if ((msg->addr.addr_type == IPMI_SYSTEM_INTERFACE_ADDR_TYPE)
-+ && (msg->msg.netfn == IPMI_NETFN_SENSOR_EVENT_RESPONSE)
-+ && (msg->msg.cmd == IPMI_GET_EVENT_RECEIVER_CMD)
-+ && (msg->msg.data[0] == IPMI_CC_NO_ERROR))
-+ {
-+ /* A get event receiver command, save it. */
-+ intf->event_receiver = msg->msg.data[1];
-+ intf->event_receiver_lun = msg->msg.data[2] & 0x3;
-+ }
-+}
-+
-+static void device_id_fetcher(ipmi_smi_t intf, struct ipmi_recv_msg *msg)
-+{
-+ if ((msg->addr.addr_type == IPMI_SYSTEM_INTERFACE_ADDR_TYPE)
-+ && (msg->msg.netfn == IPMI_NETFN_APP_RESPONSE)
-+ && (msg->msg.cmd == IPMI_GET_DEVICE_ID_CMD)
-+ && (msg->msg.data[0] == IPMI_CC_NO_ERROR))
-+ {
-+ /* A get device id command, save if we are an event
-+ receiver or generator. */
-+ intf->local_sel_device = (msg->msg.data[6] >> 2) & 1;
-+ intf->local_event_generator = (msg->msg.data[6] >> 5) & 1;
-+ }
-+}
-+#endif
-+
-+static void send_panic_events(char *str)
-+{
-+ struct kernel_ipmi_msg msg;
-+ ipmi_smi_t intf;
-+ unsigned char data[16];
-+ struct ipmi_system_interface_addr *si;
-+ struct ipmi_addr addr;
-+ struct ipmi_smi_msg smi_msg;
-+ struct ipmi_recv_msg recv_msg;
-+
-+ si = (struct ipmi_system_interface_addr *) &addr;
-+ si->addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
-+ si->channel = IPMI_BMC_CHANNEL;
-+ si->lun = 0;
-+
-+ /* Fill in an event telling that we have failed. */
-+ msg.netfn = 0x04; /* Sensor or Event. */
-+ msg.cmd = 2; /* Platform event command. */
-+ msg.data = data;
-+ msg.data_len = 8;
-+ data[0] = 0x41; /* Kernel generator ID, IPMI table 5-4 */
-+ data[1] = 0x03; /* This is for IPMI 1.0. */
-+ data[2] = 0x20; /* OS Critical Stop, IPMI table 36-3 */
-+ data[4] = 0x6f; /* Sensor specific, IPMI table 36-1 */
-+ data[5] = 0xa1; /* Runtime stop OEM bytes 2 & 3. */
-+
-+ /* Put a few breadcrumbs in. Hopefully later we can add more things
-+ to make the panic events more useful. */
-+ if (str) {
-+ data[3] = str[0];
-+ data[6] = str[1];
-+ data[7] = str[2];
-+ }
-+
-+ smi_msg.done = dummy_smi_done_handler;
-+ recv_msg.done = dummy_recv_done_handler;
-+
-+ /* For every registered interface, send the event. */
-+ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) {
-+ if (!intf->handlers)
-+ /* Interface is not ready. */
-+ continue;
-+
-+ /* Send the event announcing the panic. */
-+ intf->handlers->set_run_to_completion(intf->send_info, 1);
-+ i_ipmi_request(NULL,
-+ intf,
-+ &addr,
-+ 0,
-+ &msg,
-+ intf,
-+ &smi_msg,
-+ &recv_msg,
-+ 0,
-+ intf->channels[0].address,
-+ intf->channels[0].lun,
-+ 0, 1); /* Don't retry, and don't wait. */
-+ }
-+
-+#ifdef CONFIG_IPMI_PANIC_STRING
-+ /* On every interface, dump a bunch of OEM event holding the
-+ string. */
-+ if (!str)
-+ return;
-+
-+ /* For every registered interface, send the event. */
-+ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) {
-+ char *p = str;
-+ struct ipmi_ipmb_addr *ipmb;
-+ int j;
-+
-+ if (intf->intf_num == -1)
-+ /* Interface was not ready yet. */
-+ continue;
-+
-+ /* First job here is to figure out where to send the
-+ OEM events. There's no way in IPMI to send OEM
-+ events using an event send command, so we have to
-+ find the SEL to put them in and stick them in
-+ there. */
-+
-+ /* Get capabilities from the get device id. */
-+ intf->local_sel_device = 0;
-+ intf->local_event_generator = 0;
-+ intf->event_receiver = 0;
-+
-+ /* Request the device info from the local MC. */
-+ msg.netfn = IPMI_NETFN_APP_REQUEST;
-+ msg.cmd = IPMI_GET_DEVICE_ID_CMD;
-+ msg.data = NULL;
-+ msg.data_len = 0;
-+ intf->null_user_handler = device_id_fetcher;
-+ i_ipmi_request(NULL,
-+ intf,
-+ &addr,
-+ 0,
-+ &msg,
-+ intf,
-+ &smi_msg,
-+ &recv_msg,
-+ 0,
-+ intf->channels[0].address,
-+ intf->channels[0].lun,
-+ 0, 1); /* Don't retry, and don't wait. */
-+
-+ if (intf->local_event_generator) {
-+ /* Request the event receiver from the local MC. */
-+ msg.netfn = IPMI_NETFN_SENSOR_EVENT_REQUEST;
-+ msg.cmd = IPMI_GET_EVENT_RECEIVER_CMD;
-+ msg.data = NULL;
-+ msg.data_len = 0;
-+ intf->null_user_handler = event_receiver_fetcher;
-+ i_ipmi_request(NULL,
-+ intf,
-+ &addr,
-+ 0,
-+ &msg,
-+ intf,
-+ &smi_msg,
-+ &recv_msg,
-+ 0,
-+ intf->channels[0].address,
-+ intf->channels[0].lun,
-+ 0, 1); /* no retry, and no wait. */
-+ }
-+ intf->null_user_handler = NULL;
-+
-+ /* Validate the event receiver. The low bit must not
-+ be 1 (it must be a valid IPMB address), it cannot
-+ be zero, and it must not be my address. */
-+ if (((intf->event_receiver & 1) == 0)
-+ && (intf->event_receiver != 0)
-+ && (intf->event_receiver != intf->channels[0].address))
-+ {
-+ /* The event receiver is valid, send an IPMB
-+ message. */
-+ ipmb = (struct ipmi_ipmb_addr *) &addr;
-+ ipmb->addr_type = IPMI_IPMB_ADDR_TYPE;
-+ ipmb->channel = 0; /* FIXME - is this right? */
-+ ipmb->lun = intf->event_receiver_lun;
-+ ipmb->slave_addr = intf->event_receiver;
-+ } else if (intf->local_sel_device) {
-+ /* The event receiver was not valid (or was
-+ me), but I am an SEL device, just dump it
-+ in my SEL. */
-+ si = (struct ipmi_system_interface_addr *) &addr;
-+ si->addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
-+ si->channel = IPMI_BMC_CHANNEL;
-+ si->lun = 0;
-+ } else
-+ continue; /* No where to send the event. */
-+
-+
-+ msg.netfn = IPMI_NETFN_STORAGE_REQUEST; /* Storage. */
-+ msg.cmd = IPMI_ADD_SEL_ENTRY_CMD;
-+ msg.data = data;
-+ msg.data_len = 16;
-+
-+ j = 0;
-+ while (*p) {
-+ int size = strlen(p);
-+
-+ if (size > 11)
-+ size = 11;
-+ data[0] = 0;
-+ data[1] = 0;
-+ data[2] = 0xf0; /* OEM event without timestamp. */
-+ data[3] = intf->channels[0].address;
-+ data[4] = j++; /* sequence # */
-+ /* Always give 11 bytes, so strncpy will fill
-+ it with zeroes for me. */
-+ strncpy(data+5, p, 11);
-+ p += size;
-+
-+ i_ipmi_request(NULL,
-+ intf,
-+ &addr,
-+ 0,
-+ &msg,
-+ intf,
-+ &smi_msg,
-+ &recv_msg,
-+ 0,
-+ intf->channels[0].address,
-+ intf->channels[0].lun,
-+ 0, 1); /* no retry, and no wait. */
-+ }
-+ }
-+#endif /* CONFIG_IPMI_PANIC_STRING */
-+}
-+#endif /* CONFIG_IPMI_PANIC_EVENT */
-+
-+static int has_panicked;
-+
-+static int panic_event(struct notifier_block *this,
-+ unsigned long event,
-+ void *ptr)
-+{
-+ ipmi_smi_t intf;
-+
-+ if (has_panicked)
-+ return NOTIFY_DONE;
-+ has_panicked = 1;
-+
-+ /* For every registered interface, set it to run to completion. */
-+ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) {
-+ if (!intf->handlers)
-+ /* Interface is not ready. */
-+ continue;
-+
-+ intf->handlers->set_run_to_completion(intf->send_info, 1);
-+ }
-+
-+#ifdef CONFIG_IPMI_PANIC_EVENT
-+ send_panic_events(ptr);
-+#endif
-+
-+ return NOTIFY_DONE;
-+}
-+
-+static struct notifier_block panic_block = {
-+ .notifier_call = panic_event,
-+ .next = NULL,
-+ .priority = 200 /* priority: INT_MAX >= x >= 0 */
-+};
-+
-+static int ipmi_init_msghandler(void)
-+{
-+ int rv;
-+
-+ if (initialized)
-+ return 0;
-+
-+ rv = driver_register(&ipmidriver);
-+ if (rv) {
-+ printk(KERN_ERR PFX "Could not register IPMI driver\n");
-+ return rv;
-+ }
-+
-+ printk(KERN_INFO "ipmi message handler version "
-+ IPMI_DRIVER_VERSION "\n");
-+
-+#ifdef CONFIG_PROC_FS
-+ proc_ipmi_root = proc_mkdir("ipmi", NULL);
-+ if (!proc_ipmi_root) {
-+ printk(KERN_ERR PFX "Unable to create IPMI proc dir");
-+ return -ENOMEM;
-+ }
-+
-+ proc_ipmi_root->owner = THIS_MODULE;
-+#endif /* CONFIG_PROC_FS */
-+
-+ setup_timer(&ipmi_timer, ipmi_timeout, 0);
-+ mod_timer(&ipmi_timer, jiffies + IPMI_TIMEOUT_JIFFIES);
-+
-+ atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
-+
-+ initialized = 1;
-+
-+ return 0;
-+}
-+
-+static __init int ipmi_init_msghandler_mod(void)
-+{
-+ ipmi_init_msghandler();
-+ return 0;
-+}
-+
-+static __exit void cleanup_ipmi(void)
-+{
-+ int count;
-+
-+ if (!initialized)
-+ return;
-+
-+ atomic_notifier_chain_unregister(&panic_notifier_list, &panic_block);
-+
-+ /* This can't be called if any interfaces exist, so no worry about
-+ shutting down the interfaces. */
-+
-+ /* Tell the timer to stop, then wait for it to stop. This avoids
-+ problems with race conditions removing the timer here. */
-+ atomic_inc(&stop_operation);
-+ del_timer_sync(&ipmi_timer);
-+
-+#ifdef CONFIG_PROC_FS
-+ remove_proc_entry(proc_ipmi_root->name, &proc_root);
-+#endif /* CONFIG_PROC_FS */
-+
-+ driver_unregister(&ipmidriver);
-+
-+ initialized = 0;
-+
-+ /* Check for buffer leaks. */
-+ count = atomic_read(&smi_msg_inuse_count);
-+ if (count != 0)
-+ printk(KERN_WARNING PFX "SMI message count %d at exit\n",
-+ count);
-+ count = atomic_read(&recv_msg_inuse_count);
-+ if (count != 0)
-+ printk(KERN_WARNING PFX "recv message count %d at exit\n",
-+ count);
-+}
-+module_exit(cleanup_ipmi);
-+
-+module_init(ipmi_init_msghandler_mod);
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Corey Minyard <minyard@mvista.com>");
-+MODULE_DESCRIPTION("Incoming and outgoing message routing for an IPMI interface.");
-+MODULE_VERSION(IPMI_DRIVER_VERSION);
-+
-+EXPORT_SYMBOL(ipmi_create_user);
-+EXPORT_SYMBOL(ipmi_destroy_user);
-+EXPORT_SYMBOL(ipmi_get_version);
-+EXPORT_SYMBOL(ipmi_request_settime);
-+EXPORT_SYMBOL(ipmi_request_supply_msgs);
-+EXPORT_SYMBOL(ipmi_register_smi);
-+EXPORT_SYMBOL(ipmi_unregister_smi);
-+EXPORT_SYMBOL(ipmi_register_for_cmd);
-+EXPORT_SYMBOL(ipmi_unregister_for_cmd);
-+EXPORT_SYMBOL(ipmi_smi_msg_received);
-+EXPORT_SYMBOL(ipmi_smi_watchdog_pretimeout);
-+EXPORT_SYMBOL(ipmi_alloc_smi_msg);
-+EXPORT_SYMBOL(ipmi_addr_length);
-+EXPORT_SYMBOL(ipmi_validate_addr);
-+EXPORT_SYMBOL(ipmi_set_gets_events);
-+EXPORT_SYMBOL(ipmi_smi_watcher_register);
-+EXPORT_SYMBOL(ipmi_smi_watcher_unregister);
-+EXPORT_SYMBOL(ipmi_set_my_address);
-+EXPORT_SYMBOL(ipmi_get_my_address);
-+EXPORT_SYMBOL(ipmi_set_my_LUN);
-+EXPORT_SYMBOL(ipmi_get_my_LUN);
-+EXPORT_SYMBOL(ipmi_smi_add_proc_entry);
-+EXPORT_SYMBOL(ipmi_user_set_run_to_completion);
-+EXPORT_SYMBOL(ipmi_free_recv_msg);
diff -rduNp linux-2.6.20.3.orig/drivers/hwmon/Kconfig linux-2.6.20.3/drivers/hwmon/Kconfig
--- linux-2.6.20.3.orig/drivers/hwmon/Kconfig 2007-03-13 19:27:08.000000000 +0100
+++ linux-2.6.20.3/drivers/hwmon/Kconfig 2007-03-14 14:23:02.000000000 +0100