diff options
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.patch | 4189 |
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 |