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kumquat-buildroot/toolchain/kernel-headers/linux-2.6.21.5-007-ipmisensors-20070314-1214.patch

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Add AVR32 kernel patches for linux-2.6.21.5
2007-07-31 17:49:25 +02:00
diff -rduNp linux-2.6.20.3.orig/drivers/char/ipmi/ipmi_msghandler.c linux-2.6.20.3/drivers/char/ipmi/ipmi_msghandler.c
--- linux-2.6.20.3.orig/drivers/char/ipmi/ipmi_msghandler.c 2007-03-13 19:27:08.000000000 +0100
+++ linux-2.6.20.3/drivers/char/ipmi/ipmi_msghandler.c 2007-03-14 14:23:02.000000000 +0100
@@ -1954,6 +1954,24 @@ static void remove_proc_entries(ipmi_smi
#endif /* CONFIG_PROC_FS */
}
+/*
+ * Retrieves the bmc_device struct for a given ipmi interface number (or NULL if none).
+ */
+struct device *ipmi_get_bmcdevice(int if_num)
+{
+ ipmi_smi_t intf;
+ mutex_lock(&ipmi_interfaces_mutex);
+ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) {
+ if (intf->intf_num == if_num){
+ mutex_unlock(&ipmi_interfaces_mutex);
+ return &intf->bmc->dev->dev;
+ }
+ }
+ mutex_unlock(&ipmi_interfaces_mutex);
+
+ return NULL;
+}
+
static int __find_bmc_guid(struct device *dev, void *data)
{
unsigned char *id = data;
@@ -4183,3 +4201,4 @@ 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);
+EXPORT_SYMBOL(ipmi_get_bmcdevice);
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
@@ -218,6 +218,16 @@ config SENSORS_GL520SM
This driver can also be built as a module. If so, the module
will be called gl520sm.
+config SENSORS_IPMI
+ tristate "IPMI Hardware Monitoring Support"
+ depends on HWMON && IPMI_HANDLER && EXPERIMENTAL
+ help
+ If you say yes here you get support for sensors monitored by
+ an IPMI baseboard management controller (BMC).
+
+ This driver can also be built as a module. If so, the module
+ will be called ipmisensors.
+
config SENSORS_IT87
tristate "ITE IT87xx and compatibles"
depends on HWMON && I2C
diff -rduNp linux-2.6.20.3.orig/drivers/hwmon/Makefile linux-2.6.20.3/drivers/hwmon/Makefile
--- linux-2.6.20.3.orig/drivers/hwmon/Makefile 2007-03-13 19:27:08.000000000 +0100
+++ linux-2.6.20.3/drivers/hwmon/Makefile 2007-03-14 14:23:02.000000000 +0100
@@ -28,6 +28,7 @@ obj-$(CONFIG_SENSORS_FSCPOS) += fscpos.o
obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o
obj-$(CONFIG_SENSORS_GL520SM) += gl520sm.o
obj-$(CONFIG_SENSORS_HDAPS) += hdaps.o
+obj-$(CONFIG_SENSORS_IPMI) += ipmisensors.o
obj-$(CONFIG_SENSORS_IT87) += it87.o
obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.o
obj-$(CONFIG_SENSORS_LM63) += lm63.o
diff -rduNp linux-2.6.20.3.orig/drivers/hwmon/ipmisensors.c linux-2.6.20.3/drivers/hwmon/ipmisensors.c
--- linux-2.6.20.3.orig/drivers/hwmon/ipmisensors.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.3/drivers/hwmon/ipmisensors.c 2007-03-14 14:44:42.000000000 +0100
@@ -0,0 +1,1552 @@
+/*
+ * ipmisensors.c - lm-sensors/hwmon interface to IPMI sensors.
+ *
+ * Copyright (C) 2004-2006 Yani Ioannou <yani.ioannou@gmail.com>
+ *
+ * Adapted from bmcsensors (lm-sensors for linux 2.4)
+ * bmcsensors (C) Mark D. Studebaker <mdsxyz123@yahoo.com>
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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/init.h>
+#include <linux/module.h>
+#include <linux/param.h>
+#include <linux/hwmon.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/hwmon.h>
+
+#include "ipmisensors.h"
+
+/****** Function Prototypes ******/
+static void ipmisensors_send_message(struct ipmisensors_bmc_data *bmc,
+ long msgid, struct kernel_ipmi_msg *msg);
+static void ipmisensors_reserve_sdr(struct ipmisensors_bmc_data *bmc);
+static void ipmisensors_get_sdr(struct ipmisensors_bmc_data *bmc, u16 res_id,
+ u16 record, u8 offset);
+static void ipmisensors_set_sensor_threshold(struct ipmisensors_bmc_data *bmc,
+ u8 number, int value,
+ int lim_index);
+static void ipmisensors_get_reading(struct ipmisensors_bmc_data *bmc,
+ struct sdrdata *sdr);
+static void ipmisensors_msg_handler(struct ipmi_recv_msg *msg,
+ void *user_msg_data);
+static int ipmisensors_intf_registered(int ipmi_intf);
+static int ipmisensors_bmc_registered(struct device *bmc);
+static void ipmisensors_register_bmc(int ipmi_intf, struct ipmi_addr *address);
+static void ipmisensors_unregister_bmc(int ipmi_intf);
+static void ipmisensors_unregister_bmc_all(void);
+static void ipmisensors_new_smi(int if_num, struct device *dev);
+static void ipmisensors_smi_gone(int if_num);
+static void ipmisensors_update_bmc(struct work_struct *);
+static void ipmisensors_cleanup(void);
+
+/****** Static Vars ******/
+
+/* set when module is being removed */
+static int cleanup = 0;
+
+/* ipmisensors driver data */
+static struct ipmisensors_data driver_data = {
+ .driver_name = "bmc",
+ .bmc_data = LIST_HEAD_INIT(driver_data.bmc_data),
+ .interfaces = 0,
+ .smi_watcher = {
+ .owner = THIS_MODULE,
+ .new_smi = ipmisensors_new_smi,
+ .smi_gone = ipmisensors_smi_gone,
+ },
+ .ipmi_hndlrs = {
+ .ipmi_recv_hndl = ipmisensors_msg_handler,
+ },
+};
+
+/* sensor refresh workqueue */
+static struct workqueue_struct *ipmisensors_workqueue;
+
+/****** SDR List Functions ******/
+/**
+ * Creates a new sdrdata struct, or returns NULL if insufficient memory.
+ */
+static struct sdrdata *ipmisensors_new_sdr(void)
+{
+ struct sdrdata *sdr;
+
+ sdr = kmem_cache_alloc(driver_data.sdrdata_cache, GFP_ATOMIC);
+ if (sdr) {
+ memset(sdr, 0, sizeof(struct sdrdata));
+ } else {
+ printk(KERN_ERR
+ "ipmisensors: Couldn't allocate memory for new SDR\n");
+ }
+
+ return sdr;
+}
+
+/**
+ * Adds the given sdrdata struct to the given bmc's SDR list.
+ *
+ * @bmc: the bmc to send the message to.
+ */
+static inline void ipmisensors_add_sdr(struct ipmisensors_bmc_data *bmc,
+ struct sdrdata *sdr)
+{
+ list_add(&sdr->list, &bmc->sdrs);
+ printk(KERN_DEBUG
+ "ipmisensors: SDR %d: type 0x%02x (%s)\n",
+ bmc->sdr_count, sdr->stype, sdr->id);
+ bmc->sdr_count++;
+}
+
+/**
+ * Cleanup the sdr list for the given BMC.
+ *
+ * @bmc: the bmc to send the message to.
+ */
+static void ipmisensors_sdr_cleanup(struct ipmisensors_bmc_data *bmc)
+{
+ struct sdrdata *cursor, *next;
+
+ /* find and free each sdr data struct */
+ list_for_each_entry_safe(cursor, next, &bmc->sdrs, list) {
+ device_remove_file(bmc->dev, &cursor->attr.dev_attr);
+ device_remove_file(bmc->dev, &cursor->attr_min.dev_attr);
+ device_remove_file(bmc->dev, &cursor->attr_max.dev_attr);
+ device_remove_file(bmc->dev, &cursor->attr_label.dev_attr);
+
+ kfree(cursor->attr_name);
+ kfree(cursor->attr_max_name);
+ kfree(cursor->attr_min_name);
+ kfree(cursor->attr_label_name);
+
+ list_del(&cursor->list);
+ kmem_cache_free(driver_data.sdrdata_cache, cursor);
+ }
+}
+
+/* worker function for workqueue ipmisensors_workqueue */
+static void ipmisensors_update_bmc(struct work_struct *work)
+{
+ struct ipmisensors_bmc_data *bmc = container_of(work, struct ipmisensors_bmc_data, update_work.work);
+
+ /* don't start an update cycle if one already in progress */
+ if (bmc->state != STATE_READING) {
+ struct sdrdata *cursor, *next;
+ bmc->state = STATE_READING;
+ printk(KERN_DEBUG "ipmisensors: starting update\n");
+
+ /* init semaphore to 1 for update cycle */
+ sema_init(&bmc->update_semaphore, 1);
+
+ /* update each sdr reading */
+ list_for_each_entry_safe(cursor, next, &bmc->sdrs, list) {
+ ipmisensors_get_reading(bmc, cursor);
+ }
+ }
+
+ /* wait for readings (need timeout?) */
+ down_interruptible(&bmc->update_semaphore);
+
+ printk(KERN_DEBUG "ipmisensors: update complete\n");
+
+ bmc->state = STATE_DONE;
+
+ /* if the module isn't cleaning up, schedule another update */
+ if (!cleanup)
+ queue_delayed_work(ipmisensors_workqueue, &bmc->update_work,
+ bmc->update_period * HZ);
+}
+
+/****** IPMI Message Sending ******/
+
+/**
+ * Send a message to the IPMI BMC
+ *
+ * @bmc: the bmc to send the message to.
+ * @msgid: the message id to use.
+ * @msg: the ipmi message structure.
+ */
+static void ipmisensors_send_message(struct ipmisensors_bmc_data *bmc,
+ long msgid, struct kernel_ipmi_msg *msg)
+{
+ if (msg->data == NULL)
+ printk(KERN_DEBUG "ipmisensors: Send 0x%x\n", msg->cmd);
+ else
+ printk(KERN_DEBUG "ipmisensors: Send 0x%x 0x%x 0x%x\n",
+ msg->cmd, msg->data[0], msg->data[1]);
+
+ /* This should be ipmi_request, but Corey had to remove
+ * that due to it being unused at the moment, as soon as
+ * this makes it into the kernel we should request it be re-instated.
+ */
+ ipmi_request_settime(bmc->user, &bmc->address, msgid, msg, bmc, 0,
+ -1, 0);
+}
+
+/**
+ * Compose and send a "reserve SDR" message
+ *
+ * @bmc: the bmc to send the message to.
+ */
+static void ipmisensors_reserve_sdr(struct ipmisensors_bmc_data *bmc)
+{
+ bmc->tx_message.netfn = IPMI_NETFN_STORAGE_REQUEST;
+ bmc->tx_message.cmd = IPMI_RESERVE_SDR;
+ bmc->tx_message.data_len = 0;
+ bmc->tx_message.data = NULL;
+
+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
+}
+
+/**
+ * Componse and send a "get SDR" message
+ *
+ * @bmc: the bmc to send the message to.
+ * @res_id:
+ * @record:
+ * @offset:
+ */
+static void ipmisensors_get_sdr(struct ipmisensors_bmc_data *bmc, u16 res_id,
+ u16 record, u8 offset)
+{
+ printk(KERN_DEBUG "ipmisensors: Get SDR 0x%x 0x%x 0x%x\n",
+ res_id, record, offset);
+ bmc->tx_message.netfn = IPMI_NETFN_STORAGE_REQUEST;
+ bmc->tx_message.cmd = IPMI_GET_SDR;
+ bmc->tx_message.data_len = 6;
+ bmc->tx_message.data = bmc->tx_msg_data;
+ bmc->tx_msg_data[0] = res_id & 0xff;
+ bmc->tx_msg_data[1] = res_id >> 8;
+ bmc->tx_msg_data[2] = record & 0xff;
+ bmc->tx_msg_data[3] = record >> 8;
+ bmc->tx_msg_data[4] = offset;
+ bmc->tx_msg_data[5] = bmc->ipmi_sdr_partial_size;
+
+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
+}
+
+/**
+ * Compose and send a "set sensor threshold" message
+ *
+ * @bmc: the bmc to send the message to.
+ * @id: the ipmi id number of the sensor.
+ * @value: the new value for the threshold.
+ * @lim_index: the index in the lim[] array for which this value applies.
+ */
+static void ipmisensors_set_sensor_threshold(struct ipmisensors_bmc_data *bmc,
+ u8 number, int value,
+ int lim_index)
+{
+ int i;
+
+ printk(KERN_DEBUG "ipmisensors: Set SDR Threshold %d %d %d\n",
+ number, value, lim_index);
+ bmc->tx_message.netfn = IPMI_NETFN_STORAGE_REQUEST;
+ bmc->tx_message.cmd = IPMI_SET_SENSOR_THRESHOLD;
+ bmc->tx_message.data_len = 8;
+ bmc->tx_message.data = bmc->tx_msg_data;
+ bmc->tx_msg_data[0] = number & 0xff;
+ bmc->tx_msg_data[1] = 0x01 << lim_index;
+
+ if (lim_index > 5 || lim_index < 0) {
+ printk(KERN_INFO
+ "ipmisensors: Error - ipmisensors_set_sensor_threshold given invalid lim_index\n");
+ return;
+ }
+
+ for (i = 2; i < 8; i++)
+ bmc->tx_msg_data[i] = 0x00;
+
+ bmc->tx_msg_data[lim_index] = value && 0xff;
+
+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
+}
+
+/**
+ * Compose and send a "get sensor reading" message for the given sdr.
+ *
+ * @bmc: the bmc to send the message to.
+ * @sdr: the sdr of the sensor to get the reading for.
+ */
+static void ipmisensors_get_reading(struct ipmisensors_bmc_data *bmc,
+ struct sdrdata *sdr)
+{
+ bmc->tx_message.netfn = IPMI_NETFN_SENSOR_EVENT_REQUEST;
+ bmc->tx_message.cmd = IPMI_GET_SENSOR_STATE_READING;
+ bmc->tx_message.data_len = 1;
+ bmc->tx_message.data = bmc->tx_msg_data;
+ bmc->tx_msg_data[0] = sdr->number;
+ bmc->current_sdr = sdr;
+
+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
+ down_interruptible(&bmc->update_semaphore);
+}
+
+/****** IPMI Message Receiving ******/
+
+/**
+ * Process an sensor reading response message.
+ *
+ * @bmc: the bmc the message is from
+ * @msg: the IPMI SDR response message
+ */
+static void ipmisensors_rcv_reading_msg(struct ipmisensors_bmc_data *bmc,
+ struct kernel_ipmi_msg *msg)
+{
+ struct sdrdata *sdr = bmc->current_sdr;
+
+ if (sdr == NULL) {
+ printk(KERN_ERR
+ "ipmisensors: Error ipmisensors_rcv_reading with NULL sdr\n");
+ return;
+ }
+
+ sdr->reading = msg->data[1];
+ sdr->status = msg->data[2];
+ sdr->thresholds = msg->data[3];
+
+ printk(KERN_DEBUG "ipmisensors: sensor %d (type %d) reading %d\n",
+ sdr->number, sdr->stype, msg->data[1]);
+
+ up(&bmc->update_semaphore);
+}
+
+/**
+ * Unpack based on string type, convert to normal, null terminate.
+ */
+static void ipmisensors_sprintf(u8 * to, u8 * from, u8 type, u8 length)
+{
+ static const u8 *bcdplus = "0123456789 -.:,_";
+ int i;
+
+ switch (type) {
+ case 0: /* unicode */
+ for (i = 0; i < length; i++)
+ *to++ = (*from++ & 0x7f);
+ *to = 0;
+ break;
+ case 1: /* BCD Plus */
+ for (i = 0; i < length; i++)
+ *to++ = bcdplus[*from++ & 0x0f];
+ *to = 0;
+ break;
+ case 2: /* packed ascii *//* if not a mult. of 3 this will run over */
+ for (i = 0; i < length; i += 3) {
+ *to++ = *from & 0x3f;
+ *to++ = *from >> 6 | ((*(from+1) & 0xf) << 2);
+ from++;
+ *to++ = *from >> 4 | ((*(from+1) & 0x3) << 4);
+ from++;
+ *to++ = (*from++ >> 2) & 0x3f;
+ }
+ *to = 0;
+ break;
+ case 3: /* normal */
+ if (length > 1)
+ memcpy(to, from, length);
+ to[length] = 0;
+ break;
+ }
+}
+
+/* IPMI V1.5 Section 30 */
+static const int exps[] =
+ { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000 };
+
+/* Return 0 for fan, 2 for temp, 3 for voltage
+ We could make it variable based on the accuracy (= log10(m * 10**k2));
+ this would work for /proc output, however libsensors resolution
+ is statically set in lib/chips.c */
+static int decplaces(struct sdrdata *sd)
+{
+ switch (sd->stype) {
+ case STYPE_TEMP:
+ return 2;
+ case STYPE_CURR:
+ case STYPE_VOLT:
+ return 3;
+ case STYPE_FAN:
+ default:
+ return 0;
+ }
+}
+
+/* convert a raw value to a reading. IMPI V1.5 Section 30 */
+static long conv_val(int value, struct sdrdata *sd)
+{
+ u8 k1, k2;
+ long r;
+
+ r = value * sd->m;
+ k1 = sd->k & 0x0f;
+ k2 = sd->k >> 4;
+ if (k1 < 8)
+ r += sd->b * exps[k1];
+ else
+ r += sd->b / exps[16 - k1];
+ r *= exps[decplaces(sd)];
+ if (k2 < 8) {
+ if (sd->linear != 7)
+ r *= exps[k2];
+ else
+ /* this will always truncate to 0: r = 1 / (exps[k2] * r); */
+ r = 0;
+ } else {
+ if (sd->linear != 7)
+ r /= exps[16 - k2];
+ else {
+ if (r != 0)
+ /* 1 / x * 10 ** (-m) == 10 ** m / x */
+ r = exps[16 - k2] / r;
+ else
+ r = 0;
+ }
+ }
+
+ return r;
+}
+
+static const char *threshold_text[] = {
+ "upper non-recoverable threshold",
+ "upper critical threshold",
+ "upper non-critical threshold",
+ "lower non-recoverable threshold",
+ "lower critical threshold",
+ "lower non-critical threshold",
+ "positive-going hysteresis",
+ "negative-going hysteresis" /* unused */
+};
+
+/* select two out of the 8 possible readable thresholds, and place indexes into the limits
+ array into lim1 and lim2. Set writable flags */
+static void ipmisensors_select_thresholds(struct sdrdata *sd)
+{
+ u8 capab = sd->capab;
+ u16 mask = sd->thresh_mask;
+ int tmp;
+
+ sd->lim1 = -1;
+ sd->lim2 = -1;
+ sd->lim1_write = 0;
+ sd->lim2_write = 0;
+
+ if (((capab & 0x0c) == 0x04) || /* readable thresholds ? */
+ ((capab & 0x0c) == 0x08)) {
+ /* select upper threshold */
+ if (mask & 0x10) { /* upper crit */
+ sd->lim1 = 1;
+ if ((capab & 0x0c) == 0x08 && (mask & 0x1000))
+ sd->lim1_write = 1;
+ } else if (mask & 0x20) { /* upper non-recov */
+ sd->lim1 = 0;
+ if ((capab & 0x0c) == 0x08 && (mask & 0x2000))
+ sd->lim1_write = 1;
+ } else if (mask & 0x08) { /* upper non-crit */
+ sd->lim1 = 2;
+ if ((capab & 0x0c) == 0x08 && (mask & 0x0800))
+ sd->lim1_write = 1;
+ }
+
+ /* select lower threshold */
+ if ((((capab & 0x30) == 0x10) || /* readable ? */
+ ((capab & 0x30) == 0x20)) && /* pos hyst */
+ sd->stype == STYPE_TEMP)
+ sd->lim2 = 6;
+ else if (mask & 0x02) { /* lower crit */
+ sd->lim2 = 4;
+ if ((capab & 0x0c) == 0x08 && (mask & 0x0200))
+ sd->lim2_write = 1;
+ } else if (mask & 0x04) { /* lower non-recov */
+ sd->lim2 = 3;
+ if ((capab & 0x0c) == 0x08 && (mask & 0x0400))
+ sd->lim2_write = 1;
+ } else if (mask & 0x01) { /* lower non-crit */
+ sd->lim2 = 5;
+ if ((capab & 0x0c) == 0x08 && (mask & 0x0100))
+ sd->lim2_write = 1;
+ }
+ }
+
+ /* swap lim1/lim2 if m < 0 or function is 1/x (but not both!) */
+ if ((sd->m < 0 && sd->linear != 7) || (sd->m >= 0 && sd->linear == 7)) {
+ tmp = sd->lim1;
+ sd->lim1 = sd->lim2;
+ sd->lim2 = tmp;
+ }
+
+ if (sd->lim1 >= 0)
+ printk(KERN_INFO "ipmisensors: using %s for upper limit\n",
+ threshold_text[sd->lim1]);
+ else
+ printk(KERN_DEBUG "ipmisensors: no readable upper limit\n");
+
+ if (sd->lim2 >= 0)
+ printk(KERN_INFO "ipmisensors: using %s for lower limit\n",
+ threshold_text[sd->lim2]);
+ else
+ printk(KERN_DEBUG "ipmisensors: no readable lower limit\n");
+}
+
+/************* sysfs callback functions *********/
+static ssize_t show_update_period(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ipmisensors_bmc_device_attribute *aattr =
+ to_ipmisensors_bmc_dev_attr(attr);
+
+ return snprintf(buf, 20, "%d\n", aattr->bmc->update_period);
+}
+
+static ssize_t store_update_period(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ipmisensors_bmc_device_attribute *aattr =
+ to_ipmisensors_bmc_dev_attr(attr);
+
+ aattr->bmc->update_period = simple_strtoul(buf, NULL, 10);;
+ return count;
+};
+
+static ssize_t show_sensor(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct ipmisensors_device_attribute *sattr =
+ to_ipmisensors_dev_attr(attr);
+ return snprintf(buf, 20, "%ld\n",
+ conv_val(sattr->sdr->reading, sattr->sdr));
+}
+
+static ssize_t show_sensor_max(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ long max = 0;
+ struct ipmisensors_device_attribute *sattr =
+ to_ipmisensors_dev_attr(attr);
+
+ if (sattr->sdr->lim1 >= 0)
+ max = conv_val(sattr->sdr->limits[sattr->sdr->lim1],
+ sattr->sdr);
+ return snprintf(buf, 20, "%ld\n", max);
+}
+
+static ssize_t show_sensor_min(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ long min = 0;
+ struct ipmisensors_device_attribute *sattr =
+ to_ipmisensors_dev_attr(attr);
+
+ if (sattr->sdr->lim2 >= 0)
+ min = conv_val(sattr->sdr->limits[sattr->sdr->lim2],
+ sattr->sdr);
+ return snprintf(buf, 20, "%ld\n", min);
+};
+
+static ssize_t show_sensor_label(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u8 label[SDR_MAX_UNPACKED_ID_LENGTH];
+ struct ipmisensors_device_attribute *sattr =
+ to_ipmisensors_dev_attr(attr);
+
+ ipmisensors_sprintf(label, sattr->sdr->id, sattr->sdr->string_type,
+ sattr->sdr->id_length);
+ return snprintf(buf, 20, "%s\n", label);
+};
+
+static ssize_t store_sensor_max(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ long val = simple_strtoul(buf, NULL, 10);
+ struct ipmisensors_device_attribute *sattr =
+ to_ipmisensors_dev_attr(attr);
+ printk(KERN_DEBUG "ipmisensors: set max on sensor #%d to %ld",
+ sattr->sdr->number, val);
+ ipmisensors_set_sensor_threshold(sattr->sdr->bmc, sattr->sdr->number,
+ val, sattr->sdr->lim1);
+ return count;
+};
+
+static ssize_t store_sensor_min(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ long val = simple_strtoul(buf, NULL, 10);
+ struct ipmisensors_device_attribute *sattr =
+ to_ipmisensors_dev_attr(attr);
+ printk(KERN_DEBUG "ipmisensors: set min on sensor #%d to %ld",
+ sattr->sdr->number, val);
+ ipmisensors_set_sensor_threshold(sattr->sdr->bmc, sattr->sdr->number,
+ val, sattr->sdr->lim2);
+ return count;
+};
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct ipmisensors_bmc_device_attribute *aattr =
+ to_ipmisensors_bmc_dev_attr(attr);
+ return snprintf(buf, 20, "%d\n", aattr->bmc->alarms);
+};
+
+static ssize_t show_name(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, 20, "%s\n", driver_data.driver_name);
+};
+
+/* work function to build the sysfs entries using the ipmi sdrs */
+static void ipmisensors_build_sysfs(struct work_struct *work)
+{
+ int temps = 0, volts = 0, currs = 0, fans = 0;
+ struct sdrdata *cursor, *next;
+ struct ipmisensors_bmc_data *bmc = container_of(work, struct ipmisensors_bmc_data, sysfs_work);
+
+ /* find and create entries for each sdr data struct */
+ list_for_each_entry_safe(cursor, next, &bmc->sdrs, list) {
+ u8 id[SDR_MAX_UNPACKED_ID_LENGTH];
+
+ cursor->attr_name =
+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
+ GFP_KERNEL);
+ cursor->attr_max_name =
+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
+ GFP_KERNEL);
+ cursor->attr_min_name =
+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
+ GFP_KERNEL);
+
+ if (cursor->id_length > 0) {
+ cursor->attr_label_name =
+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
+ GFP_KERNEL);
+
+ if (cursor->attr_label_name == NULL) {
+ printk(KERN_INFO
+ "ipmisensors: Out of memory (kmalloc failed)");
+ kfree(cursor->attr_name);
+ kfree(cursor->attr_max_name);
+ kfree(cursor->attr_min_name);
+ return;
+ }
+ }
+
+ if (cursor->attr_name == NULL || cursor->attr_max_name == NULL
+ || cursor->attr_min_name == NULL
+ || cursor->attr_label_name == NULL) {
+ printk(KERN_INFO
+ "ipmisensors: Out of memory (kmalloc failed)");
+ kfree(cursor->attr_name);
+ kfree(cursor->attr_max_name);
+ kfree(cursor->attr_min_name);
+ kfree(cursor->attr_label_name);
+ return;
+ }
+
+ switch (cursor->stype) {
+ case (STYPE_TEMP):
+ /* create the name of the sensor */
+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
+ "temp%d_input", ++temps);
+ /* create min, max attributes */
+ snprintf(cursor->attr_max_name, MAX_FILENAME_LENGTH,
+ "temp%d_max", temps);
+ snprintf(cursor->attr_min_name, MAX_FILENAME_LENGTH,
+ "temp%d_min", temps);
+ /* create the label of the sensor */
+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
+ "temp%d_label", temps);
+ break;
+ case (STYPE_VOLT):
+ /* create the name of the sensor */
+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
+ "in%d_input", ++volts);
+ /* create min, max attributes */
+ snprintf(cursor->attr_max_name, MAX_FILENAME_LENGTH,
+ "in%d_max", volts);
+ snprintf(cursor->attr_min_name, MAX_FILENAME_LENGTH,
+ "in%d_min", volts);
+ /* create the label of the sensor */
+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
+ "in%d_label", volts);
+ break;
+ case (STYPE_CURR):
+ /* create the name of the sensor */
+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
+ "curr%d_input", ++currs);
+ /* create min, max attributes */
+ sprintf(cursor->attr_max_name, "curr%d_max", currs);
+ sprintf(cursor->attr_min_name, "curr%d_min", currs);
+ /* create the label of the sensor */
+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
+ "curr%d_label", currs);
+ break;
+ case (STYPE_FAN):
+ /* create the name of the sensor */
+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
+ "fan%d_input", ++fans);
+ /* create min, max attributes */
+ sprintf(cursor->attr_max_name, "fan%d_max", fans);
+ sprintf(cursor->attr_min_name, "fan%d_min", fans);
+ /* create the label of the sensor */
+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
+ "fan%d_label", fans);
+ break;
+ default:
+ printk(KERN_INFO "ipmisensors: unkown sensor type\n");
+ continue;
+ }
+
+ cursor->attr.dev_attr.attr.name = cursor->attr_name;
+ cursor->attr.dev_attr.attr.mode = S_IRUGO;
+ cursor->attr.dev_attr.attr.owner = THIS_MODULE;
+ cursor->attr.dev_attr.show = show_sensor;
+ cursor->attr.dev_attr.store = NULL;
+ cursor->attr.sdr = cursor;
+
+ cursor->attr_min.dev_attr.attr.name = cursor->attr_min_name;
+ cursor->attr_min.dev_attr.attr.owner = THIS_MODULE;
+ cursor->attr_min.dev_attr.show = show_sensor_min;
+ cursor->attr_min.sdr = cursor;
+
+ if (cursor->lim2_write) {
+ printk(KERN_INFO
+ "ipmisensors: You have a writable sensor threshold! Send me an e-mail at <yani.ioannou@gmail.com>.\n");
+ cursor->attr_min.dev_attr.store = store_sensor_min;
+ cursor->attr_min.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
+ } else {
+ cursor->attr_min.dev_attr.store = NULL;
+ cursor->attr_min.dev_attr.attr.mode = S_IRUGO;
+ }
+
+ cursor->attr_max.dev_attr.attr.name = cursor->attr_max_name;
+ cursor->attr_max.dev_attr.attr.owner = THIS_MODULE;
+ cursor->attr_max.dev_attr.show = show_sensor_max;
+ cursor->attr_max.sdr = cursor;
+
+ if (cursor->lim1_write) {
+ printk(KERN_INFO
+ "ipmisensors: You have a writable sensor threshold! Send me an e-mail at <yani.ioannou@gmail.com>.\n");
+ cursor->attr_max.dev_attr.store = store_sensor_max;
+ cursor->attr_max.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
+ } else {
+ cursor->attr_max.dev_attr.store = NULL;
+ cursor->attr_max.dev_attr.attr.mode = S_IRUGO;
+ }
+
+ if (cursor->id_length > 0) {
+ cursor->attr_label.dev_attr.attr.name =
+ cursor->attr_label_name;
+ cursor->attr_label.dev_attr.attr.mode = S_IRUGO;
+ cursor->attr_label.dev_attr.attr.owner = THIS_MODULE;
+ cursor->attr_label.dev_attr.show = show_sensor_label;
+ cursor->attr_label.dev_attr.store = NULL;
+ cursor->attr_label.sdr = cursor;
+ }
+
+ printk(KERN_INFO
+ "ipmisensors: registering sensor %d: (type 0x%.2x) "
+ "(fmt=%d; m=%d; b=%d; k1=%d; k2=%d; cap=0x%.2x; mask=0x%.4x)\n",
+ cursor->number, cursor->stype, cursor->format, cursor->m,
+ cursor->b, cursor->k & 0xf, cursor->k >> 4,
+ cursor->capab, cursor->thresh_mask);
+
+ if (cursor->id_length > 0) {
+ ipmisensors_sprintf(id, cursor->id, cursor->string_type,
+ cursor->id_length);
+ switch (cursor->stype) {
+ case (STYPE_TEMP):
+ printk(KERN_INFO
+ "ipmisensors: sensors.conf: label temp%d \"%s\"\n",
+ temps, id);
+ break;
+ case (STYPE_VOLT):
+ printk(KERN_INFO
+ "ipmisensors: sensors.conf: label in%d \"%s\"\n",
+ volts, id);
+ break;
+ case (STYPE_CURR):
+ printk(KERN_INFO
+ "ipmisensors: sensors.conf: label curr%d \"%s\"\n",
+ currs, id);
+ break;
+ case (STYPE_FAN):
+ printk(KERN_INFO
+ "ipmisensors: sensors.conf: label fan%d \"%s\"\n",
+ fans, id);
+ break;
+ }
+ }
+
+ ipmisensors_select_thresholds(cursor);
+
+ if (cursor->linear != 0 && cursor->linear != 7) {
+ printk(KERN_INFO
+ "ipmisensors: sensor %d: nonlinear function 0x%.2x unsupported, expect bad results\n",
+ cursor->number, cursor->linear);
+ }
+
+ if ((cursor->format & 0x03) == 0x02) {
+ printk(KERN_INFO
+ "ipmisensors: sensor %d: 1's complement format unsupported, expect bad results\n",
+ cursor->number);
+ } else if ((cursor->format & 0x03) == 0x03) {
+ printk(KERN_INFO
+ "ipmisensors: sensor %d: threshold sensor only, no readings available",
+ cursor->number);
+ }
+
+ if (cursor->lim1_write || cursor->lim2_write)
+ cursor->attr.dev_attr.attr.mode = 0644;
+ else
+ cursor->attr.dev_attr.attr.mode = 0444;
+
+ if (device_create_file(bmc->dev, &cursor->attr.dev_attr) < 0
+ || device_create_file(bmc->dev,
+ &cursor->attr_min.dev_attr) < 0
+ || device_create_file(bmc->dev,
+ &cursor->attr_max.dev_attr) < 0
+ || (cursor->id_length >
+ 0 ? device_create_file(bmc->dev,
+ &cursor->attr_label.dev_attr) <
+ 0 : 0)
+ ) {
+ printk(KERN_INFO
+ "ipmisensors: sysfs file creation failed for SDR %d (%s).\n",
+ cursor->number, cursor->id);
+ kfree(cursor->attr_name);
+ kfree(cursor->attr_max_name);
+ kfree(cursor->attr_min_name);
+ kfree(cursor->attr_label_name);
+ return;
+ }
+ }
+
+ bmc->alarms_attr.dev_attr.attr.name = "alarms";
+ bmc->alarms_attr.dev_attr.attr.mode = S_IRUGO;
+ bmc->alarms_attr.dev_attr.attr.owner = THIS_MODULE;
+ bmc->alarms_attr.dev_attr.show = show_alarms;
+ bmc->alarms_attr.dev_attr.store = NULL;
+ bmc->alarms_attr.bmc = bmc;
+
+ if (device_create_file(bmc->dev, &bmc->alarms_attr.dev_attr) < 0) {
+ printk(KERN_INFO
+ "ipmisensors: Failed to create sysfs entry 'alarms'");
+ return;
+ }
+
+ bmc->name_attr.attr.name = "name";
+ bmc->name_attr.attr.mode = S_IRUGO;
+ bmc->name_attr.attr.owner = THIS_MODULE;
+ bmc->name_attr.show = show_name;
+
+ if (device_create_file(bmc->dev, &bmc->name_attr) < 0) {
+ printk(KERN_INFO
+ "ipmisensors: Failed to create sysfs entry 'name'");
+ return;
+ }
+
+ bmc->update_attr.dev_attr.attr.name = "update_period";
+ bmc->update_attr.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
+ bmc->update_attr.dev_attr.attr.owner = THIS_MODULE;
+ bmc->update_attr.dev_attr.show = show_update_period;
+ bmc->update_attr.dev_attr.store = store_update_period;
+ bmc->update_attr.bmc = bmc;
+
+ if (device_create_file(bmc->dev, &bmc->update_attr.dev_attr) < 0) {
+ printk(KERN_INFO
+ "ipmisensors: Failed to create sysfs entry 'update_period'");
+ return;
+ }
+
+ printk(KERN_INFO
+ "ipmisensors: registered %d temp, %d volt, %d current, %d fan sensors\n",
+ temps, volts, currs, fans);
+
+ /* This completes the initialization. We can now kickoff the
+ * periodic update of the bmc sensor's values by scheduling
+ * the first work.
+ */
+ queue_work(ipmisensors_workqueue, &bmc->update_work.work);
+
+}
+
+/**
+ * Process an SDR response message, save the SDRs we like in the sdr
+ * list for the given BMC.
+ *
+ * @bmc: the bmc the message is from
+ * @msg: the IPMI SDR response message
+ */
+static void ipmisensors_rcv_sdr_msg(struct ipmisensors_bmc_data *bmc,
+ struct kernel_ipmi_msg *msg)
+{
+ u16 record;
+ int type;
+ int stype;
+ int id_length;
+ int i;
+ int ipmi_ver = 0;
+ unsigned char *data;
+ u8 id[SDR_MAX_UNPACKED_ID_LENGTH];
+ struct sdrdata *sdr;
+
+ if (msg->data[0] != 0) {
+ /* cut request in half and try again */
+ bmc->ipmi_sdr_partial_size /= 2;
+ if (bmc->ipmi_sdr_partial_size < 8) {
+ printk(KERN_INFO
+ "ipmisensors: IPMI buffers too small, giving up\n");
+ bmc->state = STATE_DONE;
+ return;
+ }
+ printk(KERN_DEBUG
+ "ipmisensors: Reducing SDR request size to %d\n",
+ bmc->ipmi_sdr_partial_size);
+
+ ipmisensors_get_sdr(bmc, 0, 0, 0);
+ bmc->state = STATE_SDR;
+ return;
+ }
+ if (bmc->ipmi_sdr_partial_size < IPMI_SDR_SIZE) {
+ if (bmc->rx_msg_data_offset == 0) {
+ memcpy(bmc->rx_msg_data, msg->data,
+ bmc->ipmi_sdr_partial_size + 3);
+ bmc->rx_msg_data_offset =
+ bmc->ipmi_sdr_partial_size + 3;
+ } else {
+ memcpy(bmc->rx_msg_data + bmc->rx_msg_data_offset,
+ msg->data + 3, bmc->ipmi_sdr_partial_size);
+ bmc->rx_msg_data_offset += bmc->ipmi_sdr_partial_size;
+ }
+ if (bmc->rx_msg_data_offset > bmc->rx_msg_data[7] + 7) {
+ /* got last chunk */
+ bmc->rx_msg_data_offset = 0;
+ data = bmc->rx_msg_data;
+ } else {
+ /* get more */
+ record =
+ (bmc->rx_msg_data[4] << 8) | bmc->rx_msg_data[3];
+ ipmisensors_get_sdr(bmc, bmc->resid, record,
+ bmc->rx_msg_data_offset - 3);
+ bmc->state = STATE_SDR;
+ return;
+ }
+ } else {
+ /* got it in one chunk */
+ data = msg->data;
+ }
+
+ bmc->nextrecord = (data[2] << 8) | data[1];
+
+ /* If the ipmi version is 0.9 we have to remap some things.
+ * Yes this is very ugly, but we aren't the ones who
+ * implemented an incomplete spec!
+ */
+ ipmi_ver = data[5];
+
+ type = data[6];
+ /* known SDR type */
+ if (type == 1 || type == 2) {
+ stype = data[(ipmi_ver == 0x90 ? 16 : 15)];
+ /* known sensor type */
+ if (stype <= STYPE_MAX) {
+ if (data[(ipmi_ver == 0x90 ? 17 : 16)] != 0x01) {
+ if (type == 1)
+ ipmisensors_sprintf(id, &data[51],
+ data[50] >> 6,
+ data[50] & 0x1f);
+ else
+ ipmisensors_sprintf(id,
+ &data[(ipmi_ver ==
+ 0x90 ? 30 :
+ 35)],
+ data[(ipmi_ver ==
+ 0x90 ? 29 :
+ 34)] >> 6,
+ data[(ipmi_ver ==
+ 0x90 ? 29 :
+ 34)] & 0x1f);
+ printk(KERN_INFO
+ "ipmisensors: skipping non-threshold sensor \"%s\"\n",
+ id);
+ } else {
+ /* add entry to sdrd table */
+ sdr = ipmisensors_new_sdr();
+ if (!sdr) {
+ printk(KERN_ERR
+ "ipmisensors: could not allocate memory for new SDR");
+ return;
+ }
+ sdr->bmc = bmc;
+ sdr->stype = stype;
+ sdr->number = data[10];
+ sdr->capab = data[(ipmi_ver == 0x90 ? 15 : 14)];
+ sdr->thresh_mask =
+ (((u16) data[(ipmi_ver == 0x90 ? 21 : 22)])
+ << 8) | data[21];
+ if (type == 1) {
+ sdr->format =
+ data[(ipmi_ver ==
+ 0x90 ? 22 : 24)] >> 6;
+ sdr->linear =
+ data[(ipmi_ver ==
+ 0x90 ? 25 : 26)] & 0x7f;
+ sdr->m =
+ data[(ipmi_ver == 0x90 ? 26 : 27)];
+ sdr->m |= ((u16)
+ (data
+ [(ipmi_ver ==
+ 0x90 ? 27 : 28)]
+ & 0xc0)) << 2;
+ if (sdr->m & 0x0200) {
+ /* sign extend */
+ sdr->m |= 0xfc00;
+ }
+ sdr->b =
+ data[(ipmi_ver == 0x90 ? 28 : 29)];
+ sdr->b |= ((u16)
+ (data
+ [(ipmi_ver ==
+ 0x90 ? 29 : 30)]
+ & 0xc0)) << 2;
+ if (sdr->b & 0x0200) {
+ /* sign extend */
+ sdr->b |= 0xfc00;
+ }
+ sdr->k =
+ data[(ipmi_ver == 0x90 ? 31 : 32)];
+ sdr->nominal =
+ data[(ipmi_ver == 0x90 ? 33 : 34)];
+ for (i = 0; i < SDR_LIMITS; i++) {
+ /* assume readable */
+ sdr->limits[i] =
+ data[(ipmi_ver ==
+ 0x90 ? 40 : 39) + i];
+ }
+ sdr->string_type = data[50] >> 6;
+ id_length = data[50] & 0x1f;
+ memcpy(sdr->id, &data[51], id_length);
+ sdr->id_length = id_length;
+ } else {
+ sdr->m = 1;
+ sdr->b = 0;
+ sdr->k = 0;
+ sdr->string_type =
+ data[(ipmi_ver ==
+ 0x90 ? 29 : 34)] >> 6;
+ id_length = data[34] & 0x1f;
+ if (id_length > 0) {
+ memcpy(sdr->id,
+ &data[(ipmi_ver ==
+ 0x90 ? 30 : 35)],
+ id_length);
+ }
+ sdr->id_length = id_length;
+ /* limits?? */
+ if (ipmi_ver == 0x90) {
+ memcpy(sdr->id,
+ &data[30], id_length);
+ sdr->id_length = id_length;
+ }
+ }
+ ipmisensors_add_sdr(bmc, sdr);
+ }
+ }
+ /* peek at the other SDR types */
+ } else if (type == 0x10 || type == 0x11 || type == 0x12) {
+ ipmisensors_sprintf(id, data + 19, data[18] >> 6,
+ data[18] & 0x1f);
+ if (type == 0x10) {
+ printk(KERN_INFO
+ "ipmisensors: Generic Device acc=0x%x; slv=0x%x; lun=0x%x; type=0x%x; \"%s\"\n",
+ data[8], data[9], data[10], data[13], id);
+ } else if (type == 0x11) {
+ printk(KERN_INFO
+ "ipmisensors: FRU Device acc=0x%x; slv=0x%x; log=0x%x; ch=0x%x; type=0x%x; \"%s\"\n",
+ data[8], data[9], data[10], data[11], data[13],
+ id);
+ } else {
+ printk(KERN_INFO
+ "ipmisensors: Mgmt Ctllr Device slv=0x%x; \"%s\"\n",
+ data[8], id);
+ }
+ } else if (type == 0x14) {
+ printk(KERN_INFO
+ "ipmisensors: Message Channel Info Records:\n");
+ for (i = 0; i < 8; i++) {
+ printk(KERN_INFO "ipmisensors: Channel %d info 0x%x\n",
+ i, data[9 + i]);
+ }
+ } else {
+ printk(KERN_INFO "ipmisensors: Skipping SDR type 0x%x\n", type);
+ }
+ if (ipmi_ver != 0x90) {
+ if (bmc->nextrecord >= 6224) {
+ /*YJ stop sensor scan on poweredge 1750 */
+ bmc->nextrecord = 0xffff;
+ }
+ }
+
+ if (bmc->nextrecord == 0xFFFF) {
+ if (bmc->sdr_count == 0) {
+ printk(KERN_INFO
+ "ipmisensors: No recognized sensors found.\n");
+ bmc->state = STATE_DONE;
+ } else {
+ printk(KERN_INFO "ipmisensors: all sensors detected\n");
+ bmc->state = STATE_SYSTABLE;
+
+ /* Schedule sysfs build/registration work */
+ INIT_WORK(&bmc->sysfs_work, ipmisensors_build_sysfs);
+ queue_work(ipmisensors_workqueue, &bmc->sysfs_work);
+ }
+ } else {
+ ipmisensors_get_sdr(bmc, 0, bmc->nextrecord, 0);
+ bmc->state = STATE_SDR;
+ }
+}
+
+/**
+ * Process incoming messages based on internal state
+ *
+ * @bmc: the bmc the message is from.
+ * @msg: the ipmi message to process.
+ */
+static void ipmisensors_rcv_msg(struct ipmisensors_bmc_data *bmc,
+ struct kernel_ipmi_msg *msg)
+{
+ switch (bmc->state) {
+ case STATE_INIT:
+ case STATE_RESERVE:
+ bmc->resid = (((u16) msg->data[2]) << 8) | msg->data[1];
+
+ printk(KERN_DEBUG "ipmisensors: Got first resid 0x%.4x\n",
+ bmc->resid);
+
+ ipmisensors_get_sdr(bmc, 0, 0, 0);
+ bmc->state = STATE_SDR;
+ break;
+
+ case STATE_SDR:
+ case STATE_SDRPARTIAL:
+ ipmisensors_rcv_sdr_msg(bmc, msg);
+ break;
+
+ case STATE_READING:
+ ipmisensors_rcv_reading_msg(bmc, msg);
+ break;
+
+ case STATE_UNCANCEL:
+ bmc->resid = (((u16) msg->data[2]) << 8) | msg->data[1];
+
+ printk(KERN_DEBUG "ipmisensors: Got new resid 0x%.4x\n",
+ bmc->resid);
+
+ bmc->rx_msg_data_offset = 0;
+ ipmisensors_get_sdr(bmc, 0, bmc->nextrecord, 0);
+ bmc->state = STATE_SDR;
+ break;
+
+ case STATE_DONE:
+ case STATE_SYSTABLE:
+ break;
+ default:
+ bmc->state = STATE_INIT;
+ }
+}
+
+/**
+ * Callback to handle a received IPMI message from a given BMC.
+ *
+ * @msg: the received message.
+ * @handler_data: a pointer to the particular bmc ipmisensors_bmc_data struct.
+ */
+static void ipmisensors_msg_handler(struct ipmi_recv_msg *msg,
+ void *user_msg_data)
+{
+ struct ipmisensors_bmc_data *bmc =
+ (struct ipmisensors_bmc_data *)user_msg_data;
+
+ if (msg->msg.data[0] != 0)
+ printk(KERN_WARNING
+ "ipmisensors: Error 0x%x on cmd 0x%x/0x%x\n",
+ msg->msg.data[0], msg->msg.netfn, msg->msg.cmd);
+
+ if (bmc != NULL && ipmisensors_intf_registered(bmc->interface_id)) {
+ if (bmc->state == STATE_SDR &&
+ msg->msg.data[0] == IPMI_INVALID_RESERVATION_ID) {
+ /* reservation cancelled, get new resid */
+ if (++bmc->errorcount > 275) {
+ printk(KERN_ERR
+ "ipmisensors: Too many reservations cancelled, giving up\n");
+ bmc->state = STATE_DONE;
+ } else {
+ printk(KERN_DEBUG
+ "ipmisensors: resid 0x%04x cancelled, getting new one\n",
+ bmc->resid);
+
+ ipmisensors_reserve_sdr(bmc);
+ bmc->state = STATE_UNCANCEL;
+ }
+ } else if (msg->msg.data[0] != IPMI_CC_NO_ERROR &&
+ msg->msg.data[0] != IPMI_ERR_RETURNING_REQ_BYTES &&
+ msg->msg.data[0] != IPMI_ERR_PROVIDING_RESPONSE) {
+ printk(KERN_ERR
+ "ipmisensors: Error 0x%x on cmd 0x%x/0x%x; state = %d; probably fatal.\n",
+ msg->msg.data[0], msg->msg.netfn & 0xfe,
+ msg->msg.cmd, bmc->state);
+ } else {
+ printk(KERN_DEBUG "ipmisensors: received message\n");
+ ipmisensors_rcv_msg(bmc, &msg->msg);
+ }
+
+ } else {
+ printk(KERN_WARNING
+ "ipmisensors: Response for non-registered BMC\n");
+ if (bmc != NULL)
+ printk(KERN_DEBUG "ipmisensors: BMC ID: %d\n",
+ bmc->interface_id);
+ else
+ printk(KERN_DEBUG "ipmisensors: BMC NULL!\n");
+ }
+
+ ipmi_free_recv_msg(msg);
+}
+
+/****** IPMI Interface Initialization ******/
+
+/**
+ * Return true if the given ipmi interface has been registered.
+ *
+ * @ipmi_intf: The IPMI interface number.
+ */
+static int ipmisensors_intf_registered(int ipmi_intf)
+{
+ int found = 0;
+ struct ipmisensors_bmc_data *cursor, *next;
+
+ /* find and free the ipmisensors_bmc_data struct */
+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
+ if (cursor->interface_id == ipmi_intf) {
+ found++;
+ }
+ }
+
+ return found;
+}
+
+/**
+ * Return true if the given BMC has been registered.
+ *
+ * @bmc: The BMC device.
+ */
+static int ipmisensors_bmc_registered(struct device *bmc)
+{
+ int found = 0;
+ struct ipmisensors_bmc_data *cursor, *next;
+
+ /* find and free the ipmisensors_bmc_data struct */
+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
+ if (cursor->dev == bmc) {
+ found++;
+ }
+ }
+
+ return found;
+}
+
+/**
+ * Register new IPMI BMC interface. Interface indpendent callback created
+ * for flexibility in adding new types of interface callbacks in future.
+ *
+ * @ipmi_intf: The IPMI interface number.
+ */
+static void ipmisensors_register_bmc(int ipmi_intf, struct ipmi_addr *address)
+{
+ int error;
+
+ /* allocate a new ipmisensors_bmc_data struct */
+
+ struct ipmisensors_bmc_data *bmc = (struct ipmisensors_bmc_data *)
+ kmalloc(sizeof(struct ipmisensors_bmc_data), GFP_KERNEL);
+
+ /* initialize members */
+ INIT_LIST_HEAD(&bmc->sdrs);
+ bmc->interface_id = ipmi_intf;
+
+ bmc->address = *address;
+
+ bmc->sdr_count = 0;
+ bmc->msgid = 0;
+ bmc->ipmi_sdr_partial_size = IPMI_CHUNK_SIZE;
+ bmc->state = STATE_INIT;
+ bmc->errorcount = 0;
+ bmc->rx_msg_data_offset = 0;
+ bmc->dev = ipmi_get_bmcdevice(ipmi_intf);
+
+ /* default to 3 second min update interval */
+ bmc->update_period = 3;
+
+ if (bmc->dev == NULL) {
+ printk(KERN_ERR
+ "ipmisensors: Error, couldn't get BMC device for interface %d\n",
+ bmc->interface_id);
+ kfree(bmc);
+ return;
+ }
+
+ /* Create IPMI messaging interface user */
+ error = ipmi_create_user(bmc->interface_id, &driver_data.ipmi_hndlrs,
+ bmc, &bmc->user);
+ if (error < 0) {
+ printk(KERN_ERR
+ "ipmisensors: Error, unable to register user with ipmi interface %d\n",
+ bmc->interface_id);
+ kfree(bmc);
+ return;
+ }
+
+ /* Register the BMC as a HWMON class device */
+ bmc->class_dev = hwmon_device_register(bmc->dev);
+
+ if (IS_ERR(bmc->class_dev)) {
+ printk(KERN_ERR
+ "ipmisensors: Error, unable to register hwmon class device for interface %d\n",
+ bmc->interface_id);
+ kfree(bmc);
+ return;
+ }
+
+ /* Register the BMC in the driver */
+ if (ipmisensors_bmc_registered(bmc->dev)) {
+ printk(KERN_ERR
+ "ipmisensors: BMC on interface %d already registered\n",
+ bmc->interface_id);
+ hwmon_device_unregister(bmc->class_dev);
+ kfree(bmc);
+ return;
+ }
+
+ ipmi_get_version(bmc->user, &bmc->ipmi_version_major,
+ &bmc->ipmi_version_minor);
+
+ /* finally add the new bmc data to the bmc data list */
+ list_add_tail(&bmc->list, &driver_data.bmc_data);
+ driver_data.interfaces++;
+
+ printk(KERN_INFO
+ "ipmisensors: Registered IPMI %d.%d BMC over interface %d\n",
+ bmc->ipmi_version_major,
+ bmc->ipmi_version_minor, bmc->interface_id);
+
+ /* Send a reserve SDR command to the bmc */
+ ipmisensors_reserve_sdr(bmc);
+
+ /* initialize the bmc's update work struct */
+ INIT_DELAYED_WORK(&bmc->update_work, ipmisensors_update_bmc);
+}
+
+/**
+ * Callback for when an IPMI BMC is gone. Interface indpendent callback created
+ * for flexibility in adding new types of interface callbacks in future.
+ *
+ * @ipmi_intf: The IPMI interface number.
+ */
+static void ipmisensors_unregister_bmc(int ipmi_intf)
+{
+ struct ipmisensors_bmc_data *cursor, *next;
+
+ /* find and free the ipmisensors_bmc_data struct */
+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
+ if (cursor->interface_id == ipmi_intf) {
+ list_del(&cursor->list);
+ printk(KERN_DEBUG
+ "ipmisensors: cancelling queued work\n");
+ /* cancel update work queued for this bmc */
+ cancel_delayed_work(&cursor->update_work);
+ printk(KERN_DEBUG
+ "ipmisensors: waiting for update to finish\n");
+ /* wait for readings to finish */
+ while (cursor->state != STATE_DONE) ;
+
+ device_remove_file(cursor->dev,
+ &cursor->alarms_attr.dev_attr);
+ device_remove_file(cursor->dev,
+ &cursor->update_attr.dev_attr);
+ hwmon_device_unregister(cursor->class_dev);
+ ipmisensors_sdr_cleanup(cursor);
+ ipmi_destroy_user(cursor->user);
+
+ printk(KERN_INFO
+ "ipmisensors: Unegistered IPMI interface %d\n",
+ cursor->interface_id);
+
+ kfree(cursor);
+ driver_data.interfaces--;
+ }
+ }
+
+}
+
+/**
+ * Unregister all registered bmcs.
+ */
+static void ipmisensors_unregister_bmc_all(void)
+{
+ struct ipmisensors_bmc_data *cursor, *next;
+
+ /* find and free the ipmisensors_bmc_data struct */
+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
+ list_del(&cursor->list);
+
+ /* cancel update work queued for this bmc */
+ printk(KERN_DEBUG "ipmisensors: cancelling queued work\n");
+ cancel_delayed_work(&cursor->update_work);
+
+ printk(KERN_DEBUG
+ "ipmisensors: waiting for update to finish\n");
+ /* wait for readings to finish */
+ while (cursor->state != STATE_DONE) ;
+
+ device_remove_file(cursor->dev, &cursor->alarms_attr.dev_attr);
+ device_remove_file(cursor->dev, &cursor->update_attr.dev_attr);
+ hwmon_device_unregister(cursor->class_dev);
+ ipmisensors_sdr_cleanup(cursor);
+ ipmi_destroy_user(cursor->user);
+
+ printk(KERN_INFO
+ "ipmisensors: Unegistered IPMI interface %d\n",
+ cursor->interface_id);
+
+ kfree(cursor);
+ }
+
+ driver_data.interfaces = 0;
+}
+
+/**
+ * Callback for when a new IPMI SMI type interface is found.
+ *
+ * @if_num: The IPMI interface number.
+ */
+static void ipmisensors_new_smi(int if_num, struct device *dev)
+{
+ struct ipmi_addr smi_address = {
+ IPMI_SYSTEM_INTERFACE_ADDR_TYPE,
+ IPMI_BMC_CHANNEL,
+ {0},
+ };
+
+ /* calls the generic new interface function */
+ ipmisensors_register_bmc(if_num, &smi_address);
+}
+
+/**
+ * Callback for when an exisiting IPMI SMI type interface is gone.
+ *
+ * @if_num: The IPMI interface number.
+ */
+static void ipmisensors_smi_gone(int if_num)
+{
+ if (driver_data.interfaces > 0) {
+ ipmisensors_unregister_bmc(if_num);
+ }
+}
+
+/**
+ * Initialize the module.
+ */
+static int __init ipmisensors_init(void)
+{
+ int error;
+ printk(KERN_INFO "ipmisensors - IPMI BMC sensors interface\n");
+
+ /* init cache managers */
+ driver_data.sdrdata_cache =
+ kmem_cache_create("ipmisensors_sdrdata", sizeof(struct sdrdata), 0,
+ 0, NULL, NULL);
+ driver_data.sysfsattr_cache =
+ kmem_cache_create("ipmisensors_sysfsattr",
+ sizeof(struct ipmisensors_device_attribute), 0, 0,
+ NULL, NULL);
+
+ if (!driver_data.sdrdata_cache || !driver_data.sysfsattr_cache) {
+ if (driver_data.sdrdata_cache)
+ kmem_cache_destroy(driver_data.sdrdata_cache);
+ if (driver_data.sysfsattr_cache)
+ kmem_cache_destroy(driver_data.sysfsattr_cache);
+ return -ENOMEM;
+ }
+
+ /* register IPMI interface callback(s) */
+ error = ipmi_smi_watcher_register(&driver_data.smi_watcher);
+ if (error) {
+ printk(KERN_WARNING
+ "ipmisensors: can't register smi watcher\n");
+ return error;
+ }
+
+ /* create work queue, keep it simple, single-threaded */
+ ipmisensors_workqueue =
+ create_singlethread_workqueue("ipmisensors_workqueue");
+
+ return 0;
+}
+
+/**
+ * Cleanup
+ */
+static void ipmisensors_cleanup(void)
+{
+ /* start cleanup */
+ cleanup = 1;
+
+ /* unregister bmcs */
+ printk(KERN_DEBUG "ipmisensors: unregister bmcs\n");
+ ipmi_smi_watcher_unregister(&driver_data.smi_watcher);
+ ipmisensors_unregister_bmc_all();
+
+ /* flush & destroy work queue */
+ printk(KERN_DEBUG "ipmisensors: destroy workqueue\n");
+ flush_workqueue(ipmisensors_workqueue);
+ destroy_workqueue(ipmisensors_workqueue);
+
+ /* remove cache managers */
+ if (driver_data.sdrdata_cache)
+ kmem_cache_destroy(driver_data.sdrdata_cache);
+ if (driver_data.sysfsattr_cache)
+ kmem_cache_destroy(driver_data.sysfsattr_cache);
+}
+
+/**
+ * Cleanup and exit the module
+ */
+static void __exit ipmisensors_exit(void)
+{
+ ipmisensors_cleanup();
+ printk(KERN_DEBUG "ipmisensors: cleanup finished\n");
+}
+
+MODULE_AUTHOR("Yani Ioannou <yani.ioannou@gmail.com>");
+MODULE_DESCRIPTION("IPMI BMC sensors");
+MODULE_LICENSE("GPL");
+
+module_init(ipmisensors_init);
+module_exit(ipmisensors_exit);
diff -rduNp linux-2.6.20.3.orig/drivers/hwmon/ipmisensors.h linux-2.6.20.3/drivers/hwmon/ipmisensors.h
--- linux-2.6.20.3.orig/drivers/hwmon/ipmisensors.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.3/drivers/hwmon/ipmisensors.h 2007-03-14 14:41:23.000000000 +0100
@@ -0,0 +1,240 @@
+/*
+ * ipmisensors.h - lm_sensors interface to IPMI sensors.
+ *
+ * Copyright (C) 2004-2006 Yani Ioannou <yani.ioannou@gmail.com>
+ *
+ * Adapted from bmcsensors (lm-sensors for linux 2.4)
+ * bmcsensors (C) Mark D. Studebaker <mdsxyz123@yahoo.com>
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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/ipmi.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+
+/* SDR defs */
+#define STYPE_TEMP 0x01
+#define STYPE_VOLT 0x02
+#define STYPE_CURR 0x03
+#define STYPE_FAN 0x04
+
+#define SDR_LIMITS 8
+#define SDR_MAX_ID_LENGTH 16
+#define SDR_MAX_UNPACKED_ID_LENGTH ((SDR_MAX_ID_LENGTH * 4 / 3) + 2)
+
+/* the last sensor type we are interested in */
+#define STYPE_MAX 4
+
+#define IPMI_SDR_SIZE 67
+#define IPMI_CHUNK_SIZE 16
+
+#define MAX_FILENAME_LENGTH 30
+
+struct ipmisensors_device_attribute {
+ struct device_attribute dev_attr;
+ struct sdrdata *sdr;
+};
+#define to_ipmisensors_dev_attr(_dev_attr) \
+ container_of(_dev_attr, struct ipmisensors_device_attribute, dev_attr)
+
+#define IPMISENSORS_DEVICE_ATTR(_name,_mode,_show,_store,_index) \
+struct ipmisensors_attribute sensor_dev_attr_##_name = { \
+ .dev_attr = __ATTR(_name,_mode,_show,_store), \
+ .index = _index, \
+}
+
+struct ipmisensors_bmc_device_attribute {
+ struct device_attribute dev_attr;
+ struct ipmisensors_bmc_data *bmc;
+};
+#define to_ipmisensors_bmc_dev_attr(_dev_attr) \
+ container_of(_dev_attr, struct ipmisensors_bmc_device_attribute, dev_attr)
+
+/**
+ * &struct_sdrdata stores the IPMI Sensor Data Record (SDR) data, as recieved from the BMC, along with the corresponding sysfs attributes
+ */
+struct sdrdata {
+ struct list_head list;
+ /* retrieved from SDR, not expected to change */
+ /* Sensor Type Code */
+ u8 stype;
+ u8 number;
+ /* Sensor Capability Code */
+ u8 capab;
+ u16 thresh_mask;
+ u8 format;
+ u8 linear;
+ s16 m;
+ s16 b;
+ u8 k;
+ u8 nominal;
+ u8 limits[SDR_LIMITS];
+ /* index into limits for reported upper and lower limit */
+ int lim1, lim2;
+ u8 lim1_write, lim2_write;
+ u8 string_type;
+ u8 id_length;
+ u8 id[SDR_MAX_ID_LENGTH];
+ /* retrieved from reading */
+ u8 reading;
+ u8 status;
+ u8 thresholds;
+ /* sensor's bmc */
+ struct ipmisensors_bmc_data *bmc;
+ /* sysfs entries */
+ struct ipmisensors_device_attribute attr;
+ char *attr_name;
+ struct ipmisensors_device_attribute attr_min;
+ char *attr_min_name;
+ struct ipmisensors_device_attribute attr_max;
+ char *attr_max_name;
+ struct ipmisensors_device_attribute attr_label;
+ char *attr_label_name;
+
+};
+
+/**
+ * &struct_ipmisensors_data stores the data for the ipmisensors driver.
+ */
+struct ipmisensors_data {
+ /* Driver struct */
+ char *driver_name;
+
+ /* Linked list of ipmisensors_bmc_data structs, one for each BMC */
+ struct list_head bmc_data;
+
+ /* Number of ipmi interfaces (and hence ipmisensors_data structs). */
+ int interfaces;
+
+ /* IPMI kernel interface - SMI watcher */
+ struct ipmi_smi_watcher smi_watcher;
+
+ /* IPMI kernel interface - user handlers */
+ struct ipmi_user_hndl ipmi_hndlrs;
+
+ /* Cache manager for sdrdata cache */
+ struct kmem_cache *sdrdata_cache;
+
+ /* Cache manager for ipmi_sensor_device_attribute cache */
+ struct kmem_cache *sysfsattr_cache;
+};
+
+/**
+ * &states: enumeration of state codes for a bmc specific ipmisensors
+ */
+enum states {
+ STATE_INIT,
+ STATE_RESERVE,
+ STATE_SDR,
+ STATE_SDRPARTIAL,
+ STATE_READING,
+ STATE_UNCANCEL,
+ STATE_SYSTABLE,
+ STATE_DONE
+};
+
+/**
+ * &struct_ipmisensors_bmc_data stores the data for a particular IPMI BMC.
+ */
+struct ipmisensors_bmc_data {
+ struct list_head list;
+
+ /* The IPMI interface number */
+ int interface_id;
+
+ /* The IPMI address */
+ struct ipmi_addr address;
+
+ /* List of sdrdata structs (sdrs) recieved from the BMC */
+ struct list_head sdrs;
+
+ /* Count of the number of sdrs stored in the sdr list */
+ int sdr_count;
+
+ /* next message id */
+ int msgid;
+
+ /* The ipmi interface 'user' used to access this particular bmc */
+ ipmi_user_t user;
+
+ /* BMC IPMI Version (major) */
+ unsigned char ipmi_version_major;
+
+ /* BMC IPMI Version (minor) */
+ unsigned char ipmi_version_minor;
+
+ /* The size of the SDR request message */
+ int ipmi_sdr_partial_size;
+
+ /* transmit message buffer */
+ struct kernel_ipmi_msg tx_message;
+
+ /* ipmi transmited data buffer */
+ unsigned char tx_msg_data[IPMI_MAX_MSG_LENGTH + 50]; /* why the +50 in bmcsensors? */
+
+ /* ipmi recieved data buffer */
+ unsigned char rx_msg_data[IPMI_MAX_MSG_LENGTH + 50];
+
+ /* current recieve buffer offset */
+ int rx_msg_data_offset;
+
+ /* The id of then next SDR record to read during update cycle */
+ u16 nextrecord;
+
+ /* BMC SDR Reservation ID */
+ u16 resid;
+
+ /* Alarm status */
+ u8 alarms;
+
+ /* The cumalative error count for this bmc */
+ int errorcount;
+
+ /* The current state of this bmc w.r.t. ipmisensors (see enum states) */
+ int state;
+
+ /* The current sdr for which a reading is pending */
+ struct sdrdata *current_sdr;
+
+ /* The BMC's device struct */
+ struct device *dev;
+
+ /* hwmon class device */
+ struct class_device *class_dev;
+
+ /* hwmon device name */
+ struct device_attribute name_attr;
+
+ /* alarms attribute */
+ struct ipmisensors_bmc_device_attribute alarms_attr;
+
+ /* update_period attribute */
+ struct ipmisensors_bmc_device_attribute update_attr;
+
+ /* lower bound on time between updates (in seconds) */
+ unsigned int update_period;
+
+ /* semaphore used to do a headcount of the SDR readings we are waiting
+ * on in a given bmc update */
+ struct semaphore update_semaphore;
+
+ /* bmc's work struct for updating sensors */
+ struct delayed_work update_work;
+
+ /* bmc's work struct for building the sysfs workqueue */
+ struct work_struct sysfs_work;
+};
diff -rduNp linux-2.6.20.3.orig/include/linux/ipmi.h linux-2.6.20.3/include/linux/ipmi.h
--- linux-2.6.20.3.orig/include/linux/ipmi.h 2007-03-13 19:27:08.000000000 +0100
+++ linux-2.6.20.3/include/linux/ipmi.h 2007-03-14 14:23:02.000000000 +0100
@@ -300,6 +300,9 @@ int ipmi_create_user(unsigned int
safe, too. */
int ipmi_destroy_user(ipmi_user_t user);
+/* Get the IPMI BMC's device struct */
+struct device *ipmi_get_bmcdevice(int ipmi_intf);
+
/* Get the IPMI version of the BMC we are talking to. */
void ipmi_get_version(ipmi_user_t user,
unsigned char *major,
diff -rduNp linux-2.6.20.3.orig/include/linux/ipmi_msgdefs.h linux-2.6.20.3/include/linux/ipmi_msgdefs.h
--- linux-2.6.20.3.orig/include/linux/ipmi_msgdefs.h 2007-03-13 19:27:08.000000000 +0100
+++ linux-2.6.20.3/include/linux/ipmi_msgdefs.h 2007-03-14 14:23:02.000000000 +0100
@@ -45,6 +45,7 @@
#define IPMI_NETFN_APP_REQUEST 0x06
#define IPMI_NETFN_APP_RESPONSE 0x07
+#define IPMI_GET_DEVICE_GUID_CMD 0x08
#define IPMI_GET_DEVICE_ID_CMD 0x01
#define IPMI_COLD_RESET_CMD 0x02
#define IPMI_WARM_RESET_CMD 0x03
@@ -57,6 +58,11 @@
#define IPMI_GET_BMC_GLOBAL_ENABLES_CMD 0x2f
#define IPMI_READ_EVENT_MSG_BUFFER_CMD 0x35
#define IPMI_GET_CHANNEL_INFO_CMD 0x42
+#define IPMI_RESERVE_SDR 0x22
+#define IPMI_GET_SDR 0x23
+#define IPMI_GET_SENSOR_STATE_READING 0x2D
+#define IPMI_SET_SENSOR_HYSTERESIS 0x24
+#define IPMI_SET_SENSOR_THRESHOLD 0x26
#define IPMI_NETFN_STORAGE_REQUEST 0x0a
#define IPMI_NETFN_STORAGE_RESPONSE 0x0b
@@ -79,10 +85,13 @@
#define IPMI_NODE_BUSY_ERR 0xc0
#define IPMI_INVALID_COMMAND_ERR 0xc1
#define IPMI_TIMEOUT_ERR 0xc3
+#define IPMI_INVALID_RESERVATION_ID 0xc5
#define IPMI_ERR_MSG_TRUNCATED 0xc6
#define IPMI_REQ_LEN_INVALID_ERR 0xc7
#define IPMI_REQ_LEN_EXCEEDED_ERR 0xc8
#define IPMI_NOT_IN_MY_STATE_ERR 0xd5 /* IPMI 2.0 */
+#define IPMI_ERR_RETURNING_REQ_BYTES 0xca
+#define IPMI_ERR_PROVIDING_RESPONSE 0xce
#define IPMI_LOST_ARBITRATION_ERR 0x81
#define IPMI_BUS_ERR 0x82
#define IPMI_NAK_ON_WRITE_ERR 0x83
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