| diff -rduNp linux-2.6.22.1.oorig2/drivers/char/ipmi/ipmi_msghandler.c linux-2.6.22.1/drivers/char/ipmi/ipmi_msghandler.c |
| --- linux-2.6.22.1.oorig2/drivers/char/ipmi/ipmi_msghandler.c 2007-07-10 20:56:30.000000000 +0200 |
| +++ linux-2.6.22.1/drivers/char/ipmi/ipmi_msghandler.c 2007-07-24 14:22:26.000000000 +0200 |
| @@ -1953,6 +1953,24 @@ 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; |
| @@ -4196,3 +4214,4 @@ 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-2.6.22.1.oorig2/drivers/hwmon/Kconfig linux-2.6.22.1/drivers/hwmon/Kconfig |
| --- linux-2.6.22.1.oorig2/drivers/hwmon/Kconfig 2007-07-10 20:56:30.000000000 +0200 |
| +++ linux-2.6.22.1/drivers/hwmon/Kconfig 2007-07-24 14:22:26.000000000 +0200 |
| @@ -248,6 +248,16 @@ config SENSORS_CORETEMP |
| sensor inside your CPU. Supported all are all known variants |
| of Intel Core family. |
| |
| +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 I2C |
| diff -rduNp linux-2.6.22.1.oorig2/drivers/hwmon/Makefile linux-2.6.22.1/drivers/hwmon/Makefile |
| --- linux-2.6.22.1.oorig2/drivers/hwmon/Makefile 2007-07-10 20:56:30.000000000 +0200 |
| +++ linux-2.6.22.1/drivers/hwmon/Makefile 2007-07-24 14:22:26.000000000 +0200 |
| @@ -32,6 +32,7 @@ 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-2.6.22.1.oorig2/drivers/hwmon/ipmisensors.c linux-2.6.22.1/drivers/hwmon/ipmisensors.c |
| --- linux-2.6.22.1.oorig2/drivers/hwmon/ipmisensors.c 1970-01-01 01:00:00.000000000 +0100 |
| +++ linux-2.6.22.1/drivers/hwmon/ipmisensors.c 2007-07-24 14:22:26.000000000 +0200 |
| @@ -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-2.6.22.1.oorig2/drivers/hwmon/ipmisensors.h linux-2.6.22.1/drivers/hwmon/ipmisensors.h |
| --- linux-2.6.22.1.oorig2/drivers/hwmon/ipmisensors.h 1970-01-01 01:00:00.000000000 +0100 |
| +++ linux-2.6.22.1/drivers/hwmon/ipmisensors.h 2007-07-24 14:22:26.000000000 +0200 |
| @@ -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-2.6.22.1.oorig2/include/linux/ipmi.h linux-2.6.22.1/include/linux/ipmi.h |
| --- linux-2.6.22.1.oorig2/include/linux/ipmi.h 2007-07-10 20:56:30.000000000 +0200 |
| +++ linux-2.6.22.1/include/linux/ipmi.h 2007-07-24 14:22:26.000000000 +0200 |
| @@ -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-2.6.22.1.oorig2/include/linux/ipmi_msgdefs.h linux-2.6.22.1/include/linux/ipmi_msgdefs.h |
| --- linux-2.6.22.1.oorig2/include/linux/ipmi_msgdefs.h 2007-07-10 20:56:30.000000000 +0200 |
| +++ linux-2.6.22.1/include/linux/ipmi_msgdefs.h 2007-07-24 14:22:26.000000000 +0200 |
| @@ -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 |