diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/net/ethernet/sfc/mcdi_mon.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/net/ethernet/sfc/mcdi_mon.c | 415 |
1 files changed, 0 insertions, 415 deletions
diff --git a/ANDROID_3.4.5/drivers/net/ethernet/sfc/mcdi_mon.c b/ANDROID_3.4.5/drivers/net/ethernet/sfc/mcdi_mon.c deleted file mode 100644 index fb7f65b5..00000000 --- a/ANDROID_3.4.5/drivers/net/ethernet/sfc/mcdi_mon.c +++ /dev/null @@ -1,415 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare Solarstorm network controllers and boards - * Copyright 2011 Solarflare Communications Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - */ - -#include <linux/bitops.h> -#include <linux/slab.h> -#include <linux/hwmon.h> -#include <linux/stat.h> - -#include "net_driver.h" -#include "mcdi.h" -#include "mcdi_pcol.h" -#include "nic.h" - -enum efx_hwmon_type { - EFX_HWMON_UNKNOWN, - EFX_HWMON_TEMP, /* temperature */ - EFX_HWMON_COOL, /* cooling device, probably a heatsink */ - EFX_HWMON_IN /* input voltage */ -}; - -static const struct { - const char *label; - enum efx_hwmon_type hwmon_type; - int port; -} efx_mcdi_sensor_type[MC_CMD_SENSOR_ENTRY_MAXNUM] = { -#define SENSOR(name, label, hwmon_type, port) \ - [MC_CMD_SENSOR_##name] = { label, hwmon_type, port } - SENSOR(CONTROLLER_TEMP, "Controller temp.", EFX_HWMON_TEMP, -1), - SENSOR(PHY_COMMON_TEMP, "PHY temp.", EFX_HWMON_TEMP, -1), - SENSOR(CONTROLLER_COOLING, "Controller cooling", EFX_HWMON_COOL, -1), - SENSOR(PHY0_TEMP, "PHY temp.", EFX_HWMON_TEMP, 0), - SENSOR(PHY0_COOLING, "PHY cooling", EFX_HWMON_COOL, 0), - SENSOR(PHY1_TEMP, "PHY temp.", EFX_HWMON_TEMP, 1), - SENSOR(PHY1_COOLING, "PHY cooling", EFX_HWMON_COOL, 1), - SENSOR(IN_1V0, "1.0V supply", EFX_HWMON_IN, -1), - SENSOR(IN_1V2, "1.2V supply", EFX_HWMON_IN, -1), - SENSOR(IN_1V8, "1.8V supply", EFX_HWMON_IN, -1), - SENSOR(IN_2V5, "2.5V supply", EFX_HWMON_IN, -1), - SENSOR(IN_3V3, "3.3V supply", EFX_HWMON_IN, -1), - SENSOR(IN_12V0, "12.0V supply", EFX_HWMON_IN, -1), - SENSOR(IN_1V2A, "1.2V analogue supply", EFX_HWMON_IN, -1), - SENSOR(IN_VREF, "ref. voltage", EFX_HWMON_IN, -1), -#undef SENSOR -}; - -static const char *const sensor_status_names[] = { - [MC_CMD_SENSOR_STATE_OK] = "OK", - [MC_CMD_SENSOR_STATE_WARNING] = "Warning", - [MC_CMD_SENSOR_STATE_FATAL] = "Fatal", - [MC_CMD_SENSOR_STATE_BROKEN] = "Device failure", -}; - -void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev) -{ - unsigned int type, state, value; - const char *name = NULL, *state_txt; - - type = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_MONITOR); - state = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_STATE); - value = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_VALUE); - - /* Deal gracefully with the board having more drivers than we - * know about, but do not expect new sensor states. */ - if (type < ARRAY_SIZE(efx_mcdi_sensor_type)) - name = efx_mcdi_sensor_type[type].label; - if (!name) - name = "No sensor name available"; - EFX_BUG_ON_PARANOID(state >= ARRAY_SIZE(sensor_status_names)); - state_txt = sensor_status_names[state]; - - netif_err(efx, hw, efx->net_dev, - "Sensor %d (%s) reports condition '%s' for raw value %d\n", - type, name, state_txt, value); -} - -#ifdef CONFIG_SFC_MCDI_MON - -struct efx_mcdi_mon_attribute { - struct device_attribute dev_attr; - unsigned int index; - unsigned int type; - unsigned int limit_value; - char name[12]; -}; - -static int efx_mcdi_mon_update(struct efx_nic *efx) -{ - struct efx_mcdi_mon *hwmon = efx_mcdi_mon(efx); - u8 inbuf[MC_CMD_READ_SENSORS_IN_LEN]; - int rc; - - MCDI_SET_DWORD(inbuf, READ_SENSORS_IN_DMA_ADDR_LO, - hwmon->dma_buf.dma_addr & 0xffffffff); - MCDI_SET_DWORD(inbuf, READ_SENSORS_IN_DMA_ADDR_HI, - (u64)hwmon->dma_buf.dma_addr >> 32); - - rc = efx_mcdi_rpc(efx, MC_CMD_READ_SENSORS, - inbuf, sizeof(inbuf), NULL, 0, NULL); - if (rc == 0) - hwmon->last_update = jiffies; - return rc; -} - -static ssize_t efx_mcdi_mon_show_name(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - return sprintf(buf, "%s\n", KBUILD_MODNAME); -} - -static int efx_mcdi_mon_get_entry(struct device *dev, unsigned int index, - efx_dword_t *entry) -{ - struct efx_nic *efx = dev_get_drvdata(dev); - struct efx_mcdi_mon *hwmon = efx_mcdi_mon(efx); - int rc; - - BUILD_BUG_ON(MC_CMD_READ_SENSORS_OUT_LEN != 0); - - mutex_lock(&hwmon->update_lock); - - /* Use cached value if last update was < 1 s ago */ - if (time_before(jiffies, hwmon->last_update + HZ)) - rc = 0; - else - rc = efx_mcdi_mon_update(efx); - - /* Copy out the requested entry */ - *entry = ((efx_dword_t *)hwmon->dma_buf.addr)[index]; - - mutex_unlock(&hwmon->update_lock); - - return rc; -} - -static ssize_t efx_mcdi_mon_show_value(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct efx_mcdi_mon_attribute *mon_attr = - container_of(attr, struct efx_mcdi_mon_attribute, dev_attr); - efx_dword_t entry; - unsigned int value; - int rc; - - rc = efx_mcdi_mon_get_entry(dev, mon_attr->index, &entry); - if (rc) - return rc; - - value = EFX_DWORD_FIELD(entry, MC_CMD_SENSOR_VALUE_ENTRY_TYPEDEF_VALUE); - - /* Convert temperature from degrees to milli-degrees Celsius */ - if (efx_mcdi_sensor_type[mon_attr->type].hwmon_type == EFX_HWMON_TEMP) - value *= 1000; - - return sprintf(buf, "%u\n", value); -} - -static ssize_t efx_mcdi_mon_show_limit(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct efx_mcdi_mon_attribute *mon_attr = - container_of(attr, struct efx_mcdi_mon_attribute, dev_attr); - unsigned int value; - - value = mon_attr->limit_value; - - /* Convert temperature from degrees to milli-degrees Celsius */ - if (efx_mcdi_sensor_type[mon_attr->type].hwmon_type == EFX_HWMON_TEMP) - value *= 1000; - - return sprintf(buf, "%u\n", value); -} - -static ssize_t efx_mcdi_mon_show_alarm(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct efx_mcdi_mon_attribute *mon_attr = - container_of(attr, struct efx_mcdi_mon_attribute, dev_attr); - efx_dword_t entry; - int state; - int rc; - - rc = efx_mcdi_mon_get_entry(dev, mon_attr->index, &entry); - if (rc) - return rc; - - state = EFX_DWORD_FIELD(entry, MC_CMD_SENSOR_VALUE_ENTRY_TYPEDEF_STATE); - return sprintf(buf, "%d\n", state != MC_CMD_SENSOR_STATE_OK); -} - -static ssize_t efx_mcdi_mon_show_label(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct efx_mcdi_mon_attribute *mon_attr = - container_of(attr, struct efx_mcdi_mon_attribute, dev_attr); - return sprintf(buf, "%s\n", - efx_mcdi_sensor_type[mon_attr->type].label); -} - -static int -efx_mcdi_mon_add_attr(struct efx_nic *efx, const char *name, - ssize_t (*reader)(struct device *, - struct device_attribute *, char *), - unsigned int index, unsigned int type, - unsigned int limit_value) -{ - struct efx_mcdi_mon *hwmon = efx_mcdi_mon(efx); - struct efx_mcdi_mon_attribute *attr = &hwmon->attrs[hwmon->n_attrs]; - int rc; - - strlcpy(attr->name, name, sizeof(attr->name)); - attr->index = index; - attr->type = type; - attr->limit_value = limit_value; - attr->dev_attr.attr.name = attr->name; - attr->dev_attr.attr.mode = S_IRUGO; - attr->dev_attr.show = reader; - rc = device_create_file(&efx->pci_dev->dev, &attr->dev_attr); - if (rc == 0) - ++hwmon->n_attrs; - return rc; -} - -int efx_mcdi_mon_probe(struct efx_nic *efx) -{ - struct efx_mcdi_mon *hwmon = efx_mcdi_mon(efx); - unsigned int n_attrs, n_temp = 0, n_cool = 0, n_in = 0; - u8 outbuf[MC_CMD_SENSOR_INFO_OUT_LENMAX]; - size_t outlen; - char name[12]; - u32 mask; - int rc, i, type; - - BUILD_BUG_ON(MC_CMD_SENSOR_INFO_IN_LEN != 0); - - rc = efx_mcdi_rpc(efx, MC_CMD_SENSOR_INFO, NULL, 0, - outbuf, sizeof(outbuf), &outlen); - if (rc) - return rc; - if (outlen < MC_CMD_SENSOR_INFO_OUT_LENMIN) - return -EIO; - - /* Find out which sensors are present. Don't create a device - * if there are none. - */ - mask = MCDI_DWORD(outbuf, SENSOR_INFO_OUT_MASK); - if (mask == 0) - return 0; - - /* Check again for short response */ - if (outlen < MC_CMD_SENSOR_INFO_OUT_LEN(hweight32(mask))) - return -EIO; - - rc = efx_nic_alloc_buffer(efx, &hwmon->dma_buf, - 4 * MC_CMD_SENSOR_ENTRY_MAXNUM); - if (rc) - return rc; - - mutex_init(&hwmon->update_lock); - efx_mcdi_mon_update(efx); - - /* Allocate space for the maximum possible number of - * attributes for this set of sensors: name of the driver plus - * value, min, max, crit, alarm and label for each sensor. - */ - n_attrs = 1 + 6 * hweight32(mask); - hwmon->attrs = kcalloc(n_attrs, sizeof(*hwmon->attrs), GFP_KERNEL); - if (!hwmon->attrs) { - rc = -ENOMEM; - goto fail; - } - - hwmon->device = hwmon_device_register(&efx->pci_dev->dev); - if (IS_ERR(hwmon->device)) { - rc = PTR_ERR(hwmon->device); - goto fail; - } - - rc = efx_mcdi_mon_add_attr(efx, "name", efx_mcdi_mon_show_name, 0, 0, 0); - if (rc) - goto fail; - - for (i = 0, type = -1; ; i++) { - const char *hwmon_prefix; - unsigned hwmon_index; - u16 min1, max1, min2, max2; - - /* Find next sensor type or exit if there is none */ - type++; - while (!(mask & (1 << type))) { - type++; - if (type == 32) - return 0; - } - - /* Skip sensors specific to a different port */ - if (efx_mcdi_sensor_type[type].hwmon_type != EFX_HWMON_UNKNOWN && - efx_mcdi_sensor_type[type].port >= 0 && - efx_mcdi_sensor_type[type].port != efx_port_num(efx)) - continue; - - switch (efx_mcdi_sensor_type[type].hwmon_type) { - case EFX_HWMON_TEMP: - hwmon_prefix = "temp"; - hwmon_index = ++n_temp; /* 1-based */ - break; - case EFX_HWMON_COOL: - /* This is likely to be a heatsink, but there - * is no convention for representing cooling - * devices other than fans. - */ - hwmon_prefix = "fan"; - hwmon_index = ++n_cool; /* 1-based */ - break; - default: - hwmon_prefix = "in"; - hwmon_index = n_in++; /* 0-based */ - break; - } - - min1 = MCDI_ARRAY_FIELD(outbuf, SENSOR_ENTRY, - SENSOR_INFO_ENTRY, i, MIN1); - max1 = MCDI_ARRAY_FIELD(outbuf, SENSOR_ENTRY, - SENSOR_INFO_ENTRY, i, MAX1); - min2 = MCDI_ARRAY_FIELD(outbuf, SENSOR_ENTRY, - SENSOR_INFO_ENTRY, i, MIN2); - max2 = MCDI_ARRAY_FIELD(outbuf, SENSOR_ENTRY, - SENSOR_INFO_ENTRY, i, MAX2); - - if (min1 != max1) { - snprintf(name, sizeof(name), "%s%u_input", - hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( - efx, name, efx_mcdi_mon_show_value, i, type, 0); - if (rc) - goto fail; - - snprintf(name, sizeof(name), "%s%u_min", - hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( - efx, name, efx_mcdi_mon_show_limit, - i, type, min1); - if (rc) - goto fail; - - snprintf(name, sizeof(name), "%s%u_max", - hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( - efx, name, efx_mcdi_mon_show_limit, - i, type, max1); - if (rc) - goto fail; - - if (min2 != max2) { - /* Assume max2 is critical value. - * But we have no good way to expose min2. - */ - snprintf(name, sizeof(name), "%s%u_crit", - hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( - efx, name, efx_mcdi_mon_show_limit, - i, type, max2); - if (rc) - goto fail; - } - } - - snprintf(name, sizeof(name), "%s%u_alarm", - hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( - efx, name, efx_mcdi_mon_show_alarm, i, type, 0); - if (rc) - goto fail; - - if (efx_mcdi_sensor_type[type].label) { - snprintf(name, sizeof(name), "%s%u_label", - hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( - efx, name, efx_mcdi_mon_show_label, i, type, 0); - if (rc) - goto fail; - } - } - -fail: - efx_mcdi_mon_remove(efx); - return rc; -} - -void efx_mcdi_mon_remove(struct efx_nic *efx) -{ - struct siena_nic_data *nic_data = efx->nic_data; - struct efx_mcdi_mon *hwmon = &nic_data->hwmon; - unsigned int i; - - for (i = 0; i < hwmon->n_attrs; i++) - device_remove_file(&efx->pci_dev->dev, - &hwmon->attrs[i].dev_attr); - kfree(hwmon->attrs); - if (hwmon->device) - hwmon_device_unregister(hwmon->device); - efx_nic_free_buffer(efx, &hwmon->dma_buf); -} - -#endif /* CONFIG_SFC_MCDI_MON */ |