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Merge pull request #172 from roylee123/master

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Update new thermal plan for fan speed.
This commit is contained in:
Jeffrey Townsend
2017-03-02 07:47:59 -08:00
committed by GitHub
parent 1300f71461 cf54b763c0
commit aa721ab6a4
1 changed files with 188 additions and 82 deletions
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270
packages/platforms/accton/x86-64/x86-64-accton-as7312-54x/onlp/builds/src/module/src/sysi.c
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@@ -36,8 +36,23 @@
#include "x86_64_accton_as7312_54x_int.h"
#include "x86_64_accton_as7312_54x_log.h"
#define PREFIX_PATH_ON_CPLD_DEV "/sys/bus/i2c/devices/"
#define NUM_OF_CPLD 3
#define FAN_DUTY_CYCLE_MAX (100)
#define FAN_DUTY_CYCLE_DEFAULT (32)
#define FAN_DUTY_PLUS_FOR_DIR (13)
/* Note, all chassis fans share 1 single duty setting.
* Here use fan 1 to represent global fan duty value.*/
#define FAN_ID_FOR_SET_FAN_DUTY (1)
#define CELSIUS_RECORD_NUMBER (2) /*Must >= 2*/
typedef struct fan_ctrl_policy {
int duty_cycle; /* In percetage */
int step_up_thermal; /* In mini-Celsius */
int step_dn_thermal; /* In mini-Celsius */
} fan_ctrl_policy_t;
static char arr_cplddev_name[NUM_OF_CPLD][10] =
{
"4-0060",
@@ -123,45 +138,40 @@ onlp_sysi_platform_info_free(onlp_platform_info_t* pi)
/* Thermal plan:
* $TMP = (CPU_core + LM75_1+ LM75_2 + LM75_3 + LM75_4)/5
* 1. If any FAN failed, set all the other fans as full speed (100%)
* 2. In default, fan speed is 31.25% and direction is F2B.
* 3. When $TMP >= 40 C, set fan speed to duty 62.5%.
* 4. When $TMP >= 45 C, set fan speed to duty 100%.
* 1. If any FAN failed, set all the other fans as full speed, 100%.
* 2. If any sensor is high than 45 degrees, set fan speed to duty 62.5%.
* 3. If any sensor is high than 50 degrees, set fan speed to duty 100%.
* 4. When $TMP >= 40 C, set fan speed to duty 62.5%.
* 5. When $TMP >= 45 C, set fan speed to duty 100%.
* 6. When $TMP < 35 C, set fan speed to duty 31.25%.
* 7. Direction factor, when B2F, duty + 13%.
* 7. Direction factor, when B2F, duty + 12.5%.
*
* Note, all chassis fans share 1 single duty setting.
*/
#define FAN_DUTY_CYCLE_MAX (100)
#define FAN_DUTY_CYCLE_DEFAULT (32)
#define FAN_DUTY_PLUS_FOR_DIR (13)
/* Note, all chassis fans share 1 single duty setting.
* Here use fan 1 to represent global fan duty value.*/
#define FAN_ID_FOR_SET_FAN_DUTY (1)
#define CELSIUS_RECORD_NUMBER (2) /*Must >= 2*/
typedef struct fan_ctrl_policy {
int duty_cycle; /* In percetage */
int step_up_thermal; /* In mini-Celsius */
int step_dn_thermal; /* In mini-Celsius */
} fan_ctrl_policy_t;
fan_ctrl_policy_t fan_ctrl_policy_[] = {
fan_ctrl_policy_t fan_ctrl_policy_avg[] = {
{FAN_DUTY_CYCLE_MAX , 45000, INT_MIN},
{63 , 40000, INT_MIN},
{32 , INT_MAX, 35000},
};
fan_ctrl_policy_t fan_ctrl_policy_single[] = {
{FAN_DUTY_CYCLE_MAX , 50000, INT_MIN},
{63 , 45000, INT_MIN},
};
struct fan_control_data_s {
int duty_cycle;
int dir_plus;
int mcelsius_pre[CELSIUS_RECORD_NUMBER];
int mc_avg_pre[CELSIUS_RECORD_NUMBER];
int mc_high_pre[CELSIUS_RECORD_NUMBER];
} fan_control_data_pre =
{
.duty_cycle = FAN_DUTY_CYCLE_DEFAULT,
.dir_plus = 0,
.mcelsius_pre = {INT_MIN+1, INT_MIN}, /*init as thermal rising to avoid full speed.*/
.mc_avg_pre = {INT_MIN+1, INT_MIN}, /*init as thermal rising to avoid full speed.*/
.mc_high_pre = {INT_MIN+1, INT_MIN}, /*init as thermal rising to avoid full speed.*/
};
static int
@@ -235,19 +245,126 @@ sysi_get_thermal_sum(int *mcelsius){
return ONLP_STATUS_E_INTERNAL;
}
*mcelsius += thermal_info.mcelsius;
DEBUG_PRINT("Thermal %d: %d \n ", i, thermal_info.mcelsius);
}
return ONLP_STATUS_OK;
}
static int
sysi_get_duty_by_tempurature(int *duty_cycle){
int mcelsius_avg;
int i, new_duty_cycle, ret;
int maxtrix_len;
int trend, trembled;
int mcelsius[CELSIUS_RECORD_NUMBER+1] = {0};
int *mcelsius_pre_p = &mcelsius[1];
int *mcelsius_now_p = &mcelsius[0];
sysi_get_highest_thermal(int *mcelsius){
onlp_thermal_info_t thermal_info;
int i, highest;
highest = 0;
for (i = 1; i <= CHASSIS_THERMAL_COUNT; i++) {
if (onlp_thermali_info_get(ONLP_THERMAL_ID_CREATE(i), &thermal_info)
!= ONLP_STATUS_OK) {
AIM_LOG_ERROR("Unable to read thermal status");
return ONLP_STATUS_E_INTERNAL;
}
highest = (thermal_info.mcelsius > highest)?
thermal_info.mcelsius : highest;
}
*mcelsius = highest;
return ONLP_STATUS_OK;
}
/* Anaylze thermal changing history to judge if the change is a stable trend. */
static int _is_thermal_a_trend(int *mc_history){
int i, trend, trended;
if (mc_history == NULL) {
AIM_LOG_ERROR("Unable to get history of thermal\n");
return 0;
}
/* Get heat up/down trend. */
trend = 0;
for (i = 0; i < CELSIUS_RECORD_NUMBER; i++) {
if (( mc_history[i+1] < mc_history[i])){
trend++;
}else if (( mc_history[i+1] > mc_history[i])){
trend--;
}
}
trended = (abs(trend) >= ((CELSIUS_RECORD_NUMBER+1)/2))? 1:0;
#if (DEBUG_MODE == 1)
DEBUG_PRINT("[INFO]%s#%d, trended: %d, UP/DW: %d mcelsius:",
__func__, __LINE__, trended, trend );
for (i = 0; i <= CELSIUS_RECORD_NUMBER; i++) {
DEBUG_PRINT(" %d =>", mc_history[i]);
}
DEBUG_PRINT("%c\n", ' ');
#endif
/*For more than half changes are same direction, it's a firm trend.*/
return trended;
}
/* Decide duty by highest value of thermal sensors.*/
static int
sysi_get_duty_by_highest(int *duty_cycle){
int i, ret, maxtrix_len;
int new_duty_cycle = 0 ;
int mc_history[CELSIUS_RECORD_NUMBER+1] = {0};
int *mcelsius_pre_p = &mc_history[1];
int *mcelsius_now_p = &mc_history[0];
/* Fill up mcelsius array,
* [0] is current temperature, others are history.
*/
ret = sysi_get_highest_thermal(mcelsius_now_p);
if(ONLP_STATUS_OK != ret){
return ret;
}
memcpy (mcelsius_pre_p, fan_control_data_pre.mc_high_pre,
sizeof(fan_control_data_pre.mc_high_pre));
DEBUG_PRINT("[INFO]%s#%d, highest mcelsius:%d!\n",
__func__, __LINE__, *mcelsius_now_p);
/* Shift records to the right */
for (i = 0; i < CELSIUS_RECORD_NUMBER; i++) {
fan_control_data_pre.mc_high_pre[i] = mc_history[i];
}
/* Only change duty on consecutive heat rising or falling.*/
maxtrix_len = AIM_ARRAYSIZE(fan_ctrl_policy_single);
/* Only change duty when the thermal changing are firm. */
if (_is_thermal_a_trend(mc_history))
{
int matched = 0;
for (i = 0; i < maxtrix_len; i++) {
if ((*mcelsius_now_p > fan_ctrl_policy_single[i].step_up_thermal)) {
new_duty_cycle = fan_ctrl_policy_single[i].duty_cycle;
matched = !matched;
break;
}
}
/* if (!matched) {
DEBUG_PRINT("%s#%d, celsius(%d) falls into undefined range!!\n",
__func__, __LINE__, *mcelsius_now_p);
} */
}
*duty_cycle = new_duty_cycle;
return ONLP_STATUS_OK;
}
/* Decide duty by average value of thermal sensors.*/
static int
sysi_get_duty_by_average(int *duty_cycle){
int i, mcelsius_avg, ret, maxtrix_len;
int new_duty_cycle=0;
int mc_history[CELSIUS_RECORD_NUMBER+1] = {0};
int *mcelsius_pre_p = &mc_history[1];
int *mcelsius_now_p = &mc_history[0];
/* Fill up mcelsius array,
* [0] is current temperature, others are history.
@@ -258,64 +375,44 @@ sysi_get_duty_by_tempurature(int *duty_cycle){
return ret;
}
mcelsius_avg = (*mcelsius_now_p)/CHASSIS_THERMAL_COUNT;
memcpy (mcelsius_pre_p, fan_control_data_pre.mcelsius_pre, sizeof(fan_control_data_pre.mcelsius_pre));
/* Get heat up/down trend. */
trend = 0;
for (i = 0; i < CELSIUS_RECORD_NUMBER; i++) {
if (( mcelsius[i+1] < mcelsius[i])){
trend++;
}else if (( mcelsius[i+1] > mcelsius[i])){
trend--;
}
}
/*For more than half changes are same direction, it's a firm trend.*/
trembled = (abs(trend) >= ((CELSIUS_RECORD_NUMBER+1)/2))? 0:1;
memcpy (mcelsius_pre_p, fan_control_data_pre.mc_avg_pre,
sizeof(fan_control_data_pre.mc_avg_pre));
DEBUG_PRINT("[ROY]%s#%d, mcelsius:%d!\n", __func__, __LINE__, mcelsius_avg);
DEBUG_PRINT("[ROY]%s#%d, trembled: %d, UP/DW: %d mcelsius:", __func__, __LINE__, trembled, trend );
for (i = 0; i < AIM_ARRAYSIZE(mcelsius); i++) {
DEBUG_PRINT(" %d =>", mcelsius[i]);
}
DEBUG_PRINT("%c\n", ' ');
/* Update Record by shiftting right*/
DEBUG_PRINT("[INFO]%s#%d, mcelsius:%d!\n", __func__, __LINE__, mcelsius_avg);
/* Shift records to the right */
for (i = 0; i < CELSIUS_RECORD_NUMBER; i++) {
fan_control_data_pre.mcelsius_pre[i] = mcelsius[i];
fan_control_data_pre.mc_avg_pre[i] = mc_history[i];
}
/* Only change duty on consecutive heat rising or falling.*/
maxtrix_len = AIM_ARRAYSIZE(fan_ctrl_policy_);
new_duty_cycle = fan_control_data_pre.duty_cycle;
if (!trembled)
maxtrix_len = AIM_ARRAYSIZE(fan_ctrl_policy_avg);
/* Only change duty when the thermal changing are firm. */
if (_is_thermal_a_trend(mc_history))
{
int matched = 0;
if (trend > 0)
{
for (i = 0; i < maxtrix_len; i++) {
if ((mcelsius_avg >= fan_ctrl_policy_[i].step_up_thermal)) {
new_duty_cycle = fan_ctrl_policy_[i].duty_cycle;
matched = !matched;
break;
}
}
}
else if (trend < 0)
{
for (i = maxtrix_len-1; i>=0; i--) {
if ((mcelsius_avg <= fan_ctrl_policy_[i].step_dn_thermal)) {
new_duty_cycle = fan_ctrl_policy_[i].duty_cycle;
matched = !matched;
break;
}
for (i = 0; i < maxtrix_len; i++) {
if ((mcelsius_avg >= fan_ctrl_policy_avg[i].step_up_thermal)) {
new_duty_cycle = fan_ctrl_policy_avg[i].duty_cycle;
matched = !matched;
break;
}
}
if (!matched) {
for (i = maxtrix_len-1; i>=0; i--) {
if ((mcelsius_avg < fan_ctrl_policy_avg[i].step_dn_thermal)) {
new_duty_cycle = fan_ctrl_policy_avg[i].duty_cycle;
matched = !matched;
break;
}
}
/*if (!matched) {
DEBUG_PRINT("%s#%d, celsius(%d) falls into undefined range!!\n",
__func__, __LINE__, mcelsius_avg);
}
} */
}
*duty_cycle = new_duty_cycle;
return ONLP_STATUS_OK;
}
@@ -325,7 +422,7 @@ onlp_sysi_platform_manage_fans(void)
{
uint32_t fan_dir;
int ret;
int cur_duty_cycle, new_duty_cycle;
int cur_duty_cycle, new_duty_cycle, tmp;
int direct_addon = 0;
onlp_oid_t fan_duty_oid = ONLP_FAN_ID_CREATE(FAN_ID_FOR_SET_FAN_DUTY);
@@ -353,15 +450,24 @@ onlp_sysi_platform_manage_fans(void)
/**********************************************************
* Decision 3: Decide new fan speed depend on fan direction and temperature
**********************************************************/
ret = sysi_get_duty_by_tempurature(&new_duty_cycle);
ret = sysi_get_duty_by_average(&new_duty_cycle);
if (ONLP_STATUS_OK != ret){
return ret;
}
ret = sysi_get_duty_by_highest(&tmp);
if (ONLP_STATUS_OK != ret){
return ret;
}
fan_control_data_pre.duty_cycle = new_duty_cycle;
fan_control_data_pre.dir_plus = direct_addon;
DEBUG_PRINT("[ROY]%s#%d, new duty: %d = %d + %d (%d)!\n", __func__, __LINE__,
new_duty_cycle = (tmp > new_duty_cycle)? tmp : new_duty_cycle;
if (new_duty_cycle == 0)
{
new_duty_cycle = fan_control_data_pre.duty_cycle;
} else {
fan_control_data_pre.duty_cycle = new_duty_cycle;
}
fan_control_data_pre.dir_plus = direct_addon;
DEBUG_PRINT("[INFO]%s#%d, new duty: %d = %d + %d (%d)!\n", __func__, __LINE__,
new_duty_cycle + direct_addon, new_duty_cycle, direct_addon, cur_duty_cycle);
new_duty_cycle += direct_addon;