int
pqos_mon_start_pid(const pid_t pid,
const enum pqos_mon_event event,
void *context,
struct pqos_mon_data *group)
{
/**
* Check params
*/
if (group == NULL || event == 0 || pid < 0)
return PQOS_RETVAL_PARAM;
#ifdef PQOS_NO_PID_API
UNUSED_PARAM(context);
LOG_ERROR("PID monitoring API not built\n");
return PQOS_RETVAL_ERROR;
#else
int ret = PQOS_RETVAL_OK;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
group->event = event;
group->pid = pid;
group->context = context;
ret = pqos_pid_start(group);
_pqos_api_unlock();
return ret;
#endif /* PQOS_NO_PID_API */
}
int
pqos_mba_get(const unsigned socket,
const unsigned max_num_cos,
unsigned *num_cos,
struct pqos_mba *mba_tab)
{
int ret;
if (num_cos == NULL || mba_tab == NULL || max_num_cos == 0)
return PQOS_RETVAL_PARAM;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_mba_get(socket, max_num_cos, num_cos, mba_tab);
else {
#ifdef __linux__
ret = os_mba_get(socket, max_num_cos, num_cos, mba_tab);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
int
pqos_l2ca_get(const unsigned l2id,
const unsigned max_num_ca,
unsigned *num_ca,
struct pqos_l2ca *ca)
{
int ret;
if (num_ca == NULL || ca == NULL || max_num_ca == 0)
return PQOS_RETVAL_PARAM;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_l2ca_get(l2id, max_num_ca, num_ca, ca);
else {
#ifdef __linux__
ret = os_l2ca_get(l2id, max_num_ca, num_ca, ca);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
int
pqos_l2ca_get_min_cbm_bits(unsigned *min_cbm_bits)
{
int ret;
if (min_cbm_bits == NULL)
return PQOS_RETVAL_PARAM;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_l2ca_get_min_cbm_bits(min_cbm_bits);
else {
#ifdef __linux__
ret = os_l2ca_get_min_cbm_bits(min_cbm_bits);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
/*
* =======================================
* Allocation Technology
* =======================================
*/
int
pqos_alloc_assoc_set(const unsigned lcore,
const unsigned class_id)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_alloc_assoc_set(lcore, class_id);
else {
#ifdef __linux__
ret = os_alloc_assoc_set(lcore, class_id);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
int
pqos_mon_stop(struct pqos_mon_data *group)
{
int ret;
if (group == NULL)
return PQOS_RETVAL_PARAM;
if (group->valid != GROUP_VALID_MARKER)
return PQOS_RETVAL_PARAM;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_mon_stop(group);
else {
#ifdef __linux__
ret = os_mon_stop(group);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
int
pqos_alloc_release(const unsigned *core_array,
const unsigned core_num)
{
int ret;
if (core_num == 0 || core_array == NULL)
return PQOS_RETVAL_PARAM;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_alloc_release(core_array, core_num);
else {
#ifdef __linux__
ret = os_alloc_release(core_array, core_num);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
int
pqos_alloc_release_pid(const pid_t *task_array,
const unsigned task_num)
{
int ret;
if (task_array == NULL || task_num == 0)
return PQOS_RETVAL_PARAM;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface != PQOS_INTER_OS &&
m_interface != PQOS_INTER_OS_RESCTRL_MON) {
LOG_ERROR("Incompatible interface "
"selected for task association!\n");
_pqos_api_unlock();
return PQOS_RETVAL_ERROR;
}
#ifdef __linux__
ret = os_alloc_release_pid(task_array, task_num);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
_pqos_api_unlock();
return ret;
}
int
pqos_mon_start_pids(const unsigned num_pids,
const pid_t *pids,
const enum pqos_mon_event event,
void *context,
struct pqos_mon_data *group)
{
int ret;
if (num_pids == 0 || pids == NULL || group == NULL || event == 0)
return PQOS_RETVAL_PARAM;
if (group->valid == GROUP_VALID_MARKER)
return PQOS_RETVAL_PARAM;
if (m_interface != PQOS_INTER_OS &&
m_interface != PQOS_INTER_OS_RESCTRL_MON) {
LOG_ERROR("Incompatible interface "
"selected for task monitoring!\n");
return PQOS_RETVAL_ERROR;
}
/**
* Validate event parameter
* - only combinations of events allowed
* - do not allow non-PQoS events to be monitored on its own
*/
if (event & (~(PQOS_MON_EVENT_L3_OCCUP | PQOS_MON_EVENT_LMEM_BW |
PQOS_MON_EVENT_TMEM_BW | PQOS_MON_EVENT_RMEM_BW |
PQOS_PERF_EVENT_IPC | PQOS_PERF_EVENT_LLC_MISS)))
return PQOS_RETVAL_PARAM;
if ((event & (PQOS_MON_EVENT_L3_OCCUP | PQOS_MON_EVENT_LMEM_BW |
PQOS_MON_EVENT_TMEM_BW | PQOS_MON_EVENT_RMEM_BW)) == 0 &&
(event & (PQOS_PERF_EVENT_IPC | PQOS_PERF_EVENT_LLC_MISS)) != 0)
return PQOS_RETVAL_PARAM;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
#ifdef __linux__
ret = os_mon_start_pids(num_pids, pids, event, context, group);
#else
UNUSED_PARAM(context);
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
if (ret == PQOS_RETVAL_OK)
group->valid = GROUP_VALID_MARKER;
_pqos_api_unlock();
return ret;
}
int
pqos_alloc_assoc_set_pid(const pid_t task,
const unsigned class_id)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface != PQOS_INTER_OS &&
m_interface != PQOS_INTER_OS_RESCTRL_MON) {
LOG_ERROR("Incompatible interface "
"selected for task association!\n");
_pqos_api_unlock();
return PQOS_RETVAL_ERROR;
}
#ifdef __linux__
ret = os_alloc_assoc_set_pid(task, class_id);
#else
UNUSED_PARAM(task);
UNUSED_PARAM(class_id);
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
_pqos_api_unlock();
return ret;
}
int
pqos_mon_assoc_get(const unsigned lcore,
pqos_rmid_t *rmid)
{
int ret = PQOS_RETVAL_OK;
unsigned cluster = 0;
_pqos_api_lock();
ret = mon_assoc_param_check(lcore, &cluster);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (rmid == NULL) {
_pqos_api_unlock();
return PQOS_RETVAL_PARAM;
}
ret = mon_assoc_get(lcore, rmid);
_pqos_api_unlock();
return ret;
}
int
pqos_mon_reset(void)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_mon_reset();
else {
#ifdef __linux__
ret = os_mon_reset();
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
int
pqos_mon_assoc_get(const unsigned lcore,
pqos_rmid_t *rmid)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_mon_assoc_get(lcore, rmid);
else {
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
}
_pqos_api_unlock();
return ret;
}
int
pqos_mon_start(const unsigned num_cores,
const unsigned *cores,
const enum pqos_mon_event event,
void *context,
struct pqos_mon_data *group)
{
int ret;
if (group == NULL || cores == NULL || num_cores == 0 || event == 0)
return PQOS_RETVAL_PARAM;
if (group->valid == GROUP_VALID_MARKER)
return PQOS_RETVAL_PARAM;
/**
* Validate event parameter
* - only combinations of events allowed
* - do not allow non-PQoS events to be monitored on its own
*/
if (event & (~(PQOS_MON_EVENT_L3_OCCUP | PQOS_MON_EVENT_LMEM_BW |
PQOS_MON_EVENT_TMEM_BW | PQOS_MON_EVENT_RMEM_BW |
PQOS_PERF_EVENT_IPC | PQOS_PERF_EVENT_LLC_MISS)))
return PQOS_RETVAL_PARAM;
if ((event & (PQOS_MON_EVENT_L3_OCCUP | PQOS_MON_EVENT_LMEM_BW |
PQOS_MON_EVENT_TMEM_BW | PQOS_MON_EVENT_RMEM_BW)) == 0 &&
(event & (PQOS_PERF_EVENT_IPC | PQOS_PERF_EVENT_LLC_MISS)) != 0)
return PQOS_RETVAL_PARAM;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_mon_start(num_cores, cores, event, context, group);
else {
#ifdef __linux__
ret = os_mon_start(num_cores, cores, event, context, group);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
if (ret == PQOS_RETVAL_OK)
group->valid = GROUP_VALID_MARKER;
_pqos_api_unlock();
return ret;
}
int
pqos_l3ca_set(const unsigned socket,
const unsigned num_cos,
const struct pqos_l3ca *ca)
{
int ret;
unsigned i;
if (ca == NULL || num_cos == 0)
return PQOS_RETVAL_PARAM;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
/**
* Check if class bitmasks are contiguous.
*/
for (i = 0; i < num_cos; i++) {
int is_contig = 0;
if (ca[i].cdp) {
is_contig = is_contiguous(ca[i].u.s.data_mask) &&
is_contiguous(ca[i].u.s.code_mask);
} else
is_contig = is_contiguous(ca[i].u.ways_mask);
if (!is_contig) {
LOG_ERROR("L3 COS%u bit mask is not contiguous!\n",
ca[i].class_id);
_pqos_api_unlock();
return PQOS_RETVAL_PARAM;
}
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_l3ca_set(socket, num_cos, ca);
else {
#ifdef __linux__
ret = os_l3ca_set(socket, num_cos, ca);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
int
pqos_alloc_reset(const enum pqos_cdp_config l3_cdp_cfg,
const enum pqos_cdp_config l2_cdp_cfg,
const enum pqos_mba_config mba_cfg)
{
int ret;
if (l3_cdp_cfg != PQOS_REQUIRE_CDP_ON &&
l3_cdp_cfg != PQOS_REQUIRE_CDP_OFF &&
l3_cdp_cfg != PQOS_REQUIRE_CDP_ANY) {
LOG_ERROR("Unrecognized L3 CDP configuration setting %d!\n",
l3_cdp_cfg);
return PQOS_RETVAL_PARAM;
}
if (l2_cdp_cfg != PQOS_REQUIRE_CDP_ON &&
l2_cdp_cfg != PQOS_REQUIRE_CDP_OFF &&
l2_cdp_cfg != PQOS_REQUIRE_CDP_ANY) {
LOG_ERROR("Unrecognized L2 CDP configuration setting %d!\n",
l2_cdp_cfg);
return PQOS_RETVAL_PARAM;
}
if (mba_cfg != PQOS_MBA_ANY &&
mba_cfg != PQOS_MBA_DEFAULT &&
mba_cfg != PQOS_MBA_CTRL) {
LOG_ERROR("Unrecognized MBA configuration setting %d!\n",
mba_cfg);
return PQOS_RETVAL_PARAM;
}
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_alloc_reset(l3_cdp_cfg, l2_cdp_cfg, mba_cfg);
else {
#ifdef __linux__
ret = os_alloc_reset(l3_cdp_cfg, l2_cdp_cfg, mba_cfg);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
int
pqos_mon_poll(struct pqos_mon_data **groups,
const unsigned num_groups)
{
int ret = PQOS_RETVAL_OK;
unsigned i = 0;
ASSERT(groups != NULL);
ASSERT(num_groups > 0);
if (groups == NULL || num_groups == 0 || *groups == NULL)
return PQOS_RETVAL_PARAM;
for (i = 0; i < num_groups; i++) {
if (groups[i] == NULL)
return PQOS_RETVAL_PARAM;
}
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
for (i = 0; i < num_groups; i++) {
/**
* If monitoring PID then read
* counter values
*/
if (groups[i]->pid > 0) {
#ifdef PQOS_NO_PID_API
LOG_ERROR("PID monitoring API not built\n");
_pqos_api_unlock();
return PQOS_RETVAL_ERROR;
#else
ret = pqos_pid_poll(groups[i]);
if (ret != PQOS_RETVAL_OK)
LOG_WARN("Failed to read event values "
"for PID %u!\n", groups[i]->pid);
#endif /* PQOS_NO_PID_API */
} else {
ret = pqos_core_poll(groups[i]);
if (ret != PQOS_RETVAL_OK)
LOG_WARN("Failed to read event on "
"core %u\n", groups[i]->cores[0]);
}
}
_pqos_api_unlock();
return PQOS_RETVAL_OK;
}
int
pqos_alloc_assoc_get(const unsigned lcore,
unsigned *class_id)
{
const struct pqos_capability *l3_cap = NULL;
const struct pqos_capability *l2_cap = NULL;
int ret = PQOS_RETVAL_OK;
const uint32_t reg = PQOS_MSR_ASSOC;
uint64_t val = 0;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (class_id == NULL) {
_pqos_api_unlock();
return PQOS_RETVAL_PARAM;
}
ASSERT(m_cpu != NULL);
ret = pqos_cpu_check_core(m_cpu, lcore);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return PQOS_RETVAL_PARAM;
}
ASSERT(m_cap != NULL);
ret = pqos_cap_get_type(m_cap, PQOS_CAP_TYPE_L3CA, &l3_cap);
if (ret != PQOS_RETVAL_OK && ret != PQOS_RETVAL_RESOURCE) {
_pqos_api_unlock();
return ret;
}
ret = pqos_cap_get_type(m_cap, PQOS_CAP_TYPE_L2CA, &l2_cap);
if (ret != PQOS_RETVAL_OK && ret != PQOS_RETVAL_RESOURCE) {
_pqos_api_unlock();
return ret;
}
if (l2_cap == NULL && l3_cap == NULL) {
/* no L2/L3 CAT detected */
_pqos_api_unlock();
return PQOS_RETVAL_RESOURCE;
}
if (msr_read(lcore, reg, &val) != MACHINE_RETVAL_OK) {
_pqos_api_unlock();
return PQOS_RETVAL_ERROR;
}
val >>= PQOS_MSR_ASSOC_QECOS_SHIFT;
*class_id = (unsigned) val;
_pqos_api_unlock();
return PQOS_RETVAL_OK;
}
int
pqos_mba_set(const unsigned socket,
const unsigned num_cos,
const struct pqos_mba *requested,
struct pqos_mba *actual)
{
int ret;
unsigned i;
if (requested == NULL || num_cos == 0)
return PQOS_RETVAL_PARAM;
/**
* Check if MBA rate is within allowed range
*/
for (i = 0; i < num_cos; i++)
if (requested[i].ctrl == 0 &&
(requested[i].mb_max == 0 || requested[i].mb_max > 100)) {
LOG_ERROR("MBA COS%u rate out of range (from 1-100)!\n",
requested[i].class_id);
return PQOS_RETVAL_PARAM;
}
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_mba_set(socket, num_cos, requested, actual);
else {
#ifdef __linux__
ret = os_mba_set(socket, num_cos, requested, actual);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
int pqos_alloc_reset(const enum pqos_cdp_config l3_cdp_cfg)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
ret = hw_alloc_reset(l3_cdp_cfg);
_pqos_api_unlock();
return ret;
}
int pqos_alloc_assoc_get(const unsigned lcore,
unsigned *class_id)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
ret = hw_alloc_assoc_get(lcore, class_id);
_pqos_api_unlock();
return ret;
}
int pqos_alloc_release(const unsigned *core_array,
const unsigned core_num)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
ret = hw_alloc_release(core_array, core_num);
_pqos_api_unlock();
return ret;
}
int pqos_l2ca_set(const unsigned l2id,
const unsigned num_cos,
const struct pqos_l2ca *ca)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
ret = hw_l2ca_set(l2id, num_cos, ca);
_pqos_api_unlock();
return ret;
}
int pqos_alloc_assign(const unsigned technology,
const unsigned *core_array,
const unsigned core_num,
unsigned *class_id)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
ret = hw_alloc_assign(technology, core_array, core_num, class_id);
_pqos_api_unlock();
return ret;
}
int pqos_mba_get(const unsigned socket,
const unsigned max_num_cos,
unsigned *num_cos,
struct pqos_mba *mba_tab)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
ret = hw_mba_get(socket, max_num_cos, num_cos, mba_tab);
_pqos_api_unlock();
return ret;
}
int pqos_l2ca_get(const unsigned l2id,
const unsigned max_num_ca,
unsigned *num_ca,
struct pqos_l2ca *ca)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
ret = hw_l2ca_get(l2id, max_num_ca, num_ca, ca);
_pqos_api_unlock();
return ret;
}
int pqos_mba_set(const unsigned socket,
const unsigned num_cos,
const struct pqos_mba *requested,
struct pqos_mba *actual)
{
int ret;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
ret = hw_mba_set(socket, num_cos, requested, actual);
_pqos_api_unlock();
return ret;
}
int
pqos_mon_poll(struct pqos_mon_data **groups,
const unsigned num_groups)
{
int ret;
unsigned i;
if (groups == NULL || num_groups == 0 || *groups == NULL)
return PQOS_RETVAL_PARAM;
for (i = 0; i < num_groups; i++) {
if (groups[i] == NULL)
return PQOS_RETVAL_PARAM;
if (groups[i]->valid != GROUP_VALID_MARKER)
return PQOS_RETVAL_PARAM;
}
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_mon_poll(groups, num_groups);
else {
#ifdef __linux__
ret = os_mon_poll(groups, num_groups);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}
int pqos_mon_remove_pids(const unsigned num_pids,
const pid_t *pids,
struct pqos_mon_data *group)
{
int ret;
if (num_pids == 0 || pids == NULL || group == NULL)
return PQOS_RETVAL_PARAM;
if (group->valid != GROUP_VALID_MARKER)
return PQOS_RETVAL_PARAM;
if (m_interface != PQOS_INTER_OS &&
m_interface != PQOS_INTER_OS_RESCTRL_MON) {
LOG_ERROR("Incompatible interface "
"selected for task monitoring!\n");
return PQOS_RETVAL_ERROR;
}
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
#ifdef __linux__
ret = os_mon_remove_pids(num_pids, pids, group);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
_pqos_api_unlock();
return ret;
}
int
pqos_alloc_assign(const unsigned technology,
const unsigned *core_array,
const unsigned core_num,
unsigned *class_id)
{
int ret;
const int l2_req = ((technology & (1 << PQOS_CAP_TYPE_L2CA)) != 0);
const int l3_req = ((technology & (1 << PQOS_CAP_TYPE_L3CA)) != 0);
const int mba_req = ((technology & (1 << PQOS_CAP_TYPE_MBA)) != 0);
if (core_num == 0 || core_array == NULL || class_id == NULL ||
!(l2_req || l3_req || mba_req))
return PQOS_RETVAL_PARAM;
_pqos_api_lock();
ret = _pqos_check_init(1);
if (ret != PQOS_RETVAL_OK) {
_pqos_api_unlock();
return ret;
}
if (m_interface == PQOS_INTER_MSR)
ret = hw_alloc_assign(technology, core_array,
core_num, class_id);
else {
#ifdef __linux__
ret = os_alloc_assign(technology, core_array, core_num,
class_id);
#else
LOG_INFO("OS interface not supported!\n");
ret = PQOS_RETVAL_RESOURCE;
#endif
}
_pqos_api_unlock();
return ret;
}