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crypto: qat - add fatal error notify method

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Add error notify method to report a fatal error event to all the
subsystems registered. In addition expose an API,
adf_notify_fatal_error(), that allows to trigger a fatal error
notification asynchronously in the context of a workqueue.

This will be invoked when a fatal error is detected by the ISR or
through Heartbeat.

Signed-off-by: Furong Zhou <furong.zhou@intel.com>
Reviewed-by: Ahsan Atta <ahsan.atta@intel.com>
Reviewed-by: Markas Rapoportas <markas.rapoportas@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Mun Chun Yep <mun.chun.yep@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Furong Zhou 2024-02-02 18:53:17 +08:00 committed by Herbert Xu
parent e2b67859ab
commit ae508d7afb
3 changed files with 45 additions and 0 deletions
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30
drivers/crypto/intel/qat/qat_common/adf_aer.c
View file

@ -8,6 +8,11 @@
#include "adf_accel_devices.h"
#include "adf_common_drv.h"
struct adf_fatal_error_data {
struct adf_accel_dev *accel_dev;
struct work_struct work;
};
static struct workqueue_struct *device_reset_wq;
static pci_ers_result_t adf_error_detected(struct pci_dev *pdev,
@ -171,6 +176,31 @@ const struct pci_error_handlers adf_err_handler = {
};
EXPORT_SYMBOL_GPL(adf_err_handler);
static void adf_notify_fatal_error_worker(struct work_struct *work)
{
struct adf_fatal_error_data *wq_data =
container_of(work, struct adf_fatal_error_data, work);
struct adf_accel_dev *accel_dev = wq_data->accel_dev;
adf_error_notifier(accel_dev);
kfree(wq_data);
}
int adf_notify_fatal_error(struct adf_accel_dev *accel_dev)
{
struct adf_fatal_error_data *wq_data;
wq_data = kzalloc(sizeof(*wq_data), GFP_ATOMIC);
if (!wq_data)
return -ENOMEM;
wq_data->accel_dev = accel_dev;
INIT_WORK(&wq_data->work, adf_notify_fatal_error_worker);
adf_misc_wq_queue_work(&wq_data->work);
return 0;
}
int adf_init_aer(void)
{
device_reset_wq = alloc_workqueue("qat_device_reset_wq",

3
drivers/crypto/intel/qat/qat_common/adf_common_drv.h
View file

@ -40,6 +40,7 @@ enum adf_event {
ADF_EVENT_SHUTDOWN,
ADF_EVENT_RESTARTING,
ADF_EVENT_RESTARTED,
ADF_EVENT_FATAL_ERROR,
};
struct service_hndl {
@ -60,6 +61,8 @@ int adf_dev_restart(struct adf_accel_dev *accel_dev);
void adf_devmgr_update_class_index(struct adf_hw_device_data *hw_data);
void adf_clean_vf_map(bool);
int adf_notify_fatal_error(struct adf_accel_dev *accel_dev);
void adf_error_notifier(struct adf_accel_dev *accel_dev);
int adf_devmgr_add_dev(struct adf_accel_dev *accel_dev,
struct adf_accel_dev *pf);
void adf_devmgr_rm_dev(struct adf_accel_dev *accel_dev,

12
drivers/crypto/intel/qat/qat_common/adf_init.c
View file

@ -433,6 +433,18 @@ int adf_dev_restarted_notify(struct adf_accel_dev *accel_dev)
return 0;
}
void adf_error_notifier(struct adf_accel_dev *accel_dev)
{
struct service_hndl *service;
list_for_each_entry(service, &service_table, list) {
if (service->event_hld(accel_dev, ADF_EVENT_FATAL_ERROR))
dev_err(&GET_DEV(accel_dev),
"Failed to send error event to %s.\n",
service->name);
}
}
static int adf_dev_shutdown_cache_cfg(struct adf_accel_dev *accel_dev)
{
char services[ADF_CFG_MAX_VAL_LEN_IN_BYTES] = {0};