diff options
author | Furong Zhou <furong.zhou@intel.com> | 2024-02-02 18:53:17 +0800 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2024-02-09 12:57:18 +0800 |
commit | ae508d7afb753f7576c435226e32b9535b7f8b10 (patch) | |
tree | 51c1ed1131d2fcca93be1ea9c9dbae090e1ed9da /drivers/crypto/intel | |
parent | e2b67859ab6efd4458bda1baaee20331a367d995 (diff) | |
download | linux-stable-ae508d7afb753f7576c435226e32b9535b7f8b10.tar.gz linux-stable-ae508d7afb753f7576c435226e32b9535b7f8b10.tar.bz2 linux-stable-ae508d7afb753f7576c435226e32b9535b7f8b10.zip |
crypto: qat - add fatal error notify method
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>
Diffstat (limited to 'drivers/crypto/intel')
-rw-r--r-- | drivers/crypto/intel/qat/qat_common/adf_aer.c | 30 | ||||
-rw-r--r-- | drivers/crypto/intel/qat/qat_common/adf_common_drv.h | 3 | ||||
-rw-r--r-- | drivers/crypto/intel/qat/qat_common/adf_init.c | 12 |
3 files changed, 45 insertions, 0 deletions
diff --git a/drivers/crypto/intel/qat/qat_common/adf_aer.c b/drivers/crypto/intel/qat/qat_common/adf_aer.c index a39e70bd4b21..22a43b4b8315 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_aer.c +++ b/drivers/crypto/intel/qat/qat_common/adf_aer.c @@ -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", diff --git a/drivers/crypto/intel/qat/qat_common/adf_common_drv.h b/drivers/crypto/intel/qat/qat_common/adf_common_drv.h index 0baae42deb3a..8c062d5a8db2 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_common_drv.h +++ b/drivers/crypto/intel/qat/qat_common/adf_common_drv.h @@ -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, diff --git a/drivers/crypto/intel/qat/qat_common/adf_init.c b/drivers/crypto/intel/qat/qat_common/adf_init.c index f43ae9111553..74f0818c0703 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_init.c +++ b/drivers/crypto/intel/qat/qat_common/adf_init.c @@ -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}; |