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path: root/drivers/crypto/qat/qat_common/adf_init.c
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Diffstat (limited to 'drivers/crypto/qat/qat_common/adf_init.c')
-rw-r--r--drivers/crypto/qat/qat_common/adf_init.c98
1 files changed, 84 insertions, 14 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_init.c b/drivers/crypto/qat/qat_common/adf_init.c
index 5c0e47a..8f0ca49 100644
--- a/drivers/crypto/qat/qat_common/adf_init.c
+++ b/drivers/crypto/qat/qat_common/adf_init.c
@@ -108,26 +108,47 @@ int adf_service_unregister(struct service_hndl *service)
EXPORT_SYMBOL_GPL(adf_service_unregister);
/**
- * adf_dev_start() - Start acceleration service for the given accel device
- * @accel_dev: Pointer to acceleration device.
+ * adf_dev_init() - Init data structures and services for the given accel device
+ * @accel_dev: Pointer to acceleration device.
*
- * Function notifies all the registered services that the acceleration device
- * is ready to be used.
- * To be used by QAT device specific drivers.
+ * Initialize the ring data structures and the admin comms and arbitration
+ * services.
*
* Return: 0 on success, error code othewise.
*/
-int adf_dev_start(struct adf_accel_dev *accel_dev)
+int adf_dev_init(struct adf_accel_dev *accel_dev)
{
struct service_hndl *service;
struct list_head *list_itr;
struct adf_hw_device_data *hw_data = accel_dev->hw_device;
+ if (!hw_data) {
+ dev_err(&GET_DEV(accel_dev),
+ "QAT: Failed to init device - hw_data not set\n");
+ return -EFAULT;
+ }
+
if (!test_bit(ADF_STATUS_CONFIGURED, &accel_dev->status)) {
pr_info("QAT: Device not configured\n");
return -EFAULT;
}
- set_bit(ADF_STATUS_STARTING, &accel_dev->status);
+
+ if (adf_init_etr_data(accel_dev)) {
+ dev_err(&GET_DEV(accel_dev), "Failed initialize etr\n");
+ return -EFAULT;
+ }
+
+ if (hw_data->init_admin_comms && hw_data->init_admin_comms(accel_dev)) {
+ dev_err(&GET_DEV(accel_dev), "Failed initialize admin comms\n");
+ return -EFAULT;
+ }
+
+ if (hw_data->init_arb && hw_data->init_arb(accel_dev)) {
+ dev_err(&GET_DEV(accel_dev), "Failed initialize hw arbiter\n");
+ return -EFAULT;
+ }
+
+ hw_data->enable_ints(accel_dev);
if (adf_ae_init(accel_dev)) {
pr_err("QAT: Failed to initialise Acceleration Engine\n");
@@ -178,6 +199,27 @@ int adf_dev_start(struct adf_accel_dev *accel_dev)
hw_data->enable_error_correction(accel_dev);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(adf_dev_init);
+
+/**
+ * adf_dev_start() - Start acceleration service for the given accel device
+ * @accel_dev: Pointer to acceleration device.
+ *
+ * Function notifies all the registered services that the acceleration device
+ * is ready to be used.
+ * To be used by QAT device specific drivers.
+ *
+ * Return: 0 on success, error code othewise.
+ */
+int adf_dev_start(struct adf_accel_dev *accel_dev)
+{
+ struct service_hndl *service;
+ struct list_head *list_itr;
+
+ set_bit(ADF_STATUS_STARTING, &accel_dev->status);
+
if (adf_ae_start(accel_dev)) {
pr_err("QAT: AE Start Failed\n");
return -EFAULT;
@@ -232,16 +274,15 @@ EXPORT_SYMBOL_GPL(adf_dev_start);
*/
int adf_dev_stop(struct adf_accel_dev *accel_dev)
{
- struct adf_hw_device_data *hw_data = accel_dev->hw_device;
struct service_hndl *service;
struct list_head *list_itr;
- int ret, wait = 0;
+ bool wait = false;
+ int ret;
if (!adf_dev_started(accel_dev) &&
!test_bit(ADF_STATUS_STARTING, &accel_dev->status)) {
return 0;
}
- clear_bit(ADF_STATUS_CONFIGURED, &accel_dev->status);
clear_bit(ADF_STATUS_STARTING, &accel_dev->status);
clear_bit(ADF_STATUS_STARTED, &accel_dev->status);
@@ -258,7 +299,7 @@ int adf_dev_stop(struct adf_accel_dev *accel_dev)
if (!ret) {
clear_bit(accel_dev->accel_id, &service->start_status);
} else if (ret == -EAGAIN) {
- wait = 1;
+ wait = true;
clear_bit(accel_dev->accel_id, &service->start_status);
}
}
@@ -278,13 +319,36 @@ int adf_dev_stop(struct adf_accel_dev *accel_dev)
if (wait)
msleep(100);
- if (adf_dev_started(accel_dev)) {
+ if (test_bit(ADF_STATUS_AE_STARTED, &accel_dev->status)) {
if (adf_ae_stop(accel_dev))
pr_err("QAT: failed to stop AE\n");
else
clear_bit(ADF_STATUS_AE_STARTED, &accel_dev->status);
}
+ return 0;
+}
+EXPORT_SYMBOL_GPL(adf_dev_stop);
+
+/**
+ * adf_dev_shutdown() - shutdown acceleration services and data strucutures
+ * @accel_dev: Pointer to acceleration device
+ *
+ * Cleanup the ring data structures and the admin comms and arbitration
+ * services.
+ */
+void adf_dev_shutdown(struct adf_accel_dev *accel_dev)
+{
+ struct adf_hw_device_data *hw_data = accel_dev->hw_device;
+ struct service_hndl *service;
+ struct list_head *list_itr;
+
+ if (!hw_data) {
+ dev_err(&GET_DEV(accel_dev),
+ "QAT: Failed to shutdown device - hw_data not set\n");
+ return;
+ }
+
if (test_bit(ADF_STATUS_AE_UCODE_LOADED, &accel_dev->status)) {
if (adf_ae_fw_release(accel_dev))
pr_err("QAT: Failed to release the ucode\n");
@@ -335,9 +399,15 @@ int adf_dev_stop(struct adf_accel_dev *accel_dev)
if (!test_bit(ADF_STATUS_RESTARTING, &accel_dev->status))
adf_cfg_del_all(accel_dev);
- return 0;
+ if (hw_data->exit_arb)
+ hw_data->exit_arb(accel_dev);
+
+ if (hw_data->exit_admin_comms)
+ hw_data->exit_admin_comms(accel_dev);
+
+ adf_cleanup_etr_data(accel_dev);
}
-EXPORT_SYMBOL_GPL(adf_dev_stop);
+EXPORT_SYMBOL_GPL(adf_dev_shutdown);
int adf_dev_restarting_notify(struct adf_accel_dev *accel_dev)
{

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