1 /* SPDX-License-Identifier: BSD-3-Clause */
2 /* Copyright(c) 2007-2022 Intel Corporation */
28 	u32 id;  member
35  * adf_get_vf_real_id() - Translate fake to real device id
37  * The "real" id is assigned to a device when it is initially
39  * The "fake" id is usually the same as the real id, but
41  * perhaps to assign the device to a guest.
51 		if (ptr->fake_id == fake)  in adf_get_vf_real_id()
52 			return ptr->id;  in adf_get_vf_real_id()
54 	return -1;  in adf_get_vf_real_id()
58  * adf_clean_vf_map() - Cleans VF id mapings
74 		if (map->bdf != -1) {  in adf_clean_vf_map()
75 			id_map[map->id] = 0;  in adf_clean_vf_map()
76 			num_devices--;  in adf_clean_vf_map()
79 		if (vf && map->bdf == -1)  in adf_clean_vf_map()
89  * adf_devmgr_update_class_index() - Update internal index
90  * @hw_data:  Pointer to internal device data.
97 	struct adf_hw_device_class *class = hw_data->dev_class;  in adf_devmgr_update_class_index()
106 		if (ptr->hw_device->dev_class == class)  in adf_devmgr_update_class_index()
107 			ptr->hw_device->instance_id = i++;  in adf_devmgr_update_class_index()
109 		if (i == class->instances)  in adf_devmgr_update_class_index()
129  * adf_devmgr_add_dev() - Add accel_dev to the acceleration framework
130  * @accel_dev:  Pointer to acceleration device.
133  * Function adds acceleration device to the acceleration framework.
134  * To be used by QAT device specific drivers.
154 	if (!accel_dev->is_vf || (accel_dev->is_vf && !pf)) {  in adf_devmgr_add_dev()
168 		list_add_tail(&accel_dev->list, &accel_table);  in adf_devmgr_add_dev()
169 		accel_dev->accel_id = adf_find_free_id();  in adf_devmgr_add_dev()
170 		if (accel_dev->accel_id > ADF_MAX_DEVICES) {  in adf_devmgr_add_dev()
180 		map->bdf = ~0;  in adf_devmgr_add_dev()
181 		map->id = accel_dev->accel_id;  in adf_devmgr_add_dev()
182 		map->fake_id = map->id;  in adf_devmgr_add_dev()
183 		map->attached = true;  in adf_devmgr_add_dev()
184 		list_add_tail(&map->list, &vfs_table);  in adf_devmgr_add_dev()
185 	} else if (accel_dev->is_vf && pf) {  in adf_devmgr_add_dev()
201  * adf_devmgr_rm_dev() - Remove accel_dev from the acceleration framework.
202  * @accel_dev:  Pointer to acceleration device.
205  * Function removes acceleration device from the acceleration framework.
206  * To be used by QAT device specific drivers.
214 	if (!accel_dev->is_vf || (accel_dev->is_vf && !pf)) {  in adf_devmgr_rm_dev()
215 		id_map[accel_dev->accel_id] = 0;  in adf_devmgr_rm_dev()
216 		num_devices--;  in adf_devmgr_rm_dev()
218 	list_del(&accel_dev->list);  in adf_devmgr_rm_dev()
234  * adf_devmgr_pci_to_accel_dev() - Get accel_dev associated with the pci_dev.
235  * @accel_dev:  Pointer to pci device.
237  * Function returns acceleration device associated with the given pci device.
238  * To be used by QAT device specific drivers.
253 		if (ptr->accel_pci_dev.pci_dev == pci_dev) {  in adf_devmgr_pci_to_accel_dev()
263 adf_devmgr_get_dev_by_id(uint32_t id)  in adf_devmgr_get_dev_by_id()  argument
269 	real_id = adf_get_vf_real_id(id);  in adf_devmgr_get_dev_by_id()
273 	id = real_id;  in adf_devmgr_get_dev_by_id()
279 		if (ptr->accel_id == id) {  in adf_devmgr_get_dev_by_id()
290 adf_devmgr_verify_id(uint32_t *id)  in adf_devmgr_verify_id()  argument
294 	if (*id == ADF_CFG_ALL_DEVICES)  in adf_devmgr_verify_id()
297 	accel_dev = adf_devmgr_get_dev_by_id(*id);  in adf_devmgr_verify_id()
301 	/* Correct the id if real and fake differ */  in adf_devmgr_verify_id()
302 	*id = accel_dev->accel_id;  in adf_devmgr_verify_id()
316 		if (ptr->bdf != ~0 && !ptr->attached)  in adf_get_num_dettached_vfs()
326 	*num = num_devices - adf_get_num_dettached_vfs();  in adf_devmgr_get_num_dev()
330  * adf_dev_in_use() - Check whether accel_dev is currently in use
331  * @accel_dev: Pointer to acceleration device.
333  * To be used by QAT device specific drivers.
335  * Return: 1 when device is in use, 0 otherwise.
340 	return atomic_read(&accel_dev->ref_count) != 0;  in adf_dev_in_use()
344  * adf_dev_get() - Increment accel_dev reference count
345  * @accel_dev: Pointer to acceleration device.
350  * To be used by QAT device specific drivers.
357 	if (atomic_add_return(1, &accel_dev->ref_count) == 1)  in adf_dev_get()
362  * adf_dev_put() - Decrement accel_dev reference count
363  * @accel_dev: Pointer to acceleration device.
368  * To be used by QAT device specific drivers.
375 	if (atomic_sub_return(1, &accel_dev->ref_count) == 0)  in adf_dev_put()
380  * adf_devmgr_in_reset() - Check whether device is in reset
381  * @accel_dev: Pointer to acceleration device.
383  * To be used by QAT device specific drivers.
385  * Return: 1 when the device is being reset, 0 otherwise.
390 	return test_bit(ADF_STATUS_RESTARTING, &accel_dev->status);  in adf_devmgr_in_reset()
394  * adf_dev_started() - Check whether device has started
395  * @accel_dev: Pointer to acceleration device.
397  * To be used by QAT device specific drivers.
399  * Return: 1 when the device has started, 0 otherwise
404 	return test_bit(ADF_STATUS_STARTED, &accel_dev->status);  in adf_dev_started()