1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright (c) 2016-2017 Hisilicon Limited.
22 		if (!hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))  in hnae3_unregister_ae_algo_prepare()
25 		pci_id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);  in hnae3_unregister_ae_algo_prepare()
29 			pci_disable_sriov(ae_dev->pdev);  in hnae3_unregister_ae_algo_prepare()
35  * list. This is a non-critical code so other updations, if happen
49 void hnae3_set_client_init_flag(struct hnae3_client *client,  in hnae3_set_client_init_flag()  argument
53 	if (!client || !ae_dev)  in hnae3_set_client_init_flag()
56 	switch (client->type) {  in hnae3_set_client_init_flag()
58 		hnae3_set_bit(ae_dev->flag, HNAE3_KNIC_CLIENT_INITED_B, inited);  in hnae3_set_client_init_flag()
61 		hnae3_set_bit(ae_dev->flag, HNAE3_ROCE_CLIENT_INITED_B, inited);  in hnae3_set_client_init_flag()
69 static int hnae3_get_client_init_flag(struct hnae3_client *client,  in hnae3_get_client_init_flag()  argument
74 	switch (client->type) {  in hnae3_get_client_init_flag()
76 		inited = hnae3_get_bit(ae_dev->flag,  in hnae3_get_client_init_flag()
80 		inited = hnae3_get_bit(ae_dev->flag,  in hnae3_get_client_init_flag()
90 static int hnae3_init_client_instance(struct hnae3_client *client,  in hnae3_init_client_instance()  argument
95 	/* check if this client matches the type of ae_dev */  in hnae3_init_client_instance()
96 	if (!(hnae3_client_match(client->type) &&  in hnae3_init_client_instance()
97 	      hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))) {  in hnae3_init_client_instance()
101 	ret = ae_dev->ops->init_client_instance(client, ae_dev);  in hnae3_init_client_instance()
103 		dev_err(&ae_dev->pdev->dev,  in hnae3_init_client_instance()
104 			"fail to instantiate client, ret = %d\n", ret);  in hnae3_init_client_instance()
109 static void hnae3_uninit_client_instance(struct hnae3_client *client,  in hnae3_uninit_client_instance()  argument
112 	/* check if this client matches the type of ae_dev */  in hnae3_uninit_client_instance()
113 	if (!(hnae3_client_match(client->type) &&  in hnae3_uninit_client_instance()
114 	      hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B)))  in hnae3_uninit_client_instance()
117 	if (hnae3_get_client_init_flag(client, ae_dev)) {  in hnae3_uninit_client_instance()
118 		ae_dev->ops->uninit_client_instance(client, ae_dev);  in hnae3_uninit_client_instance()
120 		hnae3_set_client_init_flag(client, ae_dev, 0);  in hnae3_uninit_client_instance()
124 int hnae3_register_client(struct hnae3_client *client)  in hnae3_register_client()  argument
129 	if (!client)  in hnae3_register_client()
130 		return -ENODEV;  in hnae3_register_client()
133 	/* one system should only have one client for every type */  in hnae3_register_client()
135 		if (client_tmp->type == client->type)  in hnae3_register_client()
139 	list_add_tail(&client->node, &hnae3_client_list);  in hnae3_register_client()
141 	/* initialize the client on every matched port */  in hnae3_register_client()
143 		/* if the client could not be initialized on current port, for  in hnae3_register_client()
146 		int ret = hnae3_init_client_instance(client, ae_dev);  in hnae3_register_client()
148 			dev_err(&ae_dev->pdev->dev,  in hnae3_register_client()
160 void hnae3_unregister_client(struct hnae3_client *client)  in hnae3_unregister_client()  argument
166 	if (!client)  in hnae3_unregister_client()
170 	/* one system should only have one client for every type */  in hnae3_unregister_client()
172 		if (client_tmp->type == client->type) {  in hnae3_unregister_client()
180 		pr_err("client %s does not exist!\n", client->name);  in hnae3_unregister_client()
184 	/* un-initialize the client on every matched port */  in hnae3_unregister_client()
186 		hnae3_uninit_client_instance(client, ae_dev);  in hnae3_unregister_client()
189 	list_del(&client->node);  in hnae3_unregister_client()
194 /* hnae3_register_ae_algo - register a AE algorithm to hnae3 framework
200 	const struct pci_device_id *id;  in hnae3_register_ae_algo()  local
202 	struct hnae3_client *client;  in hnae3_register_ae_algo()  local
210 	list_add_tail(&ae_algo->node, &hnae3_ae_algo_list);  in hnae3_register_ae_algo()
214 		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);  in hnae3_register_ae_algo()
215 		if (!id)  in hnae3_register_ae_algo()
218 		if (!ae_algo->ops) {  in hnae3_register_ae_algo()
219 			dev_err(&ae_dev->pdev->dev, "ae_algo ops are null\n");  in hnae3_register_ae_algo()
222 		ae_dev->ops = ae_algo->ops;  in hnae3_register_ae_algo()
224 		ret = ae_algo->ops->init_ae_dev(ae_dev);  in hnae3_register_ae_algo()
226 			dev_err(&ae_dev->pdev->dev,  in hnae3_register_ae_algo()
232 		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 1);  in hnae3_register_ae_algo()
234 		/* check the client list for the match with this ae_dev type and  in hnae3_register_ae_algo()
235 		 * initialize the figure out client instance  in hnae3_register_ae_algo()
237 		list_for_each_entry(client, &hnae3_client_list, node) {  in hnae3_register_ae_algo()
238 			ret = hnae3_init_client_instance(client, ae_dev);  in hnae3_register_ae_algo()
240 				dev_err(&ae_dev->pdev->dev,  in hnae3_register_ae_algo()
250 /* hnae3_unregister_ae_algo - unregisters a AE algorithm
255 	const struct pci_device_id *id;  in hnae3_unregister_ae_algo()  local
257 	struct hnae3_client *client;  in hnae3_unregister_ae_algo()  local
265 		if (!hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))  in hnae3_unregister_ae_algo()
268 		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);  in hnae3_unregister_ae_algo()
269 		if (!id)  in hnae3_unregister_ae_algo()
272 		/* check the client list for the match with this ae_dev type and  in hnae3_unregister_ae_algo()
273 		 * un-initialize the figure out client instance  in hnae3_unregister_ae_algo()
275 		list_for_each_entry(client, &hnae3_client_list, node)  in hnae3_unregister_ae_algo()
276 			hnae3_uninit_client_instance(client, ae_dev);  in hnae3_unregister_ae_algo()
278 		ae_algo->ops->uninit_ae_dev(ae_dev);  in hnae3_unregister_ae_algo()
279 		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);  in hnae3_unregister_ae_algo()
280 		ae_dev->ops = NULL;  in hnae3_unregister_ae_algo()
283 	list_del(&ae_algo->node);  in hnae3_unregister_ae_algo()
288 /* hnae3_register_ae_dev - registers a AE device to hnae3 framework
294 	const struct pci_device_id *id;  in hnae3_register_ae_dev()  local
296 	struct hnae3_client *client;  in hnae3_register_ae_dev()  local
300 		return -ENODEV;  in hnae3_register_ae_dev()
304 	list_add_tail(&ae_dev->node, &hnae3_ae_dev_list);  in hnae3_register_ae_dev()
308 		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);  in hnae3_register_ae_dev()
309 		if (!id)  in hnae3_register_ae_dev()
312 		if (!ae_algo->ops) {  in hnae3_register_ae_dev()
313 			dev_err(&ae_dev->pdev->dev, "ae_algo ops are null\n");  in hnae3_register_ae_dev()
314 			ret = -EOPNOTSUPP;  in hnae3_register_ae_dev()
317 		ae_dev->ops = ae_algo->ops;  in hnae3_register_ae_dev()
319 		ret = ae_dev->ops->init_ae_dev(ae_dev);  in hnae3_register_ae_dev()
321 			dev_err(&ae_dev->pdev->dev,  in hnae3_register_ae_dev()
327 		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 1);  in hnae3_register_ae_dev()
331 	/* check the client list for the match with this ae_dev type and  in hnae3_register_ae_dev()
332 	 * initialize the figure out client instance  in hnae3_register_ae_dev()
334 	list_for_each_entry(client, &hnae3_client_list, node) {  in hnae3_register_ae_dev()
335 		ret = hnae3_init_client_instance(client, ae_dev);  in hnae3_register_ae_dev()
337 			dev_err(&ae_dev->pdev->dev,  in hnae3_register_ae_dev()
347 	list_del(&ae_dev->node);  in hnae3_register_ae_dev()
354 /* hnae3_unregister_ae_dev - unregisters a AE device
359 	const struct pci_device_id *id;  in hnae3_unregister_ae_dev()  local
361 	struct hnae3_client *client;  in hnae3_unregister_ae_dev()  local
369 		if (!hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))  in hnae3_unregister_ae_dev()
372 		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);  in hnae3_unregister_ae_dev()
373 		if (!id)  in hnae3_unregister_ae_dev()
376 		list_for_each_entry(client, &hnae3_client_list, node)  in hnae3_unregister_ae_dev()
377 			hnae3_uninit_client_instance(client, ae_dev);  in hnae3_unregister_ae_dev()
379 		ae_algo->ops->uninit_ae_dev(ae_dev);  in hnae3_unregister_ae_dev()
380 		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);  in hnae3_unregister_ae_dev()
381 		ae_dev->ops = NULL;  in hnae3_unregister_ae_dev()
384 	list_del(&ae_dev->node);  in hnae3_unregister_ae_dev()