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 			device_lock(&ae_dev->pdev->dev);  in hnae3_unregister_ae_algo_prepare()
30 			pci_disable_sriov(ae_dev->pdev);  in hnae3_unregister_ae_algo_prepare()
31 			device_unlock(&ae_dev->pdev->dev);  in hnae3_unregister_ae_algo_prepare()
38  * list. This is a non-critical code so other updations, if happen
67 void hnae3_set_client_init_flag(struct hnae3_client *client,  in hnae3_set_client_init_flag()  argument
71 	if (!client || !ae_dev)  in hnae3_set_client_init_flag()
74 	switch (client->type) {  in hnae3_set_client_init_flag()
76 		hnae3_set_bit(ae_dev->flag, HNAE3_KNIC_CLIENT_INITED_B, inited);  in hnae3_set_client_init_flag()
79 		hnae3_set_bit(ae_dev->flag, HNAE3_ROCE_CLIENT_INITED_B, inited);  in hnae3_set_client_init_flag()
87 static int hnae3_get_client_init_flag(struct hnae3_client *client,  in hnae3_get_client_init_flag()  argument
92 	switch (client->type) {  in hnae3_get_client_init_flag()
94 		inited = hnae3_get_bit(ae_dev->flag,  in hnae3_get_client_init_flag()
98 		inited = hnae3_get_bit(ae_dev->flag,  in hnae3_get_client_init_flag()
108 static int hnae3_init_client_instance(struct hnae3_client *client,  in hnae3_init_client_instance()  argument
113 	/* check if this client matches the type of ae_dev */  in hnae3_init_client_instance()
114 	if (!(hnae3_client_match(client->type) &&  in hnae3_init_client_instance()
115 	      hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))) {  in hnae3_init_client_instance()
119 	ret = ae_dev->ops->init_client_instance(client, ae_dev);  in hnae3_init_client_instance()
121 		dev_err(&ae_dev->pdev->dev,  in hnae3_init_client_instance()
122 			"fail to instantiate client, ret = %d\n", ret);  in hnae3_init_client_instance()
127 static void hnae3_uninit_client_instance(struct hnae3_client *client,  in hnae3_uninit_client_instance()  argument
130 	/* check if this client matches the type of ae_dev */  in hnae3_uninit_client_instance()
131 	if (!(hnae3_client_match(client->type) &&  in hnae3_uninit_client_instance()
132 	      hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B)))  in hnae3_uninit_client_instance()
135 	if (hnae3_get_client_init_flag(client, ae_dev)) {  in hnae3_uninit_client_instance()
136 		ae_dev->ops->uninit_client_instance(client, ae_dev);  in hnae3_uninit_client_instance()
138 		hnae3_set_client_init_flag(client, ae_dev, 0);  in hnae3_uninit_client_instance()
142 int hnae3_register_client(struct hnae3_client *client)  in hnae3_register_client()  argument
147 	if (!client)  in hnae3_register_client()
148 		return -ENODEV;  in hnae3_register_client()
151 	/* one system should only have one client for every type */  in hnae3_register_client()
153 		if (client_tmp->type == client->type)  in hnae3_register_client()
157 	list_add_tail(&client->node, &hnae3_client_list);  in hnae3_register_client()
159 	/* initialize the client on every matched port */  in hnae3_register_client()
161 		/* if the client could not be initialized on current port, for  in hnae3_register_client()
164 		int ret = hnae3_init_client_instance(client, ae_dev);  in hnae3_register_client()
166 			dev_err(&ae_dev->pdev->dev,  in hnae3_register_client()
178 void hnae3_unregister_client(struct hnae3_client *client)  in hnae3_unregister_client()  argument
184 	if (!client)  in hnae3_unregister_client()
188 	/* one system should only have one client for every type */  in hnae3_unregister_client()
190 		if (client_tmp->type == client->type) {  in hnae3_unregister_client()
198 		pr_err("client %s does not exist!\n", client->name);  in hnae3_unregister_client()
202 	/* un-initialize the client on every matched port */  in hnae3_unregister_client()
204 		hnae3_uninit_client_instance(client, ae_dev);  in hnae3_unregister_client()
207 	list_del(&client->node);  in hnae3_unregister_client()
212 /* hnae3_register_ae_algo - register a AE algorithm to hnae3 framework
218 	const struct pci_device_id *id;  in hnae3_register_ae_algo()  local
220 	struct hnae3_client *client;  in hnae3_register_ae_algo()  local
228 	list_add_tail(&ae_algo->node, &hnae3_ae_algo_list);  in hnae3_register_ae_algo()
232 		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);  in hnae3_register_ae_algo()
233 		if (!id)  in hnae3_register_ae_algo()
236 		if (!ae_algo->ops) {  in hnae3_register_ae_algo()
237 			dev_err(&ae_dev->pdev->dev, "ae_algo ops are null\n");  in hnae3_register_ae_algo()
240 		ae_dev->ops = ae_algo->ops;  in hnae3_register_ae_algo()
242 		ret = ae_algo->ops->init_ae_dev(ae_dev);  in hnae3_register_ae_algo()
244 			dev_err(&ae_dev->pdev->dev,  in hnae3_register_ae_algo()
250 		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 1);  in hnae3_register_ae_algo()
252 		/* check the client list for the match with this ae_dev type and  in hnae3_register_ae_algo()
253 		 * initialize the figure out client instance  in hnae3_register_ae_algo()
255 		list_for_each_entry(client, &hnae3_client_list, node) {  in hnae3_register_ae_algo()
256 			ret = hnae3_init_client_instance(client, ae_dev);  in hnae3_register_ae_algo()
258 				dev_err(&ae_dev->pdev->dev,  in hnae3_register_ae_algo()
268 /* hnae3_unregister_ae_algo - unregisters a AE algorithm
273 	const struct pci_device_id *id;  in hnae3_unregister_ae_algo()  local
275 	struct hnae3_client *client;  in hnae3_unregister_ae_algo()  local
283 		if (!hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))  in hnae3_unregister_ae_algo()
286 		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);  in hnae3_unregister_ae_algo()
287 		if (!id)  in hnae3_unregister_ae_algo()
290 		/* check the client list for the match with this ae_dev type and  in hnae3_unregister_ae_algo()
291 		 * un-initialize the figure out client instance  in hnae3_unregister_ae_algo()
293 		list_for_each_entry(client, &hnae3_client_list, node)  in hnae3_unregister_ae_algo()
294 			hnae3_uninit_client_instance(client, ae_dev);  in hnae3_unregister_ae_algo()
296 		ae_algo->ops->uninit_ae_dev(ae_dev);  in hnae3_unregister_ae_algo()
297 		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);  in hnae3_unregister_ae_algo()
298 		ae_dev->ops = NULL;  in hnae3_unregister_ae_algo()
301 	list_del(&ae_algo->node);  in hnae3_unregister_ae_algo()
306 /* hnae3_register_ae_dev - registers a AE device to hnae3 framework
312 	const struct pci_device_id *id;  in hnae3_register_ae_dev()  local
314 	struct hnae3_client *client;  in hnae3_register_ae_dev()  local
318 		return -ENODEV;  in hnae3_register_ae_dev()
322 	list_add_tail(&ae_dev->node, &hnae3_ae_dev_list);  in hnae3_register_ae_dev()
326 		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);  in hnae3_register_ae_dev()
327 		if (!id)  in hnae3_register_ae_dev()
330 		if (!ae_algo->ops) {  in hnae3_register_ae_dev()
331 			dev_err(&ae_dev->pdev->dev, "ae_algo ops are null\n");  in hnae3_register_ae_dev()
332 			ret = -EOPNOTSUPP;  in hnae3_register_ae_dev()
335 		ae_dev->ops = ae_algo->ops;  in hnae3_register_ae_dev()
337 		ret = ae_dev->ops->init_ae_dev(ae_dev);  in hnae3_register_ae_dev()
339 			dev_err(&ae_dev->pdev->dev,  in hnae3_register_ae_dev()
345 		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 1);  in hnae3_register_ae_dev()
349 	/* check the client list for the match with this ae_dev type and  in hnae3_register_ae_dev()
350 	 * initialize the figure out client instance  in hnae3_register_ae_dev()
352 	list_for_each_entry(client, &hnae3_client_list, node) {  in hnae3_register_ae_dev()
353 		ret = hnae3_init_client_instance(client, ae_dev);  in hnae3_register_ae_dev()
355 			dev_err(&ae_dev->pdev->dev,  in hnae3_register_ae_dev()
365 	list_del(&ae_dev->node);  in hnae3_register_ae_dev()
372 /* hnae3_unregister_ae_dev - unregisters a AE device
377 	const struct pci_device_id *id;  in hnae3_unregister_ae_dev()  local
379 	struct hnae3_client *client;  in hnae3_unregister_ae_dev()  local
387 		if (!hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))  in hnae3_unregister_ae_dev()
390 		id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);  in hnae3_unregister_ae_dev()
391 		if (!id)  in hnae3_unregister_ae_dev()
394 		list_for_each_entry(client, &hnae3_client_list, node)  in hnae3_unregister_ae_dev()
395 			hnae3_uninit_client_instance(client, ae_dev);  in hnae3_unregister_ae_dev()
397 		ae_algo->ops->uninit_ae_dev(ae_dev);  in hnae3_unregister_ae_dev()
398 		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);  in hnae3_unregister_ae_dev()
399 		ae_dev->ops = NULL;  in hnae3_unregister_ae_dev()
402 	list_del(&ae_dev->node);  in hnae3_unregister_ae_dev()