18 nsim_do_psp(struct sk_buff *skb, struct netdevsim *ns,  in nsim_do_psp()  argument
21 	enum skb_drop_reason rc = 0;  in nsim_do_psp()
40 	if (*ptr != ns) {  in nsim_do_psp()
46 	if (!psp_dev_encapsulate(net, skb, pas->tx.spi, pas->version, 0)) {  in nsim_do_psp()
62 		generation = pas->tx.key[0];  in nsim_do_psp()
75 		u64_stats_update_begin(&ns->psp.syncp);  in nsim_do_psp()
76 		u64_stats_inc(&ns->psp.tx_packets);  in nsim_do_psp()
77 		u64_stats_inc(&ns->psp.rx_packets);  in nsim_do_psp()
78 		u64_stats_add(&ns->psp.tx_bytes,  in nsim_do_psp()
80 		u64_stats_add(&ns->psp.rx_bytes,  in nsim_do_psp()
82 		u64_stats_update_end(&ns->psp.syncp);  in nsim_do_psp()
91 		 * psp_dev_encapsulate() sets udp checksum to 0, so we need to  in nsim_do_psp()
96 				    ntohs(uh->len), 0);  in nsim_do_psp()
126 	return 0;  in nsim_psp_set_config()
134 	struct netdevsim *ns = psd->drv_priv;  in nsim_rx_spi_alloc()  local
138 	new = ++ns->psp.spi & PSP_SPI_KEY_ID;  in nsim_rx_spi_alloc()
143 	assoc->key[0] = psd->generation;  in nsim_rx_spi_alloc()
145 		assoc->key[i] = ns->psp.spi + i;  in nsim_rx_spi_alloc()
147 	return 0;  in nsim_rx_spi_alloc()
153 	struct netdevsim *ns = psd->drv_priv;  in nsim_assoc_add()  local
158 	ns->psp.assoc_cnt++;  in nsim_assoc_add()
160 	return 0;  in nsim_assoc_add()
165 	return 0;  in nsim_key_rotate()
170 	struct netdevsim *ns = psd->drv_priv;  in nsim_assoc_del()  local
174 	ns->psp.assoc_cnt--;  in nsim_assoc_del()
179 	struct netdevsim *ns = psd->drv_priv;  in nsim_get_stats()  local
185 	memset(stats, 0, sizeof(struct psp_dev_stats));  in nsim_get_stats()
188 		start = u64_stats_fetch_begin(&ns->psp.syncp);  in nsim_get_stats()
189 		stats->rx_bytes = u64_stats_read(&ns->psp.rx_bytes);  in nsim_get_stats()
190 		stats->rx_packets = u64_stats_read(&ns->psp.rx_packets);  in nsim_get_stats()
191 		stats->tx_bytes = u64_stats_read(&ns->psp.tx_bytes);  in nsim_get_stats()
192 		stats->tx_packets = u64_stats_read(&ns->psp.tx_packets);  in nsim_get_stats()
193 	} while (u64_stats_fetch_retry(&ns->psp.syncp, start));  in nsim_get_stats()
213 static void __nsim_psp_uninit(struct netdevsim *ns, bool teardown)  in __nsim_psp_uninit()  argument
217 	psd = rcu_dereference_protected(ns->psp.dev,  in __nsim_psp_uninit()
219 					lockdep_is_held(&ns->psp.rereg_lock));  in __nsim_psp_uninit()
221 		rcu_assign_pointer(ns->psp.dev, NULL);  in __nsim_psp_uninit()
225 	WARN_ON(ns->psp.assoc_cnt);  in __nsim_psp_uninit()
228 void nsim_psp_uninit(struct netdevsim *ns)  in nsim_psp_uninit()  argument
230 	debugfs_remove(ns->psp.rereg);  in nsim_psp_uninit()
231 	mutex_destroy(&ns->psp.rereg_lock);  in nsim_psp_uninit()
232 	__nsim_psp_uninit(ns, true);  in nsim_psp_uninit()
239 	struct netdevsim *ns = file->private_data;  in nsim_psp_rereg_write()  local
243 	mutex_lock(&ns->psp.rereg_lock);  in nsim_psp_rereg_write()
244 	__nsim_psp_uninit(ns, false);  in nsim_psp_rereg_write()
246 	psd = psp_dev_create(ns->netdev, &nsim_psp_ops, &nsim_psp_caps, ns);  in nsim_psp_rereg_write()
252 	rcu_assign_pointer(ns->psp.dev, psd);  in nsim_psp_rereg_write()
255 	mutex_unlock(&ns->psp.rereg_lock);  in nsim_psp_rereg_write()
266 int nsim_psp_init(struct netdevsim *ns)  in nsim_psp_init()  argument
268 	struct dentry *ddir = ns->nsim_dev_port->ddir;  in nsim_psp_init()
271 	psd = psp_dev_create(ns->netdev, &nsim_psp_ops, &nsim_psp_caps, ns);  in nsim_psp_init()
275 	rcu_assign_pointer(ns->psp.dev, psd);  in nsim_psp_init()
277 	mutex_init(&ns->psp.rereg_lock);  in nsim_psp_init()
278 	ns->psp.rereg = debugfs_create_file("psp_rereg", 0200, ddir, ns,  in nsim_psp_init()
280 	return 0;  in nsim_psp_init()