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2024-05-11 297b60346df8beafee954a0fd7c2d64f33f3b9bc 
 kernel/drivers/net/ethernet/netronome/nfp/nfp_app.h
....@@ -1,35 +1,5 @@
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-/*
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- * Copyright (C) 2017 Netronome Systems, Inc.
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- *
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- * This software is dual licensed under the GNU General License Version 2,
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- * June 1991 as shown in the file COPYING in the top-level directory of this
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- * source tree or the BSD 2-Clause License provided below.  You have the
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- * option to license this software under the complete terms of either license.
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- *
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- * The BSD 2-Clause License:
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- *
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- *     Redistribution and use in source and binary forms, with or
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- *     without modification, are permitted provided that the following
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- *     conditions are met:
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- *
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- *      1. Redistributions of source code must retain the above
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- *         copyright notice, this list of conditions and the following
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- *         disclaimer.
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- *
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- *      2. Redistributions in binary form must reproduce the above
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- *         copyright notice, this list of conditions and the following
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- *         disclaimer in the documentation and/or other materials
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- *         provided with the distribution.
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- *
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- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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- * SOFTWARE.
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- */
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+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
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+/* Copyright (C) 2017-2018 Netronome Systems, Inc. */
333 
344 #ifndef _NFP_APP_H
355 #define _NFP_APP_H 1
....@@ -39,6 +9,8 @@
399 #include <trace/events/devlink.h>
4010 
4111 #include "nfp_net_repr.h"
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+
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+#define NFP_APP_CTRL_MTU_MAX	U32_MAX
4214 
4315 struct bpf_prog;
4416 struct net_device;
....@@ -97,6 +69,7 @@
9769  * @port_get_stats_strings:	get strings for extra statistics
9870  * @start:	start application logic
9971  * @stop:	stop application logic
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+ * @netdev_event:	Netdevice notifier event
10073  * @ctrl_msg_rx:    control message handler
10174  * @ctrl_msg_rx_raw:	handler for control messages from data queues
10275  * @setup_tc:	setup TC ndo
....@@ -106,7 +79,7 @@
10679  * @eswitch_mode_set:    set SR-IOV eswitch mode (under pf->lock)
10780  * @sriov_enable: app-specific sriov initialisation
10881  * @sriov_disable: app-specific sriov clean-up
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- * @repr_get:	get representor netdev
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+ * @dev_get:	get representor or internal port representing netdev
11083  */
11184 struct nfp_app_type {
11285 	enum nfp_app_id id;
....@@ -150,6 +123,9 @@
150123 	int (*start)(struct nfp_app *app);
151124 	void (*stop)(struct nfp_app *app);
152125 
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+	int (*netdev_event)(struct nfp_app *app, struct net_device *netdev,
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+			    unsigned long event, void *ptr);
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+
153129 	void (*ctrl_msg_rx)(struct nfp_app *app, struct sk_buff *skb);
154130 	void (*ctrl_msg_rx_raw)(struct nfp_app *app, const void *data,
155131 				unsigned int len);
....@@ -167,7 +143,8 @@
167143 
168144 	enum devlink_eswitch_mode (*eswitch_mode_get)(struct nfp_app *app);
169145 	int (*eswitch_mode_set)(struct nfp_app *app, u16 mode);
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-	struct net_device *(*repr_get)(struct nfp_app *app, u32 id);
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+	struct net_device *(*dev_get)(struct nfp_app *app, u32 id,
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+				      bool *redir_egress);
171148 };
172149 
173150 /**
....@@ -178,6 +155,8 @@
178155  * @ctrl:	pointer to ctrl vNIC struct
179156  * @reprs:	array of pointers to representors
180157  * @type:	pointer to const application ops and info
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+ * @ctrl_mtu:	MTU to set on the control vNIC (set in .init())
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+ * @netdev_nb:	Netdevice notifier block
181160  * @priv:	app-specific priv data
182161  */
183162 struct nfp_app {
....@@ -189,9 +168,14 @@
189168 	struct nfp_reprs __rcu *reprs[NFP_REPR_TYPE_MAX + 1];
190169 
191170 	const struct nfp_app_type *type;
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+	unsigned int ctrl_mtu;
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+
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+	struct notifier_block netdev_nb;
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+
192175 	void *priv;
193176 };
194177 
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+void nfp_check_rhashtable_empty(void *ptr, void *arg);
195179 bool __nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb);
196180 bool nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb);
197181 
....@@ -287,21 +271,6 @@
287271 	if (!app || !app->type->repr_change_mtu)
288272 		return 0;
289273 	return app->type->repr_change_mtu(app, netdev, new_mtu);
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-}
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-
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-static inline int nfp_app_start(struct nfp_app *app, struct nfp_net *ctrl)
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-{
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-	app->ctrl = ctrl;
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-	if (!app->type->start)
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-		return 0;
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-	return app->type->start(app);
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-}
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-
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-static inline void nfp_app_stop(struct nfp_app *app)
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-{
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-	if (!app->type->stop)
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-		return;
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-	app->type->stop(app);
305274 }
306275 
307276 static inline const char *nfp_app_name(struct nfp_app *app)
....@@ -429,12 +398,14 @@
429398 		app->type->sriov_disable(app);
430399 }
431400 
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-static inline struct net_device *nfp_app_repr_get(struct nfp_app *app, u32 id)
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+static inline
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+struct net_device *nfp_app_dev_get(struct nfp_app *app, u32 id,
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+				   bool *redir_egress)
433404 {
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-	if (unlikely(!app || !app->type->repr_get))
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+	if (unlikely(!app || !app->type->dev_get))
435406 		return NULL;
436407 
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-	return app->type->repr_get(app, id);
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+	return app->type->dev_get(app, id, redir_egress);
438409 }
439410 
440411 struct nfp_app *nfp_app_from_netdev(struct net_device *netdev);
....@@ -455,6 +426,8 @@
455426 
456427 struct nfp_app *nfp_app_alloc(struct nfp_pf *pf, enum nfp_app_id id);
457428 void nfp_app_free(struct nfp_app *app);
429
+int nfp_app_start(struct nfp_app *app, struct nfp_net *ctrl);
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+void nfp_app_stop(struct nfp_app *app);
458431 
459432 /* Callbacks shared between apps */
460433 
....@@ -463,4 +436,6 @@
463436 int nfp_app_nic_vnic_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
464437 				   struct nfp_net *nn, unsigned int id);
465438 
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+struct devlink_port *nfp_devlink_get_devlink_port(struct net_device *netdev);
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+
466441 #endif