From 071106ecf68c401173c58808b1cf5f68cc50d390 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 05 Jan 2024 08:39:27 +0000
Subject: [PATCH] change wifi driver to cypress
---
kernel/drivers/net/ethernet/netronome/nfp/nfp_app.c | 128 ++++++++++++++++++++++++++++++++----------
1 files changed, 96 insertions(+), 32 deletions(-)
diff --git a/kernel/drivers/net/ethernet/netronome/nfp/nfp_app.c b/kernel/drivers/net/ethernet/netronome/nfp/nfp_app.c
index 8607d09..3a97328 100644
--- a/kernel/drivers/net/ethernet/netronome/nfp/nfp_app.c
+++ b/kernel/drivers/net/ethernet/netronome/nfp/nfp_app.c
@@ -1,35 +1,5 @@
-/*
- * Copyright (C) 2017-2018 Netronome Systems, Inc.
- *
- * This software is dual licensed under the GNU General License Version 2,
- * June 1991 as shown in the file COPYING in the top-level directory of this
- * source tree or the BSD 2-Clause License provided below. You have the
- * option to license this software under the complete terms of either license.
- *
- * The BSD 2-Clause License:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * 1. Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/* Copyright (C) 2017-2018 Netronome Systems, Inc. */
#include <linux/bug.h>
#include <linux/lockdep.h>
@@ -59,6 +29,11 @@
[NFP_APP_ACTIVE_BUFFER_MGMT_NIC] = &app_abm,
#endif
};
+
+void nfp_check_rhashtable_empty(void *ptr, void *arg)
+{
+ WARN_ON_ONCE(1);
+}
struct nfp_app *nfp_app_from_netdev(struct net_device *netdev)
{
@@ -156,11 +131,100 @@
struct nfp_reprs *old;
old = nfp_reprs_get_locked(app, type);
+ rtnl_lock();
rcu_assign_pointer(app->reprs[type], reprs);
+ rtnl_unlock();
return old;
}
+static void
+nfp_app_netdev_feat_change(struct nfp_app *app, struct net_device *netdev)
+{
+ struct nfp_net *nn;
+ unsigned int type;
+
+ if (!nfp_netdev_is_nfp_net(netdev))
+ return;
+ nn = netdev_priv(netdev);
+ if (nn->app != app)
+ return;
+
+ for (type = 0; type < __NFP_REPR_TYPE_MAX; type++) {
+ struct nfp_reprs *reprs;
+ unsigned int i;
+
+ reprs = rtnl_dereference(app->reprs[type]);
+ if (!reprs)
+ continue;
+
+ for (i = 0; i < reprs->num_reprs; i++) {
+ struct net_device *repr;
+
+ repr = rtnl_dereference(reprs->reprs[i]);
+ if (!repr)
+ continue;
+
+ nfp_repr_transfer_features(repr, netdev);
+ }
+ }
+}
+
+static int
+nfp_app_netdev_event(struct notifier_block *nb, unsigned long event, void *ptr)
+{
+ struct net_device *netdev;
+ struct nfp_app *app;
+
+ netdev = netdev_notifier_info_to_dev(ptr);
+ app = container_of(nb, struct nfp_app, netdev_nb);
+
+ /* Handle events common code is interested in */
+ switch (event) {
+ case NETDEV_FEAT_CHANGE:
+ nfp_app_netdev_feat_change(app, netdev);
+ break;
+ }
+
+ /* Call offload specific handlers */
+ if (app->type->netdev_event)
+ return app->type->netdev_event(app, netdev, event, ptr);
+ return NOTIFY_DONE;
+}
+
+int nfp_app_start(struct nfp_app *app, struct nfp_net *ctrl)
+{
+ int err;
+
+ app->ctrl = ctrl;
+
+ if (app->type->start) {
+ err = app->type->start(app);
+ if (err)
+ return err;
+ }
+
+ app->netdev_nb.notifier_call = nfp_app_netdev_event;
+ err = register_netdevice_notifier(&app->netdev_nb);
+ if (err)
+ goto err_app_stop;
+
+ return 0;
+
+err_app_stop:
+ if (app->type->stop)
+ app->type->stop(app);
+ return err;
+}
+
+void nfp_app_stop(struct nfp_app *app)
+{
+ unregister_netdevice_notifier(&app->netdev_nb);
+
+ if (app->type->stop)
+ app->type->stop(app);
+}
+
struct nfp_app *nfp_app_alloc(struct nfp_pf *pf, enum nfp_app_id id)
{
struct nfp_app *app;
--
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