2 * Copyright (C) 2017 Netronome Systems, Inc.
4 * This software is dual licensed under the GNU General License Version 2,
5 * June 1991 as shown in the file COPYING in the top-level directory of this
6 * source tree or the BSD 2-Clause License provided below. You have the
7 * option to license this software under the complete terms of either license.
9 * The BSD 2-Clause License:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * 1. Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * 2. Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/skbuff.h>
35 #include <linux/slab.h>
37 #include "nfpcore/nfp_cpp.h"
38 #include "nfpcore/nfp_nffw.h"
42 #include "nfp_net_repr.h"
44 static const struct nfp_app_type *apps[] = {
47 #ifdef CONFIG_NFP_APP_FLOWER
52 struct nfp_app *nfp_app_from_netdev(struct net_device *netdev)
54 if (nfp_netdev_is_nfp_net(netdev)) {
55 struct nfp_net *nn = netdev_priv(netdev);
60 if (nfp_netdev_is_nfp_repr(netdev)) {
61 struct nfp_repr *repr = netdev_priv(netdev);
66 WARN(1, "Unknown netdev type for nfp_app\n");
71 const char *nfp_app_mip_name(struct nfp_app *app)
73 if (!app || !app->pf->mip)
75 return nfp_mip_name(app->pf->mip);
79 nfp_app_ctrl_msg_alloc(struct nfp_app *app, unsigned int size, gfp_t priority)
83 if (nfp_app_ctrl_has_meta(app))
86 skb = alloc_skb(size, priority);
90 if (nfp_app_ctrl_has_meta(app))
97 nfp_app_reprs_set(struct nfp_app *app, enum nfp_repr_type type,
98 struct nfp_reprs *reprs)
100 struct nfp_reprs *old;
102 old = rcu_dereference_protected(app->reprs[type],
103 lockdep_is_held(&app->pf->lock));
105 old = ERR_PTR(-EBUSY);
109 rcu_assign_pointer(app->reprs[type], reprs);
115 struct nfp_app *nfp_app_alloc(struct nfp_pf *pf, enum nfp_app_id id)
120 for (i = 0; i < ARRAY_SIZE(apps); i++)
121 if (apps[i]->id == id)
123 if (i == ARRAY_SIZE(apps)) {
124 nfp_err(pf->cpp, "failed to find app with ID 0x%02hhx\n", id);
125 return ERR_PTR(-EINVAL);
128 if (WARN_ON(!apps[i]->name || !apps[i]->vnic_alloc))
129 return ERR_PTR(-EINVAL);
131 app = kzalloc(sizeof(*app), GFP_KERNEL);
133 return ERR_PTR(-ENOMEM);
137 app->pdev = pf->pdev;
143 void nfp_app_free(struct nfp_app *app)