2 * Copyright (C) 2017-2018 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
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30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/bug.h>
35 #include <linux/lockdep.h>
36 #include <linux/rcupdate.h>
37 #include <linux/skbuff.h>
38 #include <linux/slab.h>
40 #include "nfpcore/nfp_cpp.h"
41 #include "nfpcore/nfp_nffw.h"
45 #include "nfp_net_repr.h"
48 static const struct nfp_app_type *apps[] = {
49 [NFP_APP_CORE_NIC] = &app_nic,
50 #ifdef CONFIG_BPF_SYSCALL
51 [NFP_APP_BPF_NIC] = &app_bpf,
53 [NFP_APP_BPF_NIC] = &app_nic,
55 #ifdef CONFIG_NFP_APP_FLOWER
56 [NFP_APP_FLOWER_NIC] = &app_flower,
58 #ifdef CONFIG_NFP_APP_ABM_NIC
59 [NFP_APP_ACTIVE_BUFFER_MGMT_NIC] = &app_abm,
63 struct nfp_app *nfp_app_from_netdev(struct net_device *netdev)
65 if (nfp_netdev_is_nfp_net(netdev)) {
66 struct nfp_net *nn = netdev_priv(netdev);
71 if (nfp_netdev_is_nfp_repr(netdev)) {
72 struct nfp_repr *repr = netdev_priv(netdev);
77 WARN(1, "Unknown netdev type for nfp_app\n");
82 const char *nfp_app_mip_name(struct nfp_app *app)
84 if (!app || !app->pf->mip)
86 return nfp_mip_name(app->pf->mip);
89 int nfp_app_ndo_init(struct net_device *netdev)
91 struct nfp_app *app = nfp_app_from_netdev(netdev);
93 if (!app || !app->type->ndo_init)
95 return app->type->ndo_init(app, netdev);
98 void nfp_app_ndo_uninit(struct net_device *netdev)
100 struct nfp_app *app = nfp_app_from_netdev(netdev);
102 if (app && app->type->ndo_uninit)
103 app->type->ndo_uninit(app, netdev);
106 u64 *nfp_app_port_get_stats(struct nfp_port *port, u64 *data)
108 if (!port || !port->app || !port->app->type->port_get_stats)
110 return port->app->type->port_get_stats(port->app, port, data);
113 int nfp_app_port_get_stats_count(struct nfp_port *port)
115 if (!port || !port->app || !port->app->type->port_get_stats_count)
117 return port->app->type->port_get_stats_count(port->app, port);
120 u8 *nfp_app_port_get_stats_strings(struct nfp_port *port, u8 *data)
122 if (!port || !port->app || !port->app->type->port_get_stats_strings)
124 return port->app->type->port_get_stats_strings(port->app, port, data);
128 nfp_app_ctrl_msg_alloc(struct nfp_app *app, unsigned int size, gfp_t priority)
132 if (nfp_app_ctrl_has_meta(app))
135 skb = alloc_skb(size, priority);
139 if (nfp_app_ctrl_has_meta(app))
146 nfp_reprs_get_locked(struct nfp_app *app, enum nfp_repr_type type)
148 return rcu_dereference_protected(app->reprs[type],
149 lockdep_is_held(&app->pf->lock));
153 nfp_app_reprs_set(struct nfp_app *app, enum nfp_repr_type type,
154 struct nfp_reprs *reprs)
156 struct nfp_reprs *old;
158 old = nfp_reprs_get_locked(app, type);
159 rcu_assign_pointer(app->reprs[type], reprs);
164 struct nfp_app *nfp_app_alloc(struct nfp_pf *pf, enum nfp_app_id id)
168 if (id >= ARRAY_SIZE(apps) || !apps[id]) {
169 nfp_err(pf->cpp, "unknown FW app ID 0x%02hhx, driver too old or support for FW not built in\n", id);
170 return ERR_PTR(-EINVAL);
173 if (WARN_ON(!apps[id]->name || !apps[id]->vnic_alloc))
174 return ERR_PTR(-EINVAL);
175 if (WARN_ON(!apps[id]->ctrl_msg_rx && apps[id]->ctrl_msg_rx_raw))
176 return ERR_PTR(-EINVAL);
178 app = kzalloc(sizeof(*app), GFP_KERNEL);
180 return ERR_PTR(-ENOMEM);
184 app->pdev = pf->pdev;
185 app->type = apps[id];
190 void nfp_app_free(struct nfp_app *app)