1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 /* Copyright (C) 2017-2018 Netronome Systems, Inc. */
5 #include <linux/lockdep.h>
6 #include <linux/rcupdate.h>
7 #include <linux/skbuff.h>
8 #include <linux/slab.h>
10 #include "nfpcore/nfp_cpp.h"
11 #include "nfpcore/nfp_nffw.h"
15 #include "nfp_net_repr.h"
18 static const struct nfp_app_type *apps[] = {
19 [NFP_APP_CORE_NIC] = &app_nic,
20 #ifdef CONFIG_BPF_SYSCALL
21 [NFP_APP_BPF_NIC] = &app_bpf,
23 [NFP_APP_BPF_NIC] = &app_nic,
25 #ifdef CONFIG_NFP_APP_FLOWER
26 [NFP_APP_FLOWER_NIC] = &app_flower,
28 #ifdef CONFIG_NFP_APP_ABM_NIC
29 [NFP_APP_ACTIVE_BUFFER_MGMT_NIC] = &app_abm,
33 void nfp_check_rhashtable_empty(void *ptr, void *arg)
38 struct nfp_app *nfp_app_from_netdev(struct net_device *netdev)
40 if (nfp_netdev_is_nfp_net(netdev)) {
41 struct nfp_net *nn = netdev_priv(netdev);
46 if (nfp_netdev_is_nfp_repr(netdev)) {
47 struct nfp_repr *repr = netdev_priv(netdev);
52 WARN(1, "Unknown netdev type for nfp_app\n");
57 const char *nfp_app_mip_name(struct nfp_app *app)
59 if (!app || !app->pf->mip)
61 return nfp_mip_name(app->pf->mip);
64 int nfp_app_ndo_init(struct net_device *netdev)
66 struct nfp_app *app = nfp_app_from_netdev(netdev);
68 if (!app || !app->type->ndo_init)
70 return app->type->ndo_init(app, netdev);
73 void nfp_app_ndo_uninit(struct net_device *netdev)
75 struct nfp_app *app = nfp_app_from_netdev(netdev);
77 if (app && app->type->ndo_uninit)
78 app->type->ndo_uninit(app, netdev);
81 u64 *nfp_app_port_get_stats(struct nfp_port *port, u64 *data)
83 if (!port || !port->app || !port->app->type->port_get_stats)
85 return port->app->type->port_get_stats(port->app, port, data);
88 int nfp_app_port_get_stats_count(struct nfp_port *port)
90 if (!port || !port->app || !port->app->type->port_get_stats_count)
92 return port->app->type->port_get_stats_count(port->app, port);
95 u8 *nfp_app_port_get_stats_strings(struct nfp_port *port, u8 *data)
97 if (!port || !port->app || !port->app->type->port_get_stats_strings)
99 return port->app->type->port_get_stats_strings(port->app, port, data);
103 nfp_app_ctrl_msg_alloc(struct nfp_app *app, unsigned int size, gfp_t priority)
107 if (nfp_app_ctrl_has_meta(app))
110 skb = alloc_skb(size, priority);
114 if (nfp_app_ctrl_has_meta(app))
121 nfp_reprs_get_locked(struct nfp_app *app, enum nfp_repr_type type)
123 return rcu_dereference_protected(app->reprs[type],
124 lockdep_is_held(&app->pf->lock));
128 nfp_app_reprs_set(struct nfp_app *app, enum nfp_repr_type type,
129 struct nfp_reprs *reprs)
131 struct nfp_reprs *old;
133 old = nfp_reprs_get_locked(app, type);
134 rcu_assign_pointer(app->reprs[type], reprs);
139 struct nfp_app *nfp_app_alloc(struct nfp_pf *pf, enum nfp_app_id id)
143 if (id >= ARRAY_SIZE(apps) || !apps[id]) {
144 nfp_err(pf->cpp, "unknown FW app ID 0x%02hhx, driver too old or support for FW not built in\n", id);
145 return ERR_PTR(-EINVAL);
148 if (WARN_ON(!apps[id]->name || !apps[id]->vnic_alloc))
149 return ERR_PTR(-EINVAL);
150 if (WARN_ON(!apps[id]->ctrl_msg_rx && apps[id]->ctrl_msg_rx_raw))
151 return ERR_PTR(-EINVAL);
153 app = kzalloc(sizeof(*app), GFP_KERNEL);
155 return ERR_PTR(-ENOMEM);
159 app->pdev = pf->pdev;
160 app->type = apps[id];
165 void nfp_app_free(struct nfp_app *app)