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
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12 * without modification, are permitted provided that the following
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19 * 2. Redistributions in binary form must reproduce the above
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22 * provided with the distribution.
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37 #include <net/devlink.h>
39 #include <trace/events/devlink.h>
41 #include "nfp_net_repr.h"
46 struct netlink_ext_ack;
57 NFP_APP_CORE_NIC = 0x1,
58 NFP_APP_BPF_NIC = 0x2,
59 NFP_APP_FLOWER_NIC = 0x3,
60 NFP_APP_ACTIVE_BUFFER_MGMT_NIC = 0x4,
63 extern const struct nfp_app_type app_nic;
64 extern const struct nfp_app_type app_bpf;
65 extern const struct nfp_app_type app_flower;
66 extern const struct nfp_app_type app_abm;
69 * struct nfp_app_type - application definition
71 * @name: application name
72 * @ctrl_cap_mask: ctrl vNIC capability mask, allows disabling features like
73 * IRQMOD which are on by default but counter-productive for
74 * control messages which are often latency-sensitive
75 * @ctrl_has_meta: control messages have prepend of type:5/port:CTRL
78 * @init: perform basic app checks and init
79 * @clean: clean app state
80 * @extra_cap: extra capabilities string
81 * @ndo_init: vNIC and repr netdev .ndo_init
82 * @ndo_uninit: vNIC and repr netdev .ndo_unint
83 * @vnic_alloc: allocate vNICs (assign port types, etc.)
84 * @vnic_free: free up app's vNIC state
85 * @vnic_init: vNIC netdev was registered
86 * @vnic_clean: vNIC netdev about to be unregistered
87 * @repr_init: representor about to be registered
88 * @repr_preclean: representor about to unregistered, executed before app
89 * reference to the it is removed
90 * @repr_clean: representor about to be unregistered
91 * @repr_open: representor netdev open callback
92 * @repr_stop: representor netdev stop callback
93 * @check_mtu: MTU change request on a netdev (verify it is valid)
94 * @repr_change_mtu: MTU change request on repr (make and verify change)
95 * @port_get_stats: get extra ethtool statistics for a port
96 * @port_get_stats_count: get count of extra statistics for a port
97 * @port_get_stats_strings: get strings for extra statistics
98 * @start: start application logic
99 * @stop: stop application logic
100 * @ctrl_msg_rx: control message handler
101 * @ctrl_msg_rx_raw: handler for control messages from data queues
102 * @setup_tc: setup TC ndo
103 * @bpf: BPF ndo offload-related calls
104 * @xdp_offload: offload an XDP program
105 * @eswitch_mode_get: get SR-IOV eswitch mode
106 * @eswitch_mode_set: set SR-IOV eswitch mode (under pf->lock)
107 * @sriov_enable: app-specific sriov initialisation
108 * @sriov_disable: app-specific sriov clean-up
109 * @repr_get: get representor netdev
111 struct nfp_app_type {
118 int (*init)(struct nfp_app *app);
119 void (*clean)(struct nfp_app *app);
121 const char *(*extra_cap)(struct nfp_app *app, struct nfp_net *nn);
123 int (*ndo_init)(struct nfp_app *app, struct net_device *netdev);
124 void (*ndo_uninit)(struct nfp_app *app, struct net_device *netdev);
126 int (*vnic_alloc)(struct nfp_app *app, struct nfp_net *nn,
128 void (*vnic_free)(struct nfp_app *app, struct nfp_net *nn);
129 int (*vnic_init)(struct nfp_app *app, struct nfp_net *nn);
130 void (*vnic_clean)(struct nfp_app *app, struct nfp_net *nn);
132 int (*repr_init)(struct nfp_app *app, struct net_device *netdev);
133 void (*repr_preclean)(struct nfp_app *app, struct net_device *netdev);
134 void (*repr_clean)(struct nfp_app *app, struct net_device *netdev);
136 int (*repr_open)(struct nfp_app *app, struct nfp_repr *repr);
137 int (*repr_stop)(struct nfp_app *app, struct nfp_repr *repr);
139 int (*check_mtu)(struct nfp_app *app, struct net_device *netdev,
141 int (*repr_change_mtu)(struct nfp_app *app, struct net_device *netdev,
144 u64 *(*port_get_stats)(struct nfp_app *app,
145 struct nfp_port *port, u64 *data);
146 int (*port_get_stats_count)(struct nfp_app *app, struct nfp_port *port);
147 u8 *(*port_get_stats_strings)(struct nfp_app *app,
148 struct nfp_port *port, u8 *data);
150 int (*start)(struct nfp_app *app);
151 void (*stop)(struct nfp_app *app);
153 void (*ctrl_msg_rx)(struct nfp_app *app, struct sk_buff *skb);
154 void (*ctrl_msg_rx_raw)(struct nfp_app *app, const void *data,
157 int (*setup_tc)(struct nfp_app *app, struct net_device *netdev,
158 enum tc_setup_type type, void *type_data);
159 int (*bpf)(struct nfp_app *app, struct nfp_net *nn,
160 struct netdev_bpf *xdp);
161 int (*xdp_offload)(struct nfp_app *app, struct nfp_net *nn,
162 struct bpf_prog *prog,
163 struct netlink_ext_ack *extack);
165 int (*sriov_enable)(struct nfp_app *app, int num_vfs);
166 void (*sriov_disable)(struct nfp_app *app);
168 enum devlink_eswitch_mode (*eswitch_mode_get)(struct nfp_app *app);
169 int (*eswitch_mode_set)(struct nfp_app *app, u16 mode);
170 struct net_device *(*repr_get)(struct nfp_app *app, u32 id);
174 * struct nfp_app - NFP application container
175 * @pdev: backpointer to PCI device
176 * @pf: backpointer to NFP PF structure
177 * @cpp: pointer to the CPP handle
178 * @ctrl: pointer to ctrl vNIC struct
179 * @reprs: array of pointers to representors
180 * @type: pointer to const application ops and info
181 * @priv: app-specific priv data
184 struct pci_dev *pdev;
188 struct nfp_net *ctrl;
189 struct nfp_reprs __rcu *reprs[NFP_REPR_TYPE_MAX + 1];
191 const struct nfp_app_type *type;
195 bool __nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb);
196 bool nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb);
198 static inline int nfp_app_init(struct nfp_app *app)
200 if (!app->type->init)
202 return app->type->init(app);
205 static inline void nfp_app_clean(struct nfp_app *app)
207 if (app->type->clean)
208 app->type->clean(app);
211 int nfp_app_ndo_init(struct net_device *netdev);
212 void nfp_app_ndo_uninit(struct net_device *netdev);
214 static inline int nfp_app_vnic_alloc(struct nfp_app *app, struct nfp_net *nn,
217 return app->type->vnic_alloc(app, nn, id);
220 static inline void nfp_app_vnic_free(struct nfp_app *app, struct nfp_net *nn)
222 if (app->type->vnic_free)
223 app->type->vnic_free(app, nn);
226 static inline int nfp_app_vnic_init(struct nfp_app *app, struct nfp_net *nn)
228 if (!app->type->vnic_init)
230 return app->type->vnic_init(app, nn);
233 static inline void nfp_app_vnic_clean(struct nfp_app *app, struct nfp_net *nn)
235 if (app->type->vnic_clean)
236 app->type->vnic_clean(app, nn);
239 static inline int nfp_app_repr_open(struct nfp_app *app, struct nfp_repr *repr)
241 if (!app->type->repr_open)
243 return app->type->repr_open(app, repr);
246 static inline int nfp_app_repr_stop(struct nfp_app *app, struct nfp_repr *repr)
248 if (!app->type->repr_stop)
250 return app->type->repr_stop(app, repr);
254 nfp_app_repr_init(struct nfp_app *app, struct net_device *netdev)
256 if (!app->type->repr_init)
258 return app->type->repr_init(app, netdev);
262 nfp_app_repr_preclean(struct nfp_app *app, struct net_device *netdev)
264 if (app->type->repr_preclean)
265 app->type->repr_preclean(app, netdev);
269 nfp_app_repr_clean(struct nfp_app *app, struct net_device *netdev)
271 if (app->type->repr_clean)
272 app->type->repr_clean(app, netdev);
276 nfp_app_check_mtu(struct nfp_app *app, struct net_device *netdev, int new_mtu)
278 if (!app || !app->type->check_mtu)
280 return app->type->check_mtu(app, netdev, new_mtu);
284 nfp_app_repr_change_mtu(struct nfp_app *app, struct net_device *netdev,
287 if (!app || !app->type->repr_change_mtu)
289 return app->type->repr_change_mtu(app, netdev, new_mtu);
292 static inline int nfp_app_start(struct nfp_app *app, struct nfp_net *ctrl)
295 if (!app->type->start)
297 return app->type->start(app);
300 static inline void nfp_app_stop(struct nfp_app *app)
302 if (!app->type->stop)
304 app->type->stop(app);
307 static inline const char *nfp_app_name(struct nfp_app *app)
311 return app->type->name;
314 static inline bool nfp_app_needs_ctrl_vnic(struct nfp_app *app)
316 return app && app->type->ctrl_msg_rx;
319 static inline bool nfp_app_ctrl_has_meta(struct nfp_app *app)
321 return app->type->ctrl_has_meta;
324 static inline bool nfp_app_ctrl_uses_data_vnics(struct nfp_app *app)
326 return app && app->type->ctrl_msg_rx_raw;
329 static inline const char *nfp_app_extra_cap(struct nfp_app *app,
332 if (!app || !app->type->extra_cap)
334 return app->type->extra_cap(app, nn);
337 static inline bool nfp_app_has_tc(struct nfp_app *app)
339 return app && app->type->setup_tc;
342 static inline int nfp_app_setup_tc(struct nfp_app *app,
343 struct net_device *netdev,
344 enum tc_setup_type type, void *type_data)
346 if (!app || !app->type->setup_tc)
348 return app->type->setup_tc(app, netdev, type, type_data);
351 static inline int nfp_app_bpf(struct nfp_app *app, struct nfp_net *nn,
352 struct netdev_bpf *bpf)
354 if (!app || !app->type->bpf)
356 return app->type->bpf(app, nn, bpf);
359 static inline int nfp_app_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
360 struct bpf_prog *prog,
361 struct netlink_ext_ack *extack)
363 if (!app || !app->type->xdp_offload)
365 return app->type->xdp_offload(app, nn, prog, extack);
368 static inline bool __nfp_app_ctrl_tx(struct nfp_app *app, struct sk_buff *skb)
370 trace_devlink_hwmsg(priv_to_devlink(app->pf), false, 0,
371 skb->data, skb->len);
373 return __nfp_ctrl_tx(app->ctrl, skb);
376 static inline bool nfp_app_ctrl_tx(struct nfp_app *app, struct sk_buff *skb)
378 trace_devlink_hwmsg(priv_to_devlink(app->pf), false, 0,
379 skb->data, skb->len);
381 return nfp_ctrl_tx(app->ctrl, skb);
384 static inline void nfp_app_ctrl_rx(struct nfp_app *app, struct sk_buff *skb)
386 trace_devlink_hwmsg(priv_to_devlink(app->pf), true, 0,
387 skb->data, skb->len);
389 app->type->ctrl_msg_rx(app, skb);
393 nfp_app_ctrl_rx_raw(struct nfp_app *app, const void *data, unsigned int len)
395 if (!app || !app->type->ctrl_msg_rx_raw)
398 trace_devlink_hwmsg(priv_to_devlink(app->pf), true, 0, data, len);
399 app->type->ctrl_msg_rx_raw(app, data, len);
402 static inline int nfp_app_eswitch_mode_get(struct nfp_app *app, u16 *mode)
404 if (!app->type->eswitch_mode_get)
407 *mode = app->type->eswitch_mode_get(app);
412 static inline int nfp_app_eswitch_mode_set(struct nfp_app *app, u16 mode)
414 if (!app->type->eswitch_mode_set)
416 return app->type->eswitch_mode_set(app, mode);
419 static inline int nfp_app_sriov_enable(struct nfp_app *app, int num_vfs)
421 if (!app || !app->type->sriov_enable)
423 return app->type->sriov_enable(app, num_vfs);
426 static inline void nfp_app_sriov_disable(struct nfp_app *app)
428 if (app && app->type->sriov_disable)
429 app->type->sriov_disable(app);
432 static inline struct net_device *nfp_app_repr_get(struct nfp_app *app, u32 id)
434 if (unlikely(!app || !app->type->repr_get))
437 return app->type->repr_get(app, id);
440 struct nfp_app *nfp_app_from_netdev(struct net_device *netdev);
442 u64 *nfp_app_port_get_stats(struct nfp_port *port, u64 *data);
443 int nfp_app_port_get_stats_count(struct nfp_port *port);
444 u8 *nfp_app_port_get_stats_strings(struct nfp_port *port, u8 *data);
447 nfp_reprs_get_locked(struct nfp_app *app, enum nfp_repr_type type);
449 nfp_app_reprs_set(struct nfp_app *app, enum nfp_repr_type type,
450 struct nfp_reprs *reprs);
452 const char *nfp_app_mip_name(struct nfp_app *app);
454 nfp_app_ctrl_msg_alloc(struct nfp_app *app, unsigned int size, gfp_t priority);
456 struct nfp_app *nfp_app_alloc(struct nfp_pf *pf, enum nfp_app_id id);
457 void nfp_app_free(struct nfp_app *app);
459 /* Callbacks shared between apps */
461 int nfp_app_nic_vnic_alloc(struct nfp_app *app, struct nfp_net *nn,
463 int nfp_app_nic_vnic_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
464 struct nfp_net *nn, unsigned int id);