Commit | Line | Data |
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ddc64d0a | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
aecd67b6 JDB |
2 | /* include/net/xdp.h |
3 | * | |
4 | * Copyright (c) 2017 Jesper Dangaard Brouer, Red Hat Inc. | |
aecd67b6 JDB |
5 | */ |
6 | #ifndef __LINUX_NET_XDP_H__ | |
7 | #define __LINUX_NET_XDP_H__ | |
8 | ||
f95f0f95 | 9 | #include <linux/skbuff.h> /* skb_shared_info */ |
d3d854fd | 10 | #include <uapi/linux/netdev.h> |
0cd917a4 | 11 | #include <linux/bitfield.h> |
f95f0f95 | 12 | |
aecd67b6 JDB |
13 | /** |
14 | * DOC: XDP RX-queue information | |
15 | * | |
16 | * The XDP RX-queue info (xdp_rxq_info) is associated with the driver | |
17 | * level RX-ring queues. It is information that is specific to how | |
18 | * the driver have configured a given RX-ring queue. | |
19 | * | |
6bbc7103 | 20 | * Each xdp_buff frame received in the driver carries a (pointer) |
aecd67b6 JDB |
21 | * reference to this xdp_rxq_info structure. This provides the XDP |
22 | * data-path read-access to RX-info for both kernel and bpf-side | |
23 | * (limited subset). | |
24 | * | |
25 | * For now, direct access is only safe while running in NAPI/softirq | |
6bbc7103 | 26 | * context. Contents are read-mostly and must not be updated during |
aecd67b6 JDB |
27 | * driver NAPI/softirq poll. |
28 | * | |
29 | * The driver usage API is a register and unregister API. | |
30 | * | |
31 | * The struct is not directly tied to the XDP prog. A new XDP prog | |
32 | * can be attached as long as it doesn't change the underlying | |
33 | * RX-ring. If the RX-ring does change significantly, the NIC driver | |
34 | * naturally need to stop the RX-ring before purging and reallocating | |
6bbc7103 KJ |
35 | * memory. In that process the driver MUST call unregister (which |
36 | * also applies for driver shutdown and unload). The register API is | |
aecd67b6 JDB |
37 | * also mandatory during RX-ring setup. |
38 | */ | |
39 | ||
5ab073ff JDB |
40 | enum xdp_mem_type { |
41 | MEM_TYPE_PAGE_SHARED = 0, /* Split-page refcnt based model */ | |
42 | MEM_TYPE_PAGE_ORDER0, /* Orig XDP full page model */ | |
57d0a1c1 | 43 | MEM_TYPE_PAGE_POOL, |
2b43470a | 44 | MEM_TYPE_XSK_BUFF_POOL, |
5ab073ff JDB |
45 | MEM_TYPE_MAX, |
46 | }; | |
47 | ||
d3d854fd JK |
48 | typedef u32 xdp_features_t; |
49 | ||
42b33468 | 50 | /* XDP flags for ndo_xdp_xmit */ |
42b33468 JDB |
51 | #define XDP_XMIT_FLUSH (1U << 0) /* doorbell signal consumer */ |
52 | #define XDP_XMIT_FLAGS_MASK XDP_XMIT_FLUSH | |
53 | ||
5ab073ff JDB |
54 | struct xdp_mem_info { |
55 | u32 type; /* enum xdp_mem_type, but known size type */ | |
8d5d8852 | 56 | u32 id; |
5ab073ff JDB |
57 | }; |
58 | ||
57d0a1c1 JDB |
59 | struct page_pool; |
60 | ||
aecd67b6 JDB |
61 | struct xdp_rxq_info { |
62 | struct net_device *dev; | |
63 | u32 queue_index; | |
64 | u32 reg_state; | |
5ab073ff | 65 | struct xdp_mem_info mem; |
b02e5a0e | 66 | unsigned int napi_id; |
bf25146a | 67 | u32 frag_size; |
aecd67b6 JDB |
68 | } ____cacheline_aligned; /* perf critical, avoid false-sharing */ |
69 | ||
64b59025 DA |
70 | struct xdp_txq_info { |
71 | struct net_device *dev; | |
72 | }; | |
73 | ||
2e88d4ff | 74 | enum xdp_buff_flags { |
d65a1906 LB |
75 | XDP_FLAGS_HAS_FRAGS = BIT(0), /* non-linear xdp buff */ |
76 | XDP_FLAGS_FRAGS_PF_MEMALLOC = BIT(1), /* xdp paged memory is under | |
77 | * pressure | |
78 | */ | |
2e88d4ff LB |
79 | }; |
80 | ||
106ca27f JDB |
81 | struct xdp_buff { |
82 | void *data; | |
83 | void *data_end; | |
84 | void *data_meta; | |
85 | void *data_hard_start; | |
86 | struct xdp_rxq_info *rxq; | |
64b59025 | 87 | struct xdp_txq_info *txq; |
f95f0f95 | 88 | u32 frame_sz; /* frame size to deduce data_hard_end/reserved tailroom*/ |
2e88d4ff | 89 | u32 flags; /* supported values defined in xdp_buff_flags */ |
106ca27f | 90 | }; |
5ab073ff | 91 | |
2e88d4ff LB |
92 | static __always_inline bool xdp_buff_has_frags(struct xdp_buff *xdp) |
93 | { | |
94 | return !!(xdp->flags & XDP_FLAGS_HAS_FRAGS); | |
95 | } | |
96 | ||
97 | static __always_inline void xdp_buff_set_frags_flag(struct xdp_buff *xdp) | |
98 | { | |
99 | xdp->flags |= XDP_FLAGS_HAS_FRAGS; | |
100 | } | |
101 | ||
102 | static __always_inline void xdp_buff_clear_frags_flag(struct xdp_buff *xdp) | |
103 | { | |
104 | xdp->flags &= ~XDP_FLAGS_HAS_FRAGS; | |
105 | } | |
106 | ||
d65a1906 LB |
107 | static __always_inline bool xdp_buff_is_frag_pfmemalloc(struct xdp_buff *xdp) |
108 | { | |
109 | return !!(xdp->flags & XDP_FLAGS_FRAGS_PF_MEMALLOC); | |
110 | } | |
111 | ||
112 | static __always_inline void xdp_buff_set_frag_pfmemalloc(struct xdp_buff *xdp) | |
113 | { | |
114 | xdp->flags |= XDP_FLAGS_FRAGS_PF_MEMALLOC; | |
115 | } | |
116 | ||
43b5169d LB |
117 | static __always_inline void |
118 | xdp_init_buff(struct xdp_buff *xdp, u32 frame_sz, struct xdp_rxq_info *rxq) | |
119 | { | |
120 | xdp->frame_sz = frame_sz; | |
121 | xdp->rxq = rxq; | |
2e88d4ff | 122 | xdp->flags = 0; |
43b5169d LB |
123 | } |
124 | ||
be9df4af LB |
125 | static __always_inline void |
126 | xdp_prepare_buff(struct xdp_buff *xdp, unsigned char *hard_start, | |
127 | int headroom, int data_len, const bool meta_valid) | |
128 | { | |
129 | unsigned char *data = hard_start + headroom; | |
130 | ||
131 | xdp->data_hard_start = hard_start; | |
132 | xdp->data = data; | |
133 | xdp->data_end = data + data_len; | |
134 | xdp->data_meta = meta_valid ? data : data + 1; | |
135 | } | |
136 | ||
f95f0f95 JDB |
137 | /* Reserve memory area at end-of data area. |
138 | * | |
139 | * This macro reserves tailroom in the XDP buffer by limiting the | |
140 | * XDP/BPF data access to data_hard_end. Notice same area (and size) | |
141 | * is used for XDP_PASS, when constructing the SKB via build_skb(). | |
142 | */ | |
143 | #define xdp_data_hard_end(xdp) \ | |
144 | ((xdp)->data_hard_start + (xdp)->frame_sz - \ | |
145 | SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) | |
146 | ||
2f0bc54b LB |
147 | static inline struct skb_shared_info * |
148 | xdp_get_shared_info_from_buff(struct xdp_buff *xdp) | |
149 | { | |
150 | return (struct skb_shared_info *)xdp_data_hard_end(xdp); | |
151 | } | |
152 | ||
0165cc81 LB |
153 | static __always_inline unsigned int xdp_get_buff_len(struct xdp_buff *xdp) |
154 | { | |
155 | unsigned int len = xdp->data_end - xdp->data; | |
156 | struct skb_shared_info *sinfo; | |
157 | ||
158 | if (likely(!xdp_buff_has_frags(xdp))) | |
159 | goto out; | |
160 | ||
161 | sinfo = xdp_get_shared_info_from_buff(xdp); | |
162 | len += sinfo->xdp_frags_size; | |
163 | out: | |
164 | return len; | |
165 | } | |
166 | ||
c0048cff JDB |
167 | struct xdp_frame { |
168 | void *data; | |
169 | u16 len; | |
170 | u16 headroom; | |
b860a1b9 | 171 | u32 metasize; /* uses lower 8-bits */ |
c0048cff JDB |
172 | /* Lifetime of xdp_rxq_info is limited to NAPI/enqueue time, |
173 | * while mem info is valid on remote CPU. | |
174 | */ | |
175 | struct xdp_mem_info mem; | |
70280ed9 | 176 | struct net_device *dev_rx; /* used by cpumap */ |
b860a1b9 | 177 | u32 frame_sz; |
2e88d4ff | 178 | u32 flags; /* supported values defined in xdp_buff_flags */ |
c0048cff JDB |
179 | }; |
180 | ||
2e88d4ff LB |
181 | static __always_inline bool xdp_frame_has_frags(struct xdp_frame *frame) |
182 | { | |
183 | return !!(frame->flags & XDP_FLAGS_HAS_FRAGS); | |
184 | } | |
185 | ||
d65a1906 LB |
186 | static __always_inline bool xdp_frame_is_frag_pfmemalloc(struct xdp_frame *frame) |
187 | { | |
188 | return !!(frame->flags & XDP_FLAGS_FRAGS_PF_MEMALLOC); | |
189 | } | |
190 | ||
89653987 LB |
191 | #define XDP_BULK_QUEUE_SIZE 16 |
192 | struct xdp_frame_bulk { | |
193 | int count; | |
194 | void *xa; | |
195 | void *q[XDP_BULK_QUEUE_SIZE]; | |
196 | }; | |
197 | ||
198 | static __always_inline void xdp_frame_bulk_init(struct xdp_frame_bulk *bq) | |
199 | { | |
200 | /* bq->count will be zero'ed when bq->xa gets updated */ | |
201 | bq->xa = NULL; | |
202 | } | |
dee72f8a | 203 | |
2f0bc54b LB |
204 | static inline struct skb_shared_info * |
205 | xdp_get_shared_info_from_frame(struct xdp_frame *frame) | |
206 | { | |
207 | void *data_hard_start = frame->data - frame->headroom - sizeof(*frame); | |
208 | ||
209 | return (struct skb_shared_info *)(data_hard_start + frame->frame_sz - | |
210 | SKB_DATA_ALIGN(sizeof(struct skb_shared_info))); | |
211 | } | |
212 | ||
92164774 | 213 | struct xdp_cpumap_stats { |
28b1520e | 214 | unsigned int redirect; |
92164774 LB |
215 | unsigned int pass; |
216 | unsigned int drop; | |
217 | }; | |
218 | ||
a8d5b4ab TM |
219 | /* Clear kernel pointers in xdp_frame */ |
220 | static inline void xdp_scrub_frame(struct xdp_frame *frame) | |
221 | { | |
222 | frame->data = NULL; | |
223 | frame->dev_rx = NULL; | |
224 | } | |
225 | ||
d65a1906 LB |
226 | static inline void |
227 | xdp_update_skb_shared_info(struct sk_buff *skb, u8 nr_frags, | |
228 | unsigned int size, unsigned int truesize, | |
229 | bool pfmemalloc) | |
230 | { | |
231 | skb_shinfo(skb)->nr_frags = nr_frags; | |
232 | ||
233 | skb->len += size; | |
234 | skb->data_len += size; | |
235 | skb->truesize += truesize; | |
236 | skb->pfmemalloc |= pfmemalloc; | |
237 | } | |
238 | ||
34cc0b33 JDB |
239 | /* Avoids inlining WARN macro in fast-path */ |
240 | void xdp_warn(const char *msg, const char *func, const int line); | |
241 | #define XDP_WARN(msg) xdp_warn(msg, __func__, __LINE__) | |
242 | ||
b0d1beef | 243 | struct xdp_frame *xdp_convert_zc_to_xdp_frame(struct xdp_buff *xdp); |
97a0e1ea LB |
244 | struct sk_buff *__xdp_build_skb_from_frame(struct xdp_frame *xdpf, |
245 | struct sk_buff *skb, | |
246 | struct net_device *dev); | |
89f479f0 LB |
247 | struct sk_buff *xdp_build_skb_from_frame(struct xdp_frame *xdpf, |
248 | struct net_device *dev); | |
65e6dcf7 | 249 | int xdp_alloc_skb_bulk(void **skbs, int n_skb, gfp_t gfp); |
e624d4ed | 250 | struct xdp_frame *xdpf_clone(struct xdp_frame *xdpf); |
b0d1beef | 251 | |
fc379872 LB |
252 | static inline |
253 | void xdp_convert_frame_to_buff(struct xdp_frame *frame, struct xdp_buff *xdp) | |
254 | { | |
255 | xdp->data_hard_start = frame->data - frame->headroom - sizeof(*frame); | |
256 | xdp->data = frame->data; | |
257 | xdp->data_end = frame->data + frame->len; | |
258 | xdp->data_meta = frame->data - frame->metasize; | |
259 | xdp->frame_sz = frame->frame_sz; | |
2e88d4ff | 260 | xdp->flags = frame->flags; |
fc379872 LB |
261 | } |
262 | ||
c0048cff | 263 | static inline |
daa5cdc3 DA |
264 | int xdp_update_frame_from_buff(struct xdp_buff *xdp, |
265 | struct xdp_frame *xdp_frame) | |
c0048cff | 266 | { |
daa5cdc3 | 267 | int metasize, headroom; |
02b55e56 | 268 | |
c0048cff JDB |
269 | /* Assure headroom is available for storing info */ |
270 | headroom = xdp->data - xdp->data_hard_start; | |
271 | metasize = xdp->data - xdp->data_meta; | |
272 | metasize = metasize > 0 ? metasize : 0; | |
273 | if (unlikely((headroom - metasize) < sizeof(*xdp_frame))) | |
daa5cdc3 | 274 | return -ENOSPC; |
c0048cff | 275 | |
34cc0b33 JDB |
276 | /* Catch if driver didn't reserve tailroom for skb_shared_info */ |
277 | if (unlikely(xdp->data_end > xdp_data_hard_end(xdp))) { | |
278 | XDP_WARN("Driver BUG: missing reserved tailroom"); | |
daa5cdc3 | 279 | return -ENOSPC; |
34cc0b33 JDB |
280 | } |
281 | ||
c0048cff JDB |
282 | xdp_frame->data = xdp->data; |
283 | xdp_frame->len = xdp->data_end - xdp->data; | |
284 | xdp_frame->headroom = headroom - sizeof(*xdp_frame); | |
285 | xdp_frame->metasize = metasize; | |
34cc0b33 | 286 | xdp_frame->frame_sz = xdp->frame_sz; |
2e88d4ff | 287 | xdp_frame->flags = xdp->flags; |
c0048cff | 288 | |
daa5cdc3 DA |
289 | return 0; |
290 | } | |
291 | ||
292 | /* Convert xdp_buff to xdp_frame */ | |
293 | static inline | |
294 | struct xdp_frame *xdp_convert_buff_to_frame(struct xdp_buff *xdp) | |
295 | { | |
296 | struct xdp_frame *xdp_frame; | |
297 | ||
298 | if (xdp->rxq->mem.type == MEM_TYPE_XSK_BUFF_POOL) | |
299 | return xdp_convert_zc_to_xdp_frame(xdp); | |
300 | ||
301 | /* Store info in top of packet */ | |
302 | xdp_frame = xdp->data_hard_start; | |
303 | if (unlikely(xdp_update_frame_from_buff(xdp, xdp_frame) < 0)) | |
304 | return NULL; | |
305 | ||
c0048cff JDB |
306 | /* rxq only valid until napi_schedule ends, convert to xdp_mem_info */ |
307 | xdp_frame->mem = xdp->rxq->mem; | |
308 | ||
309 | return xdp_frame; | |
310 | } | |
311 | ||
bf25146a EC |
312 | void __xdp_return(void *data, struct xdp_mem_info *mem, bool napi_direct, |
313 | struct xdp_buff *xdp); | |
03993094 | 314 | void xdp_return_frame(struct xdp_frame *xdpf); |
389ab7f0 | 315 | void xdp_return_frame_rx_napi(struct xdp_frame *xdpf); |
c497176c | 316 | void xdp_return_buff(struct xdp_buff *xdp); |
89653987 LB |
317 | void xdp_flush_frame_bulk(struct xdp_frame_bulk *bq); |
318 | void xdp_return_frame_bulk(struct xdp_frame *xdpf, | |
319 | struct xdp_frame_bulk *bq); | |
5ab073ff | 320 | |
5142239a LB |
321 | static __always_inline unsigned int xdp_get_frame_len(struct xdp_frame *xdpf) |
322 | { | |
323 | struct skb_shared_info *sinfo; | |
324 | unsigned int len = xdpf->len; | |
325 | ||
326 | if (likely(!xdp_frame_has_frags(xdpf))) | |
327 | goto out; | |
328 | ||
329 | sinfo = xdp_get_shared_info_from_frame(xdpf); | |
330 | len += sinfo->xdp_frags_size; | |
331 | out: | |
332 | return len; | |
333 | } | |
334 | ||
bf25146a EC |
335 | int __xdp_rxq_info_reg(struct xdp_rxq_info *xdp_rxq, |
336 | struct net_device *dev, u32 queue_index, | |
337 | unsigned int napi_id, u32 frag_size); | |
338 | static inline int | |
339 | xdp_rxq_info_reg(struct xdp_rxq_info *xdp_rxq, | |
340 | struct net_device *dev, u32 queue_index, | |
341 | unsigned int napi_id) | |
342 | { | |
343 | return __xdp_rxq_info_reg(xdp_rxq, dev, queue_index, napi_id, 0); | |
344 | } | |
345 | ||
aecd67b6 JDB |
346 | void xdp_rxq_info_unreg(struct xdp_rxq_info *xdp_rxq); |
347 | void xdp_rxq_info_unused(struct xdp_rxq_info *xdp_rxq); | |
c0124f32 | 348 | bool xdp_rxq_info_is_reg(struct xdp_rxq_info *xdp_rxq); |
5ab073ff JDB |
349 | int xdp_rxq_info_reg_mem_model(struct xdp_rxq_info *xdp_rxq, |
350 | enum xdp_mem_type type, void *allocator); | |
dce5bd61 | 351 | void xdp_rxq_info_unreg_mem_model(struct xdp_rxq_info *xdp_rxq); |
4a48ef70 THJ |
352 | int xdp_reg_mem_model(struct xdp_mem_info *mem, |
353 | enum xdp_mem_type type, void *allocator); | |
354 | void xdp_unreg_mem_model(struct xdp_mem_info *mem); | |
aecd67b6 | 355 | |
106ca27f JDB |
356 | /* Drivers not supporting XDP metadata can use this helper, which |
357 | * rejects any room expansion for metadata as a result. | |
358 | */ | |
359 | static __always_inline void | |
360 | xdp_set_data_meta_invalid(struct xdp_buff *xdp) | |
361 | { | |
362 | xdp->data_meta = xdp->data + 1; | |
363 | } | |
364 | ||
365 | static __always_inline bool | |
366 | xdp_data_meta_unsupported(const struct xdp_buff *xdp) | |
367 | { | |
368 | return unlikely(xdp->data_meta > xdp->data); | |
369 | } | |
370 | ||
7445cf31 ZE |
371 | static inline bool xdp_metalen_invalid(unsigned long metalen) |
372 | { | |
373 | return (metalen & (sizeof(__u32) - 1)) || (metalen > 32); | |
374 | } | |
375 | ||
05296620 JK |
376 | struct xdp_attachment_info { |
377 | struct bpf_prog *prog; | |
378 | u32 flags; | |
379 | }; | |
380 | ||
381 | struct netdev_bpf; | |
05296620 JK |
382 | void xdp_attachment_setup(struct xdp_attachment_info *info, |
383 | struct netdev_bpf *bpf); | |
384 | ||
89653987 | 385 | #define DEV_MAP_BULK_SIZE XDP_BULK_QUEUE_SIZE |
788f87ac | 386 | |
3d76a4d3 SF |
387 | #define XDP_METADATA_KFUNC_xxx \ |
388 | XDP_METADATA_KFUNC(XDP_METADATA_KFUNC_RX_TIMESTAMP, \ | |
389 | bpf_xdp_metadata_rx_timestamp) \ | |
390 | XDP_METADATA_KFUNC(XDP_METADATA_KFUNC_RX_HASH, \ | |
391 | bpf_xdp_metadata_rx_hash) \ | |
392 | ||
393 | enum { | |
394 | #define XDP_METADATA_KFUNC(name, _) name, | |
395 | XDP_METADATA_KFUNC_xxx | |
396 | #undef XDP_METADATA_KFUNC | |
397 | MAX_XDP_METADATA_KFUNC, | |
398 | }; | |
399 | ||
0cd917a4 JDB |
400 | enum xdp_rss_hash_type { |
401 | /* First part: Individual bits for L3/L4 types */ | |
402 | XDP_RSS_L3_IPV4 = BIT(0), | |
403 | XDP_RSS_L3_IPV6 = BIT(1), | |
404 | ||
405 | /* The fixed (L3) IPv4 and IPv6 headers can both be followed by | |
406 | * variable/dynamic headers, IPv4 called Options and IPv6 called | |
407 | * Extension Headers. HW RSS type can contain this info. | |
408 | */ | |
409 | XDP_RSS_L3_DYNHDR = BIT(2), | |
410 | ||
411 | /* When RSS hash covers L4 then drivers MUST set XDP_RSS_L4 bit in | |
412 | * addition to the protocol specific bit. This ease interaction with | |
413 | * SKBs and avoids reserving a fixed mask for future L4 protocol bits. | |
414 | */ | |
415 | XDP_RSS_L4 = BIT(3), /* L4 based hash, proto can be unknown */ | |
416 | XDP_RSS_L4_TCP = BIT(4), | |
417 | XDP_RSS_L4_UDP = BIT(5), | |
418 | XDP_RSS_L4_SCTP = BIT(6), | |
419 | XDP_RSS_L4_IPSEC = BIT(7), /* L4 based hash include IPSEC SPI */ | |
420 | ||
421 | /* Second part: RSS hash type combinations used for driver HW mapping */ | |
422 | XDP_RSS_TYPE_NONE = 0, | |
423 | XDP_RSS_TYPE_L2 = XDP_RSS_TYPE_NONE, | |
424 | ||
425 | XDP_RSS_TYPE_L3_IPV4 = XDP_RSS_L3_IPV4, | |
426 | XDP_RSS_TYPE_L3_IPV6 = XDP_RSS_L3_IPV6, | |
427 | XDP_RSS_TYPE_L3_IPV4_OPT = XDP_RSS_L3_IPV4 | XDP_RSS_L3_DYNHDR, | |
428 | XDP_RSS_TYPE_L3_IPV6_EX = XDP_RSS_L3_IPV6 | XDP_RSS_L3_DYNHDR, | |
429 | ||
430 | XDP_RSS_TYPE_L4_ANY = XDP_RSS_L4, | |
431 | XDP_RSS_TYPE_L4_IPV4_TCP = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_TCP, | |
432 | XDP_RSS_TYPE_L4_IPV4_UDP = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_UDP, | |
433 | XDP_RSS_TYPE_L4_IPV4_SCTP = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_SCTP, | |
67f245c2 | 434 | XDP_RSS_TYPE_L4_IPV4_IPSEC = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_IPSEC, |
0cd917a4 JDB |
435 | |
436 | XDP_RSS_TYPE_L4_IPV6_TCP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_TCP, | |
437 | XDP_RSS_TYPE_L4_IPV6_UDP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_UDP, | |
438 | XDP_RSS_TYPE_L4_IPV6_SCTP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_SCTP, | |
67f245c2 | 439 | XDP_RSS_TYPE_L4_IPV6_IPSEC = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_IPSEC, |
0cd917a4 JDB |
440 | |
441 | XDP_RSS_TYPE_L4_IPV6_TCP_EX = XDP_RSS_TYPE_L4_IPV6_TCP | XDP_RSS_L3_DYNHDR, | |
442 | XDP_RSS_TYPE_L4_IPV6_UDP_EX = XDP_RSS_TYPE_L4_IPV6_UDP | XDP_RSS_L3_DYNHDR, | |
443 | XDP_RSS_TYPE_L4_IPV6_SCTP_EX = XDP_RSS_TYPE_L4_IPV6_SCTP | XDP_RSS_L3_DYNHDR, | |
444 | }; | |
445 | ||
3d76a4d3 SF |
446 | #ifdef CONFIG_NET |
447 | u32 bpf_xdp_metadata_kfunc_id(int id); | |
448 | bool bpf_dev_bound_kfunc_id(u32 btf_id); | |
f85949f9 | 449 | void xdp_set_features_flag(struct net_device *dev, xdp_features_t val); |
66c0e13a MM |
450 | void xdp_features_set_redirect_target(struct net_device *dev, bool support_sg); |
451 | void xdp_features_clear_redirect_target(struct net_device *dev); | |
3d76a4d3 SF |
452 | #else |
453 | static inline u32 bpf_xdp_metadata_kfunc_id(int id) { return 0; } | |
454 | static inline bool bpf_dev_bound_kfunc_id(u32 btf_id) { return false; } | |
66c0e13a | 455 | |
f85949f9 LB |
456 | static inline void |
457 | xdp_set_features_flag(struct net_device *dev, xdp_features_t val) | |
458 | { | |
459 | } | |
460 | ||
66c0e13a MM |
461 | static inline void |
462 | xdp_features_set_redirect_target(struct net_device *dev, bool support_sg) | |
463 | { | |
464 | } | |
465 | ||
466 | static inline void | |
467 | xdp_features_clear_redirect_target(struct net_device *dev) | |
468 | { | |
469 | } | |
3d76a4d3 SF |
470 | #endif |
471 | ||
f85949f9 LB |
472 | static inline void xdp_clear_features_flag(struct net_device *dev) |
473 | { | |
474 | xdp_set_features_flag(dev, 0); | |
475 | } | |
476 | ||
aecd67b6 | 477 | #endif /* __LINUX_NET_XDP_H__ */ |