1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(C) 2019 Marvell International Ltd.
10 #include "otx2_common.h"
11 #include "otx2_ethdev_sec.h"
12 #include "otx2_ipsec_fp.h"
14 /* Default mark value used when none is provided. */
15 #define OTX2_FLOW_ACTION_FLAG_DEFAULT 0xffff
17 #define PTYPE_NON_TUNNEL_WIDTH 16
18 #define PTYPE_TUNNEL_WIDTH 12
19 #define PTYPE_NON_TUNNEL_ARRAY_SZ BIT(PTYPE_NON_TUNNEL_WIDTH)
20 #define PTYPE_TUNNEL_ARRAY_SZ BIT(PTYPE_TUNNEL_WIDTH)
21 #define PTYPE_ARRAY_SZ ((PTYPE_NON_TUNNEL_ARRAY_SZ +\
22 PTYPE_TUNNEL_ARRAY_SZ) *\
25 #define NIX_RX_OFFLOAD_NONE (0)
26 #define NIX_RX_OFFLOAD_RSS_F BIT(0)
27 #define NIX_RX_OFFLOAD_PTYPE_F BIT(1)
28 #define NIX_RX_OFFLOAD_CHECKSUM_F BIT(2)
29 #define NIX_RX_OFFLOAD_VLAN_STRIP_F BIT(3)
30 #define NIX_RX_OFFLOAD_MARK_UPDATE_F BIT(4)
31 #define NIX_RX_OFFLOAD_TSTAMP_F BIT(5)
33 /* Flags to control cqe_to_mbuf conversion function.
34 * Defining it from backwards to denote its been
35 * not used as offload flags to pick function
37 #define NIX_RX_MULTI_SEG_F BIT(15)
38 #define NIX_TIMESYNC_RX_OFFSET 8
40 /* Inline IPsec offsets */
42 #define INLINE_INB_RPTR_HDR 16
43 /* nix_cqe_hdr_s + nix_rx_parse_s + nix_rx_sg_s + nix_iova_s */
44 #define INLINE_CPT_RESULT_OFFSET 80
46 struct otx2_timesync_info {
48 rte_iova_t tx_tstamp_iova;
52 } __rte_cache_aligned;
54 union mbuf_initializer {
64 static __rte_always_inline void
65 otx2_nix_mbuf_to_tstamp(struct rte_mbuf *mbuf,
66 struct otx2_timesync_info *tstamp, const uint16_t flag,
69 if ((flag & NIX_RX_OFFLOAD_TSTAMP_F) &&
70 (mbuf->data_off == RTE_PKTMBUF_HEADROOM +
71 NIX_TIMESYNC_RX_OFFSET)) {
73 mbuf->pkt_len -= NIX_TIMESYNC_RX_OFFSET;
75 /* Reading the rx timestamp inserted by CGX, viz at
76 * starting of the packet data.
78 mbuf->timestamp = rte_be_to_cpu_64(*tstamp_ptr);
79 /* PKT_RX_IEEE1588_TMST flag needs to be set only in case
80 * PTP packets are received.
82 if (mbuf->packet_type == RTE_PTYPE_L2_ETHER_TIMESYNC) {
83 tstamp->rx_tstamp = mbuf->timestamp;
85 mbuf->ol_flags |= PKT_RX_IEEE1588_PTP |
86 PKT_RX_IEEE1588_TMST | PKT_RX_TIMESTAMP;
91 static __rte_always_inline uint64_t
92 nix_clear_data_off(uint64_t oldval)
94 union mbuf_initializer mbuf_init = { .value = oldval };
96 mbuf_init.fields.data_off = 0;
97 return mbuf_init.value;
100 static __rte_always_inline struct rte_mbuf *
101 nix_get_mbuf_from_cqe(void *cq, const uint64_t data_off)
105 /* Skip CQE, NIX_RX_PARSE_S and SG HDR(9 DWORDs) and peek buff addr */
106 buff = *((rte_iova_t *)((uint64_t *)cq + 9));
107 return (struct rte_mbuf *)(buff - data_off);
111 static __rte_always_inline uint32_t
112 nix_ptype_get(const void * const lookup_mem, const uint64_t in)
114 const uint16_t * const ptype = lookup_mem;
115 const uint16_t lh_lg_lf = (in & 0xFFF0000000000000) >> 52;
116 const uint16_t tu_l2 = ptype[(in & 0x000FFFF000000000) >> 36];
117 const uint16_t il4_tu = ptype[PTYPE_NON_TUNNEL_ARRAY_SZ + lh_lg_lf];
119 return (il4_tu << PTYPE_NON_TUNNEL_WIDTH) | tu_l2;
122 static __rte_always_inline uint32_t
123 nix_rx_olflags_get(const void * const lookup_mem, const uint64_t in)
125 const uint32_t * const ol_flags = (const uint32_t *)
126 ((const uint8_t *)lookup_mem + PTYPE_ARRAY_SZ);
128 return ol_flags[(in & 0xfff00000) >> 20];
131 static inline uint64_t
132 nix_update_match_id(const uint16_t match_id, uint64_t ol_flags,
133 struct rte_mbuf *mbuf)
135 /* There is no separate bit to check match_id
136 * is valid or not? and no flag to identify it is an
137 * RTE_FLOW_ACTION_TYPE_FLAG vs RTE_FLOW_ACTION_TYPE_MARK
138 * action. The former case addressed through 0 being invalid
139 * value and inc/dec match_id pair when MARK is activated.
140 * The later case addressed through defining
141 * OTX2_FLOW_MARK_DEFAULT as value for
142 * RTE_FLOW_ACTION_TYPE_MARK.
143 * This would translate to not use
144 * OTX2_FLOW_ACTION_FLAG_DEFAULT - 1 and
145 * OTX2_FLOW_ACTION_FLAG_DEFAULT for match_id.
146 * i.e valid mark_id's are from
147 * 0 to OTX2_FLOW_ACTION_FLAG_DEFAULT - 2
149 if (likely(match_id)) {
150 ol_flags |= PKT_RX_FDIR;
151 if (match_id != OTX2_FLOW_ACTION_FLAG_DEFAULT) {
152 ol_flags |= PKT_RX_FDIR_ID;
153 mbuf->hash.fdir.hi = match_id - 1;
160 static __rte_always_inline void
161 nix_cqe_xtract_mseg(const struct nix_rx_parse_s *rx,
162 struct rte_mbuf *mbuf, uint64_t rearm)
164 const rte_iova_t *iova_list;
165 struct rte_mbuf *head;
166 const rte_iova_t *eol;
170 sg = *(const uint64_t *)(rx + 1);
171 nb_segs = (sg >> 48) & 0x3;
172 mbuf->nb_segs = nb_segs;
173 mbuf->data_len = sg & 0xFFFF;
176 eol = ((const rte_iova_t *)(rx + 1) + ((rx->desc_sizem1 + 1) << 1));
177 /* Skip SG_S and first IOVA*/
178 iova_list = ((const rte_iova_t *)(rx + 1)) + 2;
181 rearm = rearm & ~0xFFFF;
185 mbuf->next = ((struct rte_mbuf *)*iova_list) - 1;
188 __mempool_check_cookies(mbuf->pool, (void **)&mbuf, 1, 1);
190 mbuf->data_len = sg & 0xFFFF;
192 *(uint64_t *)(&mbuf->rearm_data) = rearm;
196 if (!nb_segs && (iova_list + 1 < eol)) {
197 sg = *(const uint64_t *)(iova_list);
198 nb_segs = (sg >> 48) & 0x3;
199 head->nb_segs += nb_segs;
200 iova_list = (const rte_iova_t *)(iova_list + 1);
205 static __rte_always_inline uint16_t
206 nix_rx_sec_cptres_get(const void *cq)
208 volatile const struct otx2_cpt_res *res;
210 res = (volatile const struct otx2_cpt_res *)((const char *)cq +
211 INLINE_CPT_RESULT_OFFSET);
216 static __rte_always_inline void *
217 nix_rx_sec_sa_get(const void * const lookup_mem, int spi, uint16_t port)
219 const uint64_t *const *sa_tbl = (const uint64_t * const *)
220 ((const uint8_t *)lookup_mem + OTX2_NIX_SA_TBL_START);
222 return (void *)sa_tbl[port][spi];
225 static __rte_always_inline uint64_t
226 nix_rx_sec_mbuf_update(const struct nix_cqe_hdr_s *cq, struct rte_mbuf *m,
227 const void * const lookup_mem)
229 struct otx2_ipsec_fp_in_sa *sa;
230 struct rte_ipv4_hdr *ipv4;
235 if (unlikely(nix_rx_sec_cptres_get(cq) != OTX2_SEC_COMP_GOOD))
236 return PKT_RX_SEC_OFFLOAD | PKT_RX_SEC_OFFLOAD_FAILED;
238 /* 20 bits of tag would have the SPI */
239 spi = cq->tag & 0xFFFFF;
241 sa = nix_rx_sec_sa_get(lookup_mem, spi, m->port);
242 m->udata64 = (uint64_t)sa->userdata;
244 data = rte_pktmbuf_mtod(m, char *);
245 memcpy(data + INLINE_INB_RPTR_HDR, data, RTE_ETHER_HDR_LEN);
247 m->data_off += INLINE_INB_RPTR_HDR;
249 ipv4 = (struct rte_ipv4_hdr *)(data + INLINE_INB_RPTR_HDR +
252 m_len = rte_be_to_cpu_16(ipv4->total_length) + RTE_ETHER_HDR_LEN;
256 return PKT_RX_SEC_OFFLOAD;
259 static __rte_always_inline void
260 otx2_nix_cqe_to_mbuf(const struct nix_cqe_hdr_s *cq, const uint32_t tag,
261 struct rte_mbuf *mbuf, const void *lookup_mem,
262 const uint64_t val, const uint16_t flag)
264 const struct nix_rx_parse_s *rx =
265 (const struct nix_rx_parse_s *)((const uint64_t *)cq + 1);
266 const uint64_t w1 = *(const uint64_t *)rx;
267 const uint16_t len = rx->pkt_lenm1 + 1;
268 uint64_t ol_flags = 0;
270 /* Mark mempool obj as "get" as it is alloc'ed by NIX */
271 __mempool_check_cookies(mbuf->pool, (void **)&mbuf, 1, 1);
273 if (flag & NIX_RX_OFFLOAD_PTYPE_F)
274 mbuf->packet_type = nix_ptype_get(lookup_mem, w1);
276 mbuf->packet_type = 0;
278 if (flag & NIX_RX_OFFLOAD_RSS_F) {
279 mbuf->hash.rss = tag;
280 ol_flags |= PKT_RX_RSS_HASH;
283 if (flag & NIX_RX_OFFLOAD_CHECKSUM_F)
284 ol_flags |= nix_rx_olflags_get(lookup_mem, w1);
286 if (flag & NIX_RX_OFFLOAD_VLAN_STRIP_F) {
287 if (rx->vtag0_gone) {
288 ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
289 mbuf->vlan_tci = rx->vtag0_tci;
291 if (rx->vtag1_gone) {
292 ol_flags |= PKT_RX_QINQ | PKT_RX_QINQ_STRIPPED;
293 mbuf->vlan_tci_outer = rx->vtag1_tci;
297 if (flag & NIX_RX_OFFLOAD_MARK_UPDATE_F)
298 ol_flags = nix_update_match_id(rx->match_id, ol_flags, mbuf);
300 if (cq->cqe_type == NIX_XQE_TYPE_RX_IPSECH) {
301 *(uint64_t *)(&mbuf->rearm_data) = val;
302 ol_flags |= nix_rx_sec_mbuf_update(cq, mbuf, lookup_mem);
303 mbuf->ol_flags = ol_flags;
307 mbuf->ol_flags = ol_flags;
308 *(uint64_t *)(&mbuf->rearm_data) = val;
311 if (flag & NIX_RX_MULTI_SEG_F)
312 nix_cqe_xtract_mseg(rx, mbuf, val);
314 mbuf->data_len = len;
317 #define CKSUM_F NIX_RX_OFFLOAD_CHECKSUM_F
318 #define PTYPE_F NIX_RX_OFFLOAD_PTYPE_F
319 #define RSS_F NIX_RX_OFFLOAD_RSS_F
320 #define RX_VLAN_F NIX_RX_OFFLOAD_VLAN_STRIP_F
321 #define MARK_F NIX_RX_OFFLOAD_MARK_UPDATE_F
322 #define TS_F NIX_RX_OFFLOAD_TSTAMP_F
324 /* [TSMP] [MARK] [VLAN] [CKSUM] [PTYPE] [RSS] */
325 #define NIX_RX_FASTPATH_MODES \
326 R(no_offload, 0, 0, 0, 0, 0, 0, NIX_RX_OFFLOAD_NONE) \
327 R(rss, 0, 0, 0, 0, 0, 1, RSS_F) \
328 R(ptype, 0, 0, 0, 0, 1, 0, PTYPE_F) \
329 R(ptype_rss, 0, 0, 0, 0, 1, 1, PTYPE_F | RSS_F) \
330 R(cksum, 0, 0, 0, 1, 0, 0, CKSUM_F) \
331 R(cksum_rss, 0, 0, 0, 1, 0, 1, CKSUM_F | RSS_F) \
332 R(cksum_ptype, 0, 0, 0, 1, 1, 0, CKSUM_F | PTYPE_F) \
333 R(cksum_ptype_rss, 0, 0, 0, 1, 1, 1, CKSUM_F | PTYPE_F | RSS_F)\
334 R(vlan, 0, 0, 1, 0, 0, 0, RX_VLAN_F) \
335 R(vlan_rss, 0, 0, 1, 0, 0, 1, RX_VLAN_F | RSS_F) \
336 R(vlan_ptype, 0, 0, 1, 0, 1, 0, RX_VLAN_F | PTYPE_F) \
337 R(vlan_ptype_rss, 0, 0, 1, 0, 1, 1, RX_VLAN_F | PTYPE_F | RSS_F)\
338 R(vlan_cksum, 0, 0, 1, 1, 0, 0, RX_VLAN_F | CKSUM_F) \
339 R(vlan_cksum_rss, 0, 0, 1, 1, 0, 1, RX_VLAN_F | CKSUM_F | RSS_F)\
340 R(vlan_cksum_ptype, 0, 0, 1, 1, 1, 0, \
341 RX_VLAN_F | CKSUM_F | PTYPE_F) \
342 R(vlan_cksum_ptype_rss, 0, 0, 1, 1, 1, 1, \
343 RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F) \
344 R(mark, 0, 1, 0, 0, 0, 0, MARK_F) \
345 R(mark_rss, 0, 1, 0, 0, 0, 1, MARK_F | RSS_F) \
346 R(mark_ptype, 0, 1, 0, 0, 1, 0, MARK_F | PTYPE_F) \
347 R(mark_ptype_rss, 0, 1, 0, 0, 1, 1, MARK_F | PTYPE_F | RSS_F)\
348 R(mark_cksum, 0, 1, 0, 1, 0, 0, MARK_F | CKSUM_F) \
349 R(mark_cksum_rss, 0, 1, 0, 1, 0, 1, MARK_F | CKSUM_F | RSS_F)\
350 R(mark_cksum_ptype, 0, 1, 0, 1, 1, 0, MARK_F | CKSUM_F | PTYPE_F)\
351 R(mark_cksum_ptype_rss, 0, 1, 0, 1, 1, 1, \
352 MARK_F | CKSUM_F | PTYPE_F | RSS_F) \
353 R(mark_vlan, 0, 1, 1, 0, 0, 0, MARK_F | RX_VLAN_F) \
354 R(mark_vlan_rss, 0, 1, 1, 0, 0, 1, MARK_F | RX_VLAN_F | RSS_F)\
355 R(mark_vlan_ptype, 0, 1, 1, 0, 1, 0, \
356 MARK_F | RX_VLAN_F | PTYPE_F) \
357 R(mark_vlan_ptype_rss, 0, 1, 1, 0, 1, 1, \
358 MARK_F | RX_VLAN_F | PTYPE_F | RSS_F) \
359 R(mark_vlan_cksum, 0, 1, 1, 1, 0, 0, \
360 MARK_F | RX_VLAN_F | CKSUM_F) \
361 R(mark_vlan_cksum_rss, 0, 1, 1, 1, 0, 1, \
362 MARK_F | RX_VLAN_F | CKSUM_F | RSS_F) \
363 R(mark_vlan_cksum_ptype, 0, 1, 1, 1, 1, 0, \
364 MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F) \
365 R(mark_vlan_cksum_ptype_rss, 0, 1, 1, 1, 1, 1, \
366 MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F) \
367 R(ts, 1, 0, 0, 0, 0, 0, TS_F) \
368 R(ts_rss, 1, 0, 0, 0, 0, 1, TS_F | RSS_F) \
369 R(ts_ptype, 1, 0, 0, 0, 1, 0, TS_F | PTYPE_F) \
370 R(ts_ptype_rss, 1, 0, 0, 0, 1, 1, TS_F | PTYPE_F | RSS_F)\
371 R(ts_cksum, 1, 0, 0, 1, 0, 0, TS_F | CKSUM_F) \
372 R(ts_cksum_rss, 1, 0, 0, 1, 0, 1, TS_F | CKSUM_F | RSS_F)\
373 R(ts_cksum_ptype, 1, 0, 0, 1, 1, 0, TS_F | CKSUM_F | PTYPE_F)\
374 R(ts_cksum_ptype_rss, 1, 0, 0, 1, 1, 1, \
375 TS_F | CKSUM_F | PTYPE_F | RSS_F) \
376 R(ts_vlan, 1, 0, 1, 0, 0, 0, TS_F | RX_VLAN_F) \
377 R(ts_vlan_rss, 1, 0, 1, 0, 0, 1, TS_F | RX_VLAN_F | RSS_F)\
378 R(ts_vlan_ptype, 1, 0, 1, 0, 1, 0, TS_F | RX_VLAN_F | PTYPE_F)\
379 R(ts_vlan_ptype_rss, 1, 0, 1, 0, 1, 1, \
380 TS_F | RX_VLAN_F | PTYPE_F | RSS_F) \
381 R(ts_vlan_cksum, 1, 0, 1, 1, 0, 0, \
382 TS_F | RX_VLAN_F | CKSUM_F) \
383 R(ts_vlan_cksum_rss, 1, 0, 1, 1, 0, 1, \
384 MARK_F | RX_VLAN_F | CKSUM_F | RSS_F) \
385 R(ts_vlan_cksum_ptype, 1, 0, 1, 1, 1, 0, \
386 TS_F | RX_VLAN_F | CKSUM_F | PTYPE_F) \
387 R(ts_vlan_cksum_ptype_rss, 1, 0, 1, 1, 1, 1, \
388 TS_F | RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F) \
389 R(ts_mark, 1, 1, 0, 0, 0, 0, TS_F | MARK_F) \
390 R(ts_mark_rss, 1, 1, 0, 0, 0, 1, TS_F | MARK_F | RSS_F)\
391 R(ts_mark_ptype, 1, 1, 0, 0, 1, 0, TS_F | MARK_F | PTYPE_F)\
392 R(ts_mark_ptype_rss, 1, 1, 0, 0, 1, 1, \
393 TS_F | MARK_F | PTYPE_F | RSS_F) \
394 R(ts_mark_cksum, 1, 1, 0, 1, 0, 0, TS_F | MARK_F | CKSUM_F)\
395 R(ts_mark_cksum_rss, 1, 1, 0, 1, 0, 1, \
396 TS_F | MARK_F | CKSUM_F | RSS_F)\
397 R(ts_mark_cksum_ptype, 1, 1, 0, 1, 1, 0, \
398 TS_F | MARK_F | CKSUM_F | PTYPE_F) \
399 R(ts_mark_cksum_ptype_rss, 1, 1, 0, 1, 1, 1, \
400 TS_F | MARK_F | CKSUM_F | PTYPE_F | RSS_F) \
401 R(ts_mark_vlan, 1, 1, 1, 0, 0, 0, TS_F | MARK_F | RX_VLAN_F)\
402 R(ts_mark_vlan_rss, 1, 1, 1, 0, 0, 1, \
403 TS_F | MARK_F | RX_VLAN_F | RSS_F)\
404 R(ts_mark_vlan_ptype, 1, 1, 1, 0, 1, 0, \
405 TS_F | MARK_F | RX_VLAN_F | PTYPE_F) \
406 R(ts_mark_vlan_ptype_rss, 1, 1, 1, 0, 1, 1, \
407 TS_F | MARK_F | RX_VLAN_F | PTYPE_F | RSS_F) \
408 R(ts_mark_vlan_cksum_ptype, 1, 1, 1, 1, 1, 0, \
409 TS_F | MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F) \
410 R(ts_mark_vlan_cksum_ptype_rss, 1, 1, 1, 1, 1, 1, \
411 TS_F | MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F)
413 #endif /* __OTX2_RX_H__ */