1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(C) 2019 Marvell International Ltd.
8 /* Default mark value used when none is provided. */
9 #define OTX2_FLOW_ACTION_FLAG_DEFAULT 0xffff
11 #define PTYPE_NON_TUNNEL_WIDTH 16
12 #define PTYPE_TUNNEL_WIDTH 12
13 #define PTYPE_NON_TUNNEL_ARRAY_SZ BIT(PTYPE_NON_TUNNEL_WIDTH)
14 #define PTYPE_TUNNEL_ARRAY_SZ BIT(PTYPE_TUNNEL_WIDTH)
15 #define PTYPE_ARRAY_SZ ((PTYPE_NON_TUNNEL_ARRAY_SZ +\
16 PTYPE_TUNNEL_ARRAY_SZ) *\
19 #define NIX_RX_OFFLOAD_NONE (0)
20 #define NIX_RX_OFFLOAD_RSS_F BIT(0)
21 #define NIX_RX_OFFLOAD_PTYPE_F BIT(1)
22 #define NIX_RX_OFFLOAD_CHECKSUM_F BIT(2)
23 #define NIX_RX_OFFLOAD_VLAN_STRIP_F BIT(3)
24 #define NIX_RX_OFFLOAD_MARK_UPDATE_F BIT(4)
25 #define NIX_RX_OFFLOAD_TSTAMP_F BIT(5)
27 /* Flags to control cqe_to_mbuf conversion function.
28 * Defining it from backwards to denote its been
29 * not used as offload flags to pick function
31 #define NIX_RX_MULTI_SEG_F BIT(15)
32 #define NIX_TIMESYNC_RX_OFFSET 8
34 struct otx2_timesync_info {
36 rte_iova_t tx_tstamp_iova;
40 } __rte_cache_aligned;
42 union mbuf_initializer {
52 static __rte_always_inline void
53 otx2_nix_mbuf_to_tstamp(struct rte_mbuf *mbuf,
54 struct otx2_timesync_info *tstamp, const uint16_t flag,
57 if ((flag & NIX_RX_OFFLOAD_TSTAMP_F) &&
58 (mbuf->data_off == RTE_PKTMBUF_HEADROOM +
59 NIX_TIMESYNC_RX_OFFSET)) {
61 /* Reading the rx timestamp inserted by CGX, viz at
62 * starting of the packet data.
64 mbuf->timestamp = rte_be_to_cpu_64(*tstamp_ptr);
65 /* PKT_RX_IEEE1588_TMST flag needs to be set only in case
66 * PTP packets are received.
68 if (mbuf->packet_type == RTE_PTYPE_L2_ETHER_TIMESYNC) {
69 tstamp->rx_tstamp = mbuf->timestamp;
71 mbuf->ol_flags |= PKT_RX_IEEE1588_PTP |
72 PKT_RX_IEEE1588_TMST | PKT_RX_TIMESTAMP;
77 static __rte_always_inline uint64_t
78 nix_clear_data_off(uint64_t oldval)
80 union mbuf_initializer mbuf_init = { .value = oldval };
82 mbuf_init.fields.data_off = 0;
83 return mbuf_init.value;
86 static __rte_always_inline struct rte_mbuf *
87 nix_get_mbuf_from_cqe(void *cq, const uint64_t data_off)
91 /* Skip CQE, NIX_RX_PARSE_S and SG HDR(9 DWORDs) and peek buff addr */
92 buff = *((rte_iova_t *)((uint64_t *)cq + 9));
93 return (struct rte_mbuf *)(buff - data_off);
97 static __rte_always_inline uint32_t
98 nix_ptype_get(const void * const lookup_mem, const uint64_t in)
100 const uint16_t * const ptype = lookup_mem;
101 const uint16_t lh_lg_lf = (in & 0xFFF0000000000000) >> 52;
102 const uint16_t tu_l2 = ptype[(in & 0x000FFFF000000000) >> 36];
103 const uint16_t il4_tu = ptype[PTYPE_NON_TUNNEL_ARRAY_SZ + lh_lg_lf];
105 return (il4_tu << PTYPE_NON_TUNNEL_WIDTH) | tu_l2;
108 static __rte_always_inline uint32_t
109 nix_rx_olflags_get(const void * const lookup_mem, const uint64_t in)
111 const uint32_t * const ol_flags = (const uint32_t *)
112 ((const uint8_t *)lookup_mem + PTYPE_ARRAY_SZ);
114 return ol_flags[(in & 0xfff00000) >> 20];
117 static inline uint64_t
118 nix_update_match_id(const uint16_t match_id, uint64_t ol_flags,
119 struct rte_mbuf *mbuf)
121 /* There is no separate bit to check match_id
122 * is valid or not? and no flag to identify it is an
123 * RTE_FLOW_ACTION_TYPE_FLAG vs RTE_FLOW_ACTION_TYPE_MARK
124 * action. The former case addressed through 0 being invalid
125 * value and inc/dec match_id pair when MARK is activated.
126 * The later case addressed through defining
127 * OTX2_FLOW_MARK_DEFAULT as value for
128 * RTE_FLOW_ACTION_TYPE_MARK.
129 * This would translate to not use
130 * OTX2_FLOW_ACTION_FLAG_DEFAULT - 1 and
131 * OTX2_FLOW_ACTION_FLAG_DEFAULT for match_id.
132 * i.e valid mark_id's are from
133 * 0 to OTX2_FLOW_ACTION_FLAG_DEFAULT - 2
135 if (likely(match_id)) {
136 ol_flags |= PKT_RX_FDIR;
137 if (match_id != OTX2_FLOW_ACTION_FLAG_DEFAULT) {
138 ol_flags |= PKT_RX_FDIR_ID;
139 mbuf->hash.fdir.hi = match_id - 1;
146 static __rte_always_inline void
147 nix_cqe_xtract_mseg(const struct nix_rx_parse_s *rx,
148 struct rte_mbuf *mbuf, uint64_t rearm)
150 const rte_iova_t *iova_list;
151 struct rte_mbuf *head;
152 const rte_iova_t *eol;
156 sg = *(const uint64_t *)(rx + 1);
157 nb_segs = (sg >> 48) & 0x3;
158 mbuf->nb_segs = nb_segs;
159 mbuf->data_len = sg & 0xFFFF;
162 eol = ((const rte_iova_t *)(rx + 1) + ((rx->desc_sizem1 + 1) << 1));
163 /* Skip SG_S and first IOVA*/
164 iova_list = ((const rte_iova_t *)(rx + 1)) + 2;
167 rearm = rearm & ~0xFFFF;
171 mbuf->next = ((struct rte_mbuf *)*iova_list) - 1;
174 __mempool_check_cookies(mbuf->pool, (void **)&mbuf, 1, 1);
176 mbuf->data_len = sg & 0xFFFF;
178 *(uint64_t *)(&mbuf->rearm_data) = rearm;
182 if (!nb_segs && (iova_list + 1 < eol)) {
183 sg = *(const uint64_t *)(iova_list);
184 nb_segs = (sg >> 48) & 0x3;
185 head->nb_segs += nb_segs;
186 iova_list = (const rte_iova_t *)(iova_list + 1);
191 static __rte_always_inline void
192 otx2_nix_cqe_to_mbuf(const struct nix_cqe_hdr_s *cq, const uint32_t tag,
193 struct rte_mbuf *mbuf, const void *lookup_mem,
194 const uint64_t val, const uint16_t flag)
196 const struct nix_rx_parse_s *rx =
197 (const struct nix_rx_parse_s *)((const uint64_t *)cq + 1);
198 const uint64_t w1 = *(const uint64_t *)rx;
199 const uint16_t len = rx->pkt_lenm1 + 1;
200 uint64_t ol_flags = 0;
202 /* Mark mempool obj as "get" as it is alloc'ed by NIX */
203 __mempool_check_cookies(mbuf->pool, (void **)&mbuf, 1, 1);
205 if (flag & NIX_RX_OFFLOAD_PTYPE_F)
206 mbuf->packet_type = nix_ptype_get(lookup_mem, w1);
208 mbuf->packet_type = 0;
210 if (flag & NIX_RX_OFFLOAD_RSS_F) {
211 mbuf->hash.rss = tag;
212 ol_flags |= PKT_RX_RSS_HASH;
215 if (flag & NIX_RX_OFFLOAD_CHECKSUM_F)
216 ol_flags |= nix_rx_olflags_get(lookup_mem, w1);
218 if (flag & NIX_RX_OFFLOAD_VLAN_STRIP_F) {
219 if (rx->vtag0_gone) {
220 ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
221 mbuf->vlan_tci = rx->vtag0_tci;
223 if (rx->vtag1_gone) {
224 ol_flags |= PKT_RX_QINQ | PKT_RX_QINQ_STRIPPED;
225 mbuf->vlan_tci_outer = rx->vtag1_tci;
229 if (flag & NIX_RX_OFFLOAD_MARK_UPDATE_F)
230 ol_flags = nix_update_match_id(rx->match_id, ol_flags, mbuf);
232 mbuf->ol_flags = ol_flags;
233 *(uint64_t *)(&mbuf->rearm_data) = val;
236 if (flag & NIX_RX_MULTI_SEG_F)
237 nix_cqe_xtract_mseg(rx, mbuf, val);
239 mbuf->data_len = len;
242 #define CKSUM_F NIX_RX_OFFLOAD_CHECKSUM_F
243 #define PTYPE_F NIX_RX_OFFLOAD_PTYPE_F
244 #define RSS_F NIX_RX_OFFLOAD_RSS_F
245 #define RX_VLAN_F NIX_RX_OFFLOAD_VLAN_STRIP_F
246 #define MARK_F NIX_RX_OFFLOAD_MARK_UPDATE_F
247 #define TS_F NIX_RX_OFFLOAD_TSTAMP_F
249 /* [TSMP] [MARK] [VLAN] [CKSUM] [PTYPE] [RSS] */
250 #define NIX_RX_FASTPATH_MODES \
251 R(no_offload, 0, 0, 0, 0, 0, 0, NIX_RX_OFFLOAD_NONE) \
252 R(rss, 0, 0, 0, 0, 0, 1, RSS_F) \
253 R(ptype, 0, 0, 0, 0, 1, 0, PTYPE_F) \
254 R(ptype_rss, 0, 0, 0, 0, 1, 1, PTYPE_F | RSS_F) \
255 R(cksum, 0, 0, 0, 1, 0, 0, CKSUM_F) \
256 R(cksum_rss, 0, 0, 0, 1, 0, 1, CKSUM_F | RSS_F) \
257 R(cksum_ptype, 0, 0, 0, 1, 1, 0, CKSUM_F | PTYPE_F) \
258 R(cksum_ptype_rss, 0, 0, 0, 1, 1, 1, CKSUM_F | PTYPE_F | RSS_F)\
259 R(vlan, 0, 0, 1, 0, 0, 0, RX_VLAN_F) \
260 R(vlan_rss, 0, 0, 1, 0, 0, 1, RX_VLAN_F | RSS_F) \
261 R(vlan_ptype, 0, 0, 1, 0, 1, 0, RX_VLAN_F | PTYPE_F) \
262 R(vlan_ptype_rss, 0, 0, 1, 0, 1, 1, RX_VLAN_F | PTYPE_F | RSS_F)\
263 R(vlan_cksum, 0, 0, 1, 1, 0, 0, RX_VLAN_F | CKSUM_F) \
264 R(vlan_cksum_rss, 0, 0, 1, 1, 0, 1, RX_VLAN_F | CKSUM_F | RSS_F)\
265 R(vlan_cksum_ptype, 0, 0, 1, 1, 1, 0, \
266 RX_VLAN_F | CKSUM_F | PTYPE_F) \
267 R(vlan_cksum_ptype_rss, 0, 0, 1, 1, 1, 1, \
268 RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F) \
269 R(mark, 0, 1, 0, 0, 0, 0, MARK_F) \
270 R(mark_rss, 0, 1, 0, 0, 0, 1, MARK_F | RSS_F) \
271 R(mark_ptype, 0, 1, 0, 0, 1, 0, MARK_F | PTYPE_F) \
272 R(mark_ptype_rss, 0, 1, 0, 0, 1, 1, MARK_F | PTYPE_F | RSS_F)\
273 R(mark_cksum, 0, 1, 0, 1, 0, 0, MARK_F | CKSUM_F) \
274 R(mark_cksum_rss, 0, 1, 0, 1, 0, 1, MARK_F | CKSUM_F | RSS_F)\
275 R(mark_cksum_ptype, 0, 1, 0, 1, 1, 0, MARK_F | CKSUM_F | PTYPE_F)\
276 R(mark_cksum_ptype_rss, 0, 1, 0, 1, 1, 1, \
277 MARK_F | CKSUM_F | PTYPE_F | RSS_F) \
278 R(mark_vlan, 0, 1, 1, 0, 0, 0, MARK_F | RX_VLAN_F) \
279 R(mark_vlan_rss, 0, 1, 1, 0, 0, 1, MARK_F | RX_VLAN_F | RSS_F)\
280 R(mark_vlan_ptype, 0, 1, 1, 0, 1, 0, \
281 MARK_F | RX_VLAN_F | PTYPE_F) \
282 R(mark_vlan_ptype_rss, 0, 1, 1, 0, 1, 1, \
283 MARK_F | RX_VLAN_F | PTYPE_F | RSS_F) \
284 R(mark_vlan_cksum, 0, 1, 1, 1, 0, 0, \
285 MARK_F | RX_VLAN_F | CKSUM_F) \
286 R(mark_vlan_cksum_rss, 0, 1, 1, 1, 0, 1, \
287 MARK_F | RX_VLAN_F | CKSUM_F | RSS_F) \
288 R(mark_vlan_cksum_ptype, 0, 1, 1, 1, 1, 0, \
289 MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F) \
290 R(mark_vlan_cksum_ptype_rss, 0, 1, 1, 1, 1, 1, \
291 MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F) \
292 R(ts, 1, 0, 0, 0, 0, 0, TS_F) \
293 R(ts_rss, 1, 0, 0, 0, 0, 1, TS_F | RSS_F) \
294 R(ts_ptype, 1, 0, 0, 0, 1, 0, TS_F | PTYPE_F) \
295 R(ts_ptype_rss, 1, 0, 0, 0, 1, 1, TS_F | PTYPE_F | RSS_F)\
296 R(ts_cksum, 1, 0, 0, 1, 0, 0, TS_F | CKSUM_F) \
297 R(ts_cksum_rss, 1, 0, 0, 1, 0, 1, TS_F | CKSUM_F | RSS_F)\
298 R(ts_cksum_ptype, 1, 0, 0, 1, 1, 0, TS_F | CKSUM_F | PTYPE_F)\
299 R(ts_cksum_ptype_rss, 1, 0, 0, 1, 1, 1, \
300 TS_F | CKSUM_F | PTYPE_F | RSS_F) \
301 R(ts_vlan, 1, 0, 1, 0, 0, 0, TS_F | RX_VLAN_F) \
302 R(ts_vlan_rss, 1, 0, 1, 0, 0, 1, TS_F | RX_VLAN_F | RSS_F)\
303 R(ts_vlan_ptype, 1, 0, 1, 0, 1, 0, TS_F | RX_VLAN_F | PTYPE_F)\
304 R(ts_vlan_ptype_rss, 1, 0, 1, 0, 1, 1, \
305 TS_F | RX_VLAN_F | PTYPE_F | RSS_F) \
306 R(ts_vlan_cksum, 1, 0, 1, 1, 0, 0, \
307 TS_F | RX_VLAN_F | CKSUM_F) \
308 R(ts_vlan_cksum_rss, 1, 0, 1, 1, 0, 1, \
309 MARK_F | RX_VLAN_F | CKSUM_F | RSS_F) \
310 R(ts_vlan_cksum_ptype, 1, 0, 1, 1, 1, 0, \
311 TS_F | RX_VLAN_F | CKSUM_F | PTYPE_F) \
312 R(ts_vlan_cksum_ptype_rss, 1, 0, 1, 1, 1, 1, \
313 TS_F | RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F) \
314 R(ts_mark, 1, 1, 0, 0, 0, 0, TS_F | MARK_F) \
315 R(ts_mark_rss, 1, 1, 0, 0, 0, 1, TS_F | MARK_F | RSS_F)\
316 R(ts_mark_ptype, 1, 1, 0, 0, 1, 0, TS_F | MARK_F | PTYPE_F)\
317 R(ts_mark_ptype_rss, 1, 1, 0, 0, 1, 1, \
318 TS_F | MARK_F | PTYPE_F | RSS_F) \
319 R(ts_mark_cksum, 1, 1, 0, 1, 0, 0, TS_F | MARK_F | CKSUM_F)\
320 R(ts_mark_cksum_rss, 1, 1, 0, 1, 0, 1, \
321 TS_F | MARK_F | CKSUM_F | RSS_F)\
322 R(ts_mark_cksum_ptype, 1, 1, 0, 1, 1, 0, \
323 TS_F | MARK_F | CKSUM_F | PTYPE_F) \
324 R(ts_mark_cksum_ptype_rss, 1, 1, 0, 1, 1, 1, \
325 TS_F | MARK_F | CKSUM_F | PTYPE_F | RSS_F) \
326 R(ts_mark_vlan, 1, 1, 1, 0, 0, 0, TS_F | MARK_F | RX_VLAN_F)\
327 R(ts_mark_vlan_rss, 1, 1, 1, 0, 0, 1, \
328 TS_F | MARK_F | RX_VLAN_F | RSS_F)\
329 R(ts_mark_vlan_ptype, 1, 1, 1, 0, 1, 0, \
330 TS_F | MARK_F | RX_VLAN_F | PTYPE_F) \
331 R(ts_mark_vlan_ptype_rss, 1, 1, 1, 0, 1, 1, \
332 TS_F | MARK_F | RX_VLAN_F | PTYPE_F | RSS_F) \
333 R(ts_mark_vlan_cksum_ptype, 1, 1, 1, 1, 1, 0, \
334 TS_F | MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F) \
335 R(ts_mark_vlan_cksum_ptype_rss, 1, 1, 1, 1, 1, 1, \
336 TS_F | MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F)
338 #endif /* __OTX2_RX_H__ */