1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2017 Cavium, Inc 3 */ 4 5 #include "ssovf_worker.h" 6 7 static __rte_always_inline void 8 ssows_new_event(struct ssows *ws, const struct rte_event *ev) 9 { 10 const uint64_t event_ptr = ev->u64; 11 const uint32_t tag = (uint32_t)ev->event; 12 const uint8_t new_tt = ev->sched_type; 13 const uint8_t grp = ev->queue_id; 14 15 ssows_add_work(ws, event_ptr, tag, new_tt, grp); 16 } 17 18 static __rte_always_inline void 19 ssows_fwd_swtag(struct ssows *ws, const struct rte_event *ev, const uint8_t grp) 20 { 21 const uint8_t cur_tt = ws->cur_tt; 22 const uint8_t new_tt = ev->sched_type; 23 const uint32_t tag = (uint32_t)ev->event; 24 /* 25 * cur_tt/new_tt SSO_SYNC_ORDERED SSO_SYNC_ATOMIC SSO_SYNC_UNTAGGED 26 * 27 * SSO_SYNC_ORDERED norm norm untag 28 * SSO_SYNC_ATOMIC norm norm untag 29 * SSO_SYNC_UNTAGGED full full NOOP 30 */ 31 if (unlikely(cur_tt == SSO_SYNC_UNTAGGED)) { 32 if (new_tt != SSO_SYNC_UNTAGGED) { 33 ssows_swtag_full(ws, ev->u64, tag, 34 new_tt, grp); 35 } 36 } else { 37 if (likely(new_tt != SSO_SYNC_UNTAGGED)) 38 ssows_swtag_norm(ws, tag, new_tt); 39 else 40 ssows_swtag_untag(ws); 41 } 42 ws->swtag_req = 1; 43 } 44 45 #define OCT_EVENT_TYPE_GRP_FWD (RTE_EVENT_TYPE_MAX - 1) 46 47 static __rte_always_inline void 48 ssows_fwd_group(struct ssows *ws, const struct rte_event *ev, const uint8_t grp) 49 { 50 const uint64_t event_ptr = ev->u64; 51 const uint32_t tag = (uint32_t)ev->event; 52 const uint8_t cur_tt = ws->cur_tt; 53 const uint8_t new_tt = ev->sched_type; 54 55 if (cur_tt == SSO_SYNC_ORDERED) { 56 /* Create unique tag based on custom event type and new grp */ 57 uint32_t newtag = OCT_EVENT_TYPE_GRP_FWD << 28; 58 59 newtag |= grp << 20; 60 newtag |= tag; 61 ssows_swtag_norm(ws, newtag, SSO_SYNC_ATOMIC); 62 rte_smp_wmb(); 63 ssows_swtag_wait(ws); 64 } else { 65 rte_smp_wmb(); 66 } 67 ssows_add_work(ws, event_ptr, tag, new_tt, grp); 68 } 69 70 static __rte_always_inline void 71 ssows_forward_event(struct ssows *ws, const struct rte_event *ev) 72 { 73 const uint8_t grp = ev->queue_id; 74 75 /* Group hasn't changed, Use SWTAG to forward the event */ 76 if (ws->cur_grp == grp) 77 ssows_fwd_swtag(ws, ev, grp); 78 else 79 /* 80 * Group has been changed for group based work pipelining, 81 * Use deschedule/add_work operation to transfer the event to 82 * new group/core 83 */ 84 ssows_fwd_group(ws, ev, grp); 85 } 86 87 static __rte_always_inline void 88 ssows_release_event(struct ssows *ws) 89 { 90 if (likely(ws->cur_tt != SSO_SYNC_UNTAGGED)) 91 ssows_swtag_untag(ws); 92 } 93 94 #define R(name, f2, f1, f0, flags) \ 95 static uint16_t __rte_noinline __rte_hot \ 96 ssows_deq_ ##name(void *port, struct rte_event *ev, uint64_t timeout_ticks) \ 97 { \ 98 struct ssows *ws = port; \ 99 \ 100 RTE_SET_USED(timeout_ticks); \ 101 \ 102 if (ws->swtag_req) { \ 103 ws->swtag_req = 0; \ 104 ssows_swtag_wait(ws); \ 105 return 1; \ 106 } else { \ 107 return ssows_get_work(ws, ev, flags); \ 108 } \ 109 } \ 110 \ 111 static uint16_t __rte_hot \ 112 ssows_deq_burst_ ##name(void *port, struct rte_event ev[], \ 113 uint16_t nb_events, uint64_t timeout_ticks) \ 114 { \ 115 RTE_SET_USED(nb_events); \ 116 \ 117 return ssows_deq_ ##name(port, ev, timeout_ticks); \ 118 } \ 119 \ 120 static uint16_t __rte_hot \ 121 ssows_deq_timeout_ ##name(void *port, struct rte_event *ev, \ 122 uint64_t timeout_ticks) \ 123 { \ 124 struct ssows *ws = port; \ 125 uint64_t iter; \ 126 uint16_t ret = 1; \ 127 \ 128 if (ws->swtag_req) { \ 129 ws->swtag_req = 0; \ 130 ssows_swtag_wait(ws); \ 131 } else { \ 132 ret = ssows_get_work(ws, ev, flags); \ 133 for (iter = 1; iter < timeout_ticks && (ret == 0); iter++) \ 134 ret = ssows_get_work(ws, ev, flags); \ 135 } \ 136 return ret; \ 137 } \ 138 \ 139 static uint16_t __rte_hot \ 140 ssows_deq_timeout_burst_ ##name(void *port, struct rte_event ev[], \ 141 uint16_t nb_events, uint64_t timeout_ticks) \ 142 { \ 143 RTE_SET_USED(nb_events); \ 144 \ 145 return ssows_deq_timeout_ ##name(port, ev, timeout_ticks); \ 146 } 147 148 SSO_RX_ADPTR_ENQ_FASTPATH_FUNC 149 #undef R 150 151 uint16_t __rte_hot 152 ssows_enq_burst(void *port, const struct rte_event ev[], uint16_t nb_events) 153 { 154 struct ssows *ws = port; 155 uint16_t ret = 1; 156 157 RTE_SET_USED(nb_events); 158 159 switch (ev->op) { 160 case RTE_EVENT_OP_NEW: 161 rte_smp_wmb(); 162 ssows_new_event(ws, ev); 163 break; 164 case RTE_EVENT_OP_FORWARD: 165 ssows_forward_event(ws, ev); 166 break; 167 case RTE_EVENT_OP_RELEASE: 168 ssows_release_event(ws); 169 break; 170 default: 171 ret = 0; 172 } 173 return ret; 174 } 175 176 uint16_t __rte_hot 177 ssows_enq_new_burst(void *port, const struct rte_event ev[], uint16_t nb_events) 178 { 179 uint16_t i; 180 struct ssows *ws = port; 181 182 rte_smp_wmb(); 183 for (i = 0; i < nb_events; i++) 184 ssows_new_event(ws, &ev[i]); 185 186 return nb_events; 187 } 188 189 uint16_t __rte_hot 190 ssows_enq_fwd_burst(void *port, const struct rte_event ev[], uint16_t nb_events) 191 { 192 struct ssows *ws = port; 193 RTE_SET_USED(nb_events); 194 195 ssows_forward_event(ws, ev); 196 197 return 1; 198 } 199 200 void 201 ssows_flush_events(struct ssows *ws, uint8_t queue_id, 202 ssows_handle_event_t fn, void *arg) 203 { 204 uint32_t reg_off; 205 struct rte_event ev; 206 uint64_t enable, aq_cnt = 1, cq_ds_cnt = 1; 207 uint64_t get_work0, get_work1; 208 uint64_t sched_type_queue; 209 uint8_t *base = ssovf_bar(OCTEONTX_SSO_GROUP, queue_id, 0); 210 211 enable = ssovf_read64(base + SSO_VHGRP_QCTL); 212 if (!enable) 213 return; 214 215 reg_off = SSOW_VHWS_OP_GET_WORK0; 216 reg_off |= 1 << 17; /* Grouped */ 217 reg_off |= 1 << 16; /* WAIT */ 218 reg_off |= queue_id << 4; /* INDEX_GGRP_MASK(group number) */ 219 while (aq_cnt || cq_ds_cnt) { 220 aq_cnt = ssovf_read64(base + SSO_VHGRP_AQ_CNT); 221 cq_ds_cnt = ssovf_read64(base + SSO_VHGRP_INT_CNT); 222 /* Extract cq and ds count */ 223 cq_ds_cnt &= 0x1FFF1FFF0000; 224 225 ssovf_load_pair(get_work0, get_work1, ws->base + reg_off); 226 227 sched_type_queue = (get_work0 >> 32) & 0xfff; 228 ws->cur_tt = sched_type_queue & 0x3; 229 ws->cur_grp = sched_type_queue >> 2; 230 sched_type_queue = sched_type_queue << 38; 231 ev.event = sched_type_queue | (get_work0 & 0xffffffff); 232 if (get_work1 && ev.event_type == RTE_EVENT_TYPE_ETHDEV) 233 ev.mbuf = ssovf_octeontx_wqe_to_pkt(get_work1, 234 (ev.event >> 20) & 0x7F, 235 OCCTX_RX_OFFLOAD_NONE | 236 OCCTX_RX_MULTI_SEG_F, 237 ws->lookup_mem); 238 else 239 ev.u64 = get_work1; 240 241 if (fn != NULL && ev.u64 != 0) 242 fn(arg, ev); 243 } 244 } 245 246 void 247 ssows_reset(struct ssows *ws) 248 { 249 uint64_t tag; 250 uint64_t pend_tag; 251 uint8_t pend_tt; 252 uint8_t tt; 253 254 tag = ssovf_read64(ws->base + SSOW_VHWS_TAG); 255 pend_tag = ssovf_read64(ws->base + SSOW_VHWS_PENDTAG); 256 257 if (pend_tag & (1ULL << 63)) { /* Tagswitch pending */ 258 pend_tt = (pend_tag >> 32) & 0x3; 259 if (pend_tt == SSO_SYNC_ORDERED || pend_tt == SSO_SYNC_ATOMIC) 260 ssows_desched(ws); 261 } else { 262 tt = (tag >> 32) & 0x3; 263 if (tt == SSO_SYNC_ORDERED || tt == SSO_SYNC_ATOMIC) 264 ssows_swtag_untag(ws); 265 } 266 } 267 268 static __rte_always_inline uint16_t 269 __sso_event_tx_adapter_enqueue(void *port, struct rte_event ev[], 270 uint16_t nb_events, uint64_t *cmd, 271 const uint16_t flag) 272 { 273 uint16_t port_id; 274 uint16_t queue_id; 275 struct rte_mbuf *m; 276 struct rte_eth_dev *ethdev; 277 struct ssows *ws = port; 278 struct octeontx_txq *txq; 279 280 RTE_SET_USED(nb_events); 281 switch (ev->sched_type) { 282 case SSO_SYNC_ORDERED: 283 ssows_swtag_norm(ws, ev->event, SSO_SYNC_ATOMIC); 284 rte_io_wmb(); 285 ssows_swtag_wait(ws); 286 break; 287 case SSO_SYNC_UNTAGGED: 288 ssows_swtag_full(ws, ev->u64, ev->event, SSO_SYNC_ATOMIC, 289 ev->queue_id); 290 rte_io_wmb(); 291 ssows_swtag_wait(ws); 292 break; 293 case SSO_SYNC_ATOMIC: 294 rte_io_wmb(); 295 break; 296 } 297 298 m = ev[0].mbuf; 299 port_id = m->port; 300 queue_id = rte_event_eth_tx_adapter_txq_get(m); 301 ethdev = &rte_eth_devices[port_id]; 302 txq = ethdev->data->tx_queues[queue_id]; 303 304 return __octeontx_xmit_pkts(txq, &m, 1, cmd, flag); 305 } 306 307 #define T(name, f3, f2, f1, f0, sz, flags) \ 308 static uint16_t __rte_noinline __rte_hot \ 309 sso_event_tx_adapter_enqueue_ ## name(void *port, struct rte_event ev[], \ 310 uint16_t nb_events) \ 311 { \ 312 uint64_t cmd[sz]; \ 313 return __sso_event_tx_adapter_enqueue(port, ev, nb_events, cmd, \ 314 flags); \ 315 } 316 317 SSO_TX_ADPTR_ENQ_FASTPATH_FUNC 318 #undef T 319 320 static uint16_t __rte_hot 321 ssow_crypto_adapter_enqueue(void *port, struct rte_event ev[], 322 uint16_t nb_events) 323 { 324 RTE_SET_USED(nb_events); 325 326 return otx_crypto_adapter_enqueue(port, ev->event_ptr); 327 } 328 329 void 330 ssovf_fastpath_fns_set(struct rte_eventdev *dev) 331 { 332 struct ssovf_evdev *edev = ssovf_pmd_priv(dev); 333 334 dev->enqueue_burst = ssows_enq_burst; 335 dev->enqueue_new_burst = ssows_enq_new_burst; 336 dev->enqueue_forward_burst = ssows_enq_fwd_burst; 337 338 dev->ca_enqueue = ssow_crypto_adapter_enqueue; 339 340 const event_tx_adapter_enqueue_t ssow_txa_enqueue[2][2][2][2] = { 341 #define T(name, f3, f2, f1, f0, sz, flags) \ 342 [f3][f2][f1][f0] = sso_event_tx_adapter_enqueue_ ##name, 343 344 SSO_TX_ADPTR_ENQ_FASTPATH_FUNC 345 #undef T 346 }; 347 348 dev->txa_enqueue = ssow_txa_enqueue 349 [!!(edev->tx_offload_flags & OCCTX_TX_OFFLOAD_MBUF_NOFF_F)] 350 [!!(edev->tx_offload_flags & OCCTX_TX_OFFLOAD_OL3_OL4_CSUM_F)] 351 [!!(edev->tx_offload_flags & OCCTX_TX_OFFLOAD_L3_L4_CSUM_F)] 352 [!!(edev->tx_offload_flags & OCCTX_TX_MULTI_SEG_F)]; 353 354 dev->txa_enqueue_same_dest = dev->txa_enqueue; 355 356 /* Assigning dequeue func pointers */ 357 const event_dequeue_burst_t ssow_deq_burst[2][2][2] = { 358 #define R(name, f2, f1, f0, flags) \ 359 [f2][f1][f0] = ssows_deq_burst_ ##name, 360 361 SSO_RX_ADPTR_ENQ_FASTPATH_FUNC 362 #undef R 363 }; 364 365 dev->dequeue_burst = ssow_deq_burst 366 [!!(edev->rx_offload_flags & OCCTX_RX_VLAN_FLTR_F)] 367 [!!(edev->rx_offload_flags & OCCTX_RX_OFFLOAD_CSUM_F)] 368 [!!(edev->rx_offload_flags & OCCTX_RX_MULTI_SEG_F)]; 369 370 if (edev->is_timeout_deq) { 371 const event_dequeue_burst_t ssow_deq_timeout_burst[2][2][2] = { 372 #define R(name, f2, f1, f0, flags) \ 373 [f2][f1][f0] = ssows_deq_timeout_burst_ ##name, 374 375 SSO_RX_ADPTR_ENQ_FASTPATH_FUNC 376 #undef R 377 }; 378 379 dev->dequeue_burst = ssow_deq_timeout_burst 380 [!!(edev->rx_offload_flags & OCCTX_RX_VLAN_FLTR_F)] 381 [!!(edev->rx_offload_flags & OCCTX_RX_OFFLOAD_CSUM_F)] 382 [!!(edev->rx_offload_flags & OCCTX_RX_MULTI_SEG_F)]; 383 } 384 } 385 386 static void 387 octeontx_create_rx_ol_flags_array(void *mem) 388 { 389 uint16_t idx, errcode, errlev; 390 uint32_t val, *ol_flags; 391 392 /* Skip ptype array memory */ 393 ol_flags = (uint32_t *)mem; 394 395 for (idx = 0; idx < BIT(ERRCODE_ERRLEN_WIDTH); idx++) { 396 errcode = idx & 0xff; 397 errlev = (idx & 0x700) >> 8; 398 399 val = RTE_MBUF_F_RX_IP_CKSUM_UNKNOWN; 400 val |= RTE_MBUF_F_RX_L4_CKSUM_UNKNOWN; 401 val |= RTE_MBUF_F_RX_OUTER_L4_CKSUM_UNKNOWN; 402 403 switch (errlev) { 404 case OCCTX_ERRLEV_RE: 405 if (errcode) { 406 val |= RTE_MBUF_F_RX_IP_CKSUM_BAD; 407 val |= RTE_MBUF_F_RX_L4_CKSUM_BAD; 408 } else { 409 val |= RTE_MBUF_F_RX_IP_CKSUM_GOOD; 410 val |= RTE_MBUF_F_RX_L4_CKSUM_GOOD; 411 } 412 break; 413 case OCCTX_ERRLEV_LC: 414 if (errcode == OCCTX_EC_IP4_CSUM) { 415 val |= RTE_MBUF_F_RX_IP_CKSUM_BAD; 416 val |= RTE_MBUF_F_RX_OUTER_IP_CKSUM_BAD; 417 } else { 418 val |= RTE_MBUF_F_RX_IP_CKSUM_GOOD; 419 } 420 break; 421 case OCCTX_ERRLEV_LD: 422 /* Check if parsed packet is neither IPv4 or IPV6 */ 423 if (errcode == OCCTX_EC_IP4_NOT) 424 break; 425 val |= RTE_MBUF_F_RX_IP_CKSUM_GOOD; 426 if (errcode == OCCTX_EC_L4_CSUM) 427 val |= RTE_MBUF_F_RX_OUTER_L4_CKSUM_BAD; 428 else 429 val |= RTE_MBUF_F_RX_L4_CKSUM_GOOD; 430 break; 431 case OCCTX_ERRLEV_LE: 432 if (errcode == OCCTX_EC_IP4_CSUM) 433 val |= RTE_MBUF_F_RX_IP_CKSUM_BAD; 434 else 435 val |= RTE_MBUF_F_RX_IP_CKSUM_GOOD; 436 break; 437 case OCCTX_ERRLEV_LF: 438 /* Check if parsed packet is neither IPv4 or IPV6 */ 439 if (errcode == OCCTX_EC_IP4_NOT) 440 break; 441 val |= RTE_MBUF_F_RX_IP_CKSUM_GOOD; 442 if (errcode == OCCTX_EC_L4_CSUM) 443 val |= RTE_MBUF_F_RX_L4_CKSUM_BAD; 444 else 445 val |= RTE_MBUF_F_RX_L4_CKSUM_GOOD; 446 break; 447 } 448 449 ol_flags[idx] = val; 450 } 451 } 452 453 void * 454 octeontx_fastpath_lookup_mem_get(void) 455 { 456 const char name[] = OCCTX_FASTPATH_LOOKUP_MEM; 457 const struct rte_memzone *mz; 458 void *mem; 459 460 mz = rte_memzone_lookup(name); 461 if (mz != NULL) 462 return mz->addr; 463 464 /* Request for the first time */ 465 mz = rte_memzone_reserve_aligned(name, LOOKUP_ARRAY_SZ, 466 SOCKET_ID_ANY, 0, OCCTX_ALIGN); 467 if (mz != NULL) { 468 mem = mz->addr; 469 /* Form the rx ol_flags based on errcode */ 470 octeontx_create_rx_ol_flags_array(mem); 471 return mem; 472 } 473 return NULL; 474 } 475