1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2012, 2015 Chelsio Communications, Inc. 5 * All rights reserved. 6 * Written by: Navdeep Parhar <np@FreeBSD.org> 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 */ 30 31 #ifndef __T4_TOM_H__ 32 #define __T4_TOM_H__ 33 #include <sys/vmem.h> 34 #include "common/t4_hw.h" 35 #include "common/t4_msg.h" 36 #include "tom/t4_tls.h" 37 38 #define LISTEN_HASH_SIZE 32 39 40 /* 41 * Min receive window. We want it to be large enough to accommodate receive 42 * coalescing, handle jumbo frames, and not trigger sender SWS avoidance. 43 */ 44 #define MIN_RCV_WND (24 * 1024U) 45 46 /* 47 * Max receive window supported by HW in bytes. Only a small part of it can 48 * be set through option0, the rest needs to be set through RX_DATA_ACK. 49 */ 50 #define MAX_RCV_WND ((1U << 27) - 1) 51 52 #define DDP_RSVD_WIN (16 * 1024U) 53 #define SB_DDP_INDICATE SB_IN_TOE /* soreceive must respond to indicate */ 54 55 #define USE_DDP_RX_FLOW_CONTROL 56 57 #define PPOD_SZ(n) ((n) * sizeof(struct pagepod)) 58 #define PPOD_SIZE (PPOD_SZ(1)) 59 60 /* TOE PCB flags */ 61 enum { 62 TPF_ATTACHED = (1 << 0), /* a tcpcb refers to this toepcb */ 63 TPF_FLOWC_WR_SENT = (1 << 1), /* firmware flow context WR sent */ 64 TPF_TX_DATA_SENT = (1 << 2), /* some data sent */ 65 TPF_TX_SUSPENDED = (1 << 3), /* tx suspended for lack of resources */ 66 TPF_SEND_FIN = (1 << 4), /* send FIN after all pending data */ 67 TPF_FIN_SENT = (1 << 5), /* FIN has been sent */ 68 TPF_ABORT_SHUTDOWN = (1 << 6), /* connection abort is in progress */ 69 TPF_CPL_PENDING = (1 << 7), /* haven't received the last CPL */ 70 TPF_SYNQE = (1 << 8), /* synq_entry, not really a toepcb */ 71 TPF_SYNQE_EXPANDED = (1 << 9), /* toepcb ready, tid context updated */ 72 TPF_TLS_STARTING = (1 << 10), /* starting TLS receive */ 73 TPF_KTLS = (1 << 11), /* send TLS records from KTLS */ 74 TPF_INITIALIZED = (1 << 12), /* init_toepcb has been called */ 75 TPF_TLS_RECEIVE = (1 << 13), /* should receive TLS records */ 76 TPF_TLS_RX_QUIESCING = (1 << 14), /* RX quiesced for TLS RX startup */ 77 TPF_TLS_RX_QUIESCED = (1 << 15), /* RX quiesced for TLS RX startup */ 78 TPF_WAITING_FOR_FINAL = (1<< 16), /* waiting for wakeup on final CPL */ 79 TPF_IN_TOEP_LIST = (1 << 17), /* toep is in the main td->toep_list */ 80 }; 81 82 enum { 83 DDP_OK = (1 << 0), /* OK to turn on DDP */ 84 DDP_SC_REQ = (1 << 1), /* state change (on/off) requested */ 85 DDP_ON = (1 << 2), /* DDP is turned on */ 86 DDP_BUF0_ACTIVE = (1 << 3), /* buffer 0 in use (not invalidated) */ 87 DDP_BUF1_ACTIVE = (1 << 4), /* buffer 1 in use (not invalidated) */ 88 DDP_TASK_ACTIVE = (1 << 5), /* requeue task is queued / running */ 89 DDP_DEAD = (1 << 6), /* toepcb is shutting down */ 90 DDP_AIO = (1 << 7), /* DDP used for AIO, not so_rcv */ 91 DDP_RCVBUF = (1 << 8), /* DDP used for so_rcv, not AIO */ 92 }; 93 94 struct bio; 95 struct ctl_sg_entry; 96 struct sockopt; 97 struct offload_settings; 98 99 /* 100 * Connection parameters for an offloaded connection. These are mostly (but not 101 * all) hardware TOE parameters. 102 */ 103 struct conn_params { 104 int8_t rx_coalesce; 105 int8_t cong_algo; 106 int8_t tc_idx; 107 int8_t tstamp; 108 int8_t sack; 109 int8_t nagle; 110 int8_t keepalive; 111 int8_t wscale; 112 int8_t ecn; 113 int8_t mtu_idx; 114 int8_t ulp_mode; 115 int8_t tx_align; 116 int8_t ctrlq_idx; /* ctrlq = &sc->sge.ctrlq[ctrlq_idx] */ 117 int16_t txq_idx; /* ofld_txq = &sc->sge.ofld_txq[txq_idx] */ 118 int16_t rxq_idx; /* ofld_rxq = &sc->sge.ofld_rxq[rxq_idx] */ 119 int16_t l2t_idx; 120 uint16_t emss; 121 uint16_t opt0_bufsize; 122 u_int sndbuf; /* controls TP tx pages */ 123 }; 124 125 struct ofld_tx_sdesc { 126 uint32_t plen : 26; /* payload length */ 127 uint32_t tx_credits : 6; /* firmware tx credits (unit is 16B) */ 128 }; 129 130 #define MAX_OFLD_TX_SDESC_PLEN ((1u << 26) - 1) 131 #define MAX_OFLD_TX_SDESC_CREDITS ((1u << 6) - 1) 132 133 struct ppod_region { 134 u_int pr_start; 135 u_int pr_len; 136 u_int pr_page_shift[4]; 137 uint32_t pr_tag_mask; /* hardware tagmask for this region. */ 138 uint32_t pr_invalid_bit; /* OR with this to invalidate tag. */ 139 uint32_t pr_alias_mask; /* AND with tag to get alias bits. */ 140 u_int pr_alias_shift; /* shift this much for first alias bit. */ 141 vmem_t *pr_arena; 142 }; 143 144 struct ppod_reservation { 145 struct ppod_region *prsv_pr; 146 uint32_t prsv_tag; /* Full tag: pgsz, alias, tag, color */ 147 u_int prsv_nppods; 148 }; 149 150 struct pageset { 151 TAILQ_ENTRY(pageset) link; 152 vm_page_t *pages; 153 int npages; 154 int flags; 155 int offset; /* offset in first page */ 156 int len; 157 struct ppod_reservation prsv; 158 struct vmspace *vm; 159 vm_offset_t start; 160 u_int vm_timestamp; 161 }; 162 163 TAILQ_HEAD(pagesetq, pageset); 164 165 #define PS_PPODS_WRITTEN 0x0001 /* Page pods written to the card. */ 166 167 struct ddp_rcv_buffer { 168 TAILQ_ENTRY(ddp_rcv_buffer) link; 169 void *buf; 170 struct ppod_reservation prsv; 171 size_t len; 172 u_int refs; 173 }; 174 175 struct ddp_buffer { 176 union { 177 /* DDP_AIO fields */ 178 struct { 179 struct pageset *ps; 180 struct kaiocb *job; 181 int cancel_pending; 182 }; 183 184 /* DDP_RCVBUF fields */ 185 struct { 186 struct ddp_rcv_buffer *drb; 187 uint32_t placed; 188 }; 189 }; 190 }; 191 192 /* 193 * (a) - DDP_AIO only 194 * (r) - DDP_RCVBUF only 195 */ 196 struct ddp_pcb { 197 struct mtx lock; 198 u_int flags; 199 int active_id; /* the currently active DDP buffer */ 200 struct ddp_buffer db[2]; 201 union { 202 TAILQ_HEAD(, pageset) cached_pagesets; /* (a) */ 203 TAILQ_HEAD(, ddp_rcv_buffer) cached_buffers; /* (r) */ 204 }; 205 TAILQ_HEAD(, kaiocb) aiojobq; /* (a) */ 206 u_int waiting_count; /* (a) */ 207 u_int active_count; 208 u_int cached_count; 209 struct task requeue_task; 210 struct kaiocb *queueing; /* (a) */ 211 struct mtx cache_lock; /* (r) */ 212 }; 213 214 struct toepcb { 215 struct tom_data *td; 216 struct inpcb *inp; /* backpointer to host stack's PCB */ 217 u_int flags; /* miscellaneous flags */ 218 TAILQ_ENTRY(toepcb) link; /* toep_list or stranded_toep_list */ 219 int refcount; 220 struct vnet *vnet; 221 struct vi_info *vi; /* virtual interface */ 222 struct sge_ofld_txq *ofld_txq; 223 struct sge_ofld_rxq *ofld_rxq; 224 struct sge_wrq *ctrlq; 225 struct l2t_entry *l2te; /* L2 table entry used by this connection */ 226 struct clip_entry *ce; /* CLIP table entry used by this tid */ 227 int tid; /* Connection identifier */ 228 int incarnation; /* sc->incarnation when toepcb was allocated */ 229 230 /* tx credit handling */ 231 u_int tx_total; /* total tx WR credits (in 16B units) */ 232 u_int tx_credits; /* tx WR credits (in 16B units) available */ 233 u_int tx_nocompl; /* tx WR credits since last compl request */ 234 u_int plen_nocompl; /* payload since last compl request */ 235 236 struct conn_params params; 237 238 void *ulpcb; 239 void *ulpcb2; 240 struct mbufq ulp_pduq; /* PDUs waiting to be sent out. */ 241 struct mbufq ulp_pdu_reclaimq; 242 243 struct ddp_pcb ddp; 244 struct tls_ofld_info tls; 245 246 TAILQ_HEAD(, kaiocb) aiotx_jobq; 247 struct task aiotx_task; 248 struct socket *aiotx_so; 249 250 /* Tx software descriptor */ 251 uint8_t txsd_total; 252 uint8_t txsd_pidx; 253 uint8_t txsd_cidx; 254 uint8_t txsd_avail; 255 struct ofld_tx_sdesc txsd[]; 256 }; 257 258 static inline int 259 ulp_mode(struct toepcb *toep) 260 { 261 262 return (toep->params.ulp_mode); 263 } 264 265 #define DDP_LOCK(toep) mtx_lock(&(toep)->ddp.lock) 266 #define DDP_UNLOCK(toep) mtx_unlock(&(toep)->ddp.lock) 267 #define DDP_ASSERT_LOCKED(toep) mtx_assert(&(toep)->ddp.lock, MA_OWNED) 268 #define DDP_CACHE_LOCK(toep) mtx_lock(&(toep)->ddp.cache_lock) 269 #define DDP_CACHE_UNLOCK(toep) mtx_unlock(&(toep)->ddp.cache_lock) 270 271 /* 272 * Compressed state for embryonic connections for a listener. 273 */ 274 struct synq_entry { 275 struct listen_ctx *lctx; /* backpointer to listen ctx */ 276 struct mbuf *syn; 277 int flags; /* same as toepcb's tp_flags */ 278 TAILQ_ENTRY(synq_entry) link; /* synqe_list */ 279 volatile int ok_to_respond; 280 volatile u_int refcnt; 281 int tid; 282 uint32_t iss; 283 uint32_t irs; 284 uint32_t ts; 285 uint32_t rss_hash; 286 __be16 tcp_opt; /* from cpl_pass_establish */ 287 int incarnation; 288 struct toepcb *toep; 289 290 struct conn_params params; 291 }; 292 293 /* listen_ctx flags */ 294 #define LCTX_RPL_PENDING 1 /* waiting for a CPL_PASS_OPEN_RPL */ 295 #define LCTX_SETUP_IN_HW 2 /* stid entry is setup in hardware */ 296 297 struct listen_ctx { 298 LIST_ENTRY(listen_ctx) link; /* listen hash linkage */ 299 volatile int refcount; 300 int stid; 301 int flags; 302 bool isipv6; 303 struct inpcb *inp; /* listening socket's inp */ 304 struct vnet *vnet; 305 struct sge_wrq *ctrlq; 306 struct sge_ofld_rxq *ofld_rxq; 307 struct clip_entry *ce; 308 }; 309 310 /* tcb_histent flags */ 311 #define TE_RPL_PENDING 1 312 #define TE_ACTIVE 2 313 314 /* bits in one 8b tcb_histent sample. */ 315 #define TS_RTO (1 << 0) 316 #define TS_DUPACKS (1 << 1) 317 #define TS_FASTREXMT (1 << 2) 318 #define TS_SND_BACKLOGGED (1 << 3) 319 #define TS_CWND_LIMITED (1 << 4) 320 #define TS_ECN_ECE (1 << 5) 321 #define TS_ECN_CWR (1 << 6) 322 #define TS_RESERVED (1 << 7) /* Unused. */ 323 324 struct tcb_histent { 325 struct mtx te_lock; 326 struct callout te_callout; 327 uint64_t te_tcb[TCB_SIZE / sizeof(uint64_t)]; 328 struct adapter *te_adapter; 329 u_int te_flags; 330 u_int te_tid; 331 uint8_t te_pidx; 332 uint8_t te_sample[100]; 333 }; 334 335 struct tom_data { 336 struct toedev tod; 337 338 /* toepcb's associated with this TOE device */ 339 struct mtx toep_list_lock; 340 TAILQ_HEAD(, toepcb) toep_list; 341 TAILQ_HEAD(, synq_entry) synqe_list; 342 /* List of tids left stranded because hw stopped abruptly. */ 343 TAILQ_HEAD(, toepcb) stranded_atids; 344 TAILQ_HEAD(, toepcb) stranded_tids; 345 TAILQ_HEAD(, synq_entry) stranded_synqe; 346 struct task cleanup_stranded_tids; 347 348 struct mtx lctx_hash_lock; 349 LIST_HEAD(, listen_ctx) *listen_hash; 350 u_long listen_mask; 351 int lctx_count; /* # of lctx in the hash table */ 352 353 struct ppod_region pr; 354 355 struct rwlock tcb_history_lock __aligned(CACHE_LINE_SIZE); 356 struct tcb_histent **tcb_history; 357 int dupack_threshold; 358 359 /* WRs that will not be sent to the chip because L2 resolution failed */ 360 struct mtx unsent_wr_lock; 361 STAILQ_HEAD(, wrqe) unsent_wr_list; 362 struct task reclaim_wr_resources; 363 }; 364 365 static inline struct tom_data * 366 tod_td(struct toedev *tod) 367 { 368 369 return (__containerof(tod, struct tom_data, tod)); 370 } 371 372 static inline struct adapter * 373 td_adapter(struct tom_data *td) 374 { 375 376 return (td->tod.tod_softc); 377 } 378 379 static inline void 380 set_mbuf_raw_wr(struct mbuf *m, bool raw) 381 { 382 383 M_ASSERTPKTHDR(m); 384 m->m_pkthdr.PH_per.eight[6] = raw; 385 } 386 387 static inline bool 388 mbuf_raw_wr(struct mbuf *m) 389 { 390 391 M_ASSERTPKTHDR(m); 392 return (m->m_pkthdr.PH_per.eight[6]); 393 } 394 395 static inline void 396 set_mbuf_ulp_submode(struct mbuf *m, uint8_t ulp_submode) 397 { 398 399 M_ASSERTPKTHDR(m); 400 m->m_pkthdr.PH_per.eight[0] = ulp_submode; 401 } 402 403 static inline uint8_t 404 mbuf_ulp_submode(struct mbuf *m) 405 { 406 407 M_ASSERTPKTHDR(m); 408 return (m->m_pkthdr.PH_per.eight[0]); 409 } 410 411 static inline void 412 set_mbuf_iscsi_iso(struct mbuf *m, bool iso) 413 { 414 415 M_ASSERTPKTHDR(m); 416 m->m_pkthdr.PH_per.eight[1] = iso; 417 } 418 419 static inline bool 420 mbuf_iscsi_iso(struct mbuf *m) 421 { 422 423 M_ASSERTPKTHDR(m); 424 return (m->m_pkthdr.PH_per.eight[1]); 425 } 426 427 /* Flags for iSCSI segmentation offload. */ 428 #define CXGBE_ISO_TYPE(flags) ((flags) & 0x3) 429 #define CXGBE_ISO_F 0x4 430 431 static inline void 432 set_mbuf_iscsi_iso_flags(struct mbuf *m, uint8_t flags) 433 { 434 435 M_ASSERTPKTHDR(m); 436 m->m_pkthdr.PH_per.eight[2] = flags; 437 } 438 439 static inline uint8_t 440 mbuf_iscsi_iso_flags(struct mbuf *m) 441 { 442 443 M_ASSERTPKTHDR(m); 444 return (m->m_pkthdr.PH_per.eight[2]); 445 } 446 447 static inline void 448 set_mbuf_iscsi_iso_mss(struct mbuf *m, uint16_t mss) 449 { 450 451 M_ASSERTPKTHDR(m); 452 m->m_pkthdr.PH_per.sixteen[2] = mss; 453 } 454 455 static inline uint16_t 456 mbuf_iscsi_iso_mss(struct mbuf *m) 457 { 458 459 M_ASSERTPKTHDR(m); 460 return (m->m_pkthdr.PH_per.sixteen[2]); 461 } 462 463 /* t4_tom.c */ 464 struct toepcb *alloc_toepcb(struct vi_info *, int); 465 int init_toepcb(struct vi_info *, struct toepcb *); 466 struct toepcb *hold_toepcb(struct toepcb *); 467 void free_toepcb(struct toepcb *); 468 void offload_socket(struct socket *, struct toepcb *); 469 void restore_so_proto(struct socket *, bool); 470 void undo_offload_socket(struct socket *); 471 void final_cpl_received(struct toepcb *); 472 void insert_tid(struct adapter *, int, void *, int); 473 void *lookup_tid(struct adapter *, int); 474 void update_tid(struct adapter *, int, void *); 475 void remove_tid(struct adapter *, int, int); 476 u_long select_rcv_wnd(struct socket *); 477 int select_rcv_wscale(void); 478 void init_conn_params(struct vi_info *, struct offload_settings *, 479 struct in_conninfo *, struct socket *, const struct tcp_options *, int16_t, 480 struct conn_params *cp); 481 void update_tid_qid_sel(struct vi_info *, struct conn_params *, int); 482 __be64 calc_options0(struct vi_info *, struct conn_params *); 483 __be32 calc_options2(struct vi_info *, struct conn_params *); 484 uint64_t select_ntuple(struct vi_info *, struct l2t_entry *); 485 int negative_advice(int); 486 int add_tid_to_history(struct adapter *, u_int); 487 struct adapter *find_offload_adapter(struct socket *); 488 void send_txdataplen_max_flowc_wr(struct adapter *, struct toepcb *, int); 489 void t4_pcb_detach(struct toedev *, struct tcpcb *); 490 491 /* t4_connect.c */ 492 void t4_init_connect_cpl_handlers(void); 493 void t4_uninit_connect_cpl_handlers(void); 494 int t4_connect(struct toedev *, struct socket *, struct nhop_object *, 495 struct sockaddr *); 496 void act_open_failure_cleanup(struct adapter *, struct toepcb *, u_int); 497 498 /* t4_listen.c */ 499 void t4_init_listen_cpl_handlers(void); 500 void t4_uninit_listen_cpl_handlers(void); 501 int t4_listen_start(struct toedev *, struct tcpcb *); 502 int t4_listen_stop(struct toedev *, struct tcpcb *); 503 void t4_syncache_added(struct toedev *, void *); 504 void t4_syncache_removed(struct toedev *, void *); 505 int t4_syncache_respond(struct toedev *, void *, struct mbuf *); 506 int do_abort_req_synqe(struct sge_iq *, const struct rss_header *, 507 struct mbuf *); 508 int do_abort_rpl_synqe(struct sge_iq *, const struct rss_header *, 509 struct mbuf *); 510 void t4_offload_socket(struct toedev *, void *, struct socket *); 511 void synack_failure_cleanup(struct adapter *, struct synq_entry *); 512 int alloc_stid_tab(struct adapter *); 513 void free_stid_tab(struct adapter *); 514 void stop_stid_tab(struct adapter *); 515 void restart_stid_tab(struct adapter *); 516 517 /* t4_cpl_io.c */ 518 void aiotx_init_toep(struct toepcb *); 519 int t4_aio_queue_aiotx(struct socket *, struct kaiocb *); 520 void t4_init_cpl_io_handlers(void); 521 void t4_uninit_cpl_io_handlers(void); 522 void send_abort_rpl(struct adapter *, struct sge_ofld_txq *, int , int); 523 void send_flowc_wr(struct toepcb *, struct tcpcb *); 524 void send_reset(struct adapter *, struct toepcb *, uint32_t); 525 int send_rx_credits(struct adapter *, struct toepcb *, int); 526 void make_established(struct toepcb *, uint32_t, uint32_t, uint16_t); 527 int t4_close_conn(struct adapter *, struct toepcb *); 528 void t4_rcvd(struct toedev *, struct tcpcb *); 529 void t4_rcvd_locked(struct toedev *, struct tcpcb *); 530 int t4_tod_output(struct toedev *, struct tcpcb *); 531 int t4_send_fin(struct toedev *, struct tcpcb *); 532 int t4_send_rst(struct toedev *, struct tcpcb *); 533 void t4_set_tcb_field(struct adapter *, struct sge_wrq *, struct toepcb *, 534 uint16_t, uint64_t, uint64_t, int, int); 535 void t4_push_pdus(struct adapter *, struct toepcb *, int); 536 bool t4_push_raw_wr(struct adapter *, struct toepcb *, struct mbuf *); 537 void t4_raw_wr_tx(struct adapter *, struct toepcb *, struct mbuf *); 538 void write_set_tcb_field(struct adapter *, void *, struct toepcb *, uint16_t, 539 uint64_t, uint64_t, int, int); 540 541 /* t4_ddp.c */ 542 int t4_init_ppod_region(struct ppod_region *, struct t4_range *, u_int, 543 const char *); 544 void t4_free_ppod_region(struct ppod_region *); 545 int t4_alloc_page_pods_for_ps(struct ppod_region *, struct pageset *); 546 int t4_alloc_page_pods_for_bio(struct ppod_region *, struct bio *, 547 struct ppod_reservation *); 548 int t4_alloc_page_pods_for_buf(struct ppod_region *, vm_offset_t, int, 549 struct ppod_reservation *); 550 int t4_alloc_page_pods_for_sgl(struct ppod_region *, struct ctl_sg_entry *, int, 551 struct ppod_reservation *); 552 int t4_write_page_pods_for_ps(struct adapter *, struct sge_wrq *, int, 553 struct pageset *); 554 int t4_write_page_pods_for_bio(struct adapter *, struct toepcb *, 555 struct ppod_reservation *, struct bio *, struct mbufq *); 556 int t4_write_page_pods_for_buf(struct adapter *, struct toepcb *, 557 struct ppod_reservation *, vm_offset_t, int, struct mbufq *); 558 int t4_write_page_pods_for_sgl(struct adapter *, struct toepcb *, 559 struct ppod_reservation *, struct ctl_sg_entry *, int, int, struct mbufq *); 560 void t4_free_page_pods(struct ppod_reservation *); 561 int t4_aio_queue_ddp(struct socket *, struct kaiocb *); 562 int t4_enable_ddp_rcv(struct socket *, struct toepcb *); 563 void t4_ddp_mod_load(void); 564 void t4_ddp_mod_unload(void); 565 struct mbuf *alloc_raw_wr_mbuf(int); 566 void ddp_assert_empty(struct toepcb *); 567 void ddp_uninit_toep(struct toepcb *); 568 void ddp_queue_toep(struct toepcb *); 569 void release_ddp_resources(struct toepcb *toep); 570 void handle_ddp_close(struct toepcb *, struct tcpcb *, uint32_t); 571 void handle_ddp_indicate(struct toepcb *); 572 void insert_ddp_data(struct toepcb *, uint32_t); 573 const struct offload_settings *lookup_offload_policy(struct adapter *, int, 574 struct mbuf *, uint16_t, struct inpcb *); 575 576 /* t4_tls.c */ 577 bool can_tls_offload(struct adapter *); 578 void do_rx_data_tls(const struct cpl_rx_data *, struct toepcb *, struct mbuf *); 579 void t4_push_ktls(struct adapter *, struct toepcb *, int); 580 void tls_received_starting_data(struct adapter *, struct toepcb *, 581 struct sockbuf *, int); 582 void t4_tls_mod_load(void); 583 void t4_tls_mod_unload(void); 584 void tls_init_toep(struct toepcb *); 585 int tls_tx_key(struct toepcb *); 586 void tls_uninit_toep(struct toepcb *); 587 int tls_alloc_ktls(struct toepcb *, struct ktls_session *, int); 588 589 /* t4_tpt.c */ 590 uint32_t t4_pblpool_alloc(struct adapter *, int); 591 void t4_pblpool_free(struct adapter *, uint32_t, int); 592 int t4_pblpool_create(struct adapter *); 593 void t4_pblpool_destroy(struct adapter *); 594 595 #endif 596