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 int16_t txq_idx; /* ofld_txq = &sc->sge.ofld_txq[txq_idx] */
117 int16_t rxq_idx; /* ofld_rxq = &sc->sge.ofld_rxq[rxq_idx] */
118 int16_t l2t_idx;
119 uint16_t emss;
120 uint16_t opt0_bufsize;
121 u_int sndbuf; /* controls TP tx pages */
122 };
123
124 struct ofld_tx_sdesc {
125 uint32_t plen; /* payload length */
126 uint8_t tx_credits; /* firmware tx credits (unit is 16B) */
127 };
128
129 struct ppod_region {
130 u_int pr_start;
131 u_int pr_len;
132 u_int pr_page_shift[4];
133 uint32_t pr_tag_mask; /* hardware tagmask for this region. */
134 uint32_t pr_invalid_bit; /* OR with this to invalidate tag. */
135 uint32_t pr_alias_mask; /* AND with tag to get alias bits. */
136 u_int pr_alias_shift; /* shift this much for first alias bit. */
137 vmem_t *pr_arena;
138 };
139
140 struct ppod_reservation {
141 struct ppod_region *prsv_pr;
142 uint32_t prsv_tag; /* Full tag: pgsz, alias, tag, color */
143 u_int prsv_nppods;
144 };
145
146 struct pageset {
147 TAILQ_ENTRY(pageset) link;
148 vm_page_t *pages;
149 int npages;
150 int flags;
151 int offset; /* offset in first page */
152 int len;
153 struct ppod_reservation prsv;
154 struct vmspace *vm;
155 vm_offset_t start;
156 u_int vm_timestamp;
157 };
158
159 TAILQ_HEAD(pagesetq, pageset);
160
161 #define PS_PPODS_WRITTEN 0x0001 /* Page pods written to the card. */
162
163 struct ddp_rcv_buffer {
164 TAILQ_ENTRY(ddp_rcv_buffer) link;
165 void *buf;
166 struct ppod_reservation prsv;
167 size_t len;
168 u_int refs;
169 };
170
171 struct ddp_buffer {
172 union {
173 /* DDP_AIO fields */
174 struct {
175 struct pageset *ps;
176 struct kaiocb *job;
177 int cancel_pending;
178 };
179
180 /* DDP_RCVBUF fields */
181 struct {
182 struct ddp_rcv_buffer *drb;
183 uint32_t placed;
184 };
185 };
186 };
187
188 /*
189 * (a) - DDP_AIO only
190 * (r) - DDP_RCVBUF only
191 */
192 struct ddp_pcb {
193 struct mtx lock;
194 u_int flags;
195 int active_id; /* the currently active DDP buffer */
196 struct ddp_buffer db[2];
197 union {
198 TAILQ_HEAD(, pageset) cached_pagesets; /* (a) */
199 TAILQ_HEAD(, ddp_rcv_buffer) cached_buffers; /* (r) */
200 };
201 TAILQ_HEAD(, kaiocb) aiojobq; /* (a) */
202 u_int waiting_count; /* (a) */
203 u_int active_count;
204 u_int cached_count;
205 struct task requeue_task;
206 struct kaiocb *queueing; /* (a) */
207 struct mtx cache_lock; /* (r) */
208 };
209
210 struct toepcb {
211 struct tom_data *td;
212 struct inpcb *inp; /* backpointer to host stack's PCB */
213 u_int flags; /* miscellaneous flags */
214 TAILQ_ENTRY(toepcb) link; /* toep_list or stranded_toep_list */
215 int refcount;
216 struct vnet *vnet;
217 struct vi_info *vi; /* virtual interface */
218 struct sge_ofld_txq *ofld_txq;
219 struct sge_ofld_rxq *ofld_rxq;
220 struct sge_wrq *ctrlq;
221 struct l2t_entry *l2te; /* L2 table entry used by this connection */
222 struct clip_entry *ce; /* CLIP table entry used by this tid */
223 int tid; /* Connection identifier */
224 int incarnation; /* sc->incarnation when toepcb was allocated */
225
226 /* tx credit handling */
227 u_int tx_total; /* total tx WR credits (in 16B units) */
228 u_int tx_credits; /* tx WR credits (in 16B units) available */
229 u_int tx_nocompl; /* tx WR credits since last compl request */
230 u_int plen_nocompl; /* payload since last compl request */
231
232 struct conn_params params;
233
234 void *ulpcb;
235 void *ulpcb2;
236 struct mbufq ulp_pduq; /* PDUs waiting to be sent out. */
237 struct mbufq ulp_pdu_reclaimq;
238
239 struct ddp_pcb ddp;
240 struct tls_ofld_info tls;
241
242 TAILQ_HEAD(, kaiocb) aiotx_jobq;
243 struct task aiotx_task;
244 struct socket *aiotx_so;
245
246 /* Tx software descriptor */
247 uint8_t txsd_total;
248 uint8_t txsd_pidx;
249 uint8_t txsd_cidx;
250 uint8_t txsd_avail;
251 struct ofld_tx_sdesc txsd[];
252 };
253
254 static inline int
ulp_mode(struct toepcb * toep)255 ulp_mode(struct toepcb *toep)
256 {
257
258 return (toep->params.ulp_mode);
259 }
260
261 #define DDP_LOCK(toep) mtx_lock(&(toep)->ddp.lock)
262 #define DDP_UNLOCK(toep) mtx_unlock(&(toep)->ddp.lock)
263 #define DDP_ASSERT_LOCKED(toep) mtx_assert(&(toep)->ddp.lock, MA_OWNED)
264 #define DDP_CACHE_LOCK(toep) mtx_lock(&(toep)->ddp.cache_lock)
265 #define DDP_CACHE_UNLOCK(toep) mtx_unlock(&(toep)->ddp.cache_lock)
266
267 /*
268 * Compressed state for embryonic connections for a listener.
269 */
270 struct synq_entry {
271 struct listen_ctx *lctx; /* backpointer to listen ctx */
272 struct mbuf *syn;
273 int flags; /* same as toepcb's tp_flags */
274 TAILQ_ENTRY(synq_entry) link; /* synqe_list */
275 volatile int ok_to_respond;
276 volatile u_int refcnt;
277 int tid;
278 uint32_t iss;
279 uint32_t irs;
280 uint32_t ts;
281 uint32_t rss_hash;
282 __be16 tcp_opt; /* from cpl_pass_establish */
283 int incarnation;
284 struct toepcb *toep;
285
286 struct conn_params params;
287 };
288
289 /* listen_ctx flags */
290 #define LCTX_RPL_PENDING 1 /* waiting for a CPL_PASS_OPEN_RPL */
291 #define LCTX_SETUP_IN_HW 2 /* stid entry is setup in hardware */
292
293 struct listen_ctx {
294 LIST_ENTRY(listen_ctx) link; /* listen hash linkage */
295 volatile int refcount;
296 int stid;
297 int flags;
298 bool isipv6;
299 struct inpcb *inp; /* listening socket's inp */
300 struct vnet *vnet;
301 struct sge_wrq *ctrlq;
302 struct sge_ofld_rxq *ofld_rxq;
303 struct clip_entry *ce;
304 };
305
306 /* tcb_histent flags */
307 #define TE_RPL_PENDING 1
308 #define TE_ACTIVE 2
309
310 /* bits in one 8b tcb_histent sample. */
311 #define TS_RTO (1 << 0)
312 #define TS_DUPACKS (1 << 1)
313 #define TS_FASTREXMT (1 << 2)
314 #define TS_SND_BACKLOGGED (1 << 3)
315 #define TS_CWND_LIMITED (1 << 4)
316 #define TS_ECN_ECE (1 << 5)
317 #define TS_ECN_CWR (1 << 6)
318 #define TS_RESERVED (1 << 7) /* Unused. */
319
320 struct tcb_histent {
321 struct mtx te_lock;
322 struct callout te_callout;
323 uint64_t te_tcb[TCB_SIZE / sizeof(uint64_t)];
324 struct adapter *te_adapter;
325 u_int te_flags;
326 u_int te_tid;
327 uint8_t te_pidx;
328 uint8_t te_sample[100];
329 };
330
331 struct tom_data {
332 struct toedev tod;
333
334 /* toepcb's associated with this TOE device */
335 struct mtx toep_list_lock;
336 TAILQ_HEAD(, toepcb) toep_list;
337 TAILQ_HEAD(, synq_entry) synqe_list;
338 /* List of tids left stranded because hw stopped abruptly. */
339 TAILQ_HEAD(, toepcb) stranded_atids;
340 TAILQ_HEAD(, toepcb) stranded_tids;
341 TAILQ_HEAD(, synq_entry) stranded_synqe;
342 struct task cleanup_stranded_tids;
343
344 struct mtx lctx_hash_lock;
345 LIST_HEAD(, listen_ctx) *listen_hash;
346 u_long listen_mask;
347 int lctx_count; /* # of lctx in the hash table */
348
349 struct ppod_region pr;
350
351 struct rwlock tcb_history_lock __aligned(CACHE_LINE_SIZE);
352 struct tcb_histent **tcb_history;
353 int dupack_threshold;
354
355 /* WRs that will not be sent to the chip because L2 resolution failed */
356 struct mtx unsent_wr_lock;
357 STAILQ_HEAD(, wrqe) unsent_wr_list;
358 struct task reclaim_wr_resources;
359 };
360
361 static inline struct tom_data *
tod_td(struct toedev * tod)362 tod_td(struct toedev *tod)
363 {
364
365 return (__containerof(tod, struct tom_data, tod));
366 }
367
368 static inline struct adapter *
td_adapter(struct tom_data * td)369 td_adapter(struct tom_data *td)
370 {
371
372 return (td->tod.tod_softc);
373 }
374
375 static inline void
set_mbuf_raw_wr(struct mbuf * m,bool raw)376 set_mbuf_raw_wr(struct mbuf *m, bool raw)
377 {
378
379 M_ASSERTPKTHDR(m);
380 m->m_pkthdr.PH_per.eight[6] = raw;
381 }
382
383 static inline bool
mbuf_raw_wr(struct mbuf * m)384 mbuf_raw_wr(struct mbuf *m)
385 {
386
387 M_ASSERTPKTHDR(m);
388 return (m->m_pkthdr.PH_per.eight[6]);
389 }
390
391 static inline void
set_mbuf_ulp_submode(struct mbuf * m,uint8_t ulp_submode)392 set_mbuf_ulp_submode(struct mbuf *m, uint8_t ulp_submode)
393 {
394
395 M_ASSERTPKTHDR(m);
396 m->m_pkthdr.PH_per.eight[0] = ulp_submode;
397 }
398
399 static inline uint8_t
mbuf_ulp_submode(struct mbuf * m)400 mbuf_ulp_submode(struct mbuf *m)
401 {
402
403 M_ASSERTPKTHDR(m);
404 return (m->m_pkthdr.PH_per.eight[0]);
405 }
406
407 static inline void
set_mbuf_iscsi_iso(struct mbuf * m,bool iso)408 set_mbuf_iscsi_iso(struct mbuf *m, bool iso)
409 {
410
411 M_ASSERTPKTHDR(m);
412 m->m_pkthdr.PH_per.eight[1] = iso;
413 }
414
415 static inline bool
mbuf_iscsi_iso(struct mbuf * m)416 mbuf_iscsi_iso(struct mbuf *m)
417 {
418
419 M_ASSERTPKTHDR(m);
420 return (m->m_pkthdr.PH_per.eight[1]);
421 }
422
423 /* Flags for iSCSI segmentation offload. */
424 #define CXGBE_ISO_TYPE(flags) ((flags) & 0x3)
425 #define CXGBE_ISO_F 0x4
426
427 static inline void
set_mbuf_iscsi_iso_flags(struct mbuf * m,uint8_t flags)428 set_mbuf_iscsi_iso_flags(struct mbuf *m, uint8_t flags)
429 {
430
431 M_ASSERTPKTHDR(m);
432 m->m_pkthdr.PH_per.eight[2] = flags;
433 }
434
435 static inline uint8_t
mbuf_iscsi_iso_flags(struct mbuf * m)436 mbuf_iscsi_iso_flags(struct mbuf *m)
437 {
438
439 M_ASSERTPKTHDR(m);
440 return (m->m_pkthdr.PH_per.eight[2]);
441 }
442
443 static inline void
set_mbuf_iscsi_iso_mss(struct mbuf * m,uint16_t mss)444 set_mbuf_iscsi_iso_mss(struct mbuf *m, uint16_t mss)
445 {
446
447 M_ASSERTPKTHDR(m);
448 m->m_pkthdr.PH_per.sixteen[2] = mss;
449 }
450
451 static inline uint16_t
mbuf_iscsi_iso_mss(struct mbuf * m)452 mbuf_iscsi_iso_mss(struct mbuf *m)
453 {
454
455 M_ASSERTPKTHDR(m);
456 return (m->m_pkthdr.PH_per.sixteen[2]);
457 }
458
459 /* t4_tom.c */
460 struct toepcb *alloc_toepcb(struct vi_info *, int);
461 int init_toepcb(struct vi_info *, struct toepcb *);
462 struct toepcb *hold_toepcb(struct toepcb *);
463 void free_toepcb(struct toepcb *);
464 void offload_socket(struct socket *, struct toepcb *);
465 void restore_so_proto(struct socket *, bool);
466 void undo_offload_socket(struct socket *);
467 void final_cpl_received(struct toepcb *);
468 void insert_tid(struct adapter *, int, void *, int);
469 void *lookup_tid(struct adapter *, int);
470 void update_tid(struct adapter *, int, void *);
471 void remove_tid(struct adapter *, int, int);
472 u_long select_rcv_wnd(struct socket *);
473 int select_rcv_wscale(void);
474 void init_conn_params(struct vi_info *, struct offload_settings *,
475 struct in_conninfo *, struct socket *, const struct tcp_options *, int16_t,
476 struct conn_params *cp);
477 __be64 calc_options0(struct vi_info *, struct conn_params *);
478 __be32 calc_options2(struct vi_info *, struct conn_params *);
479 uint64_t select_ntuple(struct vi_info *, struct l2t_entry *);
480 int negative_advice(int);
481 int add_tid_to_history(struct adapter *, u_int);
482 void t4_pcb_detach(struct toedev *, struct tcpcb *);
483
484 /* t4_connect.c */
485 void t4_init_connect_cpl_handlers(void);
486 void t4_uninit_connect_cpl_handlers(void);
487 int t4_connect(struct toedev *, struct socket *, struct nhop_object *,
488 struct sockaddr *);
489 void act_open_failure_cleanup(struct adapter *, struct toepcb *, u_int);
490
491 /* t4_listen.c */
492 void t4_init_listen_cpl_handlers(void);
493 void t4_uninit_listen_cpl_handlers(void);
494 int t4_listen_start(struct toedev *, struct tcpcb *);
495 int t4_listen_stop(struct toedev *, struct tcpcb *);
496 void t4_syncache_added(struct toedev *, void *);
497 void t4_syncache_removed(struct toedev *, void *);
498 int t4_syncache_respond(struct toedev *, void *, struct mbuf *);
499 int do_abort_req_synqe(struct sge_iq *, const struct rss_header *,
500 struct mbuf *);
501 int do_abort_rpl_synqe(struct sge_iq *, const struct rss_header *,
502 struct mbuf *);
503 void t4_offload_socket(struct toedev *, void *, struct socket *);
504 void synack_failure_cleanup(struct adapter *, struct synq_entry *);
505 int alloc_stid_tab(struct adapter *);
506 void free_stid_tab(struct adapter *);
507 void stop_stid_tab(struct adapter *);
508 void restart_stid_tab(struct adapter *);
509
510 /* t4_cpl_io.c */
511 void aiotx_init_toep(struct toepcb *);
512 int t4_aio_queue_aiotx(struct socket *, struct kaiocb *);
513 void t4_init_cpl_io_handlers(void);
514 void t4_uninit_cpl_io_handlers(void);
515 void send_abort_rpl(struct adapter *, struct sge_ofld_txq *, int , int);
516 void send_flowc_wr(struct toepcb *, struct tcpcb *);
517 void send_reset(struct adapter *, struct toepcb *, uint32_t);
518 int send_rx_credits(struct adapter *, struct toepcb *, int);
519 void make_established(struct toepcb *, uint32_t, uint32_t, uint16_t);
520 int t4_close_conn(struct adapter *, struct toepcb *);
521 void t4_rcvd(struct toedev *, struct tcpcb *);
522 void t4_rcvd_locked(struct toedev *, struct tcpcb *);
523 int t4_tod_output(struct toedev *, struct tcpcb *);
524 int t4_send_fin(struct toedev *, struct tcpcb *);
525 int t4_send_rst(struct toedev *, struct tcpcb *);
526 void t4_set_tcb_field(struct adapter *, struct sge_wrq *, struct toepcb *,
527 uint16_t, uint64_t, uint64_t, int, int);
528 void t4_push_frames(struct adapter *, struct toepcb *, int);
529 void t4_push_pdus(struct adapter *, struct toepcb *, int);
530
531 /* t4_ddp.c */
532 int t4_init_ppod_region(struct ppod_region *, struct t4_range *, u_int,
533 const char *);
534 void t4_free_ppod_region(struct ppod_region *);
535 int t4_alloc_page_pods_for_ps(struct ppod_region *, struct pageset *);
536 int t4_alloc_page_pods_for_bio(struct ppod_region *, struct bio *,
537 struct ppod_reservation *);
538 int t4_alloc_page_pods_for_buf(struct ppod_region *, vm_offset_t, int,
539 struct ppod_reservation *);
540 int t4_alloc_page_pods_for_sgl(struct ppod_region *, struct ctl_sg_entry *, int,
541 struct ppod_reservation *);
542 int t4_write_page_pods_for_ps(struct adapter *, struct sge_wrq *, int,
543 struct pageset *);
544 int t4_write_page_pods_for_bio(struct adapter *, struct toepcb *,
545 struct ppod_reservation *, struct bio *, struct mbufq *);
546 int t4_write_page_pods_for_buf(struct adapter *, struct toepcb *,
547 struct ppod_reservation *, vm_offset_t, int, struct mbufq *);
548 int t4_write_page_pods_for_sgl(struct adapter *, struct toepcb *,
549 struct ppod_reservation *, struct ctl_sg_entry *, int, int, struct mbufq *);
550 void t4_free_page_pods(struct ppod_reservation *);
551 int t4_aio_queue_ddp(struct socket *, struct kaiocb *);
552 int t4_enable_ddp_rcv(struct socket *, struct toepcb *);
553 void t4_ddp_mod_load(void);
554 void t4_ddp_mod_unload(void);
555 void ddp_assert_empty(struct toepcb *);
556 void ddp_uninit_toep(struct toepcb *);
557 void ddp_queue_toep(struct toepcb *);
558 void release_ddp_resources(struct toepcb *toep);
559 void handle_ddp_close(struct toepcb *, struct tcpcb *, uint32_t);
560 void handle_ddp_indicate(struct toepcb *);
561 void insert_ddp_data(struct toepcb *, uint32_t);
562 const struct offload_settings *lookup_offload_policy(struct adapter *, int,
563 struct mbuf *, uint16_t, struct inpcb *);
564
565 /* t4_tls.c */
566 bool can_tls_offload(struct adapter *);
567 void do_rx_data_tls(const struct cpl_rx_data *, struct toepcb *, struct mbuf *);
568 void t4_push_ktls(struct adapter *, struct toepcb *, int);
569 void tls_received_starting_data(struct adapter *, struct toepcb *,
570 struct sockbuf *, int);
571 void t4_tls_mod_load(void);
572 void t4_tls_mod_unload(void);
573 void tls_init_toep(struct toepcb *);
574 int tls_tx_key(struct toepcb *);
575 void tls_uninit_toep(struct toepcb *);
576 int tls_alloc_ktls(struct toepcb *, struct ktls_session *, int);
577
578 #endif
579