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 };
80
81 enum {
82 DDP_OK = (1 << 0), /* OK to turn on DDP */
83 DDP_SC_REQ = (1 << 1), /* state change (on/off) requested */
84 DDP_ON = (1 << 2), /* DDP is turned on */
85 DDP_BUF0_ACTIVE = (1 << 3), /* buffer 0 in use (not invalidated) */
86 DDP_BUF1_ACTIVE = (1 << 4), /* buffer 1 in use (not invalidated) */
87 DDP_TASK_ACTIVE = (1 << 5), /* requeue task is queued / running */
88 DDP_DEAD = (1 << 6), /* toepcb is shutting down */
89 DDP_AIO = (1 << 7), /* DDP used for AIO, not so_rcv */
90 DDP_RCVBUF = (1 << 8), /* DDP used for so_rcv, not AIO */
91 };
92
93 struct bio;
94 struct ctl_sg_entry;
95 struct sockopt;
96 struct offload_settings;
97
98 /*
99 * Connection parameters for an offloaded connection. These are mostly (but not
100 * all) hardware TOE parameters.
101 */
102 struct conn_params {
103 int8_t rx_coalesce;
104 int8_t cong_algo;
105 int8_t tc_idx;
106 int8_t tstamp;
107 int8_t sack;
108 int8_t nagle;
109 int8_t keepalive;
110 int8_t wscale;
111 int8_t ecn;
112 int8_t mtu_idx;
113 int8_t ulp_mode;
114 int8_t tx_align;
115 int16_t txq_idx; /* ofld_txq = &sc->sge.ofld_txq[txq_idx] */
116 int16_t rxq_idx; /* ofld_rxq = &sc->sge.ofld_rxq[rxq_idx] */
117 int16_t l2t_idx;
118 uint16_t emss;
119 uint16_t opt0_bufsize;
120 u_int sndbuf; /* controls TP tx pages */
121 };
122
123 struct ofld_tx_sdesc {
124 uint32_t plen; /* payload length */
125 uint8_t tx_credits; /* firmware tx credits (unit is 16B) */
126 };
127
128 struct ppod_region {
129 u_int pr_start;
130 u_int pr_len;
131 u_int pr_page_shift[4];
132 uint32_t pr_tag_mask; /* hardware tagmask for this region. */
133 uint32_t pr_invalid_bit; /* OR with this to invalidate tag. */
134 uint32_t pr_alias_mask; /* AND with tag to get alias bits. */
135 u_int pr_alias_shift; /* shift this much for first alias bit. */
136 vmem_t *pr_arena;
137 };
138
139 struct ppod_reservation {
140 struct ppod_region *prsv_pr;
141 uint32_t prsv_tag; /* Full tag: pgsz, alias, tag, color */
142 u_int prsv_nppods;
143 };
144
145 struct pageset {
146 TAILQ_ENTRY(pageset) link;
147 vm_page_t *pages;
148 int npages;
149 int flags;
150 int offset; /* offset in first page */
151 int len;
152 struct ppod_reservation prsv;
153 struct vmspace *vm;
154 vm_offset_t start;
155 u_int vm_timestamp;
156 };
157
158 TAILQ_HEAD(pagesetq, pageset);
159
160 #define PS_PPODS_WRITTEN 0x0001 /* Page pods written to the card. */
161
162 struct ddp_rcv_buffer {
163 TAILQ_ENTRY(ddp_rcv_buffer) link;
164 void *buf;
165 struct ppod_reservation prsv;
166 size_t len;
167 u_int refs;
168 };
169
170 struct ddp_buffer {
171 union {
172 /* DDP_AIO fields */
173 struct {
174 struct pageset *ps;
175 struct kaiocb *job;
176 int cancel_pending;
177 };
178
179 /* DDP_RCVBUF fields */
180 struct {
181 struct ddp_rcv_buffer *drb;
182 uint32_t placed;
183 };
184 };
185 };
186
187 /*
188 * (a) - DDP_AIO only
189 * (r) - DDP_RCVBUF only
190 */
191 struct ddp_pcb {
192 struct mtx lock;
193 u_int flags;
194 int active_id; /* the currently active DDP buffer */
195 struct ddp_buffer db[2];
196 union {
197 TAILQ_HEAD(, pageset) cached_pagesets; /* (a) */
198 TAILQ_HEAD(, ddp_rcv_buffer) cached_buffers; /* (r) */
199 };
200 TAILQ_HEAD(, kaiocb) aiojobq; /* (a) */
201 u_int waiting_count; /* (a) */
202 u_int active_count;
203 u_int cached_count;
204 struct task requeue_task;
205 struct kaiocb *queueing; /* (a) */
206 struct mtx cache_lock; /* (r) */
207 };
208
209 struct toepcb {
210 struct tom_data *td;
211 struct inpcb *inp; /* backpointer to host stack's PCB */
212 u_int flags; /* miscellaneous flags */
213 TAILQ_ENTRY(toepcb) link; /* toep_list */
214 int refcount;
215 struct vnet *vnet;
216 struct vi_info *vi; /* virtual interface */
217 struct sge_ofld_txq *ofld_txq;
218 struct sge_ofld_rxq *ofld_rxq;
219 struct sge_wrq *ctrlq;
220 struct l2t_entry *l2te; /* L2 table entry used by this connection */
221 struct clip_entry *ce; /* CLIP table entry used by this tid */
222 int tid; /* Connection identifier */
223
224 /* tx credit handling */
225 u_int tx_total; /* total tx WR credits (in 16B units) */
226 u_int tx_credits; /* tx WR credits (in 16B units) available */
227 u_int tx_nocompl; /* tx WR credits since last compl request */
228 u_int plen_nocompl; /* payload since last compl request */
229
230 struct conn_params params;
231
232 void *ulpcb;
233 void *ulpcb2;
234 struct mbufq ulp_pduq; /* PDUs waiting to be sent out. */
235 struct mbufq ulp_pdu_reclaimq;
236
237 struct ddp_pcb ddp;
238 struct tls_ofld_info tls;
239
240 TAILQ_HEAD(, kaiocb) aiotx_jobq;
241 struct task aiotx_task;
242 struct socket *aiotx_so;
243
244 /* Tx software descriptor */
245 uint8_t txsd_total;
246 uint8_t txsd_pidx;
247 uint8_t txsd_cidx;
248 uint8_t txsd_avail;
249 struct ofld_tx_sdesc txsd[];
250 };
251
252 static inline int
ulp_mode(struct toepcb * toep)253 ulp_mode(struct toepcb *toep)
254 {
255
256 return (toep->params.ulp_mode);
257 }
258
259 #define DDP_LOCK(toep) mtx_lock(&(toep)->ddp.lock)
260 #define DDP_UNLOCK(toep) mtx_unlock(&(toep)->ddp.lock)
261 #define DDP_ASSERT_LOCKED(toep) mtx_assert(&(toep)->ddp.lock, MA_OWNED)
262 #define DDP_CACHE_LOCK(toep) mtx_lock(&(toep)->ddp.cache_lock)
263 #define DDP_CACHE_UNLOCK(toep) mtx_unlock(&(toep)->ddp.cache_lock)
264
265 /*
266 * Compressed state for embryonic connections for a listener.
267 */
268 struct synq_entry {
269 struct listen_ctx *lctx; /* backpointer to listen ctx */
270 struct mbuf *syn;
271 int flags; /* same as toepcb's tp_flags */
272 volatile int ok_to_respond;
273 volatile u_int refcnt;
274 int tid;
275 uint32_t iss;
276 uint32_t irs;
277 uint32_t ts;
278 uint32_t rss_hash;
279 __be16 tcp_opt; /* from cpl_pass_establish */
280 struct toepcb *toep;
281
282 struct conn_params params;
283 };
284
285 /* listen_ctx flags */
286 #define LCTX_RPL_PENDING 1 /* waiting for a CPL_PASS_OPEN_RPL */
287
288 struct listen_ctx {
289 LIST_ENTRY(listen_ctx) link; /* listen hash linkage */
290 volatile int refcount;
291 int stid;
292 struct stid_region stid_region;
293 int flags;
294 struct inpcb *inp; /* listening socket's inp */
295 struct vnet *vnet;
296 struct sge_wrq *ctrlq;
297 struct sge_ofld_rxq *ofld_rxq;
298 struct clip_entry *ce;
299 };
300
301 /* tcb_histent flags */
302 #define TE_RPL_PENDING 1
303 #define TE_ACTIVE 2
304
305 /* bits in one 8b tcb_histent sample. */
306 #define TS_RTO (1 << 0)
307 #define TS_DUPACKS (1 << 1)
308 #define TS_FASTREXMT (1 << 2)
309 #define TS_SND_BACKLOGGED (1 << 3)
310 #define TS_CWND_LIMITED (1 << 4)
311 #define TS_ECN_ECE (1 << 5)
312 #define TS_ECN_CWR (1 << 6)
313 #define TS_RESERVED (1 << 7) /* Unused. */
314
315 struct tcb_histent {
316 struct mtx te_lock;
317 struct callout te_callout;
318 uint64_t te_tcb[TCB_SIZE / sizeof(uint64_t)];
319 struct adapter *te_adapter;
320 u_int te_flags;
321 u_int te_tid;
322 uint8_t te_pidx;
323 uint8_t te_sample[100];
324 };
325
326 struct tom_data {
327 struct toedev tod;
328
329 /* toepcb's associated with this TOE device */
330 struct mtx toep_list_lock;
331 TAILQ_HEAD(, toepcb) toep_list;
332
333 struct mtx lctx_hash_lock;
334 LIST_HEAD(, listen_ctx) *listen_hash;
335 u_long listen_mask;
336 int lctx_count; /* # of lctx in the hash table */
337
338 struct ppod_region pr;
339
340 struct rwlock tcb_history_lock __aligned(CACHE_LINE_SIZE);
341 struct tcb_histent **tcb_history;
342 int dupack_threshold;
343
344 /* WRs that will not be sent to the chip because L2 resolution failed */
345 struct mtx unsent_wr_lock;
346 STAILQ_HEAD(, wrqe) unsent_wr_list;
347 struct task reclaim_wr_resources;
348 };
349
350 static inline struct tom_data *
tod_td(struct toedev * tod)351 tod_td(struct toedev *tod)
352 {
353
354 return (__containerof(tod, struct tom_data, tod));
355 }
356
357 static inline struct adapter *
td_adapter(struct tom_data * td)358 td_adapter(struct tom_data *td)
359 {
360
361 return (td->tod.tod_softc);
362 }
363
364 static inline void
set_mbuf_raw_wr(struct mbuf * m,bool raw)365 set_mbuf_raw_wr(struct mbuf *m, bool raw)
366 {
367
368 M_ASSERTPKTHDR(m);
369 m->m_pkthdr.PH_per.eight[6] = raw;
370 }
371
372 static inline bool
mbuf_raw_wr(struct mbuf * m)373 mbuf_raw_wr(struct mbuf *m)
374 {
375
376 M_ASSERTPKTHDR(m);
377 return (m->m_pkthdr.PH_per.eight[6]);
378 }
379
380 static inline void
set_mbuf_ulp_submode(struct mbuf * m,uint8_t ulp_submode)381 set_mbuf_ulp_submode(struct mbuf *m, uint8_t ulp_submode)
382 {
383
384 M_ASSERTPKTHDR(m);
385 m->m_pkthdr.PH_per.eight[0] = ulp_submode;
386 }
387
388 static inline uint8_t
mbuf_ulp_submode(struct mbuf * m)389 mbuf_ulp_submode(struct mbuf *m)
390 {
391
392 M_ASSERTPKTHDR(m);
393 return (m->m_pkthdr.PH_per.eight[0]);
394 }
395
396 static inline void
set_mbuf_iscsi_iso(struct mbuf * m,bool iso)397 set_mbuf_iscsi_iso(struct mbuf *m, bool iso)
398 {
399
400 M_ASSERTPKTHDR(m);
401 m->m_pkthdr.PH_per.eight[1] = iso;
402 }
403
404 static inline bool
mbuf_iscsi_iso(struct mbuf * m)405 mbuf_iscsi_iso(struct mbuf *m)
406 {
407
408 M_ASSERTPKTHDR(m);
409 return (m->m_pkthdr.PH_per.eight[1]);
410 }
411
412 /* Flags for iSCSI segmentation offload. */
413 #define CXGBE_ISO_TYPE(flags) ((flags) & 0x3)
414 #define CXGBE_ISO_F 0x4
415
416 static inline void
set_mbuf_iscsi_iso_flags(struct mbuf * m,uint8_t flags)417 set_mbuf_iscsi_iso_flags(struct mbuf *m, uint8_t flags)
418 {
419
420 M_ASSERTPKTHDR(m);
421 m->m_pkthdr.PH_per.eight[2] = flags;
422 }
423
424 static inline uint8_t
mbuf_iscsi_iso_flags(struct mbuf * m)425 mbuf_iscsi_iso_flags(struct mbuf *m)
426 {
427
428 M_ASSERTPKTHDR(m);
429 return (m->m_pkthdr.PH_per.eight[2]);
430 }
431
432 static inline void
set_mbuf_iscsi_iso_mss(struct mbuf * m,uint16_t mss)433 set_mbuf_iscsi_iso_mss(struct mbuf *m, uint16_t mss)
434 {
435
436 M_ASSERTPKTHDR(m);
437 m->m_pkthdr.PH_per.sixteen[2] = mss;
438 }
439
440 static inline uint16_t
mbuf_iscsi_iso_mss(struct mbuf * m)441 mbuf_iscsi_iso_mss(struct mbuf *m)
442 {
443
444 M_ASSERTPKTHDR(m);
445 return (m->m_pkthdr.PH_per.sixteen[2]);
446 }
447
448 /* t4_tom.c */
449 struct toepcb *alloc_toepcb(struct vi_info *, int);
450 int init_toepcb(struct vi_info *, struct toepcb *);
451 struct toepcb *hold_toepcb(struct toepcb *);
452 void free_toepcb(struct toepcb *);
453 void offload_socket(struct socket *, struct toepcb *);
454 void restore_so_proto(struct socket *, bool);
455 void undo_offload_socket(struct socket *);
456 void final_cpl_received(struct toepcb *);
457 void insert_tid(struct adapter *, int, void *, int);
458 void *lookup_tid(struct adapter *, int);
459 void update_tid(struct adapter *, int, void *);
460 void remove_tid(struct adapter *, int, int);
461 u_long select_rcv_wnd(struct socket *);
462 int select_rcv_wscale(void);
463 void init_conn_params(struct vi_info *, struct offload_settings *,
464 struct in_conninfo *, struct socket *, const struct tcp_options *, int16_t,
465 struct conn_params *cp);
466 __be64 calc_options0(struct vi_info *, struct conn_params *);
467 __be32 calc_options2(struct vi_info *, struct conn_params *);
468 uint64_t select_ntuple(struct vi_info *, struct l2t_entry *);
469 int negative_advice(int);
470 int add_tid_to_history(struct adapter *, u_int);
471
472 /* t4_connect.c */
473 void t4_init_connect_cpl_handlers(void);
474 void t4_uninit_connect_cpl_handlers(void);
475 int t4_connect(struct toedev *, struct socket *, struct nhop_object *,
476 struct sockaddr *);
477 void act_open_failure_cleanup(struct adapter *, u_int, u_int);
478
479 /* t4_listen.c */
480 void t4_init_listen_cpl_handlers(void);
481 void t4_uninit_listen_cpl_handlers(void);
482 int t4_listen_start(struct toedev *, struct tcpcb *);
483 int t4_listen_stop(struct toedev *, struct tcpcb *);
484 void t4_syncache_added(struct toedev *, void *);
485 void t4_syncache_removed(struct toedev *, void *);
486 int t4_syncache_respond(struct toedev *, void *, struct mbuf *);
487 int do_abort_req_synqe(struct sge_iq *, const struct rss_header *,
488 struct mbuf *);
489 int do_abort_rpl_synqe(struct sge_iq *, const struct rss_header *,
490 struct mbuf *);
491 void t4_offload_socket(struct toedev *, void *, struct socket *);
492 void synack_failure_cleanup(struct adapter *, int);
493
494 /* t4_cpl_io.c */
495 void aiotx_init_toep(struct toepcb *);
496 int t4_aio_queue_aiotx(struct socket *, struct kaiocb *);
497 void t4_init_cpl_io_handlers(void);
498 void t4_uninit_cpl_io_handlers(void);
499 void send_abort_rpl(struct adapter *, struct sge_ofld_txq *, int , int);
500 void send_flowc_wr(struct toepcb *, struct tcpcb *);
501 void send_reset(struct adapter *, struct toepcb *, uint32_t);
502 int send_rx_credits(struct adapter *, struct toepcb *, int);
503 void make_established(struct toepcb *, uint32_t, uint32_t, uint16_t);
504 int t4_close_conn(struct adapter *, struct toepcb *);
505 void t4_rcvd(struct toedev *, struct tcpcb *);
506 void t4_rcvd_locked(struct toedev *, struct tcpcb *);
507 int t4_tod_output(struct toedev *, struct tcpcb *);
508 int t4_send_fin(struct toedev *, struct tcpcb *);
509 int t4_send_rst(struct toedev *, struct tcpcb *);
510 void t4_set_tcb_field(struct adapter *, struct sge_wrq *, struct toepcb *,
511 uint16_t, uint64_t, uint64_t, int, int);
512 void t4_push_frames(struct adapter *, struct toepcb *, int);
513 void t4_push_pdus(struct adapter *, struct toepcb *, int);
514
515 /* t4_ddp.c */
516 int t4_init_ppod_region(struct ppod_region *, struct t4_range *, u_int,
517 const char *);
518 void t4_free_ppod_region(struct ppod_region *);
519 int t4_alloc_page_pods_for_ps(struct ppod_region *, struct pageset *);
520 int t4_alloc_page_pods_for_bio(struct ppod_region *, struct bio *,
521 struct ppod_reservation *);
522 int t4_alloc_page_pods_for_buf(struct ppod_region *, vm_offset_t, int,
523 struct ppod_reservation *);
524 int t4_alloc_page_pods_for_sgl(struct ppod_region *, struct ctl_sg_entry *, int,
525 struct ppod_reservation *);
526 int t4_write_page_pods_for_ps(struct adapter *, struct sge_wrq *, int,
527 struct pageset *);
528 int t4_write_page_pods_for_bio(struct adapter *, struct toepcb *,
529 struct ppod_reservation *, struct bio *, struct mbufq *);
530 int t4_write_page_pods_for_buf(struct adapter *, struct toepcb *,
531 struct ppod_reservation *, vm_offset_t, int, struct mbufq *);
532 int t4_write_page_pods_for_sgl(struct adapter *, struct toepcb *,
533 struct ppod_reservation *, struct ctl_sg_entry *, int, int, struct mbufq *);
534 void t4_free_page_pods(struct ppod_reservation *);
535 int t4_aio_queue_ddp(struct socket *, struct kaiocb *);
536 int t4_enable_ddp_rcv(struct socket *, struct toepcb *);
537 void t4_ddp_mod_load(void);
538 void t4_ddp_mod_unload(void);
539 void ddp_assert_empty(struct toepcb *);
540 void ddp_uninit_toep(struct toepcb *);
541 void ddp_queue_toep(struct toepcb *);
542 void release_ddp_resources(struct toepcb *toep);
543 void handle_ddp_close(struct toepcb *, struct tcpcb *, uint32_t);
544 void handle_ddp_indicate(struct toepcb *);
545 void insert_ddp_data(struct toepcb *, uint32_t);
546 const struct offload_settings *lookup_offload_policy(struct adapter *, int,
547 struct mbuf *, uint16_t, struct inpcb *);
548
549 /* t4_tls.c */
550 bool can_tls_offload(struct adapter *);
551 void do_rx_data_tls(const struct cpl_rx_data *, struct toepcb *, struct mbuf *);
552 void t4_push_ktls(struct adapter *, struct toepcb *, int);
553 void tls_received_starting_data(struct adapter *, struct toepcb *,
554 struct sockbuf *, int);
555 void t4_tls_mod_load(void);
556 void t4_tls_mod_unload(void);
557 void tls_init_toep(struct toepcb *);
558 int tls_tx_key(struct toepcb *);
559 void tls_uninit_toep(struct toepcb *);
560 int tls_alloc_ktls(struct toepcb *, struct ktls_session *, int);
561
562 #endif
563