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8a67d61d | 1 | /** @file\r |
2 | \r | |
36ee91ca | 3 | Copyright (c) 2005 - 2007, Intel Corporation\r |
8a67d61d | 4 | All rights reserved. This program and the accompanying materials\r |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | Tcp4Timer.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | TCP timer related functions.\r | |
19 | \r | |
20 | \r | |
21 | **/\r | |
22 | \r | |
23 | #include "Tcp4Main.h"\r | |
24 | \r | |
25 | UINT32 mTcpTick = 1000;\r | |
26 | \r | |
8a67d61d | 27 | VOID\r |
28 | TcpConnectTimeout (\r | |
29 | IN TCP_CB *Tcb\r | |
30 | );\r | |
31 | \r | |
8a67d61d | 32 | VOID\r |
33 | TcpRexmitTimeout (\r | |
34 | IN TCP_CB *Tcb\r | |
35 | );\r | |
36 | \r | |
8a67d61d | 37 | VOID\r |
38 | TcpProbeTimeout (\r | |
39 | IN TCP_CB *Tcb\r | |
40 | );\r | |
41 | \r | |
8a67d61d | 42 | VOID\r |
43 | TcpKeepaliveTimeout (\r | |
44 | IN TCP_CB *Tcb\r | |
45 | );\r | |
46 | \r | |
8a67d61d | 47 | VOID\r |
48 | TcpFinwait2Timeout (\r | |
49 | IN TCP_CB *Tcb\r | |
50 | );\r | |
51 | \r | |
8a67d61d | 52 | VOID\r |
53 | Tcp2MSLTimeout (\r | |
54 | IN TCP_CB *Tcb\r | |
55 | );\r | |
56 | \r | |
57 | TCP_TIMER_HANDLER mTcpTimerHandler[TCP_TIMER_NUMBER] = {\r | |
58 | TcpConnectTimeout,\r | |
59 | TcpRexmitTimeout,\r | |
60 | TcpProbeTimeout,\r | |
61 | TcpKeepaliveTimeout,\r | |
62 | TcpFinwait2Timeout,\r | |
63 | Tcp2MSLTimeout,\r | |
64 | };\r | |
65 | \r | |
66 | \r | |
67 | /**\r | |
68 | Close the TCP connection.\r | |
69 | \r | |
70 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
71 | \r | |
72 | @return None.\r | |
73 | \r | |
74 | **/\r | |
75 | VOID\r | |
76 | TcpClose (\r | |
77 | IN TCP_CB *Tcb\r | |
78 | )\r | |
79 | {\r | |
80 | NetbufFreeList (&Tcb->SndQue);\r | |
81 | NetbufFreeList (&Tcb->RcvQue);\r | |
82 | \r | |
83 | TcpSetState (Tcb, TCP_CLOSED);\r | |
84 | }\r | |
85 | \r | |
86 | \r | |
87 | /**\r | |
88 | Connect timeout handler.\r | |
89 | \r | |
90 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
91 | \r | |
92 | @return None.\r | |
93 | \r | |
94 | **/\r | |
8a67d61d | 95 | VOID\r |
96 | TcpConnectTimeout (\r | |
97 | IN TCP_CB *Tcb\r | |
98 | )\r | |
99 | {\r | |
100 | if (!TCP_CONNECTED (Tcb->State)) {\r | |
e48e37fc | 101 | DEBUG ((EFI_D_ERROR, "TcpConnectTimeout: connection closed "\r |
0e549d5b | 102 | "because conenction timer timeout for TCB %p\n", Tcb));\r |
8a67d61d | 103 | \r |
104 | if (EFI_ABORTED == Tcb->Sk->SockError) {\r | |
105 | SOCK_ERROR (Tcb->Sk, EFI_TIMEOUT);\r | |
106 | }\r | |
107 | \r | |
108 | if (TCP_SYN_RCVD == Tcb->State) {\r | |
e48e37fc | 109 | DEBUG ((EFI_D_WARN, "TcpConnectTimeout: send reset because "\r |
0e549d5b | 110 | "connection timer timeout for TCB %p\n", Tcb));\r |
8a67d61d | 111 | \r |
112 | TcpResetConnection (Tcb);\r | |
113 | \r | |
114 | }\r | |
115 | \r | |
116 | TcpClose (Tcb);\r | |
117 | }\r | |
118 | }\r | |
119 | \r | |
120 | \r | |
121 | /**\r | |
122 | Timeout handler for TCP retransmission timer.\r | |
123 | \r | |
124 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
125 | \r | |
126 | @return None.\r | |
127 | \r | |
128 | **/\r | |
8a67d61d | 129 | VOID\r |
130 | TcpRexmitTimeout (\r | |
131 | IN TCP_CB *Tcb\r | |
132 | )\r | |
133 | {\r | |
134 | UINT32 FlightSize;\r | |
135 | \r | |
e48e37fc | 136 | DEBUG ((EFI_D_WARN, "TcpRexmitTimeout: transmission "\r |
0e549d5b | 137 | "timeout for TCB %p\n", Tcb));\r |
8a67d61d | 138 | \r |
139 | //\r | |
140 | // Set the congestion window. FlightSize is the\r | |
141 | // amount of data that has been sent but not\r | |
142 | // yet ACKed.\r | |
143 | //\r | |
144 | FlightSize = TCP_SUB_SEQ (Tcb->SndNxt, Tcb->SndUna);\r | |
36ee91ca | 145 | Tcb->Ssthresh = MAX ((UINT32) (2 * Tcb->SndMss), FlightSize / 2);\r |
8a67d61d | 146 | \r |
147 | Tcb->CWnd = Tcb->SndMss;\r | |
148 | Tcb->LossRecover = Tcb->SndNxt;\r | |
149 | \r | |
150 | Tcb->LossTimes++;\r | |
151 | if (Tcb->LossTimes > Tcb->MaxRexmit &&\r | |
152 | !TCP_TIMER_ON (Tcb->EnabledTimer, TCP_TIMER_CONNECT)) {\r | |
153 | \r | |
e48e37fc | 154 | DEBUG ((EFI_D_ERROR, "TcpRexmitTimeout: connection closed "\r |
0e549d5b | 155 | "because too many timeouts for TCB %p\n", Tcb));\r |
8a67d61d | 156 | \r |
157 | if (EFI_ABORTED == Tcb->Sk->SockError) {\r | |
158 | SOCK_ERROR (Tcb->Sk, EFI_TIMEOUT);\r | |
159 | }\r | |
160 | \r | |
161 | TcpClose (Tcb);\r | |
162 | return ;\r | |
163 | }\r | |
164 | \r | |
165 | TcpBackoffRto (Tcb);\r | |
166 | TcpRetransmit (Tcb, Tcb->SndUna);\r | |
167 | TcpSetTimer (Tcb, TCP_TIMER_REXMIT, Tcb->Rto);\r | |
168 | \r | |
169 | Tcb->CongestState = TCP_CONGEST_LOSS;\r | |
170 | \r | |
171 | TCP_CLEAR_FLG (Tcb->CtrlFlag, TCP_CTRL_RTT_ON);\r | |
172 | }\r | |
173 | \r | |
174 | \r | |
175 | /**\r | |
176 | Timeout handler for window probe timer.\r | |
177 | \r | |
178 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
179 | \r | |
180 | @return None.\r | |
181 | \r | |
182 | **/\r | |
8a67d61d | 183 | VOID\r |
184 | TcpProbeTimeout (\r | |
185 | IN TCP_CB *Tcb\r | |
186 | )\r | |
187 | {\r | |
188 | //\r | |
189 | // This is the timer for sender's SWSA. RFC1122 requires\r | |
190 | // a timer set for sender's SWSA, and suggest combine it\r | |
191 | // with window probe timer. If data is sent, don't set\r | |
192 | // the probe timer, since retransmit timer is on.\r | |
193 | //\r | |
194 | if ((TcpDataToSend (Tcb, 1) != 0) && (TcpToSendData (Tcb, 1) > 0)) {\r | |
195 | \r | |
196 | ASSERT (TCP_TIMER_ON (Tcb->EnabledTimer, TCP_TIMER_REXMIT));\r | |
197 | return ;\r | |
198 | }\r | |
199 | \r | |
200 | TcpSendZeroProbe (Tcb);\r | |
201 | TcpSetProbeTimer (Tcb);\r | |
202 | }\r | |
203 | \r | |
204 | \r | |
205 | /**\r | |
206 | Timeout handler for keepalive timer.\r | |
207 | \r | |
208 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
209 | \r | |
210 | @return None.\r | |
211 | \r | |
212 | **/\r | |
8a67d61d | 213 | VOID\r |
214 | TcpKeepaliveTimeout (\r | |
215 | IN TCP_CB *Tcb\r | |
216 | )\r | |
217 | {\r | |
218 | Tcb->KeepAliveProbes++;\r | |
219 | \r | |
220 | //\r | |
221 | // Too many Keep-alive probes, drop the connection\r | |
222 | //\r | |
223 | if (Tcb->KeepAliveProbes > Tcb->MaxKeepAlive) {\r | |
224 | \r | |
225 | if (EFI_ABORTED == Tcb->Sk->SockError) {\r | |
226 | SOCK_ERROR (Tcb->Sk, EFI_TIMEOUT);\r | |
227 | }\r | |
228 | \r | |
229 | TcpClose (Tcb);\r | |
230 | return ;\r | |
231 | }\r | |
232 | \r | |
233 | TcpSendZeroProbe (Tcb);\r | |
234 | TcpSetKeepaliveTimer (Tcb);\r | |
235 | }\r | |
236 | \r | |
237 | \r | |
238 | /**\r | |
239 | Timeout handler for FIN_WAIT_2 timer.\r | |
240 | \r | |
241 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
242 | \r | |
243 | @return None.\r | |
244 | \r | |
245 | **/\r | |
8a67d61d | 246 | VOID\r |
247 | TcpFinwait2Timeout (\r | |
248 | IN TCP_CB *Tcb\r | |
249 | )\r | |
250 | {\r | |
e48e37fc | 251 | DEBUG ((EFI_D_WARN, "TcpFinwait2Timeout: connection closed "\r |
0e549d5b | 252 | "because FIN_WAIT2 timer timeouts for TCB %p\n", Tcb));\r |
8a67d61d | 253 | \r |
254 | TcpClose (Tcb);\r | |
255 | }\r | |
256 | \r | |
257 | \r | |
258 | /**\r | |
259 | Timeout handler for 2MSL timer.\r | |
260 | \r | |
261 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
262 | \r | |
263 | @return None.\r | |
264 | \r | |
265 | **/\r | |
8a67d61d | 266 | VOID\r |
267 | Tcp2MSLTimeout (\r | |
268 | IN TCP_CB *Tcb\r | |
269 | )\r | |
270 | {\r | |
e48e37fc | 271 | DEBUG ((EFI_D_WARN, "Tcp2MSLTimeout: connection closed "\r |
0e549d5b | 272 | "because TIME_WAIT timer timeouts for TCB %p\n", Tcb));\r |
8a67d61d | 273 | \r |
274 | TcpClose (Tcb);\r | |
275 | }\r | |
276 | \r | |
277 | \r | |
278 | /**\r | |
279 | Update the timer status and the next expire time\r | |
280 | according to the timers to expire in a specific\r | |
281 | future time slot.\r | |
282 | \r | |
283 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
284 | \r | |
285 | @return None.\r | |
286 | \r | |
287 | **/\r | |
8a67d61d | 288 | VOID\r |
289 | TcpUpdateTimer (\r | |
290 | IN TCP_CB *Tcb\r | |
291 | )\r | |
292 | {\r | |
293 | UINT16 Index;\r | |
294 | \r | |
295 | //\r | |
296 | // Don't use a too large value to init NextExpire\r | |
297 | // since mTcpTick wraps around as sequence no does.\r | |
298 | //\r | |
299 | Tcb->NextExpire = 65535;\r | |
300 | TCP_CLEAR_FLG (Tcb->CtrlFlag, TCP_CTRL_TIMER_ON);\r | |
301 | \r | |
302 | for (Index = 0; Index < TCP_TIMER_NUMBER; Index++) {\r | |
303 | \r | |
304 | if (TCP_TIMER_ON (Tcb->EnabledTimer, Index) &&\r | |
305 | TCP_TIME_LT (Tcb->Timer[Index], mTcpTick + Tcb->NextExpire)) {\r | |
306 | \r | |
307 | Tcb->NextExpire = TCP_SUB_TIME (Tcb->Timer[Index], mTcpTick);\r | |
308 | TCP_SET_FLG (Tcb->CtrlFlag, TCP_CTRL_TIMER_ON);\r | |
309 | }\r | |
310 | }\r | |
311 | }\r | |
312 | \r | |
313 | \r | |
314 | /**\r | |
315 | Enable a TCP timer.\r | |
316 | \r | |
317 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
318 | @param Timer The index of the timer to be enabled.\r | |
319 | @param TimeOut The timeout value of this timer.\r | |
320 | \r | |
321 | @return None.\r | |
322 | \r | |
323 | **/\r | |
324 | VOID\r | |
325 | TcpSetTimer (\r | |
326 | IN TCP_CB *Tcb,\r | |
327 | IN UINT16 Timer,\r | |
328 | IN UINT32 TimeOut\r | |
329 | )\r | |
330 | {\r | |
331 | TCP_SET_TIMER (Tcb->EnabledTimer, Timer);\r | |
332 | Tcb->Timer[Timer] = mTcpTick + TimeOut;\r | |
333 | \r | |
334 | TcpUpdateTimer (Tcb);\r | |
335 | }\r | |
336 | \r | |
337 | \r | |
338 | /**\r | |
339 | Clear one TCP timer.\r | |
340 | \r | |
341 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
342 | @param Timer The index of the timer to be cleared.\r | |
343 | \r | |
344 | @return None.\r | |
345 | \r | |
346 | **/\r | |
347 | VOID\r | |
348 | TcpClearTimer (\r | |
349 | IN TCP_CB *Tcb,\r | |
350 | IN UINT16 Timer\r | |
351 | )\r | |
352 | {\r | |
353 | TCP_CLEAR_TIMER (Tcb->EnabledTimer, Timer);\r | |
354 | TcpUpdateTimer (Tcb);\r | |
355 | }\r | |
356 | \r | |
357 | \r | |
358 | /**\r | |
359 | Clear all TCP timers.\r | |
360 | \r | |
361 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
362 | \r | |
363 | @return None.\r | |
364 | \r | |
365 | **/\r | |
366 | VOID\r | |
367 | TcpClearAllTimer (\r | |
368 | IN TCP_CB *Tcb\r | |
369 | )\r | |
370 | {\r | |
371 | Tcb->EnabledTimer = 0;\r | |
372 | TcpUpdateTimer (Tcb);\r | |
373 | }\r | |
374 | \r | |
375 | \r | |
376 | /**\r | |
377 | Enable the window prober timer and set the timeout value.\r | |
378 | \r | |
379 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
380 | \r | |
381 | @return None.\r | |
382 | \r | |
383 | **/\r | |
384 | VOID\r | |
385 | TcpSetProbeTimer (\r | |
386 | IN TCP_CB *Tcb\r | |
387 | )\r | |
388 | {\r | |
389 | if (!TCP_TIMER_ON (Tcb->EnabledTimer, TCP_TIMER_PROBE)) {\r | |
390 | Tcb->ProbeTime = Tcb->Rto;\r | |
391 | \r | |
392 | } else {\r | |
393 | Tcb->ProbeTime <<= 1;\r | |
394 | }\r | |
395 | \r | |
396 | if (Tcb->ProbeTime < TCP_RTO_MIN) {\r | |
397 | \r | |
398 | Tcb->ProbeTime = TCP_RTO_MIN;\r | |
399 | } else if (Tcb->ProbeTime > TCP_RTO_MAX) {\r | |
400 | \r | |
401 | Tcb->ProbeTime = TCP_RTO_MAX;\r | |
402 | }\r | |
403 | \r | |
404 | TcpSetTimer (Tcb, TCP_TIMER_PROBE, Tcb->ProbeTime);\r | |
405 | }\r | |
406 | \r | |
407 | \r | |
408 | /**\r | |
409 | Enable the keepalive timer and set the timeout value.\r | |
410 | \r | |
411 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
412 | \r | |
413 | @return None.\r | |
414 | \r | |
415 | **/\r | |
416 | VOID\r | |
417 | TcpSetKeepaliveTimer (\r | |
418 | IN TCP_CB *Tcb\r | |
419 | )\r | |
420 | {\r | |
421 | if (TCP_FLG_ON (Tcb->CtrlFlag, TCP_CTRL_NO_KEEPALIVE)) {\r | |
422 | return ;\r | |
423 | \r | |
424 | }\r | |
425 | \r | |
426 | //\r | |
427 | // Set the timer to KeepAliveIdle if either\r | |
428 | // 1. the keepalive timer is off\r | |
429 | // 2. The keepalive timer is on, but the idle\r | |
430 | // is less than KeepAliveIdle, that means the\r | |
431 | // connection is alive since our last probe.\r | |
432 | //\r | |
433 | if (!TCP_TIMER_ON (Tcb->EnabledTimer, TCP_TIMER_KEEPALIVE) ||\r | |
434 | (Tcb->Idle < Tcb->KeepAliveIdle)) {\r | |
435 | \r | |
436 | TcpSetTimer (Tcb, TCP_TIMER_KEEPALIVE, Tcb->KeepAliveIdle);\r | |
437 | Tcb->KeepAliveProbes = 0;\r | |
438 | \r | |
439 | } else {\r | |
440 | \r | |
441 | TcpSetTimer (Tcb, TCP_TIMER_KEEPALIVE, Tcb->KeepAlivePeriod);\r | |
442 | }\r | |
443 | }\r | |
444 | \r | |
445 | \r | |
446 | /**\r | |
447 | Backoff the RTO.\r | |
448 | \r | |
449 | @param Tcb Pointer to the TCP_CB of this TCP instance.\r | |
450 | \r | |
451 | @return None.\r | |
452 | \r | |
453 | **/\r | |
454 | VOID\r | |
455 | TcpBackoffRto (\r | |
456 | IN TCP_CB *Tcb\r | |
457 | )\r | |
458 | {\r | |
459 | //\r | |
460 | // Fold the RTT estimate if too many times, the estimate\r | |
461 | // may be wrong, fold it. So the next time a valid\r | |
462 | // measurement is sampled, we can start fresh.\r | |
463 | //\r | |
464 | if ((Tcb->LossTimes >= TCP_FOLD_RTT) && Tcb->SRtt) {\r | |
465 | Tcb->RttVar += Tcb->SRtt >> 2;\r | |
466 | Tcb->SRtt = 0;\r | |
467 | }\r | |
468 | \r | |
469 | Tcb->Rto <<= 1;\r | |
470 | \r | |
471 | if (Tcb->Rto < TCP_RTO_MIN) {\r | |
472 | \r | |
473 | Tcb->Rto = TCP_RTO_MIN;\r | |
474 | } else if (Tcb->Rto > TCP_RTO_MAX) {\r | |
475 | \r | |
476 | Tcb->Rto = TCP_RTO_MAX;\r | |
477 | }\r | |
478 | }\r | |
479 | \r | |
480 | \r | |
481 | /**\r | |
482 | Heart beat timer handler.\r | |
483 | \r | |
8a67d61d | 484 | @param Context Context of the timer event, ignored.\r |
485 | \r | |
486 | @return None.\r | |
487 | \r | |
488 | **/\r | |
489 | VOID\r | |
490 | EFIAPI\r | |
36ee91ca | 491 | TcpTickingDpc (\r |
8a67d61d | 492 | IN VOID *Context\r |
493 | )\r | |
494 | {\r | |
e48e37fc | 495 | LIST_ENTRY *Entry;\r |
496 | LIST_ENTRY *Next;\r | |
8a67d61d | 497 | TCP_CB *Tcb;\r |
498 | INT16 Index;\r | |
499 | \r | |
500 | mTcpTick++;\r | |
501 | mTcpGlobalIss += 100;\r | |
502 | \r | |
503 | //\r | |
504 | // Don't use LIST_FOR_EACH, which isn't delete safe.\r | |
505 | //\r | |
506 | for (Entry = mTcpRunQue.ForwardLink; Entry != &mTcpRunQue; Entry = Next) {\r | |
507 | \r | |
508 | Next = Entry->ForwardLink;\r | |
509 | \r | |
510 | Tcb = NET_LIST_USER_STRUCT (Entry, TCP_CB, List);\r | |
511 | \r | |
512 | if (Tcb->State == TCP_CLOSED) {\r | |
513 | continue;\r | |
514 | }\r | |
515 | //\r | |
516 | // The connection is doing RTT measurement.\r | |
517 | //\r | |
518 | if (TCP_FLG_ON (Tcb->CtrlFlag, TCP_CTRL_RTT_ON)) {\r | |
519 | Tcb->RttMeasure++;\r | |
520 | }\r | |
521 | \r | |
522 | Tcb->Idle++;\r | |
523 | \r | |
524 | if (Tcb->DelayedAck) {\r | |
525 | TcpSendAck (Tcb);\r | |
526 | }\r | |
527 | \r | |
528 | //\r | |
529 | // No timer is active or no timer expired\r | |
530 | //\r | |
531 | if (!TCP_FLG_ON (Tcb->CtrlFlag, TCP_CTRL_TIMER_ON) ||\r | |
532 | ((--Tcb->NextExpire) > 0)) {\r | |
533 | \r | |
534 | continue;\r | |
535 | }\r | |
536 | \r | |
537 | //\r | |
538 | // Call the timeout handler for each expired timer.\r | |
539 | //\r | |
540 | for (Index = 0; Index < TCP_TIMER_NUMBER; Index++) {\r | |
541 | \r | |
542 | if (TCP_TIMER_ON (Tcb->EnabledTimer, Index) &&\r | |
543 | TCP_TIME_LEQ (Tcb->Timer[Index], mTcpTick)) {\r | |
544 | //\r | |
545 | // disable the timer before calling the handler\r | |
546 | // in case the handler enables it again.\r | |
547 | //\r | |
548 | TCP_CLEAR_TIMER (Tcb->EnabledTimer, Index);\r | |
549 | mTcpTimerHandler[Index](Tcb);\r | |
550 | \r | |
551 | //\r | |
552 | // The Tcb may have been deleted by the timer, or\r | |
553 | // no other timer is set.\r | |
554 | //\r | |
555 | if ((Next->BackLink != Entry) ||\r | |
556 | (Tcb->EnabledTimer == 0)) {\r | |
557 | \r | |
558 | goto NextConnection;\r | |
559 | }\r | |
560 | }\r | |
561 | }\r | |
562 | \r | |
563 | TcpUpdateTimer (Tcb);\r | |
564 | NextConnection:\r | |
565 | ;\r | |
566 | }\r | |
567 | }\r | |
36ee91ca | 568 | \r |
569 | /**\r | |
570 | Heart beat timer handler, queues the DPC at TPL_CALLBACK.\r | |
571 | \r | |
572 | @param Event Timer event signaled, ignored.\r | |
573 | @param Context Context of the timer event, ignored.\r | |
574 | \r | |
575 | @return None.\r | |
576 | \r | |
577 | **/\r | |
578 | VOID\r | |
579 | EFIAPI\r | |
580 | TcpTicking (\r | |
581 | IN EFI_EVENT Event,\r | |
582 | IN VOID *Context\r | |
583 | )\r | |
584 | {\r | |
585 | NetLibQueueDpc (TPL_CALLBACK, TcpTickingDpc, Context);\r | |
586 | }\r | |
587 | \r |