1 /******************************************************************************
4 * Project: Gigabit Ethernet Adapters, Event Scheduler Module
5 * Version: $Revision: 1.20 $
6 * Date: $Date: 2003/09/16 13:44:00 $
7 * Purpose: Management of an event queue.
9 ******************************************************************************/
11 /******************************************************************************
13 * (C)Copyright 1998-2002 SysKonnect GmbH.
14 * (C)Copyright 2002-2003 Marvell.
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
21 * The information in this file is provided "AS IS" without warranty.
23 ******************************************************************************/
27 * Event queue and dispatcher
29 #if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM))))
30 static const char SysKonnectFileId[] =
31 "@(#) $Id: skqueue.c,v 1.20 2003/09/16 13:44:00 rschmidt Exp $ (C) Marvell.";
34 #include "h/skdrv1st.h" /* Driver Specific Definitions */
35 #include "h/skqueue.h" /* Queue Definitions */
36 #include "h/skdrv2nd.h" /* Adapter Control- and Driver specific Def. */
40 Event queue management.
52 * init event queue management
54 * Must be called during init level 0.
57 SK_AC *pAC, /* Adapter context */
58 SK_IOC Ioc, /* IO context */
59 int Level) /* Init level */
63 pAC->Event.EvPut = pAC->Event.EvGet = pAC->Event.EvQueue;
74 SK_AC *pAC, /* Adapters context */
75 SK_U32 Class, /* Event Class */
76 SK_U32 Event, /* Event to be queued */
77 SK_EVPARA Para) /* Event parameter */
79 pAC->Event.EvPut->Class = Class;
80 pAC->Event.EvPut->Event = Event;
81 pAC->Event.EvPut->Para = Para;
83 if (++pAC->Event.EvPut == &pAC->Event.EvQueue[SK_MAX_EVENT])
84 pAC->Event.EvPut = pAC->Event.EvQueue;
86 if (pAC->Event.EvPut == pAC->Event.EvGet) {
87 SK_ERR_LOG(pAC, SK_ERRCL_NORES, SKERR_Q_E001, SKERR_Q_E001MSG);
93 * while event queue is not empty
94 * get event from queue
95 * send command to state machine
97 * return error reported by individual Event function
98 * 0 if no error occured.
100 int SkEventDispatcher(
101 SK_AC *pAC, /* Adapters Context */
102 SK_IOC Ioc) /* Io context */
104 SK_EVENTELEM *pEv; /* pointer into queue */
108 pEv = pAC->Event.EvGet;
110 PRINTF("dispatch get %x put %x\n", pEv, pAC->Event.ev_put);
112 while (pEv != pAC->Event.EvPut) {
113 PRINTF("dispatch Class %d Event %d\n", pEv->Class, pEv->Event);
115 switch (Class = pEv->Class) {
116 #ifndef SK_USE_LAC_EV
118 case SKGE_RLMT: /* RLMT Event */
119 Rtv = SkRlmtEvent(pAC, Ioc, pEv->Event, pEv->Para);
121 case SKGE_I2C: /* I2C Event */
122 Rtv = SkI2cEvent(pAC, Ioc, pEv->Event, pEv->Para);
124 case SKGE_PNMI: /* PNMI Event */
125 Rtv = SkPnmiEvent(pAC, Ioc, pEv->Event, pEv->Para);
127 #endif /* not SK_SLIM */
128 #endif /* not SK_USE_LAC_EV */
129 case SKGE_DRV: /* Driver Event */
130 Rtv = SkDrvEvent(pAC, Ioc, pEv->Event, pEv->Para);
132 #ifndef SK_USE_SW_TIMER
134 Rtv = SkGeSirqEvent(pAC, Ioc, pEv->Event, pEv->Para);
136 #else /* !SK_USE_SW_TIMER */
138 Rtv = SkSwtEvent(pAC, Ioc, pEv->Event, pEv->Para);
140 #endif /* !SK_USE_SW_TIMER */
143 Rtv = SkLacpEvent(pAC, Ioc, pEv->Event, pEv->Para);
146 Rtv = SkRsfEvent(pAC, Ioc, pEv->Event, pEv->Para);
149 Rtv = SkMarkerEvent(pAC, Ioc, pEv->Event, pEv->Para);
152 Rtv = SkFdEvent(pAC, Ioc, pEv->Event, pEv->Para);
154 #endif /* SK_USE_LAC_EV */
157 Rtv = SkCsEvent(pAC, Ioc, pEv->Event, pEv->Para);
159 #endif /* SK_USE_CSUM */
161 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_Q_E002, SKERR_Q_E002MSG);
169 if (++pEv == &pAC->Event.EvQueue[SK_MAX_EVENT])
170 pEv = pAC->Event.EvQueue;
172 /* Renew get: it is used in queue_events to detect overruns */
173 pAC->Event.EvGet = pEv;