diff options
Diffstat (limited to 'drivers/sk98lin/skqueue.c')
| -rw-r--r-- | drivers/sk98lin/skqueue.c | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/drivers/sk98lin/skqueue.c b/drivers/sk98lin/skqueue.c new file mode 100644 index 000000000..c279cd17a --- /dev/null +++ b/drivers/sk98lin/skqueue.c @@ -0,0 +1,236 @@ +/****************************************************************************** + * + * Name: skqueue.c + * Project: GEnesis, PCI Gigabit Ethernet Adapter + * Version: $Revision: 1.18 $ + * Date: $Date: 2002/05/07 14:11:11 $ + * Purpose: Management of an event queue. + * + ******************************************************************************/ + +/****************************************************************************** + * + * (C)Copyright 1998,1999 SysKonnect, + * a business unit of Schneider & Koch & Co. Datensysteme GmbH. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * The information in this file is provided "AS IS" without warranty. + * + ******************************************************************************/ + +/****************************************************************************** + * + * History: + * + * $Log: skqueue.c,v $ + * Revision 1.18 2002/05/07 14:11:11 rwahl + * Fixed Watcom Precompiler error. + * + * Revision 1.17 2002/03/25 10:06:41 mkunz + * SkIgnoreEvent deleted + * + * Revision 1.16 2002/03/15 10:51:59 mkunz + * Added event classes for link aggregation + * + * Revision 1.15 1999/11/22 13:36:29 cgoos + * Changed license header to GPL. + * + * Revision 1.14 1998/10/15 15:11:35 gklug + * fix: ID_sccs to SysKonnectFileId + * + * Revision 1.13 1998/09/08 08:47:52 gklug + * add: init level handling + * + * Revision 1.12 1998/09/08 07:43:20 gklug + * fix: Sirq Event function name + * + * Revision 1.11 1998/09/08 05:54:34 gklug + * chg: define SK_CSUM is replaced by SK_USE_CSUM + * + * Revision 1.10 1998/09/03 14:14:49 gklug + * add: CSUM and HWAC Eventclass and function. + * + * Revision 1.9 1998/08/19 09:50:50 gklug + * fix: remove struct keyword from c-code (see CCC) add typedefs + * + * Revision 1.8 1998/08/17 13:43:11 gklug + * chg: Parameter will be union of 64bit para, 2 times SK_U32 or SK_PTR + * + * Revision 1.7 1998/08/14 07:09:11 gklug + * fix: chg pAc -> pAC + * + * Revision 1.6 1998/08/11 12:13:14 gklug + * add: return code feature of Event service routines + * add: correct Error log calls + * + * Revision 1.5 1998/08/07 12:53:45 gklug + * fix: first compiled version + * + * Revision 1.4 1998/08/07 09:20:48 gklug + * adapt functions to C coding conventions. + * + * Revision 1.3 1998/08/05 11:29:32 gklug + * rmv: Timer event entry. Timer will queue event directly + * + * Revision 1.2 1998/07/31 11:22:40 gklug + * Initial version + * + * Revision 1.1 1998/07/30 15:14:01 gklug + * Initial version. Adapted from SMT + * + * + * + ******************************************************************************/ + + +/* + Event queue and dispatcher +*/ +static const char SysKonnectFileId[] = + "$Header: /usr56/projects/ge/schedule/skqueue.c,v 1.18 2002/05/07 14:11:11 rwahl Exp $" ; + +#include "h/skdrv1st.h" /* Driver Specific Definitions */ +#include "h/skqueue.h" /* Queue Definitions */ +#include "h/skdrv2nd.h" /* Adapter Control- and Driver specific Def. */ + +#ifdef __C2MAN__ +/* + Event queue management. + + General Description: + + */ +intro() +{} +#endif + +#define PRINTF(a,b,c) + +/* + * init event queue management + * + * Must be called during init level 0. + */ +void SkEventInit( +SK_AC *pAC, /* Adapter context */ +SK_IOC Ioc, /* IO context */ +int Level) /* Init level */ +{ + switch (Level) { + case SK_INIT_DATA: + pAC->Event.EvPut = pAC->Event.EvGet = pAC->Event.EvQueue ; + break; + default: + break; + } +} + +/* + * add event to queue + */ +void SkEventQueue( +SK_AC *pAC, /* Adapters context */ +SK_U32 Class, /* Event Class */ +SK_U32 Event, /* Event to be queued */ +SK_EVPARA Para) /* Event parameter */ +{ + pAC->Event.EvPut->Class = Class ; + pAC->Event.EvPut->Event = Event ; + pAC->Event.EvPut->Para = Para ; + if (++pAC->Event.EvPut == &pAC->Event.EvQueue[SK_MAX_EVENT]) + pAC->Event.EvPut = pAC->Event.EvQueue ; + + if (pAC->Event.EvPut == pAC->Event.EvGet) { + SK_ERR_LOG(pAC, SK_ERRCL_NORES, SKERR_Q_E001, SKERR_Q_E001MSG) ; + } +} + +/* + * event dispatcher + * while event queue is not empty + * get event from queue + * send command to state machine + * end + * return error reported by individual Event function + * 0 if no error occured. + */ +int SkEventDispatcher( +SK_AC *pAC, /* Adapters Context */ +SK_IOC Ioc) /* Io context */ +{ + SK_EVENTELEM *pEv ; /* pointer into queue */ + SK_U32 Class ; + int Rtv ; + + pEv = pAC->Event.EvGet ; + PRINTF("dispatch get %x put %x\n",pEv,pAC->Event.ev_put) ; + while (pEv != pAC->Event.EvPut) { + PRINTF("dispatch Class %d Event %d\n",pEv->Class,pEv->Event) ; + switch(Class = pEv->Class) { +#ifndef SK_USE_LAC_EV + case SKGE_RLMT : /* RLMT Event */ + Rtv = SkRlmtEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; + case SKGE_I2C : /* I2C Event */ + Rtv = SkI2cEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; + case SKGE_PNMI : + Rtv = SkPnmiEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; +#endif /* SK_USE_LAC_EV */ + case SKGE_DRV : /* Driver Event */ + Rtv = SkDrvEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; +#ifndef SK_USE_SW_TIMER + case SKGE_HWAC : + Rtv = SkGeSirqEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; +#else /* !SK_USE_SW_TIMER */ + case SKGE_SWT : + Rtv = SkSwtEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; +#endif /* !SK_USE_SW_TIMER */ +#ifdef SK_USE_LAC_EV + case SKGE_LACP : + Rtv = SkLacpEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; + case SKGE_RSF : + Rtv = SkRsfEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; + case SKGE_MARKER : + Rtv = SkMarkerEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; + case SKGE_FD : + Rtv = SkFdEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; +#endif /* SK_USE_LAC_EV */ +#ifdef SK_USE_CSUM + case SKGE_CSUM : + Rtv = SkCsEvent(pAC,Ioc,pEv->Event,pEv->Para); + break ; +#endif /* SK_USE_CSUM */ + default : + SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_Q_E002, + SKERR_Q_E002MSG) ; + Rtv = 0; + } + + if (Rtv != 0) { + return(Rtv) ; + } + + if (++pEv == &pAC->Event.EvQueue[SK_MAX_EVENT]) + pEv = pAC->Event.EvQueue ; + + /* Renew get: it is used in queue_events to detect overruns */ + pAC->Event.EvGet = pEv; + } + + return(0) ; +} + +/* End of file */ |