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path: root/drivers/net/sk98lin/skqueue.c
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Diffstat (limited to 'drivers/net/sk98lin/skqueue.c')
-rw-r--r--drivers/net/sk98lin/skqueue.c242
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diff --git a/drivers/net/sk98lin/skqueue.c b/drivers/net/sk98lin/skqueue.c
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+++ b/drivers/net/sk98lin/skqueue.c
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+/******************************************************************************
+ *
+ * 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
+ *
+ *
+ *
+ ******************************************************************************/
+
+
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
+/*
+ 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) ;
+}
+
+#endif /* CONFIG_SK98 */
+
+/* End of file */