patch-2.2.14 linux/drivers/net/sk98lin/skqueue.c

• Lines: 205
• Date: Tue Jan 4 10:12:18 2000
• Orig file: v2.2.13/linux/drivers/net/sk98lin/skqueue.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.2.13/linux/drivers/net/sk98lin/skqueue.c linux/drivers/net/sk98lin/skqueue.c
@@ -0,0 +1,204 @@
+/******************************************************************************
+ *
+ * Name:	skqueue.c
+ * Project:	GEnesis, PCI Gigabit Ethernet Adapter
+ * Version:	$Revision: 1.14 $
+ * Date:	$Date: 1998/10/15 15:11:35 $
+ * Purpose:	Management of an event queue.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *	(C)Copyright 1998,1999 SysKonnect,
+ *	a business unit of Schneider & Koch & Co. Datensysteme GmbH.
+ *
+ *	See the file "skge.c" for further information.
+ *
+ *	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 1.14  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 1.14 1998/10/15 15:11:35 gklug 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) {
+		case SKGE_DRV :		/* Driver Event */
+			Rtv = SkDrvEvent(pAC,Ioc,pEv->Event,pEv->Para);
+			break ;
+		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 ;
+		case SKGE_HWAC :
+			Rtv = SkGeSirqEvent(pAC,Ioc,pEv->Event,pEv->Para);
+			break ;
+#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 */