/*******************************************************************************
Copyright (C) Marvell International Ltd. and its affiliates

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File under one of the following license alternatives, please (i) delete this
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********************************************************************************
Marvell GPL License Option

If you received this File from Marvell, you may opt to use, redistribute and/or
modify this File in accordance with the terms and conditions of the General
Public License Version 2, June 1991 (the "GPL License"), a copy of which is
available along with the File in the license.txt file or by writing to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or
on the worldwide web at http://www.gnu.org/licenses/gpl.txt.

THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY
DISCLAIMED.  The GPL License provides additional details about this warranty
disclaimer.
*******************************************************************************/

#include "mvOs.h"
#include "mvCommon.h"

#include "gbe/mvNetaRegs.h"

#include "mvPnc.h"
#include "mvTcam.h"

#ifdef MV_ETH_PNC_AGING

#define PNC_AGING_CNTRS_ADDR_MASK       (0 << 12)
#define PNC_AGING_GROUPS_ADDR_MASK      (1 << 12)
#define PNC_AGING_SCANNER_ADDR_MASK     (2 << 12)

#define PNC_AGING_CNTR_IDX_ADDR_OFFS    2
#define PNC_AGING_GROUP_ADDR_OFFS       2
#define PNC_AGING_LOG_ADDR_OFFS         5

#define PNC_AGING_CNTR_OFFS             0
#define PNC_AGING_CNTR_MAX              0x3ffffff
#define PNC_AGING_CNTR_MASK             (PNC_AGING_CNTR_MAX << PNC_AGING_CNTR_OFFS)

#define PNC_AGING_GROUP_OFFS            26
#define PNC_AGING_GROUP_ALL_MASK        (0x3 << PNC_AGING_GROUP_OFFS)
#define PNC_AGING_GROUP_MASK(gr)        ((gr) << PNC_AGING_GROUP_OFFS)

#define PNC_AGING_READ_LU_LOG_BIT       28
#define PNC_AGING_READ_LU_LOG_MASK      (1 << PNC_AGING_READ_LU_LOG_BIT)

#define PNC_AGING_READ_MU_LOG_BIT       29
#define PNC_AGING_READ_MU_LOG_MASK      (1 << PNC_AGING_READ_MU_LOG_BIT)

#define PNC_AGING_SKIP_LU_SCAN_BIT      30
#define PNC_AGING_SKIP_LU_SCAN_MASK     (1 << PNC_AGING_SKIP_LU_SCAN_BIT)

#define PNC_AGING_SKIP_MU_SCAN_BIT      31
#define PNC_AGING_SKIP_MU_SCAN_MASK     (1 << PNC_AGING_SKIP_MU_SCAN_BIT)

#define PNC_AGING_LOG_CNTR_IDX_OFFS     0
#define PNC_AGING_LOG_CNTR_IDX_MASK     (0x3FF << PNC_AGING_LOG_CNTR_IDX_OFFS)

#define PNC_AGING_LOG_VALID_BIT         31
#define PNC_AGING_LOG_VALID_MASK        (1 << PNC_AGING_LOG_VALID_BIT)

extern char tcam_text[CONFIG_MV_PNC_TCAM_LINES][TCAM_TEXT];
extern MV_U8 *mvPncVirtBase;

void    mvPncAgingCntrWrite(int tid, MV_U32 w32)
{
	MV_U32  va;

	WARN_ON_OOR(tid >= CONFIG_MV_PNC_TCAM_LINES);

	va = (MV_U32)mvPncVirtBase;
	va |= PNC_AGING_ACCESS_MASK;
	va |= PNC_AGING_CNTRS_ADDR_MASK;
	va |= (tid << PNC_AGING_CNTR_IDX_ADDR_OFFS);
/*
	mvOsPrintf("%s: tid=%d, va=0x%x, w32=0x%08x\n",
		__func__, tid, va, w32);
*/
	MV_MEMIO32_WRITE(va, w32);
}


MV_U32  mvPncAgingCntrRead(int tid)
{
	MV_U32  va, w32;

	ERR_ON_OOR(tid >= CONFIG_MV_PNC_TCAM_LINES);

	va = (MV_U32)mvPncVirtBase;
	va |= PNC_AGING_ACCESS_MASK;
	va |= PNC_AGING_CNTRS_ADDR_MASK;
	va |= (tid << PNC_AGING_CNTR_IDX_ADDR_OFFS);

	w32 = MV_MEMIO32_READ(va);
/*
	mvOsPrintf("%s: tid=%d, va=0x%x, w32=0x%08x\n",
		__func__, tid, va, w32);
*/
	return w32;
}

MV_U32  mvPncAgingGroupCntrRead(int group)
{
	MV_U32  va, w32;

	ERR_ON_OOR(group >= MV_PNC_AGING_MAX_GROUP);

	va = (MV_U32)mvPncVirtBase;
	va |= PNC_AGING_ACCESS_MASK;
	va |= PNC_AGING_GROUPS_ADDR_MASK;
	va |= (group << PNC_AGING_GROUP_ADDR_OFFS);

	w32 = MV_MEMIO32_READ(va);

	return w32;
}

void    mvPncAgingGroupCntrClear(int group)
{
	MV_U32  w32;

	WARN_ON_OOR(group >= MV_PNC_AGING_MAX_GROUP);

	w32 = MV_REG_READ(MV_PNC_AGING_CTRL_REG);
	w32 |= MV_PNC_AGING_GROUP_RESET(group);
	MV_REG_WRITE(MV_PNC_AGING_CTRL_REG, w32);
}

MV_U32  mvPncAgingLogEntryRead(int group, int mostly)
{
	MV_U32  va, w32;

	ERR_ON_OOR(group >= MV_PNC_AGING_MAX_GROUP);

	va = (MV_U32)mvPncVirtBase;
	va |= PNC_AGING_ACCESS_MASK;
	va |= PNC_AGING_SCANNER_ADDR_MASK;
	va |= ((MV_PNC_AGING_MAX_GROUP * mostly + group) << PNC_AGING_LOG_ADDR_OFFS);

	w32 = MV_MEMIO32_READ(va);

	return w32;
}

void    mvPncAgingCntrShow(int tid, MV_32 w32)
{
	mvOsPrintf("[%3d] (%-12s): gr=%d - %10u", tid, tcam_text[tid],
		((w32 & PNC_AGING_GROUP_ALL_MASK) >> PNC_AGING_GROUP_OFFS),
		((w32 & PNC_AGING_CNTR_MASK) >> PNC_AGING_CNTR_OFFS));

	if (w32 & PNC_AGING_READ_LU_LOG_MASK)
		mvOsPrintf(", LU_READ");

	if (w32 & PNC_AGING_READ_MU_LOG_MASK)
		mvOsPrintf(", MU_READ");

	if (w32 & PNC_AGING_SKIP_LU_SCAN_MASK)
		mvOsPrintf(", LU_SKIP");

	if (w32 & PNC_AGING_SKIP_MU_SCAN_MASK)
		mvOsPrintf(", MU_SKIP");

	mvOsPrintf("\n");
}

void    mvPncAgingDump(int all)
{
	int     tid, gr;
	MV_U32  cntrVal;

	mvOsPrintf("TCAM entries Aging counters: %s\n", all ? "ALL" : "Non ZERO");
	for (tid = 0; tid < CONFIG_MV_PNC_TCAM_LINES; tid++) {
		cntrVal = mvPncAgingCntrRead(tid);

		if (all || (cntrVal & PNC_AGING_CNTR_MASK))
			mvPncAgingCntrShow(tid, cntrVal);
	}
	mvOsPrintf("Aging Counters Summary per group: \n");
	for (gr = 0; gr < MV_PNC_AGING_MAX_GROUP; gr++)
		mvOsPrintf("group #%d: %10u\n", gr, mvPncAgingGroupCntrRead(gr));
}

static MV_U32  mvPncScannerLog[CONFIG_MV_PNC_TCAM_LINES];
static MV_U32  mvPncAgingCntrs[CONFIG_MV_PNC_TCAM_LINES];

void    mvPncAgingScannerDump(void)
{
	int     i, j, gr;
	MV_U32  w32;

	mvOsPrintf("Scanner LU Log entries for aging counters:\n");
	for (gr = 0; gr < MV_PNC_AGING_MAX_GROUP; gr++) {
		i = 0;
		mvOsPrintf("LU group #%d:\n", gr);
		while (i < CONFIG_MV_PNC_TCAM_LINES) {
			w32 = mvPncAgingLogEntryRead(gr, 0);
			if ((w32 & PNC_AGING_LOG_VALID_MASK) == 0)
				break;

			mvOsDelay(20);
			mvPncAgingCntrs[i] = mvPncAgingCntrRead(w32 & PNC_AGING_LOG_CNTR_IDX_MASK);
			mvPncScannerLog[i] = w32;
			i++;
		}
		for (j = 0; j < i; j++) {
			mvOsPrintf("%d: 0x%08x - tid=%u, 0x%08x - cntr=%u\n",
				j, mvPncScannerLog[j], mvPncScannerLog[j] & PNC_AGING_LOG_CNTR_IDX_MASK,
				mvPncAgingCntrs[j],
				(mvPncAgingCntrs[j] & PNC_AGING_CNTR_MASK) >> PNC_AGING_CNTR_OFFS);
		}
	}

	mvOsPrintf("\n");
	mvOsPrintf("Scanner MU Log entries for aging counters:\n");
	for (gr = 0; gr < MV_PNC_AGING_MAX_GROUP; gr++) {
		i = 0;
		mvOsPrintf("MU group #%d:\n", gr);
		while (i < CONFIG_MV_PNC_TCAM_LINES) {
			w32 = mvPncAgingLogEntryRead(gr, 1);
			/*mvOsDelay(1);*/
			if ((w32 & PNC_AGING_LOG_VALID_MASK) == 0)
				break;

			mvOsDelay(20);
			mvPncAgingCntrs[i] = mvPncAgingCntrRead(w32 & PNC_AGING_LOG_CNTR_IDX_MASK);
			mvPncScannerLog[i] = w32;
			i++;
		}
		for (j = 0; j < i; j++) {
			mvOsPrintf("%d: 0x%08x - tid=%u, 0x%08x - cntr=%u\n",
				j, mvPncScannerLog[j], mvPncScannerLog[j] & PNC_AGING_LOG_CNTR_IDX_MASK,
				mvPncAgingCntrs[j],
				(mvPncAgingCntrs[j] & PNC_AGING_CNTR_MASK) >> PNC_AGING_CNTR_OFFS);
		}
	}
}

void    mvPncAgingCntrClear(int tid)
{
	MV_U32  w32;

	w32 = mvPncAgingCntrRead(tid);

	w32 &= ~PNC_AGING_CNTR_MASK;
	w32 &= ~(PNC_AGING_READ_LU_LOG_MASK | PNC_AGING_READ_MU_LOG_MASK);

	mvPncAgingCntrWrite(tid, w32);
}

void    mvPncAgingCntrGroupSet(int tid, int gr)
{
	MV_U32  w32;

	w32 = PNC_AGING_GROUP_MASK(gr);

	/*mvOsPrintf("%s: tid=%d, gr=%d, w32=0x%x\n", __FUNCTION__, tid, gr, w32);*/
	mvPncAgingCntrWrite(tid, w32);
}

/* Reset all Aging counters */
void    mvPncAgingReset(void)
{
	int tid, gr;

	for (tid = 0; tid < CONFIG_MV_PNC_TCAM_LINES; tid++)
		mvPncAgingCntrClear(tid);

	for (gr = 0; gr < MV_PNC_AGING_MAX_GROUP; gr++)
		mvPncAgingGroupCntrClear(gr);
}
#endif /* MV_ETH_PNC_AGING */