linux/drivers/net/ethernet/chelsio/cxgb/espi.c

// SPDX-License-Identifier: GPL-2.0-only
/*****************************************************************************
 *                                                                           *
 * File: espi.c                                                              *
 * $Revision: 1.14 $                                                         *
 * $Date: 2005/05/14 00:59:32 $                                              *
 * Description:                                                              *
 *  Ethernet SPI functionality.                                              *
 *  part of the Chelsio 10Gb Ethernet Driver.                                *
 *                                                                           *
 *                                                                           *
 * http://www.chelsio.com                                                    *
 *                                                                           *
 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
 * All rights reserved.                                                      *
 *                                                                           *
 * Maintainers: [email protected]                                      *
 *                                                                           *
 * Authors: Dimitrios Michailidis   <[email protected]>                         *
 *          Tina Yang               <[email protected]>                     *
 *          Felix Marti             <[email protected]>                      *
 *          Scott Bardone           <[email protected]>                   *
 *          Kurt Ottaway            <[email protected]>                   *
 *          Frank DiMambro          <[email protected]>                      *
 *                                                                           *
 * History:                                                                  *
 *                                                                           *
 ****************************************************************************/

#include "common.h"
#include "regs.h"
#include "espi.h"

struct peespi { … };

#define ESPI_INTR_MASK …
#define MON_MASK …

#define TRICN_CNFG …
#define TRICN_CMD_READ …
#define TRICN_CMD_WRITE …
#define TRICN_CMD_ATTEMPTS …

static int tricn_write(adapter_t *adapter, int bundle_addr, int module_addr,
		       int ch_addr, int reg_offset, u32 wr_data)
{ … }

static int tricn_init(adapter_t *adapter)
{ … }

void t1_espi_intr_enable(struct peespi *espi)
{ … }

void t1_espi_intr_clear(struct peespi *espi)
{ … }

void t1_espi_intr_disable(struct peespi *espi)
{ … }

int t1_espi_intr_handler(struct peespi *espi)
{ … }

const struct espi_intr_counts *t1_espi_get_intr_counts(struct peespi *espi)
{ … }

static void espi_setup_for_pm3393(adapter_t *adapter)
{ … }

static void espi_setup_for_vsc7321(adapter_t *adapter)
{ … }

/*
 * Note that T1B requires at least 2 ports for IXF1010 due to a HW bug.
 */
static void espi_setup_for_ixf1010(adapter_t *adapter, int nports)
{ … }

int t1_espi_init(struct peespi *espi, int mac_type, int nports)
{ … }

void t1_espi_destroy(struct peespi *espi)
{ … }

struct peespi *t1_espi_create(adapter_t *adapter)
{ … }

#if 0
void t1_espi_set_misc_ctrl(adapter_t *adapter, u32 val)
{
	struct peespi *espi = adapter->espi;

	if (!is_T2(adapter))
		return;
	spin_lock(&espi->lock);
	espi->misc_ctrl = (val & ~MON_MASK) |
			  (espi->misc_ctrl & MON_MASK);
	writel(espi->misc_ctrl, adapter->regs + A_ESPI_MISC_CONTROL);
	spin_unlock(&espi->lock);
}
#endif  /*  0  */

u32 t1_espi_get_mon(adapter_t *adapter, u32 addr, u8 wait)
{ … }

/*
 * This function is for T204 only.
 * compare with t1_espi_get_mon(), it reads espiInTxSop[0 ~ 3] in
 * one shot, since there is no per port counter on the out side.
 */
int t1_espi_get_mon_t204(adapter_t *adapter, u32 *valp, u8 wait)
{ … }