d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/*******************************************************************************
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * CDDL HEADER START
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * The contents of this file are subject to the terms of the
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Common Development and Distribution License (the "License").
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * You may not use this file except in compliance with the License.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * or http://www.opensolaris.org/os/licensing.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * See the License for the specific language governing permissions
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * and limitations under the License.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * When distributing Covered Code, include this CDDL HEADER in each
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * If applicable, add the following below this CDDL HEADER, with the
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * fields enclosed by brackets "[]" replaced with your own identifying
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * information: Portions Copyright [yyyy] [name of copyright owner]
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * CDDL HEADER END
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Copyright 2014 QLogic Corporation
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * The contents of this file are subject to the terms of the
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * QLogic End User License (the "License").
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * You may not use this file except in compliance with the License.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * You can obtain a copy of the License at
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * http://www.qlogic.com/Resources/Documents/DriverDownloadHelp/
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * QLogic_End_User_Software_License.txt
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * See the License for the specific language governing permissions
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * and limitations under the License.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Module Description:
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * History:
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * 28/06/11 Shay Haroush Inception.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi ******************************************************************************/
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#include "lm5710.h"
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#include "lm_dcbx_mp.h"
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/*******************************************************************************
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Constants.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi ******************************************************************************/
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define MAX_NUM_OF_ACTIVE_ETH_CONS_PER_COS(_pdev) LM_SB_CNT(_pdev)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define ETH_CHAIN_COS0_START_OFFSET(_pdev) (0)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define ETH_CHAIN_COS1_START_OFFSET(_pdev) (ETH_CHAIN_COS0_START_OFFSET(_pdev) + LM_SB_CNT(_pdev) + MAX_NON_RSS_CHAINS)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define ETH_CHAIN_COS2_START_OFFSET(_pdev) (ETH_CHAIN_COS1_START_OFFSET(_pdev) + LM_SB_CNT(_pdev))
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/*******************************************************************************
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Defines.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi ******************************************************************************/
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define ETH_IS_CHAIN_IN_COS0_RANGE(_pdev, _chain) ( lm_mp_eth_is_chain_in_cosx_range(_pdev, _chain, ETH_CHAIN_COS0_START_OFFSET(_pdev)))
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define ETH_IS_CHAIN_IN_COS1_RANGE(_pdev, _chain) ( lm_mp_eth_is_chain_in_cosx_range(_pdev, _chain, ETH_CHAIN_COS1_START_OFFSET(_pdev)))
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define ETH_IS_CHAIN_IN_COS2_RANGE(_pdev, _chain) ( lm_mp_eth_is_chain_in_cosx_range(_pdev, _chain, ETH_CHAIN_COS2_START_OFFSET(_pdev)))
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define ETH_CID_COSX_END_OFFSET(_pdev, _val) (_val + MAX_NUM_OF_ACTIVE_ETH_CONS_PER_COS(pdev))
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/**
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @description
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Check if chain is in COS range based on COS start offset.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param chain
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param cos_start_offset
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @return u8_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi */
d14abf155341d55053c76eeec58b787a456b753bRobert MustacchiSTATIC u8_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchilm_mp_eth_is_chain_in_cosx_range(
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi IN lm_device_t *pdev,
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi IN const u32_t chain,
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi IN const u32_t cos_start_offset)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi{
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi if((cos_start_offset <= chain) &&
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi (chain < ETH_CID_COSX_END_OFFSET(pdev, cos_start_offset)))
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return TRUE;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi else
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return FALSE;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi}
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/**
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @description
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Get COS number based on chain.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * If the chain doesn't belong to a specific COS (e.g. ISCSI L2
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * chain)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param pdev
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param chain
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @return u8_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi */
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchiu8_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchilm_mp_cos_from_chain(IN struct _lm_device_t *pdev,
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi IN const u32_t chain)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi{
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi // Cos 0 is the default
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi u8_t cos = ETH_MP_MAX_COS_SUPPORTED;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi if (ETH_IS_CHAIN_IN_COS0_RANGE(pdev, chain) )
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi cos = 0;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi else if (ETH_IS_CHAIN_IN_COS1_RANGE(pdev, chain) )
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi cos = 1;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi else if (ETH_IS_CHAIN_IN_COS2_RANGE(pdev, chain) )
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi cos = 2;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi else
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi DbgMessage(pdev, INFORMi|INFORMl2sp, " lm_mp_cos_from_chain: ");
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return cos;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi}
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/**
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @description
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Return chain type.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param pdev
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param chain
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @return lm_chain_type_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi */
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchilm_chain_type_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchilm_mp_get_chain_type(IN struct _lm_device_t *pdev,
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi IN const u32_t chain)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi{
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi const u8_t cos = lm_mp_cos_from_chain(pdev, chain);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi if (0 == cos)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return lm_chain_type_cos_reg;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi else if (cos < ETH_MP_MAX_COS_SUPPORTED)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return lm_chain_type_cos_tx_only;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi else
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return lm_chain_type_not_cos;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi}
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/**
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @description
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * GET L2 chain COS start offset.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param pdev
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param cos
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @return u8_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi */
d14abf155341d55053c76eeec58b787a456b753bRobert MustacchiSTATIC u8_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchilm_mp_get_eth_chain_cosx_start_offset(IN struct _lm_device_t *pdev,
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi IN const u8_t cos)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi{
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi u8_t cosx_start_offset = 0;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi switch(cos)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi case 0:
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi cosx_start_offset = ETH_CHAIN_COS0_START_OFFSET(pdev);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi break;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi case 1:
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi cosx_start_offset = ETH_CHAIN_COS1_START_OFFSET(pdev);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi break;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi case 2:
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi cosx_start_offset = ETH_CHAIN_COS2_START_OFFSET(pdev);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi break;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi default:
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi DbgBreakMsg("invalid cos");
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi cosx_start_offset = ETH_CHAIN_COS0_START_OFFSET(pdev);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return cosx_start_offset;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi}
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/**
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @description
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Get regular chain from chain.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * If chain isn't a COS chain(e.g. ISCSI L2) than return
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * original value.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param pdev
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param chain
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @return u32_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi */
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchiu32_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchilm_mp_get_reg_chain_from_chain(IN struct _lm_device_t *pdev,
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi IN u32_t chain)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi{
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi const u8_t cos = lm_mp_cos_from_chain(pdev, chain);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi u8_t cosx_start_offset = 0;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi if( cos >= ETH_MP_MAX_COS_SUPPORTED)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return chain;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi cosx_start_offset =
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi lm_mp_get_eth_chain_cosx_start_offset(pdev,cos);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi chain -= cosx_start_offset;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return chain;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi}
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/**
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @description
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Get COS chain from regular chain.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param pdev
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param chain
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param cos
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @return u32_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi */
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchiu8_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchilm_mp_get_cos_chain_from_reg_chain(
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi IN struct _lm_device_t *pdev,
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi INOUT u8_t chain,
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi INOUT const u8_t cos)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi{
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi u8_t cosx_start_offset = 0;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi if( cos >= ETH_MP_MAX_COS_SUPPORTED)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return chain;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi }
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi cosx_start_offset =
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi lm_mp_get_eth_chain_cosx_start_offset(pdev,cos);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi chain += cosx_start_offset;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return chain;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi}
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/**
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @description
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Get max cos chain used.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @param pdev
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * @return u32_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi */
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchiu8_t
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchilm_mp_max_cos_chain_used(
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi IN struct _lm_device_t *pdev)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi{
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi const u8_t max_num_cos = lm_dcbx_cos_max_num(pdev);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi const u8_t cosx_start_offset =
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi lm_mp_get_eth_chain_cosx_start_offset(pdev, max_num_cos -1);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi const u8_t max_chain_used = ETH_CID_COSX_END_OFFSET(pdev, cosx_start_offset);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi DbgBreakIf(FALSE == MM_DCB_MP_L2_IS_ENABLE(pdev));
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi DbgBreakIf(1 == max_num_cos);
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi return max_chain_used;
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi}