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/*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SCIC_PHY_H_
#define _SCIC_PHY_H_
/**
* This file contains all of the interface methods that can be called by an
* SCIC user on a phy (SAS or SATA) object.
*
*
*/
#include "sci_types.h"
#include "sci_status.h"
#include "intel_sata.h"
#include "intel_sas.h"
struct scic_sds_phy;
struct scic_sds_port;
/**
* struct scic_phy_properties - This structure defines the properties common to
* all phys that can be retrieved.
*
*
*/
struct scic_phy_properties {
/**
* This field specifies the port that currently contains the
* supplied phy. This field may be set to SCI_INVALID_HANDLE
* if the phy is not currently contained in a port.
*/
struct scic_sds_port *owning_port;
/**
* This field specifies the link rate at which the phy is
* currently operating.
*/
enum sci_sas_link_rate negotiated_link_rate;
/**
* This field indicates the protocols supported by the phy.
*/
struct sci_sas_identify_address_frame_protocols protocols;
/**
* This field specifies the index of the phy in relation to other
* phys within the controller. This index is zero relative.
*/
u8 index;
};
/**
* struct scic_sas_phy_properties - This structure defines the properties,
* specific to a SAS phy, that can be retrieved.
*
*
*/
struct scic_sas_phy_properties {
/**
* This field delineates the Identify Address Frame received
* from the remote end point.
*/
struct sci_sas_identify_address_frame received_iaf;
/**
* This field delineates the Phy capabilities structure received
* from the remote end point.
*/
struct sas_capabilities received_capabilities;
};
/**
* struct scic_sata_phy_properties - This structure defines the properties,
* specific to a SATA phy, that can be retrieved.
*
*
*/
struct scic_sata_phy_properties {
/**
* This field delineates the signature FIS received from the
* attached target.
*/
struct sata_fis_reg_d2h signature_fis;
/**
* This field specifies to the user if a port selector is connected
* on the specified phy.
*/
bool is_port_selector_present;
};
/**
* enum scic_phy_counter_id - This enumeration depicts the various pieces of
* optional information that can be retrieved for a specific phy.
*
*
*/
enum scic_phy_counter_id {
/**
* This PHY information field tracks the number of frames received.
*/
SCIC_PHY_COUNTER_RECEIVED_FRAME,
/**
* This PHY information field tracks the number of frames transmitted.
*/
SCIC_PHY_COUNTER_TRANSMITTED_FRAME,
/**
* This PHY information field tracks the number of DWORDs received.
*/
SCIC_PHY_COUNTER_RECEIVED_FRAME_WORD,
/**
* This PHY information field tracks the number of DWORDs transmitted.
*/
SCIC_PHY_COUNTER_TRANSMITTED_FRAME_DWORD,
/**
* This PHY information field tracks the number of times DWORD
* synchronization was lost.
*/
SCIC_PHY_COUNTER_LOSS_OF_SYNC_ERROR,
/**
* This PHY information field tracks the number of received DWORDs with
* running disparity errors.
*/
SCIC_PHY_COUNTER_RECEIVED_DISPARITY_ERROR,
/**
* This PHY information field tracks the number of received frames with a
* CRC error (not including short or truncated frames).
*/
SCIC_PHY_COUNTER_RECEIVED_FRAME_CRC_ERROR,
/**
* This PHY information field tracks the number of DONE (ACK/NAK TIMEOUT)
* primitives received.
*/
SCIC_PHY_COUNTER_RECEIVED_DONE_ACK_NAK_TIMEOUT,
/**
* This PHY information field tracks the number of DONE (ACK/NAK TIMEOUT)
* primitives transmitted.
*/
SCIC_PHY_COUNTER_TRANSMITTED_DONE_ACK_NAK_TIMEOUT,
/**
* This PHY information field tracks the number of times the inactivity
* timer for connections on the phy has been utilized.
*/
SCIC_PHY_COUNTER_INACTIVITY_TIMER_EXPIRED,
/**
* This PHY information field tracks the number of DONE (CREDIT TIMEOUT)
* primitives received.
*/
SCIC_PHY_COUNTER_RECEIVED_DONE_CREDIT_TIMEOUT,
/**
* This PHY information field tracks the number of DONE (CREDIT TIMEOUT)
* primitives transmitted.
*/
SCIC_PHY_COUNTER_TRANSMITTED_DONE_CREDIT_TIMEOUT,
/**
* This PHY information field tracks the number of CREDIT BLOCKED
* primitives received.
* @note Depending on remote device implementation, credit blocks
* may occur regularly.
*/
SCIC_PHY_COUNTER_RECEIVED_CREDIT_BLOCKED,
/**
* This PHY information field contains the number of short frames
* received. A short frame is simply a frame smaller then what is
* allowed by either the SAS or SATA specification.
*/
SCIC_PHY_COUNTER_RECEIVED_SHORT_FRAME,
/**
* This PHY information field contains the number of frames received after
* credit has been exhausted.
*/
SCIC_PHY_COUNTER_RECEIVED_FRAME_WITHOUT_CREDIT,
/**
* This PHY information field contains the number of frames received after
* a DONE has been received.
*/
SCIC_PHY_COUNTER_RECEIVED_FRAME_AFTER_DONE,
/**
* This PHY information field contains the number of times the phy
* failed to achieve DWORD synchronization during speed negotiation.
*/
SCIC_PHY_COUNTER_SN_DWORD_SYNC_ERROR
};
/**
* scic_sas_phy_get_properties() - This method will enable the user to retrieve
* information specific to a SAS phy, such as: the received identify address
* frame, received phy capabilities, etc.
* @phy: this parameter specifies the phy for which to retrieve properties.
* @properties: This parameter specifies the properties structure into which to
* copy the requested information.
*
* This method returns an indication as to whether the SAS phy properties were
* successfully retrieved. SCI_SUCCESS This value is returned if the SAS
* properties are successfully retrieved. SCI_FAILURE This value is returned if
* the SAS properties are not successfully retrieved (e.g. It's not a SAS Phy).
*/
enum sci_status scic_sas_phy_get_properties(
struct scic_sds_phy *phy,
struct scic_sas_phy_properties *properties);
/**
* scic_sata_phy_get_properties() - This method will enable the user to
* retrieve information specific to a SATA phy, such as: the received
* signature FIS, if a port selector is present, etc.
* @phy: this parameter specifies the phy for which to retrieve properties.
* @properties: This parameter specifies the properties structure into which to
* copy the requested information.
*
* This method returns an indication as to whether the SATA phy properties were
* successfully retrieved. SCI_SUCCESS This value is returned if the SATA
* properties are successfully retrieved. SCI_FAILURE This value is returned if
* the SATA properties are not successfully retrieved (e.g. It's not a SATA
* Phy).
*/
enum sci_status scic_sata_phy_get_properties(
struct scic_sds_phy *phy,
struct scic_sata_phy_properties *properties);
#endif /* _SCIC_PHY_H_ */
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