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| Current File : //sys/dev/isci/scil/scic_phy.h |
/*-
* 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.
*
* 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.
*
* $FreeBSD: release/9.1.0/sys/dev/isci/scil/scic_phy.h 231689 2012-02-14 15:58:49Z jimharris $
*/
#ifndef _SCIC_PHY_H_
#define _SCIC_PHY_H_
/**
* @file
*
* @brief This file contains all of the interface methods that can be called
* by an SCIC user on a phy (SAS or SATA) object.
*/
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#include <dev/isci/scil/sci_types.h>
#include <dev/isci/scil/sci_status.h>
#include <dev/isci/scil/intel_sata.h>
#include <dev/isci/scil/intel_sas.h>
/**
* @struct SCIC_PHY_PROPERTIES
* @brief This structure defines the properties common to all phys
* that can be retrieved.
*/
typedef 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.
*/
SCI_PORT_HANDLE_T owning_port;
/**
* This field specifies the maximum link rate for which this phy
* will negotiate.
*/
SCI_SAS_LINK_RATE max_link_rate;
/**
* This field specifies the link rate at which the phy is
* currently operating.
*/
SCI_SAS_LINK_RATE negotiated_link_rate;
/**
* This field indicates the identify address frame that will be
* transmitted to the connected phy.
*/
SCI_SAS_IDENTIFY_ADDRESS_FRAME_T transmit_iaf;
/**
* This field specifies the index of the phy in relation to other
* phys within the controller. This index is zero relative.
*/
U8 index;
} SCIC_PHY_PROPERTIES_T;
/**
* @struct SCIC_SAS_PHY_PROPERTIES
* @brief This structure defines the properties, specific to a
* SAS phy, that can be retrieved.
*/
typedef struct SCIC_SAS_PHY_PROPERTIES
{
/**
* This field delineates the Identify Address Frame received
* from the remote end point.
*/
SCI_SAS_IDENTIFY_ADDRESS_FRAME_T received_iaf;
/**
* This field delineates the Phy capabilities structure received
* from the remote end point.
*/
SAS_CAPABILITIES_T received_capabilities;
} SCIC_SAS_PHY_PROPERTIES_T;
/**
* @struct SCIC_SATA_PHY_PROPERTIES
* @brief This structure defines the properties, specific to a
* SATA phy, that can be retrieved.
*/
typedef struct SCIC_SATA_PHY_PROPERTIES
{
/**
* This field delineates the signature FIS received from the
* attached target.
*/
SATA_FIS_REG_D2H_T signature_fis;
/**
* This field specifies to the user if a port selector is connected
* on the specified phy.
*/
BOOL is_port_selector_present;
} SCIC_SATA_PHY_PROPERTIES_T;
/**
* @enum SCIC_PHY_COUNTER_ID
* @brief This enumeration depicts the various pieces of optional
* information that can be retrieved for a specific phy.
*/
typedef 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_DWORD,
/**
* 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_PHY_COUNTER_ID_T;
/**
* @brief This method will enable the user to retrieve information
* common to all phys, such as: the negotiated link rate,
* the phy id, etc.
*
* @param[in] phy This parameter specifies the phy for which to retrieve
* the properties.
* @param[out] properties This parameter specifies the properties
* structure into which to copy the requested information.
*
* @return Indicate if the user specified a valid phy.
* @retval SCI_SUCCESS This value is returned if the specified phy was valid.
* @retval SCI_FAILURE_INVALID_PHY This value is returned if the specified phy
* is not valid. When this value is returned, no data is copied to the
* properties output parameter.
*/
SCI_STATUS scic_phy_get_properties(
SCI_PHY_HANDLE_T phy,
SCIC_PHY_PROPERTIES_T * properties
);
/**
* @brief 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.
*
* @param[in] phy this parameter specifies the phy for which to
* retrieve properties.
* @param[out] properties This parameter specifies the properties
* structure into which to copy the requested information.
*
* @return This method returns an indication as to whether the SAS
* phy properties were successfully retrieved.
* @retval SCI_SUCCESS This value is returned if the SAS properties
* are successfully retrieved.
* @retval SCI_FAILURE This value is returned if the SAS properties
* are not successfully retrieved (e.g. It's not a SAS Phy).
*/
SCI_STATUS scic_sas_phy_get_properties(
SCI_PHY_HANDLE_T phy,
SCIC_SAS_PHY_PROPERTIES_T * properties
);
/**
* @brief This method will enable the user to retrieve information
* specific to a SATA phy, such as: the recieved signature
* FIS, if a port selector is present, etc.
*
* @param[in] phy this parameter specifies the phy for which to
* retrieve properties.
* @param[out] properties This parameter specifies the properties
* structure into which to copy the requested information.
*
* @return This method returns an indication as to whether the SATA
* phy properties were successfully retrieved.
* @retval SCI_SUCCESS This value is returned if the SATA properties
* are successfully retrieved.
* @retval SCI_FAILURE This value is returned if the SATA properties
* are not successfully retrieved (e.g. It's not a SATA Phy).
*/
SCI_STATUS scic_sata_phy_get_properties(
SCI_PHY_HANDLE_T phy,
SCIC_SATA_PHY_PROPERTIES_T * properties
);
/**
* @brief This method allows the SCIC user to instruct the SCIC
* implementation to send the SATA port selection signal.
*
* @param[in] phy this parameter specifies the phy for which to send
* the port selection signal.
*
* @return An indication of whether the port selection signal was
* successfully executed.
* @retval SCI_SUCCESS This value is returned if the port selection signal
* was successfully transmitted.
*/
SCI_STATUS scic_sata_phy_send_port_selection_signal(
SCI_PHY_HANDLE_T phy
);
/**
* @brief This method requests the SCI implementation to begin tracking
* information specified by the supplied parameters.
*
* @param[in] phy this parameter specifies the phy for which to enable
* the information type.
* @param[in] counter_id this parameter specifies the information
* type to be enabled.
*
* @return Indicate if enablement of the information type was successful.
* @retval SCI_SUCCESS This value is returned if the information type was
* successfully enabled.
* @retval SCI_FAILURE_UNSUPPORTED_INFORMATION_FIELD This value is returned
* if the supplied information type is not supported.
*/
SCI_STATUS scic_phy_enable_counter(
SCI_PHY_HANDLE_T phy,
SCIC_PHY_COUNTER_ID_T counter_id
);
/**
* @brief This method requests the SCI implementation to stop tracking
* information specified by the supplied parameters.
*
* @param[in] phy this parameter specifies the phy for which to disable
* the information type.
* @param[in] counter_id this parameter specifies the information
* type to be disabled.
*
* @return Indicate if disablement of the information type was successful.
* @retval SCI_SUCCESS This value is returned if the information type was
* successfully disabled.
* @retval SCI_FAILURE_UNSUPPORTED_INFORMATION_FIELD This value is returned
* if the supplied information type is not supported.
*/
SCI_STATUS scic_phy_disable_counter(
SCI_PHY_HANDLE_T phy,
SCIC_PHY_COUNTER_ID_T counter_id
);
/**
* @brief This method requests the SCI implementation to retrieve
* tracking information specified by the supplied parameters.
*
* @param[in] phy this parameter specifies the phy for which to retrieve
* the information type.
* @param[in] counter_id this parameter specifies the information
* type to be retrieved.
* @param[out] data this parameter is a 32-bit pointer to a location
* where the data being retrieved is to be placed.
*
* @return Indicate if retrieval of the information type was successful.
* @retval SCI_SUCCESS This value is returned if the information type was
* successfully retrieved.
* @retval SCI_FAILURE_UNSUPPORTED_INFORMATION_FIELD This value is returned
* if the supplied information type is not supported.
*/
SCI_STATUS scic_phy_get_counter(
SCI_PHY_HANDLE_T phy,
SCIC_PHY_COUNTER_ID_T counter_id,
U32 * data
);
/**
* @brief This method requests the SCI implementation to clear (reset)
* tracking information specified by the supplied parameters.
*
* @param[in] phy this parameter specifies the phy for which to clear
* the information type.
* @param[in] counter_id this parameter specifies the information
* type to be cleared.
*
* @return Indicate if clearing of the information type was successful.
* @retval SCI_SUCCESS This value is returned if the information type was
* successfully cleared.
* @retval SCI_FAILURE_UNSUPPORTED_INFORMATION_FIELD This value is returned
* if the supplied information type is not supported.
*/
SCI_STATUS scic_phy_clear_counter(
SCI_PHY_HANDLE_T phy,
SCIC_PHY_COUNTER_ID_T counter_id
);
/**
* @brief This method will attempt to stop the phy object.
*
* @param[in] this_phy
*
* @return SCI_STATUS
* @retval SCI_SUCCESS if the phy is going to stop
* SCI_INVALID_STATE if the phy is not in a valid state
* to stop
*/
SCI_STATUS scic_phy_stop(
SCI_PHY_HANDLE_T phy
);
/**
* @brief This method will attempt to start the phy object. This
* request is only valid when the phy is in the stopped
* state
*
* @param[in] this_phy
*
* @return SCI_STATUS
*/
SCI_STATUS scic_phy_start(
SCI_PHY_HANDLE_T phy
);
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // _SCIC_PHY_H_