isci: uplevel phy infrastructure (d35bc1bd) · Commits · e / devices / android_kernel_oneplus_sm8150

drivers/scsi/isci/Makefile

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		@@ -12,4 +12,3 @@ isci-objs := init.o phy.o request.o sata.o \
		smp_request.o \
		core/scic_sds_port.o \
		core/scic_sds_port_configuration_agent.o \
		core/scic_sds_phy.o \

drivers/scsi/isci/core/scic_phy.h

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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 <scsi/sas.h>
		#include <scsi/libsas.h>

		struct scic_sds_phy;
		struct scic_sds_port;


		enum sas_linkrate sci_phy_linkrate(struct scic_sds_phy *sci_phy);

		struct scic_phy_cap {
		union {
		struct {
		/*
		* The SAS specification indicates the start bit shall
		* always be set to
		* 1. This implementation will have the start bit set
		* to 0 if the PHY CAPABILITIES were either not
		* received or speed negotiation failed.
		*/
		u8 start:1;
		u8 tx_ssc_type:1;
		u8 res1:2;
		u8 req_logical_linkrate:4;

		u32 gen1_no_ssc:1;
		u32 gen1_ssc:1;
		u32 gen2_no_ssc:1;
		u32 gen2_ssc:1;
		u32 gen3_no_ssc:1;
		u32 gen3_ssc:1;
		u32 res2:17;
		u32 parity:1;
		};
		u32 all;
		};
		} __packed;

		/* this data structure reflects the link layer transmit identification reg */
		struct scic_phy_proto {
		union {
		struct {
		u16 _r_a:1;
		u16 smp_iport:1;
		u16 stp_iport:1;
		u16 ssp_iport:1;
		u16 _r_b:4;
		u16 _r_c:1;
		u16 smp_tport:1;
		u16 stp_tport:1;
		u16 ssp_tport:1;
		u16 _r_d:4;
		};
		u16 all;
		};
		} __packed;


		/**
		* 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 NULL
		* 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 sas_linkrate negotiated_link_rate;

		/**
		* 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 sas_identify_frame rcvd_iaf;

		/**
		* This field delineates the Phy capabilities structure received
		* from the remote end point.
		*/
		struct scic_phy_cap rcvd_cap;

		};

		/**
		* 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 dev_to_host_fis 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
		};

		#endif /* _SCIC_PHY_H_ */

drivers/scsi/isci/core/scic_port.h

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		@@ -58,7 +58,7 @@

		#include "isci.h"
		#include "sas.h"
		#include "scic_phy.h"
		#include "phy.h"

		struct scic_sds_port;