2011-07-03 07:56:22 +02:00
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/*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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2011-05-09 00:49:15 +02:00
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#ifndef _SCI_HOST_H_
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2011-07-03 07:56:22 +02:00
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#define _SCI_HOST_H_
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2011-05-09 02:34:44 +02:00
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#include "scic_config_parameters.h"
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2011-07-03 07:56:22 +02:00
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#include "remote_device.h"
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2011-05-09 00:49:15 +02:00
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#include "phy.h"
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2011-05-09 02:34:44 +02:00
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#include "pool.h"
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#include "sci_base_state_machine.h"
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#include "remote_node_table.h"
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#include "scu_registers.h"
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#include "scu_unsolicited_frame.h"
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#include "scic_sds_unsolicited_frame_control.h"
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#include "scic_sds_port_configuration_agent.h"
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struct scic_sds_request;
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struct scu_task_context;
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/**
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* struct scic_power_control -
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*
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* This structure defines the fields for managing power control for direct
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* attached disk devices.
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*/
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struct scic_power_control {
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/**
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* This field is set when the power control timer is running and cleared when
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* it is not.
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*/
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bool timer_started;
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/**
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* This field is the handle to the driver timer object. This timer is used to
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* control when the directed attached disks can consume power.
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*/
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void *timer;
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/**
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* This field is used to keep track of how many phys are put into the
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* requesters field.
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*/
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u8 phys_waiting;
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/**
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* This field is used to keep track of how many phys have been granted to consume power
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*/
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u8 phys_granted_power;
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/**
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* This field is an array of phys that we are waiting on. The phys are direct
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* mapped into requesters via struct scic_sds_phy.phy_index
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*/
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struct scic_sds_phy *requesters[SCI_MAX_PHYS];
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};
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/**
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* struct scic_sds_controller -
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*
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* This structure represents the SCU controller object.
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*/
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struct scic_sds_controller {
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/**
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* This field contains the information for the base controller state
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* machine.
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*/
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struct sci_base_state_machine state_machine;
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/**
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* This field is the driver timer object handler used to time the controller
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* object start and stop requests.
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*/
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void *timeout_timer;
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/**
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* This field contains the user parameters to be utilized for this
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* core controller object.
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*/
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union scic_user_parameters user_parameters;
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/**
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* This field contains the OEM parameters to be utilized for this
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* core controller object.
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*/
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union scic_oem_parameters oem_parameters;
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/**
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* This field contains the port configuration agent for this controller.
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*/
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struct scic_sds_port_configuration_agent port_agent;
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/**
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* This field is the array of device objects that are currently constructed
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* for this controller object. This table is used as a fast lookup of device
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* objects that need to handle device completion notifications from the
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* hardware. The table is RNi based.
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*/
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struct scic_sds_remote_device *device_table[SCI_MAX_REMOTE_DEVICES];
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/**
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* This field is the array of IO request objects that are currently active for
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* this controller object. This table is used as a fast lookup of the io
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* request object that need to handle completion queue notifications. The
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* table is TCi based.
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*/
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struct scic_sds_request *io_request_table[SCI_MAX_IO_REQUESTS];
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/**
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* This field is the free RNi data structure
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*/
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struct scic_remote_node_table available_remote_nodes;
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/**
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* This field is the TCi pool used to manage the task context index.
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*/
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SCI_POOL_CREATE(tci_pool, u16, SCI_MAX_IO_REQUESTS);
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/**
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* This filed is the struct scic_power_control data used to controll when direct
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* attached devices can consume power.
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*/
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struct scic_power_control power_control;
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/**
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* This field is the array of sequence values for the IO Tag fields. Even
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* though only 4 bits of the field is used for the sequence the sequence is 16
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* bits in size so the sequence can be bitwise or'd with the TCi to build the
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* IO Tag value.
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*/
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u16 io_request_sequence[SCI_MAX_IO_REQUESTS];
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/**
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* This field in the array of sequence values for the RNi. These are used
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* to control io request build to io request start operations. The sequence
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* value is recorded into an io request when it is built and is checked on
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* the io request start operation to make sure that there was not a device
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* hot plug between the build and start operation.
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*/
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u8 remote_device_sequence[SCI_MAX_REMOTE_DEVICES];
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/**
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* This field is a pointer to the memory allocated by the driver for the task
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* context table. This data is shared between the hardware and software.
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*/
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struct scu_task_context *task_context_table;
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/**
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* This field is a pointer to the memory allocated by the driver for the
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* remote node context table. This table is shared between the hardware and
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* software.
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*/
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union scu_remote_node_context *remote_node_context_table;
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/**
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* This field is a pointer to the completion queue. This memory is
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* written to by the hardware and read by the software.
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*/
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u32 *completion_queue;
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/**
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* This field is the software copy of the completion queue get pointer. The
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* controller object writes this value to the hardware after processing the
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* completion entries.
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*/
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u32 completion_queue_get;
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/**
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* This field is the minimum of the number of hardware supported port entries
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* and the software requested port entries.
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*/
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u32 logical_port_entries;
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/**
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* This field is the minimum number of hardware supported completion queue
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* entries and the software requested completion queue entries.
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*/
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u32 completion_queue_entries;
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/**
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* This field is the minimum number of hardware supported event entries and
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* the software requested event entries.
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*/
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u32 completion_event_entries;
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/**
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* This field is the minimum number of devices supported by the hardware and
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* the number of devices requested by the software.
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*/
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u32 remote_node_entries;
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/**
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* This field is the minimum number of IO requests supported by the hardware
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* and the number of IO requests requested by the software.
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*/
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u32 task_context_entries;
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/**
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* This object contains all of the unsolicited frame specific
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* data utilized by the core controller.
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*/
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struct scic_sds_unsolicited_frame_control uf_control;
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/* Phy Startup Data */
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/**
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* This field is the driver timer handle for controller phy request startup.
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* On controller start the controller will start each PHY individually in
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* order of phy index.
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*/
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void *phy_startup_timer;
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/**
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* This field is set when the phy_startup_timer is running and is cleared when
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* the phy_startup_timer is stopped.
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*/
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bool phy_startup_timer_pending;
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/**
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* This field is the index of the next phy start. It is initialized to 0 and
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* increments for each phy index that is started.
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*/
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u32 next_phy_to_start;
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/**
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* This field controlls the invalid link up notifications to the SCI_USER. If
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* an invalid_link_up notification is reported a bit for the PHY index is set
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* so further notifications are not made. Once the PHY object reports link up
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* and is made part of a port then this bit for the PHY index is cleared.
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*/
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u8 invalid_phy_mask;
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/*
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* This field saves the current interrupt coalescing number of the controller.
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*/
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u16 interrupt_coalesce_number;
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/*
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* This field saves the current interrupt coalescing timeout value in microseconds.
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*/
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u32 interrupt_coalesce_timeout;
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/**
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* This field is a pointer to the memory mapped register space for the
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* struct smu_registers.
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*/
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struct smu_registers __iomem *smu_registers;
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/**
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* This field is a pointer to the memory mapped register space for the
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* struct scu_registers.
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*/
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struct scu_registers __iomem *scu_registers;
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};
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2011-07-03 07:56:22 +02:00
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struct isci_host {
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2011-05-04 09:58:16 +02:00
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struct scic_sds_controller sci;
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2011-07-03 07:56:22 +02:00
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union scic_oem_parameters oem_parameters;
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int id; /* unique within a given pci device */
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2011-03-02 20:49:26 +01:00
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struct list_head timers;
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2011-07-03 07:56:22 +02:00
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void *core_ctrl_memory;
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struct dma_pool *dma_pool;
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struct isci_phy phys[SCI_MAX_PHYS];
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2011-05-07 19:11:43 +02:00
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struct isci_port ports[SCI_MAX_PORTS + 1]; /* includes dummy port */
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2011-07-03 07:56:22 +02:00
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struct sas_ha_struct sas_ha;
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int can_queue;
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spinlock_t queue_lock;
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spinlock_t state_lock;
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struct pci_dev *pdev;
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enum isci_status status;
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2011-02-18 18:25:07 +01:00
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#define IHOST_START_PENDING 0
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#define IHOST_STOP_PENDING 1
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unsigned long flags;
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wait_queue_head_t eventq;
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2011-07-03 07:56:22 +02:00
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struct Scsi_Host *shost;
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struct tasklet_struct completion_tasklet;
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struct list_head requests_to_complete;
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2011-03-04 23:06:40 +01:00
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struct list_head requests_to_errorback;
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2011-07-03 07:56:22 +02:00
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spinlock_t scic_lock;
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2011-03-04 02:59:32 +01:00
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2011-04-22 03:14:45 +02:00
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struct isci_remote_device devices[SCI_MAX_REMOTE_DEVICES];
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2011-07-03 07:56:22 +02:00
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};
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2011-05-09 02:34:44 +02:00
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/**
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* enum scic_sds_controller_states - This enumeration depicts all the states
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* for the common controller state machine.
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*/
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enum scic_sds_controller_states {
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/**
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* Simply the initial state for the base controller state machine.
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*/
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SCI_BASE_CONTROLLER_STATE_INITIAL = 0,
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/**
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* This state indicates that the controller is reset. The memory for
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* the controller is in it's initial state, but the controller requires
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* initialization.
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* This state is entered from the INITIAL state.
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* This state is entered from the RESETTING state.
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*/
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SCI_BASE_CONTROLLER_STATE_RESET,
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/**
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* This state is typically an action state that indicates the controller
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* is in the process of initialization. In this state no new IO operations
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* are permitted.
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* This state is entered from the RESET state.
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*/
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SCI_BASE_CONTROLLER_STATE_INITIALIZING,
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/**
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* This state indicates that the controller has been successfully
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* initialized. In this state no new IO operations are permitted.
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* This state is entered from the INITIALIZING state.
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*/
|
|
|
|
SCI_BASE_CONTROLLER_STATE_INITIALIZED,
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This state indicates the the controller is in the process of becoming
|
|
|
|
* ready (i.e. starting). In this state no new IO operations are permitted.
|
|
|
|
* This state is entered from the INITIALIZED state.
|
|
|
|
*/
|
|
|
|
SCI_BASE_CONTROLLER_STATE_STARTING,
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This state indicates the controller is now ready. Thus, the user
|
|
|
|
* is able to perform IO operations on the controller.
|
|
|
|
* This state is entered from the STARTING state.
|
|
|
|
*/
|
|
|
|
SCI_BASE_CONTROLLER_STATE_READY,
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This state is typically an action state that indicates the controller
|
|
|
|
* is in the process of resetting. Thus, the user is unable to perform
|
|
|
|
* IO operations on the controller. A reset is considered destructive in
|
|
|
|
* most cases.
|
|
|
|
* This state is entered from the READY state.
|
|
|
|
* This state is entered from the FAILED state.
|
|
|
|
* This state is entered from the STOPPED state.
|
|
|
|
*/
|
|
|
|
SCI_BASE_CONTROLLER_STATE_RESETTING,
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This state indicates that the controller is in the process of stopping.
|
|
|
|
* In this state no new IO operations are permitted, but existing IO
|
|
|
|
* operations are allowed to complete.
|
|
|
|
* This state is entered from the READY state.
|
|
|
|
*/
|
|
|
|
SCI_BASE_CONTROLLER_STATE_STOPPING,
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This state indicates that the controller has successfully been stopped.
|
|
|
|
* In this state no new IO operations are permitted.
|
|
|
|
* This state is entered from the STOPPING state.
|
|
|
|
*/
|
|
|
|
SCI_BASE_CONTROLLER_STATE_STOPPED,
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This state indicates that the controller could not successfully be
|
|
|
|
* initialized. In this state no new IO operations are permitted.
|
|
|
|
* This state is entered from the INITIALIZING state.
|
|
|
|
* This state is entered from the STARTING state.
|
|
|
|
* This state is entered from the STOPPING state.
|
|
|
|
* This state is entered from the RESETTING state.
|
|
|
|
*/
|
|
|
|
SCI_BASE_CONTROLLER_STATE_FAILED,
|
|
|
|
|
|
|
|
SCI_BASE_CONTROLLER_MAX_STATES
|
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
2011-07-03 07:56:22 +02:00
|
|
|
/**
|
|
|
|
* struct isci_pci_info - This class represents the pci function containing the
|
|
|
|
* controllers. Depending on PCI SKU, there could be up to 2 controllers in
|
|
|
|
* the PCI function.
|
|
|
|
*/
|
|
|
|
#define SCI_MAX_MSIX_INT (SCI_NUM_MSI_X_INT*SCI_MAX_CONTROLLERS)
|
|
|
|
|
|
|
|
struct isci_pci_info {
|
|
|
|
struct msix_entry msix_entries[SCI_MAX_MSIX_INT];
|
2011-03-08 01:02:25 +01:00
|
|
|
struct isci_host *hosts[SCI_MAX_CONTROLLERS];
|
2011-03-08 18:52:49 +01:00
|
|
|
struct isci_orom *orom;
|
2011-07-03 07:56:22 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
static inline struct isci_pci_info *to_pci_info(struct pci_dev *pdev)
|
|
|
|
{
|
|
|
|
return pci_get_drvdata(pdev);
|
|
|
|
}
|
|
|
|
|
2011-03-08 01:02:25 +01:00
|
|
|
#define for_each_isci_host(id, ihost, pdev) \
|
|
|
|
for (id = 0, ihost = to_pci_info(pdev)->hosts[id]; \
|
|
|
|
id < ARRAY_SIZE(to_pci_info(pdev)->hosts) && ihost; \
|
|
|
|
ihost = to_pci_info(pdev)->hosts[++id])
|
2011-07-03 07:56:22 +02:00
|
|
|
|
2011-05-09 02:34:44 +02:00
|
|
|
static inline enum isci_status isci_host_get_state(struct isci_host *isci_host)
|
2011-07-03 07:56:22 +02:00
|
|
|
{
|
|
|
|
return isci_host->status;
|
|
|
|
}
|
|
|
|
|
2011-05-09 02:34:44 +02:00
|
|
|
static inline void isci_host_change_state(struct isci_host *isci_host,
|
|
|
|
enum isci_status status)
|
2011-07-03 07:56:22 +02:00
|
|
|
{
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
dev_dbg(&isci_host->pdev->dev,
|
|
|
|
"%s: isci_host = %p, state = 0x%x",
|
|
|
|
__func__,
|
|
|
|
isci_host,
|
|
|
|
status);
|
|
|
|
spin_lock_irqsave(&isci_host->state_lock, flags);
|
|
|
|
isci_host->status = status;
|
|
|
|
spin_unlock_irqrestore(&isci_host->state_lock, flags);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
2011-05-09 02:34:44 +02:00
|
|
|
static inline int isci_host_can_queue(struct isci_host *isci_host, int num)
|
2011-07-03 07:56:22 +02:00
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&isci_host->queue_lock, flags);
|
|
|
|
if ((isci_host->can_queue - num) < 0) {
|
|
|
|
dev_dbg(&isci_host->pdev->dev,
|
|
|
|
"%s: isci_host->can_queue = %d\n",
|
|
|
|
__func__,
|
|
|
|
isci_host->can_queue);
|
|
|
|
ret = -SAS_QUEUE_FULL;
|
|
|
|
|
|
|
|
} else
|
|
|
|
isci_host->can_queue -= num;
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&isci_host->queue_lock, flags);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2011-05-09 02:34:44 +02:00
|
|
|
static inline void isci_host_can_dequeue(struct isci_host *isci_host, int num)
|
2011-07-03 07:56:22 +02:00
|
|
|
{
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&isci_host->queue_lock, flags);
|
|
|
|
isci_host->can_queue += num;
|
|
|
|
spin_unlock_irqrestore(&isci_host->queue_lock, flags);
|
|
|
|
}
|
|
|
|
|
2011-02-18 18:25:07 +01:00
|
|
|
static inline void wait_for_start(struct isci_host *ihost)
|
|
|
|
{
|
|
|
|
wait_event(ihost->eventq, !test_bit(IHOST_START_PENDING, &ihost->flags));
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void wait_for_stop(struct isci_host *ihost)
|
|
|
|
{
|
|
|
|
wait_event(ihost->eventq, !test_bit(IHOST_STOP_PENDING, &ihost->flags));
|
|
|
|
}
|
|
|
|
|
2011-03-04 21:10:29 +01:00
|
|
|
static inline void wait_for_device_start(struct isci_host *ihost, struct isci_remote_device *idev)
|
|
|
|
{
|
|
|
|
wait_event(ihost->eventq, !test_bit(IDEV_START_PENDING, &idev->flags));
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void wait_for_device_stop(struct isci_host *ihost, struct isci_remote_device *idev)
|
|
|
|
{
|
2011-03-04 02:59:32 +01:00
|
|
|
wait_event(ihost->eventq, !test_bit(IDEV_STOP_PENDING, &idev->flags));
|
2011-03-04 21:10:29 +01:00
|
|
|
}
|
2011-02-18 18:25:07 +01:00
|
|
|
|
2011-03-31 22:10:44 +02:00
|
|
|
static inline struct isci_host *dev_to_ihost(struct domain_device *dev)
|
|
|
|
{
|
|
|
|
return dev->port->ha->lldd_ha;
|
|
|
|
}
|
2011-07-03 07:56:22 +02:00
|
|
|
|
2011-05-04 09:58:16 +02:00
|
|
|
static inline struct isci_host *scic_to_ihost(struct scic_sds_controller *scic)
|
|
|
|
{
|
|
|
|
/* XXX delete after merging scic_sds_contoller and isci_host */
|
|
|
|
struct isci_host *ihost = container_of(scic, typeof(*ihost), sci);
|
|
|
|
|
|
|
|
return ihost;
|
|
|
|
}
|
|
|
|
|
2011-07-03 07:56:22 +02:00
|
|
|
/**
|
2011-05-09 02:34:44 +02:00
|
|
|
* INCREMENT_QUEUE_GET() -
|
2011-07-03 07:56:22 +02:00
|
|
|
*
|
2011-05-09 02:34:44 +02:00
|
|
|
* This macro will increment the specified index to and if the index wraps to 0
|
|
|
|
* it will toggel the cycle bit.
|
2011-07-03 07:56:22 +02:00
|
|
|
*/
|
2011-05-09 02:34:44 +02:00
|
|
|
#define INCREMENT_QUEUE_GET(index, cycle, entry_count, bit_toggle) \
|
|
|
|
{ \
|
|
|
|
if ((index) + 1 == entry_count) { \
|
|
|
|
(index) = 0; \
|
|
|
|
(cycle) = (cycle) ^ (bit_toggle); \
|
|
|
|
} else { \
|
|
|
|
index = index + 1; \
|
|
|
|
} \
|
|
|
|
}
|
2011-07-03 07:56:22 +02:00
|
|
|
|
2011-05-09 02:34:44 +02:00
|
|
|
/**
|
|
|
|
* scic_sds_controller_get_port_configuration_agent() -
|
|
|
|
*
|
|
|
|
* This is a helper macro to get the port configuration agent from the
|
|
|
|
* controller object.
|
|
|
|
*/
|
|
|
|
#define scic_sds_controller_get_port_configuration_agent(controller) \
|
|
|
|
(&(controller)->port_agent)
|
2011-07-03 07:56:22 +02:00
|
|
|
|
|
|
|
/**
|
2011-05-09 02:34:44 +02:00
|
|
|
* scic_sds_controller_get_protocol_engine_group() -
|
2011-07-03 07:56:22 +02:00
|
|
|
*
|
2011-05-09 02:34:44 +02:00
|
|
|
* This macro returns the protocol engine group for this controller object.
|
|
|
|
* Presently we only support protocol engine group 0 so just return that
|
2011-07-03 07:56:22 +02:00
|
|
|
*/
|
2011-05-09 02:34:44 +02:00
|
|
|
#define scic_sds_controller_get_protocol_engine_group(controller) 0
|
2011-07-03 07:56:22 +02:00
|
|
|
|
|
|
|
/**
|
2011-05-09 02:34:44 +02:00
|
|
|
* scic_sds_io_tag_construct() -
|
2011-07-03 07:56:22 +02:00
|
|
|
*
|
2011-05-09 02:34:44 +02:00
|
|
|
* This macro constructs an IO tag from the sequence and index values.
|
2011-07-03 07:56:22 +02:00
|
|
|
*/
|
2011-05-09 02:34:44 +02:00
|
|
|
#define scic_sds_io_tag_construct(sequence, task_index) \
|
|
|
|
((sequence) << 12 | (task_index))
|
2011-07-03 07:56:22 +02:00
|
|
|
|
2011-05-09 02:34:44 +02:00
|
|
|
/**
|
|
|
|
* scic_sds_io_tag_get_sequence() -
|
|
|
|
*
|
|
|
|
* This macro returns the IO sequence from the IO tag value.
|
|
|
|
*/
|
|
|
|
#define scic_sds_io_tag_get_sequence(io_tag) \
|
|
|
|
(((io_tag) & 0xF000) >> 12)
|
|
|
|
|
|
|
|
/**
|
|
|
|
* scic_sds_io_tag_get_index() -
|
|
|
|
*
|
|
|
|
* This macro returns the TCi from the io tag value
|
|
|
|
*/
|
|
|
|
#define scic_sds_io_tag_get_index(io_tag) \
|
|
|
|
((io_tag) & 0x0FFF)
|
|
|
|
|
|
|
|
/**
|
|
|
|
* scic_sds_io_sequence_increment() -
|
|
|
|
*
|
|
|
|
* This is a helper macro to increment the io sequence count. We may find in
|
|
|
|
* the future that it will be faster to store the sequence count in such a way
|
|
|
|
* as we dont perform the shift operation to build io tag values so therefore
|
|
|
|
* need a way to incrment them correctly
|
|
|
|
*/
|
|
|
|
#define scic_sds_io_sequence_increment(value) \
|
|
|
|
((value) = (((value) + 1) & 0x000F))
|
|
|
|
|
|
|
|
/* expander attached sata devices require 3 rnc slots */
|
|
|
|
static inline int scic_sds_remote_device_node_count(struct scic_sds_remote_device *sci_dev)
|
|
|
|
{
|
|
|
|
struct domain_device *dev = sci_dev_to_domain(sci_dev);
|
|
|
|
|
|
|
|
if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) &&
|
|
|
|
!sci_dev->is_direct_attached)
|
|
|
|
return SCU_STP_REMOTE_NODE_COUNT;
|
|
|
|
return SCU_SSP_REMOTE_NODE_COUNT;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* scic_sds_controller_set_invalid_phy() -
|
|
|
|
*
|
|
|
|
* This macro will set the bit in the invalid phy mask for this controller
|
|
|
|
* object. This is used to control messages reported for invalid link up
|
|
|
|
* notifications.
|
|
|
|
*/
|
|
|
|
#define scic_sds_controller_set_invalid_phy(controller, phy) \
|
|
|
|
((controller)->invalid_phy_mask |= (1 << (phy)->phy_index))
|
|
|
|
|
|
|
|
/**
|
|
|
|
* scic_sds_controller_clear_invalid_phy() -
|
|
|
|
*
|
|
|
|
* This macro will clear the bit in the invalid phy mask for this controller
|
|
|
|
* object. This is used to control messages reported for invalid link up
|
|
|
|
* notifications.
|
|
|
|
*/
|
|
|
|
#define scic_sds_controller_clear_invalid_phy(controller, phy) \
|
|
|
|
((controller)->invalid_phy_mask &= ~(1 << (phy)->phy_index))
|
|
|
|
|
|
|
|
static inline struct device *scic_to_dev(struct scic_sds_controller *scic)
|
|
|
|
{
|
|
|
|
return &scic_to_ihost(scic)->pdev->dev;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct device *sciphy_to_dev(struct scic_sds_phy *sci_phy)
|
|
|
|
{
|
|
|
|
struct isci_phy *iphy = sci_phy_to_iphy(sci_phy);
|
|
|
|
|
|
|
|
if (!iphy || !iphy->isci_port || !iphy->isci_port->isci_host)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
return &iphy->isci_port->isci_host->pdev->dev;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct device *sciport_to_dev(struct scic_sds_port *sci_port)
|
|
|
|
{
|
|
|
|
struct isci_port *iport = sci_port_to_iport(sci_port);
|
|
|
|
|
|
|
|
if (!iport || !iport->isci_host)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
return &iport->isci_host->pdev->dev;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct device *scirdev_to_dev(struct scic_sds_remote_device *sci_dev)
|
|
|
|
{
|
|
|
|
struct isci_remote_device *idev =
|
|
|
|
container_of(sci_dev, typeof(*idev), sci);
|
|
|
|
|
|
|
|
if (!idev || !idev->isci_port || !idev->isci_port->isci_host)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
return &idev->isci_port->isci_host->pdev->dev;
|
|
|
|
}
|
|
|
|
|
|
|
|
enum {
|
|
|
|
ISCI_SI_REVA0,
|
|
|
|
ISCI_SI_REVA2,
|
|
|
|
ISCI_SI_REVB0,
|
|
|
|
};
|
|
|
|
|
|
|
|
extern int isci_si_rev;
|
|
|
|
|
|
|
|
static inline bool is_a0(void)
|
|
|
|
{
|
|
|
|
return isci_si_rev == ISCI_SI_REVA0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline bool is_a2(void)
|
|
|
|
{
|
|
|
|
return isci_si_rev == ISCI_SI_REVA2;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline bool is_b0(void)
|
|
|
|
{
|
|
|
|
return isci_si_rev > ISCI_SI_REVA2;
|
|
|
|
}
|
|
|
|
|
|
|
|
void scic_sds_controller_post_request(struct scic_sds_controller *scic,
|
|
|
|
u32 request);
|
|
|
|
void scic_sds_controller_release_frame(struct scic_sds_controller *scic,
|
|
|
|
u32 frame_index);
|
|
|
|
void scic_sds_controller_copy_sata_response(void *response_buffer,
|
|
|
|
void *frame_header,
|
|
|
|
void *frame_buffer);
|
|
|
|
enum sci_status scic_sds_controller_allocate_remote_node_context(struct scic_sds_controller *scic,
|
|
|
|
struct scic_sds_remote_device *sci_dev,
|
|
|
|
u16 *node_id);
|
|
|
|
void scic_sds_controller_free_remote_node_context(
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struct scic_sds_controller *scic,
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struct scic_sds_remote_device *sci_dev,
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u16 node_id);
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union scu_remote_node_context *scic_sds_controller_get_remote_node_context_buffer(
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struct scic_sds_controller *scic,
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u16 node_id);
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struct scic_sds_request *scic_request_by_tag(struct scic_sds_controller *scic,
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u16 io_tag);
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struct scu_task_context *scic_sds_controller_get_task_context_buffer(
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struct scic_sds_controller *scic,
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u16 io_tag);
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void scic_sds_controller_power_control_queue_insert(
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struct scic_sds_controller *scic,
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struct scic_sds_phy *sci_phy);
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void scic_sds_controller_power_control_queue_remove(
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struct scic_sds_controller *scic,
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struct scic_sds_phy *sci_phy);
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void scic_sds_controller_link_up(
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struct scic_sds_controller *scic,
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struct scic_sds_port *sci_port,
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struct scic_sds_phy *sci_phy);
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void scic_sds_controller_link_down(
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struct scic_sds_controller *scic,
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struct scic_sds_port *sci_port,
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struct scic_sds_phy *sci_phy);
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void scic_sds_controller_remote_device_stopped(
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struct scic_sds_controller *scic,
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struct scic_sds_remote_device *sci_dev);
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void scic_sds_controller_copy_task_context(
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struct scic_sds_controller *scic,
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struct scic_sds_request *this_request);
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void scic_sds_controller_register_setup(struct scic_sds_controller *scic);
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enum sci_status scic_controller_continue_io(struct scic_sds_request *sci_req);
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int isci_host_scan_finished(struct Scsi_Host *, unsigned long);
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void isci_host_scan_start(struct Scsi_Host *);
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2011-07-03 07:56:22 +02:00
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int isci_host_init(struct isci_host *);
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void isci_host_init_controller_names(
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struct isci_host *isci_host,
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unsigned int controller_idx);
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void isci_host_deinit(
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struct isci_host *);
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void isci_host_port_link_up(
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struct isci_host *,
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struct scic_sds_port *,
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struct scic_sds_phy *);
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int isci_host_dev_found(struct domain_device *);
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void isci_host_remote_device_start_complete(
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struct isci_host *,
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struct isci_remote_device *,
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enum sci_status);
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2011-05-09 02:34:44 +02:00
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void scic_controller_disable_interrupts(
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struct scic_sds_controller *scic);
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enum sci_status scic_controller_start_io(
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struct scic_sds_controller *scic,
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struct scic_sds_remote_device *remote_device,
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struct scic_sds_request *io_request,
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u16 io_tag);
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enum sci_task_status scic_controller_start_task(
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struct scic_sds_controller *scic,
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struct scic_sds_remote_device *remote_device,
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struct scic_sds_request *task_request,
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u16 io_tag);
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enum sci_status scic_controller_terminate_request(
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struct scic_sds_controller *scic,
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struct scic_sds_remote_device *remote_device,
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struct scic_sds_request *request);
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enum sci_status scic_controller_complete_io(
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struct scic_sds_controller *scic,
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struct scic_sds_remote_device *remote_device,
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struct scic_sds_request *io_request);
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u16 scic_controller_allocate_io_tag(
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struct scic_sds_controller *scic);
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enum sci_status scic_controller_free_io_tag(
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struct scic_sds_controller *scic,
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u16 io_tag);
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#endif
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