blob: 9d58e458a37bb556f4257bd83ecbf3df10b75dc1 [file] [log] [blame]
/*
* 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.
*/
/**
* This file contains isci module object implementation.
*
*
*/
#include "isci.h"
#include "request.h"
#include "sata.h"
#include "task.h"
#include "events.h"
/**
* isci_event_timer_create() - This callback method asks the user to create a
* timer and provide a handle for this timer for use in further timer
* interactions. The appropriate isci timer object function is called to
* create a timer object.
* @timer_callback: This parameter specifies the callback method to be invoked
* whenever the timer expires.
* @controller: This parameter specifies the controller with which this timer
* is to be associated.
* @cb_param: opaque callback parameter
*
* This method returns a handle to a timer object created by the user. The
* handle will be utilized for all further interactions relating to this timer.
*/
void *isci_event_timer_create(struct scic_sds_controller *scic,
void (*timer_callback)(void *),
void *cb_param)
{
struct isci_host *ihost = sci_object_get_association(scic);
struct isci_timer *itimer;
itimer = isci_timer_create(ihost, cb_param, timer_callback);
dev_dbg(&ihost->pdev->dev, "%s: timer = %p\n", __func__, itimer);
return itimer;
}
/**
* isci_event_timer_start() - This callback method asks the user to start the
* supplied timer. The appropriate isci timer object function is called to
* start the timer.
* @controller: This parameter specifies the controller with which this timer
* is to associated.
* @timer: This parameter specifies the timer to be started.
* @milliseconds: This parameter specifies the number of milliseconds for which
* to stall. The operating system driver is allowed to round this value up
* where necessary.
*
*/
void isci_event_timer_start(
struct scic_sds_controller *controller,
void *timer,
u32 milliseconds)
{
struct isci_host *isci_host;
isci_host =
(struct isci_host *)sci_object_get_association(controller);
dev_dbg(&isci_host->pdev->dev,
"%s: isci_host = %p, timer = %p, milliseconds = %d\n",
__func__, isci_host, timer, milliseconds);
isci_timer_start((struct isci_timer *)timer, milliseconds);
}
/**
* isci_event_timer_stop() - This callback method asks the user to stop the
* supplied timer. The appropriate isci timer object function is called to
* stop the timer.
* @controller: This parameter specifies the controller with which this timer
* is to associated.
* @timer: This parameter specifies the timer to be stopped.
*
*/
void isci_event_timer_stop(struct scic_sds_controller *controller, void *timer)
{
struct isci_host *isci_host = sci_object_get_association(controller);
dev_dbg(&isci_host->pdev->dev,
"%s: isci_host = %p, timer = %p\n",
__func__, isci_host, timer);
isci_timer_stop((struct isci_timer *)timer);
}
void isci_event_timer_destroy(struct scic_sds_controller *scic, void *timer)
{
struct isci_host *ihost = sci_object_get_association(scic);
dev_dbg(&ihost->pdev->dev, "%s: ihost = %p, timer = %p\n",
__func__, ihost, timer);
isci_del_timer(ihost, timer);
}
/**
* isci_event_controller_start_complete() - This user callback will inform the
* user that the controller has finished the start process. The associated
* isci host adapter's start_complete function is called.
* @controller: This parameter specifies the controller that was started.
* @completion_status: This parameter specifies the results of the start
* operation. SCI_SUCCESS indicates successful completion.
*
*/
void isci_event_controller_start_complete(
struct scic_sds_controller *controller,
enum sci_status completion_status)
{
struct isci_host *isci_host =
(struct isci_host *)sci_object_get_association(controller);
dev_dbg(&isci_host->pdev->dev,
"%s: isci_host = %p\n", __func__, isci_host);
isci_host_start_complete(isci_host, completion_status);
}
/**
* isci_event_controller_stop_complete() - This user callback will inform the user
* that the controller has finished the stop process. The associated isci
* host adapter's start_complete function is called.
* @controller: This parameter specifies the controller that was stopped.
* @completion_status: This parameter specifies the results of the stop
* operation. SCI_SUCCESS indicates successful completion.
*
*/
void isci_event_controller_stop_complete(
struct scic_sds_controller *controller,
enum sci_status completion_status)
{
struct isci_host *isci_host =
(struct isci_host *)sci_object_get_association(controller);
dev_dbg(&isci_host->pdev->dev,
"%s: status = 0x%x\n", __func__, completion_status);
isci_host_stop_complete(isci_host, completion_status);
}
/**
* isci_event_io_request_complete() - This user callback will inform the user that
* an IO request has completed.
* @controller: This parameter specifies the controller on which the IO is
* completing.
* @remote_device: This parameter specifies the remote device on which this IO
* request is completing.
* @io_request: This parameter specifies the IO request that has completed.
* @completion_status: This parameter specifies the results of the IO request
* operation. SCI_SUCCESS indicates successful completion.
*
*/
void isci_event_io_request_complete(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device,
struct scic_sds_request *scic_io_request,
enum sci_io_status completion_status)
{
struct isci_request *request;
struct isci_host *isci_host;
isci_host =
(struct isci_host *)sci_object_get_association(controller);
request =
(struct isci_request *)sci_object_get_association(
scic_io_request
);
isci_request_io_request_complete(isci_host,
request,
completion_status);
}
/**
* isci_event_task_request_complete() - This user callback will inform the user
* that a task management request completed.
* @controller: This parameter specifies the controller on which the task
* management request is completing.
* @remote_device: This parameter specifies the remote device on which this
* task management request is completing.
* @task_request: This parameter specifies the task management request that has
* completed.
* @completion_status: This parameter specifies the results of the IO request
* operation. SCI_SUCCESS indicates successful completion.
*
*/
void isci_event_task_request_complete(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device,
struct scic_sds_request *scic_task_request,
enum sci_task_status completion_status)
{
struct isci_request *request;
struct isci_host *isci_host;
isci_host =
(struct isci_host *)sci_object_get_association(controller);
request =
(struct isci_request *)sci_object_get_association(
scic_task_request);
isci_task_request_complete(isci_host, request, completion_status);
}
/**
* isci_event_port_stop_complete() - This method informs the user when a stop
* operation on the port has completed.
* @controller: This parameter represents the controller which contains the
* port.
* @port: This parameter specifies the SCI port object for which the callback
* is being invoked.
* @completion_status: This parameter specifies the status for the operation
* being completed.
*
*/
void isci_event_port_stop_complete(
struct scic_sds_controller *controller,
struct scic_sds_port *port,
enum sci_status completion_status)
{
struct isci_host *isci_host;
isci_host = (struct isci_host *)sci_object_get_association(controller);
dev_notice(&isci_host->pdev->dev, "Port stop complete\n");
}
/**
* isci_event_port_hard_reset_complete() - This method informs the user when a
* hard reset on the port has completed. This hard reset could have been
* initiated by the user or by the remote port.
* @controller: This parameter represents the controller which contains the
* port.
* @port: This parameter specifies the SCI port object for which the callback
* is being invoked.
* @completion_status: This parameter specifies the status for the operation
* being completed.
*
*/
void isci_event_port_hard_reset_complete(
struct scic_sds_controller *controller,
struct scic_sds_port *port,
enum sci_status completion_status)
{
struct isci_port *isci_port
= (struct isci_port *)sci_object_get_association(port);
isci_port_hard_reset_complete(isci_port, completion_status);
}
/**
* isci_event_port_ready() - This method informs the user that the port is now in
* a ready state and can be utilized to issue IOs.
* @controller: This parameter represents the controller which contains the
* port.
* @port: This parameter specifies the SCI port object for which the callback
* is being invoked.
*
*/
void isci_event_port_ready(
struct scic_sds_controller *controller,
struct scic_sds_port *port)
{
struct isci_port *isci_port;
struct isci_host *isci_host;
isci_host =
(struct isci_host *)sci_object_get_association(controller);
isci_port =
(struct isci_port *)sci_object_get_association(port);
dev_dbg(&isci_host->pdev->dev,
"%s: isci_port = %p\n", __func__, isci_port);
isci_port_ready(isci_host, isci_port);
}
/**
* isci_event_port_not_ready() - This method informs the user that the port is now
* not in a ready (i.e. busy) state and can't be utilized to issue IOs.
* @controller: This parameter represents the controller which contains the
* port.
* @port: This parameter specifies the SCI port object for which the callback
* is being invoked.
*
*/
void isci_event_port_not_ready(
struct scic_sds_controller *controller,
struct scic_sds_port *port,
u32 reason_code)
{
struct isci_port *isci_port;
struct isci_host *isci_host;
isci_host =
(struct isci_host *)sci_object_get_association(controller);
isci_port =
(struct isci_port *)sci_object_get_association(port);
dev_dbg(&isci_host->pdev->dev,
"%s: isci_port = %p\n", __func__, isci_port);
isci_port_not_ready(isci_host, isci_port);
}
/**
* isci_event_port_invalid_link_up() - This method informs the SCI Core user that
* a phy/link became ready, but the phy is not allowed in the port. In some
* situations the underlying hardware only allows for certain phy to port
* mappings. If these mappings are violated, then this API is invoked.
* @controller: This parameter represents the controller which contains the
* port.
* @port: This parameter specifies the SCI port object for which the callback
* is being invoked.
* @phy: This parameter specifies the phy that came ready, but the phy can't be
* a valid member of the port.
*
*/
void isci_event_port_invalid_link_up(
struct scic_sds_controller *controller,
struct scic_sds_port *port,
struct scic_sds_phy *phy)
{
struct isci_host *isci_host;
isci_host = (struct isci_host *)sci_object_get_association(controller);
dev_warn(&isci_host->pdev->dev, "Invalid link up!\n");
}
/**
* isci_event_port_bc_change_primitive_received() - This callback method informs
* the user that a broadcast change primitive was received.
* @controller: This parameter represents the controller which contains the
* port.
* @port: This parameter specifies the SCI port object for which the callback
* is being invoked. For instances where the phy on which the primitive was
* received is not part of a port, this parameter will be NULL.
* @phy: This parameter specifies the phy on which the primitive was received.
*
*/
void isci_event_port_bc_change_primitive_received(
struct scic_sds_controller *controller,
struct scic_sds_port *port,
struct scic_sds_phy *phy)
{
struct isci_host *isci_host;
isci_host =
(struct isci_host *)sci_object_get_association(controller);
dev_dbg(&isci_host->pdev->dev,
"%s: port = %p, phy = %p\n", __func__, port, phy);
isci_port_bc_change_received(isci_host, port, phy);
}
/**
* isci_event_port_link_up() - This callback method informs the user that a phy
* has become operational and is capable of communicating with the remote
* end point.
* @controller: This parameter represents the controller associated with the
* phy.
* @port: This parameter specifies the port object for which the user callback
* is being invoked. There may be conditions where this parameter can be
* NULL
* @phy: This parameter specifies the phy object for which the user callback is
* being invoked.
*
* none.
*/
void isci_event_port_link_up(
struct scic_sds_controller *controller,
struct scic_sds_port *port,
struct scic_sds_phy *phy)
{
struct isci_host *isci_host;
isci_host =
(struct isci_host *)sci_object_get_association(controller);
dev_dbg(&isci_host->pdev->dev,
"%s: phy = %p\n", __func__, phy);
isci_port_link_up(isci_host, port, phy);
}
/**
* isci_event_port_link_down() - This callback method informs the user that a phy
* is no longer operational and is not capable of communicating with the
* remote end point.
* @controller: This parameter represents the controller associated with the
* phy.
* @port: This parameter specifies the port object for which the user callback
* is being invoked. There may be conditions where this parameter can be
* NULL
* @phy: This parameter specifies the phy object for which the user callback is
* being invoked.
*
* none.
*/
void isci_event_port_link_down(
struct scic_sds_controller *controller,
struct scic_sds_port *port,
struct scic_sds_phy *phy)
{
struct isci_host *isci_host;
struct isci_phy *isci_phy;
struct isci_port *isci_port;
isci_host =
(struct isci_host *)sci_object_get_association(controller);
isci_phy =
(struct isci_phy *)sci_object_get_association(phy);
isci_port =
(struct isci_port *)sci_object_get_association(port);
dev_dbg(&isci_host->pdev->dev,
"%s: isci_port = %p\n", __func__, isci_port);
isci_port_link_down(isci_host, isci_phy, isci_port);
}
/**
* isci_event_remote_device_start_complete() - This user callback method will
* inform the user that a start operation has completed.
* @controller: This parameter specifies the core controller associated with
* the completion callback.
* @remote_device: This parameter specifies the remote device associated with
* the completion callback.
* @completion_status: This parameter specifies the completion status for the
* operation.
*
*/
void isci_event_remote_device_start_complete(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device,
enum sci_status completion_status)
{
struct isci_host *isci_host;
struct isci_remote_device *isci_device;
isci_host =
(struct isci_host *)sci_object_get_association(controller);
isci_device =
(struct isci_remote_device *)sci_object_get_association(
remote_device
);
dev_dbg(&isci_host->pdev->dev,
"%s: isci_device = %p\n", __func__, isci_device);
isci_remote_device_start_complete(
isci_host, isci_device, completion_status);
}
/**
* isci_event_remote_device_stop_complete() - This user callback method will
* inform the user that a stop operation has completed.
* @scic: This parameter specifies the core controller associated with
* the completion callback.
* @remote_device: This parameter specifies the remote device associated with
* the completion callback.
* @completion_status: This parameter specifies the completion status for the
* operation.
*
*/
void isci_event_remote_device_stop_complete(struct scic_sds_controller *scic,
struct scic_sds_remote_device *sci_dev,
enum sci_status completion_status)
{
struct isci_host *ihost;
struct isci_remote_device *idev;
ihost = sci_object_get_association(scic);
idev = sci_object_get_association(sci_dev);
dev_dbg(&ihost->pdev->dev,
"%s: idev = %p\n", __func__, idev);
isci_remote_device_stop_complete(ihost, idev, completion_status);
}
/**
* isci_event_remote_device_ready() - This user callback method will inform the
* user that a remote device is now capable of handling IO requests.
* @controller: This parameter specifies the core controller associated with
* the completion callback.
* @remote_device: This parameter specifies the remote device associated with
* the callback.
*
*/
void isci_event_remote_device_ready(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device)
{
struct isci_remote_device *isci_device =
(struct isci_remote_device *)
sci_object_get_association(remote_device);
dev_dbg(&isci_device->isci_port->isci_host->pdev->dev,
"%s: isci_device = %p\n", __func__, isci_device);
isci_remote_device_ready(isci_device);
}
/**
* isci_event_remote_device_not_ready() - This user callback method will inform
* the user that a remote device is no longer capable of handling IO
* requests (until a ready callback is invoked).
* @controller: This parameter specifies the core controller associated with
* the completion callback.
* @remote_device: This parameter specifies the remote device associated with
* the callback.
* @reason_code: This parameter specifies the reason for the remote device
* going to a not ready state.
*
*/
void isci_event_remote_device_not_ready(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device,
u32 reason_code)
{
struct isci_remote_device *isci_device =
(struct isci_remote_device *)
sci_object_get_association(remote_device);
struct isci_host *isci_host;
isci_host =
(struct isci_host *)sci_object_get_association(controller);
dev_dbg(&isci_host->pdev->dev,
"%s: isci_device = %p, reason_code = %x\n",
__func__, isci_device, reason_code);
isci_remote_device_not_ready(isci_device, reason_code);
}