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-rw-r--r--drivers/scsi/isci/events.c619
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diff --git a/drivers/scsi/isci/events.c b/drivers/scsi/isci/events.c
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+++ b/drivers/scsi/isci/events.c
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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.
+ */
+
+
+/**
+ * This file contains isci module object implementation.
+ *
+ *
+ */
+
+#include "isci.h"
+#include "request.h"
+#include "sata.h"
+#include "task.h"
+
+/**
+ * scic_cb_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.
+ * @cookie: This parameter specifies a piece of information that the user must
+ * retain. This cookie is to be supplied by the user anytime a timeout
+ * occurs for the created timer.
+ *
+ * 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 *scic_cb_timer_create(
+ struct scic_sds_controller *controller,
+ void (*timer_callback)(void *),
+ void *cookie)
+{
+ struct isci_host *isci_host;
+ struct isci_timer *timer = NULL;
+
+ isci_host = (struct isci_host *)sci_object_get_association(controller);
+
+ dev_dbg(&isci_host->pdev->dev,
+ "%s: isci_host = %p",
+ __func__, isci_host);
+
+ timer = isci_timer_create(&isci_host->timer_list_struct,
+ isci_host,
+ cookie,
+ timer_callback);
+
+ dev_dbg(&isci_host->pdev->dev, "%s: timer = %p\n", __func__, timer);
+
+ return (void *)timer;
+}
+
+
+/**
+ * scic_cb_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 scic_cb_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);
+
+}
+
+/**
+ * scic_cb_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 scic_cb_timer_stop(
+ struct scic_sds_controller *controller,
+ void *timer)
+{
+ 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\n",
+ __func__, isci_host, timer);
+
+ isci_timer_stop((struct isci_timer *)timer);
+}
+
+/**
+ * scic_cb_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 scic_cb_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);
+}
+
+/**
+ * scic_cb_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 scic_cb_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);
+}
+
+/**
+ * scic_cb_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 scic_cb_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);
+}
+
+/**
+ * scic_cb_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 scic_cb_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);
+}
+
+/**
+ * scic_cb_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 scic_cb_port_stop_complete(
+ struct scic_sds_controller *controller,
+ struct scic_sds_port *port,
+ enum sci_status completion_status)
+{
+ pr_warn("%s:************************************************\n",
+ __func__);
+}
+
+/**
+ * scic_cb_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 scic_cb_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);
+}
+
+/**
+ * scic_cb_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 scic_cb_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);
+}
+
+/**
+ * scic_cb_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 scic_cb_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);
+}
+
+/**
+ * scic_cb_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 scic_cb_port_invalid_link_up(
+ struct scic_sds_controller *controller,
+ struct scic_sds_port *port,
+ struct scic_sds_phy *phy)
+{
+ pr_warn("%s:************************************************\n",
+ __func__);
+}
+
+/**
+ * scic_cb_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
+ * SCI_INVALID_HANDLE_T.
+ * @phy: This parameter specifies the phy on which the primitive was received.
+ *
+ */
+void scic_cb_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);
+}
+
+
+
+
+/**
+ * scic_cb_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
+ * SCI_INVALID_HANDLE
+ * @phy: This parameter specifies the phy object for which the user callback is
+ * being invoked.
+ *
+ * none.
+ */
+void scic_cb_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);
+}
+
+/**
+ * scic_cb_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
+ * SCI_INVALID_HANDLE
+ * @phy: This parameter specifies the phy object for which the user callback is
+ * being invoked.
+ *
+ * none.
+ */
+void scic_cb_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);
+}
+
+/**
+ * scic_cb_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 scic_cb_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);
+
+}
+
+/**
+ * scic_cb_remote_device_stop_complete() - This user callback method will
+ * inform the user that a stop 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 scic_cb_remote_device_stop_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_stop_complete(
+ isci_host, isci_device, completion_status);
+
+}
+
+/**
+ * scic_cb_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 scic_cb_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);
+}
+
+/**
+ * scic_cb_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 scic_cb_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);
+}
+
+
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