FreeBSD/Linux Kernel Cross Reference
sys/dev/isci/scil/scif_sas_smp_activity_clear_affiliation.c

     /*-
      * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
      *
      * This file is provided under a dual BSD/GPLv2 license.  When using or
      * redistributing this file, you may do so under either license.
      *
      * GPL LICENSE SUMMARY
      *
      * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
     *
     * This program is free software; you can redistribute it and/or modify
     * it under the terms of version 2 of the GNU General Public License as
     * published by the Free Software Foundation.
     *
     * This program is distributed in the hope that it will be useful, but
     * WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     * General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
     * The full GNU General Public License is included in this distribution
     * in the file called LICENSE.GPL.
     *
     * BSD LICENSE
     *
     * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
     * All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     *
     *   * Redistributions of source code must retain the above copyright
     *     notice, this list of conditions and the following disclaimer.
     *   * Redistributions in binary form must reproduce the above copyright
     *     notice, this list of conditions and the following disclaimer in
     *     the documentation and/or other materials provided with the
     *     distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    /**
     * @file
     *
     * @brief This file contains the methods for the SCIF_SAS_SMP_REMMOTE object's
     *           clear affiliation activity.
     */
    #include <dev/isci/scil/sci_controller.h>
    #include <dev/isci/scil/scif_sas_controller.h>
    #include <dev/isci/scil/scif_sas_remote_device.h>
    #include <dev/isci/scil/scif_sas_logger.h>
    
    #include <dev/isci/scil/scif_sas_smp_remote_device.h>
    #include <dev/isci/scil/scif_sas_smp_io_request.h>
    #include <dev/isci/scil/intel_sas.h>
    #include <dev/isci/scil/scic_io_request.h>
    #include <dev/isci/scil/scic_remote_device.h>
    #include <dev/isci/scil/scif_sas_smp_phy.h>
    
    //******************************************************************************
    //* P R I V A T E   M E T H O D S
    //******************************************************************************
    
    /**
     * @brief This method finds the next smp phy (from the anchor_phy) that link to
     *           a SATA end device.
     *
     * @param[in] fw_device the framework SMP device that is clearing affiliation for
     *               its remote SATA devices'
     *
     * @return SCIF_SAS_SMP_PHY_T a smp phy, to which clear affiliation phy control command
     *            is to be sent.
     */
    static
    SCIF_SAS_SMP_PHY_T * scif_sas_smp_remote_device_find_next_smp_phy_link_to_sata(
       SCIF_SAS_SMP_PHY_T * anchor_phy
    )
    {
       SCI_FAST_LIST_ELEMENT_T  * element = &anchor_phy->list_element;
       SCIF_SAS_SMP_PHY_T * curr_smp_phy = NULL;
    
       while (element != NULL)
       {
         curr_smp_phy = (SCIF_SAS_SMP_PHY_T*) sci_fast_list_get_object(element);
         element = sci_fast_list_get_next(element);
   
         if (curr_smp_phy->attached_device_type == SMP_END_DEVICE_ONLY
             && curr_smp_phy->u.end_device != NULL)
         {
            SMP_DISCOVER_RESPONSE_PROTOCOLS_T  dev_protocols;
            scic_remote_device_get_protocols(
               curr_smp_phy->u.end_device->core_object, &dev_protocols);
   
            if (dev_protocols.u.bits.attached_stp_target)
               return curr_smp_phy;
         }
      }
   
      return NULL;
   }
   
   //******************************************************************************
   //* P U B L I C   M E T H O D S
   //******************************************************************************
   
   /**
    * @brief This method starts the clear affiliation activity for a
    *           smp device's remote SATA devices.
    *
    * @param[in] fw_device the framework SMP device that is clearing affiliation for
    *               its remote SATA devices.
    *
    * @return none
    */
   void scif_sas_smp_remote_device_start_clear_affiliation(
      SCIF_SAS_REMOTE_DEVICE_T * fw_device
   )
   {
      SCIF_SAS_SMP_REMOTE_DEVICE_T * smp_device =
         &fw_device->protocol_device.smp_device;
   
      SCIF_SAS_SMP_PHY_T * phy_to_clear_affiliation = NULL;
   
      if (smp_device->smp_phy_list.list_head != NULL)
      {
         phy_to_clear_affiliation =
            scif_sas_smp_remote_device_find_next_smp_phy_link_to_sata(
               (SCIF_SAS_SMP_PHY_T *)smp_device->smp_phy_list.list_head->object
            );
      }
   
      if (phy_to_clear_affiliation != NULL)
      {
         smp_device->curr_clear_affiliation_phy = phy_to_clear_affiliation;
   
         //set current activity
         fw_device->protocol_device.smp_device.current_activity =
            SCIF_SAS_SMP_REMOTE_DEVICE_ACTIVITY_CLEAR_AFFILIATION;
   
         //Set current_smp_request to PHY CONTROL.
         fw_device->protocol_device.smp_device.current_smp_request =
            SMP_FUNCTION_PHY_CONTROL;
   
         //reset discover_to_start flag.
         fw_device->protocol_device.smp_device.scheduled_activity =
            SCIF_SAS_SMP_REMOTE_DEVICE_ACTIVITY_NONE;
   
         //build PHY Control (clear affiliation) to the phy.
         scif_sas_smp_request_construct_phy_control(
            fw_device->domain->controller,
            fw_device,
            PHY_OPERATION_CLEAR_AFFILIATION,
            phy_to_clear_affiliation->phy_identifier,
            NULL,
            NULL
         );
   
         //issue DPC to start this request.
         scif_cb_start_internal_io_task_schedule(
            fw_device->domain->controller,
            scif_sas_controller_start_high_priority_io,
            fw_device->domain->controller
         );
      }
      else
         scif_sas_smp_remote_device_finish_clear_affiliation(fw_device);
   }
   
   
   /**
    * @brief This method continues the clear affiliation activity for a
    *           smp device's remote SATA devices.
    *
    * @param[in] fw_device the framework SMP device that is clearing affiliation for
    *               its remote SATA devices.
    *
    * @return none
    */
   void scif_sas_smp_remote_device_continue_clear_affiliation(
      SCIF_SAS_REMOTE_DEVICE_T * fw_device
   )
   {
      SCIF_SAS_SMP_REMOTE_DEVICE_T * smp_device =
         &fw_device->protocol_device.smp_device;
   
      //search from next immediate smp phy.
      SCIF_SAS_SMP_PHY_T * phy_to_clear_affiliation = NULL;
   
      if (smp_device->curr_clear_affiliation_phy->list_element.next != NULL)
      {
         phy_to_clear_affiliation =
            scif_sas_smp_remote_device_find_next_smp_phy_link_to_sata(
               smp_device->curr_clear_affiliation_phy->list_element.next->object
            );
      }
   
      if (phy_to_clear_affiliation != NULL)
      {
         smp_device->curr_clear_affiliation_phy = phy_to_clear_affiliation;
   
         //build PHY Control (clear affiliation) to the phy.
         scif_sas_smp_request_construct_phy_control(
            fw_device->domain->controller,
            fw_device,
            PHY_OPERATION_CLEAR_AFFILIATION,
            phy_to_clear_affiliation->phy_identifier,
            NULL,
            NULL
         );
      }
      else
         scif_sas_smp_remote_device_finish_clear_affiliation(fw_device);
   }
   
   
   /**
    * @brief This method finishes the clear affiliation activity for a
    *           smp device's remote SATA devices. It then notify the domain it fihishes
    *           the clear affiliation activity.
    *
    * @param[in] fw_device the framework SMP device that is clearing affiliation for
    *               its remote SATA devices.
    *
    * @return none
    */
   void scif_sas_smp_remote_device_finish_clear_affiliation(
      SCIF_SAS_REMOTE_DEVICE_T * fw_device
   )
   {
      SCIF_SAS_DOMAIN_T * fw_domain = fw_device->domain;
   
      scif_sas_smp_remote_device_clear(fw_device);
   
      //let domain continue to clear affiliation on other smp devices.
      scif_sas_domain_continue_clear_affiliation(fw_domain);
   }
   
   

Cache object: 2fce5dcc264d2d42d13f1519d6d6f7f5