diff options
Diffstat (limited to 'sys/dev/isci/scil/scif_sas_smp_activity_clear_affiliation.c')
| -rw-r--r-- | sys/dev/isci/scil/scif_sas_smp_activity_clear_affiliation.c | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/sys/dev/isci/scil/scif_sas_smp_activity_clear_affiliation.c b/sys/dev/isci/scil/scif_sas_smp_activity_clear_affiliation.c new file mode 100644 index 0000000..998e147 --- /dev/null +++ b/sys/dev/isci/scil/scif_sas_smp_activity_clear_affiliation.c @@ -0,0 +1,252 @@ +/*- + * 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); +} + + |
