718cf2ccb9
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333 lines
12 KiB
C
333 lines
12 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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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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*
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <dev/isci/isci.h>
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#include <cam/cam_periph.h>
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#include <cam/cam_xpt_periph.h>
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#include <dev/isci/scil/scif_domain.h>
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#include <dev/isci/scil/scif_remote_device.h>
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#include <dev/isci/scil/scif_controller.h>
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#include <dev/isci/scil/scif_user_callback.h>
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/**
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* @brief This callback method informs the framework user that something
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* in the supplied domain has changed (e.g. a device was added or
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* removed).
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*
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* This callback is called by the framework outside of discovery or
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* target reset processes. Specifically, domain changes occurring
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* during these processes are handled by the framework. For example,
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* in the case of Serial Attached SCSI, reception of a BROADCAST (CHANGE)
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* during discovery will cause discovery to restart. Thus, discovery
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* does not complete until all BCNs are processed. Note, during controller
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* stopping/reset process, the framework user should not expect this call
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* back.
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*
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* @param[in] controller This parameter specifies the controller object
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* with which this callback is associated.
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* @param[in] domain This parameter specifies the domain object with
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* which this callback is associated.
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*
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* @return none
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*/
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void
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scif_cb_domain_change_notification(SCI_CONTROLLER_HANDLE_T controller,
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SCI_DOMAIN_HANDLE_T domain)
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{
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struct ISCI_CONTROLLER *isci_controller =
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(struct ISCI_CONTROLLER *)sci_object_get_association(controller);
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/* When the controller start is complete, we will explicitly discover
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* all of the domains then. This is because SCIF will not allow
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* any I/O to start until the controller is ready, meaning internal SMP
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* requests triggered by domain discovery won't work until the controller
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* is ready.
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*/
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if (isci_controller->is_started == TRUE)
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scif_domain_discover(domain,
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scif_domain_get_suggested_discover_timeout(domain),
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DEVICE_TIMEOUT);
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}
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/**
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* @brief This callback method informs the framework user that a previously
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* requested discovery operation on the domain has completed.
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*
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* @param[in] controller This parameter specifies the controller object
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* with which this callback is associated.
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* @param[in] domain This parameter specifies the domain object with
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* which this callback is associated.
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* @param[in] completion_status This parameter indicates the results of the
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* discovery operation.
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*
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* @return none
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*/
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void
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scif_cb_domain_discovery_complete(SCI_CONTROLLER_HANDLE_T controller,
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SCI_DOMAIN_HANDLE_T domain, SCI_STATUS completion_status)
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{
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if(completion_status != SCI_SUCCESS)
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isci_log_message(0, "ISCI",
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"scif_cb_domain_discovery_complete status = 0x%x\n",
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completion_status);
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isci_controller_domain_discovery_complete(
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(struct ISCI_CONTROLLER *)sci_object_get_association(controller),
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(struct ISCI_DOMAIN *) sci_object_get_association(domain));
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}
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/**
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* @brief This callback method informs the framework user that a previously
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* requested reset operation on the domain has completed.
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*
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* @param[in] controller This parameter specifies the controller object
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* with which this callback is associated.
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* @param[in] domain This parameter specifies the domain object with
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* which this callback is associated.
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* @param[in] completion_status This parameter indicates the results of the
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* reset operation.
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*
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* @return none
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*/
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void
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scif_cb_domain_reset_complete(SCI_CONTROLLER_HANDLE_T controller,
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SCI_DOMAIN_HANDLE_T domain, SCI_STATUS completion_status)
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{
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}
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/**
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* @brief This callback method informs the framework user that the domain
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* is ready and capable of processing IO requests for devices found
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* inside it.
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*
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* @param[in] controller This parameter specifies the controller object
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* with which this callback is associated.
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* @param[in] domain This parameter specifies the domain object with
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* which this callback is associated.
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*
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* @return none
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*/
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void
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scif_cb_domain_ready(SCI_CONTROLLER_HANDLE_T controller,
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SCI_DOMAIN_HANDLE_T domain)
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{
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uint32_t i;
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struct ISCI_DOMAIN *isci_domain = sci_object_get_association(domain);
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struct ISCI_CONTROLLER *isci_controller =
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sci_object_get_association(controller);
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for (i = 0; i < SCI_MAX_REMOTE_DEVICES; i++) {
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struct ISCI_REMOTE_DEVICE *remote_device =
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isci_controller->remote_device[i];
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if (remote_device != NULL &&
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remote_device->domain == isci_domain)
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isci_remote_device_release_device_queue(remote_device);
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}
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}
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/**
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* @brief This callback method informs the framework user that the domain
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* is no longer ready. Thus, it is incapable of processing IO
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* requests for devices found inside it.
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*
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* @param[in] controller This parameter specifies the controller object
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* with which this callback is associated.
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* @param[in] domain This parameter specifies the domain object with
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* which this callback is associated.
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*
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* @return none
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*/
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void
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scif_cb_domain_not_ready(SCI_CONTROLLER_HANDLE_T controller,
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SCI_DOMAIN_HANDLE_T domain)
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{
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}
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/**
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* @brief This callback method informs the framework user that a new
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* direct attached device was found in the domain.
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*
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* @param[in] controller This parameter specifies the controller object
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* with which this callback is associated.
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* @param[in] domain This parameter specifies the domain object with
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* which this callback is associated.
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* @param[in] sas_address This parameter specifies the SAS address of
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* the new device.
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* @param[in] protocols This parameter specifies the protocols
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* supported by the newly discovered device.
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*
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* @return none
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*/
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void
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scif_cb_domain_da_device_added(SCI_CONTROLLER_HANDLE_T controller,
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SCI_DOMAIN_HANDLE_T domain, SCI_SAS_ADDRESS_T *sas_address,
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SCI_SAS_IDENTIFY_ADDRESS_FRAME_PROTOCOLS_T *protocols)
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{
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struct ISCI_REMOTE_DEVICE *remote_device;
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struct ISCI_DOMAIN *isci_domain =
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(struct ISCI_DOMAIN *)sci_object_get_association(domain);
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/*
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* For direct-attached devices, do not pull the device object from
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* the pool. Rather, use the one stored in the domain object which
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* will ensure that we always get consistent target ids for direct
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* attached devices.
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*/
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remote_device = isci_domain->da_remote_device;
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scif_remote_device_construct(domain,
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(uint8_t*)remote_device + sizeof(struct ISCI_REMOTE_DEVICE),
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&(remote_device->sci_object));
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sci_object_set_association(remote_device->sci_object, remote_device);
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scif_remote_device_da_construct(remote_device->sci_object, sas_address,
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protocols);
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/* We do not put the device in the ISCI_CONTROLLER's device array yet.
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* That will happen once the device becomes ready (see
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* scif_cb_remote_device_ready).
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*/
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remote_device->domain = isci_domain;
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}
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/**
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* @brief This callback method informs the framework user that a new
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* expander attached device was found in the domain.
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*
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* @param[in] controller This parameter specifies the controller object
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* with which this callback is associated.
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* @param[in] domain This parameter specifies the domain object with
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* which this callback is associated.
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* @param[in] containing_device This parameter specifies the remote
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* device that contains the device that was added.
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* @param[in] smp_response This parameter specifies the SMP response
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* data associated with the newly discovered device.
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*
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* @return none
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*/
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void
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scif_cb_domain_ea_device_added(SCI_CONTROLLER_HANDLE_T controller,
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SCI_DOMAIN_HANDLE_T domain, SCI_REMOTE_DEVICE_HANDLE_T containing_device,
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SMP_RESPONSE_DISCOVER_T *smp_response)
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{
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struct ISCI_REMOTE_DEVICE *remote_device;
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struct ISCI_DOMAIN *isci_domain =
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(struct ISCI_DOMAIN *)sci_object_get_association(domain);
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struct ISCI_CONTROLLER *isci_controller =
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(struct ISCI_CONTROLLER *)sci_object_get_association(controller);
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sci_pool_get(isci_controller->remote_device_pool, remote_device);
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scif_remote_device_construct( domain,
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(uint8_t*)remote_device + sizeof(struct ISCI_REMOTE_DEVICE),
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&(remote_device->sci_object));
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sci_object_set_association(remote_device->sci_object, remote_device);
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scif_remote_device_ea_construct(remote_device->sci_object,
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containing_device, smp_response);
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/* We do not put the device in the ISCI_CONTROLLER's device array yet.
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* That will happen once the device becomes ready (see
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* scif_cb_remote_device_ready).
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*/
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remote_device->domain = isci_domain;
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}
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/**
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* @brief This callback method informs the framework user that a device
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* has been removed from the domain.
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*
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* @param[in] controller This parameter specifies the controller object
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* with which this callback is associated.
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* @param[in] domain This parameter specifies the domain object with
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* which this callback is associated.
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* @param[in] remote_device This parameter specifies the device object with
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* which this callback is associated.
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*
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* @return none
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*/
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void
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scif_cb_domain_device_removed(SCI_CONTROLLER_HANDLE_T controller,
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SCI_DOMAIN_HANDLE_T domain, SCI_REMOTE_DEVICE_HANDLE_T remote_device)
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{
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struct ISCI_REMOTE_DEVICE *isci_remote_device =
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(struct ISCI_REMOTE_DEVICE *)sci_object_get_association(remote_device);
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struct ISCI_DOMAIN *isci_domain =
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(struct ISCI_DOMAIN *)sci_object_get_association(domain);
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struct ISCI_CONTROLLER *isci_controller =
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(struct ISCI_CONTROLLER *)sci_object_get_association(controller);
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uint32_t path = cam_sim_path(isci_controller->sim);
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union ccb *ccb = xpt_alloc_ccb_nowait();
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isci_controller->remote_device[isci_remote_device->index] = NULL;
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xpt_create_path(&ccb->ccb_h.path, NULL, path,
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isci_remote_device->index, CAM_LUN_WILDCARD);
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xpt_rescan(ccb);
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scif_remote_device_destruct(remote_device);
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/*
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* Only put the remote device back into the pool if it was an
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* expander-attached device.
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*/
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if (isci_remote_device != isci_domain->da_remote_device)
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sci_pool_put(isci_controller->remote_device_pool,
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isci_remote_device);
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}
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void
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isci_domain_construct(struct ISCI_DOMAIN *domain, uint32_t domain_index,
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struct ISCI_CONTROLLER *controller)
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{
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scif_controller_get_domain_handle( controller->scif_controller_handle,
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domain_index, &domain->sci_object);
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domain->index = domain_index;
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domain->controller = controller;
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sci_object_set_association(domain->sci_object, (void *)domain);
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}
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