From 88f3b62ac131e2549b6c262cacbd47e8cca42d6e Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 22 Apr 2011 19:18:03 -0700 Subject: isci: move remote_device handling out of the core Now that the core/lldd remote_device data structures are nominally unified merge the corresponding sources into the top-level directory. Also move the remote_node_context infrastructure which has no analog at the lldd level. Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 1226 +++++++++++++++++++++++++++++++ 1 file changed, 1226 insertions(+) create mode 100644 drivers/scsi/isci/remote_node_context.c (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c new file mode 100644 index 000000000000..bdf0b5101cfa --- /dev/null +++ b/drivers/scsi/isci/remote_node_context.c @@ -0,0 +1,1226 @@ +/* + * 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. + */ + +#include "sci_base_state_machine.h" +#include "scic_sds_controller.h" +#include "scic_sds_port.h" +#include "remote_device.h" +#include "remote_node_context.h" +#include "sci_environment.h" +#include "sci_util.h" +#include "scu_event_codes.h" +#include "scu_task_context.h" + + +/** + * + * @sci_rnc: The RNC for which the is posted request is being made. + * + * This method will return true if the RNC is not in the initial state. In all + * other states the RNC is considered active and this will return true. The + * destroy request of the state machine drives the RNC back to the initial + * state. If the state machine changes then this routine will also have to be + * changed. bool true if the state machine is not in the initial state false if + * the state machine is in the initial state + */ + +/** + * + * @sci_rnc: The state of the remote node context object to check. + * + * This method will return true if the remote node context is in a READY state + * otherwise it will return false bool true if the remote node context is in + * the ready state. false if the remote node context is not in the ready state. + */ +bool scic_sds_remote_node_context_is_ready( + struct scic_sds_remote_node_context *sci_rnc) +{ + u32 current_state = sci_base_state_machine_get_state(&sci_rnc->state_machine); + + if (current_state == SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { + return true; + } + + return false; +} + +/** + * + * @sci_dev: The remote device to use to construct the RNC buffer. + * @rnc: The buffer into which the remote device data will be copied. + * + * This method will construct the RNC buffer for this remote device object. none + */ +static void scic_sds_remote_node_context_construct_buffer( + struct scic_sds_remote_node_context *sci_rnc) +{ + union scu_remote_node_context *rnc; + struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); + struct scic_sds_controller *scic; + + scic = scic_sds_remote_device_get_controller(sci_dev); + + rnc = scic_sds_controller_get_remote_node_context_buffer( + scic, sci_rnc->remote_node_index); + + memset(rnc, 0, sizeof(union scu_remote_node_context) + * scic_sds_remote_device_node_count(sci_dev)); + + rnc->ssp.remote_node_index = sci_rnc->remote_node_index; + rnc->ssp.remote_node_port_width = sci_dev->device_port_width; + rnc->ssp.logical_port_index = + scic_sds_remote_device_get_port_index(sci_dev); + + rnc->ssp.remote_sas_address_hi = SCIC_SWAP_DWORD(sci_dev->device_address.high); + rnc->ssp.remote_sas_address_lo = SCIC_SWAP_DWORD(sci_dev->device_address.low); + + rnc->ssp.nexus_loss_timer_enable = true; + rnc->ssp.check_bit = false; + rnc->ssp.is_valid = false; + rnc->ssp.is_remote_node_context = true; + rnc->ssp.function_number = 0; + + rnc->ssp.arbitration_wait_time = 0; + + + if ( + sci_dev->target_protocols.u.bits.attached_sata_device + || sci_dev->target_protocols.u.bits.attached_stp_target + ) { + rnc->ssp.connection_occupancy_timeout = + scic->user_parameters.sds1.stp_max_occupancy_timeout; + rnc->ssp.connection_inactivity_timeout = + scic->user_parameters.sds1.stp_inactivity_timeout; + } else { + rnc->ssp.connection_occupancy_timeout = + scic->user_parameters.sds1.ssp_max_occupancy_timeout; + rnc->ssp.connection_inactivity_timeout = + scic->user_parameters.sds1.ssp_inactivity_timeout; + } + + rnc->ssp.initial_arbitration_wait_time = 0; + + /* Open Address Frame Parameters */ + rnc->ssp.oaf_connection_rate = sci_dev->connection_rate; + rnc->ssp.oaf_features = 0; + rnc->ssp.oaf_source_zone_group = 0; + rnc->ssp.oaf_more_compatibility_features = 0; +} + +/** + * + * @sci_rnc: + * @callback: + * @callback_parameter: + * + * This method will setup the remote node context object so it will transition + * to its ready state. If the remote node context is already setup to + * transition to its final state then this function does nothing. none + */ +static void scic_sds_remote_node_context_setup_to_resume( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + if (sci_rnc->destination_state != SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL) { + sci_rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY; + sci_rnc->user_callback = callback; + sci_rnc->user_cookie = callback_parameter; + } +} + +/** + * + * @sci_rnc: + * @callback: + * @callback_parameter: + * + * This method will setup the remote node context object so it will transistion + * to its final state. none + */ +static void scic_sds_remote_node_context_setup_to_destory( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + sci_rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL; + sci_rnc->user_callback = callback; + sci_rnc->user_cookie = callback_parameter; +} + +/** + * + * @sci_rnc: + * @callback: + * + * This method will continue to resume a remote node context. This is used in + * the states where a resume is requested while a resume is in progress. + */ +static enum sci_status scic_sds_remote_node_context_continue_to_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) { + sci_rnc->user_callback = callback; + sci_rnc->user_cookie = callback_parameter; + + return SCI_SUCCESS; + } + + return SCI_FAILURE_INVALID_STATE; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_default_destruct_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to stop while " + "in unexpected state %d\n", + __func__, + sci_rnc, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + /* + * We have decided that the destruct request on the remote node context can not fail + * since it is either in the initial/destroyed state or is can be destroyed. */ + return SCI_SUCCESS; +} + +static enum sci_status scic_sds_remote_node_context_default_suspend_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 suspend_type, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to suspend " + "while in wrong state %d\n", + __func__, + sci_rnc, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +static enum sci_status scic_sds_remote_node_context_default_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to resume " + "while in wrong state %d\n", + __func__, + sci_rnc, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +static enum sci_status scic_sds_remote_node_context_default_start_io_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to start io " + "0x%p while in wrong state %d\n", + __func__, + sci_rnc, + sci_req, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; +} + +static enum sci_status scic_sds_remote_node_context_default_start_task_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to start " + "task 0x%p while in wrong state %d\n", + __func__, + sci_rnc, + sci_req, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + return SCI_FAILURE; +} + +static enum sci_status scic_sds_remote_node_context_default_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to process " + "event 0x%x while in wrong state %d\n", + __func__, + sci_rnc, + event_code, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +/** + * + * @sci_rnc: The rnc for which the task request is targeted. + * @sci_req: The request which is going to be started. + * + * This method determines if the task request can be started by the SCU + * hardware. When the RNC is in the ready state any task can be started. + * enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_node_context_success_start_task_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + return SCI_SUCCESS; +} + +/** + * + * @sci_rnc: + * @callback: + * @callback_parameter: + * + * This method handles destruct calls from the various state handlers. The + * remote node context can be requested to destroy from any state. If there was + * a user callback it is always replaced with the request to destroy user + * callback. enum sci_status + */ +static enum sci_status scic_sds_remote_node_context_general_destruct_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + scic_sds_remote_node_context_setup_to_destory( + sci_rnc, callback, callback_parameter + ); + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE + ); + + return SCI_SUCCESS; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_initial_state_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + if (sci_rnc->remote_node_index != SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { + scic_sds_remote_node_context_setup_to_resume( + sci_rnc, callback, callback_parameter + ); + + scic_sds_remote_node_context_construct_buffer(sci_rnc); + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE + ); + + return SCI_SUCCESS; + } + + return SCI_FAILURE_INVALID_STATE; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_posting_state_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum sci_status status; + + switch (scu_get_event_code(event_code)) { + case SCU_EVENT_POST_RNC_COMPLETE: + status = SCI_SUCCESS; + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE + ); + break; + + default: + status = SCI_FAILURE; + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to " + "process unexpected event 0x%x while in posting " + "state\n", + __func__, + sci_rnc, + event_code); + break; + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_invalidating_state_destruct_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + scic_sds_remote_node_context_setup_to_destory( + sci_rnc, callback, callback_parameter + ); + + return SCI_SUCCESS; +} + +static enum sci_status scic_sds_remote_node_context_invalidating_state_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum sci_status status; + + if (scu_get_event_code(event_code) == SCU_EVENT_POST_RNC_INVALIDATE_COMPLETE) { + status = SCI_SUCCESS; + + if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL) { + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE + ); + } else { + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE + ); + } + } else { + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TYPE_RNC_SUSPEND_TX: + case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: + /* + * We really dont care if the hardware is going to suspend + * the device since it's being invalidated anyway */ + dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p was " + "suspeneded by hardware while being " + "invalidated.\n", + __func__, + sci_rnc); + status = SCI_SUCCESS; + break; + + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p " + "requested to process event 0x%x while " + "in state %d.\n", + __func__, + sci_rnc, + event_code, + sci_base_state_machine_get_state( + &sci_rnc->state_machine)); + status = SCI_FAILURE; + break; + } + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + + +static enum sci_status scic_sds_remote_node_context_resuming_state_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum sci_status status; + + if (scu_get_event_code(event_code) == SCU_EVENT_POST_RCN_RELEASE) { + status = SCI_SUCCESS; + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE + ); + } else { + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TYPE_RNC_SUSPEND_TX: + case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: + /* + * We really dont care if the hardware is going to suspend + * the device since it's being resumed anyway */ + dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p was " + "suspeneded by hardware while being resumed.\n", + __func__, + sci_rnc); + status = SCI_SUCCESS; + break; + + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested " + "to process event 0x%x while in state %d.\n", + __func__, + sci_rnc, + event_code, + sci_base_state_machine_get_state( + &sci_rnc->state_machine)); + status = SCI_FAILURE; + break; + } + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + +/** + * + * @sci_rnc: The remote node context object being suspended. + * @callback: The callback when the suspension is complete. + * @callback_parameter: The parameter that is to be passed into the callback. + * + * This method will handle the suspend requests from the ready state. + * SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_node_context_ready_state_suspend_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 suspend_type, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + sci_rnc->user_callback = callback; + sci_rnc->user_cookie = callback_parameter; + sci_rnc->suspension_code = suspend_type; + + if (suspend_type == SCI_SOFTWARE_SUSPENSION) { + scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), + SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX); + } + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE + ); + + return SCI_SUCCESS; +} + +/** + * + * @sci_rnc: The rnc for which the io request is targeted. + * @sci_req: The request which is going to be started. + * + * This method determines if the io request can be started by the SCU hardware. + * When the RNC is in the ready state any io request can be started. enum sci_status + * SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_node_context_ready_state_start_io_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + return SCI_SUCCESS; +} + + +static enum sci_status scic_sds_remote_node_context_ready_state_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum sci_status status; + + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TL_RNC_SUSPEND_TX: + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE + ); + + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + status = SCI_SUCCESS; + break; + + case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE + ); + + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + status = SCI_SUCCESS; + break; + + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to " + "process event 0x%x while in state %d.\n", + __func__, + sci_rnc, + event_code, + sci_base_state_machine_get_state( + &sci_rnc->state_machine)); + + status = SCI_FAILURE; + break; + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_tx_suspended_state_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + enum sci_status status; + struct smp_discover_response_protocols protocols; + + scic_sds_remote_node_context_setup_to_resume( + sci_rnc, callback, callback_parameter + ); + + /* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */ + + scic_remote_device_get_protocols(rnc_to_dev(sci_rnc), &protocols); + + if ( + (protocols.u.bits.attached_ssp_target == 1) + || (protocols.u.bits.attached_smp_target == 1) + ) { + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE + ); + + status = SCI_SUCCESS; + } else if (protocols.u.bits.attached_stp_target == 1) { + if (rnc_to_dev(sci_rnc)->is_direct_attached) { + /* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */ + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE + ); + } else { + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE + ); + } + + status = SCI_SUCCESS; + } else { + status = SCI_FAILURE; + } + + return status; +} + +/** + * + * @sci_rnc: The remote node context which is to receive the task request. + * @sci_req: The task request to be transmitted to to the remote target + * device. + * + * This method will report a success or failure attempt to start a new task + * request to the hardware. Since all task requests are sent on the high + * priority queue they can be sent when the RCN is in a TX suspend state. + * enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_node_context_suspended_start_task_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + scic_sds_remote_node_context_resume(sci_rnc, NULL, NULL); + + return SCI_SUCCESS; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + scic_sds_remote_node_context_setup_to_resume( + sci_rnc, callback, callback_parameter + ); + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE + ); + + return SCI_FAILURE_INVALID_STATE; +} + +/* --------------------------------------------------------------------------- */ + +/** + * + * + * + */ +static enum sci_status scic_sds_remote_node_context_await_suspension_state_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + scic_sds_remote_node_context_setup_to_resume( + sci_rnc, callback, callback_parameter + ); + + return SCI_SUCCESS; +} + +/** + * + * @sci_rnc: The remote node context which is to receive the task request. + * @sci_req: The task request to be transmitted to to the remote target + * device. + * + * This method will report a success or failure attempt to start a new task + * request to the hardware. Since all task requests are sent on the high + * priority queue they can be sent when the RCN is in a TX suspend state. + * enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_node_context_await_suspension_state_start_task_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + return SCI_SUCCESS; +} + +static enum sci_status scic_sds_remote_node_context_await_suspension_state_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum sci_status status; + + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TL_RNC_SUSPEND_TX: + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE + ); + + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + status = SCI_SUCCESS; + break; + + case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE + ); + + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + status = SCI_SUCCESS; + break; + + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to " + "process event 0x%x while in state %d.\n", + __func__, + sci_rnc, + event_code, + sci_base_state_machine_get_state( + &sci_rnc->state_machine)); + + status = SCI_FAILURE; + break; + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + +static struct scic_sds_remote_node_context_handlers +scic_sds_remote_node_context_state_handler_table[ + SCIC_SDS_REMOTE_NODE_CONTEXT_MAX_STATES] = +{ + /* SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE */ + { + scic_sds_remote_node_context_default_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_initial_state_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_default_start_task_handler, + scic_sds_remote_node_context_default_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_continue_to_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_default_start_task_handler, + scic_sds_remote_node_context_posting_state_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE */ + { + scic_sds_remote_node_context_invalidating_state_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_continue_to_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_default_start_task_handler, + scic_sds_remote_node_context_invalidating_state_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_continue_to_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_success_start_task_handler, + scic_sds_remote_node_context_resuming_state_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_ready_state_suspend_handler, + scic_sds_remote_node_context_default_resume_handler, + scic_sds_remote_node_context_ready_state_start_io_handler, + scic_sds_remote_node_context_success_start_task_handler, + scic_sds_remote_node_context_ready_state_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_tx_suspended_state_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_suspended_start_task_handler, + scic_sds_remote_node_context_default_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_suspended_start_task_handler, + scic_sds_remote_node_context_default_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_await_suspension_state_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_await_suspension_state_start_task_handler, + scic_sds_remote_node_context_await_suspension_state_event_handler + } +}; + +/* + * ***************************************************************************** + * * REMOTE NODE CONTEXT PRIVATE METHODS + * ***************************************************************************** */ + +/** + * + * + * This method just calls the user callback function and then resets the + * callback. + */ +static void scic_sds_remote_node_context_notify_user( + struct scic_sds_remote_node_context *rnc) +{ + if (rnc->user_callback != NULL) { + (*rnc->user_callback)(rnc->user_cookie); + + rnc->user_callback = NULL; + rnc->user_cookie = NULL; + } +} + +/** + * + * + * This method will continue the remote node context state machine by + * requesting to resume the remote node context state machine from its current + * state. + */ +static void scic_sds_remote_node_context_continue_state_transitions( + struct scic_sds_remote_node_context *rnc) +{ + if (rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) { + rnc->state_handlers->resume_handler( + rnc, rnc->user_callback, rnc->user_cookie + ); + } +} + +/** + * + * @sci_rnc: The remote node context object that is to be validated. + * + * This method will mark the rnc buffer as being valid and post the request to + * the hardware. none + */ +static void scic_sds_remote_node_context_validate_context_buffer( + struct scic_sds_remote_node_context *sci_rnc) +{ + struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); + union scu_remote_node_context *rnc_buffer; + + rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( + scic_sds_remote_device_get_controller(sci_dev), + sci_rnc->remote_node_index + ); + + rnc_buffer->ssp.is_valid = true; + + if (!sci_dev->is_direct_attached && + sci_dev->target_protocols.u.bits.attached_stp_target) { + scic_sds_remote_device_post_request(sci_dev, + SCU_CONTEXT_COMMAND_POST_RNC_96); + } else { + scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_32); + + if (sci_dev->is_direct_attached) { + scic_sds_port_setup_transports(sci_dev->owning_port, + sci_rnc->remote_node_index); + } + } +} + +/** + * + * @sci_rnc: The remote node context object that is to be invalidated. + * + * This method will update the RNC buffer and post the invalidate request. none + */ +static void scic_sds_remote_node_context_invalidate_context_buffer( + struct scic_sds_remote_node_context *sci_rnc) +{ + union scu_remote_node_context *rnc_buffer; + + rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( + scic_sds_remote_device_get_controller(rnc_to_dev(sci_rnc)), + sci_rnc->remote_node_index); + + rnc_buffer->ssp.is_valid = false; + + scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), + SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE); +} + +/* + * ***************************************************************************** + * * REMOTE NODE CONTEXT STATE ENTER AND EXIT METHODS + * ***************************************************************************** */ + +/** + * + * + * + */ +static void scic_sds_remote_node_context_initial_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE + ); + + /* + * Check to see if we have gotten back to the initial state because someone + * requested to destroy the remote node context object. */ + if ( + rnc->state_machine.previous_state_id + == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE + ) { + rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; + + scic_sds_remote_node_context_notify_user(rnc); + } +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_posting_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *sci_rnc; + + sci_rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + sci_rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE + ); + + scic_sds_remote_node_context_validate_context_buffer(sci_rnc); +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_invalidating_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE + ); + + scic_sds_remote_node_context_invalidate_context_buffer(rnc); +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_resuming_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + struct smp_discover_response_protocols protocols; + struct scic_sds_remote_device *sci_dev; + + rnc = (struct scic_sds_remote_node_context *)object; + sci_dev = rnc_to_dev(rnc); + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE + ); + + /* + * For direct attached SATA devices we need to clear the TLCR + * NCQ to TCi tag mapping on the phy and in cases where we + * resume because of a target reset we also need to update + * the STPTLDARNI register with the RNi of the device + */ + scic_remote_device_get_protocols(sci_dev, &protocols); + + if (protocols.u.bits.attached_stp_target == 1 && + sci_dev->is_direct_attached) { + scic_sds_port_setup_transports(sci_dev->owning_port, + rnc->remote_node_index); + } + + scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_ready_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE + ); + + rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; + + if (rnc->user_callback != NULL) { + scic_sds_remote_node_context_notify_user(rnc); + } +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_tx_suspended_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE + ); + + scic_sds_remote_node_context_continue_state_transitions(rnc); +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_tx_rx_suspended_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE + ); + + scic_sds_remote_node_context_continue_state_transitions(rnc); +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_await_suspension_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE + ); +} + +/* --------------------------------------------------------------------------- */ + +static const struct sci_base_state scic_sds_remote_node_context_state_table[] = { + [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { + .enter_state = scic_sds_remote_node_context_initial_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = { + .enter_state = scic_sds_remote_node_context_posting_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = { + .enter_state = scic_sds_remote_node_context_invalidating_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = { + .enter_state = scic_sds_remote_node_context_resuming_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = { + .enter_state = scic_sds_remote_node_context_ready_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = { + .enter_state = scic_sds_remote_node_context_tx_suspended_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { + .enter_state = scic_sds_remote_node_context_tx_rx_suspended_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { + .enter_state = scic_sds_remote_node_context_await_suspension_state_enter, + }, +}; + +void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, + u16 remote_node_index) +{ + memset(rnc, 0, sizeof(struct scic_sds_remote_node_context)); + + rnc->remote_node_index = remote_node_index; + rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; + + sci_base_state_machine_construct( + &rnc->state_machine, + &rnc->parent, + scic_sds_remote_node_context_state_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE + ); + + sci_base_state_machine_start(&rnc->state_machine); +} -- cgit v1.2.2 From a1a113b0a1ea437daf099b44f8a39e93a02a3f47 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 21 Apr 2011 18:44:45 -0700 Subject: isci: kill smp_discover_response_protocols in favor of domain_device.dev_type This is step 1 of removing the contortions to: 1/ unparse expander phy data into a smp discover frame 2/ open-code-parse the smp discover fram into a domain_device.dev_type equivalent libsas has already spent cycles determining the dev_type, so now that scic_sds_remote_device is unified with isci_remote_device we can directly reference dev_type. This might also change multi-level expander detection as we previously only looked at dev_type == EDGE_DEV and we did not consider the FANOUT_DEV case. Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 63 ++++++++++++--------------------- 1 file changed, 22 insertions(+), 41 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index bdf0b5101cfa..285232fd5e63 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -106,8 +106,9 @@ bool scic_sds_remote_node_context_is_ready( static void scic_sds_remote_node_context_construct_buffer( struct scic_sds_remote_node_context *sci_rnc) { - union scu_remote_node_context *rnc; struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); + struct domain_device *dev = sci_dev_to_domain(sci_dev); + union scu_remote_node_context *rnc; struct scic_sds_controller *scic; scic = scic_sds_remote_device_get_controller(sci_dev); @@ -134,11 +135,7 @@ static void scic_sds_remote_node_context_construct_buffer( rnc->ssp.arbitration_wait_time = 0; - - if ( - sci_dev->target_protocols.u.bits.attached_sata_device - || sci_dev->target_protocols.u.bits.attached_stp_target - ) { + if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { rnc->ssp.connection_occupancy_timeout = scic->user_parameters.sds1.stp_max_occupancy_timeout; rnc->ssp.connection_inactivity_timeout = @@ -639,45 +636,30 @@ static enum sci_status scic_sds_remote_node_context_tx_suspended_state_resume_ha scics_sds_remote_node_context_callback callback, void *callback_parameter) { - enum sci_status status; - struct smp_discover_response_protocols protocols; + struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); + struct domain_device *dev = sci_dev_to_domain(sci_dev); + enum sci_status status = SCI_SUCCESS; - scic_sds_remote_node_context_setup_to_resume( - sci_rnc, callback, callback_parameter - ); + scic_sds_remote_node_context_setup_to_resume(sci_rnc, callback, + callback_parameter); /* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */ - - scic_remote_device_get_protocols(rnc_to_dev(sci_rnc), &protocols); - - if ( - (protocols.u.bits.attached_ssp_target == 1) - || (protocols.u.bits.attached_smp_target == 1) - ) { - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE - ); - - status = SCI_SUCCESS; - } else if (protocols.u.bits.attached_stp_target == 1) { - if (rnc_to_dev(sci_rnc)->is_direct_attached) { + if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev)) + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); + else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { + if (sci_dev->is_direct_attached) { /* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */ sci_base_state_machine_change_state( &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE - ); + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); } else { sci_base_state_machine_change_state( &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE - ); + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE); } - - status = SCI_SUCCESS; - } else { + } else status = SCI_FAILURE; - } return status; } @@ -932,6 +914,7 @@ static void scic_sds_remote_node_context_validate_context_buffer( struct scic_sds_remote_node_context *sci_rnc) { struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); + struct domain_device *dev = sci_dev_to_domain(sci_dev); union scu_remote_node_context *rnc_buffer; rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( @@ -942,7 +925,7 @@ static void scic_sds_remote_node_context_validate_context_buffer( rnc_buffer->ssp.is_valid = true; if (!sci_dev->is_direct_attached && - sci_dev->target_protocols.u.bits.attached_stp_target) { + (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP))) { scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_96); } else { @@ -1063,11 +1046,12 @@ static void scic_sds_remote_node_context_resuming_state_enter( struct sci_base_object *object) { struct scic_sds_remote_node_context *rnc; - struct smp_discover_response_protocols protocols; struct scic_sds_remote_device *sci_dev; + struct domain_device *dev; rnc = (struct scic_sds_remote_node_context *)object; sci_dev = rnc_to_dev(rnc); + dev = sci_dev_to_domain(sci_dev); SET_STATE_HANDLER( rnc, @@ -1081,13 +1065,10 @@ static void scic_sds_remote_node_context_resuming_state_enter( * resume because of a target reset we also need to update * the STPTLDARNI register with the RNi of the device */ - scic_remote_device_get_protocols(sci_dev, &protocols); - - if (protocols.u.bits.attached_stp_target == 1 && - sci_dev->is_direct_attached) { + if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) && + sci_dev->is_direct_attached) scic_sds_port_setup_transports(sci_dev->owning_port, rnc->remote_node_index); - } scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); } -- cgit v1.2.2 From 00d680ef84570bc7aea023772d27e85b0052004c Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Mon, 25 Apr 2011 14:29:29 -0700 Subject: isci: kill smp_discover_response An lldd need never look at the contents of an smp_discover_response frame. Kill the remaining locations where isci is looking at it: 1/ covering for expanders that do not set the stp_attached bit (already handled by sas_ex_discover_end_dev) 2/ an overkill method to notifiy the rest of the driver about remote_device sas addresses Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 285232fd5e63..59f878f11f33 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -124,8 +124,9 @@ static void scic_sds_remote_node_context_construct_buffer( rnc->ssp.logical_port_index = scic_sds_remote_device_get_port_index(sci_dev); - rnc->ssp.remote_sas_address_hi = SCIC_SWAP_DWORD(sci_dev->device_address.high); - rnc->ssp.remote_sas_address_lo = SCIC_SWAP_DWORD(sci_dev->device_address.low); + /* address is always big endian, destination is always little */ + rnc->ssp.remote_sas_address_hi = swab32(sci_dev->device_address.high); + rnc->ssp.remote_sas_address_lo = swab32(sci_dev->device_address.low); rnc->ssp.nexus_loss_timer_enable = true; rnc->ssp.check_bit = false; -- cgit v1.2.2 From a3d568f0dfbb6bc786df04ad13e0b401f80e614c Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 26 Apr 2011 09:41:52 -0700 Subject: isci: remove usage of sci_sas_address in scic_sds_remote_device The sas address can be retrieved from the domain device and then converted to the always little-endian format in the remote node context. Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 59f878f11f33..e83657d554b7 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -110,6 +110,7 @@ static void scic_sds_remote_node_context_construct_buffer( struct domain_device *dev = sci_dev_to_domain(sci_dev); union scu_remote_node_context *rnc; struct scic_sds_controller *scic; + __le64 sas_addr; scic = scic_sds_remote_device_get_controller(sci_dev); @@ -124,9 +125,10 @@ static void scic_sds_remote_node_context_construct_buffer( rnc->ssp.logical_port_index = scic_sds_remote_device_get_port_index(sci_dev); - /* address is always big endian, destination is always little */ - rnc->ssp.remote_sas_address_hi = swab32(sci_dev->device_address.high); - rnc->ssp.remote_sas_address_lo = swab32(sci_dev->device_address.low); + /* sas address is __be64, context ram format is __le64 */ + sas_addr = cpu_to_le64(SAS_ADDR(dev->sas_addr)); + rnc->ssp.remote_sas_address_hi = upper_32_bits(sas_addr); + rnc->ssp.remote_sas_address_lo = lower_32_bits(sas_addr); rnc->ssp.nexus_loss_timer_enable = true; rnc->ssp.check_bit = false; -- cgit v1.2.2 From 1f4fa1f958ca678ea021b95c2799b018b2cebc9c Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 26 Apr 2011 11:44:06 -0700 Subject: isci: remove scic_sds_remote_device_get_port_index Longer to type than the open-coded equivalent. Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index e83657d554b7..291df19f027b 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -108,22 +108,20 @@ static void scic_sds_remote_node_context_construct_buffer( { struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); struct domain_device *dev = sci_dev_to_domain(sci_dev); + int rni = sci_rnc->remote_node_index; union scu_remote_node_context *rnc; struct scic_sds_controller *scic; __le64 sas_addr; scic = scic_sds_remote_device_get_controller(sci_dev); - - rnc = scic_sds_controller_get_remote_node_context_buffer( - scic, sci_rnc->remote_node_index); + rnc = scic_sds_controller_get_remote_node_context_buffer(scic, rni); memset(rnc, 0, sizeof(union scu_remote_node_context) * scic_sds_remote_device_node_count(sci_dev)); - rnc->ssp.remote_node_index = sci_rnc->remote_node_index; + rnc->ssp.remote_node_index = rni; rnc->ssp.remote_node_port_width = sci_dev->device_port_width; - rnc->ssp.logical_port_index = - scic_sds_remote_device_get_port_index(sci_dev); + rnc->ssp.logical_port_index = sci_dev->owning_port->physical_port_index; /* sas address is __be64, context ram format is __le64 */ sas_addr = cpu_to_le64(SAS_ADDR(dev->sas_addr)); -- cgit v1.2.2 From 9a0fff7bf0ffd4f57fc71d8075a92008b606eb61 Mon Sep 17 00:00:00 2001 From: Maciej Patelczyk Date: Thu, 28 Apr 2011 22:06:01 +0000 Subject: isci: Removed struct sci_base_object from state machine. Changed any occurrence of struct sci_base_object into void. Signed-off-by: Maciej Patelczyk Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 22 ++++++++-------------- 1 file changed, 8 insertions(+), 14 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 291df19f027b..bc51ecf76b14 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -970,8 +970,7 @@ static void scic_sds_remote_node_context_invalidate_context_buffer( * * */ -static void scic_sds_remote_node_context_initial_state_enter( - struct sci_base_object *object) +static void scic_sds_remote_node_context_initial_state_enter(void *object) { struct scic_sds_remote_node_context *rnc; @@ -1001,8 +1000,7 @@ static void scic_sds_remote_node_context_initial_state_enter( * * */ -static void scic_sds_remote_node_context_posting_state_enter( - struct sci_base_object *object) +static void scic_sds_remote_node_context_posting_state_enter(void *object) { struct scic_sds_remote_node_context *sci_rnc; @@ -1022,8 +1020,7 @@ static void scic_sds_remote_node_context_posting_state_enter( * * */ -static void scic_sds_remote_node_context_invalidating_state_enter( - struct sci_base_object *object) +static void scic_sds_remote_node_context_invalidating_state_enter(void *object) { struct scic_sds_remote_node_context *rnc; @@ -1043,8 +1040,7 @@ static void scic_sds_remote_node_context_invalidating_state_enter( * * */ -static void scic_sds_remote_node_context_resuming_state_enter( - struct sci_base_object *object) +static void scic_sds_remote_node_context_resuming_state_enter(void *object) { struct scic_sds_remote_node_context *rnc; struct scic_sds_remote_device *sci_dev; @@ -1079,8 +1075,7 @@ static void scic_sds_remote_node_context_resuming_state_enter( * * */ -static void scic_sds_remote_node_context_ready_state_enter( - struct sci_base_object *object) +static void scic_sds_remote_node_context_ready_state_enter(void *object) { struct scic_sds_remote_node_context *rnc; @@ -1104,8 +1099,7 @@ static void scic_sds_remote_node_context_ready_state_enter( * * */ -static void scic_sds_remote_node_context_tx_suspended_state_enter( - struct sci_base_object *object) +static void scic_sds_remote_node_context_tx_suspended_state_enter(void *object) { struct scic_sds_remote_node_context *rnc; @@ -1126,7 +1120,7 @@ static void scic_sds_remote_node_context_tx_suspended_state_enter( * */ static void scic_sds_remote_node_context_tx_rx_suspended_state_enter( - struct sci_base_object *object) + void *object) { struct scic_sds_remote_node_context *rnc; @@ -1147,7 +1141,7 @@ static void scic_sds_remote_node_context_tx_rx_suspended_state_enter( * */ static void scic_sds_remote_node_context_await_suspension_state_enter( - struct sci_base_object *object) + void *object) { struct scic_sds_remote_node_context *rnc; -- cgit v1.2.2 From af23e85737253624cde84704008be40355ff6922 Mon Sep 17 00:00:00 2001 From: Maciej Patelczyk Date: Thu, 28 Apr 2011 22:06:26 +0000 Subject: isci: Removed sci_base_object from scic_sds_remote_node_context. The 'struct sci_base_object' was removed from the struct scic_sds_remote_node_context. Signed-off-by: Maciej Patelczyk Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 33 +++++++++------------------------ 1 file changed, 9 insertions(+), 24 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index bc51ecf76b14..49d2dc5374f4 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -972,9 +972,7 @@ static void scic_sds_remote_node_context_invalidate_context_buffer( */ static void scic_sds_remote_node_context_initial_state_enter(void *object) { - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; + struct scic_sds_remote_node_context *rnc = object; SET_STATE_HANDLER( rnc, @@ -1002,9 +1000,7 @@ static void scic_sds_remote_node_context_initial_state_enter(void *object) */ static void scic_sds_remote_node_context_posting_state_enter(void *object) { - struct scic_sds_remote_node_context *sci_rnc; - - sci_rnc = (struct scic_sds_remote_node_context *)object; + struct scic_sds_remote_node_context *sci_rnc = object; SET_STATE_HANDLER( sci_rnc, @@ -1022,9 +1018,7 @@ static void scic_sds_remote_node_context_posting_state_enter(void *object) */ static void scic_sds_remote_node_context_invalidating_state_enter(void *object) { - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; + struct scic_sds_remote_node_context *rnc = object; SET_STATE_HANDLER( rnc, @@ -1042,11 +1036,10 @@ static void scic_sds_remote_node_context_invalidating_state_enter(void *object) */ static void scic_sds_remote_node_context_resuming_state_enter(void *object) { - struct scic_sds_remote_node_context *rnc; + struct scic_sds_remote_node_context *rnc = object; struct scic_sds_remote_device *sci_dev; struct domain_device *dev; - rnc = (struct scic_sds_remote_node_context *)object; sci_dev = rnc_to_dev(rnc); dev = sci_dev_to_domain(sci_dev); @@ -1077,9 +1070,7 @@ static void scic_sds_remote_node_context_resuming_state_enter(void *object) */ static void scic_sds_remote_node_context_ready_state_enter(void *object) { - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; + struct scic_sds_remote_node_context *rnc = object; SET_STATE_HANDLER( rnc, @@ -1101,9 +1092,7 @@ static void scic_sds_remote_node_context_ready_state_enter(void *object) */ static void scic_sds_remote_node_context_tx_suspended_state_enter(void *object) { - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; + struct scic_sds_remote_node_context *rnc = object; SET_STATE_HANDLER( rnc, @@ -1122,9 +1111,7 @@ static void scic_sds_remote_node_context_tx_suspended_state_enter(void *object) static void scic_sds_remote_node_context_tx_rx_suspended_state_enter( void *object) { - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; + struct scic_sds_remote_node_context *rnc = object; SET_STATE_HANDLER( rnc, @@ -1143,9 +1130,7 @@ static void scic_sds_remote_node_context_tx_rx_suspended_state_enter( static void scic_sds_remote_node_context_await_suspension_state_enter( void *object) { - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; + struct scic_sds_remote_node_context *rnc = object; SET_STATE_HANDLER( rnc, @@ -1193,7 +1178,7 @@ void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context sci_base_state_machine_construct( &rnc->state_machine, - &rnc->parent, + rnc, scic_sds_remote_node_context_state_table, SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE ); -- cgit v1.2.2 From a98a7426bc91700ac8613701daf8470efe2ad2d2 Mon Sep 17 00:00:00 2001 From: Jacek Danecki Date: Tue, 3 May 2011 04:21:07 +0000 Subject: isci: rnc state machine table c99 conversion This makes the subsequent patches to delete rnc->state_handler more clear. Signed-off-by: Jacek Danecki Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 124 +++++++++++++++----------------- 1 file changed, 57 insertions(+), 67 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 49d2dc5374f4..5e85a18a06de 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -788,80 +788,70 @@ static enum sci_status scic_sds_remote_node_context_await_suspension_state_event /* --------------------------------------------------------------------------- */ static struct scic_sds_remote_node_context_handlers -scic_sds_remote_node_context_state_handler_table[ - SCIC_SDS_REMOTE_NODE_CONTEXT_MAX_STATES] = -{ - /* SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE */ - { - scic_sds_remote_node_context_default_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_initial_state_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_default_start_task_handler, - scic_sds_remote_node_context_default_event_handler +scic_sds_remote_node_context_state_handler_table[] = { + [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { + .destruct_handler = scic_sds_remote_node_context_default_destruct_handler, + .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, + .resume_handler = scic_sds_remote_node_context_initial_state_resume_handler, + .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, + .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, + .event_handler = scic_sds_remote_node_context_default_event_handler }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_continue_to_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_default_start_task_handler, - scic_sds_remote_node_context_posting_state_event_handler + [SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = { + .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, + .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, + .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, + .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, + .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, + .event_handler = scic_sds_remote_node_context_posting_state_event_handler }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE */ - { - scic_sds_remote_node_context_invalidating_state_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_continue_to_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_default_start_task_handler, - scic_sds_remote_node_context_invalidating_state_event_handler + [SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = { + .destruct_handler = scic_sds_remote_node_context_invalidating_state_destruct_handler, + .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, + .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, + .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, + .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, + .event_handler = scic_sds_remote_node_context_invalidating_state_event_handler }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_continue_to_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_success_start_task_handler, - scic_sds_remote_node_context_resuming_state_event_handler + [SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = { + .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, + .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, + .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, + .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, + .start_task_handler = scic_sds_remote_node_context_success_start_task_handler, + .event_handler = scic_sds_remote_node_context_resuming_state_event_handler }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_ready_state_suspend_handler, - scic_sds_remote_node_context_default_resume_handler, - scic_sds_remote_node_context_ready_state_start_io_handler, - scic_sds_remote_node_context_success_start_task_handler, - scic_sds_remote_node_context_ready_state_event_handler + [SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = { + .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, + .suspend_handler = scic_sds_remote_node_context_ready_state_suspend_handler, + .resume_handler = scic_sds_remote_node_context_default_resume_handler, + .start_io_handler = scic_sds_remote_node_context_ready_state_start_io_handler, + .start_task_handler = scic_sds_remote_node_context_success_start_task_handler, + .event_handler = scic_sds_remote_node_context_ready_state_event_handler }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_tx_suspended_state_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_suspended_start_task_handler, - scic_sds_remote_node_context_default_event_handler + [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = { + .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, + .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, + .resume_handler = scic_sds_remote_node_context_tx_suspended_state_resume_handler, + .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, + .start_task_handler = scic_sds_remote_node_context_suspended_start_task_handler, + .event_handler = scic_sds_remote_node_context_default_event_handler }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_suspended_start_task_handler, - scic_sds_remote_node_context_default_event_handler + [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { + .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, + .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, + .resume_handler = scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler, + .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, + .start_task_handler = scic_sds_remote_node_context_suspended_start_task_handler, + .event_handler = scic_sds_remote_node_context_default_event_handler }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_await_suspension_state_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_await_suspension_state_start_task_handler, - scic_sds_remote_node_context_await_suspension_state_event_handler + [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { + .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, + .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, + .resume_handler = scic_sds_remote_node_context_await_suspension_state_resume_handler, + .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, + .start_task_handler = scic_sds_remote_node_context_await_suspension_state_start_task_handler, + .event_handler = scic_sds_remote_node_context_await_suspension_state_event_handler } }; -- cgit v1.2.2 From cc9203bf381a465cd115762b9cf7c9a313c874bc Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sun, 8 May 2011 17:34:44 -0700 Subject: isci: move core/controller to host Now that the data structures are unified unify the implementation in host.[ch] and cleanup namespace pollution. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 5e85a18a06de..af4759383db4 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -53,12 +53,11 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include "host.h" #include "sci_base_state_machine.h" -#include "scic_sds_controller.h" #include "scic_sds_port.h" #include "remote_device.h" #include "remote_node_context.h" -#include "sci_environment.h" #include "sci_util.h" #include "scu_event_codes.h" #include "scu_task_context.h" -- cgit v1.2.2 From 3bff9d54ecba84e538da822349a9a6fd6e534539 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sun, 8 May 2011 22:15:10 -0700 Subject: isci: uplevel state machine unify core/sci_base_state.h and core/sci_base_state_machine.[ch] into state_machine.[ch] Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index af4759383db4..5891f3d50177 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -54,7 +54,7 @@ */ #include "host.h" -#include "sci_base_state_machine.h" +#include "state_machine.h" #include "scic_sds_port.h" #include "remote_device.h" #include "remote_node_context.h" -- cgit v1.2.2 From f1f52e75939b56c40b3d153ae99faf2720250242 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 10 May 2011 02:28:45 -0700 Subject: isci: uplevel request infrastructure * Consolidate tiny header files * Move files out of core/ (drop core/scic_sds_ prefix) * Merge core/scic_sds_request.[ch] into request.[ch] * Cleanup request.c namespace (clean forward declarations and global namespace pollution) Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 5891f3d50177..35231e7407b1 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -58,7 +58,6 @@ #include "scic_sds_port.h" #include "remote_device.h" #include "remote_node_context.h" -#include "sci_util.h" #include "scu_event_codes.h" #include "scu_task_context.h" -- cgit v1.2.2 From e2f8db509fdd354bb7a68c86515e9d2d8909ccc9 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 10 May 2011 02:28:46 -0700 Subject: isci: uplevel port infrastructure * Move port configuration agent implementation * Merge core/scic_sds_port.[ch] into port.[ch] Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 35231e7407b1..aef258b959f8 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -55,7 +55,6 @@ #include "host.h" #include "state_machine.h" -#include "scic_sds_port.h" #include "remote_device.h" #include "remote_node_context.h" #include "scu_event_codes.h" -- cgit v1.2.2 From 338e386d12c2440e39c987d35fda403d319a79a0 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 12 May 2011 07:46:59 -0700 Subject: isci: unify rnc event handlers Unify rnc event handlers and delete the state handler. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 365 ++++++++++---------------------- 1 file changed, 108 insertions(+), 257 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index aef258b959f8..9f2407f0f5a6 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -299,21 +299,6 @@ static enum sci_status scic_sds_remote_node_context_default_start_task_handler( return SCI_FAILURE; } -static enum sci_status scic_sds_remote_node_context_default_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to process " - "event 0x%x while in wrong state %d\n", - __func__, - sci_rnc, - event_code, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - return SCI_FAILURE_INVALID_STATE; -} - /** * * @sci_rnc: The rnc for which the task request is targeted. @@ -383,41 +368,6 @@ static enum sci_status scic_sds_remote_node_context_initial_state_resume_handler return SCI_FAILURE_INVALID_STATE; } -/* --------------------------------------------------------------------------- */ - -static enum sci_status scic_sds_remote_node_context_posting_state_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - enum sci_status status; - - switch (scu_get_event_code(event_code)) { - case SCU_EVENT_POST_RNC_COMPLETE: - status = SCI_SUCCESS; - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE - ); - break; - - default: - status = SCI_FAILURE; - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to " - "process unexpected event 0x%x while in posting " - "state\n", - __func__, - sci_rnc, - event_code); - break; - } - - return status; -} - -/* --------------------------------------------------------------------------- */ - static enum sci_status scic_sds_remote_node_context_invalidating_state_destruct_handler( struct scic_sds_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback callback, @@ -430,110 +380,6 @@ static enum sci_status scic_sds_remote_node_context_invalidating_state_destruct_ return SCI_SUCCESS; } -static enum sci_status scic_sds_remote_node_context_invalidating_state_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - enum sci_status status; - - if (scu_get_event_code(event_code) == SCU_EVENT_POST_RNC_INVALIDATE_COMPLETE) { - status = SCI_SUCCESS; - - if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL) { - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE - ); - } else { - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE - ); - } - } else { - switch (scu_get_event_type(event_code)) { - case SCU_EVENT_TYPE_RNC_SUSPEND_TX: - case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: - /* - * We really dont care if the hardware is going to suspend - * the device since it's being invalidated anyway */ - dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p was " - "suspeneded by hardware while being " - "invalidated.\n", - __func__, - sci_rnc); - status = SCI_SUCCESS; - break; - - default: - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p " - "requested to process event 0x%x while " - "in state %d.\n", - __func__, - sci_rnc, - event_code, - sci_base_state_machine_get_state( - &sci_rnc->state_machine)); - status = SCI_FAILURE; - break; - } - } - - return status; -} - -/* --------------------------------------------------------------------------- */ - - -static enum sci_status scic_sds_remote_node_context_resuming_state_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - enum sci_status status; - - if (scu_get_event_code(event_code) == SCU_EVENT_POST_RCN_RELEASE) { - status = SCI_SUCCESS; - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE - ); - } else { - switch (scu_get_event_type(event_code)) { - case SCU_EVENT_TYPE_RNC_SUSPEND_TX: - case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: - /* - * We really dont care if the hardware is going to suspend - * the device since it's being resumed anyway */ - dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p was " - "suspeneded by hardware while being resumed.\n", - __func__, - sci_rnc); - status = SCI_SUCCESS; - break; - - default: - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested " - "to process event 0x%x while in state %d.\n", - __func__, - sci_rnc, - event_code, - sci_base_state_machine_get_state( - &sci_rnc->state_machine)); - status = SCI_FAILURE; - break; - } - } - - return status; -} - -/* --------------------------------------------------------------------------- */ - /** * * @sci_rnc: The remote node context object being suspended. @@ -582,53 +428,6 @@ static enum sci_status scic_sds_remote_node_context_ready_state_start_io_handler return SCI_SUCCESS; } - -static enum sci_status scic_sds_remote_node_context_ready_state_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - enum sci_status status; - - switch (scu_get_event_type(event_code)) { - case SCU_EVENT_TL_RNC_SUSPEND_TX: - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE - ); - - sci_rnc->suspension_code = scu_get_event_specifier(event_code); - status = SCI_SUCCESS; - break; - - case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE - ); - - sci_rnc->suspension_code = scu_get_event_specifier(event_code); - status = SCI_SUCCESS; - break; - - default: - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to " - "process event 0x%x while in state %d.\n", - __func__, - sci_rnc, - event_code, - sci_base_state_machine_get_state( - &sci_rnc->state_machine)); - - status = SCI_FAILURE; - break; - } - - return status; -} - -/* --------------------------------------------------------------------------- */ - static enum sci_status scic_sds_remote_node_context_tx_suspended_state_resume_handler( struct scic_sds_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback callback, @@ -738,61 +537,13 @@ static enum sci_status scic_sds_remote_node_context_await_suspension_state_start return SCI_SUCCESS; } -static enum sci_status scic_sds_remote_node_context_await_suspension_state_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - enum sci_status status; - - switch (scu_get_event_type(event_code)) { - case SCU_EVENT_TL_RNC_SUSPEND_TX: - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE - ); - - sci_rnc->suspension_code = scu_get_event_specifier(event_code); - status = SCI_SUCCESS; - break; - - case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE - ); - - sci_rnc->suspension_code = scu_get_event_specifier(event_code); - status = SCI_SUCCESS; - break; - - default: - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to " - "process event 0x%x while in state %d.\n", - __func__, - sci_rnc, - event_code, - sci_base_state_machine_get_state( - &sci_rnc->state_machine)); - - status = SCI_FAILURE; - break; - } - - return status; -} - -/* --------------------------------------------------------------------------- */ - -static struct scic_sds_remote_node_context_handlers -scic_sds_remote_node_context_state_handler_table[] = { +static struct scic_sds_remote_node_context_handlers scic_sds_remote_node_context_state_handler_table[] = { [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { .destruct_handler = scic_sds_remote_node_context_default_destruct_handler, .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, .resume_handler = scic_sds_remote_node_context_initial_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, - .event_handler = scic_sds_remote_node_context_default_event_handler }, [SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = { .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, @@ -800,7 +551,6 @@ scic_sds_remote_node_context_state_handler_table[] = { .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, - .event_handler = scic_sds_remote_node_context_posting_state_event_handler }, [SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = { .destruct_handler = scic_sds_remote_node_context_invalidating_state_destruct_handler, @@ -808,7 +558,6 @@ scic_sds_remote_node_context_state_handler_table[] = { .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, - .event_handler = scic_sds_remote_node_context_invalidating_state_event_handler }, [SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = { .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, @@ -816,7 +565,6 @@ scic_sds_remote_node_context_state_handler_table[] = { .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_success_start_task_handler, - .event_handler = scic_sds_remote_node_context_resuming_state_event_handler }, [SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = { .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, @@ -824,7 +572,6 @@ scic_sds_remote_node_context_state_handler_table[] = { .resume_handler = scic_sds_remote_node_context_default_resume_handler, .start_io_handler = scic_sds_remote_node_context_ready_state_start_io_handler, .start_task_handler = scic_sds_remote_node_context_success_start_task_handler, - .event_handler = scic_sds_remote_node_context_ready_state_event_handler }, [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = { .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, @@ -832,7 +579,6 @@ scic_sds_remote_node_context_state_handler_table[] = { .resume_handler = scic_sds_remote_node_context_tx_suspended_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_suspended_start_task_handler, - .event_handler = scic_sds_remote_node_context_default_event_handler }, [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, @@ -840,7 +586,6 @@ scic_sds_remote_node_context_state_handler_table[] = { .resume_handler = scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_suspended_start_task_handler, - .event_handler = scic_sds_remote_node_context_default_event_handler }, [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, @@ -848,7 +593,6 @@ scic_sds_remote_node_context_state_handler_table[] = { .resume_handler = scic_sds_remote_node_context_await_suspension_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_await_suspension_state_start_task_handler, - .event_handler = scic_sds_remote_node_context_await_suspension_state_event_handler } }; @@ -1172,3 +916,110 @@ void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context sci_base_state_machine_start(&rnc->state_machine); } + +enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum scis_sds_remote_node_context_states state; + + state = sci_rnc->state_machine.current_state_id; + switch (state) { + case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE: + switch (scu_get_event_code(event_code)) { + case SCU_EVENT_POST_RNC_COMPLETE: + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE); + break; + default: + goto out; + } + break; + case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE: + if (scu_get_event_code(event_code) == SCU_EVENT_POST_RNC_INVALIDATE_COMPLETE) { + if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL) + state = SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE; + else + state = SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE; + sci_base_state_machine_change_state(&sci_rnc->state_machine, + state); + } else { + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TYPE_RNC_SUSPEND_TX: + case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: + /* We really dont care if the hardware is going to suspend + * the device since it's being invalidated anyway */ + dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p was " + "suspeneded by hardware while being " + "invalidated.\n", __func__, sci_rnc); + break; + default: + goto out; + } + } + break; + case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: + if (scu_get_event_code(event_code) == SCU_EVENT_POST_RCN_RELEASE) { + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE); + } else { + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TYPE_RNC_SUSPEND_TX: + case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: + /* We really dont care if the hardware is going to suspend + * the device since it's being resumed anyway */ + dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p was " + "suspeneded by hardware while being resumed.\n", + __func__, sci_rnc); + break; + default: + goto out; + } + } + break; + case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE: + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TL_RNC_SUSPEND_TX: + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE); + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + break; + case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE); + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + break; + default: + goto out; + } + break; + case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TL_RNC_SUSPEND_TX: + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE); + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + break; + case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE); + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + break; + default: + goto out; + } + break; + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: invalid state %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } + return SCI_SUCCESS; + + out: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: code: %#x state: %d\n", __func__, event_code, state); + return SCI_FAILURE; + +} -- cgit v1.2.2 From c845ae96bcb1625a093003248ffaf13b92a81ac2 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 12 May 2011 08:26:56 -0700 Subject: isci: unify rnc destruct handlers Unify rnc destruct handlers and delete the state handler. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 106 +++++++++++--------------------- 1 file changed, 36 insertions(+), 70 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 9f2407f0f5a6..769a3fc6ec4b 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -218,26 +218,6 @@ static enum sci_status scic_sds_remote_node_context_continue_to_resume_handler( return SCI_FAILURE_INVALID_STATE; } -/* --------------------------------------------------------------------------- */ - -static enum sci_status scic_sds_remote_node_context_default_destruct_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to stop while " - "in unexpected state %d\n", - __func__, - sci_rnc, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - /* - * We have decided that the destruct request on the remote node context can not fail - * since it is either in the initial/destroyed state or is can be destroyed. */ - return SCI_SUCCESS; -} - static enum sci_status scic_sds_remote_node_context_default_suspend_handler( struct scic_sds_remote_node_context *sci_rnc, u32 suspend_type, @@ -315,36 +295,6 @@ static enum sci_status scic_sds_remote_node_context_success_start_task_handler( return SCI_SUCCESS; } -/** - * - * @sci_rnc: - * @callback: - * @callback_parameter: - * - * This method handles destruct calls from the various state handlers. The - * remote node context can be requested to destroy from any state. If there was - * a user callback it is always replaced with the request to destroy user - * callback. enum sci_status - */ -static enum sci_status scic_sds_remote_node_context_general_destruct_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - scic_sds_remote_node_context_setup_to_destory( - sci_rnc, callback, callback_parameter - ); - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE - ); - - return SCI_SUCCESS; -} - -/* --------------------------------------------------------------------------- */ - static enum sci_status scic_sds_remote_node_context_initial_state_resume_handler( struct scic_sds_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback callback, @@ -368,18 +318,6 @@ static enum sci_status scic_sds_remote_node_context_initial_state_resume_handler return SCI_FAILURE_INVALID_STATE; } -static enum sci_status scic_sds_remote_node_context_invalidating_state_destruct_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - scic_sds_remote_node_context_setup_to_destory( - sci_rnc, callback, callback_parameter - ); - - return SCI_SUCCESS; -} - /** * * @sci_rnc: The remote node context object being suspended. @@ -539,56 +477,48 @@ static enum sci_status scic_sds_remote_node_context_await_suspension_state_start static struct scic_sds_remote_node_context_handlers scic_sds_remote_node_context_state_handler_table[] = { [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { - .destruct_handler = scic_sds_remote_node_context_default_destruct_handler, .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, .resume_handler = scic_sds_remote_node_context_initial_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = { - .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = { - .destruct_handler = scic_sds_remote_node_context_invalidating_state_destruct_handler, .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = { - .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_success_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = { - .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, .suspend_handler = scic_sds_remote_node_context_ready_state_suspend_handler, .resume_handler = scic_sds_remote_node_context_default_resume_handler, .start_io_handler = scic_sds_remote_node_context_ready_state_start_io_handler, .start_task_handler = scic_sds_remote_node_context_success_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = { - .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, .resume_handler = scic_sds_remote_node_context_tx_suspended_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_suspended_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { - .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, .resume_handler = scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_suspended_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { - .destruct_handler = scic_sds_remote_node_context_general_destruct_handler, .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, .resume_handler = scic_sds_remote_node_context_await_suspension_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, @@ -1023,3 +953,39 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot return SCI_FAILURE; } + +enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback cb_fn, + void *cb_p) +{ + enum scis_sds_remote_node_context_states state; + + state = sci_rnc->state_machine.current_state_id; + switch (state) { + case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE: + scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); + return SCI_SUCCESS; + case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE: + case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: + case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE: + case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE: + case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE: + case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE); + return SCI_SUCCESS; + case SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: invalid state %d\n", __func__, state); + /* We have decided that the destruct request on the remote node context + * can not fail since it is either in the initial/destroyed state or is + * can be destroyed. + */ + return SCI_SUCCESS; + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: invalid state %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } +} -- cgit v1.2.2 From ed3efb7784cb0772558e9cc9440bd6c9a3139be4 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 12 May 2011 08:50:23 -0700 Subject: isci: unify rnc suspend/resume handlers Unify rnc suspend/resume handlers and delete the state handlers. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 306 ++++++++++---------------------- 1 file changed, 96 insertions(+), 210 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 769a3fc6ec4b..095d61288c3b 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -195,60 +195,6 @@ static void scic_sds_remote_node_context_setup_to_destory( sci_rnc->user_cookie = callback_parameter; } -/** - * - * @sci_rnc: - * @callback: - * - * This method will continue to resume a remote node context. This is used in - * the states where a resume is requested while a resume is in progress. - */ -static enum sci_status scic_sds_remote_node_context_continue_to_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) { - sci_rnc->user_callback = callback; - sci_rnc->user_cookie = callback_parameter; - - return SCI_SUCCESS; - } - - return SCI_FAILURE_INVALID_STATE; -} - -static enum sci_status scic_sds_remote_node_context_default_suspend_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 suspend_type, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to suspend " - "while in wrong state %d\n", - __func__, - sci_rnc, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - return SCI_FAILURE_INVALID_STATE; -} - -static enum sci_status scic_sds_remote_node_context_default_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to resume " - "while in wrong state %d\n", - __func__, - sci_rnc, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - return SCI_FAILURE_INVALID_STATE; -} - static enum sci_status scic_sds_remote_node_context_default_start_io_handler( struct scic_sds_remote_node_context *sci_rnc, struct scic_sds_request *sci_req) @@ -295,61 +241,6 @@ static enum sci_status scic_sds_remote_node_context_success_start_task_handler( return SCI_SUCCESS; } -static enum sci_status scic_sds_remote_node_context_initial_state_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - if (sci_rnc->remote_node_index != SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { - scic_sds_remote_node_context_setup_to_resume( - sci_rnc, callback, callback_parameter - ); - - scic_sds_remote_node_context_construct_buffer(sci_rnc); - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE - ); - - return SCI_SUCCESS; - } - - return SCI_FAILURE_INVALID_STATE; -} - -/** - * - * @sci_rnc: The remote node context object being suspended. - * @callback: The callback when the suspension is complete. - * @callback_parameter: The parameter that is to be passed into the callback. - * - * This method will handle the suspend requests from the ready state. - * SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_node_context_ready_state_suspend_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 suspend_type, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - sci_rnc->user_callback = callback; - sci_rnc->user_cookie = callback_parameter; - sci_rnc->suspension_code = suspend_type; - - if (suspend_type == SCI_SOFTWARE_SUSPENSION) { - scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), - SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX); - } - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE - ); - - return SCI_SUCCESS; -} - /** * * @sci_rnc: The rnc for which the io request is targeted. @@ -366,39 +257,6 @@ static enum sci_status scic_sds_remote_node_context_ready_state_start_io_handler return SCI_SUCCESS; } -static enum sci_status scic_sds_remote_node_context_tx_suspended_state_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); - struct domain_device *dev = sci_dev_to_domain(sci_dev); - enum sci_status status = SCI_SUCCESS; - - scic_sds_remote_node_context_setup_to_resume(sci_rnc, callback, - callback_parameter); - - /* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */ - if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev)) - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); - else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { - if (sci_dev->is_direct_attached) { - /* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */ - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); - } else { - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE); - } - } else - status = SCI_FAILURE; - - return status; -} - /** * * @sci_rnc: The remote node context which is to receive the task request. @@ -419,44 +277,6 @@ static enum sci_status scic_sds_remote_node_context_suspended_start_task_handler return SCI_SUCCESS; } -/* --------------------------------------------------------------------------- */ - -static enum sci_status scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - scic_sds_remote_node_context_setup_to_resume( - sci_rnc, callback, callback_parameter - ); - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE - ); - - return SCI_FAILURE_INVALID_STATE; -} - -/* --------------------------------------------------------------------------- */ - -/** - * - * - * - */ -static enum sci_status scic_sds_remote_node_context_await_suspension_state_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - scic_sds_remote_node_context_setup_to_resume( - sci_rnc, callback, callback_parameter - ); - - return SCI_SUCCESS; -} - /** * * @sci_rnc: The remote node context which is to receive the task request. @@ -477,50 +297,34 @@ static enum sci_status scic_sds_remote_node_context_await_suspension_state_start static struct scic_sds_remote_node_context_handlers scic_sds_remote_node_context_state_handler_table[] = { [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { - .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, - .resume_handler = scic_sds_remote_node_context_initial_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = { - .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, - .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = { - .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, - .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = { - .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, - .resume_handler = scic_sds_remote_node_context_continue_to_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_success_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = { - .suspend_handler = scic_sds_remote_node_context_ready_state_suspend_handler, - .resume_handler = scic_sds_remote_node_context_default_resume_handler, .start_io_handler = scic_sds_remote_node_context_ready_state_start_io_handler, .start_task_handler = scic_sds_remote_node_context_success_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = { - .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, - .resume_handler = scic_sds_remote_node_context_tx_suspended_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_suspended_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { - .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, - .resume_handler = scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_suspended_start_task_handler, }, [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { - .suspend_handler = scic_sds_remote_node_context_default_suspend_handler, - .resume_handler = scic_sds_remote_node_context_await_suspension_state_resume_handler, .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, .start_task_handler = scic_sds_remote_node_context_await_suspension_state_start_task_handler, } @@ -548,21 +352,11 @@ static void scic_sds_remote_node_context_notify_user( } } -/** - * - * - * This method will continue the remote node context state machine by - * requesting to resume the remote node context state machine from its current - * state. - */ -static void scic_sds_remote_node_context_continue_state_transitions( - struct scic_sds_remote_node_context *rnc) +static void scic_sds_remote_node_context_continue_state_transitions(struct scic_sds_remote_node_context *rnc) { - if (rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) { - rnc->state_handlers->resume_handler( - rnc, rnc->user_callback, rnc->user_cookie - ); - } + if (rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) + scic_sds_remote_node_context_resume(rnc, rnc->user_callback, + rnc->user_cookie); } /** @@ -989,3 +783,95 @@ enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_nod return SCI_FAILURE_INVALID_STATE; } } + +enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node_context *sci_rnc, + u32 suspend_type, + scics_sds_remote_node_context_callback cb_fn, + void *cb_p) +{ + enum scis_sds_remote_node_context_states state; + + state = sci_rnc->state_machine.current_state_id; + if (state != SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: invalid state %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } + + sci_rnc->user_callback = cb_fn; + sci_rnc->user_cookie = cb_p; + sci_rnc->suspension_code = suspend_type; + + if (suspend_type == SCI_SOFTWARE_SUSPENSION) { + scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), + SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX); + } + + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE); + return SCI_SUCCESS; +} + +enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback cb_fn, + void *cb_p) +{ + enum scis_sds_remote_node_context_states state; + + state = sci_rnc->state_machine.current_state_id; + switch (state) { + case SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE: + if (sci_rnc->remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) + return SCI_FAILURE_INVALID_STATE; + + scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + scic_sds_remote_node_context_construct_buffer(sci_rnc); + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE); + return SCI_SUCCESS; + case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE: + case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE: + case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: + if (sci_rnc->destination_state != SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) + return SCI_FAILURE_INVALID_STATE; + + sci_rnc->user_callback = cb_fn; + sci_rnc->user_cookie = cb_p; + return SCI_SUCCESS; + case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE: { + struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); + struct domain_device *dev = sci_dev_to_domain(sci_dev); + + scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + + /* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */ + if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev)) + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); + else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { + if (sci_dev->is_direct_attached) { + /* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */ + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); + } else { + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE); + } + } else + return SCI_FAILURE; + return SCI_SUCCESS; + } + case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE: + scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + sci_base_state_machine_change_state(&sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); + return SCI_FAILURE_INVALID_STATE; + case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + return SCI_SUCCESS; + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: invalid state %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } +} -- cgit v1.2.2 From f34d9e5d3f34f395a497a8747316b04ef3e865b1 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 12 May 2011 09:27:52 -0700 Subject: isci: unify rnc start{io|task} handlers Unify rnc start{io|task} handlers and delete the state handler infrastructure. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 306 +++++--------------------------- 1 file changed, 43 insertions(+), 263 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 095d61288c3b..82507bd228d4 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -176,15 +176,6 @@ static void scic_sds_remote_node_context_setup_to_resume( } } -/** - * - * @sci_rnc: - * @callback: - * @callback_parameter: - * - * This method will setup the remote node context object so it will transistion - * to its final state. none - */ static void scic_sds_remote_node_context_setup_to_destory( struct scic_sds_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback callback, @@ -195,146 +186,6 @@ static void scic_sds_remote_node_context_setup_to_destory( sci_rnc->user_cookie = callback_parameter; } -static enum sci_status scic_sds_remote_node_context_default_start_io_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to start io " - "0x%p while in wrong state %d\n", - __func__, - sci_rnc, - sci_req, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; -} - -static enum sci_status scic_sds_remote_node_context_default_start_task_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to start " - "task 0x%p while in wrong state %d\n", - __func__, - sci_rnc, - sci_req, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - return SCI_FAILURE; -} - -/** - * - * @sci_rnc: The rnc for which the task request is targeted. - * @sci_req: The request which is going to be started. - * - * This method determines if the task request can be started by the SCU - * hardware. When the RNC is in the ready state any task can be started. - * enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_node_context_success_start_task_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - return SCI_SUCCESS; -} - -/** - * - * @sci_rnc: The rnc for which the io request is targeted. - * @sci_req: The request which is going to be started. - * - * This method determines if the io request can be started by the SCU hardware. - * When the RNC is in the ready state any io request can be started. enum sci_status - * SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_node_context_ready_state_start_io_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - return SCI_SUCCESS; -} - -/** - * - * @sci_rnc: The remote node context which is to receive the task request. - * @sci_req: The task request to be transmitted to to the remote target - * device. - * - * This method will report a success or failure attempt to start a new task - * request to the hardware. Since all task requests are sent on the high - * priority queue they can be sent when the RCN is in a TX suspend state. - * enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_node_context_suspended_start_task_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - scic_sds_remote_node_context_resume(sci_rnc, NULL, NULL); - - return SCI_SUCCESS; -} - -/** - * - * @sci_rnc: The remote node context which is to receive the task request. - * @sci_req: The task request to be transmitted to to the remote target - * device. - * - * This method will report a success or failure attempt to start a new task - * request to the hardware. Since all task requests are sent on the high - * priority queue they can be sent when the RCN is in a TX suspend state. - * enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_node_context_await_suspension_state_start_task_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - return SCI_SUCCESS; -} - -static struct scic_sds_remote_node_context_handlers scic_sds_remote_node_context_state_handler_table[] = { - [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { - .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, - .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = { - .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, - .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = { - .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, - .start_task_handler = scic_sds_remote_node_context_default_start_task_handler, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = { - .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, - .start_task_handler = scic_sds_remote_node_context_success_start_task_handler, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = { - .start_io_handler = scic_sds_remote_node_context_ready_state_start_io_handler, - .start_task_handler = scic_sds_remote_node_context_success_start_task_handler, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = { - .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, - .start_task_handler = scic_sds_remote_node_context_suspended_start_task_handler, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { - .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, - .start_task_handler = scic_sds_remote_node_context_suspended_start_task_handler, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { - .start_io_handler = scic_sds_remote_node_context_default_start_io_handler, - .start_task_handler = scic_sds_remote_node_context_await_suspension_state_start_task_handler, - } -}; - -/* - * ***************************************************************************** - * * REMOTE NODE CONTEXT PRIVATE METHODS - * ***************************************************************************** */ - /** * * @@ -415,80 +266,34 @@ static void scic_sds_remote_node_context_invalidate_context_buffer( SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE); } -/* - * ***************************************************************************** - * * REMOTE NODE CONTEXT STATE ENTER AND EXIT METHODS - * ***************************************************************************** */ - -/** - * - * - * - */ static void scic_sds_remote_node_context_initial_state_enter(void *object) { struct scic_sds_remote_node_context *rnc = object; + struct sci_base_state_machine *sm = &rnc->state_machine; - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE - ); - - /* - * Check to see if we have gotten back to the initial state because someone - * requested to destroy the remote node context object. */ - if ( - rnc->state_machine.previous_state_id - == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE - ) { + /* Check to see if we have gotten back to the initial state because + * someone requested to destroy the remote node context object. + */ + if (sm->previous_state_id == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE) { rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - scic_sds_remote_node_context_notify_user(rnc); } } -/** - * - * - * - */ static void scic_sds_remote_node_context_posting_state_enter(void *object) { struct scic_sds_remote_node_context *sci_rnc = object; - SET_STATE_HANDLER( - sci_rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE - ); - scic_sds_remote_node_context_validate_context_buffer(sci_rnc); } -/** - * - * - * - */ static void scic_sds_remote_node_context_invalidating_state_enter(void *object) { struct scic_sds_remote_node_context *rnc = object; - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE - ); - scic_sds_remote_node_context_invalidate_context_buffer(rnc); } -/** - * - * - * - */ static void scic_sds_remote_node_context_resuming_state_enter(void *object) { struct scic_sds_remote_node_context *rnc = object; @@ -498,12 +303,6 @@ static void scic_sds_remote_node_context_resuming_state_enter(void *object) sci_dev = rnc_to_dev(rnc); dev = sci_dev_to_domain(sci_dev); - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE - ); - /* * For direct attached SATA devices we need to clear the TLCR * NCQ to TCi tag mapping on the phy and in cases where we @@ -518,84 +317,31 @@ static void scic_sds_remote_node_context_resuming_state_enter(void *object) scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); } -/** - * - * - * - */ static void scic_sds_remote_node_context_ready_state_enter(void *object) { struct scic_sds_remote_node_context *rnc = object; - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE - ); - rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - if (rnc->user_callback != NULL) { + if (rnc->user_callback) scic_sds_remote_node_context_notify_user(rnc); - } } -/** - * - * - * - */ static void scic_sds_remote_node_context_tx_suspended_state_enter(void *object) { struct scic_sds_remote_node_context *rnc = object; - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE - ); - scic_sds_remote_node_context_continue_state_transitions(rnc); } -/** - * - * - * - */ static void scic_sds_remote_node_context_tx_rx_suspended_state_enter( void *object) { struct scic_sds_remote_node_context *rnc = object; - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE - ); - scic_sds_remote_node_context_continue_state_transitions(rnc); } -/** - * - * - * - */ -static void scic_sds_remote_node_context_await_suspension_state_enter( - void *object) -{ - struct scic_sds_remote_node_context *rnc = object; - - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE - ); -} - -/* --------------------------------------------------------------------------- */ - static const struct sci_base_state scic_sds_remote_node_context_state_table[] = { [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { .enter_state = scic_sds_remote_node_context_initial_state_enter, @@ -618,9 +364,7 @@ static const struct sci_base_state scic_sds_remote_node_context_state_table[] = [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { .enter_state = scic_sds_remote_node_context_tx_rx_suspended_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { - .enter_state = scic_sds_remote_node_context_await_suspension_state_enter, - }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { }, }; void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, @@ -875,3 +619,39 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ return SCI_FAILURE_INVALID_STATE; } } + +enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + enum scis_sds_remote_node_context_states state; + + state = sci_rnc->state_machine.current_state_id; + if (state != SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: invalid state %d\n", __func__, state); + return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; + } + return SCI_SUCCESS; +} + +enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + enum scis_sds_remote_node_context_states state; + + state = sci_rnc->state_machine.current_state_id; + switch (state) { + case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: + case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE: + case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + return SCI_SUCCESS; + case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE: + case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE: + scic_sds_remote_node_context_resume(sci_rnc, NULL, NULL); + return SCI_SUCCESS; + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: invalid state %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } +} -- cgit v1.2.2 From 9269e0e898594c65dee6b20d4ed48e33dbbd4eeb Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 12 May 2011 07:42:17 -0700 Subject: isci: add some type safety to the state machine interface Now that any given object type only has one state_machine we can use container_of() to get back to the given state machine owner. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 39 ++++++++++++++------------------- 1 file changed, 17 insertions(+), 22 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 82507bd228d4..e7fa5bac7d53 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -266,10 +266,9 @@ static void scic_sds_remote_node_context_invalidate_context_buffer( SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE); } -static void scic_sds_remote_node_context_initial_state_enter(void *object) +static void scic_sds_remote_node_context_initial_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = object; - struct sci_base_state_machine *sm = &rnc->state_machine; + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); /* Check to see if we have gotten back to the initial state because * someone requested to destroy the remote node context object. @@ -280,23 +279,23 @@ static void scic_sds_remote_node_context_initial_state_enter(void *object) } } -static void scic_sds_remote_node_context_posting_state_enter(void *object) +static void scic_sds_remote_node_context_posting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *sci_rnc = object; + struct scic_sds_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), state_machine); scic_sds_remote_node_context_validate_context_buffer(sci_rnc); } -static void scic_sds_remote_node_context_invalidating_state_enter(void *object) +static void scic_sds_remote_node_context_invalidating_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = object; + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); scic_sds_remote_node_context_invalidate_context_buffer(rnc); } -static void scic_sds_remote_node_context_resuming_state_enter(void *object) +static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = object; + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); struct scic_sds_remote_device *sci_dev; struct domain_device *dev; @@ -317,9 +316,9 @@ static void scic_sds_remote_node_context_resuming_state_enter(void *object) scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); } -static void scic_sds_remote_node_context_ready_state_enter(void *object) +static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = object; + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; @@ -327,17 +326,16 @@ static void scic_sds_remote_node_context_ready_state_enter(void *object) scic_sds_remote_node_context_notify_user(rnc); } -static void scic_sds_remote_node_context_tx_suspended_state_enter(void *object) +static void scic_sds_remote_node_context_tx_suspended_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = object; + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); scic_sds_remote_node_context_continue_state_transitions(rnc); } -static void scic_sds_remote_node_context_tx_rx_suspended_state_enter( - void *object) +static void scic_sds_remote_node_context_tx_rx_suspended_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = object; + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); scic_sds_remote_node_context_continue_state_transitions(rnc); } @@ -375,12 +373,9 @@ void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context rnc->remote_node_index = remote_node_index; rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - sci_base_state_machine_construct( - &rnc->state_machine, - rnc, - scic_sds_remote_node_context_state_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE - ); + sci_base_state_machine_construct(&rnc->state_machine, + scic_sds_remote_node_context_state_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE); sci_base_state_machine_start(&rnc->state_machine); } -- cgit v1.2.2 From e301370ac553a9a0ac0d1d25e769b86cf60395b3 Mon Sep 17 00:00:00 2001 From: Edmund Nadolski Date: Thu, 2 Jun 2011 00:10:43 +0000 Subject: isci: state machine cleanup This cleans up several areas of the state machine mechanism: o Rename sci_base_state_machine_change_state to sci_change_state o Remove sci_base_state_machine_get_state function o Rename 'state_machine' struct member to 'sm' in client structs o Shorten the name of request states o Shorten state machine state names as follows: SCI_BASE_CONTROLLER_STATE_xxx to SCIC_xxx SCI_BASE_PHY_STATE_xxx to SCI_PHY_xxx SCIC_SDS_PHY_STARTING_SUBSTATE_xxx to SCI_PHY_SUB_xxx SCI_BASE_PORT_STATE_xxx to SCI_PORT_xxx and SCIC_SDS_PORT_READY_SUBSTATE_xxx to SCI_PORT_SUB_xxx SCI_BASE_REMOTE_DEVICE_STATE_xxx to SCI_DEV_xxx SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_xxx to SCI_STP_DEV_xxx SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_xxx to SCI_SMP_DEV_xxx SCIC_SDS_REMOTE_NODE_CONTEXT_xxx_STATE to SCI_RNC_xxx Signed-off-by: Edmund Nadolski Signed-off-by: Dave Jiang Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 154 +++++++++++++++----------------- 1 file changed, 70 insertions(+), 84 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index e7fa5bac7d53..24b1d8acf7b8 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -84,9 +84,9 @@ bool scic_sds_remote_node_context_is_ready( struct scic_sds_remote_node_context *sci_rnc) { - u32 current_state = sci_base_state_machine_get_state(&sci_rnc->state_machine); + u32 current_state = sci_rnc->sm.current_state_id; - if (current_state == SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { + if (current_state == SCI_RNC_READY) { return true; } @@ -268,12 +268,12 @@ static void scic_sds_remote_node_context_invalidate_context_buffer( static void scic_sds_remote_node_context_initial_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); /* Check to see if we have gotten back to the initial state because * someone requested to destroy the remote node context object. */ - if (sm->previous_state_id == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE) { + if (sm->previous_state_id == SCI_RNC_INVALIDATING) { rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; scic_sds_remote_node_context_notify_user(rnc); } @@ -281,21 +281,21 @@ static void scic_sds_remote_node_context_initial_state_enter(struct sci_base_sta static void scic_sds_remote_node_context_posting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), state_machine); + struct scic_sds_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), sm); scic_sds_remote_node_context_validate_context_buffer(sci_rnc); } static void scic_sds_remote_node_context_invalidating_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); scic_sds_remote_node_context_invalidate_context_buffer(rnc); } static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); struct scic_sds_remote_device *sci_dev; struct domain_device *dev; @@ -318,7 +318,7 @@ static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_st static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; @@ -328,41 +328,41 @@ static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state static void scic_sds_remote_node_context_tx_suspended_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); scic_sds_remote_node_context_continue_state_transitions(rnc); } static void scic_sds_remote_node_context_tx_rx_suspended_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); scic_sds_remote_node_context_continue_state_transitions(rnc); } static const struct sci_base_state scic_sds_remote_node_context_state_table[] = { - [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { + [SCI_RNC_INITIAL] = { .enter_state = scic_sds_remote_node_context_initial_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = { + [SCI_RNC_POSTING] = { .enter_state = scic_sds_remote_node_context_posting_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = { + [SCI_RNC_INVALIDATING] = { .enter_state = scic_sds_remote_node_context_invalidating_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = { + [SCI_RNC_RESUMING] = { .enter_state = scic_sds_remote_node_context_resuming_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = { + [SCI_RNC_READY] = { .enter_state = scic_sds_remote_node_context_ready_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = { + [SCI_RNC_TX_SUSPENDED] = { .enter_state = scic_sds_remote_node_context_tx_suspended_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { + [SCI_RNC_TX_RX_SUSPENDED] = { .enter_state = scic_sds_remote_node_context_tx_rx_suspended_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { }, + [SCI_RNC_AWAIT_SUSPENSION] = { }, }; void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, @@ -373,11 +373,11 @@ void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context rnc->remote_node_index = remote_node_index; rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - sci_base_state_machine_construct(&rnc->state_machine, + sci_base_state_machine_construct(&rnc->sm, scic_sds_remote_node_context_state_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE); + SCI_RNC_INITIAL); - sci_base_state_machine_start(&rnc->state_machine); + sci_base_state_machine_start(&rnc->sm); } enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remote_node_context *sci_rnc, @@ -385,26 +385,24 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; + state = sci_rnc->sm.current_state_id; switch (state) { - case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE: + case SCI_RNC_POSTING: switch (scu_get_event_code(event_code)) { case SCU_EVENT_POST_RNC_COMPLETE: - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_READY); break; default: goto out; } break; - case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE: + case SCI_RNC_INVALIDATING: if (scu_get_event_code(event_code) == SCU_EVENT_POST_RNC_INVALIDATE_COMPLETE) { if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL) - state = SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE; + state = SCI_RNC_INITIAL; else - state = SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE; - sci_base_state_machine_change_state(&sci_rnc->state_machine, - state); + state = SCI_RNC_POSTING; + sci_change_state(&sci_rnc->sm, state); } else { switch (scu_get_event_type(event_code)) { case SCU_EVENT_TYPE_RNC_SUSPEND_TX: @@ -421,10 +419,9 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot } } break; - case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: + case SCI_RNC_RESUMING: if (scu_get_event_code(event_code) == SCU_EVENT_POST_RCN_RELEASE) { - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_READY); } else { switch (scu_get_event_type(event_code)) { case SCU_EVENT_TYPE_RNC_SUSPEND_TX: @@ -441,32 +438,28 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot } } break; - case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE: + case SCI_RNC_READY: switch (scu_get_event_type(event_code)) { case SCU_EVENT_TL_RNC_SUSPEND_TX: - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_TX_SUSPENDED); sci_rnc->suspension_code = scu_get_event_specifier(event_code); break; case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_TX_RX_SUSPENDED); sci_rnc->suspension_code = scu_get_event_specifier(event_code); break; default: goto out; } break; - case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + case SCI_RNC_AWAIT_SUSPENSION: switch (scu_get_event_type(event_code)) { case SCU_EVENT_TL_RNC_SUSPEND_TX: - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_TX_SUSPENDED); sci_rnc->suspension_code = scu_get_event_specifier(event_code); break; case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_TX_RX_SUSPENDED); sci_rnc->suspension_code = scu_get_event_specifier(event_code); break; default: @@ -493,22 +486,21 @@ enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_nod { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; + state = sci_rnc->sm.current_state_id; switch (state) { - case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE: + case SCI_RNC_INVALIDATING: scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); return SCI_SUCCESS; - case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + case SCI_RNC_POSTING: + case SCI_RNC_RESUMING: + case SCI_RNC_READY: + case SCI_RNC_TX_SUSPENDED: + case SCI_RNC_TX_RX_SUSPENDED: + case SCI_RNC_AWAIT_SUSPENSION: scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_INVALIDATING); return SCI_SUCCESS; - case SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE: + case SCI_RNC_INITIAL: dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), "%s: invalid state %d\n", __func__, state); /* We have decided that the destruct request on the remote node context @@ -530,8 +522,8 @@ enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; - if (state != SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { + state = sci_rnc->sm.current_state_id; + if (state != SCI_RNC_READY) { dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), "%s: invalid state %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; @@ -546,8 +538,7 @@ enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX); } - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_AWAIT_SUSPENSION); return SCI_SUCCESS; } @@ -557,27 +548,26 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; + state = sci_rnc->sm.current_state_id; switch (state) { - case SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE: + case SCI_RNC_INITIAL: if (sci_rnc->remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) return SCI_FAILURE_INVALID_STATE; scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); scic_sds_remote_node_context_construct_buffer(sci_rnc); - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_POSTING); return SCI_SUCCESS; - case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: + case SCI_RNC_POSTING: + case SCI_RNC_INVALIDATING: + case SCI_RNC_RESUMING: if (sci_rnc->destination_state != SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) return SCI_FAILURE_INVALID_STATE; sci_rnc->user_callback = cb_fn; sci_rnc->user_cookie = cb_p; return SCI_SUCCESS; - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE: { + case SCI_RNC_TX_SUSPENDED: { struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); struct domain_device *dev = sci_dev_to_domain(sci_dev); @@ -585,27 +575,23 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ /* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */ if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev)) - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { if (sci_dev->is_direct_attached) { /* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */ - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); } else { - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_INVALIDATING); } } else return SCI_FAILURE; return SCI_SUCCESS; } - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE: + case SCI_RNC_TX_RX_SUSPENDED: scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); return SCI_FAILURE_INVALID_STATE; - case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + case SCI_RNC_AWAIT_SUSPENSION: scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); return SCI_SUCCESS; default: @@ -620,8 +606,8 @@ enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_nod { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; - if (state != SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { + state = sci_rnc->sm.current_state_id; + if (state != SCI_RNC_READY) { dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), "%s: invalid state %d\n", __func__, state); return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; @@ -634,14 +620,14 @@ enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_n { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; + state = sci_rnc->sm.current_state_id; switch (state) { - case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + case SCI_RNC_RESUMING: + case SCI_RNC_READY: + case SCI_RNC_AWAIT_SUSPENSION: return SCI_SUCCESS; - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE: + case SCI_RNC_TX_SUSPENDED: + case SCI_RNC_TX_RX_SUSPENDED: scic_sds_remote_node_context_resume(sci_rnc, NULL, NULL); return SCI_SUCCESS; default: -- cgit v1.2.2 From 12ef65444de9d387a383b9991960848bed5bbe74 Mon Sep 17 00:00:00 2001 From: Edmund Nadolski Date: Thu, 2 Jun 2011 00:10:50 +0000 Subject: isci: additional state machine cleanup Additional state machine cleanups: o Remove static functions sci_state_machine_exit_state() and sci_state_machine_enter_state() o Combines sci_base_state_machine_construct() and sci_base_state_machine_start() into a single function, sci_init_sm() o Remove sci_base_state_machine_stop() which is unused. o Kill state_machine.[ch] Signed-off-by: Edmund Nadolski [fixed too large to inline functions] Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 24b1d8acf7b8..9e8967e19688 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -54,7 +54,7 @@ */ #include "host.h" -#include "state_machine.h" +#include "isci.h" #include "remote_device.h" #include "remote_node_context.h" #include "scu_event_codes.h" @@ -373,11 +373,7 @@ void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context rnc->remote_node_index = remote_node_index; rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - sci_base_state_machine_construct(&rnc->sm, - scic_sds_remote_node_context_state_table, - SCI_RNC_INITIAL); - - sci_base_state_machine_start(&rnc->sm); + sci_init_sm(&rnc->sm, scic_sds_remote_node_context_state_table, SCI_RNC_INITIAL); } enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remote_node_context *sci_rnc, -- cgit v1.2.2 From fd53660120b5eda06539225de56755dc389a4e64 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Mon, 20 Jun 2011 14:09:22 -0700 Subject: isci: Explicitly decode remote node ready and suspended states The remote node context should only signal a device reset condition in a suspended state. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 9e8967e19688..b6774bcdabd8 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -603,12 +603,23 @@ enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_nod enum scis_sds_remote_node_context_states state; state = sci_rnc->sm.current_state_id; - if (state != SCI_RNC_READY) { + + switch (state) { + case SCI_RNC_READY: + return SCI_SUCCESS; + case SCI_RNC_TX_SUSPENDED: + case SCI_RNC_TX_RX_SUSPENDED: + case SCI_RNC_AWAIT_SUSPENSION: dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), "%s: invalid state %d\n", __func__, state); return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; + default: + break; } - return SCI_SUCCESS; + dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: requested to start IO while still resuming, %d\n", + __func__, state); + return SCI_FAILURE_INVALID_STATE; } enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_node_context *sci_rnc, -- cgit v1.2.2 From 5076a1a97e2fa61c847a5fdd4b1991faf7716da6 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Mon, 27 Jun 2011 14:57:03 -0700 Subject: isci: unify isci_request and scic_sds_request They are one in the same object so remove the distinction. The near duplicate fields (owning_controller, and isci_host) will be cleaned up after the scic_sds_contoller isci_host unification. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index b6774bcdabd8..1b51fe55314d 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -598,7 +598,7 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ } enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { enum scis_sds_remote_node_context_states state; @@ -623,7 +623,7 @@ enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_nod } enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { enum scis_sds_remote_node_context_states state; -- cgit v1.2.2 From 78a6f06e0e82125787d7aa308fe28c2c8381540c Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 30 Jun 2011 16:31:37 -0700 Subject: isci: unify isci_remote_device and scic_sds_remote_device Remove the distinction between these two implementations and unify on isci_remote_device (local instances named idev). Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 48 ++++++++++++++++----------------- 1 file changed, 24 insertions(+), 24 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 1b51fe55314d..e485744e1263 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -103,22 +103,22 @@ bool scic_sds_remote_node_context_is_ready( static void scic_sds_remote_node_context_construct_buffer( struct scic_sds_remote_node_context *sci_rnc) { - struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct isci_remote_device *idev = rnc_to_dev(sci_rnc); + struct domain_device *dev = idev->domain_dev; int rni = sci_rnc->remote_node_index; union scu_remote_node_context *rnc; struct scic_sds_controller *scic; __le64 sas_addr; - scic = scic_sds_remote_device_get_controller(sci_dev); + scic = scic_sds_remote_device_get_controller(idev); rnc = scic_sds_controller_get_remote_node_context_buffer(scic, rni); memset(rnc, 0, sizeof(union scu_remote_node_context) - * scic_sds_remote_device_node_count(sci_dev)); + * scic_sds_remote_device_node_count(idev)); rnc->ssp.remote_node_index = rni; - rnc->ssp.remote_node_port_width = sci_dev->device_port_width; - rnc->ssp.logical_port_index = sci_dev->owning_port->physical_port_index; + rnc->ssp.remote_node_port_width = idev->device_port_width; + rnc->ssp.logical_port_index = idev->owning_port->physical_port_index; /* sas address is __be64, context ram format is __le64 */ sas_addr = cpu_to_le64(SAS_ADDR(dev->sas_addr)); @@ -148,7 +148,7 @@ static void scic_sds_remote_node_context_construct_buffer( rnc->ssp.initial_arbitration_wait_time = 0; /* Open Address Frame Parameters */ - rnc->ssp.oaf_connection_rate = sci_dev->connection_rate; + rnc->ssp.oaf_connection_rate = idev->connection_rate; rnc->ssp.oaf_features = 0; rnc->ssp.oaf_source_zone_group = 0; rnc->ssp.oaf_more_compatibility_features = 0; @@ -220,26 +220,26 @@ static void scic_sds_remote_node_context_continue_state_transitions(struct scic_ static void scic_sds_remote_node_context_validate_context_buffer( struct scic_sds_remote_node_context *sci_rnc) { - struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct isci_remote_device *idev = rnc_to_dev(sci_rnc); + struct domain_device *dev = idev->domain_dev; union scu_remote_node_context *rnc_buffer; rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( - scic_sds_remote_device_get_controller(sci_dev), + scic_sds_remote_device_get_controller(idev), sci_rnc->remote_node_index ); rnc_buffer->ssp.is_valid = true; - if (!sci_dev->is_direct_attached && + if (!idev->is_direct_attached && (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP))) { - scic_sds_remote_device_post_request(sci_dev, + scic_sds_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_96); } else { - scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_32); + scic_sds_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_32); - if (sci_dev->is_direct_attached) { - scic_sds_port_setup_transports(sci_dev->owning_port, + if (idev->is_direct_attached) { + scic_sds_port_setup_transports(idev->owning_port, sci_rnc->remote_node_index); } } @@ -296,11 +296,11 @@ static void scic_sds_remote_node_context_invalidating_state_enter(struct sci_bas static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_state_machine *sm) { struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); - struct scic_sds_remote_device *sci_dev; + struct isci_remote_device *idev; struct domain_device *dev; - sci_dev = rnc_to_dev(rnc); - dev = sci_dev_to_domain(sci_dev); + idev = rnc_to_dev(rnc); + dev = idev->domain_dev; /* * For direct attached SATA devices we need to clear the TLCR @@ -309,11 +309,11 @@ static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_st * the STPTLDARNI register with the RNi of the device */ if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) && - sci_dev->is_direct_attached) - scic_sds_port_setup_transports(sci_dev->owning_port, + idev->is_direct_attached) + scic_sds_port_setup_transports(idev->owning_port, rnc->remote_node_index); - scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); + scic_sds_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); } static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state_machine *sm) @@ -564,8 +564,8 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ sci_rnc->user_cookie = cb_p; return SCI_SUCCESS; case SCI_RNC_TX_SUSPENDED: { - struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct isci_remote_device *idev = rnc_to_dev(sci_rnc); + struct domain_device *dev = idev->domain_dev; scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); @@ -573,7 +573,7 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev)) sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { - if (sci_dev->is_direct_attached) { + if (idev->is_direct_attached) { /* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */ sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); } else { -- cgit v1.2.2 From d9dcb4ba791de2a06b19ac47cd61601cf3d4e208 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 30 Jun 2011 17:38:32 -0700 Subject: isci: unify isci_host and scic_sds_controller Remove the distinction between these two implementations and unify on isci_host (local instances named ihost). Hmmm, we had two 'oem_parameters' instances, one was unused... nice. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index e485744e1263..8a5203b6eb09 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -107,11 +107,11 @@ static void scic_sds_remote_node_context_construct_buffer( struct domain_device *dev = idev->domain_dev; int rni = sci_rnc->remote_node_index; union scu_remote_node_context *rnc; - struct scic_sds_controller *scic; + struct isci_host *ihost; __le64 sas_addr; - scic = scic_sds_remote_device_get_controller(idev); - rnc = scic_sds_controller_get_remote_node_context_buffer(scic, rni); + ihost = scic_sds_remote_device_get_controller(idev); + rnc = scic_sds_controller_get_remote_node_context_buffer(ihost, rni); memset(rnc, 0, sizeof(union scu_remote_node_context) * scic_sds_remote_device_node_count(idev)); @@ -135,14 +135,14 @@ static void scic_sds_remote_node_context_construct_buffer( if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { rnc->ssp.connection_occupancy_timeout = - scic->user_parameters.sds1.stp_max_occupancy_timeout; + ihost->user_parameters.sds1.stp_max_occupancy_timeout; rnc->ssp.connection_inactivity_timeout = - scic->user_parameters.sds1.stp_inactivity_timeout; + ihost->user_parameters.sds1.stp_inactivity_timeout; } else { rnc->ssp.connection_occupancy_timeout = - scic->user_parameters.sds1.ssp_max_occupancy_timeout; + ihost->user_parameters.sds1.ssp_max_occupancy_timeout; rnc->ssp.connection_inactivity_timeout = - scic->user_parameters.sds1.ssp_inactivity_timeout; + ihost->user_parameters.sds1.ssp_inactivity_timeout; } rnc->ssp.initial_arbitration_wait_time = 0; -- cgit v1.2.2 From 89a7301f21fb00e753089671eb9e4132aab8ea08 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 30 Jun 2011 19:14:33 -0700 Subject: isci: retire scic_sds_ and scic_ prefixes The distinction between scic_sds_ scic_ and sci_ are no longer relevant so just unify the prefixes on sci_. The distinction between isci_ and sci_ is historically significant, and useful for comparing the old 'core' to the current Linux driver. 'sci_' represents the former core as well as the routines that are closer to the hardware and protocol than their 'isci_' brethren. sci == sas controller interface. Also unwind the 'sds1' out of the parameter structs. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 198 +++++++++++++++----------------- 1 file changed, 90 insertions(+), 108 deletions(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 8a5203b6eb09..c2dfd5a72181 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -81,8 +81,8 @@ * otherwise it will return false bool true if the remote node context is in * the ready state. false if the remote node context is not in the ready state. */ -bool scic_sds_remote_node_context_is_ready( - struct scic_sds_remote_node_context *sci_rnc) +bool sci_remote_node_context_is_ready( + struct sci_remote_node_context *sci_rnc) { u32 current_state = sci_rnc->sm.current_state_id; @@ -93,15 +93,16 @@ bool scic_sds_remote_node_context_is_ready( return false; } -/** - * - * @sci_dev: The remote device to use to construct the RNC buffer. - * @rnc: The buffer into which the remote device data will be copied. - * - * This method will construct the RNC buffer for this remote device object. none - */ -static void scic_sds_remote_node_context_construct_buffer( - struct scic_sds_remote_node_context *sci_rnc) +static union scu_remote_node_context *sci_rnc_by_id(struct isci_host *ihost, u16 id) +{ + if (id < ihost->remote_node_entries && + ihost->device_table[id]) + return &ihost->remote_node_context_table[id]; + + return NULL; +} + +static void sci_remote_node_context_construct_buffer(struct sci_remote_node_context *sci_rnc) { struct isci_remote_device *idev = rnc_to_dev(sci_rnc); struct domain_device *dev = idev->domain_dev; @@ -110,11 +111,11 @@ static void scic_sds_remote_node_context_construct_buffer( struct isci_host *ihost; __le64 sas_addr; - ihost = scic_sds_remote_device_get_controller(idev); - rnc = scic_sds_controller_get_remote_node_context_buffer(ihost, rni); + ihost = sci_remote_device_get_controller(idev); + rnc = sci_rnc_by_id(ihost, rni); memset(rnc, 0, sizeof(union scu_remote_node_context) - * scic_sds_remote_device_node_count(idev)); + * sci_remote_device_node_count(idev)); rnc->ssp.remote_node_index = rni; rnc->ssp.remote_node_port_width = idev->device_port_width; @@ -135,14 +136,14 @@ static void scic_sds_remote_node_context_construct_buffer( if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { rnc->ssp.connection_occupancy_timeout = - ihost->user_parameters.sds1.stp_max_occupancy_timeout; + ihost->user_parameters.stp_max_occupancy_timeout; rnc->ssp.connection_inactivity_timeout = - ihost->user_parameters.sds1.stp_inactivity_timeout; + ihost->user_parameters.stp_inactivity_timeout; } else { rnc->ssp.connection_occupancy_timeout = - ihost->user_parameters.sds1.ssp_max_occupancy_timeout; + ihost->user_parameters.ssp_max_occupancy_timeout; rnc->ssp.connection_inactivity_timeout = - ihost->user_parameters.sds1.ssp_inactivity_timeout; + ihost->user_parameters.ssp_inactivity_timeout; } rnc->ssp.initial_arbitration_wait_time = 0; @@ -164,8 +165,8 @@ static void scic_sds_remote_node_context_construct_buffer( * to its ready state. If the remote node context is already setup to * transition to its final state then this function does nothing. none */ -static void scic_sds_remote_node_context_setup_to_resume( - struct scic_sds_remote_node_context *sci_rnc, +static void sci_remote_node_context_setup_to_resume( + struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback callback, void *callback_parameter) { @@ -176,8 +177,8 @@ static void scic_sds_remote_node_context_setup_to_resume( } } -static void scic_sds_remote_node_context_setup_to_destory( - struct scic_sds_remote_node_context *sci_rnc, +static void sci_remote_node_context_setup_to_destory( + struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback callback, void *callback_parameter) { @@ -192,8 +193,8 @@ static void scic_sds_remote_node_context_setup_to_destory( * This method just calls the user callback function and then resets the * callback. */ -static void scic_sds_remote_node_context_notify_user( - struct scic_sds_remote_node_context *rnc) +static void sci_remote_node_context_notify_user( + struct sci_remote_node_context *rnc) { if (rnc->user_callback != NULL) { (*rnc->user_callback)(rnc->user_cookie); @@ -203,99 +204,80 @@ static void scic_sds_remote_node_context_notify_user( } } -static void scic_sds_remote_node_context_continue_state_transitions(struct scic_sds_remote_node_context *rnc) +static void sci_remote_node_context_continue_state_transitions(struct sci_remote_node_context *rnc) { if (rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) - scic_sds_remote_node_context_resume(rnc, rnc->user_callback, + sci_remote_node_context_resume(rnc, rnc->user_callback, rnc->user_cookie); } -/** - * - * @sci_rnc: The remote node context object that is to be validated. - * - * This method will mark the rnc buffer as being valid and post the request to - * the hardware. none - */ -static void scic_sds_remote_node_context_validate_context_buffer( - struct scic_sds_remote_node_context *sci_rnc) +static void sci_remote_node_context_validate_context_buffer(struct sci_remote_node_context *sci_rnc) { + union scu_remote_node_context *rnc_buffer; struct isci_remote_device *idev = rnc_to_dev(sci_rnc); struct domain_device *dev = idev->domain_dev; - union scu_remote_node_context *rnc_buffer; + struct isci_host *ihost = idev->owning_port->owning_controller; - rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( - scic_sds_remote_device_get_controller(idev), - sci_rnc->remote_node_index - ); + rnc_buffer = sci_rnc_by_id(ihost, sci_rnc->remote_node_index); rnc_buffer->ssp.is_valid = true; if (!idev->is_direct_attached && (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP))) { - scic_sds_remote_device_post_request(idev, - SCU_CONTEXT_COMMAND_POST_RNC_96); + sci_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_96); } else { - scic_sds_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_32); + sci_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_32); - if (idev->is_direct_attached) { - scic_sds_port_setup_transports(idev->owning_port, - sci_rnc->remote_node_index); - } + if (idev->is_direct_attached) + sci_port_setup_transports(idev->owning_port, + sci_rnc->remote_node_index); } } -/** - * - * @sci_rnc: The remote node context object that is to be invalidated. - * - * This method will update the RNC buffer and post the invalidate request. none - */ -static void scic_sds_remote_node_context_invalidate_context_buffer( - struct scic_sds_remote_node_context *sci_rnc) +static void sci_remote_node_context_invalidate_context_buffer(struct sci_remote_node_context *sci_rnc) { union scu_remote_node_context *rnc_buffer; + struct isci_remote_device *idev = rnc_to_dev(sci_rnc); + struct isci_host *ihost = idev->owning_port->owning_controller; - rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( - scic_sds_remote_device_get_controller(rnc_to_dev(sci_rnc)), - sci_rnc->remote_node_index); + rnc_buffer = sci_rnc_by_id(ihost, sci_rnc->remote_node_index); rnc_buffer->ssp.is_valid = false; - scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), - SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE); + sci_remote_device_post_request(rnc_to_dev(sci_rnc), + SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE); } -static void scic_sds_remote_node_context_initial_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_initial_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); /* Check to see if we have gotten back to the initial state because * someone requested to destroy the remote node context object. */ if (sm->previous_state_id == SCI_RNC_INVALIDATING) { rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - scic_sds_remote_node_context_notify_user(rnc); + sci_remote_node_context_notify_user(rnc); } } -static void scic_sds_remote_node_context_posting_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_posting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), sm); + struct sci_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), sm); - scic_sds_remote_node_context_validate_context_buffer(sci_rnc); + sci_remote_node_context_validate_context_buffer(sci_rnc); } -static void scic_sds_remote_node_context_invalidating_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_invalidating_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); - scic_sds_remote_node_context_invalidate_context_buffer(rnc); + sci_remote_node_context_invalidate_context_buffer(rnc); } -static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_resuming_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); struct isci_remote_device *idev; struct domain_device *dev; @@ -310,73 +292,73 @@ static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_st */ if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) && idev->is_direct_attached) - scic_sds_port_setup_transports(idev->owning_port, + sci_port_setup_transports(idev->owning_port, rnc->remote_node_index); - scic_sds_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); + sci_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); } -static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; if (rnc->user_callback) - scic_sds_remote_node_context_notify_user(rnc); + sci_remote_node_context_notify_user(rnc); } -static void scic_sds_remote_node_context_tx_suspended_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_tx_suspended_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); - scic_sds_remote_node_context_continue_state_transitions(rnc); + sci_remote_node_context_continue_state_transitions(rnc); } -static void scic_sds_remote_node_context_tx_rx_suspended_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_tx_rx_suspended_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); - scic_sds_remote_node_context_continue_state_transitions(rnc); + sci_remote_node_context_continue_state_transitions(rnc); } -static const struct sci_base_state scic_sds_remote_node_context_state_table[] = { +static const struct sci_base_state sci_remote_node_context_state_table[] = { [SCI_RNC_INITIAL] = { - .enter_state = scic_sds_remote_node_context_initial_state_enter, + .enter_state = sci_remote_node_context_initial_state_enter, }, [SCI_RNC_POSTING] = { - .enter_state = scic_sds_remote_node_context_posting_state_enter, + .enter_state = sci_remote_node_context_posting_state_enter, }, [SCI_RNC_INVALIDATING] = { - .enter_state = scic_sds_remote_node_context_invalidating_state_enter, + .enter_state = sci_remote_node_context_invalidating_state_enter, }, [SCI_RNC_RESUMING] = { - .enter_state = scic_sds_remote_node_context_resuming_state_enter, + .enter_state = sci_remote_node_context_resuming_state_enter, }, [SCI_RNC_READY] = { - .enter_state = scic_sds_remote_node_context_ready_state_enter, + .enter_state = sci_remote_node_context_ready_state_enter, }, [SCI_RNC_TX_SUSPENDED] = { - .enter_state = scic_sds_remote_node_context_tx_suspended_state_enter, + .enter_state = sci_remote_node_context_tx_suspended_state_enter, }, [SCI_RNC_TX_RX_SUSPENDED] = { - .enter_state = scic_sds_remote_node_context_tx_rx_suspended_state_enter, + .enter_state = sci_remote_node_context_tx_rx_suspended_state_enter, }, [SCI_RNC_AWAIT_SUSPENSION] = { }, }; -void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, +void sci_remote_node_context_construct(struct sci_remote_node_context *rnc, u16 remote_node_index) { - memset(rnc, 0, sizeof(struct scic_sds_remote_node_context)); + memset(rnc, 0, sizeof(struct sci_remote_node_context)); rnc->remote_node_index = remote_node_index; rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - sci_init_sm(&rnc->sm, scic_sds_remote_node_context_state_table, SCI_RNC_INITIAL); + sci_init_sm(&rnc->sm, sci_remote_node_context_state_table, SCI_RNC_INITIAL); } -enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_event_handler(struct sci_remote_node_context *sci_rnc, u32 event_code) { enum scis_sds_remote_node_context_states state; @@ -476,7 +458,7 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot } -enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_destruct(struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback cb_fn, void *cb_p) { @@ -485,7 +467,7 @@ enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_nod state = sci_rnc->sm.current_state_id; switch (state) { case SCI_RNC_INVALIDATING: - scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); return SCI_SUCCESS; case SCI_RNC_POSTING: case SCI_RNC_RESUMING: @@ -493,7 +475,7 @@ enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_nod case SCI_RNC_TX_SUSPENDED: case SCI_RNC_TX_RX_SUSPENDED: case SCI_RNC_AWAIT_SUSPENSION: - scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); sci_change_state(&sci_rnc->sm, SCI_RNC_INVALIDATING); return SCI_SUCCESS; case SCI_RNC_INITIAL: @@ -511,7 +493,7 @@ enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_nod } } -enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_suspend(struct sci_remote_node_context *sci_rnc, u32 suspend_type, scics_sds_remote_node_context_callback cb_fn, void *cb_p) @@ -530,7 +512,7 @@ enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node sci_rnc->suspension_code = suspend_type; if (suspend_type == SCI_SOFTWARE_SUSPENSION) { - scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), + sci_remote_device_post_request(rnc_to_dev(sci_rnc), SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX); } @@ -538,7 +520,7 @@ enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node return SCI_SUCCESS; } -enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_resume(struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback cb_fn, void *cb_p) { @@ -550,8 +532,8 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ if (sci_rnc->remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) return SCI_FAILURE_INVALID_STATE; - scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); - scic_sds_remote_node_context_construct_buffer(sci_rnc); + sci_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_construct_buffer(sci_rnc); sci_change_state(&sci_rnc->sm, SCI_RNC_POSTING); return SCI_SUCCESS; case SCI_RNC_POSTING: @@ -567,7 +549,7 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ struct isci_remote_device *idev = rnc_to_dev(sci_rnc); struct domain_device *dev = idev->domain_dev; - scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); /* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */ if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev)) @@ -584,11 +566,11 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ return SCI_SUCCESS; } case SCI_RNC_TX_RX_SUSPENDED: - scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); return SCI_FAILURE_INVALID_STATE; case SCI_RNC_AWAIT_SUSPENSION: - scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); return SCI_SUCCESS; default: dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), @@ -597,7 +579,7 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ } } -enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_start_io(struct sci_remote_node_context *sci_rnc, struct isci_request *ireq) { enum scis_sds_remote_node_context_states state; @@ -622,7 +604,7 @@ enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_nod return SCI_FAILURE_INVALID_STATE; } -enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_start_task(struct sci_remote_node_context *sci_rnc, struct isci_request *ireq) { enum scis_sds_remote_node_context_states state; @@ -635,7 +617,7 @@ enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_n return SCI_SUCCESS; case SCI_RNC_TX_SUSPENDED: case SCI_RNC_TX_RX_SUSPENDED: - scic_sds_remote_node_context_resume(sci_rnc, NULL, NULL); + sci_remote_node_context_resume(sci_rnc, NULL, NULL); return SCI_SUCCESS; default: dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), -- cgit v1.2.2 From 34a991587a5cc9f78960c2c9beea217866458c41 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 1 Jul 2011 02:25:15 -0700 Subject: isci: kill 'get/set' macros Most of these simple dereference macros are longer than their open coded equivalent. Deleting enum sci_controller_mode is thrown in for good measure. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_node_context.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/scsi/isci/remote_node_context.c') diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index c2dfd5a72181..748e8339d1ec 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -111,7 +111,7 @@ static void sci_remote_node_context_construct_buffer(struct sci_remote_node_cont struct isci_host *ihost; __le64 sas_addr; - ihost = sci_remote_device_get_controller(idev); + ihost = idev->owning_port->owning_controller; rnc = sci_rnc_by_id(ihost, rni); memset(rnc, 0, sizeof(union scu_remote_node_context) -- cgit v1.2.2