diff options
| -rw-r--r-- | drivers/scsi/isci/core/sci_base_controller.h | 304 | ||||
| -rw-r--r-- | drivers/scsi/isci/core/sci_controller.h | 29 | ||||
| -rw-r--r-- | drivers/scsi/isci/core/scic_sds_controller.c | 438 | ||||
| -rw-r--r-- | drivers/scsi/isci/core/scic_sds_controller.h | 198 | ||||
| -rw-r--r-- | drivers/scsi/isci/core/scic_sds_remote_device.c | 9 | ||||
| -rw-r--r-- | drivers/scsi/isci/core/scic_sds_stp_request.c | 16 | ||||
| -rw-r--r-- | drivers/scsi/isci/host.c | 6 | ||||
| -rw-r--r-- | drivers/scsi/isci/isci.h | 2 |
8 files changed, 364 insertions, 638 deletions
diff --git a/drivers/scsi/isci/core/sci_base_controller.h b/drivers/scsi/isci/core/sci_base_controller.h deleted file mode 100644 index 8e0c46f8b221..000000000000 --- a/drivers/scsi/isci/core/sci_base_controller.h +++ /dev/null @@ -1,304 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * 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. - */ - -#ifndef _SCI_BASE_CONTROLLER_H_ -#define _SCI_BASE_CONTROLLER_H_ - -#include "intel_sas.h" -#include "sci_controller_constants.h" -#include "sci_base_state.h" -#include "sci_base_memory_descriptor_list.h" -#include "sci_base_state_machine.h" -#include "sci_object.h" - -struct sci_base_memory_descriptor_list; - -/** - * enum sci_base_controller_states - This enumeration depicts all the states - * for the common controller state machine. - * - * - */ -enum sci_base_controller_states { - /** - * Simply the initial state for the base controller state machine. - */ - SCI_BASE_CONTROLLER_STATE_INITIAL = 0, - - /** - * This state indicates that the controller is reset. The memory for - * the controller is in it's initial state, but the controller requires - * initialization. - * This state is entered from the INITIAL state. - * This state is entered from the RESETTING state. - */ - SCI_BASE_CONTROLLER_STATE_RESET, - - /** - * This state is typically an action state that indicates the controller - * is in the process of initialization. In this state no new IO operations - * are permitted. - * This state is entered from the RESET state. - */ - SCI_BASE_CONTROLLER_STATE_INITIALIZING, - - /** - * This state indicates that the controller has been successfully - * initialized. In this state no new IO operations are permitted. - * This state is entered from the INITIALIZING state. - */ - SCI_BASE_CONTROLLER_STATE_INITIALIZED, - - /** - * This state indicates the the controller is in the process of becoming - * ready (i.e. starting). In this state no new IO operations are permitted. - * This state is entered from the INITIALIZED state. - */ - SCI_BASE_CONTROLLER_STATE_STARTING, - - /** - * This state indicates the controller is now ready. Thus, the user - * is able to perform IO operations on the controller. - * This state is entered from the STARTING state. - */ - SCI_BASE_CONTROLLER_STATE_READY, - - /** - * This state is typically an action state that indicates the controller - * is in the process of resetting. Thus, the user is unable to perform - * IO operations on the controller. A reset is considered destructive in - * most cases. - * This state is entered from the READY state. - * This state is entered from the FAILED state. - * This state is entered from the STOPPED state. - */ - SCI_BASE_CONTROLLER_STATE_RESETTING, - - /** - * This state indicates that the controller is in the process of stopping. - * In this state no new IO operations are permitted, but existing IO - * operations are allowed to complete. - * This state is entered from the READY state. - */ - SCI_BASE_CONTROLLER_STATE_STOPPING, - - /** - * This state indicates that the controller has successfully been stopped. - * In this state no new IO operations are permitted. - * This state is entered from the STOPPING state. - */ - SCI_BASE_CONTROLLER_STATE_STOPPED, - - /** - * This state indicates that the controller could not successfully be - * initialized. In this state no new IO operations are permitted. - * This state is entered from the INITIALIZING state. - * This state is entered from the STARTING state. - * This state is entered from the STOPPING state. - * This state is entered from the RESETTING state. - */ - SCI_BASE_CONTROLLER_STATE_FAILED, - - SCI_BASE_CONTROLLER_MAX_STATES - -}; - -/** - * struct sci_base_controller - The base controller object abstracts the fields - * common to all SCI controller objects. - * - * - */ -struct sci_base_controller { - /** - * The field specifies that the parent object for the base controller - * is the base object itself. - */ - struct sci_base_object parent; - - /** - * This field points to the memory descriptor list associated with this - * controller. The MDL indicates the memory requirements necessary for - * this controller object. - */ - struct sci_base_memory_descriptor_list mdl; - - /** - * This field contains the information for the base controller state - * machine. - */ - struct sci_base_state_machine state_machine; -}; - -/* Forward declarations */ -struct sci_base_remote_device; -struct sci_base_request; - -typedef enum sci_status -(*sci_base_controller_handler_t)(struct sci_base_controller *); - -typedef enum sci_status -(*sci_base_controller_timed_handler_t)(struct sci_base_controller *, u32); - -typedef enum sci_status -(*sci_base_controller_request_handler_t)(struct sci_base_controller *, - struct sci_base_remote_device *, - struct sci_base_request *); - -typedef enum sci_status -(*sci_base_controller_start_request_handler_t)(struct sci_base_controller *, - struct sci_base_remote_device *, - struct sci_base_request *, u16); - -/** - * struct sci_base_controller_state_handler - This structure contains all of - * the state handler methods common to base controller state machines. - * Handler methods provide the ability to change the behavior for user - * requests or transitions depending on the state the machine is in. - * - * - */ -struct sci_base_controller_state_handler { - /** - * The start_handler specifies the method invoked when a user attempts to - * start a controller. - */ - sci_base_controller_timed_handler_t start; - - /** - * The stop_handler specifies the method invoked when a user attempts to - * stop a controller. - */ - sci_base_controller_timed_handler_t stop; - - /** - * The reset_handler specifies the method invoked when a user attempts to - * reset a controller. - */ - sci_base_controller_handler_t reset; - - /** - * The initialize_handler specifies the method invoked when a user - * attempts to initialize a controller. - */ - sci_base_controller_handler_t initialize; - - /** - * The start_io_handler specifies the method invoked when a user - * attempts to start an IO request for a controller. - */ - sci_base_controller_start_request_handler_t start_io; - - /** - * The complete_io_handler specifies the method invoked when a user - * attempts to complete an IO request for a controller. - */ - sci_base_controller_request_handler_t complete_io; - - /** - * The continue_io_handler specifies the method invoked when a user - * attempts to continue an IO request for a controller. - */ - sci_base_controller_request_handler_t continue_io; - - /** - * The start_task_handler specifies the method invoked when a user - * attempts to start a task management request for a controller. - */ - sci_base_controller_start_request_handler_t start_task; - - /** - * The complete_task_handler specifies the method invoked when a user - * attempts to complete a task management request for a controller. - */ - sci_base_controller_request_handler_t complete_task; - -}; - -/** - * sci_base_controller_construct() - Construct the base controller - * @this_controller: This parameter specifies the base controller to be - * constructed. - * @state_table: This parameter specifies the table of state definitions to be - * utilized for the controller state machine. - * @mde_array: This parameter specifies the array of memory descriptor entries - * to be managed by this list. - * @mde_array_length: This parameter specifies the size of the array of entries. - * @next_mdl: This parameter specifies a subsequent MDL object to be managed by - * this MDL object. - * @oem_parameters: This parameter specifies the original equipment - * manufacturer parameters to be utilized by this controller object. - * - */ -static inline void sci_base_controller_construct( - struct sci_base_controller *scic_base, - const struct sci_base_state *state_table, - struct sci_physical_memory_descriptor *mdes, - u32 mde_count, - struct sci_base_memory_descriptor_list *next_mdl) -{ - sci_base_state_machine_construct( - &scic_base->state_machine, - &scic_base->parent, - state_table, - SCI_BASE_CONTROLLER_STATE_INITIAL - ); - - sci_base_mdl_construct(&scic_base->mdl, mdes, mde_count, next_mdl); - - sci_base_state_machine_start(&scic_base->state_machine); -} - -#endif /* _SCI_BASE_CONTROLLER_H_ */ diff --git a/drivers/scsi/isci/core/sci_controller.h b/drivers/scsi/isci/core/sci_controller.h index 5c7774e75ddf..01316b1a8f27 100644 --- a/drivers/scsi/isci/core/sci_controller.h +++ b/drivers/scsi/isci/core/sci_controller.h @@ -63,36 +63,7 @@ * */ - -struct sci_base_memory_descriptor_list; -struct scic_sds_controller; - #define SCI_CONTROLLER_INVALID_IO_TAG 0xFFFF -/** - * sci_controller_get_memory_descriptor_list_handle() - This method simply - * returns a handle for the memory descriptor list associated with the - * supplied controller. The descriptor list provides DMA safe/capable - * memory requirements for this controller. - * @controller: This parameter specifies the controller for which to retrieve - * the DMA safe memory descriptor list. - * - * The user must adhere to the alignment requirements specified in memory - * descriptor. In situations where the operating environment does not offer - * memory allocation utilities supporting alignment, then it is the - * responsibility of the user to manually align the memory buffer for SCI. - * Thus, the user may have to allocate a larger buffer to meet the alignment. - * Additionally, the user will need to remember the actual memory allocation - * addresses in order to ensure the memory can be properly freed when necessary - * to do so. This method will return a valid handle, but the MDL may not be - * accurate until after the user has invoked the associated - * sci_controller_initialize() routine. A pointer to a physical memory - * descriptor array. - */ -struct sci_base_memory_descriptor_list * - sci_controller_get_memory_descriptor_list_handle( - struct scic_sds_controller *controller); - - #endif /* _SCI_CONTROLLER_H_ */ diff --git a/drivers/scsi/isci/core/scic_sds_controller.c b/drivers/scsi/isci/core/scic_sds_controller.c index 774c4b3b0dfb..e7790bb7dfdd 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.c +++ b/drivers/scsi/isci/core/scic_sds_controller.c @@ -212,12 +212,6 @@ static void scic_sds_controller_power_control_timer_handler( SMU_CQGR_EVENT_CYCLE_BIT \ ) -struct sci_base_memory_descriptor_list * -sci_controller_get_memory_descriptor_list_handle(struct scic_sds_controller *scic) -{ - return &scic->parent.mdl; -} - static void scic_sds_controller_initialize_power_control(struct scic_sds_controller *scic) { struct isci_host *ihost = sci_object_get_association(scic); @@ -688,13 +682,13 @@ static void scic_sds_controller_transition_to_ready( { struct isci_host *ihost = sci_object_get_association(scic); - if (scic->parent.state_machine.current_state_id == - SCI_BASE_CONTROLLER_STATE_STARTING) { + if (scic->state_machine.current_state_id == + SCI_BASE_CONTROLLER_STATE_STARTING) { /* * We move into the ready state, because some of the phys/ports * may be up and operational. */ - sci_base_state_machine_change_state(&scic->parent.state_machine, + sci_base_state_machine_change_state(&scic->state_machine, SCI_BASE_CONTROLLER_STATE_READY); isci_host_start_complete(ihost, status); @@ -705,7 +699,7 @@ static void scic_sds_controller_timeout_handler(void *_scic) { struct scic_sds_controller *scic = _scic; struct isci_host *ihost = sci_object_get_association(scic); - struct sci_base_state_machine *sm = &scic->parent.state_machine; + struct sci_base_state_machine *sm = &scic->state_machine; if (sm->current_state_id == SCI_BASE_CONTROLLER_STATE_STARTING) scic_sds_controller_transition_to_ready(scic, SCI_FAILURE_TIMEOUT); @@ -1549,7 +1543,7 @@ void scic_sds_controller_error_handler(struct scic_sds_controller *scic) dev_err(scic_to_dev(scic), "%s: status: %#x\n", __func__, interrupt_status); - sci_base_state_machine_change_state(&scic->parent.state_machine, + sci_base_state_machine_change_state(&scic->state_machine, SCI_BASE_CONTROLLER_STATE_FAILED); return; @@ -1572,7 +1566,7 @@ void scic_sds_controller_link_up( scic_sds_controller_phy_handler_t link_up; u32 state; - state = scic->parent.state_machine.current_state_id; + state = scic->state_machine.current_state_id; link_up = scic_sds_controller_state_handler_table[state].link_up; if (link_up) @@ -1593,7 +1587,7 @@ void scic_sds_controller_link_down( u32 state; scic_sds_controller_phy_handler_t link_down; - state = scic->parent.state_machine.current_state_id; + state = scic->state_machine.current_state_id; link_down = scic_sds_controller_state_handler_table[state].link_down; if (link_down) @@ -1639,7 +1633,7 @@ void scic_sds_controller_remote_device_stopped(struct scic_sds_controller *scic, u32 state; scic_sds_controller_device_handler_t stopped; - state = scic->parent.state_machine.current_state_id; + state = scic->state_machine.current_state_id; stopped = scic_sds_controller_state_handler_table[state].device_stopped; if (stopped) @@ -1969,14 +1963,14 @@ enum sci_status scic_controller_initialize( struct scic_sds_controller *scic) { enum sci_status status = SCI_FAILURE_INVALID_STATE; - sci_base_controller_handler_t initialize; + scic_sds_controller_handler_t initialize; u32 state; - state = scic->parent.state_machine.current_state_id; - initialize = scic_sds_controller_state_handler_table[state].base.initialize; + state = scic->state_machine.current_state_id; + initialize = scic_sds_controller_state_handler_table[state].initialize; if (initialize) - status = initialize(&scic->parent); + status = initialize(scic); else dev_warn(scic_to_dev(scic), "%s: SCIC Controller initialize operation requested " @@ -2050,14 +2044,14 @@ enum sci_status scic_controller_start( u32 timeout) { enum sci_status status = SCI_FAILURE_INVALID_STATE; - sci_base_controller_timed_handler_t start; + scic_sds_controller_timed_handler_t start; u32 state; - state = scic->parent.state_machine.current_state_id; - start = scic_sds_controller_state_handler_table[state].base.start; + state = scic->state_machine.current_state_id; + start = scic_sds_controller_state_handler_table[state].start; if (start) - status = start(&scic->parent, timeout); + status = start(scic, timeout); else dev_warn(scic_to_dev(scic), "%s: SCIC Controller start operation requested in " @@ -2089,14 +2083,14 @@ enum sci_status scic_controller_stop( u32 timeout) { enum sci_status status = SCI_FAILURE_INVALID_STATE; - sci_base_controller_timed_handler_t stop; + scic_sds_controller_timed_handler_t stop; u32 state; - state = scic->parent.state_machine.current_state_id; - stop = scic_sds_controller_state_handler_table[state].base.stop; + state = scic->state_machine.current_state_id; + stop = scic_sds_controller_state_handler_table[state].stop; if (stop) - status = stop(&scic->parent, timeout); + status = stop(scic, timeout); else dev_warn(scic_to_dev(scic), "%s: SCIC Controller stop operation requested in " @@ -2121,14 +2115,14 @@ enum sci_status scic_controller_reset( struct scic_sds_controller *scic) { enum sci_status status = SCI_FAILURE_INVALID_STATE; - sci_base_controller_handler_t reset; + scic_sds_controller_handler_t reset; u32 state; - state = scic->parent.state_machine.current_state_id; - reset = scic_sds_controller_state_handler_table[state].base.reset; + state = scic->state_machine.current_state_id; + reset = scic_sds_controller_state_handler_table[state].reset; if (reset) - status = reset(&scic->parent); + status = reset(scic); else dev_warn(scic_to_dev(scic), "%s: SCIC Controller reset operation requested in " @@ -2171,12 +2165,12 @@ enum sci_io_status scic_controller_start_io( u16 io_tag) { u32 state; - sci_base_controller_start_request_handler_t start_io; + scic_sds_controller_start_request_handler_t start_io; - state = scic->parent.state_machine.current_state_id; - start_io = scic_sds_controller_state_handler_table[state].base.start_io; + state = scic->state_machine.current_state_id; + start_io = scic_sds_controller_state_handler_table[state].start_io; - return start_io(&scic->parent, + return start_io(scic, (struct sci_base_remote_device *) remote_device, (struct sci_base_request *)io_request, io_tag); } @@ -2202,13 +2196,13 @@ enum sci_status scic_controller_terminate_request( struct scic_sds_remote_device *remote_device, struct scic_sds_request *request) { - sci_base_controller_request_handler_t terminate_request; + scic_sds_controller_request_handler_t terminate_request; u32 state; - state = scic->parent.state_machine.current_state_id; + state = scic->state_machine.current_state_id; terminate_request = scic_sds_controller_state_handler_table[state].terminate_request; - return terminate_request(&scic->parent, + return terminate_request(scic, (struct sci_base_remote_device *)remote_device, (struct sci_base_request *)request); } @@ -2241,12 +2235,12 @@ enum sci_status scic_controller_complete_io( struct scic_sds_request *io_request) { u32 state; - sci_base_controller_request_handler_t complete_io; + scic_sds_controller_request_handler_t complete_io; - state = scic->parent.state_machine.current_state_id; - complete_io = scic_sds_controller_state_handler_table[state].base.complete_io; + state = scic->state_machine.current_state_id; + complete_io = scic_sds_controller_state_handler_table[state].complete_io; - return complete_io(&scic->parent, + return complete_io(scic, (struct sci_base_remote_device *)remote_device, (struct sci_base_request *)io_request); } @@ -2286,14 +2280,14 @@ enum sci_task_status scic_controller_start_task( u16 task_tag) { u32 state; - sci_base_controller_start_request_handler_t start_task; + scic_sds_controller_start_request_handler_t start_task; enum sci_task_status status = SCI_TASK_FAILURE_INVALID_STATE; - state = scic->parent.state_machine.current_state_id; - start_task = scic_sds_controller_state_handler_table[state].base.start_task; + state = scic->state_machine.current_state_id; + start_task = scic_sds_controller_state_handler_table[state].start_task; if (start_task) - status = start_task(&scic->parent, + status = start_task(scic, (struct sci_base_remote_device *)remote_device, (struct sci_base_request *)task_request, task_tag); @@ -2326,14 +2320,14 @@ enum sci_status scic_controller_complete_task( struct scic_sds_request *task_request) { u32 state; - sci_base_controller_request_handler_t complete_task; + scic_sds_controller_request_handler_t complete_task; enum sci_status status = SCI_FAILURE_INVALID_STATE; - state = scic->parent.state_machine.current_state_id; - complete_task = scic_sds_controller_state_handler_table[state].base.complete_task; + state = scic->state_machine.current_state_id; + complete_task = scic_sds_controller_state_handler_table[state].complete_task; if (complete_task) - status = complete_task(&scic->parent, + status = complete_task(scic, (struct sci_base_remote_device *)remote_device, (struct sci_base_request *)task_request); else @@ -2518,9 +2512,9 @@ static enum sci_status scic_controller_set_mode( { enum sci_status status = SCI_SUCCESS; - if ((scic->parent.state_machine.current_state_id == + if ((scic->state_machine.current_state_id == SCI_BASE_CONTROLLER_STATE_INITIALIZING) || - (scic->parent.state_machine.current_state_id == + (scic->state_machine.current_state_id == SCI_BASE_CONTROLLER_STATE_INITIALIZED)) { switch (operating_mode) { case SCI_MODE_SPEED: @@ -2583,7 +2577,7 @@ enum sci_status scic_user_parameters_set( struct scic_sds_controller *scic, union scic_user_parameters *scic_parms) { - u32 state = scic->parent.state_machine.current_state_id; + u32 state = scic->state_machine.current_state_id; if (state == SCI_BASE_CONTROLLER_STATE_RESET || state == SCI_BASE_CONTROLLER_STATE_INITIALIZING || @@ -2637,7 +2631,7 @@ enum sci_status scic_oem_parameters_set( struct scic_sds_controller *scic, union scic_oem_parameters *scic_parms) { - u32 state = scic->parent.state_machine.current_state_id; + u32 state = scic->state_machine.current_state_id; if (state == SCI_BASE_CONTROLLER_STATE_RESET || state == SCI_BASE_CONTROLLER_STATE_INITIALIZING || @@ -2819,54 +2813,52 @@ struct scic_sds_controller *scic_controller_alloc(struct device *dev) return devm_kzalloc(dev, sizeof(struct scic_sds_controller), GFP_KERNEL); } -static enum sci_status default_controller_handler(struct sci_base_controller *base_scic, - const char *func) +static enum sci_status +default_controller_handler(struct scic_sds_controller *scic, const char *func) { - struct scic_sds_controller *scic = container_of(base_scic, typeof(*scic), parent); - u32 state = base_scic->state_machine.current_state_id; - - dev_warn(scic_to_dev(scic), "%s: invalid state %d\n", func, state); + dev_warn(scic_to_dev(scic), "%s: invalid state %d\n", func, + scic->state_machine.current_state_id); return SCI_FAILURE_INVALID_STATE; } static enum sci_status scic_sds_controller_default_start_operation_handler( - struct sci_base_controller *base_scic, + struct scic_sds_controller *scic, struct sci_base_remote_device *remote_device, struct sci_base_request *io_request, u16 io_tag) { - return default_controller_handler(base_scic, __func__); + return default_controller_handler(scic, __func__); } static enum sci_status scic_sds_controller_default_request_handler( - struct sci_base_controller *base_scic, + struct scic_sds_controller *scic, struct sci_base_remote_device *remote_device, struct sci_base_request *io_request) { - return default_controller_handler(base_scic, __func__); + return default_controller_handler(scic, __func__); } -static enum sci_status scic_sds_controller_general_reset_handler(struct sci_base_controller *base_scic) +static enum sci_status +scic_sds_controller_general_reset_handler(struct scic_sds_controller *scic) { /* The reset operation is not a graceful cleanup just perform the state * transition. */ - sci_base_state_machine_change_state(&base_scic->state_machine, + sci_base_state_machine_change_state(&scic->state_machine, SCI_BASE_CONTROLLER_STATE_RESETTING); return SCI_SUCCESS; } -static enum sci_status scic_sds_controller_reset_state_initialize_handler(struct sci_base_controller *base_scic) +static enum sci_status +scic_sds_controller_reset_state_initialize_handler(struct scic_sds_controller *scic) { - struct sci_base_state_machine *sm = &base_scic->state_machine; + struct sci_base_state_machine *sm = &scic->state_machine; enum sci_status result = SCI_SUCCESS; - struct scic_sds_controller *scic; struct isci_host *ihost; u32 index, state; - scic = container_of(base_scic, typeof(*scic), parent); ihost = sci_object_get_association(scic); sci_base_state_machine_change_state(sm, SCI_BASE_CONTROLLER_STATE_INITIALIZING); @@ -3028,13 +3020,7 @@ static enum sci_status scic_sds_controller_reset_state_initialize_handler(struct * * INITIALIZED STATE HANDLERS * ***************************************************************************** */ -/** - * - * @controller: This is the struct sci_base_controller object which is cast - * into a struct scic_sds_controller object. - * @timeout: This is the allowed time for the controller object to reach the - * started state. - * +/* * This function is the struct scic_sds_controller start handler for the * initialized state. * - Validate we have a good memory descriptor table - Initialze the @@ -3049,14 +3035,10 @@ static enum sci_status scic_sds_controller_reset_state_initialize_handler(struct * descriptor fields is invalid. */ static enum sci_status scic_sds_controller_initialized_state_start_handler( - struct sci_base_controller *base_scic, - u32 timeout) + struct scic_sds_controller *scic, u32 timeout) { u16 index; enum sci_status result; - struct scic_sds_controller *scic; - - scic = container_of(base_scic, typeof(*scic), parent); /* * Make sure that the SCI User filled in the memory descriptor @@ -3119,7 +3101,7 @@ static enum sci_status scic_sds_controller_initialized_state_start_handler( isci_timer_start(scic->timeout_timer, timeout); - sci_base_state_machine_change_state(&base_scic->state_machine, + sci_base_state_machine_change_state(&scic->state_machine, SCI_BASE_CONTROLLER_STATE_STARTING); } @@ -3180,79 +3162,54 @@ static void scic_sds_controller_starting_state_link_down_handler( /* scic_sds_port_link_down(port, phy); */ } -static enum sci_status scic_sds_controller_ready_state_stop_handler(struct sci_base_controller *base_scic, - u32 timeout) +static enum sci_status scic_sds_controller_ready_state_stop_handler( + struct scic_sds_controller *scic, + u32 timeout) { - struct scic_sds_controller *scic; - - scic = container_of(base_scic, typeof(*scic), parent); isci_timer_start(scic->timeout_timer, timeout); - sci_base_state_machine_change_state(&base_scic->state_machine, + sci_base_state_machine_change_state(&scic->state_machine, SCI_BASE_CONTROLLER_STATE_STOPPING); - return SCI_SUCCESS; } -/** - * - * @controller: This is struct sci_base_controller object which is cast into a - * struct scic_sds_controller object. - * @remote_device: This is struct sci_base_remote_device which is cast to a - * struct scic_sds_remote_device object. - * @io_request: This is the struct sci_base_request which is cast to a - * SCIC_SDS_IO_REQUEST object. - * @io_tag: This is the IO tag to be assigned to the IO request or - * SCI_CONTROLLER_INVALID_IO_TAG. - * +/* * This method is called when the struct scic_sds_controller is in the ready state and * the start io handler is called. - Start the io request on the remote device * - if successful - assign the io_request to the io_request_table - post the * request to the hardware enum sci_status SCI_SUCCESS if the start io operation * succeeds SCI_FAILURE_INSUFFICIENT_RESOURCES if the IO tag could not be * allocated for the io request. SCI_FAILURE_INVALID_STATE if one or more - * objects are not in a valid state to accept io requests. How does the io_tag - * parameter get assigned to the io request? + * objects are not in a valid state to accept io requests. + * + * XXX: How does the io_tag parameter get assigned to the io request? */ static enum sci_status scic_sds_controller_ready_state_start_io_handler( - struct sci_base_controller *controller, + struct scic_sds_controller *controller, struct sci_base_remote_device *remote_device, struct sci_base_request *io_request, u16 io_tag) { enum sci_status status; - struct scic_sds_controller *this_controller; struct scic_sds_request *the_request; struct scic_sds_remote_device *the_device; - this_controller = (struct scic_sds_controller *)controller; the_request = (struct scic_sds_request *)io_request; the_device = (struct scic_sds_remote_device *)remote_device; - status = scic_sds_remote_device_start_io(this_controller, the_device, the_request); - - if (status == SCI_SUCCESS) { - this_controller->io_request_table[ - scic_sds_io_tag_get_index(the_request->io_tag)] = the_request; + status = scic_sds_remote_device_start_io(controller, the_device, the_request); - scic_sds_controller_post_request( - this_controller, - scic_sds_request_get_post_context(the_request) - ); - } + if (status != SCI_SUCCESS) + return status; - return status; + controller->io_request_table[ + scic_sds_io_tag_get_index(the_request->io_tag)] = the_request; + scic_sds_controller_post_request(controller, + scic_sds_request_get_post_context(the_request)); + return SCI_SUCCESS; } -/** - * - * @controller: This is struct sci_base_controller object which is cast into a - * struct scic_sds_controller object. - * @remote_device: This is struct sci_base_remote_device which is cast to a - * struct scic_sds_remote_device object. - * @io_request: This is the struct sci_base_request which is cast to a - * SCIC_SDS_IO_REQUEST object. - * +/* * This method is called when the struct scic_sds_controller is in the ready state and * the complete io handler is called. - Complete the io request on the remote * device - if successful - remove the io_request to the io_request_table @@ -3261,76 +3218,49 @@ static enum sci_status scic_sds_controller_ready_state_start_io_handler( * accept io requests. */ static enum sci_status scic_sds_controller_ready_state_complete_io_handler( - struct sci_base_controller *controller, + struct scic_sds_controller *controller, struct sci_base_remote_device *remote_device, struct sci_base_request *io_request) { u16 index; enum sci_status status; - struct scic_sds_controller *this_controller; struct scic_sds_request *the_request; struct scic_sds_remote_device *the_device; - this_controller = (struct scic_sds_controller *)controller; the_request = (struct scic_sds_request *)io_request; the_device = (struct scic_sds_remote_device *)remote_device; - status = scic_sds_remote_device_complete_io( - this_controller, the_device, the_request); - - if (status == SCI_SUCCESS) { - index = scic_sds_io_tag_get_index(the_request->io_tag); - this_controller->io_request_table[index] = NULL; - } + status = scic_sds_remote_device_complete_io(controller, the_device, + the_request); + if (status != SCI_SUCCESS) + return status; - return status; + index = scic_sds_io_tag_get_index(the_request->io_tag); + controller->io_request_table[index] = NULL; + return SCI_SUCCESS; } -/** - * - * @controller: This is struct sci_base_controller object which is cast into a - * struct scic_sds_controller object. - * @remote_device: This is struct sci_base_remote_device which is cast to a - * struct scic_sds_remote_device object. - * @io_request: This is the struct sci_base_request which is cast to a - * SCIC_SDS_IO_REQUEST object. - * +/* * This method is called when the struct scic_sds_controller is in the ready state and * the continue io handler is called. enum sci_status */ static enum sci_status scic_sds_controller_ready_state_continue_io_handler( - struct sci_base_controller *controller, + struct scic_sds_controller *controller, struct sci_base_remote_device *remote_device, struct sci_base_request *io_request) { - struct scic_sds_controller *this_controller; struct scic_sds_request *the_request; the_request = (struct scic_sds_request *)io_request; - this_controller = (struct scic_sds_controller *)controller; - this_controller->io_request_table[ + controller->io_request_table[ scic_sds_io_tag_get_index(the_request->io_tag)] = the_request; - - scic_sds_controller_post_request( - this_controller, - scic_sds_request_get_post_context(the_request) - ); - + scic_sds_controller_post_request(controller, + scic_sds_request_get_post_context(the_request)); return SCI_SUCCESS; } -/** - * - * @controller: This is struct sci_base_controller object which is cast into a - * struct scic_sds_controller object. - * @remote_device: This is struct sci_base_remote_device which is cast to a - * struct scic_sds_remote_device object. - * @io_request: This is the struct sci_base_request which is cast to a - * SCIC_SDS_IO_REQUEST object. - * @task_tag: This is the task tag to be assigned to the task request or - * SCI_CONTROLLER_INVALID_IO_TAG. - * +/* * This method is called when the struct scic_sds_controller is in the ready state and * the start task handler is called. - The remote device is requested to start * the task request - if successful - assign the task to the io_request_table - @@ -3341,33 +3271,28 @@ static enum sci_status scic_sds_controller_ready_state_continue_io_handler( * tag get assigned in this code path? */ static enum sci_status scic_sds_controller_ready_state_start_task_handler( - struct sci_base_controller *controller, + struct scic_sds_controller *controller, struct sci_base_remote_device *remote_device, struct sci_base_request *io_request, u16 task_tag) { - struct scic_sds_controller *this_controller = (struct scic_sds_controller *) - controller; struct scic_sds_request *the_request = (struct scic_sds_request *) io_request; struct scic_sds_remote_device *the_device = (struct scic_sds_remote_device *) remote_device; enum sci_status status; - status = scic_sds_remote_device_start_task( - this_controller, the_device, the_request - ); + status = scic_sds_remote_device_start_task(controller, the_device, + the_request); if (status == SCI_SUCCESS) { - this_controller->io_request_table[ + controller->io_request_table[ scic_sds_io_tag_get_index(the_request->io_tag)] = the_request; - scic_sds_controller_post_request( - this_controller, - scic_sds_request_get_post_context(the_request) - ); + scic_sds_controller_post_request(controller, + scic_sds_request_get_post_context(the_request)); } else if (status == SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS) { - this_controller->io_request_table[ + controller->io_request_table[ scic_sds_io_tag_get_index(the_request->io_tag)] = the_request; /* @@ -3379,15 +3304,7 @@ static enum sci_status scic_sds_controller_ready_state_start_task_handler( return status; } -/** - * - * @controller: This is struct sci_base_controller object which is cast into a - * struct scic_sds_controller object. - * @remote_device: This is struct sci_base_remote_device which is cast to a - * struct scic_sds_remote_device object. - * @io_request: This is the struct sci_base_request which is cast to a - * SCIC_SDS_IO_REQUEST object. - * +/* * This method is called when the struct scic_sds_controller is in the ready state and * the terminate request handler is called. - call the io request terminate * function - if successful - post the terminate request to the SCU hardware @@ -3396,29 +3313,26 @@ static enum sci_status scic_sds_controller_ready_state_start_task_handler( * accept io requests. */ static enum sci_status scic_sds_controller_ready_state_terminate_request_handler( - struct sci_base_controller *controller, + struct scic_sds_controller *controller, struct sci_base_remote_device *remote_device, struct sci_base_request *io_request) { - struct scic_sds_controller *this_controller = (struct scic_sds_controller *) - controller; struct scic_sds_request *the_request = (struct scic_sds_request *) io_request; enum sci_status status; status = scic_sds_io_request_terminate(the_request); - if (status == SCI_SUCCESS) { - /* - * Utilize the original post context command and or in the POST_TC_ABORT - * request sub-type. */ - scic_sds_controller_post_request( - this_controller, - scic_sds_request_get_post_context(the_request) - | SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT - ); - } + if (status != SCI_SUCCESS) + return status; - return status; + /* + * Utilize the original post context command and or in the POST_TC_ABORT + * request sub-type. + */ + scic_sds_controller_post_request(controller, + scic_sds_request_get_post_context(the_request) | + SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT); + return SCI_SUCCESS; } /** @@ -3470,38 +3384,20 @@ static void scic_sds_controller_ready_state_link_down_handler( * ***************************************************************************** */ /** - * - * @controller: This is struct sci_base_controller object which is cast into a - * struct scic_sds_controller object. - * @remote_device: This is struct sci_base_remote_device which is cast to a - * struct scic_sds_remote_device object. - * @io_request: This is the struct sci_base_request which is cast to a - * SCIC_SDS_IO_REQUEST object. - * * This method is called when the struct scic_sds_controller is in a stopping state * and the complete io handler is called. - This function is not yet * implemented enum sci_status SCI_FAILURE */ static enum sci_status scic_sds_controller_stopping_state_complete_io_handler( - struct sci_base_controller *controller, + struct scic_sds_controller *controller, struct sci_base_remote_device *remote_device, struct sci_base_request *io_request) { - struct scic_sds_controller *this_controller; - - this_controller = (struct scic_sds_controller *)controller; - - /* / @todo Implement this function */ + /* XXX: Implement this function */ return SCI_FAILURE; } /** - * - * @controller: This is struct sci_base_controller object which is cast into a - * struct scic_sds_controller object. - * @remote_device: This is struct sci_base_remote_device which is cast to a - * struct scic_sds_remote_device object. - * * This method is called when the struct scic_sds_controller is in a stopping state * and the remote device has stopped. **/ @@ -3511,8 +3407,7 @@ static void scic_sds_controller_stopping_state_device_stopped_handler( ) { if (!scic_sds_controller_has_remote_devices_stopping(controller)) { - sci_base_state_machine_change_state( - &controller->parent.state_machine, + sci_base_state_machine_change_state(&controller->state_machine, SCI_BASE_CONTROLLER_STATE_STOPPED ); } @@ -3520,77 +3415,77 @@ static void scic_sds_controller_stopping_state_device_stopped_handler( const struct scic_sds_controller_state_handler scic_sds_controller_state_handler_table[] = { [SCI_BASE_CONTROLLER_STATE_INITIAL] = { - .base.start_io = scic_sds_controller_default_start_operation_handler, - .base.complete_io = scic_sds_controller_default_request_handler, - .base.continue_io = scic_sds_controller_default_request_handler, + .start_io = scic_sds_controller_default_start_operation_handler, + .complete_io = scic_sds_controller_default_request_handler, + .continue_io = scic_sds_controller_default_request_handler, .terminate_request = scic_sds_controller_default_request_handler, }, [SCI_BASE_CONTROLLER_STATE_RESET] = { - .base.reset = scic_sds_controller_general_reset_handler, - .base.initialize = scic_sds_controller_reset_state_initialize_handler, - .base.start_io = scic_sds_controller_default_start_operation_handler, - .base.complete_io = scic_sds_controller_default_request_handler, - .base.continue_io = scic_sds_controller_default_request_handler, + .reset = scic_sds_controller_general_reset_handler, + .initialize = scic_sds_controller_reset_state_initialize_handler, + .start_io = scic_sds_controller_default_start_operation_handler, + .complete_io = scic_sds_controller_default_request_handler, + .continue_io = scic_sds_controller_default_request_handler, .terminate_request = scic_sds_controller_default_request_handler, }, [SCI_BASE_CONTROLLER_STATE_INITIALIZING] = { - .base.start_io = scic_sds_controller_default_start_operation_handler, - .base.complete_io = scic_sds_controller_default_request_handler, - .base.continue_io = scic_sds_controller_default_request_handler, + .start_io = scic_sds_controller_default_start_operation_handler, + .complete_io = scic_sds_controller_default_request_handler, + .continue_io = scic_sds_controller_default_request_handler, .terminate_request = scic_sds_controller_default_request_handler, }, [SCI_BASE_CONTROLLER_STATE_INITIALIZED] = { - .base.start = scic_sds_controller_initialized_state_start_handler, - .base.start_io = scic_sds_controller_default_start_operation_handler, - .base.complete_io = scic_sds_controller_default_request_handler, - .base.continue_io = scic_sds_controller_default_request_handler, + .start = scic_sds_controller_initialized_state_start_handler, + .start_io = scic_sds_controller_default_start_operation_handler, + .complete_io = scic_sds_controller_default_request_handler, + .continue_io = scic_sds_controller_default_request_handler, .terminate_request = scic_sds_controller_default_request_handler, }, [SCI_BASE_CONTROLLER_STATE_STARTING] = { - .base.start_io = scic_sds_controller_default_start_operation_handler, - .base.complete_io = scic_sds_controller_default_request_handler, - .base.continue_io = scic_sds_controller_default_request_handler, + .start_io = scic_sds_controller_default_start_operation_handler, + .complete_io = scic_sds_controller_default_request_handler, + .continue_io = scic_sds_controller_default_request_handler, .terminate_request = scic_sds_controller_default_request_handler, .link_up = scic_sds_controller_starting_state_link_up_handler, .link_down = scic_sds_controller_starting_state_link_down_handler }, [SCI_BASE_CONTROLLER_STATE_READY] = { - .base.stop = scic_sds_controller_ready_state_stop_handler, - .base.reset = scic_sds_controller_general_reset_handler, - .base.start_io = scic_sds_controller_ready_state_start_io_handler, - .base.complete_io = scic_sds_controller_ready_state_complete_io_handler, - .base.continue_io = scic_sds_controller_ready_state_continue_io_handler, - .base.start_task = scic_sds_controller_ready_state_start_task_handler, - .base.complete_task = scic_sds_controller_ready_state_complete_io_handler, + .stop = scic_sds_controller_ready_state_stop_handler, + .reset = scic_sds_controller_general_reset_handler, + .start_io = scic_sds_controller_ready_state_start_io_handler, + .complete_io = scic_sds_controller_ready_state_complete_io_handler, + .continue_io = scic_sds_controller_ready_state_continue_io_handler, + .start_task = scic_sds_controller_ready_state_start_task_handler, + .complete_task = scic_sds_controller_ready_state_complete_io_handler, .terminate_request = scic_sds_controller_ready_state_terminate_request_handler, .link_up = scic_sds_controller_ready_state_link_up_handler, .link_down = scic_sds_controller_ready_state_link_down_handler }, [SCI_BASE_CONTROLLER_STATE_RESETTING] = { - .base.start_io = scic_sds_controller_default_start_operation_handler, - .base.complete_io = scic_sds_controller_default_request_handler, - .base.continue_io = scic_sds_controller_default_request_handler, + .start_io = scic_sds_controller_default_start_operation_handler, + .complete_io = scic_sds_controller_default_request_handler, + .continue_io = scic_sds_controller_default_request_handler, .terminate_request = scic_sds_controller_default_request_handler, }, [SCI_BASE_CONTROLLER_STATE_STOPPING] = { - .base.start_io = scic_sds_controller_default_start_operation_handler, - .base.complete_io = scic_sds_controller_stopping_state_complete_io_handler, - .base.continue_io = scic_sds_controller_default_request_handler, + .start_io = scic_sds_controller_default_start_operation_handler, + .complete_io = scic_sds_controller_stopping_state_complete_io_handler, + .continue_io = scic_sds_controller_default_request_handler, .terminate_request = scic_sds_controller_default_request_handler, .device_stopped = scic_sds_controller_stopping_state_device_stopped_handler, }, [SCI_BASE_CONTROLLER_STATE_STOPPED] = { - .base.reset = scic_sds_controller_general_reset_handler, - .base.start_io = scic_sds_controller_default_start_operation_handler, - .base.complete_io = scic_sds_controller_default_request_handler, - .base.continue_io = scic_sds_controller_default_request_handler, + .reset = scic_sds_controller_general_reset_handler, + .start_io = scic_sds_controller_default_start_operation_handler, + .complete_io = scic_sds_controller_default_request_handler, + .continue_io = scic_sds_controller_default_request_handler, .terminate_request = scic_sds_controller_default_request_handler, }, [SCI_BASE_CONTROLLER_STATE_FAILED] = { - .base.reset = scic_sds_controller_general_reset_handler, - .base.start_io = scic_sds_controller_default_start_operation_handler, - .base.complete_io = scic_sds_controller_default_request_handler, - .base.continue_io = scic_sds_controller_default_request_handler, + .reset = scic_sds_controller_general_reset_handler, + .start_io = scic_sds_controller_default_start_operation_handler, + .complete_io = scic_sds_controller_default_request_handler, + .continue_io = scic_sds_controller_default_request_handler, .terminate_request = scic_sds_controller_default_request_handler, }, }; @@ -3612,8 +3507,8 @@ static void scic_sds_controller_initial_state_enter( this_controller = (struct scic_sds_controller *)object; - sci_base_state_machine_change_state( - &this_controller->parent.state_machine, SCI_BASE_CONTROLLER_STATE_RESET); + sci_base_state_machine_change_state(&this_controller->state_machine, + SCI_BASE_CONTROLLER_STATE_RESET); } /** @@ -3718,9 +3613,9 @@ static void scic_sds_controller_resetting_state_enter(struct sci_base_object *ob { struct scic_sds_controller *scic; - scic = container_of(object, typeof(*scic), parent.parent); + scic = container_of(object, typeof(*scic), parent); scic_sds_controller_reset_hardware(scic); - sci_base_state_machine_change_state(&scic->parent.state_machine, + sci_base_state_machine_change_state(&scic->state_machine, SCI_BASE_CONTROLLER_STATE_RESET); } @@ -3771,10 +3666,13 @@ enum sci_status scic_controller_construct(struct scic_sds_controller *scic, { u8 i; - sci_base_controller_construct(&scic->parent, - scic_sds_controller_state_table, - scic->memory_descriptors, - ARRAY_SIZE(scic->memory_descriptors), NULL); + sci_base_state_machine_construct(&scic->state_machine, + &scic->parent, scic_sds_controller_state_table, + SCI_BASE_CONTROLLER_STATE_INITIAL); + + sci_base_mdl_construct(&scic->mdl, scic->memory_descriptors, + ARRAY_SIZE(scic->memory_descriptors), NULL); + sci_base_state_machine_start(&scic->state_machine); scic->scu_registers = scu_base; scic->smu_registers = smu_base; diff --git a/drivers/scsi/isci/core/scic_sds_controller.h b/drivers/scsi/isci/core/scic_sds_controller.h index baf0b9ededec..f2d7e9c05b17 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.h +++ b/drivers/scsi/isci/core/scic_sds_controller.h @@ -69,7 +69,9 @@ #include "sci_pool.h" #include "sci_controller_constants.h" #include "sci_memory_descriptor_list.h" -#include "sci_base_controller.h" +#include "sci_base_state.h" +#include "sci_base_state_machine.h" +#include "sci_base_memory_descriptor_list.h" #include "scic_config_parameters.h" #include "scic_sds_port.h" #include "scic_sds_phy.h" @@ -82,11 +84,12 @@ #include "scic_sds_unsolicited_frame_control.h" #include "scic_sds_port_configuration_agent.h" +struct sci_base_remote_device; struct scic_sds_remote_device; +struct sci_base_request; struct scic_sds_request; struct scic_sds_controller; - #define SCU_COMPLETION_RAM_ALIGNMENT (64) /** @@ -166,10 +169,23 @@ struct scic_power_control { */ struct scic_sds_controller { /** - * The struct sci_base_controller is the parent object for the struct scic_sds_controller - * object. + * The field specifies that the parent object for the base controller + * is the base object itself. + */ + struct sci_base_object parent; + + /** + * This field points to the memory descriptor list associated with this + * controller. The MDL indicates the memory requirements necessary for + * this controller object. + */ + struct sci_base_memory_descriptor_list mdl; + + /** + * This field contains the information for the base controller state + * machine. */ - struct sci_base_controller parent; + struct sci_base_state_machine state_machine; /** * This field is the driver timer object handler used to time the controller @@ -376,24 +392,170 @@ struct scic_sds_controller { }; -typedef void (*scic_sds_controller_phy_handler_t)(struct scic_sds_controller *, - struct scic_sds_port *, - struct scic_sds_phy *); +/** + * enum scic_sds_controller_states - This enumeration depicts all the states + * for the common controller state machine. + */ +enum scic_sds_controller_states { + /** + * Simply the initial state for the base controller state machine. + */ + SCI_BASE_CONTROLLER_STATE_INITIAL = 0, -typedef void (*scic_sds_controller_device_handler_t)(struct scic_sds_controller *, - struct scic_sds_remote_device *); + /** + * This state indicates that the controller is reset. The memory for + * the controller is in it's initial state, but the controller requires + * initialization. + * This state is entered from the INITIAL state. + * This state is entered from the RESETTING state. + */ + SCI_BASE_CONTROLLER_STATE_RESET, + /** + * This state is typically an action state that indicates the controller + * is in the process of initialization. In this state no new IO operations + * are permitted. + * This state is entered from the RESET state. + */ + SCI_BASE_CONTROLLER_STATE_INITIALIZING, + + /** + * This state indicates that the controller has been successfully + * initialized. In this state no new IO operations are permitted. + * This state is entered from the INITIALIZING state. + */ + SCI_BASE_CONTROLLER_STATE_INITIALIZED, + + /** + * This state indicates the the controller is in the process of becoming + * ready (i.e. starting). In this state no new IO operations are permitted. + * This state is entered from the INITIALIZED state. + */ + SCI_BASE_CONTROLLER_STATE_STARTING, + + /** + * This state indicates the controller is now ready. Thus, the user + * is able to perform IO operations on the controller. + * This state is entered from the STARTING state. + */ + SCI_BASE_CONTROLLER_STATE_READY, + + /** + * This state is typically an action state that indicates the controller + * is in the process of resetting. Thus, the user is unable to perform + * IO operations on the controller. A reset is considered destructive in + * most cases. + * This state is entered from the READY state. + * This state is entered from the FAILED state. + * This state is entered from the STOPPED state. + */ + SCI_BASE_CONTROLLER_STATE_RESETTING, + + /** + * This state indicates that the controller is in the process of stopping. + * In this state no new IO operations are permitted, but existing IO + * operations are allowed to complete. + * This state is entered from the READY state. + */ + SCI_BASE_CONTROLLER_STATE_STOPPING, + + /** + * This state indicates that the controller has successfully been stopped. + * In this state no new IO operations are permitted. + * This state is entered from the STOPPING state. + */ + SCI_BASE_CONTROLLER_STATE_STOPPED, + + /** + * This state indicates that the controller could not successfully be + * initialized. In this state no new IO operations are permitted. + * This state is entered from the INITIALIZING state. + * This state is entered from the STARTING state. + * This state is entered from the STOPPING state. + * This state is entered from the RESETTING state. + */ + SCI_BASE_CONTROLLER_STATE_FAILED, + + SCI_BASE_CONTROLLER_MAX_STATES + +}; + +typedef enum sci_status (*scic_sds_controller_handler_t) + (struct scic_sds_controller *); +typedef enum sci_status (*scic_sds_controller_timed_handler_t) + (struct scic_sds_controller *, u32); +typedef enum sci_status (*scic_sds_controller_request_handler_t) + (struct scic_sds_controller *, + struct sci_base_remote_device *, + struct sci_base_request *); +typedef enum sci_status (*scic_sds_controller_start_request_handler_t) + (struct scic_sds_controller *, + struct sci_base_remote_device *, + struct sci_base_request *, u16); +typedef void (*scic_sds_controller_phy_handler_t) + (struct scic_sds_controller *, + struct scic_sds_port *, + struct scic_sds_phy *); +typedef void (*scic_sds_controller_device_handler_t) + (struct scic_sds_controller *, + struct scic_sds_remote_device *); -/** - * struct scic_sds_controller_state_handler - - * - * This structure contains the SDS core specific definition for the state - * handlers. - */ struct scic_sds_controller_state_handler { - struct sci_base_controller_state_handler base; + /** + * The start_handler specifies the method invoked when a user attempts to + * start a controller. + */ + scic_sds_controller_timed_handler_t start; + + /** + * The stop_handler specifies the method invoked when a user attempts to + * stop a controller. + */ + scic_sds_controller_timed_handler_t stop; + + /** + * The reset_handler specifies the method invoked when a user attempts to + * reset a controller. + */ + scic_sds_controller_handler_t reset; + + /** + * The initialize_handler specifies the method invoked when a user + * attempts to initialize a controller. + */ + scic_sds_controller_handler_t initialize; + + /** + * The start_io_handler specifies the method invoked when a user + * attempts to start an IO request for a controller. + */ + scic_sds_controller_start_request_handler_t start_io; + + /** + * The complete_io_handler specifies the method invoked when a user + * attempts to complete an IO request for a controller. + */ + scic_sds_controller_request_handler_t complete_io; + + /** + * The continue_io_handler specifies the method invoked when a user + * attempts to continue an IO request for a controller. + */ + scic_sds_controller_request_handler_t continue_io; + + /** + * The start_task_handler specifies the method invoked when a user + * attempts to start a task management request for a controller. + */ + scic_sds_controller_start_request_handler_t start_task; + + /** + * The complete_task_handler specifies the method invoked when a user + * attempts to complete a task management request for a controller. + */ + scic_sds_controller_request_handler_t complete_task; - sci_base_controller_request_handler_t terminate_request; + scic_sds_controller_request_handler_t terminate_request; scic_sds_controller_phy_handler_t link_up; scic_sds_controller_phy_handler_t link_down; scic_sds_controller_device_handler_t device_stopped; diff --git a/drivers/scsi/isci/core/scic_sds_remote_device.c b/drivers/scsi/isci/core/scic_sds_remote_device.c index a6bcaa15fbf4..b4b6be7cdfb9 100644 --- a/drivers/scsi/isci/core/scic_sds_remote_device.c +++ b/drivers/scsi/isci/core/scic_sds_remote_device.c @@ -563,12 +563,11 @@ void scic_sds_remote_device_continue_request(void *dev) /* we need to check if this request is still valid to continue. */ if (sci_req) { struct scic_sds_controller *scic = sci_req->owning_controller; - u32 state = scic->parent.state_machine.current_state_id; - sci_base_controller_request_handler_t continue_io; + u32 state = scic->state_machine.current_state_id; + scic_sds_controller_request_handler_t continue_io; - continue_io = scic_sds_controller_state_handler_table[state].base.continue_io; - continue_io(&scic->parent, &sci_req->target_device->parent, - &sci_req->parent); + continue_io = scic_sds_controller_state_handler_table[state].continue_io; + continue_io(scic, &sci_req->target_device->parent, &sci_req->parent); } } diff --git a/drivers/scsi/isci/core/scic_sds_stp_request.c b/drivers/scsi/isci/core/scic_sds_stp_request.c index 0e961e9cd6eb..5dd4896576d4 100644 --- a/drivers/scsi/isci/core/scic_sds_stp_request.c +++ b/drivers/scsi/isci/core/scic_sds_stp_request.c @@ -649,7 +649,7 @@ static enum sci_status scic_sds_stp_request_pio_data_out_trasmit_data_frame( u32 length) { struct scic_sds_stp_request *this_sds_stp_request = (struct scic_sds_stp_request *)this_request; - sci_base_controller_request_handler_t continue_io; + scic_sds_controller_request_handler_t continue_io; struct scu_sgl_element *current_sgl; struct scic_sds_controller *scic; u32 state; @@ -675,9 +675,9 @@ static enum sci_status scic_sds_stp_request_pio_data_out_trasmit_data_frame( /* send the new TC out. */ scic = this_request->owning_controller; - state = scic->parent.state_machine.current_state_id; - continue_io = scic_sds_controller_state_handler_table[state].base.continue_io; - return continue_io(&scic->parent, &this_request->target_device->parent, + state = scic->state_machine.current_state_id; + continue_io = scic_sds_controller_state_handler_table[state].continue_io; + return continue_io(scic, &this_request->target_device->parent, &this_request->parent); } @@ -1822,7 +1822,7 @@ static void scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_complet struct sci_base_object *object) { struct scic_sds_request *this_request = (struct scic_sds_request *)object; - sci_base_controller_request_handler_t continue_io; + scic_sds_controller_request_handler_t continue_io; struct scu_task_context *task_context; struct sata_fis_reg_h2d *h2d_fis; struct scic_sds_controller *scic; @@ -1839,10 +1839,10 @@ static void scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_complet task_context->control_frame = 0; scic = this_request->owning_controller; - state = scic->parent.state_machine.current_state_id; - continue_io = scic_sds_controller_state_handler_table[state].base.continue_io; + state = scic->state_machine.current_state_id; + continue_io = scic_sds_controller_state_handler_table[state].continue_io; - status = continue_io(&scic->parent, &this_request->target_device->parent, + status = continue_io(scic, &this_request->target_device->parent, &this_request->parent); if (status == SCI_SUCCESS) { diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 66449593aa8c..adfc2452d216 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -62,6 +62,7 @@ #include "request.h" #include "host.h" #include "probe_roms.h" +#include "core/scic_sds_controller.h" irqreturn_t isci_msix_isr(int vec, void *data) { @@ -231,9 +232,8 @@ static int isci_host_mdl_allocate_coherent( struct coherent_memory_info *mdl_struct; u32 size = 0; - struct sci_base_memory_descriptor_list *mdl_handle - = sci_controller_get_memory_descriptor_list_handle( - isci_host->core_controller); + struct sci_base_memory_descriptor_list *mdl_handle = + &isci_host->core_controller->mdl; sci_mdl_first_entry(mdl_handle); diff --git a/drivers/scsi/isci/isci.h b/drivers/scsi/isci/isci.h index 87643857bade..ac292d2a75de 100644 --- a/drivers/scsi/isci/isci.h +++ b/drivers/scsi/isci/isci.h @@ -65,7 +65,7 @@ #include <scsi/libsas.h> #include <scsi/scsi.h> -#include "sci_base_controller.h" +#include "core/sci_object.h" #include "scic_controller.h" #include "host.h" #include "timers.h" |