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isci: namespacecheck cleanups 

* mark needlessly global routines static
* delete unused functions
* move kernel-doc blocks from header files to source
* reorder some functions to delete declarations
* more default handler cleanups phy

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2011-03-26 16:43:01 -07:00
parent 068b2c0363
commit 35173d579a
30 changed files with 1057 additions and 1964 deletions
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12
drivers/scsi/isci/core/sci_base_port.h
View File

@ -188,16 +188,4 @@ struct sci_base_port_state_handler {
SCI_BASE_PORT_PHY_HANDLER_T remove_phy_handler;
};
/**
* sci_base_port_construct() - Construct the base port object
* @this_port: This parameter specifies the base port to be constructed.
* @state_table: This parameter specifies the table of state definitions to be
* utilized for the domain state machine.
*
*/
void sci_base_port_construct(
struct sci_base_port *this_port,
const struct sci_base_state *state_table);
#endif /* _SCI_BASE_PORT_H_ */

13
drivers/scsi/isci/core/scic_config_parameters.h
View File

@ -260,19 +260,6 @@ enum sci_status scic_user_parameters_set(
struct scic_sds_controller *controller,
union scic_user_parameters *user_parameters);
/**
* scic_user_parameters_get() - This method allows the user to retrieve the
* user parameters utilized by the controller.
* @controller: This parameter specifies the controller on which to set the
* user parameters.
* @user_parameters: This parameter specifies the USER_PARAMETERS object into
* which the framework shall save it's parameters.
*
*/
void scic_user_parameters_get(
struct scic_sds_controller *controller,
union scic_user_parameters *user_parameters);
/**
* scic_oem_parameters_set() - This method allows the user to attempt to change
* the OEM parameters utilized by the controller.

348
drivers/scsi/isci/core/scic_controller.h
View File

@ -56,14 +56,6 @@
#ifndef _SCIC_CONTROLLER_H_
#define _SCIC_CONTROLLER_H_
/**
* This file contains all of the interface methods that can be called by an
* SCIC user on a controller object.
*
*
*/
#include "sci_status.h"
#include "sci_controller.h"
#include "scic_config_parameters.h"
@ -79,417 +71,77 @@ enum sci_controller_mode {
SCI_MODE_SIZE /* Optimized for memory use */
};
/**
* scic_controller_construct() - This method will attempt to construct a
* controller object utilizing the supplied parameter information.
* @c: This parameter specifies the controller to be constructed.
* @scu_base: mapped base address of the scu registers
* @smu_base: mapped base address of the smu registers
*
* Indicate if the controller was successfully constructed or if it failed in
* some way. SCI_SUCCESS This value is returned if the controller was
* successfully constructed. SCI_WARNING_TIMER_CONFLICT This value is returned
* if the interrupt coalescence timer may cause SAS compliance issues for SMP
* Target mode response processing. SCI_FAILURE_UNSUPPORTED_CONTROLLER_TYPE
* This value is returned if the controller does not support the supplied type.
* SCI_FAILURE_UNSUPPORTED_INIT_DATA_VERSION This value is returned if the
* controller does not support the supplied initialization data version.
*/
enum sci_status scic_controller_construct(struct scic_sds_controller *c,
void __iomem *scu_base,
void __iomem *smu_base);
/**
* scic_controller_enable_interrupts() - This method will enable all controller
* interrupts.
* @controller: This parameter specifies the controller for which to enable
* interrupts.
*
*/
void scic_controller_enable_interrupts(
struct scic_sds_controller *controller);
/**
* scic_controller_disable_interrupts() - This method will disable all
* controller interrupts.
* @controller: This parameter specifies the controller for which to disable
* interrupts.
*
*/
void scic_controller_disable_interrupts(
struct scic_sds_controller *controller);
/**
* scic_controller_initialize() - This method will initialize the controller
* hardware managed by the supplied core controller object. This method
* will bring the physical controller hardware out of reset and enable the
* core to determine the capabilities of the hardware being managed. Thus,
* the core controller can determine it's exact physical (DMA capable)
* memory requirements.
* @controller: This parameter specifies the controller to be initialized.
*
* The SCI Core user must have called scic_controller_construct() on the
* supplied controller object previously. Indicate if the controller was
* successfully initialized or if it failed in some way. SCI_SUCCESS This value
* is returned if the controller hardware was successfully initialized.
*/
enum sci_status scic_controller_initialize(
struct scic_sds_controller *controller);
/**
* scic_controller_get_suggested_start_timeout() - This method returns the
* suggested scic_controller_start() timeout amount. The user is free to
* use any timeout value, but this method provides the suggested minimum
* start timeout value. The returned value is based upon empirical
* information determined as a result of interoperability testing.
* @controller: the handle to the controller object for which to return the
* suggested start timeout.
*
* This method returns the number of milliseconds for the suggested start
* operation timeout.
*/
u32 scic_controller_get_suggested_start_timeout(
struct scic_sds_controller *controller);
/**
* scic_controller_start() - This method will start the supplied core
* controller. This method will start the staggered spin up operation. The
* SCI User completion callback is called when the following conditions are
* met: -# the return status of this method is SCI_SUCCESS. -# after all of
* the phys have successfully started or been given the opportunity to start.
* @controller: the handle to the controller object to start.
* @timeout: This parameter specifies the number of milliseconds in which the
* start operation should complete.
*
* The SCI Core user must have filled in the physical memory descriptor
* structure via the sci_controller_get_memory_descriptor_list() method. The
* SCI Core user must have invoked the scic_controller_initialize() method
* prior to invoking this method. The controller must be in the INITIALIZED or
* STARTED state. Indicate if the controller start method succeeded or failed
* in some way. SCI_SUCCESS if the start operation succeeded.
* SCI_WARNING_ALREADY_IN_STATE if the controller is already in the STARTED
* state. SCI_FAILURE_INVALID_STATE if the controller is not either in the
* INITIALIZED or STARTED states. SCI_FAILURE_INVALID_MEMORY_DESCRIPTOR if
* there are inconsistent or invalid values in the supplied
* struct sci_physical_memory_descriptor array.
*/
enum sci_status scic_controller_start(
struct scic_sds_controller *controller,
u32 timeout);
/**
* scic_controller_stop() - This method will stop an individual controller
* object.This method will invoke the associated user callback upon
* completion. The completion callback is called when the following
* conditions are met: -# the method return status is SCI_SUCCESS. -# the
* controller has been quiesced. This method will ensure that all IO
* requests are quiesced, phys are stopped, and all additional operation by
* the hardware is halted.
* @controller: the handle to the controller object to stop.
* @timeout: This parameter specifies the number of milliseconds in which the
* stop operation should complete.
*
* The controller must be in the STARTED or STOPPED state. Indicate if the
* controller stop method succeeded or failed in some way. SCI_SUCCESS if the
* stop operation successfully began. SCI_WARNING_ALREADY_IN_STATE if the
* controller is already in the STOPPED state. SCI_FAILURE_INVALID_STATE if the
* controller is not either in the STARTED or STOPPED states.
*/
enum sci_status scic_controller_stop(
struct scic_sds_controller *controller,
u32 timeout);
/**
* scic_controller_reset() - This method will reset the supplied core
* controller regardless of the state of said controller. This operation is
* considered destructive. In other words, all current operations are wiped
* out. No IO completions for outstanding devices occur. Outstanding IO
* requests are not aborted or completed at the actual remote device.
* @controller: the handle to the controller object to reset.
*
* Indicate if the controller reset method succeeded or failed in some way.
* SCI_SUCCESS if the reset operation successfully started. SCI_FATAL_ERROR if
* the controller reset operation is unable to complete.
*/
enum sci_status scic_controller_reset(
struct scic_sds_controller *controller);
/**
* scic_controller_start_io() - This method is called by the SCI user to
* send/start an IO request. If the method invocation is successful, then
* the IO request has been queued to the hardware for processing.
* @controller: the handle to the controller object for which to start an IO
* request.
* @remote_device: the handle to the remote device object for which to start an
* IO request.
* @io_request: the handle to the io request object to start.
* @io_tag: This parameter specifies a previously allocated IO tag that the
* user desires to be utilized for this request. This parameter is optional.
* The user is allowed to supply SCI_CONTROLLER_INVALID_IO_TAG as the value
* for this parameter.
*
* - IO tags are a protected resource. It is incumbent upon the SCI Core user
* to ensure that each of the methods that may allocate or free available IO
* tags are handled in a mutually exclusive manner. This method is one of said
* methods requiring proper critical code section protection (e.g. semaphore,
* spin-lock, etc.). - For SATA, the user is required to manage NCQ tags. As a
* result, it is expected the user will have set the NCQ tag field in the host
* to device register FIS prior to calling this method. There is also a
* requirement for the user to call scic_stp_io_set_ncq_tag() prior to invoking
* the scic_controller_start_io() method. scic_controller_allocate_tag() for
* more information on allocating a tag. Indicate if the controller
* successfully started the IO request. SCI_IO_SUCCESS if the IO request was
* successfully started. Determine the failure situations and return values.
*/
enum sci_io_status scic_controller_start_io(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device,
struct scic_sds_request *io_request,
u16 io_tag);
/**
* scic_controller_start_task() - This method is called by the SCIC user to
* send/start a framework task management request.
* @controller: the handle to the controller object for which to start the task
* management request.
* @remote_device: the handle to the remote device object for which to start
* the task management request.
* @task_request: the handle to the task request object to start.
* @io_tag: This parameter specifies a previously allocated IO tag that the
* user desires to be utilized for this request. Note this not the io_tag
* of the request being managed. It is to be utilized for the task request
* itself. This parameter is optional. The user is allowed to supply
* SCI_CONTROLLER_INVALID_IO_TAG as the value for this parameter.
*
* - IO tags are a protected resource. It is incumbent upon the SCI Core user
* to ensure that each of the methods that may allocate or free available IO
* tags are handled in a mutually exclusive manner. This method is one of said
* methods requiring proper critical code section protection (e.g. semaphore,
* spin-lock, etc.). - The user must synchronize this task with completion
* queue processing. If they are not synchronized then it is possible for the
* io requests that are being managed by the task request can complete before
* starting the task request. scic_controller_allocate_tag() for more
* information on allocating a tag. Indicate if the controller successfully
* started the IO request. SCI_TASK_SUCCESS if the task request was
* successfully started. SCI_TASK_FAILURE_REQUIRES_SCSI_ABORT This value is
* returned if there is/are task(s) outstanding that require termination or
* completion before this request can succeed.
*/
enum sci_task_status scic_controller_start_task(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device,
struct scic_sds_request *task_request,
u16 io_tag);
/**
* scic_controller_complete_task() - This method will perform core specific
* completion operations for task management request. After this method is
* invoked, the user should consider the task request as invalid until it is
* properly reused (i.e. re-constructed).
* @controller: The handle to the controller object for which to complete the
* task management request.
* @remote_device: The handle to the remote device object for which to complete
* the task management request.
* @task_request: the handle to the task management request object to complete.
*
* Indicate if the controller successfully completed the task management
* request. SCI_SUCCESS if the completion process was successful.
*/
enum sci_status scic_controller_complete_task(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device,
struct scic_sds_request *task_request);
/**
* scic_controller_terminate_request() - This method is called by the SCI Core
* user to terminate an ongoing (i.e. started) core IO request. This does
* not abort the IO request at the target, but rather removes the IO request
* from the host controller.
* @controller: the handle to the controller object for which to terminate a
* request.
* @remote_device: the handle to the remote device object for which to
* terminate a request.
* @request: the handle to the io or task management request object to
* terminate.
*
* Indicate if the controller successfully began the terminate process for the
* IO request. SCI_SUCCESS if the terminate process was successfully started
* for the request. Determine the failure situations and return values.
*/
enum sci_status scic_controller_terminate_request(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device,
struct scic_sds_request *request);
/**
* scic_controller_complete_io() - This method will perform core specific
* completion operations for an IO request. After this method is invoked,
* the user should consider the IO request as invalid until it is properly
* reused (i.e. re-constructed).
* @controller: The handle to the controller object for which to complete the
* IO request.
* @remote_device: The handle to the remote device object for which to complete
* the IO request.
* @io_request: the handle to the io request object to complete.
*
* - IO tags are a protected resource. It is incumbent upon the SCI Core user
* to ensure that each of the methods that may allocate or free available IO
* tags are handled in a mutually exclusive manner. This method is one of said
* methods requiring proper critical code section protection (e.g. semaphore,
* spin-lock, etc.). - If the IO tag for a request was allocated, by the SCI
* Core user, using the scic_controller_allocate_io_tag() method, then it is
* the responsibility of the caller to invoke the scic_controller_free_io_tag()
* method to free the tag (i.e. this method will not free the IO tag). Indicate
* if the controller successfully completed the IO request. SCI_SUCCESS if the
* completion process was successful.
*/
enum sci_status scic_controller_complete_io(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device,
struct scic_sds_request *io_request);
/**
* scic_controller_get_port_handle() - This method simply provides the user
* with a unique handle for a given SAS/SATA core port index.
* @controller: This parameter represents the handle to the controller object
* from which to retrieve a port (SAS or SATA) handle.
* @port_index: This parameter specifies the port index in the controller for
* which to retrieve the port handle. 0 <= port_index < maximum number of
* phys.
* @port_handle: This parameter specifies the retrieved port handle to be
* provided to the caller.
*
* Indicate if the retrieval of the port handle was successful. SCI_SUCCESS
* This value is returned if the retrieval was successful.
* SCI_FAILURE_INVALID_PORT This value is returned if the supplied port id is
* not in the supported range.
*/
enum sci_status scic_controller_get_port_handle(
struct scic_sds_controller *controller,
u8 port_index,
struct scic_sds_port **port_handle);
/**
* scic_controller_get_phy_handle() - This method simply provides the user with
* a unique handle for a given SAS/SATA phy index/identifier.
* @controller: This parameter represents the handle to the controller object
* from which to retrieve a phy (SAS or SATA) handle.
* @phy_index: This parameter specifies the phy index in the controller for
* which to retrieve the phy handle. 0 <= phy_index < maximum number of phys.
* @phy_handle: This parameter specifies the retrieved phy handle to be
* provided to the caller.
*
* Indicate if the retrieval of the phy handle was successful. SCI_SUCCESS This
* value is returned if the retrieval was successful. SCI_FAILURE_INVALID_PHY
* This value is returned if the supplied phy id is not in the supported range.
*/
enum sci_status scic_controller_get_phy_handle(
struct scic_sds_controller *controller,
u8 phy_index,
struct scic_sds_phy **phy_handle);
/**
* scic_controller_allocate_io_tag() - This method will allocate a tag from the
* pool of free IO tags. Direct allocation of IO tags by the SCI Core user
* is optional. The scic_controller_start_io() method will allocate an IO
* tag if this method is not utilized and the tag is not supplied to the IO
* construct routine. Direct allocation of IO tags may provide additional
* performance improvements in environments capable of supporting this usage
* model. Additionally, direct allocation of IO tags also provides
* additional flexibility to the SCI Core user. Specifically, the user may
* retain IO tags across the lives of multiple IO requests.
* @controller: the handle to the controller object for which to allocate the
* tag.
*
* IO tags are a protected resource. It is incumbent upon the SCI Core user to
* ensure that each of the methods that may allocate or free available IO tags
* are handled in a mutually exclusive manner. This method is one of said
* methods requiring proper critical code section protection (e.g. semaphore,
* spin-lock, etc.). An unsigned integer representing an available IO tag.
* SCI_CONTROLLER_INVALID_IO_TAG This value is returned if there are no
* currently available tags to be allocated. All return other values indicate a
* legitimate tag.
*/
u16 scic_controller_allocate_io_tag(
struct scic_sds_controller *controller);
/**
* scic_controller_free_io_tag() - This method will free an IO tag to the pool
* of free IO tags. This method provides the SCI Core user more flexibility
* with regards to IO tags. The user may desire to keep an IO tag after an
* IO request has completed, because they plan on re-using the tag for a
* subsequent IO request. This method is only legal if the tag was
* allocated via scic_controller_allocate_io_tag().
* @controller: This parameter specifies the handle to the controller object
* for which to free/return the tag.
* @io_tag: This parameter represents the tag to be freed to the pool of
* available tags.
*
* - IO tags are a protected resource. It is incumbent upon the SCI Core user
* to ensure that each of the methods that may allocate or free available IO
* tags are handled in a mutually exclusive manner. This method is one of said
* methods requiring proper critical code section protection (e.g. semaphore,
* spin-lock, etc.). - If the IO tag for a request was allocated, by the SCI
* Core user, using the scic_controller_allocate_io_tag() method, then it is
* the responsibility of the caller to invoke this method to free the tag. This
* method returns an indication of whether the tag was successfully put back
* (freed) to the pool of available tags. SCI_SUCCESS This return value
* indicates the tag was successfully placed into the pool of available IO
* tags. SCI_FAILURE_INVALID_IO_TAG This value is returned if the supplied tag
* is not a valid IO tag value.
*/
enum sci_status scic_controller_free_io_tag(
struct scic_sds_controller *controller,
u16 io_tag);
/**
* scic_controller_set_mode() - This method allows the user to configure the
* SCI core into either a performance mode or a memory savings mode.
* @controller: This parameter represents the handle to the controller object
* for which to update the operating mode.
* @mode: This parameter specifies the new mode for the controller.
*
* Indicate if the user successfully change the operating mode of the
* controller. SCI_SUCCESS The user successfully updated the mode.
*/
enum sci_status scic_controller_set_mode(
struct scic_sds_controller *controller,
enum sci_controller_mode mode);
/**
* scic_controller_set_interrupt_coalescence() - This method allows the user to
* configure the interrupt coalescence.
* @controller: This parameter represents the handle to the controller object
* for which its interrupt coalesce register is overridden.
* @coalesce_number: Used to control the number of entries in the Completion
* Queue before an interrupt is generated. If the number of entries exceed
* this number, an interrupt will be generated. The valid range of the input
* is [0, 256]. A setting of 0 results in coalescing being disabled.
* @coalesce_timeout: Timeout value in microseconds. The valid range of the
* input is [0, 2700000] . A setting of 0 is allowed and results in no
* interrupt coalescing timeout.
*
* Indicate if the user successfully set the interrupt coalesce parameters.
* SCI_SUCCESS The user successfully updated the interrutp coalescence.
* SCI_FAILURE_INVALID_PARAMETER_VALUE The user input value is out of range.
*/
enum sci_status scic_controller_set_interrupt_coalescence(
struct scic_sds_controller *controller,
u32 coalesce_number,
u32 coalesce_timeout);
struct device;
struct scic_sds_controller *scic_controller_alloc(struct device *dev);
#endif /* _SCIC_CONTROLLER_H_ */

2
drivers/scsi/isci/core/scic_io_request.h
View File

@ -325,7 +325,7 @@ enum sci_status scic_io_request_construct(
struct scic_sds_remote_device *scic_remote_device,
u16 io_tag,
void *user_io_request_object,
void *scic_io_request_memory,
struct scic_sds_request *scic_io_request_memory,
struct scic_sds_request **new_scic_io_request_handle);
/**

98
drivers/scsi/isci/core/scic_port.h
View File

@ -56,14 +56,6 @@
#ifndef _SCIC_PORT_H_
#define _SCIC_PORT_H_
/**
* This file contains all of the interface methods that can be called by an SCI
* Core user on a SAS or SATA port.
*
*
*/
#include "sci_status.h"
#include "intel_sas.h"
@ -78,118 +70,28 @@ enum SCIC_PORT_NOT_READY_REASON_CODE {
SCIC_PORT_NOT_READY_REASON_CODE_MAX
};
/**
* struct scic_port_end_point_properties - This structure defines the
* properties that can be retrieved for each end-point local or remote
* (attached) port in the controller.
*
*
*/
struct scic_port_end_point_properties {
/**
* This field indicates the SAS address for the associated end
* point in the port.
*/
struct sci_sas_address sas_address;
/**
* This field indicates the protocols supported by the associated
* end-point in the port.
*/
struct sci_sas_identify_address_frame_protocols protocols;
};
/**
* struct scic_port_properties - This structure defines the properties that can
* be retrieved for each port in the controller.
*
*
*/
struct scic_port_properties {
/**
* This field specifies the logical index of the port (0 relative).
*/
u32 index;
/**
* This field indicates the local end-point properties for port.
*/
struct scic_port_end_point_properties local;
/**
* This field indicates the remote (attached) end-point properties
* for the port.
*/
struct scic_port_end_point_properties remote;
/**
* This field specifies the phys contained inside the port.
*/
u32 phy_mask;
};
/**
* scic_port_get_properties() - This method simply returns the properties
* regarding the port, such as: physical index, protocols, sas address, etc.
* @port: this parameter specifies the port for which to retrieve the physical
* index.
* @properties: This parameter specifies the properties structure into which to
* copy the requested information.
*
* Indicate if the user specified a valid port. SCI_SUCCESS This value is
* returned if the specified port was valid. SCI_FAILURE_INVALID_PORT This
* value is returned if the specified port is not valid. When this value is
* returned, no data is copied to the properties output parameter.
*/
enum sci_status scic_port_get_properties(
struct scic_sds_port *port,
struct scic_port_properties *properties);
/**
* scic_port_stop() - This method will make the port no longer ready for
* operation. After invoking this method IO operation is not possible.
* @port: This parameter specifies the port to be stopped.
*
* Indicate if the port was successfully stopped. SCI_SUCCESS This value is
* returned if the port was successfully stopped. SCI_WARNING_ALREADY_IN_STATE
* This value is returned if the port is already stopped or in the process of
* stopping. SCI_FAILURE_INVALID_PORT This value is returned if the supplied
* port is not valid. SCI_FAILURE_INVALID_STATE This value is returned if a
* stop operation can't be completed due to the state of port.
*/
enum sci_status scic_port_stop(
struct scic_sds_port *port);
/**
* scic_port_hard_reset() - This method will request the SCI implementation to
* perform a HARD RESET on the SAS Port. If/When the HARD RESET completes
* the SCI user will be notified via an SCI OS callback indicating a direct
* attached device was found.
* @port: a handle corresponding to the SAS port to be hard reset.
* @reset_timeout: This parameter specifies the number of milliseconds in which
* the port reset operation should complete.
*
* The SCI User callback in SCIC_USER_CALLBACKS_T will only be called once for
* each phy in the SAS Port at completion of the hard reset sequence. Return a
* status indicating whether the hard reset started successfully. SCI_SUCCESS
* This value is returned if the hard reset operation started successfully.
*/
enum sci_status scic_port_hard_reset(
struct scic_sds_port *port,
u32 reset_timeout);
/**
* scic_port_enable_broadcast_change_notification() - This API method enables
* the broadcast change notification from underneath hardware.
* @port: The port upon which broadcast change notifications (BCN) are to be
* enabled.
*
*/
void scic_port_enable_broadcast_change_notification(
struct scic_sds_port *port);
#endif /* _SCIC_PORT_H_ */

675
drivers/scsi/isci/core/scic_sds_controller.c
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File diff suppressed because it is too large Load Diff

60
drivers/scsi/isci/core/scic_sds_controller.h
View File

@ -402,7 +402,6 @@ struct scic_sds_controller_state_handler {
extern const struct scic_sds_controller_state_handler
scic_sds_controller_state_handler_table[];
extern const struct sci_base_state scic_sds_controller_state_table[];
/**
* INCREMENT_QUEUE_GET() -
@ -535,7 +534,6 @@ extern const struct sci_base_state scic_sds_controller_state_table[];
/* --------------------------------------------------------------------------- */
u32 scic_sds_controller_get_object_size(void);
/* --------------------------------------------------------------------------- */
@ -615,8 +613,6 @@ void scic_sds_controller_link_down(
* * CORE CONTROLLER REMOTE DEVICE MESSAGE PROCESSING
* ***************************************************************************** */
bool scic_sds_controller_has_remote_devices_stopping(
struct scic_sds_controller *this_controller);
void scic_sds_controller_remote_device_started(
struct scic_sds_controller *this_controller,
@ -626,67 +622,11 @@ void scic_sds_controller_remote_device_stopped(
struct scic_sds_controller *this_controller,
struct scic_sds_remote_device *the_device);
/*
* *****************************************************************************
* * CORE CONTROLLER PRIVATE METHODS
* ***************************************************************************** */
enum sci_status scic_sds_controller_validate_memory_descriptor_table(
struct scic_sds_controller *this_controller);
void scic_sds_controller_ram_initialization(
struct scic_sds_controller *this_controller);
void scic_sds_controller_assign_task_entries(
struct scic_sds_controller *this_controller);
void scic_sds_controller_afe_initialization(
struct scic_sds_controller *this_controller);
void scic_sds_controller_enable_port_task_scheduler(
struct scic_sds_controller *this_controller);
void scic_sds_controller_initialize_completion_queue(
struct scic_sds_controller *this_controller);
void scic_sds_controller_initialize_unsolicited_frame_queue(
struct scic_sds_controller *this_controller);
void scic_sds_controller_phy_timer_stop(
struct scic_sds_controller *this_controller);
enum sci_status scic_sds_controller_start_next_phy(
struct scic_sds_controller *this_controller);
enum sci_status scic_sds_controller_stop_phys(
struct scic_sds_controller *this_controller);
enum sci_status scic_sds_controller_stop_ports(
struct scic_sds_controller *this_controller);
enum sci_status scic_sds_controller_stop_devices(
struct scic_sds_controller *this_controller);
void scic_sds_controller_copy_task_context(
struct scic_sds_controller *this_controller,
struct scic_sds_request *this_request);
void scic_sds_controller_timeout_handler(void *controller);
void scic_sds_controller_initialize_power_control(
struct scic_sds_controller *this_controller);
void scic_sds_controller_register_setup(
struct scic_sds_controller *this_controller);
void scic_sds_controller_reset_hardware(
struct scic_sds_controller *this_controller);
enum sci_status scic_sds_controller_initialize_phy_startup(
struct scic_sds_controller *this_controller);
void scic_sds_controller_build_memory_descriptor_table(
struct scic_sds_controller *this_controller);
#endif /* _SCIC_SDS_CONTROLLER_H_ */

324
drivers/scsi/isci/core/scic_sds_phy.c
View File

@ -257,7 +257,7 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy,
* restart the starting substate machine since we dont know what has actually
* happening.
*/
void scic_sds_phy_sata_timeout(void *phy)
static void scic_sds_phy_sata_timeout(void *phy)
{
struct scic_sds_phy *sci_phy = phy;
@ -273,47 +273,6 @@ void scic_sds_phy_sata_timeout(void *phy)
SCI_BASE_PHY_STATE_STARTING);
}
/**
* This method will construct the struct scic_sds_phy object
* @this_phy:
* @owning_port:
* @phy_index:
*
*/
void scic_sds_phy_construct(
struct scic_sds_phy *this_phy,
struct scic_sds_port *owning_port,
u8 phy_index)
{
/*
* Call the base constructor first
*/
sci_base_phy_construct(
&this_phy->parent,
scic_sds_phy_state_table
);
/* Copy the rest of the input data to our locals */
this_phy->owning_port = owning_port;
this_phy->phy_index = phy_index;
this_phy->bcn_received_while_port_unassigned = false;
this_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN;
this_phy->link_layer_registers = NULL;
this_phy->max_negotiated_speed = SCI_SAS_NO_LINK_RATE;
this_phy->sata_timeout_timer = NULL;
/* Clear out the identification buffer data */
memset(&this_phy->phy_type, 0, sizeof(this_phy->phy_type));
/* Initialize the the substate machines */
sci_base_state_machine_construct(
&this_phy->starting_substate_machine,
&this_phy->parent.parent,
scic_sds_phy_starting_substates,
SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL
);
}
/**
* This method returns the port currently containing this phy. If the phy is
* currently contained by the dummy port, then the phy is considered to not
@ -426,7 +385,7 @@ void scic_sds_phy_setup_transport(
* This function will perform the register reads/writes to suspend the SCU
* hardware protocol engine. none
*/
void scic_sds_phy_suspend(
static void scic_sds_phy_suspend(
struct scic_sds_phy *this_phy)
{
u32 scu_sas_pcfg_value;
@ -1416,7 +1375,62 @@ static enum sci_status scic_sds_phy_starting_substate_await_sata_power_consume_p
return SCI_SUCCESS;
}
const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_handler_table[] = {
static enum sci_status default_phy_handler(struct sci_base_phy *base_phy, const char *func)
{
struct scic_sds_phy *sci_phy;
sci_phy = container_of(base_phy, typeof(*sci_phy), parent);
dev_dbg(sciphy_to_dev(sci_phy),
"%s: in wrong state: %d\n", func,
sci_base_state_machine_get_state(&base_phy->state_machine));
return SCI_FAILURE_INVALID_STATE;
}
static enum sci_status scic_sds_phy_default_start_handler(struct sci_base_phy *base_phy)
{
return default_phy_handler(base_phy, __func__);
}
static enum sci_status scic_sds_phy_default_stop_handler(struct sci_base_phy *base_phy)
{
return default_phy_handler(base_phy, __func__);
}
static enum sci_status scic_sds_phy_default_reset_handler(struct sci_base_phy *base_phy)
{
return default_phy_handler(base_phy, __func__);
}
static enum sci_status scic_sds_phy_default_destroy_handler(struct sci_base_phy *base_phy)
{
return default_phy_handler(base_phy, __func__);
}
static enum sci_status scic_sds_phy_default_frame_handler(struct scic_sds_phy *sci_phy,
u32 frame_index)
{
struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy);
default_phy_handler(&sci_phy->parent, __func__);
scic_sds_controller_release_frame(scic, frame_index);
return SCI_FAILURE_INVALID_STATE;
}
static enum sci_status scic_sds_phy_default_event_handler(struct scic_sds_phy *sci_phy,
u32 event_code)
{
return default_phy_handler(&sci_phy->parent, __func__);
}
static enum sci_status scic_sds_phy_default_consume_power_handler(struct scic_sds_phy *sci_phy)
{
return default_phy_handler(&sci_phy->parent, __func__);
}
static const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_handler_table[] = {
[SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = {
.parent.start_handler = scic_sds_phy_default_start_handler,
.parent.stop_handler = scic_sds_phy_starting_substate_general_stop_handler,
@ -1867,7 +1881,7 @@ static void scic_sds_phy_starting_final_substate_enter(struct sci_base_object *o
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_phy_starting_substates[] = {
static const struct sci_base_state scic_sds_phy_starting_substates[] = {
[SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = {
.enter_state = scic_sds_phy_starting_initial_substate_enter,
},
@ -1905,196 +1919,6 @@ const struct sci_base_state scic_sds_phy_starting_substates[] = {
}
};
/*
* ***************************************************************************
* * DEFAULT HANDLERS
* *************************************************************************** */
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy
* object.
*
* This is the default method for phy a start request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_phy_default_start_handler(
struct sci_base_phy *phy)
{
struct scic_sds_phy *this_phy;
this_phy = (struct scic_sds_phy *)phy;
dev_warn(sciphy_to_dev(this_phy),
"%s: SCIC Phy 0x%p requested to start from invalid "
"state %d\n",
__func__,
this_phy,
sci_base_state_machine_get_state(
&this_phy->parent.state_machine));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a
* struct scic_sds_phy object.
*
* This is the default method for phy a stop request. It will report a warning
* and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_phy_default_stop_handler(struct sci_base_phy *base_phy)
{
struct scic_sds_phy *sci_phy;
sci_phy = (struct scic_sds_phy *)base_phy;
dev_dbg(sciphy_to_dev(sci_phy),
"%s: SCIC Phy 0x%p requested to stop from invalid state %d\n",
__func__,
sci_phy,
sci_base_state_machine_get_state(
&sci_phy->parent.state_machine));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy
* object.
*
* This is the default method for phy a reset request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_phy_default_reset_handler(
struct sci_base_phy *phy)
{
struct scic_sds_phy *this_phy;
this_phy = (struct scic_sds_phy *)phy;
dev_warn(sciphy_to_dev(this_phy),
"%s: SCIC Phy 0x%p requested to reset from invalid state "
"%d\n",
__func__,
this_phy,
sci_base_state_machine_get_state(
&this_phy->parent.state_machine));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy
* object.
*
* This is the default method for phy a destruct request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_phy_default_destroy_handler(
struct sci_base_phy *phy)
{
struct scic_sds_phy *this_phy;
this_phy = (struct scic_sds_phy *)phy;
/* / @todo Implement something for the default */
dev_warn(sciphy_to_dev(this_phy),
"%s: SCIC Phy 0x%p requested to destroy from invalid "
"state %d\n",
__func__,
this_phy,
sci_base_state_machine_get_state(
&this_phy->parent.state_machine));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy
* object.
* @frame_index: This is the frame index that was received from the SCU
* hardware.
*
* This is the default method for a phy frame handling request. It will report
* a warning, release the frame and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_phy_default_frame_handler(
struct scic_sds_phy *this_phy,
u32 frame_index)
{
dev_warn(sciphy_to_dev(this_phy),
"%s: SCIC Phy 0x%p received unexpected frame data %d "
"while in state %d\n",
__func__,
this_phy,
frame_index,
sci_base_state_machine_get_state(
&this_phy->parent.state_machine));
scic_sds_controller_release_frame(
scic_sds_phy_get_controller(this_phy), frame_index);
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy
* object.
* @event_code: This is the event code that was received from the SCU hardware.
*
* This is the default method for a phy event handler. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_phy_default_event_handler(
struct scic_sds_phy *this_phy,
u32 event_code)
{
dev_dbg(sciphy_to_dev(this_phy),
"%s: SCIC Phy 0x%p received unexpected event status %x "
"while in state %d\n",
__func__,
this_phy,
event_code,
sci_base_state_machine_get_state(
&this_phy->parent.state_machine));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy
* object.
*
* This is the default method for a phy consume power handler. It will report
* a warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_phy_default_consume_power_handler(
struct scic_sds_phy *this_phy)
{
dev_warn(sciphy_to_dev(this_phy),
"%s: SCIC Phy 0x%p given unexpected permission to consume "
"power while in state %d\n",
__func__,
this_phy,
sci_base_state_machine_get_state(
&this_phy->parent.state_machine));
return SCI_FAILURE_INVALID_STATE;
}
/*
* ******************************************************************************
* * PHY STOPPED STATE HANDLERS
* ****************************************************************************** */
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a
@ -2219,7 +2043,7 @@ static enum sci_status scic_sds_phy_resetting_state_event_handler(struct scic_sd
/* --------------------------------------------------------------------------- */
const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[] = {
static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[] = {
[SCI_BASE_PHY_STATE_INITIAL] = {
.parent.start_handler = scic_sds_phy_default_start_handler,
.parent.stop_handler = scic_sds_phy_default_stop_handler,
@ -2563,7 +2387,7 @@ static void scic_sds_phy_final_state_enter(
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_phy_state_table[] = {
static const struct sci_base_state scic_sds_phy_state_table[] = {
[SCI_BASE_PHY_STATE_INITIAL] = {
.enter_state = scic_sds_phy_initial_state_enter,
},
@ -2585,3 +2409,29 @@ const struct sci_base_state scic_sds_phy_state_table[] = {
},
};
void scic_sds_phy_construct(struct scic_sds_phy *sci_phy,
struct scic_sds_port *owning_port, u8 phy_index)
{
/*
* Call the base constructor first
*/
sci_base_phy_construct(&sci_phy->parent, scic_sds_phy_state_table);
/* Copy the rest of the input data to our locals */
sci_phy->owning_port = owning_port;
sci_phy->phy_index = phy_index;
sci_phy->bcn_received_while_port_unassigned = false;
sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN;
sci_phy->link_layer_registers = NULL;
sci_phy->max_negotiated_speed = SCI_SAS_NO_LINK_RATE;
sci_phy->sata_timeout_timer = NULL;
/* Clear out the identification buffer data */
memset(&sci_phy->phy_type, 0, sizeof(sci_phy->phy_type));
/* Initialize the the substate machines */
sci_base_state_machine_construct(&sci_phy->starting_substate_machine,
&sci_phy->parent.parent,
scic_sds_phy_starting_substates,
SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL);
}

35
drivers/scsi/isci/core/scic_sds_phy.h
View File

@ -293,12 +293,6 @@ struct scic_sds_phy_state_handler {
};
extern const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[];
extern const struct sci_base_state scic_sds_phy_state_table[];
extern const struct sci_base_state scic_sds_phy_starting_substates[];
extern const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_handler_table[];
/**
* scic_sds_phy_get_index() -
*
@ -362,12 +356,6 @@ enum sci_status scic_sds_phy_stop(
enum sci_status scic_sds_phy_reset(
struct scic_sds_phy *this_phy);
void scic_sds_phy_sata_timeout(
void *cookie);
void scic_sds_phy_suspend(
struct scic_sds_phy *this_phy);
void scic_sds_phy_resume(
struct scic_sds_phy *this_phy);
@ -402,27 +390,4 @@ void scic_sds_phy_get_attached_phy_protocols(
struct scic_sds_phy *this_phy,
struct sci_sas_identify_address_frame_protocols *protocols);
enum sci_status scic_sds_phy_default_start_handler(
struct sci_base_phy *phy);
enum sci_status scic_sds_phy_default_stop_handler(
struct sci_base_phy *phy);
enum sci_status scic_sds_phy_default_reset_handler(
struct sci_base_phy *phy);
enum sci_status scic_sds_phy_default_destroy_handler(
struct sci_base_phy *phy);
enum sci_status scic_sds_phy_default_frame_handler(
struct scic_sds_phy *phy,
u32 frame_index);
enum sci_status scic_sds_phy_default_event_handler(
struct scic_sds_phy *phy,
u32 evnet_code);
enum sci_status scic_sds_phy_default_consume_power_handler(
struct scic_sds_phy *phy);
#endif /* _SCIC_SDS_PHY_H_ */

444
drivers/scsi/isci/core/scic_sds_port.c
View File

@ -69,19 +69,13 @@
#include "sci_environment.h"
#include "scic_sds_controller_registers.h"
static void scic_sds_port_invalid_link_up(
struct scic_sds_port *this_port,
struct scic_sds_phy *phy);
static void scic_sds_port_timeout_handler(
void *port);
#define SCIC_SDS_PORT_MIN_TIMER_COUNT (SCI_MAX_PORTS)
#define SCIC_SDS_PORT_MAX_TIMER_COUNT (SCI_MAX_PORTS)
#define SCIC_SDS_PORT_HARD_RESET_TIMEOUT (1000)
#define SCU_DUMMY_INDEX (0xFFFF)
void sci_base_port_construct(
static void sci_base_port_construct(
struct sci_base_port *base_port,
const struct sci_base_state *state_table)
{
@ -168,7 +162,7 @@ bool scic_sds_port_is_valid_phy_assignment(
* Return a bit mask indicating which phys are a part of this port. Each bit
* corresponds to a phy identifier (e.g. bit 0 = phy id 0).
*/
u32 scic_sds_port_get_phys(struct scic_sds_port *this_port)
static u32 scic_sds_port_get_phys(struct scic_sds_port *this_port)
{
u32 index;
u32 mask;
@ -196,7 +190,7 @@ u32 scic_sds_port_get_phys(struct scic_sds_port *this_port)
* phy mask can be supported. true if this is a valid phy assignment for the
* port false if this is not a valid phy assignment for the port
*/
bool scic_sds_port_is_phy_mask_valid(
static bool scic_sds_port_is_phy_mask_valid(
struct scic_sds_port *this_port,
u32 phy_mask)
{
@ -269,7 +263,7 @@ static struct scic_sds_phy *scic_sds_port_get_a_connected_phy(
* is a functional test that only fails if the phy is currently assigned to a
* different port.
*/
enum sci_status scic_sds_port_set_phy(
static enum sci_status scic_sds_port_set_phy(
struct scic_sds_port *port,
struct scic_sds_phy *phy)
{
@ -304,7 +298,7 @@ enum sci_status scic_sds_port_set_phy(
* this phy is not currently assinged to this port. bool true if the phy is
* removed from the port. false if this phy is not assined to this port.
*/
enum sci_status scic_sds_port_clear_phy(
static enum sci_status scic_sds_port_clear_phy(
struct scic_sds_port *port,
struct scic_sds_phy *phy)
{
@ -485,7 +479,7 @@ void scic_sds_port_get_attached_protocols(
* This structure will be posted to the hardware to work around a scheduler
* error in the hardware.
*/
void scic_sds_port_construct_dummy_rnc(struct scic_sds_port *sci_port, u16 rni)
static void scic_sds_port_construct_dummy_rnc(struct scic_sds_port *sci_port, u16 rni)
{
union scu_remote_node_context *rnc;
@ -520,7 +514,7 @@ void scic_sds_port_construct_dummy_rnc(struct scic_sds_port *sci_port, u16 rni)
* in the hardware.
*
*/
void scic_sds_port_construct_dummy_task(struct scic_sds_port *sci_port, u16 tci)
static void scic_sds_port_construct_dummy_task(struct scic_sds_port *sci_port, u16 tci)
{
struct scu_task_context *task_context;
@ -554,7 +548,7 @@ void scic_sds_port_construct_dummy_task(struct scic_sds_port *sci_port, u16 tci)
task_context->task_phase = 0x01;
}
void scic_sds_port_destroy_dummy_resources(struct scic_sds_port *sci_port)
static void scic_sds_port_destroy_dummy_resources(struct scic_sds_port *sci_port)
{
struct scic_sds_controller *scic = sci_port->owning_controller;
@ -569,38 +563,6 @@ void scic_sds_port_destroy_dummy_resources(struct scic_sds_port *sci_port)
sci_port->reserved_tci = SCU_DUMMY_INDEX;
}
void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 port_index,
struct scic_sds_controller *scic)
{
u32 index;
sci_base_port_construct(&sci_port->parent, scic_sds_port_state_table);
sci_base_state_machine_construct(&sci_port->ready_substate_machine,
&sci_port->parent.parent,
scic_sds_port_ready_substate_table,
SCIC_SDS_PORT_READY_SUBSTATE_WAITING);
sci_port->logical_port_index = SCIC_SDS_DUMMY_PORT;
sci_port->physical_port_index = port_index;
sci_port->active_phy_mask = 0;
sci_port->owning_controller = scic;
sci_port->started_request_count = 0;
sci_port->assigned_device_count = 0;
sci_port->reserved_rni = SCU_DUMMY_INDEX;
sci_port->reserved_tci = SCU_DUMMY_INDEX;
sci_port->timer_handle = NULL;
sci_port->port_task_scheduler_registers = NULL;
for (index = 0; index < SCI_MAX_PHYS; index++)
sci_port->phy_table[index] = NULL;
}
/**
* This method performs initialization of the supplied port. Initialization
* includes: - state machine initialization - member variable initialization
@ -627,61 +589,18 @@ enum sci_status scic_sds_port_initialize(
}
/**
* scic_port_get_properties() - This method simply returns the properties
* regarding the port, such as: physical index, protocols, sas address, etc.
* @port: this parameter specifies the port for which to retrieve the physical
* index.
* @properties: This parameter specifies the properties structure into which to
* copy the requested information.
*
* @this_port: This is the struct scic_sds_port object for which has a phy that has
* gone link up.
* @the_phy: This is the struct scic_sds_phy object that has gone link up.
* @do_notify_user: This parameter specifies whether to inform the user (via
* scic_cb_port_link_up()) as to the fact that a new phy as become ready.
*
* This method is the a general link up handler for the struct scic_sds_port object.
* This function will determine if this struct scic_sds_phy can be assigned to this
* struct scic_sds_port object. If the struct scic_sds_phy object can is not a valid PHY for
* this port then the function will notify the SCIC_USER. A PHY can only be
* part of a port if it's attached SAS ADDRESS is the same as all other PHYs in
* the same port. none
* Indicate if the user specified a valid port. SCI_SUCCESS This value is
* returned if the specified port was valid. SCI_FAILURE_INVALID_PORT This
* value is returned if the specified port is not valid. When this value is
* returned, no data is copied to the properties output parameter.
*/
void scic_sds_port_general_link_up_handler(
struct scic_sds_port *this_port,
struct scic_sds_phy *the_phy,
bool do_notify_user)
{
struct sci_sas_address port_sas_address;
struct sci_sas_address phy_sas_address;
scic_sds_port_get_attached_sas_address(this_port, &port_sas_address);
scic_sds_phy_get_attached_sas_address(the_phy, &phy_sas_address);
/*
* If the SAS address of the new phy matches the SAS address of
* other phys in the port OR this is the first phy in the port,
* then activate the phy and allow it to be used for operations
* in this port. */
if (
(
(phy_sas_address.high == port_sas_address.high)
&& (phy_sas_address.low == port_sas_address.low)
)
|| (this_port->active_phy_mask == 0)
) {
scic_sds_port_activate_phy(this_port, the_phy, do_notify_user);
if (this_port->parent.state_machine.current_state_id
== SCI_BASE_PORT_STATE_RESETTING) {
sci_base_state_machine_change_state(
&this_port->parent.state_machine, SCI_BASE_PORT_STATE_READY
);
}
} else {
scic_sds_port_invalid_link_up(this_port, the_phy);
}
}
enum sci_status scic_port_stop(struct scic_sds_port *port)
{
return port->state_handlers->parent.stop_handler(&port->parent);
}
enum sci_status scic_port_get_properties(
struct scic_sds_port *port,
struct scic_port_properties *prop)
@ -700,7 +619,20 @@ enum sci_status scic_port_get_properties(
return SCI_SUCCESS;
}
/**
* scic_port_hard_reset() - This method will request the SCI implementation to
* perform a HARD RESET on the SAS Port. If/When the HARD RESET completes
* the SCI user will be notified via an SCI OS callback indicating a direct
* attached device was found.
* @port: a handle corresponding to the SAS port to be hard reset.
* @reset_timeout: This parameter specifies the number of milliseconds in which
* the port reset operation should complete.
*
* The SCI User callback in SCIC_USER_CALLBACKS_T will only be called once for
* each phy in the SAS Port at completion of the hard reset sequence. Return a
* status indicating whether the hard reset started successfully. SCI_SUCCESS
* This value is returned if the hard reset operation started successfully.
*/
enum sci_status scic_port_hard_reset(
struct scic_sds_port *port,
u32 reset_timeout)
@ -741,12 +673,11 @@ void scic_sds_port_setup_transports(
* the phy to the port - enabling the Protocol Engine in the silicon. -
* notifying the user that the link is up. none
*/
void scic_sds_port_activate_phy(struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy,
bool do_notify_user)
static void scic_sds_port_activate_phy(struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy,
bool do_notify_user)
{
struct scic_sds_controller *scic =
scic_sds_port_get_controller(sci_port);
struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port);
struct sci_sas_identify_address_frame_protocols protocols;
struct isci_host *ihost = sci_object_get_association(scic);
@ -764,22 +695,11 @@ void scic_sds_port_activate_phy(struct scic_sds_port *sci_port,
isci_port_link_up(ihost, sci_port, sci_phy);
}
/**
*
* @this_port: This is the port on which the phy should be deactivated.
* @the_phy: This is the specific phy that is no longer active in the port.
* @do_notify_user: This parameter specifies whether to inform the user (via
* isci_port_link_down()) as to the fact that a new phy as become
* ready.
*
* This function will deactivate the supplied phy in the port. none
*/
void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy,
bool do_notify_user)
{
struct scic_sds_controller *scic =
scic_sds_port_get_controller(sci_port);
struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port);
struct isci_port *iport = sci_object_get_association(sci_port);
struct isci_host *ihost = sci_object_get_association(scic);
struct isci_phy *iphy = sci_object_get_association(sci_phy);
@ -821,6 +741,48 @@ static void scic_sds_port_invalid_link_up(
}
}
/**
* scic_sds_port_general_link_up_handler - phy can be assigned to port?
* @sci_port: scic_sds_port object for which has a phy that has gone link up.
* @sci_phy: This is the struct scic_sds_phy object that has gone link up.
* @do_notify_user: This parameter specifies whether to inform the user (via
* scic_cb_port_link_up()) as to the fact that a new phy as become ready.
*
* Determine if this phy can be assigned to this
* port . If the phy is not a valid PHY for
* this port then the function will notify the user. A PHY can only be
* part of a port if it's attached SAS ADDRESS is the same as all other PHYs in
* the same port. none
*/
static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy,
bool do_notify_user)
{
struct sci_sas_address port_sas_address;
struct sci_sas_address phy_sas_address;
scic_sds_port_get_attached_sas_address(sci_port, &port_sas_address);
scic_sds_phy_get_attached_sas_address(sci_phy, &phy_sas_address);
/* If the SAS address of the new phy matches the SAS address of
* other phys in the port OR this is the first phy in the port,
* then activate the phy and allow it to be used for operations
* in this port.
*/
if ((phy_sas_address.high == port_sas_address.high &&
phy_sas_address.low == port_sas_address.low) ||
sci_port->active_phy_mask == 0) {
struct sci_base_state_machine *sm = &sci_port->parent.state_machine;
scic_sds_port_activate_phy(sci_port, sci_phy, do_notify_user);
if (sm->current_state_id == SCI_BASE_PORT_STATE_RESETTING)
sci_base_state_machine_change_state(sm, SCI_BASE_PORT_STATE_READY);
} else
scic_sds_port_invalid_link_up(sci_port, sci_phy);
}
/**
* This method returns false if the port only has a single phy object assigned.
* If there are no phys or more than one phy then the method will return
@ -1004,7 +966,7 @@ static void scic_sds_port_timeout_handler(void *port)
*
*
*/
void scic_sds_port_update_viit_entry(struct scic_sds_port *this_port)
static void scic_sds_port_update_viit_entry(struct scic_sds_port *this_port)
{
struct sci_sas_address sas_address;
@ -1483,9 +1445,106 @@ static enum sci_status scic_sds_port_ready_configuring_substate_complete_io_hand
return SCI_SUCCESS;
}
/* --------------------------------------------------------------------------- */
static enum sci_status default_port_handler(struct sci_base_port *base_port, const char *func)
{
struct scic_sds_port *sci_port;
struct scic_sds_port_state_handler
sci_port = container_of(base_port, typeof(*sci_port), parent);
dev_warn(sciport_to_dev(sci_port),
"%s: in wrong state: %d\n", func,
sci_base_state_machine_get_state(&base_port->state_machine));
return SCI_FAILURE_INVALID_STATE;
}
static enum sci_status scic_sds_port_default_start_handler(struct sci_base_port *base_port)
{
return default_port_handler(base_port, __func__);
}
static enum sci_status scic_sds_port_default_stop_handler(struct sci_base_port *base_port)
{
return default_port_handler(base_port, __func__);
}
static enum sci_status scic_sds_port_default_destruct_handler(struct sci_base_port *base_port)
{
return default_port_handler(base_port, __func__);
}
static enum sci_status scic_sds_port_default_reset_handler(struct sci_base_port *base_port,
u32 timeout)
{
return default_port_handler(base_port, __func__);
}
static enum sci_status scic_sds_port_default_add_phy_handler(struct sci_base_port *base_port,
struct sci_base_phy *base_phy)
{
return default_port_handler(base_port, __func__);
}
static enum sci_status scic_sds_port_default_remove_phy_handler(struct sci_base_port *base_port,
struct sci_base_phy *base_phy)
{
return default_port_handler(base_port, __func__);
}
/**
* scic_sds_port_default_frame_handler
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port unsolicited frame request. It will
* report a warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE Is it even
* possible to receive an unsolicited frame directed to a port object? It
* seems possible if we implementing virtual functions but until then?
*/
static enum sci_status scic_sds_port_default_frame_handler(struct scic_sds_port *sci_port,
u32 frame_index)
{
struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port);
default_port_handler(&sci_port->parent, __func__);
scic_sds_controller_release_frame(scic, frame_index);
return SCI_FAILURE_INVALID_STATE;
}
static enum sci_status scic_sds_port_default_event_handler(struct scic_sds_port *sci_port,
u32 event_code)
{
return default_port_handler(&sci_port->parent, __func__);
}
static void scic_sds_port_default_link_up_handler(struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy)
{
default_port_handler(&sci_port->parent, __func__);
}
static void scic_sds_port_default_link_down_handler(struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy)
{
default_port_handler(&sci_port->parent, __func__);
}
static enum sci_status scic_sds_port_default_start_io_handler(struct scic_sds_port *sci_port,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *sci_req)
{
return default_port_handler(&sci_port->parent, __func__);
}
static enum sci_status scic_sds_port_default_complete_io_handler(struct scic_sds_port *sci_port,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *sci_req)
{
return default_port_handler(&sci_port->parent, __func__);
}
static struct scic_sds_port_state_handler
scic_sds_port_ready_substate_handler_table[SCIC_SDS_PORT_READY_MAX_SUBSTATES] =
{
/* SCIC_SDS_PORT_READY_SUBSTATE_WAITING */
@ -1541,7 +1600,6 @@ scic_sds_port_ready_substate_handler_table[SCIC_SDS_PORT_READY_MAX_SUBSTATES] =
}
};
/**
* scic_sds_port_set_ready_state_handlers() -
*
@ -1584,7 +1642,7 @@ static void scic_sds_port_suspend_port_task_scheduler(
* ongoing requests.
*
*/
void scic_sds_port_post_dummy_request(struct scic_sds_port *sci_port)
static void scic_sds_port_post_dummy_request(struct scic_sds_port *sci_port)
{
u32 command;
struct scu_task_context *task_context;
@ -1609,7 +1667,7 @@ void scic_sds_port_post_dummy_request(struct scic_sds_port *sci_port)
* @sci_port: The port on which the task must be aborted.
*
*/
void scic_sds_port_abort_dummy_request(struct scic_sds_port *sci_port)
static void scic_sds_port_abort_dummy_request(struct scic_sds_port *sci_port)
{
struct scic_sds_controller *scic = sci_port->owning_controller;
u16 tci = sci_port->reserved_tci;
@ -1801,7 +1859,7 @@ static void scic_sds_port_ready_substate_configuring_exit(
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_port_ready_substate_table[] = {
static const struct sci_base_state scic_sds_port_ready_substate_table[] = {
[SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = {
.enter_state = scic_sds_port_ready_substate_waiting_enter,
},
@ -1815,103 +1873,6 @@ const struct sci_base_state scic_sds_port_ready_substate_table[] = {
},
};
static enum sci_status default_port_handler(struct sci_base_port *base_port, const char *func)
{
struct scic_sds_port *sci_port;
sci_port = container_of(base_port, typeof(*sci_port), parent);
dev_warn(sciport_to_dev(sci_port),
"%s: in wrong state: %d\n", func,
sci_base_state_machine_get_state(&base_port->state_machine));
return SCI_FAILURE_INVALID_STATE;
}
enum sci_status scic_sds_port_default_start_handler(struct sci_base_port *base_port)
{
return default_port_handler(base_port, __func__);
}
static enum sci_status scic_sds_port_default_stop_handler(struct sci_base_port *base_port)
{
return default_port_handler(base_port, __func__);
}
enum sci_status scic_sds_port_default_destruct_handler(struct sci_base_port *base_port)
{
return default_port_handler(base_port, __func__);
}
enum sci_status scic_sds_port_default_reset_handler(struct sci_base_port *base_port,
u32 timeout)
{
return default_port_handler(base_port, __func__);
}
static enum sci_status scic_sds_port_default_add_phy_handler(struct sci_base_port *base_port,
struct sci_base_phy *base_phy)
{
return default_port_handler(base_port, __func__);
}
enum sci_status scic_sds_port_default_remove_phy_handler(struct sci_base_port *base_port,
struct sci_base_phy *base_phy)
{
return default_port_handler(base_port, __func__);
}
/**
* scic_sds_port_default_frame_handler
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port unsolicited frame request. It will
* report a warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE Is it even
* possible to receive an unsolicited frame directed to a port object? It
* seems possible if we implementing virtual functions but until then?
*/
enum sci_status scic_sds_port_default_frame_handler(struct scic_sds_port *sci_port,
u32 frame_index)
{
struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port);
default_port_handler(&sci_port->parent, __func__);
scic_sds_controller_release_frame(scic, frame_index);
return SCI_FAILURE_INVALID_STATE;
}
enum sci_status scic_sds_port_default_event_handler(struct scic_sds_port *sci_port,
u32 event_code)
{
return default_port_handler(&sci_port->parent, __func__);
}
void scic_sds_port_default_link_up_handler(struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy)
{
default_port_handler(&sci_port->parent, __func__);
}
void scic_sds_port_default_link_down_handler(struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy)
{
default_port_handler(&sci_port->parent, __func__);
}
enum sci_status scic_sds_port_default_start_io_handler(struct scic_sds_port *sci_port,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *sci_req)
{
return default_port_handler(&sci_port->parent, __func__);
}
static enum sci_status scic_sds_port_default_complete_io_handler(struct scic_sds_port *sci_port,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *sci_req)
{
return default_port_handler(&sci_port->parent, __func__);
}
/**
*
* @port: This is the struct scic_sds_port object on which the io request count will
@ -2248,9 +2209,7 @@ static void scic_sds_port_reset_state_link_down_handler(
scic_sds_port_deactivate_phy(this_port, phy, false);
}
/* --------------------------------------------------------------------------- */
struct scic_sds_port_state_handler
static struct scic_sds_port_state_handler
scic_sds_port_state_handler_table[SCI_BASE_PORT_MAX_STATES] =
{
/* SCI_BASE_PORT_STATE_STOPPED */
@ -2384,7 +2343,7 @@ static void scic_sds_port_disable_port_task_scheduler(
scu_port_task_scheduler_write(this_port, control, pts_control_value);
}
void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port)
static void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port)
{
struct scic_sds_controller *scic = sci_port->owning_controller;
u8 phys_index = sci_port->physical_port_index;
@ -2412,7 +2371,7 @@ void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port)
scic_sds_controller_post_request(scic, command);
}
void scic_sds_port_invalidate_dummy_remote_node(struct scic_sds_port *sci_port)
static void scic_sds_port_invalidate_dummy_remote_node(struct scic_sds_port *sci_port)
{
struct scic_sds_controller *scic = sci_port->owning_controller;
u8 phys_index = sci_port->physical_port_index;
@ -2639,7 +2598,7 @@ static void scic_sds_port_failed_state_enter(struct sci_base_object *object)
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_port_state_table[] = {
static const struct sci_base_state scic_sds_port_state_table[] = {
[SCI_BASE_PORT_STATE_STOPPED] = {
.enter_state = scic_sds_port_stopped_state_enter,
.exit_state = scic_sds_port_stopped_state_exit
@ -2661,3 +2620,34 @@ const struct sci_base_state scic_sds_port_state_table[] = {
}
};
void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 port_index,
struct scic_sds_controller *scic)
{
u32 index;
sci_base_port_construct(&sci_port->parent, scic_sds_port_state_table);
sci_base_state_machine_construct(&sci_port->ready_substate_machine,
&sci_port->parent.parent,
scic_sds_port_ready_substate_table,
SCIC_SDS_PORT_READY_SUBSTATE_WAITING);
sci_port->logical_port_index = SCIC_SDS_DUMMY_PORT;
sci_port->physical_port_index = port_index;
sci_port->active_phy_mask = 0;
sci_port->owning_controller = scic;
sci_port->started_request_count = 0;
sci_port->assigned_device_count = 0;
sci_port->reserved_rni = SCU_DUMMY_INDEX;
sci_port->reserved_tci = SCU_DUMMY_INDEX;
sci_port->timer_handle = NULL;
sci_port->port_task_scheduler_registers = NULL;
for (index = 0; index < SCI_MAX_PHYS; index++)
sci_port->phy_table[index] = NULL;
}

55
drivers/scsi/isci/core/scic_sds_port.h
View File

@ -236,12 +236,6 @@ struct scic_sds_port_state_handler {
};
extern const struct sci_base_state scic_sds_port_state_table[];
extern const struct sci_base_state scic_sds_port_ready_substate_table[];
extern struct scic_sds_port_state_handler scic_sds_port_state_handler_table[];
extern struct scic_sds_port_state_handler scic_sds_port_ready_substate_handler_table[];
/**
* scic_sds_port_get_controller() -
*
@ -351,10 +345,6 @@ void scic_sds_port_setup_transports(
struct scic_sds_port *this_port,
u32 device_id);
void scic_sds_port_activate_phy(
struct scic_sds_port *this_port,
struct scic_sds_phy *phy,
bool do_notify_user);
void scic_sds_port_deactivate_phy(
struct scic_sds_port *this_port,
@ -363,10 +353,6 @@ void scic_sds_port_deactivate_phy(
void scic_sds_port_general_link_up_handler(
struct scic_sds_port *this_port,
struct scic_sds_phy *the_phy,
bool do_notify_user);
bool scic_sds_port_link_detected(
struct scic_sds_port *this_port,
@ -397,47 +383,19 @@ enum sci_status scic_sds_port_complete_io(
/* --------------------------------------------------------------------------- */
void scic_sds_port_update_viit_entry(
struct scic_sds_port *this_port);
/* --------------------------------------------------------------------------- */
enum sci_status scic_sds_port_default_start_handler(
struct sci_base_port *port);
enum sci_status scic_sds_port_default_destruct_handler(
struct sci_base_port *port);
enum sci_status scic_sds_port_default_reset_handler(
struct sci_base_port *port,
u32 timeout);
enum sci_status scic_sds_port_default_remove_phy_handler(
struct sci_base_port *port,
struct sci_base_phy *phy);
enum sci_status scic_sds_port_default_frame_handler(
struct scic_sds_port *port,
u32 frame_index);
enum sci_status scic_sds_port_default_event_handler(
struct scic_sds_port *port,
u32 event_code);
void scic_sds_port_default_link_up_handler(
struct scic_sds_port *this_port,
struct scic_sds_phy *phy);
void scic_sds_port_default_link_down_handler(
struct scic_sds_port *this_port,
struct scic_sds_phy *phy);
enum sci_status scic_sds_port_default_start_io_handler(
struct scic_sds_port *port,
struct scic_sds_remote_device *device,
struct scic_sds_request *io_request);
enum sci_sas_link_rate scic_sds_port_get_max_allowed_speed(
@ -451,12 +409,7 @@ bool scic_sds_port_is_valid_phy_assignment(
struct scic_sds_port *this_port,
u32 phy_index);
bool scic_sds_port_is_phy_mask_valid(
struct scic_sds_port *this_port,
u32 phy_mask);
u32 scic_sds_port_get_phys(
struct scic_sds_port *this_port);
void scic_sds_port_get_sas_address(
struct scic_sds_port *this_port,
@ -470,13 +423,7 @@ void scic_sds_port_get_attached_protocols(
struct scic_sds_port *this_port,
struct sci_sas_identify_address_frame_protocols *protocols);
enum sci_status scic_sds_port_set_phy(
struct scic_sds_port *port,
struct scic_sds_phy *phy);
enum sci_status scic_sds_port_clear_phy(
struct scic_sds_port *port,
struct scic_sds_phy *phy);

48
drivers/scsi/isci/core/scic_sds_remote_device.c
View File

@ -87,30 +87,6 @@ u32 scic_remote_device_get_object_size(void)
+ sizeof(struct scic_sds_remote_node_context);
}
/* --------------------------------------------------------------------------- */
void scic_remote_device_construct(struct scic_sds_port *sci_port,
struct scic_sds_remote_device *sci_dev)
{
sci_dev->owning_port = sci_port;
sci_dev->started_request_count = 0;
sci_dev->rnc = (struct scic_sds_remote_node_context *) &sci_dev[1];
sci_base_remote_device_construct(
&sci_dev->parent,
scic_sds_remote_device_state_table
);
scic_sds_remote_node_context_construct(
sci_dev,
sci_dev->rnc,
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX
);
sci_object_set_association(sci_dev->rnc, sci_dev);
}
enum sci_status scic_remote_device_da_construct(
struct scic_sds_remote_device *sci_dev)
{
@ -1330,7 +1306,7 @@ static enum sci_status scic_sds_remote_device_resetting_state_complete_request_h
/* --------------------------------------------------------------------------- */
const struct scic_sds_remote_device_state_handler scic_sds_remote_device_state_handler_table[] = {
static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_state_handler_table[] = {
[SCI_BASE_REMOTE_DEVICE_STATE_INITIAL] = {
.parent.start_handler = scic_sds_remote_device_default_start_handler,
.parent.stop_handler = scic_sds_remote_device_default_stop_handler,
@ -1741,7 +1717,7 @@ static void scic_sds_remote_device_final_state_enter(
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_remote_device_state_table[] = {
static const struct sci_base_state scic_sds_remote_device_state_table[] = {
[SCI_BASE_REMOTE_DEVICE_STATE_INITIAL] = {
.enter_state = scic_sds_remote_device_initial_state_enter,
},
@ -1771,3 +1747,23 @@ const struct sci_base_state scic_sds_remote_device_state_table[] = {
},
};
void scic_remote_device_construct(struct scic_sds_port *sci_port,
struct scic_sds_remote_device *sci_dev)
{
sci_dev->owning_port = sci_port;
sci_dev->started_request_count = 0;
sci_dev->rnc = (struct scic_sds_remote_node_context *) &sci_dev[1];
sci_base_remote_device_construct(
&sci_dev->parent,
scic_sds_remote_device_state_table
);
scic_sds_remote_node_context_construct(
sci_dev,
sci_dev->rnc,
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX
);
sci_object_set_association(sci_dev->rnc, sci_dev);
}

5
drivers/scsi/isci/core/scic_sds_remote_device.h
View File

@ -316,15 +316,10 @@ struct scic_sds_remote_device_state_handler {
scic_sds_remote_device_frame_handler_t frame_handler;
};
extern const struct sci_base_state scic_sds_remote_device_state_table[];
extern const struct sci_base_state scic_sds_ssp_remote_device_ready_substate_table[];
extern const struct sci_base_state scic_sds_stp_remote_device_ready_substate_table[];
extern const struct sci_base_state scic_sds_smp_remote_device_ready_substate_table[];
extern const struct scic_sds_remote_device_state_handler scic_sds_remote_device_state_handler_table[];
extern const struct scic_sds_remote_device_state_handler scic_sds_stp_remote_device_ready_substate_handler_table[];
extern const struct scic_sds_remote_device_state_handler scic_sds_smp_remote_device_ready_substate_handler_table[];
/**
* scic_sds_remote_device_increment_request_count() -
*

46
drivers/scsi/isci/core/scic_sds_remote_node_context.c
View File

@ -64,26 +64,6 @@
#include "scu_event_codes.h"
#include "scu_task_context.h"
void scic_sds_remote_node_context_construct(
struct scic_sds_remote_device *device,
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->device = device;
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);
}
/**
*
@ -124,7 +104,7 @@ bool scic_sds_remote_node_context_is_ready(
*
* This method will construct the RNC buffer for this remote device object. none
*/
void scic_sds_remote_node_context_construct_buffer(
static void scic_sds_remote_node_context_construct_buffer(
struct scic_sds_remote_node_context *this_rnc)
{
union scu_remote_node_context *rnc;
@ -830,7 +810,7 @@ static enum sci_status scic_sds_remote_node_context_await_suspension_state_event
/* --------------------------------------------------------------------------- */
struct scic_sds_remote_node_context_handlers
static struct scic_sds_remote_node_context_handlers
scic_sds_remote_node_context_state_handler_table[
SCIC_SDS_REMOTE_NODE_CONTEXT_MAX_STATES] =
{
@ -1218,7 +1198,7 @@ static void scic_sds_remote_node_context_await_suspension_state_enter(
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_remote_node_context_state_table[] = {
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,
},
@ -1245,3 +1225,23 @@ const struct sci_base_state scic_sds_remote_node_context_state_table[] = {
},
};
void scic_sds_remote_node_context_construct(
struct scic_sds_remote_device *device,
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->device = device;
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);
}

8
drivers/scsi/isci/core/scic_sds_remote_node_context.h
View File

@ -279,19 +279,11 @@ struct scic_sds_remote_node_context {
struct scic_sds_remote_node_context_handlers *state_handlers;
};
extern const struct sci_base_state scic_sds_remote_node_context_state_table[];
extern struct scic_sds_remote_node_context_handlers
scic_sds_remote_node_context_state_handler_table[
SCIC_SDS_REMOTE_NODE_CONTEXT_MAX_STATES];
void scic_sds_remote_node_context_construct(
struct scic_sds_remote_device *device,
struct scic_sds_remote_node_context *rnc,
u16 remote_node_index);
void scic_sds_remote_node_context_construct_buffer(
struct scic_sds_remote_node_context *rnc);
bool scic_sds_remote_node_context_is_ready(
struct scic_sds_remote_node_context *this_rnc);

309
drivers/scsi/isci/core/scic_sds_request.c
View File

@ -325,59 +325,6 @@ void scic_sds_request_build_sgl(struct scic_sds_request *sds_request)
}
}
/**
* This method initializes common portions of the io request object. This
* includes construction of the struct sci_base_request parent.
* @the_controller: This parameter specifies the controller for which the
* request is being constructed.
* @the_target: This parameter specifies the remote device for which the
* request is being constructed.
* @io_tag: This parameter specifies the IO tag to be utilized for this
* request. This parameter can be set to SCI_CONTROLLER_INVALID_IO_TAG.
* @user_io_request_object: This parameter specifies the user request object
* for which the request is being constructed.
* @this_request: This parameter specifies the request being constructed.
*
*/
static void scic_sds_general_request_construct(
struct scic_sds_controller *the_controller,
struct scic_sds_remote_device *the_target,
u16 io_tag,
void *user_io_request_object,
struct scic_sds_request *this_request)
{
sci_base_request_construct(
&this_request->parent,
scic_sds_request_state_table
);
this_request->io_tag = io_tag;
this_request->user_request = user_io_request_object;
this_request->owning_controller = the_controller;
this_request->target_device = the_target;
this_request->has_started_substate_machine = false;
this_request->protocol = SCIC_NO_PROTOCOL;
this_request->saved_rx_frame_index = SCU_INVALID_FRAME_INDEX;
this_request->device_sequence = scic_sds_remote_device_get_sequence(the_target);
this_request->sci_status = SCI_SUCCESS;
this_request->scu_status = 0;
this_request->post_context = 0xFFFFFFFF;
this_request->is_task_management_request = false;
if (io_tag == SCI_CONTROLLER_INVALID_IO_TAG) {
this_request->was_tag_assigned_by_user = false;
this_request->task_context_buffer = NULL;
} else {
this_request->was_tag_assigned_by_user = true;
this_request->task_context_buffer =
scic_sds_controller_get_task_context_buffer(
this_request->owning_controller, io_tag);
}
}
/**
* This method build the remainder of the IO request object.
* @this_request: This parameter specifies the request object being constructed.
@ -754,16 +701,6 @@ static enum sci_status scic_io_request_construct_sata(struct scic_sds_request *s
return status;
}
/*
* ****************************************************************************
* * SCIC Interface Implementation
* **************************************************************************** */
/* --------------------------------------------------------------------------- */
u32 scic_io_request_get_object_size(void)
{
u32 ssp_request_size;
@ -777,128 +714,6 @@ u32 scic_io_request_get_object_size(void)
return max(ssp_request_size, max(stp_request_size, smp_request_size));
}
/* --------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------- */
enum sci_status scic_io_request_construct(
struct scic_sds_controller *scic_controller,
struct scic_sds_remote_device *scic_remote_device,
u16 io_tag,
void *user_io_request_object,
void *scic_io_request_memory,
struct scic_sds_request **new_scic_io_request_handle)
{
enum sci_status status = SCI_SUCCESS;
struct scic_sds_request *this_request;
struct smp_discover_response_protocols device_protocol;
this_request = (struct scic_sds_request *)scic_io_request_memory;
/* Build the common part of the request */
scic_sds_general_request_construct(
(struct scic_sds_controller *)scic_controller,
(struct scic_sds_remote_device *)scic_remote_device,
io_tag,
user_io_request_object,
this_request
);
if (
scic_sds_remote_device_get_index((struct scic_sds_remote_device *)scic_remote_device)
== SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX
) {
return SCI_FAILURE_INVALID_REMOTE_DEVICE;
}
scic_remote_device_get_protocols(scic_remote_device, &device_protocol);
if (device_protocol.u.bits.attached_ssp_target) {
scic_sds_ssp_io_request_assign_buffers(this_request);
} else if (device_protocol.u.bits.attached_stp_target) {
scic_sds_stp_request_assign_buffers(this_request);
memset(this_request->command_buffer, 0, sizeof(struct sata_fis_reg_h2d));
} else if (device_protocol.u.bits.attached_smp_target) {
scic_sds_smp_request_assign_buffers(this_request);
memset(this_request->command_buffer, 0, sizeof(struct smp_request));
} else {
status = SCI_FAILURE_UNSUPPORTED_PROTOCOL;
}
if (status == SCI_SUCCESS) {
memset(
this_request->task_context_buffer,
0,
SCI_FIELD_OFFSET(struct scu_task_context, sgl_pair_ab)
);
*new_scic_io_request_handle = scic_io_request_memory;
}
return status;
}
/* --------------------------------------------------------------------------- */
enum sci_status scic_task_request_construct(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *remote_device,
u16 io_tag,
void *user_io_request_object,
void *scic_task_request_memory,
struct scic_sds_request **new_scic_task_request_handle)
{
enum sci_status status = SCI_SUCCESS;
struct scic_sds_request *this_request = (struct scic_sds_request *)
scic_task_request_memory;
struct smp_discover_response_protocols device_protocol;
/* Build the common part of the request */
scic_sds_general_request_construct(
(struct scic_sds_controller *)controller,
(struct scic_sds_remote_device *)remote_device,
io_tag,
user_io_request_object,
this_request
);
scic_remote_device_get_protocols(remote_device, &device_protocol);
if (device_protocol.u.bits.attached_ssp_target) {
scic_sds_ssp_task_request_assign_buffers(this_request);
this_request->has_started_substate_machine = true;
/* Construct the started sub-state machine. */
sci_base_state_machine_construct(
&this_request->started_substate_machine,
&this_request->parent.parent,
scic_sds_io_request_started_task_mgmt_substate_table,
SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION
);
} else if (device_protocol.u.bits.attached_stp_target) {
scic_sds_stp_request_assign_buffers(this_request);
} else {
status = SCI_FAILURE_UNSUPPORTED_PROTOCOL;
}
if (status == SCI_SUCCESS) {
this_request->is_task_management_request = true;
memset(this_request->task_context_buffer, 0x00, sizeof(struct scu_task_context));
*new_scic_task_request_handle = scic_task_request_memory;
}
return status;
}
enum sci_status scic_io_request_construct_basic_ssp(
struct scic_sds_request *sci_req)
{
@ -1915,9 +1730,7 @@ static enum sci_status scic_sds_request_aborting_state_frame_handler(
return SCI_SUCCESS;
}
/* --------------------------------------------------------------------------- */
const struct scic_sds_io_request_state_handler scic_sds_request_state_handler_table[] = {
static const struct scic_sds_io_request_state_handler scic_sds_request_state_handler_table[] = {
[SCI_BASE_REQUEST_STATE_INITIAL] = {
.parent.start_handler = scic_sds_request_default_start_handler,
.parent.abort_handler = scic_sds_request_default_abort_handler,
@ -2142,9 +1955,7 @@ static void scic_sds_request_final_state_enter(
);
}
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_request_state_table[] = {
static const struct sci_base_state scic_sds_request_state_table[] = {
[SCI_BASE_REQUEST_STATE_INITIAL] = {
.enter_state = scic_sds_request_initial_state_enter,
},
@ -2166,3 +1977,119 @@ const struct sci_base_state scic_sds_request_state_table[] = {
},
};
static void scic_sds_general_request_construct(struct scic_sds_controller *scic,
struct scic_sds_remote_device *sci_dev,
u16 io_tag,
void *user_io_request_object,
struct scic_sds_request *sci_req)
{
sci_base_request_construct(&sci_req->parent, scic_sds_request_state_table);
sci_req->io_tag = io_tag;
sci_req->user_request = user_io_request_object;
sci_req->owning_controller = scic;
sci_req->target_device = sci_dev;
sci_req->has_started_substate_machine = false;
sci_req->protocol = SCIC_NO_PROTOCOL;
sci_req->saved_rx_frame_index = SCU_INVALID_FRAME_INDEX;
sci_req->device_sequence = scic_sds_remote_device_get_sequence(sci_dev);
sci_req->sci_status = SCI_SUCCESS;
sci_req->scu_status = 0;
sci_req->post_context = 0xFFFFFFFF;
sci_req->is_task_management_request = false;
if (io_tag == SCI_CONTROLLER_INVALID_IO_TAG) {
sci_req->was_tag_assigned_by_user = false;
sci_req->task_context_buffer = NULL;
} else {
sci_req->was_tag_assigned_by_user = true;
sci_req->task_context_buffer =
scic_sds_controller_get_task_context_buffer(scic, io_tag);
}
}
enum sci_status scic_io_request_construct(struct scic_sds_controller *scic,
struct scic_sds_remote_device *sci_dev,
u16 io_tag,
void *user_io_request_object,
struct scic_sds_request *sci_req,
struct scic_sds_request **new_scic_io_request_handle)
{
enum sci_status status = SCI_SUCCESS;
struct smp_discover_response_protocols device_protocol;
/* Build the common part of the request */
scic_sds_general_request_construct(scic, sci_dev, io_tag,
user_io_request_object, sci_req);
if (sci_dev->rnc->remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX)
return SCI_FAILURE_INVALID_REMOTE_DEVICE;
scic_remote_device_get_protocols(sci_dev, &device_protocol);
if (device_protocol.u.bits.attached_ssp_target) {
scic_sds_ssp_io_request_assign_buffers(sci_req);
} else if (device_protocol.u.bits.attached_stp_target) {
scic_sds_stp_request_assign_buffers(sci_req);
memset(sci_req->command_buffer, 0, sizeof(struct sata_fis_reg_h2d));
} else if (device_protocol.u.bits.attached_smp_target) {
scic_sds_smp_request_assign_buffers(sci_req);
memset(sci_req->command_buffer, 0, sizeof(struct smp_request));
} else {
status = SCI_FAILURE_UNSUPPORTED_PROTOCOL;
}
if (status == SCI_SUCCESS) {
memset(sci_req->task_context_buffer, 0,
SCI_FIELD_OFFSET(struct scu_task_context, sgl_pair_ab));
*new_scic_io_request_handle = sci_req;
}
return status;
}
enum sci_status scic_task_request_construct(struct scic_sds_controller *scic,
struct scic_sds_remote_device *sci_dev,
u16 io_tag,
void *user_io_request_object,
struct scic_sds_request *sci_req,
struct scic_sds_request **new_sci_req)
{
enum sci_status status = SCI_SUCCESS;
struct smp_discover_response_protocols device_protocol;
/* Build the common part of the request */
scic_sds_general_request_construct(scic, sci_dev, io_tag,
user_io_request_object,
sci_req);
scic_remote_device_get_protocols(sci_dev, &device_protocol);
if (device_protocol.u.bits.attached_ssp_target) {
scic_sds_ssp_task_request_assign_buffers(sci_req);
sci_req->has_started_substate_machine = true;
/* Construct the started sub-state machine. */
sci_base_state_machine_construct(
&sci_req->started_substate_machine,
&sci_req->parent.parent,
scic_sds_io_request_started_task_mgmt_substate_table,
SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION
);
} else if (device_protocol.u.bits.attached_stp_target) {
scic_sds_stp_request_assign_buffers(sci_req);
} else {
status = SCI_FAILURE_UNSUPPORTED_PROTOCOL;
}
if (status == SCI_SUCCESS) {
sci_req->is_task_management_request = true;
memset(sci_req->task_context_buffer, 0, sizeof(struct scu_task_context));
*new_sci_req = sci_req;
}
return status;
}

7
drivers/scsi/isci/core/scic_sds_request.h
View File

@ -256,14 +256,7 @@ struct scic_sds_io_request_state_handler {
};
extern const struct sci_base_state scic_sds_request_state_table[];
extern const struct scic_sds_io_request_state_handler scic_sds_request_state_handler_table[];
extern const struct sci_base_state scic_sds_io_request_started_task_mgmt_substate_table[];
extern const struct scic_sds_io_request_state_handler scic_sds_ssp_task_request_started_substate_handler_table[];
extern const struct sci_base_state scic_sds_smp_request_started_substate_table[];
extern const struct scic_sds_io_request_state_handler scic_sds_smp_request_started_substate_handler_table[];
/**
*

2
drivers/scsi/isci/core/scic_sds_smp_remote_device.c
View File

@ -207,7 +207,7 @@ static enum sci_status scic_sds_smp_remote_device_ready_cmd_substate_frame_handl
/* --------------------------------------------------------------------------- */
const struct scic_sds_remote_device_state_handler scic_sds_smp_remote_device_ready_substate_handler_table[] = {
static const struct scic_sds_remote_device_state_handler scic_sds_smp_remote_device_ready_substate_handler_table[] = {
[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = {
.parent.start_handler = scic_sds_remote_device_default_start_handler,
.parent.stop_handler = scic_sds_remote_device_ready_state_stop_handler,

137
drivers/scsi/isci/core/scic_sds_smp_request.c
View File

@ -142,73 +142,6 @@ void scic_sds_smp_request_assign_buffers(
}
}
/**
* This method is called by the SCI user to build an SMP IO request.
*
* - The user must have previously called scic_io_request_construct() on the
* supplied IO request. Indicate if the controller successfully built the IO
* request. SCI_SUCCESS This value is returned if the IO request was
* successfully built. SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned
* if the remote_device does not support the SMP protocol.
* SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the user did not
* properly set the association between the SCIC IO request and the user's IO
* request. Please refer to the sci_object_set_association() routine for more
* information.
*/
enum sci_status scic_io_request_construct_smp(
struct scic_sds_request *sci_req)
{
struct smp_request *smp_req = kmalloc(sizeof(*smp_req), GFP_KERNEL);
if (!smp_req)
return SCI_FAILURE_INSUFFICIENT_RESOURCES;
sci_req->protocol = SCIC_SMP_PROTOCOL;
sci_req->has_started_substate_machine = true;
/* Construct the started sub-state machine. */
sci_base_state_machine_construct(
&sci_req->started_substate_machine,
&sci_req->parent.parent,
scic_sds_smp_request_started_substate_table,
SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE
);
/* Construct the SMP SCU Task Context */
memcpy(smp_req, sci_req->command_buffer, sizeof(*smp_req));
/*
* Look at the SMP requests' header fields; for certain SAS 1.x SMP
* functions under SAS 2.0, a zero request length really indicates
* a non-zero default length. */
if (smp_req->header.request_length == 0) {
switch (smp_req->header.function) {
case SMP_FUNCTION_DISCOVER:
case SMP_FUNCTION_REPORT_PHY_ERROR_LOG:
case SMP_FUNCTION_REPORT_PHY_SATA:
case SMP_FUNCTION_REPORT_ROUTE_INFORMATION:
smp_req->header.request_length = 2;
break;
case SMP_FUNCTION_CONFIGURE_ROUTE_INFORMATION:
case SMP_FUNCTION_PHY_CONTROL:
case SMP_FUNCTION_PHY_TEST:
smp_req->header.request_length = 9;
break;
/* Default - zero is a valid default for 2.0. */
}
}
scu_smp_request_construct_task_context(sci_req, smp_req);
sci_base_state_machine_change_state(
&sci_req->parent.state_machine,
SCI_BASE_REQUEST_STATE_CONSTRUCTED
);
kfree(smp_req);
return SCI_SUCCESS;
}
/**
* This method is called by the SCI user to build an SMP pass-through IO
@ -595,7 +528,7 @@ static enum sci_status scic_sds_smp_request_await_tc_completion_tc_completion_ha
}
const struct scic_sds_io_request_state_handler scic_sds_smp_request_started_substate_handler_table[] = {
static const struct scic_sds_io_request_state_handler scic_sds_smp_request_started_substate_handler_table[] = {
[SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE] = {
.parent.start_handler = scic_sds_request_default_start_handler,
.parent.abort_handler = scic_sds_request_started_state_abort_handler,
@ -658,7 +591,7 @@ static void scic_sds_smp_request_started_await_tc_completion_substate_enter(
);
}
const struct sci_base_state scic_sds_smp_request_started_substate_table[] = {
static const struct sci_base_state scic_sds_smp_request_started_substate_table[] = {
[SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE] = {
.enter_state = scic_sds_smp_request_started_await_response_substate_enter,
},
@ -667,3 +600,69 @@ const struct sci_base_state scic_sds_smp_request_started_substate_table[] = {
},
};
/**
* This method is called by the SCI user to build an SMP IO request.
*
* - The user must have previously called scic_io_request_construct() on the
* supplied IO request. Indicate if the controller successfully built the IO
* request. SCI_SUCCESS This value is returned if the IO request was
* successfully built. SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned
* if the remote_device does not support the SMP protocol.
* SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the user did not
* properly set the association between the SCIC IO request and the user's IO
* request. Please refer to the sci_object_set_association() routine for more
* information.
*/
enum sci_status scic_io_request_construct_smp(struct scic_sds_request *sci_req)
{
struct smp_request *smp_req = kmalloc(sizeof(*smp_req), GFP_KERNEL);
if (!smp_req)
return SCI_FAILURE_INSUFFICIENT_RESOURCES;
sci_req->protocol = SCIC_SMP_PROTOCOL;
sci_req->has_started_substate_machine = true;
/* Construct the started sub-state machine. */
sci_base_state_machine_construct(
&sci_req->started_substate_machine,
&sci_req->parent.parent,
scic_sds_smp_request_started_substate_table,
SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE
);
/* Construct the SMP SCU Task Context */
memcpy(smp_req, sci_req->command_buffer, sizeof(*smp_req));
/*
* Look at the SMP requests' header fields; for certain SAS 1.x SMP
* functions under SAS 2.0, a zero request length really indicates
* a non-zero default length. */
if (smp_req->header.request_length == 0) {
switch (smp_req->header.function) {
case SMP_FUNCTION_DISCOVER:
case SMP_FUNCTION_REPORT_PHY_ERROR_LOG:
case SMP_FUNCTION_REPORT_PHY_SATA:
case SMP_FUNCTION_REPORT_ROUTE_INFORMATION:
smp_req->header.request_length = 2;
break;
case SMP_FUNCTION_CONFIGURE_ROUTE_INFORMATION:
case SMP_FUNCTION_PHY_CONTROL:
case SMP_FUNCTION_PHY_TEST:
smp_req->header.request_length = 9;
break;
/* Default - zero is a valid default for 2.0. */
}
}
scu_smp_request_construct_task_context(sci_req, smp_req);
sci_base_state_machine_change_state(
&sci_req->parent.state_machine,
SCI_BASE_REQUEST_STATE_CONSTRUCTED
);
kfree(smp_req);
return SCI_SUCCESS;
}

2
drivers/scsi/isci/core/scic_sds_ssp_request.c
View File

@ -193,7 +193,7 @@ static enum sci_status scic_sds_ssp_task_request_await_tc_response_frame_handler
return SCI_SUCCESS;
}
const struct scic_sds_io_request_state_handler scic_sds_ssp_task_request_started_substate_handler_table[] = {
static const struct scic_sds_io_request_state_handler scic_sds_ssp_task_request_started_substate_handler_table[] = {
[SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = {
.parent.start_handler = scic_sds_request_default_start_handler,
.parent.abort_handler = scic_sds_request_started_state_abort_handler,

11
drivers/scsi/isci/core/scic_sds_stp_pio_request.h
View File

@ -99,18 +99,7 @@ enum _SCIC_SDS_STP_REQUEST_STARTED_PIO_SUBSTATES {
SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE,
};
/* --------------------------------------------------------------------------- */
extern const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_pio_substate_handler_table[];
extern const struct sci_base_state scic_sds_stp_request_started_pio_substate_table[];
/* --------------------------------------------------------------------------- */
struct scic_sds_stp_request;
struct scu_sgl_element *scic_sds_stp_request_pio_get_next_sgl(
struct scic_sds_stp_request *this_request);
#endif /* _SCIC_SDS_SATA_PIO_REQUEST_H_ */

2
drivers/scsi/isci/core/scic_sds_stp_remote_device.c
View File

@ -565,7 +565,7 @@ enum sci_status scic_sds_stp_remote_device_ready_atapi_error_substate_event_hand
/* --------------------------------------------------------------------------- */
const struct scic_sds_remote_device_state_handler scic_sds_stp_remote_device_ready_substate_handler_table[] = {
static const struct scic_sds_remote_device_state_handler scic_sds_stp_remote_device_ready_substate_handler_table[] = {
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = {
.parent.start_handler = scic_sds_remote_device_default_start_handler,
.parent.stop_handler = scic_sds_remote_device_ready_state_stop_handler,

251
drivers/scsi/isci/core/scic_sds_stp_request.c
View File

@ -267,7 +267,7 @@ static void scu_sata_reqeust_construct_task_context(
* This method will perform any general sata request construction. What part of
* SATA IO request construction is general? none
*/
void scic_sds_stp_non_ncq_request_construct(
static void scic_sds_stp_non_ncq_request_construct(
struct scic_sds_request *this_request)
{
this_request->has_started_substate_machine = true;
@ -318,33 +318,6 @@ static void scic_sds_stp_optimized_request_construct(struct scic_sds_request *sc
}
}
/**
*
* @sci_req: This parameter specifies the request to be constructed.
*
* This method will construct the STP UDMA request and its associated TC data.
* This method returns an indication as to whether the construction was
* successful. SCI_SUCCESS Currently this method always returns this value.
*/
enum sci_status scic_sds_stp_udma_request_construct(struct scic_sds_request *sci_req,
u32 len,
enum dma_data_direction dir)
{
scic_sds_stp_non_ncq_request_construct(sci_req);
scic_sds_stp_optimized_request_construct(sci_req, SCU_TASK_TYPE_DMA_IN,
len, dir);
sci_base_state_machine_construct(
&sci_req->started_substate_machine,
&sci_req->parent.parent,
scic_sds_stp_request_started_udma_substate_table,
SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE
);
return SCI_SUCCESS;
}
/**
*
* @sci_req: This parameter specifies the request to be constructed.
@ -364,7 +337,7 @@ enum sci_status scic_sds_stp_ncq_request_construct(struct scic_sds_request *sci_
}
/**
*
* scu_stp_raw_request_construct_task_context -
* @this_request: This parameter specifies the STP request object for which to
* construct a RAW command frame task context.
* @task_context: This parameter specifies the SCU specific task context buffer
@ -373,7 +346,7 @@ enum sci_status scic_sds_stp_ncq_request_construct(struct scic_sds_request *sci_
* This method performs the operations common to all SATA/STP requests
* utilizing the raw frame method. none
*/
void scu_stp_raw_request_construct_task_context(
static void scu_stp_raw_request_construct_task_context(
struct scic_sds_stp_request *this_request,
struct scu_task_context *task_context)
{
@ -386,59 +359,6 @@ void scu_stp_raw_request_construct_task_context(
task_context->transfer_length_bytes = sizeof(struct sata_fis_reg_h2d) - sizeof(u32);
}
/**
*
* @this_request: This parameter specifies the core request object to
* construction into an STP/SATA non-data request.
*
* This method will construct the STP Non-data request and its associated TC
* data. A non-data request essentially behaves like a 0 length read request
* in the SCU. This method currently always returns SCI_SUCCESS
*/
enum sci_status scic_sds_stp_non_data_request_construct(
struct scic_sds_request *this_request)
{
scic_sds_stp_non_ncq_request_construct(this_request);
/* Build the STP task context structure */
scu_stp_raw_request_construct_task_context(
(struct scic_sds_stp_request *)this_request,
this_request->task_context_buffer
);
sci_base_state_machine_construct(
&this_request->started_substate_machine,
&this_request->parent.parent,
scic_sds_stp_request_started_non_data_substate_table,
SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE
);
return SCI_SUCCESS;
}
enum sci_status scic_sds_stp_soft_reset_request_construct(
struct scic_sds_request *this_request)
{
scic_sds_stp_non_ncq_request_construct(this_request);
/* Build the STP task context structure */
scu_stp_raw_request_construct_task_context(
(struct scic_sds_stp_request *)this_request,
this_request->task_context_buffer
);
sci_base_state_machine_construct(
&this_request->started_substate_machine,
&this_request->parent.parent,
scic_sds_stp_request_started_soft_reset_substate_table,
SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE
);
return SCI_SUCCESS;
}
void scic_stp_io_request_set_ncq_tag(
struct scic_sds_request *req,
u16 ncq_tag)
@ -474,7 +394,7 @@ void *scic_stp_io_request_get_d2h_reg_address(
* - if there are more SGL element pairs - advance to the next pair and return
* element A struct scu_sgl_element*
*/
struct scu_sgl_element *scic_sds_stp_request_pio_get_next_sgl(struct scic_sds_stp_request *stp_req)
static struct scu_sgl_element *scic_sds_stp_request_pio_get_next_sgl(struct scic_sds_stp_request *stp_req)
{
struct scu_sgl_element *current_sgl;
struct scic_sds_request *sci_req = &stp_req->parent;
@ -508,60 +428,6 @@ struct scu_sgl_element *scic_sds_stp_request_pio_get_next_sgl(struct scic_sds_st
return current_sgl;
}
/**
*
* @scic_io_request: The core request object which is cast to a SATA PIO
* request object.
*
* This method will construct the SATA PIO request. This method returns an
* indication as to whether the construction was successful. SCI_SUCCESS
* Currently this method always returns this value.
*/
enum sci_status scic_sds_stp_pio_request_construct(
struct scic_sds_request *scic_io_request,
u8 sat_protocol,
bool copy_rx_frame)
{
struct scic_sds_stp_request *this_request;
this_request = (struct scic_sds_stp_request *)scic_io_request;
scic_sds_stp_non_ncq_request_construct(&this_request->parent);
scu_stp_raw_request_construct_task_context(
this_request, this_request->parent.task_context_buffer
);
this_request->type.pio.current_transfer_bytes = 0;
this_request->type.pio.ending_error = 0;
this_request->type.pio.ending_status = 0;
this_request->type.pio.request_current.sgl_offset = 0;
this_request->type.pio.request_current.sgl_set = SCU_SGL_ELEMENT_PAIR_A;
this_request->type.pio.sat_protocol = sat_protocol;
if (copy_rx_frame) {
scic_sds_request_build_sgl(&this_request->parent);
/*
* Since the IO request copy of the TC contains the same data as
* the actual TC this pointer is vaild for either. */
this_request->type.pio.request_current.sgl_pair =
&this_request->parent.task_context_buffer->sgl_pair_ab;
} else {
/* The user does not want the data copied to the SGL buffer location */
this_request->type.pio.request_current.sgl_pair = NULL;
}
sci_base_state_machine_construct(
&this_request->parent.started_substate_machine,
&this_request->parent.parent.parent,
scic_sds_stp_request_started_pio_substate_table,
SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE
);
return SCI_SUCCESS;
}
/**
*
* @this_request:
@ -689,7 +555,7 @@ static enum sci_status scic_sds_stp_request_non_data_await_d2h_frame_handler(
/* --------------------------------------------------------------------------- */
const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_non_data_substate_handler_table[] = {
static const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_non_data_substate_handler_table[] = {
[SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE] = {
.parent.start_handler = scic_sds_request_default_start_handler,
.parent.abort_handler = scic_sds_request_started_state_abort_handler,
@ -740,7 +606,7 @@ static void scic_sds_stp_request_started_non_data_await_d2h_enter(
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_stp_request_started_non_data_substate_table[] = {
static const struct sci_base_state scic_sds_stp_request_started_non_data_substate_table[] = {
[SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE] = {
.enter_state = scic_sds_stp_request_started_non_data_await_h2d_completion_enter,
},
@ -749,6 +615,23 @@ const struct sci_base_state scic_sds_stp_request_started_non_data_substate_table
},
};
enum sci_status scic_sds_stp_non_data_request_construct(struct scic_sds_request *sci_req)
{
struct scic_sds_stp_request *stp_req = container_of(sci_req, typeof(*stp_req), parent);
scic_sds_stp_non_ncq_request_construct(sci_req);
/* Build the STP task context structure */
scu_stp_raw_request_construct_task_context(stp_req, sci_req->task_context_buffer);
sci_base_state_machine_construct(&sci_req->started_substate_machine,
&sci_req->parent.parent,
scic_sds_stp_request_started_non_data_substate_table,
SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE);
return SCI_SUCCESS;
}
#define SCU_MAX_FRAME_BUFFER_SIZE 0x400 /* 1K is the maximum SCU frame data payload */
/**
@ -1330,7 +1213,7 @@ static enum sci_status scic_sds_stp_request_pio_data_in_await_data_event_handler
/* --------------------------------------------------------------------------- */
const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_pio_substate_handler_table[] = {
static const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_pio_substate_handler_table[] = {
[SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE] = {
.parent.start_handler = scic_sds_request_default_start_handler,
.parent.abort_handler = scic_sds_request_started_state_abort_handler,
@ -1422,7 +1305,7 @@ static void scic_sds_stp_request_started_pio_data_out_transmit_data_enter(
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_stp_request_started_pio_substate_table[] = {
static const struct sci_base_state scic_sds_stp_request_started_pio_substate_table[] = {
[SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE] = {
.enter_state = scic_sds_stp_request_started_pio_await_h2d_completion_enter,
},
@ -1437,6 +1320,45 @@ const struct sci_base_state scic_sds_stp_request_started_pio_substate_table[] =
}
};
enum sci_status scic_sds_stp_pio_request_construct(struct scic_sds_request *sci_req,
u8 sat_protocol,
bool copy_rx_frame)
{
struct scic_sds_stp_request *stp_req = container_of(sci_req, typeof(*stp_req), parent);
struct scic_sds_stp_pio_request *pio = &stp_req->type.pio;
scic_sds_stp_non_ncq_request_construct(sci_req);
scu_stp_raw_request_construct_task_context(stp_req,
sci_req->task_context_buffer);
pio->current_transfer_bytes = 0;
pio->ending_error = 0;
pio->ending_status = 0;
pio->request_current.sgl_offset = 0;
pio->request_current.sgl_set = SCU_SGL_ELEMENT_PAIR_A;
pio->sat_protocol = sat_protocol;
if (copy_rx_frame) {
scic_sds_request_build_sgl(sci_req);
/* Since the IO request copy of the TC contains the same data as
* the actual TC this pointer is vaild for either.
*/
pio->request_current.sgl_pair = &sci_req->task_context_buffer->sgl_pair_ab;
} else {
/* The user does not want the data copied to the SGL buffer location */
pio->request_current.sgl_pair = NULL;
}
sci_base_state_machine_construct(&sci_req->started_substate_machine,
&sci_req->parent.parent,
scic_sds_stp_request_started_pio_substate_table,
SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE);
return SCI_SUCCESS;
}
static void scic_sds_stp_request_udma_complete_request(
struct scic_sds_request *this_request,
u32 scu_status,
@ -1594,7 +1516,7 @@ static enum sci_status scic_sds_stp_request_udma_await_d2h_reg_fis_frame_handler
/* --------------------------------------------------------------------------- */
const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_udma_substate_handler_table[] = {
static const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_udma_substate_handler_table[] = {
[SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE] = {
.parent.start_handler = scic_sds_request_default_start_handler,
.parent.abort_handler = scic_sds_request_started_state_abort_handler,
@ -1648,7 +1570,7 @@ static void scic_sds_stp_request_started_udma_await_d2h_reg_fis_enter(
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_stp_request_started_udma_substate_table[] = {
static const struct sci_base_state scic_sds_stp_request_started_udma_substate_table[] = {
[SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE] = {
.enter_state = scic_sds_stp_request_started_udma_await_tc_completion_enter,
},
@ -1657,6 +1579,25 @@ const struct sci_base_state scic_sds_stp_request_started_udma_substate_table[] =
},
};
enum sci_status scic_sds_stp_udma_request_construct(struct scic_sds_request *sci_req,
u32 len,
enum dma_data_direction dir)
{
scic_sds_stp_non_ncq_request_construct(sci_req);
scic_sds_stp_optimized_request_construct(sci_req, SCU_TASK_TYPE_DMA_IN,
len, dir);
sci_base_state_machine_construct(
&sci_req->started_substate_machine,
&sci_req->parent.parent,
scic_sds_stp_request_started_udma_substate_table,
SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE
);
return SCI_SUCCESS;
}
/**
*
* @this_request:
@ -1831,7 +1772,7 @@ static enum sci_status scic_sds_stp_request_soft_reset_await_d2h_frame_handler(
/* --------------------------------------------------------------------------- */
const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_soft_reset_substate_handler_table[] = {
static const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_soft_reset_substate_handler_table[] = {
[SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE] = {
.parent.start_handler = scic_sds_request_default_start_handler,
.parent.abort_handler = scic_sds_request_started_state_abort_handler,
@ -1925,9 +1866,7 @@ static void scic_sds_stp_request_started_soft_reset_await_d2h_response_enter(
);
}
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_stp_request_started_soft_reset_substate_table[] = {
static const struct sci_base_state scic_sds_stp_request_started_soft_reset_substate_table[] = {
[SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE] = {
.enter_state = scic_sds_stp_request_started_soft_reset_await_h2d_asserted_completion_enter,
},
@ -1939,3 +1878,19 @@ const struct sci_base_state scic_sds_stp_request_started_soft_reset_substate_tab
},
};
enum sci_status scic_sds_stp_soft_reset_request_construct(struct scic_sds_request *sci_req)
{
struct scic_sds_stp_request *stp_req = container_of(sci_req, typeof(*stp_req), parent);
scic_sds_stp_non_ncq_request_construct(sci_req);
/* Build the STP task context structure */
scu_stp_raw_request_construct_task_context(stp_req, sci_req->task_context_buffer);
sci_base_state_machine_construct(&sci_req->started_substate_machine,
&sci_req->parent.parent,
scic_sds_stp_request_started_soft_reset_substate_table,
SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE);
return SCI_SUCCESS;
}

23
drivers/scsi/isci/core/scic_sds_stp_request.h
View File

@ -76,7 +76,7 @@ struct scic_sds_stp_request {
u32 udma;
struct {
struct scic_sds_stp_pio_request {
/**
* Total transfer for the entire PIO request recorded at request constuction
* time.
@ -169,26 +169,8 @@ enum SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_SUBSTATES {
SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_D2H_RESPONSE_FRAME_SUBSTATE,
};
extern const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_udma_substate_handler_table[];
extern const struct sci_base_state scic_sds_stp_request_started_udma_substate_table[];
extern const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_non_data_substate_handler_table[];
extern const struct sci_base_state scic_sds_stp_request_started_non_data_substate_table[];
extern const struct scic_sds_io_request_state_handler scic_sds_stp_request_started_soft_reset_substate_handler_table[];
extern const struct sci_base_state scic_sds_stp_request_started_soft_reset_substate_table[];
/* --------------------------------------------------------------------------- */
u32 scic_sds_stp_request_get_object_size(void);
void scic_sds_stp_non_ncq_request_construct(
struct scic_sds_request *this_request);
enum sci_status scic_sds_stp_pio_request_construct(
struct scic_sds_request *scic_io_request,
u8 sat_protocol,
@ -214,8 +196,5 @@ enum sci_status scic_sds_stp_ncq_request_construct(
u32 transfer_length,
enum dma_data_direction dir);
void scu_stp_raw_request_construct_task_context(
struct scic_sds_stp_request *this_request,
struct scu_task_context *task_context);
#endif /* _SCIC_SDS_STP_REQUEST_T_ */

2
drivers/scsi/isci/firmware/README
View File

@ -32,5 +32,5 @@ Header Type - u8: 0xf
==============================================================================
Place isci_firmware.bin in /lib/firmware
Be sure to recreate the initramfs image to include the firmware.
Be sure to recreate the initramfs image to include the firmware.

2
drivers/scsi/isci/port.c
View File

@ -201,7 +201,7 @@ void isci_port_link_up(
call_status = scic_sata_phy_get_properties(phy,
&sata_phy_properties);
/*
/*
* XXX I am concerned about this "assert". shouldn't we
* handle the return appropriately?
*/

73
drivers/scsi/isci/request.c
View File

@ -1263,47 +1263,6 @@ enum dma_data_direction isci_request_io_request_get_data_direction(
*
* physical address in the specified sge.
*/
dma_addr_t isci_request_sge_get_address_field(
struct isci_request *request,
void *sge_address)
{
struct sas_task *task = isci_request_access_task(request);
dma_addr_t ret;
struct isci_host *isci_host = isci_host_from_sas_ha(
task->dev->port->ha);
dev_dbg(&isci_host->pdev->dev,
"%s: request = %p, sge_address = %p\n",
__func__,
request,
sge_address);
if (task->data_dir == PCI_DMA_NONE)
return 0;
/* the case where num_scatter == 0 is special, in that
* task->scatter is the actual buffer address, not an sgl.
* so a map single is required here.
*/
if ((task->num_scatter == 0) &&
!sas_protocol_ata(task->task_proto)) {
ret = dma_map_single(
&isci_host->pdev->dev,
task->scatter,
task->total_xfer_len,
task->data_dir
);
request->zero_scatter_daddr = ret;
} else
ret = sg_dma_address(((struct scatterlist *)sge_address));
dev_dbg(&isci_host->pdev->dev,
"%s: bus address = %lx\n",
__func__,
(unsigned long)ret);
return ret;
}
/**
@ -1314,38 +1273,6 @@ dma_addr_t isci_request_sge_get_address_field(
*
* length field value in the specified sge.
*/
u32 isci_request_sge_get_length_field(
struct isci_request *request,
void *sge_address)
{
struct sas_task *task = isci_request_access_task(request);
int ret;
dev_dbg(&request->isci_host->pdev->dev,
"%s: request = %p, sge_address = %p\n",
__func__,
request,
sge_address);
if (task->data_dir == PCI_DMA_NONE)
return 0;
/* the case where num_scatter == 0 is special, in that
* task->scatter is the actual buffer address, not an sgl.
* so we return total_xfer_len here.
*/
if (task->num_scatter == 0)
ret = task->total_xfer_len;
else
ret = sg_dma_len((struct scatterlist *)sge_address);
dev_dbg(&request->isci_host->pdev->dev,
"%s: len = %d\n",
__func__,
ret);
return ret;
}
/**

6
drivers/scsi/isci/request.h
View File

@ -391,13 +391,7 @@ static inline void *isci_request_io_request_get_next_sge(
return ret;
}
dma_addr_t isci_request_sge_get_address_field(
struct isci_request *request,
void *sge_address);
u32 isci_request_sge_get_length_field(
struct isci_request *request,
void *sge_address);
void *isci_request_ssp_io_request_get_cdb_address(
struct isci_request *request);

11
drivers/scsi/isci/task.c
View File

@ -588,7 +588,7 @@ void isci_task_build_tmf(
tmf->cb_data = cb_data;
}
void isci_task_build_abort_task_tmf(
static void isci_task_build_abort_task_tmf(
struct isci_tmf *tmf,
struct isci_remote_device *isci_device,
enum isci_tmf_function_codes code,
@ -1528,15 +1528,6 @@ void isci_task_request_complete(
*
* lun for specified task request.
*/
u32 isci_task_ssp_request_get_lun(struct isci_request *request)
{
struct isci_tmf *isci_tmf = isci_request_access_tmf(request);
dev_dbg(&request->isci_host->pdev->dev,
"%s: lun = %d\n", __func__, isci_tmf->lun[0]);
/* @todo: build lun from array of bytes to 32 bit */
return isci_tmf->lun[0];
}
/**
* isci_task_ssp_request_get_function() - This function is called by the sci

10
drivers/scsi/isci/task.h
View File

@ -202,8 +202,6 @@ u16 isci_task_ssp_request_get_io_tag_to_manage(
u8 isci_task_ssp_request_get_function(
struct isci_request *request);
u32 isci_task_ssp_request_get_lun(
struct isci_request *request);
void *isci_task_ssp_request_get_response_data_address(
struct isci_request *request);
@ -226,14 +224,6 @@ void isci_task_build_tmf(
void *),
void *cb_data);
void isci_task_build_abort_task_tmf(
struct isci_tmf *tmf,
struct isci_remote_device *isci_device,
enum isci_tmf_function_codes code,
void (*tmf_sent_cb)(
enum isci_tmf_cb_state,
struct isci_tmf *, void *),
struct isci_request *old_request);
int isci_task_execute_tmf(
struct isci_host *isci_host,