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isci: state machine cleanup

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This cleans up several areas of the state machine mechanism:

 o Rename sci_base_state_machine_change_state to sci_change_state
 o Remove sci_base_state_machine_get_state function
 o Rename 'state_machine' struct member to 'sm' in client structs
 o Shorten the name of request states
 o Shorten state machine state names as follows:
        SCI_BASE_CONTROLLER_STATE_xxx to SCIC_xxx
        SCI_BASE_PHY_STATE_xxx to SCI_PHY_xxx
        SCIC_SDS_PHY_STARTING_SUBSTATE_xxx to SCI_PHY_SUB_xxx
        SCI_BASE_PORT_STATE_xxx to SCI_PORT_xxx and
        SCIC_SDS_PORT_READY_SUBSTATE_xxx to SCI_PORT_SUB_xxx
        SCI_BASE_REMOTE_DEVICE_STATE_xxx to SCI_DEV_xxx
        SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_xxx to SCI_STP_DEV_xxx
        SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_xxx to SCI_SMP_DEV_xxx
        SCIC_SDS_REMOTE_NODE_CONTEXT_xxx_STATE to SCI_RNC_xxx

Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Edmund Nadolski 2011-06-02 00:10:43 +00:00 committed by Dan Williams
parent 8d2c65c09c
commit e301370ac5
15 changed files with 1076 additions and 1160 deletions
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201
drivers/scsi/isci/host.c
View file

@ -635,8 +635,7 @@ static void scic_sds_controller_error_handler(struct scic_sds_controller *scic)
dev_err(scic_to_dev(scic), "%s: status: %#x\n", __func__,
interrupt_status);
sci_base_state_machine_change_state(&scic->state_machine,
SCI_BASE_CONTROLLER_STATE_FAILED);
sci_change_state(&scic->sm, SCIC_FAILED);
return;
}
@ -895,14 +894,12 @@ static void scic_sds_controller_transition_to_ready(
{
struct isci_host *ihost = scic_to_ihost(scic);
if (scic->state_machine.current_state_id ==
SCI_BASE_CONTROLLER_STATE_STARTING) {
if (scic->sm.current_state_id == SCIC_STARTING) {
/*
* We move into the ready state, because some of the phys/ports
* may be up and operational.
*/
sci_base_state_machine_change_state(&scic->state_machine,
SCI_BASE_CONTROLLER_STATE_READY);
sci_change_state(&scic->sm, SCIC_READY);
isci_host_start_complete(ihost, status);
}
@ -912,18 +909,18 @@ static bool is_phy_starting(struct scic_sds_phy *sci_phy)
{
enum scic_sds_phy_states state;
state = sci_phy->state_machine.current_state_id;
state = sci_phy->sm.current_state_id;
switch (state) {
case SCI_BASE_PHY_STATE_STARTING:
case SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF:
case SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL:
case SCI_PHY_STARTING:
case SCI_PHY_SUB_INITIAL:
case SCI_PHY_SUB_AWAIT_SAS_SPEED_EN:
case SCI_PHY_SUB_AWAIT_IAF_UF:
case SCI_PHY_SUB_AWAIT_SAS_POWER:
case SCI_PHY_SUB_AWAIT_SATA_POWER:
case SCI_PHY_SUB_AWAIT_SATA_PHY_EN:
case SCI_PHY_SUB_AWAIT_SATA_SPEED_EN:
case SCI_PHY_SUB_AWAIT_SIG_FIS_UF:
case SCI_PHY_SUB_FINAL:
return true;
default:
return false;
@ -957,7 +954,7 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro
for (index = 0; index < SCI_MAX_PHYS; index++) {
sci_phy = &ihost->phys[index].sci;
state = sci_phy->state_machine.current_state_id;
state = sci_phy->sm.current_state_id;
if (!phy_get_non_dummy_port(sci_phy))
continue;
@ -968,12 +965,9 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro
* - have an indication of a connected device and it has
* finished the link training process.
*/
if ((sci_phy->is_in_link_training == false &&
state == SCI_BASE_PHY_STATE_INITIAL) ||
(sci_phy->is_in_link_training == false &&
state == SCI_BASE_PHY_STATE_STOPPED) ||
(sci_phy->is_in_link_training == true &&
is_phy_starting(sci_phy))) {
if ((sci_phy->is_in_link_training == false && state == SCI_PHY_INITIAL) ||
(sci_phy->is_in_link_training == false && state == SCI_PHY_STOPPED) ||
(sci_phy->is_in_link_training == true && is_phy_starting(sci_phy))) {
is_controller_start_complete = false;
break;
}
@ -1059,8 +1053,7 @@ static enum sci_status scic_controller_start(struct scic_sds_controller *scic,
enum sci_status result;
u16 index;
if (scic->state_machine.current_state_id !=
SCI_BASE_CONTROLLER_STATE_INITIALIZED) {
if (scic->sm.current_state_id != SCIC_INITIALIZED) {
dev_warn(scic_to_dev(scic),
"SCIC Controller start operation requested in "
"invalid state\n");
@ -1108,8 +1101,7 @@ static enum sci_status scic_controller_start(struct scic_sds_controller *scic,
sci_mod_timer(&scic->timer, timeout);
sci_base_state_machine_change_state(&scic->state_machine,
SCI_BASE_CONTROLLER_STATE_STARTING);
sci_change_state(&scic->sm, SCIC_STARTING);
return SCI_SUCCESS;
}
@ -1279,8 +1271,7 @@ static void isci_host_completion_routine(unsigned long data)
static enum sci_status scic_controller_stop(struct scic_sds_controller *scic,
u32 timeout)
{
if (scic->state_machine.current_state_id !=
SCI_BASE_CONTROLLER_STATE_READY) {
if (scic->sm.current_state_id != SCIC_READY) {
dev_warn(scic_to_dev(scic),
"SCIC Controller stop operation requested in "
"invalid state\n");
@ -1288,8 +1279,7 @@ static enum sci_status scic_controller_stop(struct scic_sds_controller *scic,
}
sci_mod_timer(&scic->timer, timeout);
sci_base_state_machine_change_state(&scic->state_machine,
SCI_BASE_CONTROLLER_STATE_STOPPING);
sci_change_state(&scic->sm, SCIC_STOPPING);
return SCI_SUCCESS;
}
@ -1307,17 +1297,16 @@ static enum sci_status scic_controller_stop(struct scic_sds_controller *scic,
*/
static enum sci_status scic_controller_reset(struct scic_sds_controller *scic)
{
switch (scic->state_machine.current_state_id) {
case SCI_BASE_CONTROLLER_STATE_RESET:
case SCI_BASE_CONTROLLER_STATE_READY:
case SCI_BASE_CONTROLLER_STATE_STOPPED:
case SCI_BASE_CONTROLLER_STATE_FAILED:
switch (scic->sm.current_state_id) {
case SCIC_RESET:
case SCIC_READY:
case SCIC_STOPPED:
case SCIC_FAILED:
/*
* The reset operation is not a graceful cleanup, just
* perform the state transition.
*/
sci_base_state_machine_change_state(&scic->state_machine,
SCI_BASE_CONTROLLER_STATE_RESETTING);
sci_change_state(&scic->sm, SCIC_RESETTING);
return SCI_SUCCESS;
default:
dev_warn(scic_to_dev(scic),
@ -1416,15 +1405,14 @@ static void isci_user_parameters_get(
static void scic_sds_controller_initial_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine);
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm);
sci_base_state_machine_change_state(&scic->state_machine,
SCI_BASE_CONTROLLER_STATE_RESET);
sci_change_state(&scic->sm, SCIC_RESET);
}
static inline void scic_sds_controller_starting_state_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine);
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm);
sci_del_timer(&scic->timer);
}
@ -1551,7 +1539,7 @@ static enum sci_status scic_controller_set_interrupt_coalescence(
static void scic_sds_controller_ready_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine);
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm);
/* set the default interrupt coalescence number and timeout value. */
scic_controller_set_interrupt_coalescence(scic, 0x10, 250);
@ -1559,7 +1547,7 @@ static void scic_sds_controller_ready_state_enter(struct sci_base_state_machine
static void scic_sds_controller_ready_state_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine);
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm);
/* disable interrupt coalescence. */
scic_controller_set_interrupt_coalescence(scic, 0, 0);
@ -1650,7 +1638,7 @@ static enum sci_status scic_sds_controller_stop_devices(struct scic_sds_controll
static void scic_sds_controller_stopping_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine);
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm);
/* Stop all of the components for this controller */
scic_sds_controller_stop_phys(scic);
@ -1660,7 +1648,7 @@ static void scic_sds_controller_stopping_state_enter(struct sci_base_state_machi
static void scic_sds_controller_stopping_state_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine);
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm);
sci_del_timer(&scic->timer);
}
@ -1691,36 +1679,35 @@ static void scic_sds_controller_reset_hardware(struct scic_sds_controller *scic)
static void scic_sds_controller_resetting_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine);
struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm);
scic_sds_controller_reset_hardware(scic);
sci_base_state_machine_change_state(&scic->state_machine,
SCI_BASE_CONTROLLER_STATE_RESET);
sci_change_state(&scic->sm, SCIC_RESET);
}
static const struct sci_base_state scic_sds_controller_state_table[] = {
[SCI_BASE_CONTROLLER_STATE_INITIAL] = {
[SCIC_INITIAL] = {
.enter_state = scic_sds_controller_initial_state_enter,
},
[SCI_BASE_CONTROLLER_STATE_RESET] = {},
[SCI_BASE_CONTROLLER_STATE_INITIALIZING] = {},
[SCI_BASE_CONTROLLER_STATE_INITIALIZED] = {},
[SCI_BASE_CONTROLLER_STATE_STARTING] = {
[SCIC_RESET] = {},
[SCIC_INITIALIZING] = {},
[SCIC_INITIALIZED] = {},
[SCIC_STARTING] = {
.exit_state = scic_sds_controller_starting_state_exit,
},
[SCI_BASE_CONTROLLER_STATE_READY] = {
[SCIC_READY] = {
.enter_state = scic_sds_controller_ready_state_enter,
.exit_state = scic_sds_controller_ready_state_exit,
},
[SCI_BASE_CONTROLLER_STATE_RESETTING] = {
[SCIC_RESETTING] = {
.enter_state = scic_sds_controller_resetting_state_enter,
},
[SCI_BASE_CONTROLLER_STATE_STOPPING] = {
[SCIC_STOPPING] = {
.enter_state = scic_sds_controller_stopping_state_enter,
.exit_state = scic_sds_controller_stopping_state_exit,
},
[SCI_BASE_CONTROLLER_STATE_STOPPED] = {},
[SCI_BASE_CONTROLLER_STATE_FAILED] = {}
[SCIC_STOPPED] = {},
[SCIC_FAILED] = {}
};
static void scic_sds_controller_set_default_config_parameters(struct scic_sds_controller *scic)
@ -1774,7 +1761,7 @@ static void controller_timeout(unsigned long data)
struct sci_timer *tmr = (struct sci_timer *)data;
struct scic_sds_controller *scic = container_of(tmr, typeof(*scic), timer);
struct isci_host *ihost = scic_to_ihost(scic);
struct sci_base_state_machine *sm = &scic->state_machine;
struct sci_base_state_machine *sm = &scic->sm;
unsigned long flags;
spin_lock_irqsave(&ihost->scic_lock, flags);
@ -1782,10 +1769,10 @@ static void controller_timeout(unsigned long data)
if (tmr->cancel)
goto done;
if (sm->current_state_id == SCI_BASE_CONTROLLER_STATE_STARTING)
if (sm->current_state_id == SCIC_STARTING)
scic_sds_controller_transition_to_ready(scic, SCI_FAILURE_TIMEOUT);
else if (sm->current_state_id == SCI_BASE_CONTROLLER_STATE_STOPPING) {
sci_base_state_machine_change_state(sm, SCI_BASE_CONTROLLER_STATE_FAILED);
else if (sm->current_state_id == SCIC_STOPPING) {
sci_change_state(sm, SCIC_FAILED);
isci_host_stop_complete(ihost, SCI_FAILURE_TIMEOUT);
} else /* / @todo Now what do we want to do in this case? */
dev_err(scic_to_dev(scic),
@ -1820,11 +1807,11 @@ static enum sci_status scic_controller_construct(struct scic_sds_controller *sci
struct isci_host *ihost = scic_to_ihost(scic);
u8 i;
sci_base_state_machine_construct(&scic->state_machine,
sci_base_state_machine_construct(&scic->sm,
scic_sds_controller_state_table,
SCI_BASE_CONTROLLER_STATE_INITIAL);
SCIC_INITIAL);
sci_base_state_machine_start(&scic->state_machine);
sci_base_state_machine_start(&scic->sm);
scic->scu_registers = scu_base;
scic->smu_registers = smu_base;
@ -1899,11 +1886,11 @@ int scic_oem_parameters_validate(struct scic_sds_oem_params *oem)
static enum sci_status scic_oem_parameters_set(struct scic_sds_controller *scic,
union scic_oem_parameters *scic_parms)
{
u32 state = scic->state_machine.current_state_id;
u32 state = scic->sm.current_state_id;
if (state == SCI_BASE_CONTROLLER_STATE_RESET ||
state == SCI_BASE_CONTROLLER_STATE_INITIALIZING ||
state == SCI_BASE_CONTROLLER_STATE_INITIALIZED) {
if (state == SCIC_RESET ||
state == SCIC_INITIALIZING ||
state == SCIC_INITIALIZED) {
if (scic_oem_parameters_validate(&scic_parms->sds1))
return SCI_FAILURE_INVALID_PARAMETER_VALUE;
@ -2168,10 +2155,8 @@ static enum sci_status scic_controller_set_mode(struct scic_sds_controller *scic
{
enum sci_status status = SCI_SUCCESS;
if ((scic->state_machine.current_state_id ==
SCI_BASE_CONTROLLER_STATE_INITIALIZING) ||
(scic->state_machine.current_state_id ==
SCI_BASE_CONTROLLER_STATE_INITIALIZED)) {
if ((scic->sm.current_state_id == SCIC_INITIALIZING) ||
(scic->sm.current_state_id == SCIC_INITIALIZED)) {
switch (operating_mode) {
case SCI_MODE_SPEED:
scic->remote_node_entries = SCI_MAX_REMOTE_DEVICES;
@ -2216,20 +2201,19 @@ static void scic_sds_controller_initialize_power_control(struct scic_sds_control
static enum sci_status scic_controller_initialize(struct scic_sds_controller *scic)
{
struct sci_base_state_machine *sm = &scic->state_machine;
struct sci_base_state_machine *sm = &scic->sm;
enum sci_status result = SCI_SUCCESS;
struct isci_host *ihost = scic_to_ihost(scic);
u32 index, state;
if (scic->state_machine.current_state_id !=
SCI_BASE_CONTROLLER_STATE_RESET) {
if (scic->sm.current_state_id != SCIC_RESET) {
dev_warn(scic_to_dev(scic),
"SCIC Controller initialize operation requested "
"in invalid state\n");
return SCI_FAILURE_INVALID_STATE;
}
sci_base_state_machine_change_state(sm, SCI_BASE_CONTROLLER_STATE_INITIALIZING);
sci_change_state(sm, SCIC_INITIALIZING);
sci_init_timer(&scic->phy_timer, phy_startup_timeout);
@ -2374,10 +2358,10 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc
/* Advance the controller state machine */
if (result == SCI_SUCCESS)
state = SCI_BASE_CONTROLLER_STATE_INITIALIZED;
state = SCIC_INITIALIZED;
else
state = SCI_BASE_CONTROLLER_STATE_FAILED;
sci_base_state_machine_change_state(sm, state);
state = SCIC_FAILED;
sci_change_state(sm, state);
return result;
}
@ -2386,11 +2370,11 @@ static enum sci_status scic_user_parameters_set(
struct scic_sds_controller *scic,
union scic_user_parameters *scic_parms)
{
u32 state = scic->state_machine.current_state_id;
u32 state = scic->sm.current_state_id;
if (state == SCI_BASE_CONTROLLER_STATE_RESET ||
state == SCI_BASE_CONTROLLER_STATE_INITIALIZING ||
state == SCI_BASE_CONTROLLER_STATE_INITIALIZED) {
if (state == SCIC_RESET ||
state == SCIC_INITIALIZING ||
state == SCIC_INITIALIZED) {
u16 index;
/*
@ -2612,15 +2596,15 @@ int isci_host_init(struct isci_host *isci_host)
void scic_sds_controller_link_up(struct scic_sds_controller *scic,
struct scic_sds_port *port, struct scic_sds_phy *phy)
{
switch (scic->state_machine.current_state_id) {
case SCI_BASE_CONTROLLER_STATE_STARTING:
switch (scic->sm.current_state_id) {
case SCIC_STARTING:
sci_del_timer(&scic->phy_timer);
scic->phy_startup_timer_pending = false;
scic->port_agent.link_up_handler(scic, &scic->port_agent,
port, phy);
scic_sds_controller_start_next_phy(scic);
break;
case SCI_BASE_CONTROLLER_STATE_READY:
case SCIC_READY:
scic->port_agent.link_up_handler(scic, &scic->port_agent,
port, phy);
break;
@ -2628,16 +2612,16 @@ void scic_sds_controller_link_up(struct scic_sds_controller *scic,
dev_dbg(scic_to_dev(scic),
"%s: SCIC Controller linkup event from phy %d in "
"unexpected state %d\n", __func__, phy->phy_index,
scic->state_machine.current_state_id);
scic->sm.current_state_id);
}
}
void scic_sds_controller_link_down(struct scic_sds_controller *scic,
struct scic_sds_port *port, struct scic_sds_phy *phy)
{
switch (scic->state_machine.current_state_id) {
case SCI_BASE_CONTROLLER_STATE_STARTING:
case SCI_BASE_CONTROLLER_STATE_READY:
switch (scic->sm.current_state_id) {
case SCIC_STARTING:
case SCIC_READY:
scic->port_agent.link_down_handler(scic, &scic->port_agent,
port, phy);
break;
@ -2647,7 +2631,7 @@ void scic_sds_controller_link_down(struct scic_sds_controller *scic,
"unexpected state %d\n",
__func__,
phy->phy_index,
scic->state_machine.current_state_id);
scic->sm.current_state_id);
}
}
@ -2663,8 +2647,7 @@ static bool scic_sds_controller_has_remote_devices_stopping(
for (index = 0; index < controller->remote_node_entries; index++) {
if ((controller->device_table[index] != NULL) &&
(controller->device_table[index]->state_machine.current_state_id
== SCI_BASE_REMOTE_DEVICE_STATE_STOPPING))
(controller->device_table[index]->sm.current_state_id == SCI_DEV_STOPPING))
return true;
}
@ -2678,19 +2661,17 @@ static bool scic_sds_controller_has_remote_devices_stopping(
void scic_sds_controller_remote_device_stopped(struct scic_sds_controller *scic,
struct scic_sds_remote_device *sci_dev)
{
if (scic->state_machine.current_state_id !=
SCI_BASE_CONTROLLER_STATE_STOPPING) {
if (scic->sm.current_state_id != SCIC_STOPPING) {
dev_dbg(scic_to_dev(scic),
"SCIC Controller 0x%p remote device stopped event "
"from device 0x%p in unexpected state %d\n",
scic, sci_dev,
scic->state_machine.current_state_id);
scic->sm.current_state_id);
return;
}
if (!scic_sds_controller_has_remote_devices_stopping(scic)) {
sci_base_state_machine_change_state(&scic->state_machine,
SCI_BASE_CONTROLLER_STATE_STOPPED);
sci_change_state(&scic->sm, SCIC_STOPPED);
}
}
@ -2948,8 +2929,7 @@ enum sci_status scic_controller_start_io(
{
enum sci_status status;
if (scic->state_machine.current_state_id !=
SCI_BASE_CONTROLLER_STATE_READY) {
if (scic->sm.current_state_id != SCIC_READY) {
dev_warn(scic_to_dev(scic), "invalid state to start I/O");
return SCI_FAILURE_INVALID_STATE;
}
@ -2986,8 +2966,7 @@ enum sci_status scic_controller_terminate_request(
{
enum sci_status status;
if (scic->state_machine.current_state_id !=
SCI_BASE_CONTROLLER_STATE_READY) {
if (scic->sm.current_state_id != SCIC_READY) {
dev_warn(scic_to_dev(scic),
"invalid state to terminate request\n");
return SCI_FAILURE_INVALID_STATE;
@ -3037,11 +3016,11 @@ enum sci_status scic_controller_complete_io(
enum sci_status status;
u16 index;
switch (scic->state_machine.current_state_id) {
case SCI_BASE_CONTROLLER_STATE_STOPPING:
switch (scic->sm.current_state_id) {
case SCIC_STOPPING:
/* XXX: Implement this function */
return SCI_FAILURE;
case SCI_BASE_CONTROLLER_STATE_READY:
case SCIC_READY:
status = scic_sds_remote_device_complete_io(scic, rdev, request);
if (status != SCI_SUCCESS)
return status;
@ -3060,8 +3039,7 @@ enum sci_status scic_controller_continue_io(struct scic_sds_request *sci_req)
{
struct scic_sds_controller *scic = sci_req->owning_controller;
if (scic->state_machine.current_state_id !=
SCI_BASE_CONTROLLER_STATE_READY) {
if (scic->sm.current_state_id != SCIC_READY) {
dev_warn(scic_to_dev(scic), "invalid state to continue I/O");
return SCI_FAILURE_INVALID_STATE;
}
@ -3107,8 +3085,7 @@ enum sci_task_status scic_controller_start_task(
{
enum sci_status status;
if (scic->state_machine.current_state_id !=
SCI_BASE_CONTROLLER_STATE_READY) {
if (scic->sm.current_state_id != SCIC_READY) {
dev_warn(scic_to_dev(scic),
"%s: SCIC Controller starting task from invalid "
"state\n",

25
drivers/scsi/isci/host.h
View file

@ -134,7 +134,7 @@ struct scic_sds_controller {
* This field contains the information for the base controller state
* machine.
*/
struct sci_base_state_machine state_machine;
struct sci_base_state_machine sm;
/**
* Timer for controller start/stop operations.
@ -359,7 +359,7 @@ enum scic_sds_controller_states {
/**
* Simply the initial state for the base controller state machine.
*/
SCI_BASE_CONTROLLER_STATE_INITIAL = 0,
SCIC_INITIAL = 0,
/**
* This state indicates that the controller is reset. The memory for
@ -368,7 +368,7 @@ enum scic_sds_controller_states {
* This state is entered from the INITIAL state.
* This state is entered from the RESETTING state.
*/
SCI_BASE_CONTROLLER_STATE_RESET,
SCIC_RESET,
/**
* This state is typically an action state that indicates the controller
@ -376,28 +376,28 @@ enum scic_sds_controller_states {
* are permitted.
* This state is entered from the RESET state.
*/
SCI_BASE_CONTROLLER_STATE_INITIALIZING,
SCIC_INITIALIZING,
/**
* This state indicates that the controller has been successfully
* initialized. In this state no new IO operations are permitted.
* This state is entered from the INITIALIZING state.
*/
SCI_BASE_CONTROLLER_STATE_INITIALIZED,
SCIC_INITIALIZED,
/**
* This state indicates the the controller is in the process of becoming
* ready (i.e. starting). In this state no new IO operations are permitted.
* This state is entered from the INITIALIZED state.
*/
SCI_BASE_CONTROLLER_STATE_STARTING,
SCIC_STARTING,
/**
* This state indicates the controller is now ready. Thus, the user
* is able to perform IO operations on the controller.
* This state is entered from the STARTING state.
*/
SCI_BASE_CONTROLLER_STATE_READY,
SCIC_READY,
/**
* This state is typically an action state that indicates the controller
@ -408,7 +408,7 @@ enum scic_sds_controller_states {
* This state is entered from the FAILED state.
* This state is entered from the STOPPED state.
*/
SCI_BASE_CONTROLLER_STATE_RESETTING,
SCIC_RESETTING,
/**
* This state indicates that the controller is in the process of stopping.
@ -416,14 +416,14 @@ enum scic_sds_controller_states {
* operations are allowed to complete.
* This state is entered from the READY state.
*/
SCI_BASE_CONTROLLER_STATE_STOPPING,
SCIC_STOPPING,
/**
* This state indicates that the controller has successfully been stopped.
* In this state no new IO operations are permitted.
* This state is entered from the STOPPING state.
*/
SCI_BASE_CONTROLLER_STATE_STOPPED,
SCIC_STOPPED,
/**
* This state indicates that the controller could not successfully be
@ -433,10 +433,7 @@ enum scic_sds_controller_states {
* This state is entered from the STOPPING state.
* This state is entered from the RESETTING state.
*/
SCI_BASE_CONTROLLER_STATE_FAILED,
SCI_BASE_CONTROLLER_MAX_STATES
SCIC_FAILED,
};

244
drivers/scsi/isci/phy.c
View file

@ -249,8 +249,7 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy,
writel(0x1F4, &sci_phy->link_layer_registers->link_layer_hang_detection_timeout);
/* We can exit the initial state to the stopped state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STOPPED);
sci_change_state(&sci_phy->sm, SCI_PHY_STOPPED);
return SCI_SUCCESS;
}
@ -273,8 +272,7 @@ static void phy_sata_timeout(unsigned long data)
__func__,
sci_phy);
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
done:
spin_unlock_irqrestore(&ihost->scic_lock, flags);
}
@ -342,8 +340,7 @@ enum sci_status scic_sds_phy_initialize(
/*
* There is nothing that needs to be done in this state just
* transition to the stopped state. */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STOPPED);
sci_change_state(&sci_phy->sm, SCI_PHY_STOPPED);
return SCI_SUCCESS;
}
@ -436,34 +433,33 @@ void scic_sds_phy_get_protocols(struct scic_sds_phy *sci_phy,
enum sci_status scic_sds_phy_start(struct scic_sds_phy *sci_phy)
{
enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;
enum scic_sds_phy_states state = sci_phy->sm.current_state_id;
if (state != SCI_BASE_PHY_STATE_STOPPED) {
if (state != SCI_PHY_STOPPED) {
dev_dbg(sciphy_to_dev(sci_phy),
"%s: in wrong state: %d\n", __func__, state);
return SCI_FAILURE_INVALID_STATE;
}
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
return SCI_SUCCESS;
}
enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy)
{
enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;
enum scic_sds_phy_states state = sci_phy->sm.current_state_id;
switch (state) {
case SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN:
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF:
case SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL:
case SCI_BASE_PHY_STATE_READY:
case SCI_PHY_SUB_INITIAL:
case SCI_PHY_SUB_AWAIT_OSSP_EN:
case SCI_PHY_SUB_AWAIT_SAS_SPEED_EN:
case SCI_PHY_SUB_AWAIT_SAS_POWER:
case SCI_PHY_SUB_AWAIT_SATA_POWER:
case SCI_PHY_SUB_AWAIT_SATA_PHY_EN:
case SCI_PHY_SUB_AWAIT_SATA_SPEED_EN:
case SCI_PHY_SUB_AWAIT_SIG_FIS_UF:
case SCI_PHY_SUB_FINAL:
case SCI_PHY_READY:
break;
default:
dev_dbg(sciphy_to_dev(sci_phy),
@ -471,32 +467,30 @@ enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy)
return SCI_FAILURE_INVALID_STATE;
}
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STOPPED);
sci_change_state(&sci_phy->sm, SCI_PHY_STOPPED);
return SCI_SUCCESS;
}
enum sci_status scic_sds_phy_reset(struct scic_sds_phy *sci_phy)
{
enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;
enum scic_sds_phy_states state = sci_phy->sm.current_state_id;
if (state != SCI_BASE_PHY_STATE_READY) {
if (state != SCI_PHY_READY) {
dev_dbg(sciphy_to_dev(sci_phy),
"%s: in wrong state: %d\n", __func__, state);
return SCI_FAILURE_INVALID_STATE;
}
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_RESETTING);
sci_change_state(&sci_phy->sm, SCI_PHY_RESETTING);
return SCI_SUCCESS;
}
enum sci_status scic_sds_phy_consume_power_handler(struct scic_sds_phy *sci_phy)
{
enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;
enum scic_sds_phy_states state = sci_phy->sm.current_state_id;
switch (state) {
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER: {
case SCI_PHY_SUB_AWAIT_SAS_POWER: {
u32 enable_spinup;
enable_spinup = readl(&sci_phy->link_layer_registers->notify_enable_spinup_control);
@ -504,12 +498,11 @@ enum sci_status scic_sds_phy_consume_power_handler(struct scic_sds_phy *sci_phy)
writel(enable_spinup, &sci_phy->link_layer_registers->notify_enable_spinup_control);
/* Change state to the final state this substate machine has run to completion */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL);
sci_change_state(&sci_phy->sm, SCI_PHY_SUB_FINAL);
return SCI_SUCCESS;
}
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER: {
case SCI_PHY_SUB_AWAIT_SATA_POWER: {
u32 scu_sas_pcfg_value;
/* Release the spinup hold state and reset the OOB state machine */
@ -528,8 +521,7 @@ enum sci_status scic_sds_phy_consume_power_handler(struct scic_sds_phy *sci_phy)
&sci_phy->link_layer_registers->phy_configuration);
/* Change state to the final state this substate machine has run to completion */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN);
sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_PHY_EN);
return SCI_SUCCESS;
}
@ -566,10 +558,7 @@ static void scic_sds_phy_start_sas_link_training(
writel(phy_control,
&sci_phy->link_layer_registers->phy_configuration);
sci_base_state_machine_change_state(
&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN
);
sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SAS_SPEED_EN);
sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SAS;
}
@ -585,10 +574,7 @@ static void scic_sds_phy_start_sas_link_training(
static void scic_sds_phy_start_sata_link_training(
struct scic_sds_phy *sci_phy)
{
sci_base_state_machine_change_state(
&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER
);
sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_POWER);
sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA;
}
@ -611,17 +597,16 @@ static void scic_sds_phy_complete_link_training(
{
sci_phy->max_negotiated_speed = max_link_rate;
sci_base_state_machine_change_state(&sci_phy->state_machine,
next_state);
sci_change_state(&sci_phy->sm, next_state);
}
enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
u32 event_code)
{
enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;
enum scic_sds_phy_states state = sci_phy->sm.current_state_id;
switch (state) {
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN:
case SCI_PHY_SUB_AWAIT_OSSP_EN:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_SAS_PHY_DETECTED:
scic_sds_phy_start_sas_link_training(sci_phy);
@ -640,7 +625,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
return SCI_FAILURE;
}
return SCI_SUCCESS;
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN:
case SCI_PHY_SUB_AWAIT_SAS_SPEED_EN:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_SAS_PHY_DETECTED:
/*
@ -652,21 +637,21 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
scic_sds_phy_complete_link_training(
sci_phy,
SAS_LINK_RATE_1_5_GBPS,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF);
SCI_PHY_SUB_AWAIT_IAF_UF);
break;
case SCU_EVENT_SAS_30:
case SCU_EVENT_SAS_30_SSC:
scic_sds_phy_complete_link_training(
sci_phy,
SAS_LINK_RATE_3_0_GBPS,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF);
SCI_PHY_SUB_AWAIT_IAF_UF);
break;
case SCU_EVENT_SAS_60:
case SCU_EVENT_SAS_60_SSC:
scic_sds_phy_complete_link_training(
sci_phy,
SAS_LINK_RATE_6_0_GBPS,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF);
SCI_PHY_SUB_AWAIT_IAF_UF);
break;
case SCU_EVENT_SATA_SPINUP_HOLD:
/*
@ -676,8 +661,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
break;
case SCU_EVENT_LINK_FAILURE:
/* Link failure change state back to the starting state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
break;
default:
dev_warn(sciphy_to_dev(sci_phy),
@ -689,7 +673,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
break;
}
return SCI_SUCCESS;
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF:
case SCI_PHY_SUB_AWAIT_IAF_UF:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_SAS_PHY_DETECTED:
/* Backup the state machine */
@ -706,8 +690,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
case SCU_EVENT_LINK_FAILURE:
case SCU_EVENT_HARD_RESET_RECEIVED:
/* Start the oob/sn state machine over again */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
break;
default:
dev_warn(sciphy_to_dev(sci_phy),
@ -717,12 +700,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
return SCI_FAILURE;
}
return SCI_SUCCESS;
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER:
case SCI_PHY_SUB_AWAIT_SAS_POWER:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_LINK_FAILURE:
/* Link failure change state back to the starting state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
break;
default:
dev_warn(sciphy_to_dev(sci_phy),
@ -733,12 +715,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
return SCI_FAILURE;
}
return SCI_SUCCESS;
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER:
case SCI_PHY_SUB_AWAIT_SATA_POWER:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_LINK_FAILURE:
/* Link failure change state back to the starting state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
break;
case SCU_EVENT_SATA_SPINUP_HOLD:
/* These events are received every 10ms and are
@ -762,12 +743,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
return SCI_FAILURE;
}
return SCI_SUCCESS;
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN:
case SCI_PHY_SUB_AWAIT_SATA_PHY_EN:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_LINK_FAILURE:
/* Link failure change state back to the starting state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
break;
case SCU_EVENT_SATA_SPINUP_HOLD:
/* These events might be received since we dont know how many may be in
@ -778,8 +758,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA;
/* We have received the SATA PHY notification change state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN);
sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_SPEED_EN);
break;
case SCU_EVENT_SAS_PHY_DETECTED:
/* There has been a change in the phy type before OOB/SN for the
@ -797,7 +776,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
return SCI_FAILURE;;
}
return SCI_SUCCESS;
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN:
case SCI_PHY_SUB_AWAIT_SATA_SPEED_EN:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_SATA_PHY_DETECTED:
/*
@ -809,26 +788,25 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
scic_sds_phy_complete_link_training(
sci_phy,
SAS_LINK_RATE_1_5_GBPS,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF);
SCI_PHY_SUB_AWAIT_SIG_FIS_UF);
break;
case SCU_EVENT_SATA_30:
case SCU_EVENT_SATA_30_SSC:
scic_sds_phy_complete_link_training(
sci_phy,
SAS_LINK_RATE_3_0_GBPS,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF);
SCI_PHY_SUB_AWAIT_SIG_FIS_UF);
break;
case SCU_EVENT_SATA_60:
case SCU_EVENT_SATA_60_SSC:
scic_sds_phy_complete_link_training(
sci_phy,
SAS_LINK_RATE_6_0_GBPS,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF);
SCI_PHY_SUB_AWAIT_SIG_FIS_UF);
break;
case SCU_EVENT_LINK_FAILURE:
/* Link failure change state back to the starting state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
break;
case SCU_EVENT_SAS_PHY_DETECTED:
/*
@ -846,18 +824,16 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
}
return SCI_SUCCESS;
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF:
case SCI_PHY_SUB_AWAIT_SIG_FIS_UF:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_SATA_PHY_DETECTED:
/* Backup the state machine */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN);
sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_SPEED_EN);
break;
case SCU_EVENT_LINK_FAILURE:
/* Link failure change state back to the starting state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
break;
default:
@ -870,12 +846,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
return SCI_FAILURE;
}
return SCI_SUCCESS;
case SCI_BASE_PHY_STATE_READY:
case SCI_PHY_READY:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_LINK_FAILURE:
/* Link failure change state back to the starting state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
break;
case SCU_EVENT_BROADCAST_CHANGE:
/* Broadcast change received. Notify the port. */
@ -892,12 +867,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
return SCI_FAILURE_INVALID_STATE;
}
return SCI_SUCCESS;
case SCI_BASE_PHY_STATE_RESETTING:
case SCI_PHY_RESETTING:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_HARD_RESET_TRANSMITTED:
/* Link failure change state back to the starting state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
break;
default:
dev_warn(sciphy_to_dev(sci_phy),
@ -919,12 +893,12 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy,
u32 frame_index)
{
enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;
enum scic_sds_phy_states state = sci_phy->sm.current_state_id;
struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
enum sci_status result;
switch (state) {
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF: {
case SCI_PHY_SUB_AWAIT_IAF_UF: {
u32 *frame_words;
struct sas_identify_frame iaf;
struct isci_phy *iphy = sci_phy_to_iphy(sci_phy);
@ -946,15 +920,14 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy,
* state since there are no power requirements for
* expander phys.
*/
state = SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL;
state = SCI_PHY_SUB_FINAL;
} else {
/* We got the IAF we can now go to the await spinup
* semaphore state
*/
state = SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER;
state = SCI_PHY_SUB_AWAIT_SAS_POWER;
}
sci_base_state_machine_change_state(&sci_phy->state_machine,
state);
sci_change_state(&sci_phy->sm, state);
result = SCI_SUCCESS;
} else
dev_warn(sciphy_to_dev(sci_phy),
@ -965,7 +938,7 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy,
scic_sds_controller_release_frame(scic, frame_index);
return result;
}
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF: {
case SCI_PHY_SUB_AWAIT_SIG_FIS_UF: {
struct dev_to_host_fis *frame_header;
u32 *fis_frame_data;
struct isci_phy *iphy = sci_phy_to_iphy(sci_phy);
@ -989,8 +962,7 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy,
fis_frame_data);
/* got IAF we can now go to the await spinup semaphore state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL);
sci_change_state(&sci_phy->sm, SCI_PHY_SUB_FINAL);
result = SCI_SUCCESS;
} else
@ -1014,16 +986,15 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy,
static void scic_sds_phy_starting_initial_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
/* This is just an temporary state go off to the starting state */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN);
sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_OSSP_EN);
}
static void scic_sds_phy_starting_await_sas_power_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
scic_sds_controller_power_control_queue_insert(scic, sci_phy);
@ -1031,7 +1002,7 @@ static void scic_sds_phy_starting_await_sas_power_substate_enter(struct sci_base
static void scic_sds_phy_starting_await_sas_power_substate_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
scic_sds_controller_power_control_queue_remove(scic, sci_phy);
@ -1039,7 +1010,7 @@ static void scic_sds_phy_starting_await_sas_power_substate_exit(struct sci_base_
static void scic_sds_phy_starting_await_sata_power_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
scic_sds_controller_power_control_queue_insert(scic, sci_phy);
@ -1047,7 +1018,7 @@ static void scic_sds_phy_starting_await_sata_power_substate_enter(struct sci_bas
static void scic_sds_phy_starting_await_sata_power_substate_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
scic_sds_controller_power_control_queue_remove(scic, sci_phy);
@ -1055,35 +1026,35 @@ static void scic_sds_phy_starting_await_sata_power_substate_exit(struct sci_base
static void scic_sds_phy_starting_await_sata_phy_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
sci_mod_timer(&sci_phy->sata_timer, SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT);
}
static void scic_sds_phy_starting_await_sata_phy_substate_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
sci_del_timer(&sci_phy->sata_timer);
}
static void scic_sds_phy_starting_await_sata_speed_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
sci_mod_timer(&sci_phy->sata_timer, SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT);
}
static void scic_sds_phy_starting_await_sata_speed_substate_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
sci_del_timer(&sci_phy->sata_timer);
}
static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
if (scic_sds_port_link_detected(sci_phy->owning_port, sci_phy)) {
@ -1103,20 +1074,19 @@ static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(struct sci_bas
static void scic_sds_phy_starting_await_sig_fis_uf_substate_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
sci_del_timer(&sci_phy->sata_timer);
}
static void scic_sds_phy_starting_final_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
/* State machine has run to completion so exit out and change
* the base state machine to the ready state
*/
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_READY);
sci_change_state(&sci_phy->sm, SCI_PHY_READY);
}
/**
@ -1202,7 +1172,7 @@ static void scu_link_layer_tx_hard_reset(
static void scic_sds_phy_stopped_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
/*
* @todo We need to get to the controller to place this PE in a
@ -1212,7 +1182,7 @@ static void scic_sds_phy_stopped_state_enter(struct sci_base_state_machine *sm)
scu_link_layer_stop_protocol_engine(sci_phy);
if (sci_phy->state_machine.previous_state_id != SCI_BASE_PHY_STATE_INITIAL)
if (sci_phy->sm.previous_state_id != SCI_PHY_INITIAL)
scic_sds_controller_link_down(scic_sds_phy_get_controller(sci_phy),
phy_get_non_dummy_port(sci_phy),
sci_phy);
@ -1220,7 +1190,7 @@ static void scic_sds_phy_stopped_state_enter(struct sci_base_state_machine *sm)
static void scic_sds_phy_starting_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
scu_link_layer_stop_protocol_engine(sci_phy);
scu_link_layer_start_oob(sci_phy);
@ -1229,18 +1199,17 @@ static void scic_sds_phy_starting_state_enter(struct sci_base_state_machine *sm)
sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN;
sci_phy->bcn_received_while_port_unassigned = false;
if (sci_phy->state_machine.previous_state_id == SCI_BASE_PHY_STATE_READY)
if (sci_phy->sm.previous_state_id == SCI_PHY_READY)
scic_sds_controller_link_down(scic_sds_phy_get_controller(sci_phy),
phy_get_non_dummy_port(sci_phy),
sci_phy);
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL);
sci_change_state(&sci_phy->sm, SCI_PHY_SUB_INITIAL);
}
static void scic_sds_phy_ready_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
scic_sds_controller_link_up(scic_sds_phy_get_controller(sci_phy),
phy_get_non_dummy_port(sci_phy),
@ -1250,14 +1219,14 @@ static void scic_sds_phy_ready_state_enter(struct sci_base_state_machine *sm)
static void scic_sds_phy_ready_state_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
scic_sds_phy_suspend(sci_phy);
}
static void scic_sds_phy_resetting_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine);
struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm);
/* The phy is being reset, therefore deactivate it from the port. In
* the resetting state we don't notify the user regarding link up and
@ -1271,66 +1240,65 @@ static void scic_sds_phy_resetting_state_enter(struct sci_base_state_machine *sm
/* The SCU does not need to have a discrete reset state so
* just go back to the starting state.
*/
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_change_state(&sci_phy->sm, SCI_PHY_STARTING);
}
}
static const struct sci_base_state scic_sds_phy_state_table[] = {
[SCI_BASE_PHY_STATE_INITIAL] = { },
[SCI_BASE_PHY_STATE_STOPPED] = {
[SCI_PHY_INITIAL] = { },
[SCI_PHY_STOPPED] = {
.enter_state = scic_sds_phy_stopped_state_enter,
},
[SCI_BASE_PHY_STATE_STARTING] = {
[SCI_PHY_STARTING] = {
.enter_state = scic_sds_phy_starting_state_enter,
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = {
[SCI_PHY_SUB_INITIAL] = {
.enter_state = scic_sds_phy_starting_initial_substate_enter,
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = { },
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = { },
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = { },
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = {
[SCI_PHY_SUB_AWAIT_OSSP_EN] = { },
[SCI_PHY_SUB_AWAIT_SAS_SPEED_EN] = { },
[SCI_PHY_SUB_AWAIT_IAF_UF] = { },
[SCI_PHY_SUB_AWAIT_SAS_POWER] = {
.enter_state = scic_sds_phy_starting_await_sas_power_substate_enter,
.exit_state = scic_sds_phy_starting_await_sas_power_substate_exit,
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER] = {
[SCI_PHY_SUB_AWAIT_SATA_POWER] = {
.enter_state = scic_sds_phy_starting_await_sata_power_substate_enter,
.exit_state = scic_sds_phy_starting_await_sata_power_substate_exit
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN] = {
[SCI_PHY_SUB_AWAIT_SATA_PHY_EN] = {
.enter_state = scic_sds_phy_starting_await_sata_phy_substate_enter,
.exit_state = scic_sds_phy_starting_await_sata_phy_substate_exit
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN] = {
[SCI_PHY_SUB_AWAIT_SATA_SPEED_EN] = {
.enter_state = scic_sds_phy_starting_await_sata_speed_substate_enter,
.exit_state = scic_sds_phy_starting_await_sata_speed_substate_exit
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = {
[SCI_PHY_SUB_AWAIT_SIG_FIS_UF] = {
.enter_state = scic_sds_phy_starting_await_sig_fis_uf_substate_enter,
.exit_state = scic_sds_phy_starting_await_sig_fis_uf_substate_exit
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL] = {
[SCI_PHY_SUB_FINAL] = {
.enter_state = scic_sds_phy_starting_final_substate_enter,
},
[SCI_BASE_PHY_STATE_READY] = {
[SCI_PHY_READY] = {
.enter_state = scic_sds_phy_ready_state_enter,
.exit_state = scic_sds_phy_ready_state_exit,
},
[SCI_BASE_PHY_STATE_RESETTING] = {
[SCI_PHY_RESETTING] = {
.enter_state = scic_sds_phy_resetting_state_enter,
},
[SCI_BASE_PHY_STATE_FINAL] = { },
[SCI_PHY_FINAL] = { },
};
void scic_sds_phy_construct(struct scic_sds_phy *sci_phy,
struct scic_sds_port *owning_port, u8 phy_index)
{
sci_base_state_machine_construct(&sci_phy->state_machine,
sci_base_state_machine_construct(&sci_phy->sm,
scic_sds_phy_state_table,
SCI_BASE_PHY_STATE_INITIAL);
SCI_PHY_INITIAL);
sci_base_state_machine_start(&sci_phy->state_machine);
sci_base_state_machine_start(&sci_phy->sm);
/* Copy the rest of the input data to our locals */
sci_phy->owning_port = owning_port;

34
drivers/scsi/isci/phy.h
View file

@ -94,7 +94,7 @@ struct scic_sds_phy {
/**
* This field contains the information for the base phy state machine.
*/
struct sci_base_state_machine state_machine;
struct sci_base_state_machine sm;
/**
* This field specifies the port object that owns/contains this phy.
@ -410,7 +410,7 @@ enum scic_sds_phy_states {
/**
* Simply the initial state for the base domain state machine.
*/
SCI_BASE_PHY_STATE_INITIAL,
SCI_PHY_INITIAL,
/**
* This state indicates that the phy has successfully been stopped.
@ -420,7 +420,7 @@ enum scic_sds_phy_states {
* This state is entered from the READY state.
* This state is entered from the RESETTING state.
*/
SCI_BASE_PHY_STATE_STOPPED,
SCI_PHY_STOPPED,
/**
* This state indicates that the phy is in the process of becomming
@ -429,57 +429,57 @@ enum scic_sds_phy_states {
* This state is entered from the READY state.
* This state is entered from the RESETTING state.
*/
SCI_BASE_PHY_STATE_STARTING,
SCI_PHY_STARTING,
/**
* Initial state
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL,
SCI_PHY_SUB_INITIAL,
/**
* Wait state for the hardware OSSP event type notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN,
SCI_PHY_SUB_AWAIT_OSSP_EN,
/**
* Wait state for the PHY speed notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN,
SCI_PHY_SUB_AWAIT_SAS_SPEED_EN,
/**
* Wait state for the IAF Unsolicited frame notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF,
SCI_PHY_SUB_AWAIT_IAF_UF,
/**
* Wait state for the request to consume power
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER,
SCI_PHY_SUB_AWAIT_SAS_POWER,
/**
* Wait state for request to consume power
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER,
SCI_PHY_SUB_AWAIT_SATA_POWER,
/**
* Wait state for the SATA PHY notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN,
SCI_PHY_SUB_AWAIT_SATA_PHY_EN,
/**
* Wait for the SATA PHY speed notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN,
SCI_PHY_SUB_AWAIT_SATA_SPEED_EN,
/**
* Wait state for the SIGNATURE FIS unsolicited frame notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF,
SCI_PHY_SUB_AWAIT_SIG_FIS_UF,
/**
* Exit state for this state machine
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL,
SCI_PHY_SUB_FINAL,
/**
* This state indicates the the phy is now ready. Thus, the user
@ -487,19 +487,19 @@ enum scic_sds_phy_states {
* is currently part of a valid port.
* This state is entered from the STARTING state.
*/
SCI_BASE_PHY_STATE_READY,
SCI_PHY_READY,
/**
* This state indicates that the phy is in the process of being reset.
* In this state no new IO operations are permitted on this phy.
* This state is entered from the READY state.
*/
SCI_BASE_PHY_STATE_RESETTING,
SCI_PHY_RESETTING,
/**
* Simply the final state for the base phy state machine.
*/
SCI_BASE_PHY_STATE_FINAL,
SCI_PHY_FINAL,
};
/**

186
drivers/scsi/isci/port.c
View file

@ -807,10 +807,10 @@ static void scic_sds_port_invalid_link_up(struct scic_sds_port *sci_port,
static bool is_port_ready_state(enum scic_sds_port_states state)
{
switch (state) {
case SCI_BASE_PORT_STATE_READY:
case SCIC_SDS_PORT_READY_SUBSTATE_WAITING:
case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING:
case SCI_PORT_READY:
case SCI_PORT_SUB_WAITING:
case SCI_PORT_SUB_OPERATIONAL:
case SCI_PORT_SUB_CONFIGURING:
return true;
default:
return false;
@ -821,13 +821,13 @@ static bool is_port_ready_state(enum scic_sds_port_states state)
static void port_state_machine_change(struct scic_sds_port *sci_port,
enum scic_sds_port_states state)
{
struct sci_base_state_machine *sm = &sci_port->state_machine;
struct sci_base_state_machine *sm = &sci_port->sm;
enum scic_sds_port_states old_state = sm->current_state_id;
if (is_port_ready_state(old_state) && !is_port_ready_state(state))
sci_port->ready_exit = true;
sci_base_state_machine_change_state(sm, state);
sci_change_state(sm, state);
sci_port->ready_exit = false;
}
@ -862,11 +862,11 @@ static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_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->state_machine;
struct sci_base_state_machine *sm = &sci_port->sm;
scic_sds_port_activate_phy(sci_port, sci_phy, do_notify_user);
if (sm->current_state_id == SCI_BASE_PORT_STATE_RESETTING)
port_state_machine_change(sci_port, SCI_BASE_PORT_STATE_READY);
if (sm->current_state_id == SCI_PORT_RESETTING)
port_state_machine_change(sci_port, SCI_PORT_READY);
} else
scic_sds_port_invalid_link_up(sci_port, sci_phy);
}
@ -938,14 +938,14 @@ static void port_timeout(unsigned long data)
if (tmr->cancel)
goto done;
current_state = sci_base_state_machine_get_state(&sci_port->state_machine);
current_state = sci_port->sm.current_state_id;
if (current_state == SCI_BASE_PORT_STATE_RESETTING) {
if (current_state == SCI_PORT_RESETTING) {
/* if the port is still in the resetting state then the timeout
* fired before the reset completed.
*/
port_state_machine_change(sci_port, SCI_BASE_PORT_STATE_FAILED);
} else if (current_state == SCI_BASE_PORT_STATE_STOPPED) {
port_state_machine_change(sci_port, SCI_PORT_FAILED);
} else if (current_state == SCI_PORT_STOPPED) {
/* if the port is stopped then the start request failed In this
* case stay in the stopped state.
*/
@ -953,7 +953,7 @@ static void port_timeout(unsigned long data)
"%s: SCIC Port 0x%p failed to stop before tiemout.\n",
__func__,
sci_port);
} else if (current_state == SCI_BASE_PORT_STATE_STOPPING) {
} else if (current_state == SCI_PORT_STOPPING) {
/* if the port is still stopping then the stop has not completed */
isci_port_stop_complete(sci_port->owning_controller,
sci_port,
@ -1139,7 +1139,7 @@ scic_sds_port_resume_port_task_scheduler(struct scic_sds_port *port)
static void scic_sds_port_ready_substate_waiting_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
scic_sds_port_suspend_port_task_scheduler(sci_port);
@ -1148,14 +1148,14 @@ static void scic_sds_port_ready_substate_waiting_enter(struct sci_base_state_mac
if (sci_port->active_phy_mask != 0) {
/* At least one of the phys on the port is ready */
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL);
SCI_PORT_SUB_OPERATIONAL);
}
}
static void scic_sds_port_ready_substate_operational_enter(struct sci_base_state_machine *sm)
{
u32 index;
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
struct scic_sds_controller *scic = sci_port->owning_controller;
struct isci_host *ihost = scic_to_ihost(scic);
struct isci_port *iport = sci_port_to_iport(sci_port);
@ -1211,12 +1211,12 @@ static void scic_sds_port_invalidate_dummy_remote_node(struct scic_sds_port *sci
* @object: This is the object which is cast to a struct scic_sds_port object.
*
* This method will perform the actions required by the struct scic_sds_port on
* exiting the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function reports
* exiting the SCI_PORT_SUB_OPERATIONAL. This function reports
* the port not ready and suspends the port task scheduler. none
*/
static void scic_sds_port_ready_substate_operational_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
struct scic_sds_controller *scic = sci_port->owning_controller;
struct isci_host *ihost = scic_to_ihost(scic);
struct isci_port *iport = sci_port_to_iport(sci_port);
@ -1236,7 +1236,7 @@ static void scic_sds_port_ready_substate_operational_exit(struct sci_base_state_
static void scic_sds_port_ready_substate_configuring_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
struct scic_sds_controller *scic = sci_port->owning_controller;
struct isci_host *ihost = scic_to_ihost(scic);
struct isci_port *iport = sci_port_to_iport(sci_port);
@ -1245,15 +1245,15 @@ static void scic_sds_port_ready_substate_configuring_enter(struct sci_base_state
isci_port_not_ready(ihost, iport);
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_WAITING);
SCI_PORT_SUB_WAITING);
} else if (sci_port->started_request_count == 0)
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL);
SCI_PORT_SUB_OPERATIONAL);
}
static void scic_sds_port_ready_substate_configuring_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
scic_sds_port_suspend_port_task_scheduler(sci_port);
if (sci_port->ready_exit)
@ -1267,8 +1267,8 @@ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port)
enum scic_sds_port_states state;
u32 phy_mask;
state = sci_port->state_machine.current_state_id;
if (state != SCI_BASE_PORT_STATE_STOPPED) {
state = sci_port->sm.current_state_id;
if (state != SCI_PORT_STOPPED) {
dev_warn(sciport_to_dev(sci_port),
"%s: in wrong state: %d\n", __func__, state);
return SCI_FAILURE_INVALID_STATE;
@ -1315,7 +1315,7 @@ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port)
*/
if (scic_sds_port_is_phy_mask_valid(sci_port, phy_mask) == true) {
port_state_machine_change(sci_port,
SCI_BASE_PORT_STATE_READY);
SCI_PORT_READY);
return SCI_SUCCESS;
}
@ -1332,16 +1332,16 @@ enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port)
{
enum scic_sds_port_states state;
state = sci_port->state_machine.current_state_id;
state = sci_port->sm.current_state_id;
switch (state) {
case SCI_BASE_PORT_STATE_STOPPED:
case SCI_PORT_STOPPED:
return SCI_SUCCESS;
case SCIC_SDS_PORT_READY_SUBSTATE_WAITING:
case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING:
case SCI_BASE_PORT_STATE_RESETTING:
case SCI_PORT_SUB_WAITING:
case SCI_PORT_SUB_OPERATIONAL:
case SCI_PORT_SUB_CONFIGURING:
case SCI_PORT_RESETTING:
port_state_machine_change(sci_port,
SCI_BASE_PORT_STATE_STOPPING);
SCI_PORT_STOPPING);
return SCI_SUCCESS;
default:
dev_warn(sciport_to_dev(sci_port),
@ -1357,8 +1357,8 @@ static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32
enum scic_sds_port_states state;
u32 phy_index;
state = sci_port->state_machine.current_state_id;
if (state != SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL) {
state = sci_port->sm.current_state_id;
if (state != SCI_PORT_SUB_OPERATIONAL) {
dev_warn(sciport_to_dev(sci_port),
"%s: in wrong state: %d\n", __func__, state);
return SCI_FAILURE_INVALID_STATE;
@ -1389,7 +1389,7 @@ static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32
sci_port->not_ready_reason = SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED;
port_state_machine_change(sci_port,
SCI_BASE_PORT_STATE_RESETTING);
SCI_PORT_RESETTING);
return SCI_SUCCESS;
}
@ -1408,9 +1408,9 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port,
enum sci_status status;
enum scic_sds_port_states state;
state = sci_port->state_machine.current_state_id;
state = sci_port->sm.current_state_id;
switch (state) {
case SCI_BASE_PORT_STATE_STOPPED: {
case SCI_PORT_STOPPED: {
struct sci_sas_address port_sas_address;
/* Read the port assigned SAS Address if there is one */
@ -1430,8 +1430,8 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port,
}
return scic_sds_port_set_phy(sci_port, sci_phy);
}
case SCIC_SDS_PORT_READY_SUBSTATE_WAITING:
case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
case SCI_PORT_SUB_WAITING:
case SCI_PORT_SUB_OPERATIONAL:
status = scic_sds_port_set_phy(sci_port, sci_phy);
if (status != SCI_SUCCESS)
@ -1439,10 +1439,10 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port,
scic_sds_port_general_link_up_handler(sci_port, sci_phy, true);
sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING;
port_state_machine_change(sci_port, SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING);
port_state_machine_change(sci_port, SCI_PORT_SUB_CONFIGURING);
return status;
case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING:
case SCI_PORT_SUB_CONFIGURING:
status = scic_sds_port_set_phy(sci_port, sci_phy);
if (status != SCI_SUCCESS)
@ -1453,7 +1453,7 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port,
* the port.
*/
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING);
SCI_PORT_SUB_CONFIGURING);
return SCI_SUCCESS;
default:
dev_warn(sciport_to_dev(sci_port),
@ -1477,12 +1477,12 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port,
enum sci_status status;
enum scic_sds_port_states state;
state = sci_port->state_machine.current_state_id;
state = sci_port->sm.current_state_id;
switch (state) {
case SCI_BASE_PORT_STATE_STOPPED:
case SCI_PORT_STOPPED:
return scic_sds_port_clear_phy(sci_port, sci_phy);
case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
case SCI_PORT_SUB_OPERATIONAL:
status = scic_sds_port_clear_phy(sci_port, sci_phy);
if (status != SCI_SUCCESS)
return status;
@ -1490,9 +1490,9 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port,
scic_sds_port_deactivate_phy(sci_port, sci_phy, true);
sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING;
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING);
SCI_PORT_SUB_CONFIGURING);
return SCI_SUCCESS;
case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING:
case SCI_PORT_SUB_CONFIGURING:
status = scic_sds_port_clear_phy(sci_port, sci_phy);
if (status != SCI_SUCCESS)
@ -1503,7 +1503,7 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port,
* the port
*/
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING);
SCI_PORT_SUB_CONFIGURING);
return SCI_SUCCESS;
default:
dev_warn(sciport_to_dev(sci_port),
@ -1517,21 +1517,21 @@ enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port,
{
enum scic_sds_port_states state;
state = sci_port->state_machine.current_state_id;
state = sci_port->sm.current_state_id;
switch (state) {
case SCIC_SDS_PORT_READY_SUBSTATE_WAITING:
case SCI_PORT_SUB_WAITING:
/* Since this is the first phy going link up for the port we
* can just enable it and continue
*/
scic_sds_port_activate_phy(sci_port, sci_phy, true);
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL);
SCI_PORT_SUB_OPERATIONAL);
return SCI_SUCCESS;
case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
case SCI_PORT_SUB_OPERATIONAL:
scic_sds_port_general_link_up_handler(sci_port, sci_phy, true);
return SCI_SUCCESS;
case SCI_BASE_PORT_STATE_RESETTING:
case SCI_PORT_RESETTING:
/* TODO We should make sure that the phy that has gone
* link up is the same one on which we sent the reset. It is
* possible that the phy on which we sent the reset is not the
@ -1560,9 +1560,9 @@ enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port,
{
enum scic_sds_port_states state;
state = sci_port->state_machine.current_state_id;
state = sci_port->sm.current_state_id;
switch (state) {
case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
case SCI_PORT_SUB_OPERATIONAL:
scic_sds_port_deactivate_phy(sci_port, sci_phy, true);
/* If there are no active phys left in the port, then
@ -1571,9 +1571,9 @@ enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port,
*/
if (sci_port->active_phy_mask == 0)
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_WAITING);
SCI_PORT_SUB_WAITING);
return SCI_SUCCESS;
case SCI_BASE_PORT_STATE_RESETTING:
case SCI_PORT_RESETTING:
/* In the resetting state we don't notify the user regarding
* link up and link down notifications. */
scic_sds_port_deactivate_phy(sci_port, sci_phy, false);
@ -1591,11 +1591,11 @@ enum sci_status scic_sds_port_start_io(struct scic_sds_port *sci_port,
{
enum scic_sds_port_states state;
state = sci_port->state_machine.current_state_id;
state = sci_port->sm.current_state_id;
switch (state) {
case SCIC_SDS_PORT_READY_SUBSTATE_WAITING:
case SCI_PORT_SUB_WAITING:
return SCI_FAILURE_INVALID_STATE;
case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
case SCI_PORT_SUB_OPERATIONAL:
sci_port->started_request_count++;
return SCI_SUCCESS;
default:
@ -1611,31 +1611,31 @@ enum sci_status scic_sds_port_complete_io(struct scic_sds_port *sci_port,
{
enum scic_sds_port_states state;
state = sci_port->state_machine.current_state_id;
state = sci_port->sm.current_state_id;
switch (state) {
case SCI_BASE_PORT_STATE_STOPPED:
case SCI_PORT_STOPPED:
dev_warn(sciport_to_dev(sci_port),
"%s: in wrong state: %d\n", __func__, state);
return SCI_FAILURE_INVALID_STATE;
case SCI_BASE_PORT_STATE_STOPPING:
case SCI_PORT_STOPPING:
scic_sds_port_decrement_request_count(sci_port);
if (sci_port->started_request_count == 0)
port_state_machine_change(sci_port,
SCI_BASE_PORT_STATE_STOPPED);
SCI_PORT_STOPPED);
break;
case SCI_BASE_PORT_STATE_READY:
case SCI_BASE_PORT_STATE_RESETTING:
case SCI_BASE_PORT_STATE_FAILED:
case SCIC_SDS_PORT_READY_SUBSTATE_WAITING:
case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
case SCI_PORT_READY:
case SCI_PORT_RESETTING:
case SCI_PORT_FAILED:
case SCI_PORT_SUB_WAITING:
case SCI_PORT_SUB_OPERATIONAL:
scic_sds_port_decrement_request_count(sci_port);
break;
case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING:
case SCI_PORT_SUB_CONFIGURING:
scic_sds_port_decrement_request_count(sci_port);
if (sci_port->started_request_count == 0) {
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL);
SCI_PORT_SUB_OPERATIONAL);
}
break;
}
@ -1707,9 +1707,9 @@ static void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port)
static void scic_sds_port_stopped_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
if (sci_port->state_machine.previous_state_id == SCI_BASE_PORT_STATE_STOPPING) {
if (sci_port->sm.previous_state_id == SCI_PORT_STOPPING) {
/*
* If we enter this state becasuse of a request to stop
* the port then we want to disable the hardwares port
@ -1720,7 +1720,7 @@ static void scic_sds_port_stopped_state_enter(struct sci_base_state_machine *sm)
static void scic_sds_port_stopped_state_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
/* Enable and suspend the port task scheduler */
scic_sds_port_enable_port_task_scheduler(sci_port);
@ -1728,14 +1728,14 @@ static void scic_sds_port_stopped_state_exit(struct sci_base_state_machine *sm)
static void scic_sds_port_ready_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
struct scic_sds_controller *scic = sci_port->owning_controller;
struct isci_host *ihost = scic_to_ihost(scic);
struct isci_port *iport = sci_port_to_iport(sci_port);
u32 prev_state;
prev_state = sci_port->state_machine.previous_state_id;
if (prev_state == SCI_BASE_PORT_STATE_RESETTING)
prev_state = sci_port->sm.previous_state_id;
if (prev_state == SCI_PORT_RESETTING)
isci_port_hard_reset_complete(iport, SCI_SUCCESS);
else
isci_port_not_ready(ihost, iport);
@ -1745,19 +1745,19 @@ static void scic_sds_port_ready_state_enter(struct sci_base_state_machine *sm)
/* Start the ready substate machine */
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_WAITING);
SCI_PORT_SUB_WAITING);
}
static void scic_sds_port_resetting_state_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
sci_del_timer(&sci_port->timer);
}
static void scic_sds_port_stopping_state_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
sci_del_timer(&sci_port->timer);
@ -1766,7 +1766,7 @@ static void scic_sds_port_stopping_state_exit(struct sci_base_state_machine *sm)
static void scic_sds_port_failed_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine);
struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm);
struct isci_port *iport = sci_port_to_iport(sci_port);
isci_port_hard_reset_complete(iport, SCI_FAILURE_TIMEOUT);
@ -1775,31 +1775,31 @@ static void scic_sds_port_failed_state_enter(struct sci_base_state_machine *sm)
/* --------------------------------------------------------------------------- */
static const struct sci_base_state scic_sds_port_state_table[] = {
[SCI_BASE_PORT_STATE_STOPPED] = {
[SCI_PORT_STOPPED] = {
.enter_state = scic_sds_port_stopped_state_enter,
.exit_state = scic_sds_port_stopped_state_exit
},
[SCI_BASE_PORT_STATE_STOPPING] = {
[SCI_PORT_STOPPING] = {
.exit_state = scic_sds_port_stopping_state_exit
},
[SCI_BASE_PORT_STATE_READY] = {
[SCI_PORT_READY] = {
.enter_state = scic_sds_port_ready_state_enter,
},
[SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = {
[SCI_PORT_SUB_WAITING] = {
.enter_state = scic_sds_port_ready_substate_waiting_enter,
},
[SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = {
[SCI_PORT_SUB_OPERATIONAL] = {
.enter_state = scic_sds_port_ready_substate_operational_enter,
.exit_state = scic_sds_port_ready_substate_operational_exit
},
[SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = {
[SCI_PORT_SUB_CONFIGURING] = {
.enter_state = scic_sds_port_ready_substate_configuring_enter,
.exit_state = scic_sds_port_ready_substate_configuring_exit
},
[SCI_BASE_PORT_STATE_RESETTING] = {
[SCI_PORT_RESETTING] = {
.exit_state = scic_sds_port_resetting_state_exit
},
[SCI_BASE_PORT_STATE_FAILED] = {
[SCI_PORT_FAILED] = {
.enter_state = scic_sds_port_failed_state_enter,
}
};
@ -1807,11 +1807,11 @@ static const struct sci_base_state scic_sds_port_state_table[] = {
void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 index,
struct scic_sds_controller *scic)
{
sci_base_state_machine_construct(&sci_port->state_machine,
sci_base_state_machine_construct(&sci_port->sm,
scic_sds_port_state_table,
SCI_BASE_PORT_STATE_STOPPED);
SCI_PORT_STOPPED);
sci_base_state_machine_start(&sci_port->state_machine);
sci_base_state_machine_start(&sci_port->sm);
sci_port->logical_port_index = SCIC_SDS_DUMMY_PORT;
sci_port->physical_port_index = index;

18
drivers/scsi/isci/port.h
View file

@ -84,7 +84,7 @@ struct scic_sds_port {
/**
* This field contains the information for the base port state machine.
*/
struct sci_base_state_machine state_machine;
struct sci_base_state_machine sm;
bool ready_exit;
@ -224,7 +224,7 @@ enum scic_sds_port_states {
* In this state no new IO operations are permitted.
* This state is entered from the STOPPING state.
*/
SCI_BASE_PORT_STATE_STOPPED,
SCI_PORT_STOPPED,
/**
* This state indicates that the port is in the process of stopping.
@ -232,33 +232,33 @@ enum scic_sds_port_states {
* operations are allowed to complete.
* This state is entered from the READY state.
*/
SCI_BASE_PORT_STATE_STOPPING,
SCI_PORT_STOPPING,
/**
* This state indicates the port is now ready. Thus, the user is
* able to perform IO operations on this port.
* This state is entered from the STARTING state.
*/
SCI_BASE_PORT_STATE_READY,
SCI_PORT_READY,
/**
* The substate where the port is started and ready but has no
* active phys.
*/
SCIC_SDS_PORT_READY_SUBSTATE_WAITING,
SCI_PORT_SUB_WAITING,
/**
* The substate where the port is started and ready and there is
* at least one phy operational.
*/
SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL,
SCI_PORT_SUB_OPERATIONAL,
/**
* The substate where the port is started and there was an
* add/remove phy event. This state is only used in Automatic
* Port Configuration Mode (APC)
*/
SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING,
SCI_PORT_SUB_CONFIGURING,
/**
* This state indicates the port is in the process of performing a hard
@ -266,14 +266,14 @@ enum scic_sds_port_states {
* port.
* This state is entered from the READY state.
*/
SCI_BASE_PORT_STATE_RESETTING,
SCI_PORT_RESETTING,
/**
* This state indicates the port has failed a reset request. This state
* is entered when a port reset request times out.
* This state is entered from the RESETTING state.
*/
SCI_BASE_PORT_STATE_FAILED,
SCI_PORT_FAILED,
};

4
drivers/scsi/isci/port_config.c
View file

@ -661,13 +661,13 @@ static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic,
scic_sds_apc_agent_configure_ports(scic, port_agent, sci_phy, true);
} else {
/* the phy is already the part of the port */
u32 port_state = sci_port->state_machine.current_state_id;
u32 port_state = sci_port->sm.current_state_id;
/* if the PORT'S state is resetting then the link up is from
* port hard reset in this case, we need to tell the port
* that link up is recieved
*/
BUG_ON(port_state != SCI_BASE_PORT_STATE_RESETTING);
BUG_ON(port_state != SCI_PORT_RESETTING);
port_agent->phy_ready_mask |= 1 << phy_index;
scic_sds_port_link_up(sci_port, sci_phy);
}

349
drivers/scsi/isci/remote_device.c
View file

@ -126,8 +126,7 @@ static void rnc_destruct_done(void *_dev)
struct scic_sds_remote_device *sci_dev = _dev;
BUG_ON(sci_dev->started_request_count != 0);
sci_base_state_machine_change_state(&sci_dev->state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED);
sci_change_state(&sci_dev->sm, SCI_DEV_STOPPED);
}
static enum sci_status scic_sds_remote_device_terminate_requests(struct scic_sds_remote_device *sci_dev)
@ -154,20 +153,20 @@ static enum sci_status scic_sds_remote_device_terminate_requests(struct scic_sds
enum sci_status scic_remote_device_stop(struct scic_sds_remote_device *sci_dev,
u32 timeout)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
switch (state) {
case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL:
case SCI_BASE_REMOTE_DEVICE_STATE_FAILED:
case SCI_BASE_REMOTE_DEVICE_STATE_FINAL:
case SCI_DEV_INITIAL:
case SCI_DEV_FAILED:
case SCI_DEV_FINAL:
default:
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED:
case SCI_DEV_STOPPED:
return SCI_SUCCESS;
case SCI_BASE_REMOTE_DEVICE_STATE_STARTING:
case SCI_DEV_STARTING:
/* device not started so there had better be no requests */
BUG_ON(sci_dev->started_request_count != 0);
scic_sds_remote_node_context_destruct(&sci_dev->rnc,
@ -175,17 +174,17 @@ enum sci_status scic_remote_device_stop(struct scic_sds_remote_device *sci_dev,
/* Transition to the stopping state and wait for the
* remote node to complete being posted and invalidated.
*/
sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_STOPPING);
sci_change_state(sm, SCI_DEV_STOPPING);
return SCI_SUCCESS;
case SCI_BASE_REMOTE_DEVICE_STATE_READY:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_STOPPING);
case SCI_DEV_READY:
case SCI_STP_DEV_IDLE:
case SCI_STP_DEV_CMD:
case SCI_STP_DEV_NCQ:
case SCI_STP_DEV_NCQ_ERROR:
case SCI_STP_DEV_AWAIT_RESET:
case SCI_SMP_DEV_IDLE:
case SCI_SMP_DEV_CMD:
sci_change_state(sm, SCI_DEV_STOPPING);
if (sci_dev->started_request_count == 0) {
scic_sds_remote_node_context_destruct(&sci_dev->rnc,
rnc_destruct_done, sci_dev);
@ -193,70 +192,70 @@ enum sci_status scic_remote_device_stop(struct scic_sds_remote_device *sci_dev,
} else
return scic_sds_remote_device_terminate_requests(sci_dev);
break;
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING:
case SCI_DEV_STOPPING:
/* All requests should have been terminated, but if there is an
* attempt to stop a device already in the stopping state, then
* try again to terminate.
*/
return scic_sds_remote_device_terminate_requests(sci_dev);
case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING:
sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_STOPPING);
case SCI_DEV_RESETTING:
sci_change_state(sm, SCI_DEV_STOPPING);
return SCI_SUCCESS;
}
}
enum sci_status scic_remote_device_reset(struct scic_sds_remote_device *sci_dev)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
switch (state) {
case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL:
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED:
case SCI_BASE_REMOTE_DEVICE_STATE_STARTING:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING:
case SCI_BASE_REMOTE_DEVICE_STATE_FAILED:
case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING:
case SCI_BASE_REMOTE_DEVICE_STATE_FINAL:
case SCI_DEV_INITIAL:
case SCI_DEV_STOPPED:
case SCI_DEV_STARTING:
case SCI_SMP_DEV_IDLE:
case SCI_SMP_DEV_CMD:
case SCI_DEV_STOPPING:
case SCI_DEV_FAILED:
case SCI_DEV_RESETTING:
case SCI_DEV_FINAL:
default:
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
case SCI_BASE_REMOTE_DEVICE_STATE_READY:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET:
sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_RESETTING);
case SCI_DEV_READY:
case SCI_STP_DEV_IDLE:
case SCI_STP_DEV_CMD:
case SCI_STP_DEV_NCQ:
case SCI_STP_DEV_NCQ_ERROR:
case SCI_STP_DEV_AWAIT_RESET:
sci_change_state(sm, SCI_DEV_RESETTING);
return SCI_SUCCESS;
}
}
enum sci_status scic_remote_device_reset_complete(struct scic_sds_remote_device *sci_dev)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
if (state != SCI_BASE_REMOTE_DEVICE_STATE_RESETTING) {
if (state != SCI_DEV_RESETTING) {
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
}
sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_READY);
sci_change_state(sm, SCI_DEV_READY);
return SCI_SUCCESS;
}
enum sci_status scic_sds_remote_device_suspend(struct scic_sds_remote_device *sci_dev,
u32 suspend_type)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
if (state != SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD) {
if (state != SCI_STP_DEV_CMD) {
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
@ -269,30 +268,30 @@ enum sci_status scic_sds_remote_device_suspend(struct scic_sds_remote_device *sc
enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_device *sci_dev,
u32 frame_index)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller;
enum sci_status status;
switch (state) {
case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL:
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED:
case SCI_BASE_REMOTE_DEVICE_STATE_STARTING:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCI_BASE_REMOTE_DEVICE_STATE_FINAL:
case SCI_DEV_INITIAL:
case SCI_DEV_STOPPED:
case SCI_DEV_STARTING:
case SCI_STP_DEV_IDLE:
case SCI_SMP_DEV_IDLE:
case SCI_DEV_FINAL:
default:
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
/* Return the frame back to the controller */
scic_sds_controller_release_frame(scic, frame_index);
return SCI_FAILURE_INVALID_STATE;
case SCI_BASE_REMOTE_DEVICE_STATE_READY:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET:
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING:
case SCI_BASE_REMOTE_DEVICE_STATE_FAILED:
case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING: {
case SCI_DEV_READY:
case SCI_STP_DEV_NCQ_ERROR:
case SCI_STP_DEV_AWAIT_RESET:
case SCI_DEV_STOPPING:
case SCI_DEV_FAILED:
case SCI_DEV_RESETTING: {
struct scic_sds_request *sci_req;
struct ssp_frame_hdr hdr;
void *frame_header;
@ -319,7 +318,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi
}
break;
}
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ: {
case SCI_STP_DEV_NCQ: {
struct dev_to_host_fis *hdr;
status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control,
@ -333,7 +332,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi
sci_dev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED;
/* TODO Check sactive and complete associated IO if any. */
sci_base_state_machine_change_state(sm, SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR);
sci_change_state(sm, SCI_STP_DEV_NCQ_ERROR);
} else if (hdr->fis_type == FIS_REGD2H &&
(hdr->status & ATA_ERR)) {
/*
@ -341,16 +340,15 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi
* Treat this like an SDB error FIS ready reason.
*/
sci_dev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED;
sci_base_state_machine_change_state(&sci_dev->state_machine,
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR);
sci_change_state(&sci_dev->sm, SCI_STP_DEV_NCQ_ERROR);
} else
status = SCI_FAILURE;
scic_sds_controller_release_frame(scic, frame_index);
break;
}
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCI_STP_DEV_CMD:
case SCI_SMP_DEV_CMD:
/* The device does not process any UF received from the hardware while
* in this state. All unsolicited frames are forwarded to the io request
* object.
@ -365,18 +363,18 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi
static bool is_remote_device_ready(struct scic_sds_remote_device *sci_dev)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
switch (state) {
case SCI_BASE_REMOTE_DEVICE_STATE_READY:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCI_DEV_READY:
case SCI_STP_DEV_IDLE:
case SCI_STP_DEV_CMD:
case SCI_STP_DEV_NCQ:
case SCI_STP_DEV_NCQ_ERROR:
case SCI_STP_DEV_AWAIT_RESET:
case SCI_SMP_DEV_IDLE:
case SCI_SMP_DEV_CMD:
return true;
default:
return false;
@ -386,7 +384,7 @@ static bool is_remote_device_ready(struct scic_sds_remote_device *sci_dev)
enum sci_status scic_sds_remote_device_event_handler(struct scic_sds_remote_device *sci_dev,
u32 event_code)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
enum sci_status status;
@ -429,7 +427,7 @@ enum sci_status scic_sds_remote_device_event_handler(struct scic_sds_remote_devi
if (status != SCI_SUCCESS)
return status;
if (state == SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE) {
if (state == SCI_STP_DEV_IDLE) {
/* We pick up suspension events to handle specifically to this
* state. We resume the RNC right away.
@ -459,26 +457,26 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *sci_req)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
struct scic_sds_port *sci_port = sci_dev->owning_port;
struct isci_request *ireq = sci_req_to_ireq(sci_req);
enum sci_status status;
switch (state) {
case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL:
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED:
case SCI_BASE_REMOTE_DEVICE_STATE_STARTING:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR:
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING:
case SCI_BASE_REMOTE_DEVICE_STATE_FAILED:
case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING:
case SCI_BASE_REMOTE_DEVICE_STATE_FINAL:
case SCI_DEV_INITIAL:
case SCI_DEV_STOPPED:
case SCI_DEV_STARTING:
case SCI_STP_DEV_NCQ_ERROR:
case SCI_DEV_STOPPING:
case SCI_DEV_FAILED:
case SCI_DEV_RESETTING:
case SCI_DEV_FINAL:
default:
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
case SCI_BASE_REMOTE_DEVICE_STATE_READY:
case SCI_DEV_READY:
/* attempt to start an io request for this device object. The remote
* device object will issue the start request for the io and if
* successful it will start the request for the port object then
@ -494,7 +492,7 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic
status = scic_sds_request_start(sci_req);
break;
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: {
case SCI_STP_DEV_IDLE: {
/* handle the start io operation for a sata device that is in
* the command idle state. - Evalute the type of IO request to
* be started - If its an NCQ request change to NCQ substate -
@ -519,15 +517,15 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic
break;
if (task->ata_task.use_ncq)
new_state = SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ;
new_state = SCI_STP_DEV_NCQ;
else {
sci_dev->working_request = sci_req;
new_state = SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD;
new_state = SCI_STP_DEV_CMD;
}
sci_base_state_machine_change_state(sm, new_state);
sci_change_state(sm, new_state);
break;
}
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ: {
case SCI_STP_DEV_NCQ: {
struct sas_task *task = isci_request_access_task(ireq);
if (task->ata_task.use_ncq) {
@ -544,9 +542,9 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic
return SCI_FAILURE_INVALID_STATE;
break;
}
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET:
case SCI_STP_DEV_AWAIT_RESET:
return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED;
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCI_SMP_DEV_IDLE:
status = scic_sds_port_start_io(sci_port, sci_dev, sci_req);
if (status != SCI_SUCCESS)
return status;
@ -560,11 +558,10 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic
break;
sci_dev->working_request = sci_req;
sci_base_state_machine_change_state(&sci_dev->state_machine,
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD);
sci_change_state(&sci_dev->sm, SCI_SMP_DEV_CMD);
break;
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCI_STP_DEV_CMD:
case SCI_SMP_DEV_CMD:
/* device is already handling a command it can not accept new commands
* until this one is complete.
*/
@ -597,31 +594,31 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *sci_req)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
struct scic_sds_port *sci_port = sci_dev->owning_port;
enum sci_status status;
switch (state) {
case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL:
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED:
case SCI_BASE_REMOTE_DEVICE_STATE_STARTING:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCI_BASE_REMOTE_DEVICE_STATE_FAILED:
case SCI_BASE_REMOTE_DEVICE_STATE_FINAL:
case SCI_DEV_INITIAL:
case SCI_DEV_STOPPED:
case SCI_DEV_STARTING:
case SCI_STP_DEV_IDLE:
case SCI_SMP_DEV_IDLE:
case SCI_DEV_FAILED:
case SCI_DEV_FINAL:
default:
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
case SCI_BASE_REMOTE_DEVICE_STATE_READY:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET:
case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING:
case SCI_DEV_READY:
case SCI_STP_DEV_AWAIT_RESET:
case SCI_DEV_RESETTING:
status = common_complete_io(sci_port, sci_dev, sci_req);
break;
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR:
case SCI_STP_DEV_CMD:
case SCI_STP_DEV_NCQ:
case SCI_STP_DEV_NCQ_ERROR:
status = common_complete_io(sci_port, sci_dev, sci_req);
if (status != SCI_SUCCESS)
break;
@ -632,17 +629,17 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s
* can reach RNC state handler, these IOs will be completed by RNC with
* status of "DEVICE_RESET_REQUIRED", instead of "INVALID STATE".
*/
sci_base_state_machine_change_state(sm, SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET);
sci_change_state(sm, SCI_STP_DEV_AWAIT_RESET);
} else if (scic_sds_remote_device_get_request_count(sci_dev) == 0)
sci_base_state_machine_change_state(sm, SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE);
sci_change_state(sm, SCI_STP_DEV_IDLE);
break;
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCI_SMP_DEV_CMD:
status = common_complete_io(sci_port, sci_dev, sci_req);
if (status != SCI_SUCCESS)
break;
sci_base_state_machine_change_state(sm, SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE);
sci_change_state(sm, SCI_SMP_DEV_IDLE);
break;
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING:
case SCI_DEV_STOPPING:
status = common_complete_io(sci_port, sci_dev, sci_req);
if (status != SCI_SUCCESS)
break;
@ -676,30 +673,30 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *sci_req)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
struct scic_sds_port *sci_port = sci_dev->owning_port;
enum sci_status status;
switch (state) {
case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL:
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED:
case SCI_BASE_REMOTE_DEVICE_STATE_STARTING:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING:
case SCI_BASE_REMOTE_DEVICE_STATE_FAILED:
case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING:
case SCI_BASE_REMOTE_DEVICE_STATE_FINAL:
case SCI_DEV_INITIAL:
case SCI_DEV_STOPPED:
case SCI_DEV_STARTING:
case SCI_SMP_DEV_IDLE:
case SCI_SMP_DEV_CMD:
case SCI_DEV_STOPPING:
case SCI_DEV_FAILED:
case SCI_DEV_RESETTING:
case SCI_DEV_FINAL:
default:
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR:
case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET:
case SCI_STP_DEV_IDLE:
case SCI_STP_DEV_CMD:
case SCI_STP_DEV_NCQ:
case SCI_STP_DEV_NCQ_ERROR:
case SCI_STP_DEV_AWAIT_RESET:
status = scic_sds_port_start_io(sci_port, sci_dev, sci_req);
if (status != SCI_SUCCESS)
return status;
@ -717,7 +714,7 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc
* management request.
*/
sci_dev->working_request = sci_req;
sci_base_state_machine_change_state(sm, SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD);
sci_change_state(sm, SCI_STP_DEV_CMD);
/* The remote node context must cleanup the TCi to NCQ mapping
* table. The only way to do this correctly is to either write
@ -739,7 +736,7 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc
* post TC when RNC gets resumed.
*/
return SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS;
case SCI_BASE_REMOTE_DEVICE_STATE_READY:
case SCI_DEV_READY:
status = scic_sds_port_start_io(sci_port, sci_dev, sci_req);
if (status != SCI_SUCCESS)
return status;
@ -790,8 +787,7 @@ static void remote_device_resume_done(void *_dev)
return;
/* go 'ready' if we are not already in a ready state */
sci_base_state_machine_change_state(&sci_dev->state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_READY);
sci_change_state(&sci_dev->sm, SCI_DEV_READY);
}
static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(void *_dev)
@ -803,17 +799,16 @@ static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handl
/* For NCQ operation we do not issue a isci_remote_device_not_ready().
* As a result, avoid sending the ready notification.
*/
if (sci_dev->state_machine.previous_state_id != SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ)
if (sci_dev->sm.previous_state_id != SCI_STP_DEV_NCQ)
isci_remote_device_ready(scic_to_ihost(scic), idev);
}
static void scic_sds_remote_device_initial_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
/* Initial state is a transitional state to the stopped state */
sci_base_state_machine_change_state(&sci_dev->state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED);
sci_change_state(&sci_dev->sm, SCI_DEV_STOPPED);
}
/**
@ -831,11 +826,11 @@ static void scic_sds_remote_device_initial_state_enter(struct sci_base_state_mac
*/
static enum sci_status scic_remote_device_destruct(struct scic_sds_remote_device *sci_dev)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
struct scic_sds_controller *scic;
if (state != SCI_BASE_REMOTE_DEVICE_STATE_STOPPED) {
if (state != SCI_DEV_STOPPED) {
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
@ -845,7 +840,7 @@ static enum sci_status scic_remote_device_destruct(struct scic_sds_remote_device
scic_sds_controller_free_remote_node_context(scic, sci_dev,
sci_dev->rnc.remote_node_index);
sci_dev->rnc.remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX;
sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_FINAL);
sci_change_state(sm, SCI_DEV_FINAL);
return SCI_SUCCESS;
}
@ -906,7 +901,7 @@ static void isci_remote_device_stop_complete(struct isci_host *ihost,
static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller;
struct isci_remote_device *idev = sci_dev_to_idev(sci_dev);
u32 prev_state;
@ -914,8 +909,8 @@ static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_mac
/* If we are entering from the stopping state let the SCI User know that
* the stop operation has completed.
*/
prev_state = sci_dev->state_machine.previous_state_id;
if (prev_state == SCI_BASE_REMOTE_DEVICE_STATE_STOPPING)
prev_state = sci_dev->sm.previous_state_id;
if (prev_state == SCI_DEV_STOPPING)
isci_remote_device_stop_complete(scic_to_ihost(scic), idev);
scic_sds_controller_remote_device_stopped(scic, sci_dev);
@ -923,7 +918,7 @@ static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_mac
static void scic_sds_remote_device_starting_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev);
struct isci_host *ihost = scic_to_ihost(scic);
struct isci_remote_device *idev = sci_dev_to_idev(sci_dev);
@ -934,7 +929,7 @@ static void scic_sds_remote_device_starting_state_enter(struct sci_base_state_ma
static void scic_sds_remote_device_ready_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller;
struct isci_remote_device *idev = sci_dev_to_idev(sci_dev);
struct domain_device *dev = idev->domain_dev;
@ -942,18 +937,16 @@ static void scic_sds_remote_device_ready_state_enter(struct sci_base_state_machi
scic->remote_device_sequence[sci_dev->rnc.remote_node_index]++;
if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_SATA)) {
sci_base_state_machine_change_state(&sci_dev->state_machine,
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE);
sci_change_state(&sci_dev->sm, SCI_STP_DEV_IDLE);
} else if (dev_is_expander(dev)) {
sci_base_state_machine_change_state(&sci_dev->state_machine,
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE);
sci_change_state(&sci_dev->sm, SCI_SMP_DEV_IDLE);
} else
isci_remote_device_ready(scic_to_ihost(scic), idev);
}
static void scic_sds_remote_device_ready_state_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
struct domain_device *dev = sci_dev_to_domain(sci_dev);
if (dev->dev_type == SAS_END_DEV) {
@ -967,7 +960,7 @@ static void scic_sds_remote_device_ready_state_exit(struct sci_base_state_machin
static void scic_sds_remote_device_resetting_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
scic_sds_remote_node_context_suspend(
&sci_dev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL);
@ -975,14 +968,14 @@ static void scic_sds_remote_device_resetting_state_enter(struct sci_base_state_m
static void scic_sds_remote_device_resetting_state_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
scic_sds_remote_node_context_resume(&sci_dev->rnc, NULL, NULL);
}
static void scic_sds_stp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
sci_dev->working_request = NULL;
if (scic_sds_remote_node_context_is_ready(&sci_dev->rnc)) {
@ -999,7 +992,7 @@ static void scic_sds_stp_remote_device_ready_idle_substate_enter(struct sci_base
static void scic_sds_stp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev);
BUG_ON(sci_dev->working_request == NULL);
@ -1010,7 +1003,7 @@ static void scic_sds_stp_remote_device_ready_cmd_substate_enter(struct sci_base_
static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev);
struct isci_remote_device *idev = sci_dev_to_idev(sci_dev);
@ -1021,7 +1014,7 @@ static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter(struct sci
static void scic_sds_smp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev);
isci_remote_device_ready(scic_to_ihost(scic), sci_dev_to_idev(sci_dev));
@ -1029,7 +1022,7 @@ static void scic_sds_smp_remote_device_ready_idle_substate_enter(struct sci_base
static void scic_sds_smp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev);
BUG_ON(sci_dev->working_request == NULL);
@ -1040,50 +1033,50 @@ static void scic_sds_smp_remote_device_ready_cmd_substate_enter(struct sci_base_
static void scic_sds_smp_remote_device_ready_cmd_substate_exit(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine);
struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm);
sci_dev->working_request = NULL;
}
static const struct sci_base_state scic_sds_remote_device_state_table[] = {
[SCI_BASE_REMOTE_DEVICE_STATE_INITIAL] = {
[SCI_DEV_INITIAL] = {
.enter_state = scic_sds_remote_device_initial_state_enter,
},
[SCI_BASE_REMOTE_DEVICE_STATE_STOPPED] = {
[SCI_DEV_STOPPED] = {
.enter_state = scic_sds_remote_device_stopped_state_enter,
},
[SCI_BASE_REMOTE_DEVICE_STATE_STARTING] = {
[SCI_DEV_STARTING] = {
.enter_state = scic_sds_remote_device_starting_state_enter,
},
[SCI_BASE_REMOTE_DEVICE_STATE_READY] = {
[SCI_DEV_READY] = {
.enter_state = scic_sds_remote_device_ready_state_enter,
.exit_state = scic_sds_remote_device_ready_state_exit
},
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = {
[SCI_STP_DEV_IDLE] = {
.enter_state = scic_sds_stp_remote_device_ready_idle_substate_enter,
},
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = {
[SCI_STP_DEV_CMD] = {
.enter_state = scic_sds_stp_remote_device_ready_cmd_substate_enter,
},
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ] = { },
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR] = {
[SCI_STP_DEV_NCQ] = { },
[SCI_STP_DEV_NCQ_ERROR] = {
.enter_state = scic_sds_stp_remote_device_ready_ncq_error_substate_enter,
},
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET] = { },
[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = {
[SCI_STP_DEV_AWAIT_RESET] = { },
[SCI_SMP_DEV_IDLE] = {
.enter_state = scic_sds_smp_remote_device_ready_idle_substate_enter,
},
[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = {
[SCI_SMP_DEV_CMD] = {
.enter_state = scic_sds_smp_remote_device_ready_cmd_substate_enter,
.exit_state = scic_sds_smp_remote_device_ready_cmd_substate_exit,
},
[SCI_BASE_REMOTE_DEVICE_STATE_STOPPING] = { },
[SCI_BASE_REMOTE_DEVICE_STATE_FAILED] = { },
[SCI_BASE_REMOTE_DEVICE_STATE_RESETTING] = {
[SCI_DEV_STOPPING] = { },
[SCI_DEV_FAILED] = { },
[SCI_DEV_RESETTING] = {
.enter_state = scic_sds_remote_device_resetting_state_enter,
.exit_state = scic_sds_remote_device_resetting_state_exit
},
[SCI_BASE_REMOTE_DEVICE_STATE_FINAL] = { },
[SCI_DEV_FINAL] = { },
};
/**
@ -1102,11 +1095,11 @@ static void scic_remote_device_construct(struct scic_sds_port *sci_port,
sci_dev->owning_port = sci_port;
sci_dev->started_request_count = 0;
sci_base_state_machine_construct(&sci_dev->state_machine,
sci_base_state_machine_construct(&sci_dev->sm,
scic_sds_remote_device_state_table,
SCI_BASE_REMOTE_DEVICE_STATE_INITIAL);
SCI_DEV_INITIAL);
sci_base_state_machine_start(&sci_dev->state_machine);
sci_base_state_machine_start(&sci_dev->sm);
scic_sds_remote_node_context_construct(&sci_dev->rnc,
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX);
@ -1224,11 +1217,11 @@ static enum sci_status scic_remote_device_ea_construct(struct scic_sds_port *sci
static enum sci_status scic_remote_device_start(struct scic_sds_remote_device *sci_dev,
u32 timeout)
{
struct sci_base_state_machine *sm = &sci_dev->state_machine;
struct sci_base_state_machine *sm = &sci_dev->sm;
enum scic_sds_remote_device_states state = sm->current_state_id;
enum sci_status status;
if (state != SCI_BASE_REMOTE_DEVICE_STATE_STOPPED) {
if (state != SCI_DEV_STOPPED) {
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
@ -1240,7 +1233,7 @@ static enum sci_status scic_remote_device_start(struct scic_sds_remote_device *s
if (status != SCI_SUCCESS)
return status;
sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_STARTING);
sci_change_state(sm, SCI_DEV_STARTING);
return SCI_SUCCESS;
}

34
drivers/scsi/isci/remote_device.h
View file

@ -74,7 +74,7 @@ struct scic_sds_remote_device {
* This field contains the information for the base remote device state
* machine.
*/
struct sci_base_state_machine state_machine;
struct sci_base_state_machine sm;
/**
* This field is the programmed device port width. This value is
@ -109,7 +109,7 @@ struct scic_sds_remote_device {
/**
* This field contains the stated request count for the remote device. The
* device can not reach the SCI_BASE_REMOTE_DEVICE_STATE_STOPPED until all
* device can not reach the SCI_DEV_STOPPED until all
* requests are complete and the rnc_posted value is false.
*/
u32 started_request_count;
@ -213,7 +213,7 @@ enum scic_sds_remote_device_states {
/**
* Simply the initial state for the base remote device state machine.
*/
SCI_BASE_REMOTE_DEVICE_STATE_INITIAL,
SCI_DEV_INITIAL,
/**
* This state indicates that the remote device has successfully been
@ -221,7 +221,7 @@ enum scic_sds_remote_device_states {
* This state is entered from the INITIAL state.
* This state is entered from the STOPPING state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED,
SCI_DEV_STOPPED,
/**
* This state indicates the the remote device is in the process of
@ -229,34 +229,34 @@ enum scic_sds_remote_device_states {
* are permitted.
* This state is entered from the STOPPED state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_STARTING,
SCI_DEV_STARTING,
/**
* This state indicates the remote device is now ready. Thus, the user
* is able to perform IO operations on the remote device.
* This state is entered from the STARTING state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_READY,
SCI_DEV_READY,
/**
* This is the idle substate for the stp remote device. When there are no
* active IO for the device it is is in this state.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE,
SCI_STP_DEV_IDLE,
/**
* This is the command state for for the STP remote device. This state is
* entered when the device is processing a non-NCQ command. The device object
* will fail any new start IO requests until this command is complete.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD,
SCI_STP_DEV_CMD,
/**
* This is the NCQ state for the STP remote device. This state is entered
* when the device is processing an NCQ reuqest. It will remain in this state
* so long as there is one or more NCQ requests being processed.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ,
SCI_STP_DEV_NCQ,
/**
* This is the NCQ error state for the STP remote device. This state is
@ -264,25 +264,25 @@ enum scic_sds_remote_device_states {
* NCQ state. The device object will only accept a READ LOG command while in
* this state.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR,
SCI_STP_DEV_NCQ_ERROR,
/**
* This is the READY substate indicates the device is waiting for the RESET task
* coming to be recovered from certain hardware specific error.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET,
SCI_STP_DEV_AWAIT_RESET,
/**
* This is the ready operational substate for the remote device. This is the
* normal operational state for a remote device.
*/
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE,
SCI_SMP_DEV_IDLE,
/**
* This is the suspended state for the remote device. This is the state that
* the device is placed in when a RNC suspend is received by the SCU hardware.
*/
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD,
SCI_SMP_DEV_CMD,
/**
* This state indicates that the remote device is in the process of
@ -291,7 +291,7 @@ enum scic_sds_remote_device_states {
* This state is entered from the READY state.
* This state is entered from the FAILED state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_STOPPING,
SCI_DEV_STOPPING,
/**
* This state indicates that the remote device has failed.
@ -299,19 +299,19 @@ enum scic_sds_remote_device_states {
* This state is entered from the INITIALIZING state.
* This state is entered from the READY state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_FAILED,
SCI_DEV_FAILED,
/**
* This state indicates the device is being reset.
* In this state no new IO operations are permitted.
* This state is entered from the READY state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_RESETTING,
SCI_DEV_RESETTING,
/**
* Simply the final state for the base remote device state machine.
*/
SCI_BASE_REMOTE_DEVICE_STATE_FINAL,
SCI_DEV_FINAL,
};
static inline struct scic_sds_remote_device *rnc_to_dev(struct scic_sds_remote_node_context *rnc)

154
drivers/scsi/isci/remote_node_context.c
View file

@ -84,9 +84,9 @@
bool scic_sds_remote_node_context_is_ready(
struct scic_sds_remote_node_context *sci_rnc)
{
u32 current_state = sci_base_state_machine_get_state(&sci_rnc->state_machine);
u32 current_state = sci_rnc->sm.current_state_id;
if (current_state == SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) {
if (current_state == SCI_RNC_READY) {
return true;
}
@ -268,12 +268,12 @@ static void scic_sds_remote_node_context_invalidate_context_buffer(
static void scic_sds_remote_node_context_initial_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine);
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm);
/* Check to see if we have gotten back to the initial state because
* someone requested to destroy the remote node context object.
*/
if (sm->previous_state_id == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE) {
if (sm->previous_state_id == SCI_RNC_INVALIDATING) {
rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED;
scic_sds_remote_node_context_notify_user(rnc);
}
@ -281,21 +281,21 @@ static void scic_sds_remote_node_context_initial_state_enter(struct sci_base_sta
static void scic_sds_remote_node_context_posting_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), state_machine);
struct scic_sds_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), sm);
scic_sds_remote_node_context_validate_context_buffer(sci_rnc);
}
static void scic_sds_remote_node_context_invalidating_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine);
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm);
scic_sds_remote_node_context_invalidate_context_buffer(rnc);
}
static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine);
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm);
struct scic_sds_remote_device *sci_dev;
struct domain_device *dev;
@ -318,7 +318,7 @@ static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_st
static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine);
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm);
rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED;
@ -328,41 +328,41 @@ static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state
static void scic_sds_remote_node_context_tx_suspended_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine);
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm);
scic_sds_remote_node_context_continue_state_transitions(rnc);
}
static void scic_sds_remote_node_context_tx_rx_suspended_state_enter(struct sci_base_state_machine *sm)
{
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine);
struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm);
scic_sds_remote_node_context_continue_state_transitions(rnc);
}
static const struct sci_base_state scic_sds_remote_node_context_state_table[] = {
[SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = {
[SCI_RNC_INITIAL] = {
.enter_state = scic_sds_remote_node_context_initial_state_enter,
},
[SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = {
[SCI_RNC_POSTING] = {
.enter_state = scic_sds_remote_node_context_posting_state_enter,
},
[SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = {
[SCI_RNC_INVALIDATING] = {
.enter_state = scic_sds_remote_node_context_invalidating_state_enter,
},
[SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = {
[SCI_RNC_RESUMING] = {
.enter_state = scic_sds_remote_node_context_resuming_state_enter,
},
[SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = {
[SCI_RNC_READY] = {
.enter_state = scic_sds_remote_node_context_ready_state_enter,
},
[SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = {
[SCI_RNC_TX_SUSPENDED] = {
.enter_state = scic_sds_remote_node_context_tx_suspended_state_enter,
},
[SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = {
[SCI_RNC_TX_RX_SUSPENDED] = {
.enter_state = scic_sds_remote_node_context_tx_rx_suspended_state_enter,
},
[SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { },
[SCI_RNC_AWAIT_SUSPENSION] = { },
};
void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc,
@ -373,11 +373,11 @@ void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context
rnc->remote_node_index = remote_node_index;
rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED;
sci_base_state_machine_construct(&rnc->state_machine,
sci_base_state_machine_construct(&rnc->sm,
scic_sds_remote_node_context_state_table,
SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE);
SCI_RNC_INITIAL);
sci_base_state_machine_start(&rnc->state_machine);
sci_base_state_machine_start(&rnc->sm);
}
enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remote_node_context *sci_rnc,
@ -385,26 +385,24 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot
{
enum scis_sds_remote_node_context_states state;
state = sci_rnc->state_machine.current_state_id;
state = sci_rnc->sm.current_state_id;
switch (state) {
case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE:
case SCI_RNC_POSTING:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_POST_RNC_COMPLETE:
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_READY);
break;
default:
goto out;
}
break;
case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE:
case SCI_RNC_INVALIDATING:
if (scu_get_event_code(event_code) == SCU_EVENT_POST_RNC_INVALIDATE_COMPLETE) {
if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL)
state = SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE;
state = SCI_RNC_INITIAL;
else
state = SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE;
sci_base_state_machine_change_state(&sci_rnc->state_machine,
state);
state = SCI_RNC_POSTING;
sci_change_state(&sci_rnc->sm, state);
} else {
switch (scu_get_event_type(event_code)) {
case SCU_EVENT_TYPE_RNC_SUSPEND_TX:
@ -421,10 +419,9 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot
}
}
break;
case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE:
case SCI_RNC_RESUMING:
if (scu_get_event_code(event_code) == SCU_EVENT_POST_RCN_RELEASE) {
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_READY);
} else {
switch (scu_get_event_type(event_code)) {
case SCU_EVENT_TYPE_RNC_SUSPEND_TX:
@ -441,32 +438,28 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot
}
}
break;
case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE:
case SCI_RNC_READY:
switch (scu_get_event_type(event_code)) {
case SCU_EVENT_TL_RNC_SUSPEND_TX:
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_TX_SUSPENDED);
sci_rnc->suspension_code = scu_get_event_specifier(event_code);
break;
case SCU_EVENT_TL_RNC_SUSPEND_TX_RX:
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_TX_RX_SUSPENDED);
sci_rnc->suspension_code = scu_get_event_specifier(event_code);
break;
default:
goto out;
}
break;
case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE:
case SCI_RNC_AWAIT_SUSPENSION:
switch (scu_get_event_type(event_code)) {
case SCU_EVENT_TL_RNC_SUSPEND_TX:
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_TX_SUSPENDED);
sci_rnc->suspension_code = scu_get_event_specifier(event_code);
break;
case SCU_EVENT_TL_RNC_SUSPEND_TX_RX:
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_TX_RX_SUSPENDED);
sci_rnc->suspension_code = scu_get_event_specifier(event_code);
break;
default:
@ -493,22 +486,21 @@ enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_nod
{
enum scis_sds_remote_node_context_states state;
state = sci_rnc->state_machine.current_state_id;
state = sci_rnc->sm.current_state_id;
switch (state) {
case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE:
case SCI_RNC_INVALIDATING:
scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p);
return SCI_SUCCESS;
case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE:
case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE:
case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE:
case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE:
case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE:
case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE:
case SCI_RNC_POSTING:
case SCI_RNC_RESUMING:
case SCI_RNC_READY:
case SCI_RNC_TX_SUSPENDED:
case SCI_RNC_TX_RX_SUSPENDED:
case SCI_RNC_AWAIT_SUSPENSION:
scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p);
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_INVALIDATING);
return SCI_SUCCESS;
case SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE:
case SCI_RNC_INITIAL:
dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)),
"%s: invalid state %d\n", __func__, state);
/* We have decided that the destruct request on the remote node context
@ -530,8 +522,8 @@ enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node
{
enum scis_sds_remote_node_context_states state;
state = sci_rnc->state_machine.current_state_id;
if (state != SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) {
state = sci_rnc->sm.current_state_id;
if (state != SCI_RNC_READY) {
dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)),
"%s: invalid state %d\n", __func__, state);
return SCI_FAILURE_INVALID_STATE;
@ -546,8 +538,7 @@ enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node
SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX);
}
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_AWAIT_SUSPENSION);
return SCI_SUCCESS;
}
@ -557,27 +548,26 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_
{
enum scis_sds_remote_node_context_states state;
state = sci_rnc->state_machine.current_state_id;
state = sci_rnc->sm.current_state_id;
switch (state) {
case SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE:
case SCI_RNC_INITIAL:
if (sci_rnc->remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX)
return SCI_FAILURE_INVALID_STATE;
scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p);
scic_sds_remote_node_context_construct_buffer(sci_rnc);
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_POSTING);
return SCI_SUCCESS;
case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE:
case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE:
case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE:
case SCI_RNC_POSTING:
case SCI_RNC_INVALIDATING:
case SCI_RNC_RESUMING:
if (sci_rnc->destination_state != SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY)
return SCI_FAILURE_INVALID_STATE;
sci_rnc->user_callback = cb_fn;
sci_rnc->user_cookie = cb_p;
return SCI_SUCCESS;
case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE: {
case SCI_RNC_TX_SUSPENDED: {
struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc);
struct domain_device *dev = sci_dev_to_domain(sci_dev);
@ -585,27 +575,23 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_
/* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */
if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev))
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING);
else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) {
if (sci_dev->is_direct_attached) {
/* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING);
} else {
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_INVALIDATING);
}
} else
return SCI_FAILURE;
return SCI_SUCCESS;
}
case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE:
case SCI_RNC_TX_RX_SUSPENDED:
scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p);
sci_base_state_machine_change_state(&sci_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE);
sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING);
return SCI_FAILURE_INVALID_STATE;
case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE:
case SCI_RNC_AWAIT_SUSPENSION:
scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p);
return SCI_SUCCESS;
default:
@ -620,8 +606,8 @@ enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_nod
{
enum scis_sds_remote_node_context_states state;
state = sci_rnc->state_machine.current_state_id;
if (state != SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) {
state = sci_rnc->sm.current_state_id;
if (state != SCI_RNC_READY) {
dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)),
"%s: invalid state %d\n", __func__, state);
return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED;
@ -634,14 +620,14 @@ enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_n
{
enum scis_sds_remote_node_context_states state;
state = sci_rnc->state_machine.current_state_id;
state = sci_rnc->sm.current_state_id;
switch (state) {
case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE:
case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE:
case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE:
case SCI_RNC_RESUMING:
case SCI_RNC_READY:
case SCI_RNC_AWAIT_SUSPENSION:
return SCI_SUCCESS;
case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE:
case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE:
case SCI_RNC_TX_SUSPENDED:
case SCI_RNC_TX_RX_SUSPENDED:
scic_sds_remote_node_context_resume(sci_rnc, NULL, NULL);
return SCI_SUCCESS;
default:

18
drivers/scsi/isci/remote_node_context.h
View file

@ -92,45 +92,45 @@ enum scis_sds_remote_node_context_states {
* This state is the initial state for a remote node context. On a resume
* request the remote node context will transition to the posting state.
*/
SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE,
SCI_RNC_INITIAL,
/**
* This is a transition state that posts the RNi to the hardware. Once the RNC
* is posted the remote node context will be made ready.
*/
SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE,
SCI_RNC_POSTING,
/**
* This is a transition state that will post an RNC invalidate to the
* hardware. Once the invalidate is complete the remote node context will
* transition to the posting state.
*/
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE,
SCI_RNC_INVALIDATING,
/**
* This is a transition state that will post an RNC resume to the hardare.
* Once the event notification of resume complete is received the remote node
* context will transition to the ready state.
*/
SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE,
SCI_RNC_RESUMING,
/**
* This is the state that the remote node context must be in to accept io
* request operations.
*/
SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE,
SCI_RNC_READY,
/**
* This is the state that the remote node context transitions to when it gets
* a TX suspend notification from the hardware.
*/
SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE,
SCI_RNC_TX_SUSPENDED,
/**
* This is the state that the remote node context transitions to when it gets
* a TX RX suspend notification from the hardware.
*/
SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE,
SCI_RNC_TX_RX_SUSPENDED,
/**
* This state is a wait state for the remote node context that waits for a
@ -138,7 +138,7 @@ enum scis_sds_remote_node_context_states {
* there is a request to supend the remote node context or when there is a TC
* completion where the remote node will be suspended by the hardware.
*/
SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE
SCI_RNC_AWAIT_SUSPENSION
};
/**
@ -194,7 +194,7 @@ struct scic_sds_remote_node_context {
/**
* This field contains the data for the object's state machine.
*/
struct sci_base_state_machine state_machine;
struct sci_base_state_machine sm;
};
void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc,

582
drivers/scsi/isci/request.c
View file

File diff suppressed because it is too large Load diff

357
drivers/scsi/isci/request.h
View file

@ -96,37 +96,42 @@ struct scic_sds_stp_request {
u32 udma;
struct scic_sds_stp_pio_request {
/**
* Total transfer for the entire PIO request recorded at request constuction
* time.
/*
* Total transfer for the entire PIO request recorded
* at request constuction time.
*
* @todo Should we just decrement this value for each byte of data transitted
* or received to elemenate the current_transfer_bytes field?
* @todo Should we just decrement this value for each
* byte of data transitted or received to elemenate
* the current_transfer_bytes field?
*/
u32 total_transfer_bytes;
/**
* Total number of bytes received/transmitted in data frames since the start
* of the IO request. At the end of the IO request this should equal the
/*
* Total number of bytes received/transmitted in data
* frames since the start of the IO request. At the
* end of the IO request this should equal the
* total_transfer_bytes.
*/
u32 current_transfer_bytes;
/**
* The number of bytes requested in the in the PIO setup.
/*
* The number of bytes requested in the in the PIO
* setup.
*/
u32 pio_transfer_bytes;
/**
* PIO Setup ending status value to tell us if we need to wait for another FIS
* or if the transfer is complete. On the receipt of a D2H FIS this will be
/*
* PIO Setup ending status value to tell us if we need
* to wait for another FIS or if the transfer is
* complete. On the receipt of a D2H FIS this will be
* the status field of that FIS.
*/
u8 ending_status;
/**
* On receipt of a D2H FIS this will be the ending error field if the
* ending_status has the SATA_STATUS_ERR bit set.
/*
* On receipt of a D2H FIS this will be the ending
* error field if the ending_status has the
* SATA_STATUS_ERR bit set.
*/
u8 ending_error;
@ -138,8 +143,9 @@ struct scic_sds_stp_request {
} pio;
struct {
/**
* The number of bytes requested in the PIO setup before CDB data frame.
/*
* The number of bytes requested in the PIO setup
* before CDB data frame.
*/
u32 device_preferred_cdb_length;
} packet;
@ -147,57 +153,59 @@ struct scic_sds_stp_request {
};
struct scic_sds_request {
/**
* This field contains the information for the base request state machine.
/*
* This field contains the information for the base request state
* machine.
*/
struct sci_base_state_machine state_machine;
struct sci_base_state_machine sm;
/**
/*
* This field simply points to the controller to which this IO request
* is associated.
*/
struct scic_sds_controller *owning_controller;
/**
* This field simply points to the remote device to which this IO request
* is associated.
/*
* This field simply points to the remote device to which this IO
* request is associated.
*/
struct scic_sds_remote_device *target_device;
/**
/*
* This field is utilized to determine if the SCI user is managing
* the IO tag for this request or if the core is managing it.
*/
bool was_tag_assigned_by_user;
/**
/*
* This field indicates the IO tag for this request. The IO tag is
* comprised of the task_index and a sequence count. The sequence count
* is utilized to help identify tasks from one life to another.
*/
u16 io_tag;
/**
/*
* This field specifies the protocol being utilized for this
* IO request.
*/
enum sci_request_protocol protocol;
/**
/*
* This field indicates the completion status taken from the SCUs
* completion code. It indicates the completion result for the SCU hardware.
* completion code. It indicates the completion result for the SCU
* hardware.
*/
u32 scu_status;
/**
* This field indicates the completion status returned to the SCI user. It
* indicates the users view of the io request completion.
/*
* This field indicates the completion status returned to the SCI user.
* It indicates the users view of the io request completion.
*/
u32 sci_status;
/**
* This field contains the value to be utilized when posting (e.g. Post_TC,
* Post_TC_Abort) this request to the silicon.
/*
* This field contains the value to be utilized when posting
* (e.g. Post_TC, * Post_TC_Abort) this request to the silicon.
*/
u32 post_context;
@ -208,26 +216,26 @@ struct scic_sds_request {
#define SCU_SGL_SIZE ((SCU_IO_REQUEST_SGE_COUNT + 1) / 2)
struct scu_sgl_element_pair sg_table[SCU_SGL_SIZE] __attribute__ ((aligned(32)));
/**
/*
* This field indicates if this request is a task management request or
* normal IO request.
*/
bool is_task_management_request;
/**
* This field is a pointer to the stored rx frame data. It is used in STP
* internal requests and SMP response frames. If this field is non-NULL the
* saved frame must be released on IO request completion.
/*
* This field is a pointer to the stored rx frame data. It is used in
* STP internal requests and SMP response frames. If this field is
* non-NULL the saved frame must be released on IO request completion.
*
* @todo In the future do we want to keep a list of RX frame buffers?
*/
u32 saved_rx_frame_index;
/**
* This field in the recorded device sequence for the io request. This is
* recorded during the build operation and is compared in the start
* operation. If the sequence is different then there was a change of
* devices from the build to start operations.
/*
* This field in the recorded device sequence for the io request.
* This is recorded during the build operation and is compared in the
* start operation. If the sequence is different then there was a
* change of devices from the build to start operations.
*/
u8 device_sequence;
@ -286,7 +294,7 @@ struct isci_request {
dma_addr_t request_daddr;
dma_addr_t zero_scatter_daddr;
unsigned int num_sg_entries; /* returned by pci_alloc_sg */
unsigned int num_sg_entries; /* returned by pci_alloc_sg */
/** Note: "io_request_completion" is completed in two different ways
* depending on whether this is a TMF or regular request.
@ -315,104 +323,105 @@ static inline struct isci_request *sci_req_to_ireq(struct scic_sds_request *sci_
*
*/
enum sci_base_request_states {
/**
/*
* Simply the initial state for the base request state machine.
*/
SCI_BASE_REQUEST_STATE_INITIAL,
SCI_REQ_INIT,
/**
* This state indicates that the request has been constructed. This state
* is entered from the INITIAL state.
/*
* This state indicates that the request has been constructed.
* This state is entered from the INITIAL state.
*/
SCI_BASE_REQUEST_STATE_CONSTRUCTED,
SCI_REQ_CONSTRUCTED,
/**
* This state indicates that the request has been started. This state is
* entered from the CONSTRUCTED state.
/*
* This state indicates that the request has been started. This state
* is entered from the CONSTRUCTED state.
*/
SCI_BASE_REQUEST_STATE_STARTED,
SCI_REQ_STARTED,
SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE,
SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_D2H_REG_FIS_SUBSTATE,
SCI_REQ_STP_UDMA_WAIT_TC_COMP,
SCI_REQ_STP_UDMA_WAIT_D2H,
SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE,
SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE,
SCI_REQ_STP_NON_DATA_WAIT_H2D,
SCI_REQ_STP_NON_DATA_WAIT_D2H,
SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE,
SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE,
SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_D2H_RESPONSE_FRAME_SUBSTATE,
SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED,
SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG,
SCI_REQ_STP_SOFT_RESET_WAIT_D2H,
/**
* While in this state the IO request object is waiting for the TC completion
* notification for the H2D Register FIS
/*
* While in this state the IO request object is waiting for the TC
* completion notification for the H2D Register FIS
*/
SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE,
SCI_REQ_STP_PIO_WAIT_H2D,
/**
* While in this state the IO request object is waiting for either a PIO Setup
* FIS or a D2H register FIS. The type of frame received is based on the
* result of the prior frame and line conditions.
/*
* While in this state the IO request object is waiting for either a
* PIO Setup FIS or a D2H register FIS. The type of frame received is
* based on the result of the prior frame and line conditions.
*/
SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE,
SCI_REQ_STP_PIO_WAIT_FRAME,
/**
* While in this state the IO request object is waiting for a DATA frame from
* the device.
/*
* While in this state the IO request object is waiting for a DATA
* frame from the device.
*/
SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE,
SCI_REQ_STP_PIO_DATA_IN,
/**
* While in this state the IO request object is waiting to transmit the next data
* frame to the device.
/*
* While in this state the IO request object is waiting to transmit
* the next data frame to the device.
*/
SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE,
SCI_REQ_STP_PIO_DATA_OUT,
/**
/*
* The AWAIT_TC_COMPLETION sub-state indicates that the started raw
* task management request is waiting for the transmission of the
* initial frame (i.e. command, task, etc.).
*/
SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION,
SCI_REQ_TASK_WAIT_TC_COMP,
/**
/*
* This sub-state indicates that the started task management request
* is waiting for the reception of an unsolicited frame
* (i.e. response IU).
*/
SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE,
SCI_REQ_TASK_WAIT_TC_RESP,
/**
/*
* This sub-state indicates that the started task management request
* is waiting for the reception of an unsolicited frame
* (i.e. response IU).
*/
SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE,
SCI_REQ_SMP_WAIT_RESP,
/**
* The AWAIT_TC_COMPLETION sub-state indicates that the started SMP request is
* waiting for the transmission of the initial frame (i.e. command, task, etc.).
/*
* The AWAIT_TC_COMPLETION sub-state indicates that the started SMP
* request is waiting for the transmission of the initial frame
* (i.e. command, task, etc.).
*/
SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION,
SCI_REQ_SMP_WAIT_TC_COMP,
/**
/*
* This state indicates that the request has completed.
* This state is entered from the STARTED state. This state is entered from
* the ABORTING state.
* This state is entered from the STARTED state. This state is entered
* from the ABORTING state.
*/
SCI_BASE_REQUEST_STATE_COMPLETED,
SCI_REQ_COMPLETED,
/**
/*
* This state indicates that the request is in the process of being
* terminated/aborted.
* This state is entered from the CONSTRUCTED state.
* This state is entered from the STARTED state.
*/
SCI_BASE_REQUEST_STATE_ABORTING,
SCI_REQ_ABORTING,
/**
/*
* Simply the final state for the base request state machine.
*/
SCI_BASE_REQUEST_STATE_FINAL,
SCI_REQ_FINAL,
};
/**
@ -498,13 +507,18 @@ enum sci_base_request_states {
enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req);
enum sci_status scic_sds_io_request_terminate(struct scic_sds_request *sci_req);
enum sci_status scic_sds_io_request_event_handler(struct scic_sds_request *sci_req,
u32 event_code);
enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req,
u32 frame_index);
enum sci_status scic_sds_task_request_terminate(struct scic_sds_request *sci_req);
extern enum sci_status scic_sds_request_complete(struct scic_sds_request *sci_req);
extern enum sci_status scic_sds_io_request_tc_completion(struct scic_sds_request *sci_req, u32 code);
enum sci_status
scic_sds_io_request_event_handler(struct scic_sds_request *sci_req,
u32 event_code);
enum sci_status
scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req,
u32 frame_index);
enum sci_status
scic_sds_task_request_terminate(struct scic_sds_request *sci_req);
extern enum sci_status
scic_sds_request_complete(struct scic_sds_request *sci_req);
extern enum sci_status
scic_sds_io_request_tc_completion(struct scic_sds_request *sci_req, u32 code);
/* XXX open code in caller */
static inline void *scic_request_get_virt_addr(struct scic_sds_request *sci_req,
@ -523,8 +537,8 @@ static inline void *scic_request_get_virt_addr(struct scic_sds_request *sci_req,
}
/* XXX open code in caller */
static inline dma_addr_t scic_io_request_get_dma_addr(struct scic_sds_request *sci_req,
void *virt_addr)
static inline dma_addr_t
scic_io_request_get_dma_addr(struct scic_sds_request *sci_req, void *virt_addr)
{
struct isci_request *ireq = sci_req_to_ireq(sci_req);
@ -543,9 +557,8 @@ static inline dma_addr_t scic_io_request_get_dma_addr(struct scic_sds_request *s
*
* status of the object as a isci_request_status enum.
*/
static inline
enum isci_request_status isci_request_get_state(
struct isci_request *isci_request)
static inline enum isci_request_status
isci_request_get_state(struct isci_request *isci_request)
{
BUG_ON(isci_request == NULL);
@ -566,9 +579,9 @@ enum isci_request_status isci_request_get_state(
* @status: This Parameter is the new status of the object
*
*/
static inline enum isci_request_status isci_request_change_state(
struct isci_request *isci_request,
enum isci_request_status status)
static inline enum isci_request_status
isci_request_change_state(struct isci_request *isci_request,
enum isci_request_status status)
{
enum isci_request_status old_state;
unsigned long flags;
@ -597,10 +610,10 @@ static inline enum isci_request_status isci_request_change_state(
*
* state previous to any change.
*/
static inline enum isci_request_status isci_request_change_started_to_newstate(
struct isci_request *isci_request,
struct completion *completion_ptr,
enum isci_request_status newstate)
static inline enum isci_request_status
isci_request_change_started_to_newstate(struct isci_request *isci_request,
struct completion *completion_ptr,
enum isci_request_status newstate)
{
enum isci_request_status old_state;
unsigned long flags;
@ -615,6 +628,7 @@ static inline enum isci_request_status isci_request_change_started_to_newstate(
isci_request->io_request_completion = completion_ptr;
isci_request->status = newstate;
}
spin_unlock_irqrestore(&isci_request->state_lock, flags);
dev_dbg(&isci_request->isci_host->pdev->dev,
@ -635,13 +649,13 @@ static inline enum isci_request_status isci_request_change_started_to_newstate(
*
* state previous to any change.
*/
static inline enum isci_request_status isci_request_change_started_to_aborted(
struct isci_request *isci_request,
struct completion *completion_ptr)
static inline enum isci_request_status
isci_request_change_started_to_aborted(struct isci_request *isci_request,
struct completion *completion_ptr)
{
return isci_request_change_started_to_newstate(
isci_request, completion_ptr, aborted
);
return isci_request_change_started_to_newstate(isci_request,
completion_ptr,
aborted);
}
/**
* isci_request_free() - This function frees the request object.
@ -649,62 +663,33 @@ static inline enum isci_request_status isci_request_change_started_to_aborted(
* @isci_request: This parameter points to the isci_request object
*
*/
static inline void isci_request_free(
struct isci_host *isci_host,
struct isci_request *isci_request)
static inline void isci_request_free(struct isci_host *isci_host,
struct isci_request *isci_request)
{
if (!isci_request)
return;
/* release the dma memory if we fail. */
dma_pool_free(isci_host->dma_pool, isci_request,
dma_pool_free(isci_host->dma_pool,
isci_request,
isci_request->request_daddr);
}
#define isci_request_access_task(req) ((req)->ttype_ptr.io_task_ptr)
/* #define ISCI_REQUEST_VALIDATE_ACCESS
*/
#define isci_request_access_tmf(req) ((req)->ttype_ptr.tmf_task_ptr)
#ifdef ISCI_REQUEST_VALIDATE_ACCESS
static inline
struct sas_task *isci_request_access_task(struct isci_request *isci_request)
{
BUG_ON(isci_request->ttype != io_task);
return isci_request->ttype_ptr.io_task_ptr;
}
static inline
struct isci_tmf *isci_request_access_tmf(struct isci_request *isci_request)
{
BUG_ON(isci_request->ttype != tmf_task);
return isci_request->ttype_ptr.tmf_task_ptr;
}
#else /* not ISCI_REQUEST_VALIDATE_ACCESS */
#define isci_request_access_task(RequestPtr) \
((RequestPtr)->ttype_ptr.io_task_ptr)
#define isci_request_access_tmf(RequestPtr) \
((RequestPtr)->ttype_ptr.tmf_task_ptr)
#endif /* not ISCI_REQUEST_VALIDATE_ACCESS */
int isci_request_alloc_tmf(struct isci_host *isci_host,
struct isci_tmf *isci_tmf,
struct isci_request **isci_request,
struct isci_remote_device *isci_device,
gfp_t gfp_flags);
int isci_request_alloc_tmf(
struct isci_host *isci_host,
struct isci_tmf *isci_tmf,
struct isci_request **isci_request,
struct isci_remote_device *isci_device,
gfp_t gfp_flags);
int isci_request_execute(
struct isci_host *isci_host,
struct sas_task *task,
struct isci_request **request,
gfp_t gfp_flags);
int isci_request_execute(struct isci_host *isci_host,
struct sas_task *task,
struct isci_request **request,
gfp_t gfp_flags);
/**
* isci_request_unmap_sgl() - This function unmaps the DMA address of a given
@ -713,9 +698,8 @@ int isci_request_execute(
* @*pdev: This Parameter is the pci_device struct for the controller
*
*/
static inline void isci_request_unmap_sgl(
struct isci_request *request,
struct pci_dev *pdev)
static inline void
isci_request_unmap_sgl(struct isci_request *request, struct pci_dev *pdev)
{
struct sas_task *task = isci_request_access_task(request);
@ -758,9 +742,9 @@ static inline void isci_request_unmap_sgl(
*
* pointer to the next sge for specified request.
*/
static inline void *isci_request_io_request_get_next_sge(
struct isci_request *request,
void *current_sge_address)
static inline void *
isci_request_io_request_get_next_sge(struct isci_request *request,
void *current_sge_address)
{
struct sas_task *task = isci_request_access_task(request);
void *ret = NULL;
@ -791,15 +775,20 @@ static inline void *isci_request_io_request_get_next_sge(
return ret;
}
void isci_terminate_pending_requests(struct isci_host *isci_host,
struct isci_remote_device *isci_device,
enum isci_request_status new_request_state);
enum sci_status scic_task_request_construct(struct scic_sds_controller *scic,
struct scic_sds_remote_device *sci_dev,
u16 io_tag,
struct scic_sds_request *sci_req);
enum sci_status scic_task_request_construct_ssp(struct scic_sds_request *sci_req);
enum sci_status scic_task_request_construct_sata(struct scic_sds_request *sci_req);
void scic_stp_io_request_set_ncq_tag(struct scic_sds_request *sci_req, u16 ncq_tag);
void
isci_terminate_pending_requests(struct isci_host *isci_host,
struct isci_remote_device *isci_device,
enum isci_request_status new_request_state);
enum sci_status
scic_task_request_construct(struct scic_sds_controller *scic,
struct scic_sds_remote_device *sci_dev,
u16 io_tag,
struct scic_sds_request *sci_req);
enum sci_status
scic_task_request_construct_ssp(struct scic_sds_request *sci_req);
enum sci_status
scic_task_request_construct_sata(struct scic_sds_request *sci_req);
void
scic_stp_io_request_set_ncq_tag(struct scic_sds_request *sci_req, u16 ncq_tag);
void scic_sds_smp_request_copy_response(struct scic_sds_request *sci_req);
#endif /* !defined(_ISCI_REQUEST_H_) */

26
drivers/scsi/isci/state_machine.c
View file

@ -127,16 +127,7 @@ void sci_base_state_machine_stop(
sci_state_machine_exit_state(sm);
}
/**
* This method performs an update to the current state of the state machine.
* @sm: This parameter specifies the state machine for which
* the caller wishes to perform a state change.
* @next_state: This parameter specifies the new state for the state machine.
*
*/
void sci_base_state_machine_change_state(
struct sci_base_state_machine *sm,
u32 next_state)
void sci_change_state(struct sci_base_state_machine *sm, u32 next_state)
{
sci_state_machine_exit_state(sm);
@ -145,18 +136,3 @@ void sci_base_state_machine_change_state(
sci_state_machine_enter_state(sm);
}
/**
* This method simply returns the current state of the state machine to the
* caller.
* @sm: This parameter specifies the state machine for which to
* retrieve the current state.
*
* This method returns a u32 value indicating the current state for the
* supplied state machine.
*/
u32 sci_base_state_machine_get_state(struct sci_base_state_machine *sm)
{
return sm->current_state_id;
}

4
drivers/scsi/isci/state_machine.h
View file

@ -117,8 +117,6 @@ void sci_base_state_machine_construct(struct sci_base_state_machine *sm,
u32 initial_state);
void sci_base_state_machine_start(struct sci_base_state_machine *sm);
void sci_base_state_machine_stop(struct sci_base_state_machine *sm);
void sci_base_state_machine_change_state(struct sci_base_state_machine *sm,
u32 next_state);
u32 sci_base_state_machine_get_state(struct sci_base_state_machine *sm);
void sci_change_state(struct sci_base_state_machine *sm, u32 next_state);
#endif /* _SCI_BASE_STATE_MACHINE_H_ */