return true;
}
-/**
- * This method is the entry point for the phy to inform the port that it is now
- * in a ready state
- * @sci_port:
- *
- *
- */
-void scic_sds_port_link_up(
- struct scic_sds_port *sci_port,
- struct scic_sds_phy *sci_phy)
-{
- sci_phy->is_in_link_training = false;
-
- sci_port->state_handlers->link_up_handler(sci_port, sci_phy);
-}
-
-/**
- * This method is the entry point for the phy to inform the port that it is no
- * longer in a ready state
- * @sci_port:
- *
- *
- */
-void scic_sds_port_link_down(
- struct scic_sds_port *sci_port,
- struct scic_sds_phy *sci_phy)
-{
- sci_port->state_handlers->link_down_handler(sci_port, sci_phy);
-}
-
/**
* This method is called to start an IO request on this port.
* @sci_port:
return SCI_SUCCESS;
}
-/**
- *
- * @sci_port: This is the struct scic_sds_port object that which has a phy that has
- * gone link up.
- * @sci_phy: This is the struct scic_sds_phy object that has gone link up.
- *
- * This method is the ready waiting substate link up handler for the
- * struct scic_sds_port object. This methos will report the link up condition for
- * this port and will transition to the ready operational substate. none
- */
-static void scic_sds_port_ready_waiting_substate_link_up_handler(
- struct scic_sds_port *sci_port,
- struct scic_sds_phy *sci_phy)
-{
- /*
- * 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);
-}
-
/*
* This method is the ready waiting substate start io handler for the
* struct scic_sds_port object. The port object can not accept new requests so the
return SCI_FAILURE_INVALID_STATE;
}
-/**
- * scic_sds_port_ready_operational_substate_link_up_handler() -
- * @sci_port: This is the struct scic_sds_port object that which has a phy that has
- * gone link up.
- * @sci_phy: This is the struct scic_sds_phy object that has gone link up.
- *
- * This method is the ready operational substate link up handler for the
- * struct scic_sds_port object. This function notifies the SCI User that the phy has
- * gone link up. none
- */
-static void scic_sds_port_ready_operational_substate_link_up_handler(
- struct scic_sds_port *sci_port,
- struct scic_sds_phy *sci_phy)
-{
- scic_sds_port_general_link_up_handler(sci_port, sci_phy, true);
-}
-
-/**
- * scic_sds_port_ready_operational_substate_link_down_handler() -
- * @sci_port: This is the struct scic_sds_port object that which has a phy that has
- * gone link down.
- * @sci_phy: This is the struct scic_sds_phy object that has gone link down.
- *
- * This method is the ready operational substate link down handler for the
- * struct scic_sds_port object. This function notifies the SCI User that the phy has
- * gone link down and if this is the last phy in the port the port will change
- * state to the ready waiting substate. none
- */
-static void scic_sds_port_ready_operational_substate_link_down_handler(
- struct scic_sds_port *sci_port,
- struct scic_sds_phy *sci_phy)
-{
- scic_sds_port_deactivate_phy(sci_port, sci_phy, true);
-
- /*
- * If there are no active phys left in the port, then transition
- * the port to the WAITING state until such time as a phy goes
- * link up. */
- if (sci_port->active_phy_mask == 0)
- port_state_machine_change(sci_port,
- SCIC_SDS_PORT_READY_SUBSTATE_WAITING);
-}
-
/*
* This method is the ready operational substate start io handler for the
* struct scic_sds_port object. This function incremetns the outstanding request
return SCI_FAILURE_INVALID_STATE;
}
-static void scic_sds_port_default_link_up_handler(struct scic_sds_port *sci_port,
- struct scic_sds_phy *sci_phy)
-{
- default_port_handler(sci_port, __func__);
-}
-
-static void scic_sds_port_default_link_down_handler(struct scic_sds_port *sci_port,
- struct scic_sds_phy *sci_phy)
-{
- default_port_handler(sci_port, __func__);
-}
-
static enum sci_status scic_sds_port_default_start_io_handler(struct scic_sds_port *sci_port,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *sci_req)
return SCI_SUCCESS;
}
-/*
- * ****************************************************************************
- * * RESETTING STATE HANDLERS
- * **************************************************************************** */
-
-/*
- * This method will transition a failed port to its ready state. The port
- * failed because a hard reset request timed out but at some time later one or
- * more phys in the port became ready. enum sci_status SCI_SUCCESS
- */
-static void scic_sds_port_reset_state_link_up_handler(
- struct scic_sds_port *port,
- struct scic_sds_phy *phy)
-{
- /*
- * / @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 one that has gone link up and we
- * / want to make sure that phy being reset comes back. Consider the
- * / case where a reset is sent but before the hardware processes the
- * / reset it get a link up on the port because of a hot plug event.
- * / because of the reset request this phy will go link down almost
- * / immediately. */
-
- /*
- * In the resetting state we don't notify the user regarding
- * link up and link down notifications. */
- scic_sds_port_general_link_up_handler(port, phy, false);
-}
-
-/*
- * This method process link down notifications that occur during a port reset
- * operation. Link downs can occur during the reset operation. enum sci_status
- * SCI_SUCCESS
- */
-static void scic_sds_port_reset_state_link_down_handler(
- struct scic_sds_port *port,
- struct scic_sds_phy *phy)
-{
- /*
- * In the resetting state we don't notify the user regarding
- * link up and link down notifications. */
- scic_sds_port_deactivate_phy(port, phy, false);
-}
-
enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port)
{
struct scic_sds_controller *scic = sci_port->owning_controller;
*/
port_state_machine_change(sci_port,
SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING);
+ return SCI_SUCCESS;
+ default:
+ dev_warn(sciport_to_dev(sci_port),
+ "%s: in wrong state: %d\n", __func__, state);
+ return SCI_FAILURE_INVALID_STATE;
+ }
+}
+enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port,
+ struct scic_sds_phy *sci_phy)
+{
+ enum scic_sds_port_states state;
+
+ state = sci_port->state_machine.current_state_id;
+ switch (state) {
+ case SCIC_SDS_PORT_READY_SUBSTATE_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);
+ return SCI_SUCCESS;
+ case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
+ scic_sds_port_general_link_up_handler(sci_port, sci_phy, true);
+ return SCI_SUCCESS;
+ case SCI_BASE_PORT_STATE_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
+ * one that has gone link up and we want to make sure that
+ * phy being reset comes back. Consider the case where a
+ * reset is sent but before the hardware processes the reset it
+ * get a link up on the port because of a hot plug event.
+ * because of the reset request this phy will go link down
+ * almost immediately.
+ */
+
+ /* In the resetting state we don't notify the user regarding
+ * link up and link down notifications.
+ */
+ scic_sds_port_general_link_up_handler(sci_port, sci_phy, false);
+ return SCI_SUCCESS;
+ default:
+ dev_warn(sciport_to_dev(sci_port),
+ "%s: in wrong state: %d\n", __func__, state);
+ return SCI_FAILURE_INVALID_STATE;
+ }
+}
+
+enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port,
+ struct scic_sds_phy *sci_phy)
+{
+ enum scic_sds_port_states state;
+
+ state = sci_port->state_machine.current_state_id;
+ switch (state) {
+ case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
+ scic_sds_port_deactivate_phy(sci_port, sci_phy, true);
+
+ /* If there are no active phys left in the port, then
+ * transition the port to the WAITING state until such time
+ * as a phy goes link up
+ */
+ if (sci_port->active_phy_mask == 0)
+ port_state_machine_change(sci_port,
+ SCIC_SDS_PORT_READY_SUBSTATE_WAITING);
+ return SCI_SUCCESS;
+ case SCI_BASE_PORT_STATE_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);
return SCI_SUCCESS;
default:
dev_warn(sciport_to_dev(sci_port),
static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = {
[SCI_BASE_PORT_STATE_STOPPED] = {
- .link_up_handler = scic_sds_port_default_link_up_handler,
- .link_down_handler = scic_sds_port_default_link_down_handler,
.start_io_handler = scic_sds_port_default_start_io_handler,
.complete_io_handler = scic_sds_port_default_complete_io_handler
},
[SCI_BASE_PORT_STATE_STOPPING] = {
- .link_up_handler = scic_sds_port_default_link_up_handler,
- .link_down_handler = scic_sds_port_default_link_down_handler,
.start_io_handler = scic_sds_port_default_start_io_handler,
.complete_io_handler = scic_sds_port_stopping_state_complete_io_handler
},
[SCI_BASE_PORT_STATE_READY] = {
- .link_up_handler = scic_sds_port_default_link_up_handler,
- .link_down_handler = scic_sds_port_default_link_down_handler,
.start_io_handler = scic_sds_port_default_start_io_handler,
.complete_io_handler = scic_sds_port_general_complete_io_handler
},
[SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = {
- .link_up_handler = scic_sds_port_ready_waiting_substate_link_up_handler,
- .link_down_handler = scic_sds_port_default_link_down_handler,
.start_io_handler = scic_sds_port_ready_waiting_substate_start_io_handler,
.complete_io_handler = scic_sds_port_ready_substate_complete_io_handler,
},
[SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = {
- .link_up_handler = scic_sds_port_ready_operational_substate_link_up_handler,
- .link_down_handler = scic_sds_port_ready_operational_substate_link_down_handler,
.start_io_handler = scic_sds_port_ready_operational_substate_start_io_handler,
.complete_io_handler = scic_sds_port_ready_substate_complete_io_handler,
},
[SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = {
- .link_up_handler = scic_sds_port_default_link_up_handler,
- .link_down_handler = scic_sds_port_default_link_down_handler,
.start_io_handler = scic_sds_port_default_start_io_handler,
.complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler
},
[SCI_BASE_PORT_STATE_RESETTING] = {
- .link_up_handler = scic_sds_port_reset_state_link_up_handler,
- .link_down_handler = scic_sds_port_reset_state_link_down_handler,
.start_io_handler = scic_sds_port_default_start_io_handler,
.complete_io_handler = scic_sds_port_general_complete_io_handler
},
[SCI_BASE_PORT_STATE_FAILED] = {
- .link_up_handler = scic_sds_port_default_link_up_handler,
- .link_down_handler = scic_sds_port_default_link_down_handler,
.start_io_handler = scic_sds_port_default_start_io_handler,
.complete_io_handler = scic_sds_port_general_complete_io_handler
}
projects / mirror_ubuntu-disco-kernel.git / commitdiff