isci: Move transport layer registers from port to phy
At init and RNC resume we need to touch every phy in a port to be sure we have initialized STP properties in the case where port_index != phy_index. Also add some missing __iomem annotations. Signed-off-by: Henryk Dembkowski <henryk.dembkowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
parent
06fdb32862
commit
246214667f
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@ -2919,6 +2919,7 @@ static enum sci_status scic_sds_controller_reset_state_initialize_handler(
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index++) {
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result = scic_sds_phy_initialize(
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&this_controller->phy_table[index],
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&this_controller->scu_registers->peg0.pe[index].tl,
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&this_controller->scu_registers->peg0.pe[index].ll
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);
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}
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@ -2932,7 +2933,6 @@ static enum sci_status scic_sds_controller_reset_state_initialize_handler(
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index++) {
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result = scic_sds_port_initialize(
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&this_controller->port_table[index],
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&this_controller->scu_registers->peg0.pe[index].tl,
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&this_controller->scu_registers->peg0.ptsg.port[index],
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&this_controller->scu_registers->peg0.ptsg.protocol_engine,
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&this_controller->scu_registers->peg0.viit[index]
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@ -62,6 +62,7 @@
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#include "scic_sds_phy.h"
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#include "scic_sds_phy_registers.h"
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#include "scic_sds_port.h"
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#include "scic_sds_remote_node_context.h"
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#include "scic_user_callback.h"
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#include "sci_environment.h"
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#include "sci_util.h"
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@ -83,6 +84,31 @@ enum sas_linkrate sci_phy_linkrate(struct scic_sds_phy *sci_phy)
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* * SCIC SDS PHY Internal Methods
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* ***************************************************************************** */
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/**
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* This method will initialize the phy transport layer registers
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* @this_phy:
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* @transport_layer_registers
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*
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* enum sci_status
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*/
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static enum sci_status scic_sds_phy_transport_layer_initialization(
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struct scic_sds_phy *this_phy,
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struct scu_transport_layer_registers __iomem *transport_layer_registers)
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{
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u32 tl_control;
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this_phy->transport_layer_registers = transport_layer_registers;
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SCU_STPTLDARNI_WRITE(this_phy, SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX);
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/* Hardware team recommends that we enable the STP prefetch for all transports */
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tl_control = SCU_TLCR_READ(this_phy);
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tl_control |= SCU_TLCR_GEN_BIT(STP_WRITE_DATA_PREFETCH);
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SCU_TLCR_WRITE(this_phy, tl_control);
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return SCI_SUCCESS;
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}
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/**
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* This method will initialize the phy link layer registers
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* @this_phy:
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@ -92,7 +118,7 @@ enum sas_linkrate sci_phy_linkrate(struct scic_sds_phy *sci_phy)
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*/
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static enum sci_status scic_sds_phy_link_layer_initialization(
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struct scic_sds_phy *this_phy,
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struct scu_link_layer_registers *link_layer_registers)
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struct scu_link_layer_registers __iomem *link_layer_registers)
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{
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u32 phy_configuration;
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struct sas_capabilities phy_capabilities;
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@ -361,7 +387,8 @@ void scic_sds_phy_set_port(
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*/
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enum sci_status scic_sds_phy_initialize(
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struct scic_sds_phy *sci_phy,
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struct scu_link_layer_registers *link_layer_registers)
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struct scu_transport_layer_registers __iomem *transport_layer_registers,
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struct scu_link_layer_registers __iomem *link_layer_registers)
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{
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/* Create the SIGNATURE FIS Timeout timer for this phy */
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sci_phy->sata_timeout_timer = scic_cb_timer_create(
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@ -370,6 +397,9 @@ enum sci_status scic_sds_phy_initialize(
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sci_phy
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);
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/* Perfrom the initialization of the TL hardware */
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scic_sds_phy_transport_layer_initialization(sci_phy, transport_layer_registers);
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/* Perofrm the initialization of the PE hardware */
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scic_sds_phy_link_layer_initialization(sci_phy, link_layer_registers);
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@ -384,6 +414,31 @@ enum sci_status scic_sds_phy_initialize(
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return SCI_SUCCESS;
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}
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/**
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* This method assigns the direct attached device ID for this phy.
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*
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* @this_phy The phy for which the direct attached device id is to
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* be assigned.
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* @device_id The direct attached device ID to assign to the phy.
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* This will either be the RNi for the device or an invalid RNi if there
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* is no current device assigned to the phy.
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*/
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void scic_sds_phy_setup_transport(
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struct scic_sds_phy *this_phy,
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u32 device_id)
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{
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u32 tl_control;
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SCU_STPTLDARNI_WRITE(this_phy, device_id);
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/*
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* The read should guarantee that the first write gets posted
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* before the next write
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*/
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tl_control = SCU_TLCR_READ(this_phy);
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tl_control |= SCU_TLCR_GEN_BIT(CLEAR_TCI_NCQ_MAPPING_TABLE);
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SCU_TLCR_WRITE(this_phy, tl_control);
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}
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/**
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*
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@ -398,10 +453,9 @@ void scic_sds_phy_suspend(
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u32 scu_sas_pcfg_value;
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scu_sas_pcfg_value = SCU_SAS_PCFG_READ(this_phy);
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scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(SUSPEND_PROTOCOL_ENGINE);
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SCU_SAS_PCFG_WRITE(this_phy, scu_sas_pcfg_value);
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scic_sds_phy_setup_transport(this_phy, SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX);
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}
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/**
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@ -247,10 +247,16 @@ struct scic_sds_phy {
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struct sci_base_state_machine starting_substate_machine;
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/**
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* This field is the pointer to the transport layer register for the SCU
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* hardware.
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*/
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struct scu_transport_layer_registers __iomem *transport_layer_registers;
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/**
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* This field points to the link layer register set within the SCU.
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*/
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struct scu_link_layer_registers *link_layer_registers;
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struct scu_link_layer_registers __iomem *link_layer_registers;
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};
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@ -383,7 +389,8 @@ void scic_sds_phy_set_port(
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enum sci_status scic_sds_phy_initialize(
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struct scic_sds_phy *this_phy,
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struct scu_link_layer_registers *link_layer_registers);
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struct scu_transport_layer_registers __iomem *transport_layer_registers,
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struct scu_link_layer_registers __iomem *link_layer_registers);
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enum sci_status scic_sds_phy_start(
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struct scic_sds_phy *this_phy);
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@ -402,6 +409,10 @@ void scic_sds_phy_suspend(
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void scic_sds_phy_resume(
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struct scic_sds_phy *this_phy);
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void scic_sds_phy_setup_transport(
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struct scic_sds_phy *this_phy,
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u32 device_id);
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/* --------------------------------------------------------------------------- */
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enum sci_status scic_sds_phy_event_handler(
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@ -65,6 +65,59 @@
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#include "scic_sds_controller.h"
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/* **************************************************************************
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* * SCU TRANSPORT LAYER REGISTER OPERATIONS
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* ************************************************************************** */
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/**
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* Macro to read the transport layer register associated with this phy
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* object.
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*/
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#define scu_transport_layer_read(phy, reg) \
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scu_register_read( \
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scic_sds_phy_get_controller(phy), \
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(phy)->transport_layer_registers->reg \
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)
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/**
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* Macro to write the transport layer register associated with this phy
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* object.
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*/
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#define scu_transport_layer_write(phy, reg, value) \
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scu_register_write( \
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scic_sds_phy_get_controller(phy), \
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(phy)->transport_layer_registers->reg, \
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(value) \
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)
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/* **************************************************************************
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* * Transport Layer registers controlled by the phy object
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* ************************************************************************** */
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/* This macro reads the Transport layer control register */
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#define SCU_TLCR_READ(phy) \
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scu_transport_layer_read(phy, control)
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/* This macro writes the Transport layer control register */
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#define SCU_TLCR_WRITE(phy, value) \
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scu_transport_layer_write(phy, control, value)
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/* This macro reads the Transport layer address translation register */
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#define SCU_TLADTR_READ(phy) \
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scu_transport_layer_read(phy, address_translation)
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/* This macro writes the Transport layer address translation register */
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#define SCU_TLADTR_WRITE(phy) \
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scu_transport_layer_write(phy, address_translation, value)
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/* This macro writes the STP Transport Layer Direct Attached RNi register */
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#define SCU_STPTLDARNI_WRITE(phy, index) \
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scu_transport_layer_write(phy, stp_rni, index)
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/* This macro reads the STP Transport Layer Direct Attached RNi register */
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#define SCU_STPTLDARNI_READ(phy) \
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scu_transport_layer_read(phy, stp_rni)
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/*
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* *****************************************************************************
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* * SCU LINK LAYER REGISTER OPERATIONS
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@ -531,7 +531,6 @@ void scic_sds_port_construct(
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this_port->timer_handle = NULL;
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this_port->transport_layer_registers = NULL;
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this_port->port_task_scheduler_registers = NULL;
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for (index = 0; index < SCI_MAX_PHYS; index++) {
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@ -553,30 +552,14 @@ void scic_sds_port_construct(
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*/
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enum sci_status scic_sds_port_initialize(
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struct scic_sds_port *this_port,
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void *transport_layer_registers,
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void *port_task_scheduler_registers,
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void *port_configuration_regsiter,
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void *viit_registers)
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void __iomem *port_task_scheduler_registers,
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void __iomem *port_configuration_regsiter,
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void __iomem *viit_registers)
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{
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u32 tl_control;
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this_port->transport_layer_registers = transport_layer_registers;
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this_port->port_task_scheduler_registers = port_task_scheduler_registers;
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this_port->port_pe_configuration_register = port_configuration_regsiter;
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this_port->viit_registers = viit_registers;
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scic_sds_port_set_direct_attached_device_id(
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this_port,
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SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX
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);
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/*
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* Hardware team recommends that we enable the STP prefetch
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* for all ports */
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tl_control = SCU_TLCR_READ(this_port);
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tl_control |= SCU_TLCR_GEN_BIT(STP_WRITE_DATA_PREFETCH);
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SCU_TLCR_WRITE(this_port, tl_control);
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/*
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* If this is not the dummy port make the assignment of
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* the timer and start the state machine */
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@ -693,29 +676,25 @@ enum sci_status scic_port_hard_reset(
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}
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/**
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*
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* @this_port: The port for which the direct attached device id is to be
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* assigned.
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*
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* This method assigns the direct attached device ID for this port.
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*
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* @param[in] this_port The port for which the direct attached device id is to
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* be assigned.
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* @param[in] device_id The direct attached device ID to assign to the port.
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* This will be the RNi for the device
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*/
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void scic_sds_port_set_direct_attached_device_id(
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void scic_sds_port_setup_transports(
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struct scic_sds_port *this_port,
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u32 device_id)
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{
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u32 tl_control;
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u8 index;
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SCU_STPTLDARNI_WRITE(this_port, device_id);
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/*
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* The read should guarntee that the first write gets posted
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* before the next write */
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tl_control = SCU_TLCR_READ(this_port);
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tl_control |= SCU_TLCR_GEN_BIT(CLEAR_TCI_NCQ_MAPPING_TABLE);
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SCU_TLCR_WRITE(this_port, tl_control);
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for (index = 0; index < SCI_MAX_PHYS; index++) {
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if (this_port->active_phy_mask & (1 << index))
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scic_sds_phy_setup_transport(this_port->phy_table[index], device_id);
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}
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}
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/**
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*
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* @this_port: This is the port on which the phy should be enabled.
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@ -1550,16 +1529,12 @@ static void scic_sds_port_suspend_port_task_scheduler(
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struct scic_sds_port *this_port)
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{
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u32 pts_control_value;
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u32 tl_control_value;
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pts_control_value = scu_port_task_scheduler_read(this_port, control);
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tl_control_value = scu_transport_layer_read(this_port, control);
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pts_control_value |= SCU_PTSxCR_GEN_BIT(SUSPEND);
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tl_control_value |= SCU_TLCR_GEN_BIT(CLEAR_TCI_NCQ_MAPPING_TABLE);
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scu_port_task_scheduler_write(this_port, control, pts_control_value);
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scu_transport_layer_write(this_port, control, tl_control_value);
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}
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/**
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@ -2624,11 +2599,6 @@ static void scic_sds_port_resetting_state_enter(
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scic_sds_port_set_base_state_handlers(
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this_port, SCI_BASE_PORT_STATE_RESETTING
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);
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scic_sds_port_set_direct_attached_device_id(
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this_port,
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SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX
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);
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}
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/**
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@ -180,17 +180,12 @@ struct scic_sds_port {
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struct sci_base_state_machine ready_substate_machine;
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/* / Memory mapped hardware register space */
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/**
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* This field is the pointer to the transport layer register for the SCU
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* hardware.
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*/
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struct scu_transport_layer_registers *transport_layer_registers;
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/**
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* This field is the pointer to the port task scheduler registers for the SCU
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* hardware.
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*/
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struct scu_port_task_scheduler_registers *port_task_scheduler_registers;
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struct scu_port_task_scheduler_registers __iomem *port_task_scheduler_registers;
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/**
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* This field is identical for all port objects and points to the port task
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@ -202,7 +197,7 @@ struct scic_sds_port {
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/**
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* This field is the VIIT register space for ths port object.
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*/
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struct scu_viit_entry *viit_registers;
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struct scu_viit_entry __iomem *viit_registers;
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};
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@ -345,10 +340,9 @@ void scic_sds_port_construct(
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enum sci_status scic_sds_port_initialize(
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struct scic_sds_port *this_port,
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void *transport_layer_registers,
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void *port_task_scheduler_registers,
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void *port_configuration_regsiter,
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void *viit_registers);
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void __iomem *port_task_scheduler_registers,
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void __iomem *port_configuration_regsiter,
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void __iomem *viit_registers);
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/* --------------------------------------------------------------------------- */
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@ -360,7 +354,7 @@ enum sci_status scic_sds_port_remove_phy(
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struct scic_sds_port *this_port,
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struct scic_sds_phy *the_phy);
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void scic_sds_port_set_direct_attached_device_id(
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void scic_sds_port_setup_transports(
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struct scic_sds_port *this_port,
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u32 device_id);
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@ -63,29 +63,6 @@
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*
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*/
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/**
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* scu_transport_layer_read() -
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*
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* Macro to read the transport layer register associated with this port object.
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*/
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#define scu_transport_layer_read(port, reg) \
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scu_register_read(\
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scic_sds_port_get_controller(port), \
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(port)->transport_layer_registers->reg \
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)
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/**
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* scu_transport_layer_write() -
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*
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* Macro to write the transport layer register associated with this port object.
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*/
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#define scu_transport_layer_write(port, reg, value) \
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scu_register_write(\
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scic_sds_port_get_controller(port), \
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(port)->transport_layer_registers->reg, \
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(value) \
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)
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/**
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* scu_port_task_scheduler_read() -
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*
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@ -118,59 +95,6 @@
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(value) \
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)
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/*
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* ****************************************************************************
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* * Transport Layer registers controlled by the port object
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* **************************************************************************** */
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/**
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* SCU_TLCR_READ() -
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*
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* This macro reads the Transport layer control register
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*/
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#define SCU_TLCR_READ(port) \
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scu_transport_layer_read(port, control)
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/**
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* SCU_TLCR_WRITE() -
|
||||
*
|
||||
* This macro writes the Transport layer control register
|
||||
*/
|
||||
#define SCU_TLCR_WRITE(port, value) \
|
||||
scu_transport_layer_write(port, control, value)
|
||||
|
||||
/**
|
||||
* SCU_TLADTR_READ() -
|
||||
*
|
||||
* This macro reads the Transport layer address translation register
|
||||
*/
|
||||
#define SCU_TLADTR_READ(port) \
|
||||
scu_transport_layer_read(port, address_translation)
|
||||
|
||||
/**
|
||||
* SCU_TLADTR_WRITE() -
|
||||
*
|
||||
* This macro writes the Transport layer address translation register
|
||||
*/
|
||||
#define SCU_TLADTR_WRITE(port) \
|
||||
scu_transport_layer_write(port, address_translation, value)
|
||||
|
||||
/**
|
||||
* SCU_STPTLDARNI_WRITE() -
|
||||
*
|
||||
* This macro writes the STP Transport Layer Direct Attached RNi register.
|
||||
*/
|
||||
#define SCU_STPTLDARNI_WRITE(port, index) \
|
||||
scu_transport_layer_write(port, stp_rni, index)
|
||||
|
||||
/**
|
||||
* SCU_STPTLDARNI_READ() -
|
||||
*
|
||||
* This macro reads the STP Transport Layer Direct Attached RNi register.
|
||||
*/
|
||||
#define SCU_STPTLDARNI_READ(port) \
|
||||
scu_transport_layer_read(port, stp_rni)
|
||||
|
||||
/*
|
||||
* ****************************************************************************
|
||||
* * Port Task Scheduler registers controlled by the port object
|
||||
|
|
|
@ -1210,11 +1210,6 @@ static enum sci_status scic_sds_remote_device_stopped_state_destruct_handler(
|
|||
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX
|
||||
);
|
||||
|
||||
scic_sds_port_set_direct_attached_device_id(
|
||||
this_device->owning_port,
|
||||
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX
|
||||
);
|
||||
|
||||
sci_base_state_machine_change_state(
|
||||
scic_sds_remote_device_get_base_state_machine(this_device),
|
||||
SCI_BASE_REMOTE_DEVICE_STATE_FINAL
|
||||
|
@ -2018,11 +2013,6 @@ static void scic_sds_remote_device_resetting_state_exit(
|
|||
{
|
||||
struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)object;
|
||||
|
||||
scic_sds_port_set_direct_attached_device_id(
|
||||
scic_sds_remote_device_get_port(this_device),
|
||||
this_device->rnc->remote_node_index
|
||||
);
|
||||
|
||||
scic_sds_remote_node_context_resume(this_device->rnc, NULL, NULL);
|
||||
}
|
||||
|
||||
|
|
|
@ -689,11 +689,6 @@ static enum sci_status scic_sds_remote_node_context_tx_suspended_state_resume_ha
|
|||
} else if (protocols.u.bits.attached_stp_target == 1) {
|
||||
if (this_rnc->device->is_direct_attached) {
|
||||
/* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */
|
||||
scic_sds_port_set_direct_attached_device_id(
|
||||
this_rnc->device->owning_port,
|
||||
this_rnc->remote_node_index
|
||||
);
|
||||
|
||||
sci_base_state_machine_change_state(
|
||||
&this_rnc->state_machine,
|
||||
SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE
|
||||
|
@ -986,7 +981,7 @@ static void scic_sds_remote_node_context_validate_context_buffer(
|
|||
);
|
||||
|
||||
if (this_rnc->device->is_direct_attached) {
|
||||
scic_sds_port_set_direct_attached_device_id(
|
||||
scic_sds_port_setup_transports(
|
||||
this_rnc->device->owning_port,
|
||||
this_rnc->remote_node_index
|
||||
);
|
||||
|
@ -1016,13 +1011,6 @@ static void scic_sds_remote_node_context_invalidate_context_buffer(
|
|||
this_rnc->device,
|
||||
SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE
|
||||
);
|
||||
|
||||
if (this_rnc->device->is_direct_attached) {
|
||||
scic_sds_port_set_direct_attached_device_id(
|
||||
this_rnc->device->owning_port,
|
||||
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -1112,6 +1100,7 @@ static void scic_sds_remote_node_context_resuming_state_enter(
|
|||
struct sci_base_object *object)
|
||||
{
|
||||
struct scic_sds_remote_node_context *rnc;
|
||||
struct smp_discover_response_protocols protocols;
|
||||
|
||||
rnc = (struct scic_sds_remote_node_context *)object;
|
||||
|
||||
|
@ -1121,6 +1110,20 @@ static void scic_sds_remote_node_context_resuming_state_enter(
|
|||
SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE
|
||||
);
|
||||
|
||||
/*
|
||||
* For direct attached SATA devices we need to clear the TLCR
|
||||
* NCQ to TCi tag mapping on the phy and in cases where we
|
||||
* resume because of a target reset we also need to update
|
||||
* the STPTLDARNI register with the RNi of the device
|
||||
*/
|
||||
scic_remote_device_get_protocols(rnc->device, &protocols);
|
||||
|
||||
if ((protocols.u.bits.attached_stp_target == 1) &&
|
||||
(rnc->device->is_direct_attached)) {
|
||||
scic_sds_port_setup_transports(
|
||||
rnc->device->owning_port, rnc->remote_node_index);
|
||||
}
|
||||
|
||||
scic_sds_remote_device_post_request(
|
||||
rnc->device,
|
||||
SCU_CONTEXT_COMMAND_POST_RNC_RESUME
|
||||
|
|
Loading…
Reference in a new issue