Solaris Source Insight: PCI bus driver moduls - pcie misc/module

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Continue with other PCI related modules.

[root@blu-nhm-ep:~]modinfo | grep PCI

13 fffffffffbbd99e8 b278 - 1 pci_autoconfig (PCI BIOS interface)

36 fffffffff78a2000 9520 183 1 npe (Host to PCIe nexus driver)

37 fffffffff78ab000 5878 - 1 pcihp (PCI nexus hotplug support)

39 fffffffff78b1000 8448 - 1 pcie (PCIE: PCI framework)

88 fffffffff7c4e000 4ee0 184 1 pcieb (PCIe to PCI nexus driver)

89 fffffffff7a70000 1ae0 84 1 pci_pci (PCI to PCI bridge nexus driver)

We have completed pci_autoconfig, npe. Let's go ahead with pcie. The pcie module are compiled from several source files. You can guess their purpose from the file name.

[allen@blu-devl:uts]find . -name Makefile.files | xargs grep pcie

./intel/Makefile.files:PCIEB_OBJS += pcieb_x86.o

./intel/Makefile.files:PCI_AUTOCONFIG_OBJS += pci_autoconfig.o pci_boot.o pcie_nvidia.o \

./common/Makefile.files:PCIE_MISC_OBJS += pcie.o pcie_fault.o pcie_hp.o pciehpc.o pcishpc.o pcie_pwr.o

./common/Makefile.files:PCIEB_OBJS += pcieb.o

./sparc/Makefile.files:PCIE_MISC_OBJS += pcie_sparc.o

./sparc/Makefile.files:PCIEB_OBJS += pcieb_sparc.o

./i86pc/Makefile.files:PCIE_MISC_OBJS += pcie_acpi.o pciehpc_acpi.o pcie_x86.o

./i86xpv/Makefile.files:PCIE_MISC_OBJS += pcie_acpi.o pciehpc_acpi.o pcie_x86.o

[allen@blu-xvm-osol:uts]find . -name Makefile\* | xargs grep PCIE_MISC_OBJS

./i86pc/pcie/Makefile:OBJECTS = $(PCIE_MISC_OBJS:%=$(OBJS_DIR)/%) \

./i86pc/pcie/Makefile:LINTS = $(PCIE_MISC_OBJS:%.o=$(LINTS_DIR)/%.ln) \

./i86pc/Makefile.files:PCIE_MISC_OBJS += pcie_acpi.o pciehpc_acpi.o pcie_x86.o

./common/Makefile.files:PCIE_MISC_OBJS += pcie.o pcie_fault.o pcie_hp.o pciehpc.o pcishpc.o pcie_pwr.o

./sparc/pcie/Makefile:OBJECTS = $(PCIE_MISC_OBJS:%=$(OBJS_DIR)/%) \

./sparc/pcie/Makefile:LINTS = $(PCIE_MISC_OBJS:%.o=$(LINTS_DIR)/%.ln) \

./sparc/Makefile.files:PCIE_MISC_OBJS += pcie_sparc.o

./i86xpv/pcie/Makefile:OBJECTS = $(PCIE_MISC_OBJS:%=$(OBJS_DIR)/%) \

./i86xpv/pcie/Makefile:LINTS = $(PCIE_MISC_OBJS:%.o=$(LINTS_DIR)/%.ln) \

./i86xpv/Makefile.files:PCIE_MISC_OBJS += pcie_acpi.o pciehpc_acpi.o pcie_x86.o

pcie is a misc module, it provides interface to manipulate a pcie framework. There is no devinfo node related to this module, but you can find many reference call in other driver modules, such as npe we have just read.

153 /*

154 * modload support

155 */

156

157 static struct modlmisc modlmisc|= {

158 |_______&mod_miscops,|__/* Type|of module */

159 |_______"PCI Express Framework Module"

160 };

161

162 static struct modlinkage modlinkage = {

163 |_______MODREV_1,

164 |_______(void|__*)&modlmisc,

165 |_______NULL

166 };

All the related files are stored under usr/src/uts/common/io/pciex/ and intel/io/pciex/.

[allen@blu-devl:uts]find ./common/io/pciex/

./common/io/pciex/

./common/io/pciex/pcie.c

./common/io/pciex/hotplug

./common/io/pciex/hotplug/pcishpc.c

./common/io/pciex/hotplug/pcie_hp.c

./common/io/pciex/hotplug/pciehpc.c

./common/io/pciex/pcie_fault.c

./common/io/pciex/pcieb.h

./common/io/pciex/pcie_pwr.c

./common/io/pciex/pcieb.conf

./common/io/pciex/pcieb.c

[allen@blu-xvm-osol:uts]find intel/io/pciex/ -name \*.c

intel/io/pciex/pcie_nvidia.c (part of pci_autoconfig)

intel/io/pciex/hotplug/pciehpc_acpi.c

intel/io/pciex/pcieb_x86.c

intel/io/pciex/pcie_acpi.c

Objcet File	Function
pcie.o	The module definition, pcie main framework
pcie_fault.o	PCI/PCIe IO fabric errors handling
pcie_hp.o	Common hotplug code that is used by Standard PCIe and PCI HotPlug Controller code.
pciehpc.o	Standard PCI Express HotPlug functionality that is compatible with the PCI Express ver 1.1 specification.
pcishpc.o	PCI HotPlug functionality that is compatible with the PCI SHPC specification 1.x.
pci_pwr.o	The power management functionality for pci express switch and pci express-to- pci/pci-x bridge.
pcie_acpi.o	PCIe ACPI interfaces.
pciehpc_acpi.o	ACPI interface related functions used in PCIEHPC driver module.
pcie_x86.o	Platform related PCIe functions.

I won't dive into each object.