82cb5c3b5b
PCI-express HotPlug support is implemented via bits in the slot registers of the PCI-express capability of the downstream port along with an interrupt that triggers when bits in the slot status register change. This is implemented for FreeBSD by adding HotPlug support to the PCI-PCI bridge driver which attaches to the virtual PCI-PCI bridges representing downstream ports on HotPlug slots. The PCI-PCI bridge driver registers an interrupt handler to receive HotPlug events. It also uses the slot registers to determine the current HotPlug state and drive an internal HotPlug state machine. For simplicty of implementation, the PCI-PCI bridge device detaches and deletes the child PCI device when a card is removed from a slot and creates and attaches a PCI child device when a card is inserted into the slot. The PCI-PCI bridge driver provides a bus_child_present which claims that child devices are present on HotPlug-capable slots only when a card is inserted. Rather than requiring a timeout in the RC for config accesses to not-present children, the pcib_read/write_config methods fail all requests when a card is not present (or not yet ready). These changes include support for various optional HotPlug capabilities such as a power controller, mechanical latch, electro-mechanical interlock, indicators, and an attention button. It also includes support for devices which require waiting for command completion events before initiating a subsequent HotPlug command. However, it has only been tested on ExpressCard systems which support surprise removal and have none of these optional capabilities. PCI-express HotPlug support is conditional on the PCI_HP option which is enabled by default on arm64, x86, and powerpc. Reviewed by: adrian, imp, vangyzen (older versions) Relnotes: yes Differential Revision: https://reviews.freebsd.org/D6136
161 lines
5.6 KiB
Plaintext
161 lines
5.6 KiB
Plaintext
#
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# GENERIC -- Generic kernel configuration file for FreeBSD/arm64
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#
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# For more information on this file, please read the config(5) manual page,
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# and/or the handbook section on Kernel Configuration Files:
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#
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# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
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#
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# The handbook is also available locally in /usr/share/doc/handbook
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# if you've installed the doc distribution, otherwise always see the
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# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
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# latest information.
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#
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# An exhaustive list of options and more detailed explanations of the
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# device lines is also present in the ../../conf/NOTES and NOTES files.
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# If you are in doubt as to the purpose or necessity of a line, check first
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# in NOTES.
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#
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# $FreeBSD$
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cpu ARM64
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ident GENERIC
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makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
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makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support
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options SCHED_ULE # ULE scheduler
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options PREEMPTION # Enable kernel thread preemption
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options INET # InterNETworking
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options INET6 # IPv6 communications protocols
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options IPSEC # IP (v4/v6) security
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options TCP_OFFLOAD # TCP offload
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options SCTP # Stream Control Transmission Protocol
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options FFS # Berkeley Fast Filesystem
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options SOFTUPDATES # Enable FFS soft updates support
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options UFS_ACL # Support for access control lists
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options UFS_DIRHASH # Improve performance on big directories
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options UFS_GJOURNAL # Enable gjournal-based UFS journaling
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options QUOTA # Enable disk quotas for UFS
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options MD_ROOT # MD is a potential root device
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options NFSCL # Network Filesystem Client
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options NFSD # Network Filesystem Server
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options NFSLOCKD # Network Lock Manager
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options NFS_ROOT # NFS usable as /, requires NFSCL
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options MSDOSFS # MSDOS Filesystem
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options CD9660 # ISO 9660 Filesystem
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options PROCFS # Process filesystem (requires PSEUDOFS)
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options PSEUDOFS # Pseudo-filesystem framework
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options GEOM_PART_GPT # GUID Partition Tables.
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options GEOM_RAID # Soft RAID functionality.
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options GEOM_LABEL # Provides labelization
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options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
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options KTRACE # ktrace(1) support
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options STACK # stack(9) support
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options SYSVSHM # SYSV-style shared memory
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options SYSVMSG # SYSV-style message queues
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options SYSVSEM # SYSV-style semaphores
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options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
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options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
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options KBD_INSTALL_CDEV # install a CDEV entry in /dev
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options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
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options AUDIT # Security event auditing
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options CAPABILITY_MODE # Capsicum capability mode
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options CAPABILITIES # Capsicum capabilities
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options MAC # TrustedBSD MAC Framework
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options KDTRACE_FRAME # Ensure frames are compiled in
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options KDTRACE_HOOKS # Kernel DTrace hooks
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options VFP # Floating-point support
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options RACCT # Resource accounting framework
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options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
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options RCTL # Resource limits
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options SMP
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# Debugging support. Always need this:
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options KDB # Enable kernel debugger support.
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options KDB_TRACE # Print a stack trace for a panic.
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# For full debugger support use (turn off in stable branch):
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options DDB # Support DDB.
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#options GDB # Support remote GDB.
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options DEADLKRES # Enable the deadlock resolver
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options INVARIANTS # Enable calls of extra sanity checking
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options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS
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options WITNESS # Enable checks to detect deadlocks and cycles
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options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
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options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones
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# SoC support
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options SOC_CAVM_THUNDERX
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options SOC_HISI_HI6220
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# VirtIO support
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device virtio
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device virtio_mmio
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device virtio_blk
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device vtnet
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# Bus drivers
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device pci
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options PCI_HP # PCI-Express native HotPlug
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options PCI_IOV # PCI SR-IOV support
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# Ethernet NICs
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device mii
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device miibus # MII bus support
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device em # Intel PRO/1000 Gigabit Ethernet Family
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device igb # Intel PRO/1000 PCIE Server Gigabit Family
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device ix # Intel 10Gb Ethernet Family
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device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
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device vnic # Cavium ThunderX NIC
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# Block devices
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device ahci
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device scbus
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device da
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# ATA/SCSI peripherals
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device pass # Passthrough device (direct ATA/SCSI access)
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# MMC/SD/SDIO Card slot support
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device mmc # mmc/sd bus
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device mmcsd # mmc/sd flash cards
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device dwmmc
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# Serial (COM) ports
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device uart # Generic UART driver
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device uart_ns8250 # ns8250-type UART driver
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device pl011
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# USB support
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options USB_DEBUG # enable debug msgs
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device dwcotg # DWC OTG controller
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device xhci # XHCI PCI->USB interface (USB 3.0)
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device usb # USB Bus (required)
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device ukbd # Keyboard
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device umass # Disks/Mass storage - Requires scbus and da
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# Pseudo devices.
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device loop # Network loopback
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device random # Entropy device
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device ether # Ethernet support
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device vlan # 802.1Q VLAN support
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device tun # Packet tunnel.
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device md # Memory "disks"
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device gif # IPv6 and IPv4 tunneling
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device firmware # firmware assist module
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device psci # Support for ARM PSCI
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# The `bpf' device enables the Berkeley Packet Filter.
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# Be aware of the administrative consequences of enabling this!
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# Note that 'bpf' is required for DHCP.
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device bpf # Berkeley packet filter
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# Chip-specific errata
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options THUNDERX_PASS_1_1_ERRATA
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options FDT
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#device acpi
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# The crypto framework is required by IPSEC
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device crypto # Required by IPSEC
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