62030781cd
to add actions that run when a TCP frame is sent or received on a TCP session in the ESTABLISHED state. In the base tree, this functionality is only used for the h_ertt module, which is used by the cc_cdg, cc_chd, cc_hd, and cc_vegas congestion control modules. Presently, we incur overhead to check for hooks each time a TCP frame is sent or received on an ESTABLISHED TCP session. This change adds a new compile-time option (TCP_HHOOK) to determine whether to include the hhook(9) framework for TCP. To retain backwards compatibility, I added the TCP_HHOOK option to every configuration file that already defined "options INET". (Therefore, this patch introduces no functional change. In order to see a functional difference, you need to compile a custom kernel without the TCP_HHOOK option.) This change will allow users to easily exclude this functionality from their kernel, should they wish to do so. Note that any users who use a custom kernel configuration and use one of the congestion control modules listed above will need to add the TCP_HHOOK option to their kernel configuration. Reviewed by: rrs, lstewart, hiren (previous version), sjg (makefiles only) Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D8185
79 lines
3.3 KiB
Plaintext
79 lines
3.3 KiB
Plaintext
# Standard kernel config items for all ARMv6/v7 systems.
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#
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# $FreeBSD$
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options HZ=1000
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options ARM_L2_PIPT # Only L2 PIPT is supported
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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 TCP_HHOOK # hhook(9) framework for TCP
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options IPSEC # IP (v4/v6) security
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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 NFSCL # Network Filesystem Client
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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 TMPFS # Efficient memory filesystem
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options GEOM_PART_GPT # GUID Partition Tables
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options GEOM_PART_BSD # BSD partition scheme
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options GEOM_PART_MBR # MBR partition scheme
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options GEOM_LABEL # Provides labelization
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options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
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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 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 FREEBSD_BOOT_LOADER # Process metadata passed from loader(8)
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options VFP # Enable floating point hardware support
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options COMPAT_FREEBSD10 # Compatible with FreeBSD10
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# DTrace support
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options KDTRACE_HOOKS # Kernel DTrace hooks
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options DDB_CTF # all architectures - kernel ELF linker loads CTF data
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makeoptions WITH_CTF=1
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# Debugging support. Always need this:
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makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
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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 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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options ALT_BREAK_TO_DEBUGGER # Enter debugger on keyboard escape sequence
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options USB_DEBUG # Enable usb debug support code
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# Optional extras, never enabled by default:
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#options BOOTVERBOSE
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#options DEBUG # May result in extreme spewage
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#options KTR
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#options KTR_COMPILE=KTR_ALL
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#options KTR_ENTRIES=16384
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#options KTR_MASK=(KTR_SPARE2)
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#options KTR_VERBOSE=0
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#options USB_REQ_DEBUG
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#options USB_VERBOSE
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#options VERBOSE_SYSINIT # Enable verbose sysinit messages
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