bd79708dbf
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
61 lines
1.0 KiB
Plaintext
61 lines
1.0 KiB
Plaintext
#
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# $FreeBSD$
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#
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hints "SWARM.hints"
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include "../sibyte/std.sibyte"
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options CFE
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options CFE_CONSOLE
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options CFE_ENV
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options ALT_BREAK_TO_DEBUGGER
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cpu CPU_SB1
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makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
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makeoptions MODULES_OVERRIDE=""
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options DDB
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options KDB
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options SCHED_4BSD #4BSD scheduler
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options INET #InterNETworking
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options TCP_HHOOK # hhook(9) framework for TCP
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options NFSCL #Network Filesystem Client
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options NFS_ROOT #NFS usable as /, requires NFSCL
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options PSEUDOFS #Pseudo-filesystem framework
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options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
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# Debugging for use in -current
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#options DEADLKRES
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options INVARIANTS
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options INVARIANT_SUPPORT
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options WITNESS
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options FFS #Fast filesystem
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options KTRACE
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device pci
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device miibus
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device bge
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device loop
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device ether
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device md
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device random
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options USB_DEBUG
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device usb
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device ohci
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device uhci
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device ehci
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device umass
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device scbus
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device cd
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device da
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device pass
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device ata
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