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
63 lines
1.4 KiB
Plaintext
63 lines
1.4 KiB
Plaintext
#
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# BERI_TEMPLATE -- a template kernel configuration for the SRI/Cambridge
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# "BERI" (Bluespec Extensible RISC Implementation) FPGA soft core CPU. This
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# kernel configuration file will be included by other board-specific files,
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# and so contains only BERI features common across all board targets.
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#
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# $FreeBSD$
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#
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ident BERI_TEMPLATE
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machine mips mips64
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cpu CPU_BERI
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options HZ=200
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makeoptions ARCH_FLAGS="-march=mips64 -mabi=64"
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makeoptions KERNLOADADDR=0xffffffff80100000
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include "../beri/std.beri"
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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 ALT_BREAK_TO_DEBUGGER
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options KTRACE
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options CAPABILITY_MODE
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options CAPABILITIES
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options SCHED_ULE
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options FFS #Berkeley Fast Filesystem
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options INET
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options INET6
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options TCP_HHOOK # hhook(9) framework for TCP
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options KGSSAPI
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options NFSCL
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options NFSLOCKD
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options NFS_ROOT
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# Debugging for use in -current
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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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device crypto
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device cryptodev
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device ether
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device geom_map
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device loop
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device md
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device random
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device snp
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