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Differential D54178

netmap: Let memory allocator parameters be settable via loader.conf
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Authored by markj on Dec 11 2025, 4:37 PM.
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rG284f29f84ac8: netmap: Let memory allocator parameters be settable via loader.conf
rG13b9f78e33c9: netmap: Let memory allocator parameters be settable via loader.conf
rGc694122f3cfb: netmap: Let memory allocator parameters be settable via loader.conf
Summary

This is useful when dev.netmap.port_numa_affinity is set to 1. When
interfaces attach, they get a memory allocator that is copied from
nm_mem. Parameters in nm_mem can be set using sysctls, but this happens
after their values are copied.

To work around this, we can make it possible to set these memory
parameters as tunables.

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rG FreeBSD src repository
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Build 66067: arc lint + arc unit

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sys/
dev/
netmap/
34 lines

Diff 167872

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sys/dev/netmap/netmap_mem2.c

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