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Differential D50242

mbuf: Allow clusters to fill an entire jumbo page.
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Authored by des on May 7 2025, 5:54 PM.
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Details

Reviewers
brooks
siderop1_netapp.com
kevans
Group Reviewers
Klara
Commits
rGcbc3efab49aa: mbuf: Allow clusters to fill an entire jumbo page.
rG271128b06986: mbuf: Allow clusters to fill an entire jumbo page.
Summary

The assumption that MCLBYTES == MJUMPAGESIZE can only happen if pages
are small is incorrect: it can also happen if MCLSHIFT is adjusted to
increase the size of clusters. Restore the ability to have clusters
fill a jumbo page, while still disallowing them from exceeding them.

MFC after: 1 week
Fixes: 840327e5ddf3, 9c3ad5ba932b
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.

Diff Detail

Repository
rG FreeBSD src repository
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Revision Contents
Changeset List

PathSize
sys/
conf/
3 lines
dev/
cxgbe/
4 lines
8 lines
kern/
4 lines
sys/
6 lines

Diff 155075

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sys/conf/NOTES

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sys/dev/cxgbe/adapter.h

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sys/dev/cxgbe/t4_sge.c

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sys/kern/kern_mbuf.c

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sys/sys/mbuf.h

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