net: devmem: batch net_iov allocations into the page_pool cache

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Rename net_devmem_alloc_dmabuf() into net_devmem_alloc_dmabuf_bulk() and
make it refill page pool with up to PP_ALLOC_CACHE_REFILL NIOVs,
similar to io_pp_zc_alloc_netmems(). That should amortize recently
introduced freelist_lock.

Reviewed-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260917181116.3319017-4-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Stanislav Fomichev 2026-09-17 11:11:16 -07:00 • committed by Jakub Kicinski

parent 13648ba787

commit 050bacb138

2 changed files with 36 additions and 29 deletions

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57

net/core/devmem.c

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8

net/core/devmem.h

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