Re: [PATCH net-next v6 2/3] selftests/net: ncdevmem: add -b option to set rx-page-size on bind
From: Nikolay Aleksandrov <razor@blackwall.org>
Date: 2026-07-27 09:03:14
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On Fri, Jul 24, 2026 at 02:21:16PM -0700, Bobby Eshleman wrote:
From: Bobby Eshleman <redacted> Add -b <bytes> to request a non-default niov size via NETDEV_A_DMABUF_RX_PAGE_SIZE. When the value exceeds PAGE_SIZE, udmabuf_alloc() switches to an MFD_HUGETLB-backed memfd so each 2 MB hugepage produces one naturally-aligned sg entry. Signed-off-by: Bobby Eshleman <redacted> Acked-by: Stanislav Fomichev <sdf@fomichev.me> --- tools/testing/selftests/drivers/net/hw/ncdevmem.c | 36 +++++++++++++++++++++-- 1 file changed, 33 insertions(+), 3 deletions(-)
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>