IB/mlx4: Use pgprot_writecombine() for BlueFlame pages

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The PAT work on x86 has finally made pgprot_writecombine() a usable API
for modular drivers.  As the comment indicates, this is exactly what we
want to use in mlx4_ib to map BlueFlame pages up to userspace, since
using WC for these pages improves small message latency significantly.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

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Roland Dreier 2009-03-30 08:31:05 -07:00 • committed by Roland Dreier

parent 5d80f8e5a9

commit e1d60ec669

1 changed files with 1 additions and 2 deletions

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drivers/infiniband/hw/mlx4/main.c

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