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authorEli Cohen <eli@mellanox.co.il>2009-05-28 01:38:34 +0400
committerRoland Dreier <rolandd@cisco.com>2009-05-28 01:38:34 +0400
commitab6bf42e2339580b5d87746d0ff4da4b1578b03e (patch)
tree670b1e1168e2a89ad782879154c9cdc9785b1c4c /include/linux/mlx4
parent210af919c949a7d6bd330916ef376cec2907d81e (diff)
downloadlinux-ab6bf42e2339580b5d87746d0ff4da4b1578b03e.tar.xz
mlx4_core: Add module parameter for number of MTTs per segment
The current MTT allocator uses kmalloc() to allocate a buffer for its buddy allocator, and thus is limited in the amount of MTT segments that it can control. As a result, the size of memory that can be registered is limited too. This patch uses a module parameter to control the number of MTT entries that each segment represents, allowing more memory to be registered with the same number of segments. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'include/linux/mlx4')
-rw-r--r--include/linux/mlx4/device.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 3aff8a6a389e..ce7cc6c7bcbb 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -210,6 +210,7 @@ struct mlx4_caps {
int num_comp_vectors;
int num_mpts;
int num_mtt_segs;
+ int mtts_per_seg;
int fmr_reserved_mtts;
int reserved_mtts;
int reserved_mrws;