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authorEli Cohen2012-02-09 18:10:06 +0200
committerRoland Dreier2012-02-26 01:43:37 -0800
commita5bbe892da9441835cb6fece26d9bbd95fc820be (patch)
tree2642ee58996918ae4a09be9d82d97a6516eb215b /include/linux/mlx4
parent4ba6b8eaa9d67d03fb653cb8a13afca3236d4d70 (diff)
mlx4: Enforce device max FMR maps in FMR alloc
ConnectX devices have a limit on the number of mappings that can be done on an FMR before having to call sync_tpt. The current mlx4_ib driver reports the limit correctly in max_map_per_fmr in .query_device(), but mlx4_core doesn't check it when actually allocating FMRs. Add a max_fmr_maps field to struct mlx4_caps and enforce this maximum value on FMR allocations. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.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 aea61905499b..263d2ae21ac1 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -273,6 +273,7 @@ struct mlx4_caps {
int num_comp_vectors;
int comp_pool;
int num_mpts;
+ int max_fmr_maps;
int num_mtts;
int fmr_reserved_mtts;
int reserved_mtts;