> You're admitting that Eric's patches improve driver quality,
> stability, and performance but you're not allowing this in the kernel
> because "we know what benchmarks our customers are going to run".
Note that I do not particularly care if these patches go in 4.11 or 4.12 really.
I already backported them into our 4.3 based kernel.
I guess that we could at least propose the trivial patch for stable releases,
since PowerPC arches really need it.
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index
cec59bc264c9ac197048fd7c98bcd5cf25de0efd..0f6d2f3b7d54f51de359d4ccde21f4585e6b7852
100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -102,7 +102,8 @@
/* Use the maximum between 16384 and a single page */
#define MLX4_EN_ALLOC_SIZE PAGE_ALIGN(16384)
-#define MLX4_EN_ALLOC_PREFER_ORDER PAGE_ALLOC_COSTLY_ORDER
+#define MLX4_EN_ALLOC_PREFER_ORDER min_t(int, get_order(32768),
\
+ PAGE_ALLOC_COSTLY_ORDER)
/* Receive fragment sizes; we use at most 3 fragments (for 9600 byte MTU
* and 4K allocations) */
