Thread (1 message) 1 message, 1 author, 2010-02-04

RE: [PATCH 02/25 v2] mlx4_core: add support for arbitrary bitmap sizes

From: Yevgeny Petrilin <hidden>
Date: 2010-02-04 14:15:31
Also in: linux-rdma

quoted
+int mlx4_bitmap_init_no_mask(struct mlx4_bitmap *bitmap, u32 num,
+			     u32 reserved_bot, u32 reserved_top)
+{
+	u32 num_rounded = roundup_pow_of_two(num);
+	return mlx4_bitmap_init(bitmap, num_rounded, num_rounded - 1,
+				reserved_bot, num_rounded - num + reserved_top);
+}
I think I would really prefer things if we got rid of this wrapper.  The mlx4_bitmap stuff is really there to handle the case where we want to have a 
mask and have the non-used bits cycle to avoid reusing QPN etc.
If we have a bitmap with no mask that's no a power of 2 in size, there's really no value in the mlx4 wrapper -- we might as well just allocate a bitmap > directly.

And since this is only used in one place (for the EQ tables) I think it makes sense to just open-code everything in the EQ code.
I am preparing a new set of patches for SRIOV support, this change will be included--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help