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Commit 85665c98 authored by Roland Dreier's avatar Roland Dreier Committed by Linus Torvalds
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[PATCH] IB/mthca: allocate correct number of doorbell pages 



Doorbell record pages are allocated in HCA page size chunks (always 4096
bytes), so we need to divide by 4096 and not PAGE_SIZE when figuring out how
many pages we'll need space for.

Signed-off-by: default avatarRoland Dreier <roland@topspin.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent e464b2a6

drivers/infiniband/hw/mthca/mthca_memfree.c

+1 −1
Original line number Diff line number Diff line
@@ -446,7 +446,7 @@ int mthca_init_db_tab(struct mthca_dev *dev) 


	init_MUTEX(&dev->db_tab->mutex);



	dev->db_tab->npages     = dev->uar_table.uarc_size / PAGE_SIZE;

	dev->db_tab->npages     = dev->uar_table.uarc_size / 4096;

	dev->db_tab->max_group1 = 0;

	dev->db_tab->min_group2 = dev->db_tab->npages - 1;