[openib-general] [PATCH] mthca: fix page shift calculation

[Michael S. Tsirkin]

Fix page shift calculation: for all pages except possibly the last one, the byte
beyond the buffer end must be page aligned.

Signed-off-by: Michael S. Tsirkin <mst at mellanox.co.il>

Index: openib/drivers/infiniband/hw/mthca/mthca_provider.c
===================================================================
--- openib/drivers/infiniband/hw/mthca/mthca_provider.c	(revision 4722)
+++ openib/drivers/infiniband/hw/mthca/mthca_provider.c	(working copy)
@@ -787,6 +787,8 @@ static struct ib_mr *mthca_reg_phys_mr(s
 		total_size += buffer_list[i].size;
 		if (i > 0)
 			mask |= buffer_list[i].addr;
+		if(i < (num_phys_buf - 1))
+			mask |= buffer_list[i].addr + buffer_list[i].size;
 	}
 
 	/* Find largest page shift we can use to cover buffers */

-- 
MST