Increase QPs per multicast group to 56 (needed to support 16-core nodes).
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Index: connectx_kernel/drivers/net/mlx4/mlx4.h

===================================================================

--- connectx_kernel.orig/drivers/net/mlx4/mlx4.h	2007-07-08 16:31:10.000000000 +0300

+++ connectx_kernel/drivers/net/mlx4/mlx4.h	2007-07-08 16:31:47.000000000 +0300

@@ -59,7 +59,7 @@

 };
 enum {

-	MLX4_MGM_ENTRY_SIZE	=  0x40,

+	MLX4_MGM_ENTRY_SIZE	=  0x100,

 	MLX4_QP_PER_MGM		= 4 * (MLX4_MGM_ENTRY_SIZE / 16 - 2),

 	MLX4_MTT_ENTRY_PER_SEG	= 8

 };

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Do we want a similar change for mthca?
 - R.

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Yes
Tziporet

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Thanks, I just applied Jack's patch and also this:
commit adeeb48f21a36693fed11b318bce132571ed3679

Author: Roland Dreier <rolandd@cisco.com>

Date:   Fri Oct 5 16:03:44 2007 -0700
    IB/mthca: Increase max number of QPs per multicast group to 56
    Increase the number of QPs allowed per multicast group from 8 to 56.

    This allows for one QP per core on 16-core systems, which are now

    quite common, and allows some space for future growth.
    This is basically the same patch that Jack Morgenstein

    <jackm@dev.mellanox.co.il> just supplied for mlx4.
    Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h

index 9bae3cc..15aa32e 100644

--- a/drivers/infiniband/hw/mthca/mthca_dev.h

+++ b/drivers/infiniband/hw/mthca/mthca_dev.h

@@ -83,7 +83,7 @@ enum {

 	MTHCA_QP_CONTEXT_SIZE = 0x200,

 	MTHCA_RDB_ENTRY_SIZE  =  0x20,

 	MTHCA_AV_SIZE         =  0x20,

-	MTHCA_MGM_ENTRY_SIZE  =  0x40,

+	MTHCA_MGM_ENTRY_SIZE  = 0x100,
 	/* Arbel FW gives us these, but we need them for Tavor */

 	MTHCA_MPT_ENTRY_SIZE  =  0x40,

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