IB/mthca: Add module parameter for number of MTTs per segment

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The current MTT allocator uses kmalloc() to allocate a buffer for its
buddy allocator, and thus is limited in the amount of MTT segments
that it can control.  As a result, the size of memory that can be
registered is limited too.  This patch uses a module parameter to
control the number of MTT entries that each segment represents,
allowing more memory to be registered with the same number of
segments.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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Eli Cohen 2009-05-27 14:36:16 -07:00 • committed by Roland Dreier

parent 210af919c9

commit c1f67a88bf

5 changed files with 26 additions and 14 deletions

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2

drivers/infiniband/hw/mthca/mthca_cmd.c

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1

drivers/infiniband/hw/mthca/mthca_dev.h

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17

drivers/infiniband/hw/mthca/mthca_main.c

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16

drivers/infiniband/hw/mthca/mthca_mr.c

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4

drivers/infiniband/hw/mthca/mthca_profile.c

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