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| author | Eli Cohen <eli@mellanox.co.il> | 2009-05-27 14:36:16 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2009-05-27 14:36:16 -0700 |
| commit | c1f67a88bf62fac0f4151c007b361199c2cd1988 (patch) | |
| tree | 5bb527966e1a6cd2a3c06f6df70199df948e3817 /drivers/infiniband/hw/mthca/mthca_cmd.c | |
| parent | 210af919c949a7d6bd330916ef376cec2907d81e (diff) | |
| download | op-kernel-dev-c1f67a88bf62fac0f4151c007b361199c2cd1988.zip op-kernel-dev-c1f67a88bf62fac0f4151c007b361199c2cd1988.tar.gz | |
IB/mthca: Add module parameter for number of MTTs per segment
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>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_cmd.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_cmd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c index 6d55f9d..8c2ed99 100644 --- a/drivers/infiniband/hw/mthca/mthca_cmd.c +++ b/drivers/infiniband/hw/mthca/mthca_cmd.c @@ -1059,7 +1059,7 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev *dev, MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET); if (mthca_is_memfree(dev)) dev_lim->reserved_mtts = ALIGN((1 << (field >> 4)) * sizeof(u64), - MTHCA_MTT_SEG_SIZE) / MTHCA_MTT_SEG_SIZE; + dev->limits.mtt_seg_size) / dev->limits.mtt_seg_size; else dev_lim->reserved_mtts = 1 << (field >> 4); MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET); |
