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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_profile.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus (diff) | |
| download | linux-dev-c1f67a88bf62fac0f4151c007b361199c2cd1988.tar.xz linux-dev-c1f67a88bf62fac0f4151c007b361199c2cd1988.zip | |
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_profile.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_profile.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_profile.c b/drivers/infiniband/hw/mthca/mthca_profile.c index d168c2540611..8edb28a9a0e7 100644 --- a/drivers/infiniband/hw/mthca/mthca_profile.c +++ b/drivers/infiniband/hw/mthca/mthca_profile.c @@ -94,7 +94,7 @@ s64 mthca_make_profile(struct mthca_dev *dev, profile[MTHCA_RES_RDB].size = MTHCA_RDB_ENTRY_SIZE; profile[MTHCA_RES_MCG].size = MTHCA_MGM_ENTRY_SIZE; profile[MTHCA_RES_MPT].size = dev_lim->mpt_entry_sz; - profile[MTHCA_RES_MTT].size = MTHCA_MTT_SEG_SIZE; + profile[MTHCA_RES_MTT].size = dev->limits.mtt_seg_size; profile[MTHCA_RES_UAR].size = dev_lim->uar_scratch_entry_sz; profile[MTHCA_RES_UDAV].size = MTHCA_AV_SIZE; profile[MTHCA_RES_UARC].size = request->uarc_size; @@ -232,7 +232,7 @@ s64 mthca_make_profile(struct mthca_dev *dev, dev->limits.num_mtt_segs = profile[i].num; dev->mr_table.mtt_base = profile[i].start; init_hca->mtt_base = profile[i].start; - init_hca->mtt_seg_sz = ffs(MTHCA_MTT_SEG_SIZE) - 7; + init_hca->mtt_seg_sz = ffs(dev->limits.mtt_seg_size) - 7; break; case MTHCA_RES_UAR: dev->limits.num_uars = profile[i].num; |