diff options
| author | Michael S. Tsirkin <mst@mellanox.co.il> | 2005-04-16 15:26:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:26:30 -0700 |
| commit | e0f5fdca1ca9d1659b920827e5cf6dbad20e5391 (patch) | |
| tree | 71e6410e14c4c285ce128e99070a38ded75a14f7 /drivers/infiniband/hw/mthca/mthca_profile.h | |
| parent | d0a9d25cdcd511dd523357bc902979220dc72a2e (diff) | |
[PATCH] IB/mthca: add fast memory region implementation
Implement fast memory regions (FMRs), where the driver writes directly into
the HCA's translation tables rather than requiring a firmware command. For
Tavor, MTTs for FMR are separate from regular MTTs, and are reserved at driver
initialization. This is done to limit the amount of virtual memory needed to
map the MTTs. For Arbel, there's no such limitation, and all MTTs and MPTs
may be used for FMR or for regular MR.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_profile.h')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_profile.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_profile.h b/drivers/infiniband/hw/mthca/mthca_profile.h index daaf7999486..17aef335766 100644 --- a/drivers/infiniband/hw/mthca/mthca_profile.h +++ b/drivers/infiniband/hw/mthca/mthca_profile.h @@ -48,6 +48,7 @@ struct mthca_profile { int num_udav; int num_uar; int uarc_size; + int fmr_reserved_mtts; }; u64 mthca_make_profile(struct mthca_dev *mdev, |