diff options
| author | Eli Cohen <eli@mellanox.co.il> | 2006-03-02 12:40:46 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-03-20 10:08:22 -0800 |
| commit | 651eaac92894f8b6761c51b6637ea9cacea7fba2 (patch) | |
| tree | 8be06461ef870b7d130ebce39f55fe93af6ac542 /drivers/infiniband/hw/mthca/mthca_dev.h | |
| parent | 27d56300647f6e76847bc2407d7abc782fe87495 (diff) | |
IB/mthca: Optimize large messages on Sinai HCAs
Sinai (one-port PCI Express) HCAs get improved throughput for messages
bigger than 80 KB in DDR mode if memory keys are formatted in a
specific way. The enhancement only works if the memory key table is
smaller than 2^24 entries. For larger tables, the enhancement is off
and a warning is printed (to avoid silent performance loss).
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Michael Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_dev.h')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_dev.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h index ea48c897c7c..ad52edbefe9 100644 --- a/drivers/infiniband/hw/mthca/mthca_dev.h +++ b/drivers/infiniband/hw/mthca/mthca_dev.h @@ -64,7 +64,8 @@ enum { MTHCA_FLAG_NO_LAM = 1 << 5, MTHCA_FLAG_FMR = 1 << 6, MTHCA_FLAG_MEMFREE = 1 << 7, - MTHCA_FLAG_PCIE = 1 << 8 + MTHCA_FLAG_PCIE = 1 << 8, + MTHCA_FLAG_SINAI_OPT = 1 << 9 }; enum { |