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| author | Michael S. Tsirkin <mst@mellanox.co.il> | 2007-02-10 22:17:26 +0100 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-02-13 01:16:29 +0100 |
| commit | c7d204e8fdf02f88d91707213f473805bcfb977b (patch) | |
| tree | 9bef52255b0192fc44da59658a2e94dfadaff3d7 /drivers | |
| parent | RDMA/cxgb3: Add driver for Chelsio T3 RNIC (diff) | |
| download | linux-c7d204e8fdf02f88d91707213f473805bcfb977b.tar.xz linux-c7d204e8fdf02f88d91707213f473805bcfb977b.zip | |
IB/mthca: Fix reserved MTTs calculation on mem-free HCAs
The reserved_mtts field has different meaning in Tavor and Arbel, so
we are wasting mtt entries on memfree. Fix the Arbel case to match
Tavor semantics.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_cmd.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c index 968d1519761c..71314460b11e 100644 --- a/drivers/infiniband/hw/mthca/mthca_cmd.c +++ b/drivers/infiniband/hw/mthca/mthca_cmd.c @@ -1051,7 +1051,11 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev *dev, MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EQ_OFFSET); dev_lim->max_eqs = 1 << (field & 0x7); MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET); - dev_lim->reserved_mtts = 1 << (field >> 4); + if (mthca_is_memfree(dev)) + dev_lim->reserved_mtts = ALIGN((1 << (field >> 4)) * sizeof(u64), + MTHCA_MTT_SEG_SIZE) / MTHCA_MTT_SEG_SIZE; + else + dev_lim->reserved_mtts = 1 << (field >> 4); MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET); dev_lim->max_mrw_sz = 1 << field; MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MRW_OFFSET); |