diff options
| author |   Sagi Grimberg <sagig@mellanox.com> | 2015-07-20 19:54:36 +0300 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2015-08-28 22:54:46 -0400 |
| commit | a3c874200cbcd95ed914ba84f33f571a0ef7adfa (patch) | |
| tree | 07ed51041215501b61f6f0d7672bafcbfa6e4062 /drivers/net/ethernet/mellanox/mlx5/core/fw.c | |
| parent | Linux 4.2-rc8 (diff) | |
| download | linux-dev-a3c874200cbcd95ed914ba84f33f571a0ef7adfa.tar.xz linux-dev-a3c874200cbcd95ed914ba84f33f571a0ef7adfa.zip | |
mlx5: Fix missing device local_dma_lkey
The mlx5 driver exposes device capability IB_DEVICE_LOCAL_DMA_LKEY
but does not set the the device local_dma_lkey. This breaks
rpcrdma drivers.
Query and set this lkey when creating the device resources.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/fw.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/fw.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c index 9335e5ae18cc..aa0d5ffe92d8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c @@ -200,3 +200,25 @@ int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev) return err; } + +int mlx5_core_query_special_context(struct mlx5_core_dev *dev, u32 *rsvd_lkey) +{ + struct mlx5_cmd_query_special_contexts_mbox_in in; + struct mlx5_cmd_query_special_contexts_mbox_out out; + int err; + + memset(&in, 0, sizeof(in)); + memset(&out, 0, sizeof(out)); + in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS); + err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); + if (err) + return err; + + if (out.hdr.status) + err = mlx5_cmd_status_to_err(&out.hdr); + + *rsvd_lkey = be32_to_cpu(out.resd_lkey); + + return err; +} +EXPORT_SYMBOL(mlx5_core_query_special_context); |