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| author | Ariel Levkovich <lariel@mellanox.com> | 2018-04-05 18:53:23 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-04-05 11:16:39 -0600 |
| commit | 1d8eeb9f6a6e0d8ac43a54fd95126044bf8d6695 (patch) | |
| tree | 4b26e7293fb75f6c1b1e19a7fd54198e4d687816 | |
| parent | d41c1208955394198398f8a2ab8e0e25ad592e2b (diff) | |
| download | linux-1d8eeb9f6a6e0d8ac43a54fd95126044bf8d6695.tar.gz linux-1d8eeb9f6a6e0d8ac43a54fd95126044bf8d6695.tar.bz2 linux-1d8eeb9f6a6e0d8ac43a54fd95126044bf8d6695.zip | |
IB/uverbs: Add device memory capabilities reporting
This change allows vendors to report device memory capability
max_dm_size - to user via uverbs command.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| -rw-r--r-- | drivers/infiniband/core/uverbs_cmd.c | 6 | ||||
| -rw-r--r-- | include/rdma/ib_verbs.h | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index f38600490fd1..13cb5e4deb86 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -4006,6 +4006,12 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file, resp.cq_moderation_caps.max_cq_moderation_period = attr.cq_caps.max_cq_moderation_period; resp.response_length += sizeof(resp.cq_moderation_caps); + + if (ucore->outlen < resp.response_length + sizeof(resp.max_dm_size)) + goto end; + + resp.max_dm_size = attr.max_dm_size; + resp.response_length += sizeof(resp.max_dm_size); end: err = ib_copy_to_udata(ucore, &resp, resp.response_length); return err; diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index a6dba77c1b28..ed425627efd8 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -372,6 +372,7 @@ struct ib_device_attr { u32 raw_packet_caps; /* Use ib_raw_packet_caps enum */ struct ib_tm_caps tm_caps; struct ib_cq_caps cq_caps; + u64 max_dm_size; }; enum ib_mtu { |