diff options
| author | Yishai Hadas <yishaih@mellanox.com> | 2016-08-28 11:28:44 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-10-07 16:54:12 -0400 |
| commit | 47adf2f4f5805d075359fe6cbe3437612f7d4a34 (patch) | |
| tree | 71b115d2db3866eb8f708d77c14abc61c6a19fc2 | |
| parent | ccf20562601d2b911787ffa730ad96bb78269a9c (diff) | |
IB/uverbs: Expose RSS related capabilities
Query RSS related attributes and return them to user-space via the
extended query device uverbs command.
It includes both direct ones (i.e. struct ib_uverbs_rss_caps) and
max_wq_type_rq which may be used in both RSS and non RSS flows.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
| -rw-r--r-- | drivers/infiniband/core/uverbs_cmd.c | 17 | ||||
| -rw-r--r-- | include/uapi/rdma/ib_user_verbs.h | 14 |
2 files changed, 31 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index fe784a908817..19c1ebf596ad 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -4173,6 +4173,23 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file, resp.device_cap_flags_ex = attr.device_cap_flags; resp.response_length += sizeof(resp.device_cap_flags_ex); + + if (ucore->outlen < resp.response_length + sizeof(resp.rss_caps)) + goto end; + + resp.rss_caps.supported_qpts = attr.rss_caps.supported_qpts; + resp.rss_caps.max_rwq_indirection_tables = + attr.rss_caps.max_rwq_indirection_tables; + resp.rss_caps.max_rwq_indirection_table_size = + attr.rss_caps.max_rwq_indirection_table_size; + + resp.response_length += sizeof(resp.rss_caps); + + if (ucore->outlen < resp.response_length + sizeof(resp.max_wq_type_rq)) + goto end; + + resp.max_wq_type_rq = attr.max_wq_type_rq; + resp.response_length += sizeof(resp.max_wq_type_rq); end: err = ib_copy_to_udata(ucore, &resp, resp.response_length); return err; diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index 7f035f4b53b0..a9ebb477dc77 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -224,6 +224,17 @@ struct ib_uverbs_odp_caps { __u32 reserved; }; +struct ib_uverbs_rss_caps { + /* Corresponding bit will be set if qp type from + * 'enum ib_qp_type' is supported, e.g. + * supported_qpts |= 1 << IB_QPT_UD + */ + __u32 supported_qpts; + __u32 max_rwq_indirection_tables; + __u32 max_rwq_indirection_table_size; + __u32 reserved; +}; + struct ib_uverbs_ex_query_device_resp { struct ib_uverbs_query_device_resp base; __u32 comp_mask; @@ -232,6 +243,9 @@ struct ib_uverbs_ex_query_device_resp { __u64 timestamp_mask; __u64 hca_core_clock; /* in KHZ */ __u64 device_cap_flags_ex; + struct ib_uverbs_rss_caps rss_caps; + __u32 max_wq_type_rq; + __u32 reserved; }; struct ib_uverbs_query_port { |