[PATCH rdma-next 05/10] IB/uverbs: Expose XRQ capabilities
From: Leon Romanovsky <hidden>
Date: 2016-08-28 11:00:45
Subsystem:
infiniband subsystem, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
From: Artemy Kovalyov <artemyko-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> Make XRQ capabilities available via ibv_query_device() verb. Signed-off-by: Artemy Kovalyov <artemyko-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> Signed-off-by: Leon Romanovsky <redacted> --- drivers/infiniband/core/uverbs_cmd.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index e1fb1cd..548d4b4 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c@@ -4173,6 +4173,17 @@ 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.xrq_caps)) + goto end; + + resp.xrq_caps.max_unexpected_tags = attr.xrq_caps.max_unexpected_tags; + resp.xrq_caps.tag_mask_length = attr.xrq_caps.tag_mask_length; + resp.xrq_caps.header_size = attr.xrq_caps.header_size; + resp.xrq_caps.app_context_size = attr.xrq_caps.app_context_size; + resp.xrq_caps.max_match_list = attr.xrq_caps.max_match_list; + resp.xrq_caps.capability_flags = attr.xrq_caps.capability_flags; + resp.response_length += sizeof(resp.xrq_caps); end: err = ib_copy_to_udata(ucore, &resp, resp.response_length); return err;
--
2.7.4
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