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IB/uverbs: Add device memory capabilities reporting

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This change allows vendors to report device memory capability
max_dm_size - to user via uverbs command.

Signed-off-by: Ariel Levkovich <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
This commit is contained in:
Ariel Levkovich 2018-04-05 18:53:23 +03:00 • committed by Jason Gunthorpe
commit 1d8eeb9f6a
2 changed files with 7 additions and 0 deletions
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6
drivers/infiniband/core/uverbs_cmd.c
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@ -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;