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Commit 1d8eeb9f authored by Ariel Levkovich's avatar Ariel Levkovich Committed by Jason Gunthorpe
Browse files

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: default avatarAriel Levkovich <lariel@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent d41c1208

drivers/infiniband/core/uverbs_cmd.c

+6 −0
Original line number Diff line number Diff line
@@ -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;

include/rdma/ib_verbs.h

+1 −0
Original line number Diff line number Diff line
@@ -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 {