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Commit 0b24e5ac authored by Majd Dibbiny's avatar Majd Dibbiny Committed by Doug Ledford
Browse files

IB/core: Add extended device capability flags 



Since all the uverbs device_cap_flags are occupied, we need a place to
expose more device capabilities.

This patch adds a new 64 bit device_cap_flags_ex to expose new
device capabilities.

The lower 32 bits will be identical to the original device_cap_flags,
The upper 32 bits will be new capabilities.

Signed-off-by: default avatarMajd Dibbiny <majd@mellanox.com>
Signed-off-by: default avatarMatan Barak <matanb@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 73fbb4db

drivers/infiniband/core/uverbs_cmd.c

+5 −0
Original line number Diff line number Diff line
@@ -3655,6 +3655,11 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file, 
	resp.hca_core_clock = attr.hca_core_clock;

	resp.response_length += sizeof(resp.hca_core_clock);



	if (ucore->outlen < resp.response_length + sizeof(resp.device_cap_flags_ex))

		goto end;



	resp.device_cap_flags_ex = attr.device_cap_flags;

	resp.response_length += sizeof(resp.device_cap_flags_ex);

end:

	err = ib_copy_to_udata(ucore, &resp, resp.response_length);

	return err;

include/uapi/rdma/ib_user_verbs.h

+1 −0
Original line number Diff line number Diff line
@@ -226,6 +226,7 @@ struct ib_uverbs_ex_query_device_resp { 
	struct ib_uverbs_odp_caps odp_caps;

	__u64 timestamp_mask;

	__u64 hca_core_clock; /* in KHZ */

	__u64 device_cap_flags_ex;

};



struct ib_uverbs_query_port {