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IB/uverbs: Extend modify_qp and support packet pacing

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An new uverbs command ib_uverbs_ex_modify_qp is added to support more QP
attributes. User driver should choose to call the legacy/extended API
based on input mask.

IB_USER_LAST_QP_ATTR_MASK is added to indicated the maximum bit position
which supports legacy ib_uverbs_modify_qp.
IB_USER_LEGACY_LAST_QP_ATTR_MASK indicates the maximum bit position
which supports ib_uverbs_ex_modify_qp, the value of this mask should be
updated if new mask is added later.

Along with this change, rate_limit is supported by the extended command,
user driver could use it to control packet packing.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Bodong Wang
2016-12-01 13:43:15 +02:00
committed by Doug Ledford
parent 528e5a1bd3
commit 189aba99e7
4 changed files with 144 additions and 67 deletions
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1
drivers/infiniband/core/uverbs.h
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@@ -289,5 +289,6 @@ IB_UVERBS_DECLARE_EX_CMD(modify_wq);
IB_UVERBS_DECLARE_EX_CMD(destroy_wq);
IB_UVERBS_DECLARE_EX_CMD(create_rwq_ind_table);
IB_UVERBS_DECLARE_EX_CMD(destroy_rwq_ind_table);
IB_UVERBS_DECLARE_EX_CMD(modify_qp);
#endif /* UVERBS_H */