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Commit 02984cc7 authored by Yishai Hadas's avatar Yishai Hadas Committed by Doug Ledford
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IB/core: Enable QP creation with a given source QP number 



Enable QP creation with a given source QP number.
The created QP will use the source QPN as its wire QP number.

This comes as a pre-patch for downstream patches in this series to
allow user space applications to accelerate traffic which is typically
handled by IPoIB ULP.

Signed-off-by: default avatarYishai Hadas <yishaih@mellanox.com>
Reviewed-by: default avatarMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 9636a56f

include/rdma/ib_verbs.h

+2 −0
Original line number Diff line number Diff line
@@ -1059,6 +1059,7 @@ enum ib_qp_create_flags { 
	/* FREE					= 1 << 7, */

	IB_QP_CREATE_SCATTER_FCS		= 1 << 8,

	IB_QP_CREATE_CVLAN_STRIPPING		= 1 << 9,

	IB_QP_CREATE_SOURCE_QPN			= 1 << 10,

	/* reserve bits 26-31 for low level drivers' internal use */

	IB_QP_CREATE_RESERVED_START		= 1 << 26,

	IB_QP_CREATE_RESERVED_END		= 1 << 31,
@@ -1086,6 +1087,7 @@ struct ib_qp_init_attr { 
	 */

	u8			port_num;

	struct ib_rwq_ind_table *rwq_ind_tbl;

	u32			source_qpn;

};



struct ib_qp_open_attr {