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Commit 240ae00e authored by Matan Barak's avatar Matan Barak Committed by Roland Dreier
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IB/core: Add support for IB L2 device-managed steering 



This patch adds preliminary support for IB L2 device-managed steering,
currently exposed only in the kernel.

This flow spec can be used by low-level drivers that need to indicate
the link layer type when creating device-managed flow rules.

Signed-off-by: default avatarMatan Barak <matanb@mellanox.com>
Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent 90f1d1b4

include/rdma/ib_verbs.h

+15 −1
Original line number Original line Diff line number Diff line
@@ -1100,13 +1100,14 @@ enum ib_flow_attr_type { 
enum ib_flow_spec_type {

enum ib_flow_spec_type {

	/* L2 headers*/

	/* L2 headers*/

	IB_FLOW_SPEC_ETH	= 0x20,

	IB_FLOW_SPEC_ETH	= 0x20,

	IB_FLOW_SPEC_IB		= 0x22,

	/* L3 header*/

	/* L3 header*/

	IB_FLOW_SPEC_IPV4	= 0x30,

	IB_FLOW_SPEC_IPV4	= 0x30,

	/* L4 headers*/

	/* L4 headers*/

	IB_FLOW_SPEC_TCP	= 0x40,

	IB_FLOW_SPEC_TCP	= 0x40,

	IB_FLOW_SPEC_UDP	= 0x41

	IB_FLOW_SPEC_UDP	= 0x41

};

};



#define IB_FLOW_SPEC_LAYER_MASK	0xF0

#define IB_FLOW_SPEC_SUPPORT_LAYERS 4

#define IB_FLOW_SPEC_SUPPORT_LAYERS 4





/* Flow steering rule priority is set according to it's domain.

/* Flow steering rule priority is set according to it's domain.
@@ -1134,6 +1135,18 @@ struct ib_flow_spec_eth { 
	struct ib_flow_eth_filter mask;

	struct ib_flow_eth_filter mask;

};

};





struct ib_flow_ib_filter {

	__be16 dlid;

	__u8   sl;

};



struct ib_flow_spec_ib {

	enum ib_flow_spec_type	 type;

	u16			 size;

	struct ib_flow_ib_filter val;

	struct ib_flow_ib_filter mask;

};



struct ib_flow_ipv4_filter {

struct ib_flow_ipv4_filter {

	__be32	src_ip;

	__be32	src_ip;

	__be32	dst_ip;

	__be32	dst_ip;
@@ -1164,6 +1177,7 @@ union ib_flow_spec { 
		u16			size;

		u16			size;

	};

	};

	struct ib_flow_spec_eth		eth;

	struct ib_flow_spec_eth		eth;

	struct ib_flow_spec_ib		ib;

	struct ib_flow_spec_ipv4        ipv4;

	struct ib_flow_spec_ipv4        ipv4;

	struct ib_flow_spec_tcp_udp	tcp_udp;

	struct ib_flow_spec_tcp_udp	tcp_udp;

};

};