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IB/core: Introduce inner flow steering

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For a tunneled packet which contains external and internal headers,
we refer to the external headers as "outer fields" and the internal
headers as "inner fields".

Example of a tunneled packet:

{ L2 | L3 | L4 | tunnel header | L2 | L3 | l4 | data }
  |     |    |         |         |    |    |
{       outer fields           }{ inner fields }

This patch introduces a new flag for flow steering rules
- IB_FLOW_SPEC_INNER - which specifies that the rule applies
to the inner fields, rather than to the outer fields of the packet.

Signed-off-by: Moses Reuben <mosesr@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Moses Reuben
2016-11-14 19:04:51 +02:00
committed by Doug Ledford
parent ffb30d8f10
commit fbf46860b1
2 changed files with 12 additions and 9 deletions
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17
include/rdma/ib_verbs.h
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@@ -1601,9 +1601,10 @@ enum ib_flow_spec_type {
IB_FLOW_SPEC_TCP = 0x40,
IB_FLOW_SPEC_UDP = 0x41,
IB_FLOW_SPEC_VXLAN_TUNNEL = 0x50,
IB_FLOW_SPEC_INNER = 0x100,
};
#define IB_FLOW_SPEC_LAYER_MASK 0xF0
#define IB_FLOW_SPEC_SUPPORT_LAYERS 4
#define IB_FLOW_SPEC_SUPPORT_LAYERS 8
/* Flow steering rule priority is set according to it's domain.
* Lower domain value means higher priority.
@@ -1631,7 +1632,7 @@ struct ib_flow_eth_filter {
};
struct ib_flow_spec_eth {
enum ib_flow_spec_type type;
u32 type;
u16 size;
struct ib_flow_eth_filter val;
struct ib_flow_eth_filter mask;
@@ -1645,7 +1646,7 @@ struct ib_flow_ib_filter {
};
struct ib_flow_spec_ib {
enum ib_flow_spec_type type;
u32 type;
u16 size;
struct ib_flow_ib_filter val;
struct ib_flow_ib_filter mask;
@@ -1670,7 +1671,7 @@ struct ib_flow_ipv4_filter {
};
struct ib_flow_spec_ipv4 {
enum ib_flow_spec_type type;
u32 type;
u16 size;
struct ib_flow_ipv4_filter val;
struct ib_flow_ipv4_filter mask;
@@ -1688,7 +1689,7 @@ struct ib_flow_ipv6_filter {
};
struct ib_flow_spec_ipv6 {
enum ib_flow_spec_type type;
u32 type;
u16 size;
struct ib_flow_ipv6_filter val;
struct ib_flow_ipv6_filter mask;
@@ -1702,7 +1703,7 @@ struct ib_flow_tcp_udp_filter {
};
struct ib_flow_spec_tcp_udp {
enum ib_flow_spec_type type;
u32 type;
u16 size;
struct ib_flow_tcp_udp_filter val;
struct ib_flow_tcp_udp_filter mask;
@@ -1717,7 +1718,7 @@ struct ib_flow_tunnel_filter {
* the tunnel_id from val has the vni value
*/
struct ib_flow_spec_tunnel {
enum ib_flow_spec_type type;
u32 type;
u16 size;
struct ib_flow_tunnel_filter val;
struct ib_flow_tunnel_filter mask;
@@ -1725,7 +1726,7 @@ struct ib_flow_spec_tunnel {
union ib_flow_spec {
struct {
enum ib_flow_spec_type type;
u32 type;
u16 size;
};
struct ib_flow_spec_eth eth;