From: Slava Shwartsman <slavash@xxxxxxxxxxxx>
This flow steering specification identifies flow for drop by the HW.
If user create a flow only with the drop specification,
then all the packets that hit this flow will be dropped, otherwise the HW
will drop only the packets that match the other L2/L3/L4 specifications.
Signed-off-by: Slava Shwartsman <slavash@xxxxxxxxxxxx>
Reviewed-by: Maor Gottlieb <maorg@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
---
drivers/infiniband/core/uverbs.h | 1 +
drivers/infiniband/core/uverbs_cmd.c | 7 +++++++
include/rdma/ib_verbs.h | 7 +++++++
include/uapi/rdma/ib_user_verbs.h | 11 +++++++++++
4 files changed, 26 insertions(+)
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index e1bedf0bac04..0f5578f8ba59 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -229,6 +229,7 @@ struct ib_uverbs_flow_spec {
struct ib_uverbs_flow_spec_tcp_udp tcp_udp;
struct ib_uverbs_flow_spec_ipv6 ipv6;
struct ib_uverbs_flow_spec_action_tag flow_tag;
+ struct ib_uverbs_flow_spec_action_drop drop;
};
};
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 7b7a76e1279a..4e5062dd84e0 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -3227,6 +3227,13 @@ static int kern_spec_to_ib_spec_action(struct ib_uverbs_flow_spec *kern_spec,
ib_spec->flow_tag.size = sizeof(struct ib_flow_spec_action_tag);
ib_spec->flow_tag.tag_id = kern_spec->flow_tag.tag_id;
break;
+ case IB_FLOW_SPEC_ACTION_DROP:
+ if (kern_spec->drop.size !=
+ sizeof(struct ib_uverbs_flow_spec_action_drop))
+ return -EINVAL;
+
+ ib_spec->drop.size = sizeof(struct ib_flow_spec_action_drop);
+ break;
default:
return -EINVAL;
}
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 0f1813c13687..1676d36956ee 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1662,6 +1662,7 @@ enum ib_flow_spec_type {
IB_FLOW_SPEC_INNER = 0x100,
/* Actions */
IB_FLOW_SPEC_ACTION_TAG = 0x1000,
+ IB_FLOW_SPEC_ACTION_DROP = 0x1001,
};
#define IB_FLOW_SPEC_LAYER_MASK 0xF0
#define IB_FLOW_SPEC_SUPPORT_LAYERS 8
@@ -1790,6 +1791,11 @@ struct ib_flow_spec_action_tag {
u32 tag_id;
};
+struct ib_flow_spec_action_drop {
+ enum ib_flow_spec_type type;
+ u16 size;
+};
+
union ib_flow_spec {
struct {
u32 type;
@@ -1802,6 +1808,7 @@ union ib_flow_spec {
struct ib_flow_spec_ipv6 ipv6;
struct ib_flow_spec_tunnel tunnel;
struct ib_flow_spec_action_tag flow_tag;
+ struct ib_flow_spec_action_drop drop;
};
struct ib_flow_attr {
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 997f904c7692..477d629f539d 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -947,6 +947,17 @@ struct ib_uverbs_flow_spec_action_tag {
__u32 reserved1;
};
+struct ib_uverbs_flow_spec_action_drop {
+ union {
+ struct ib_uverbs_flow_spec_hdr hdr;
+ struct {
+ __u32 type;
+ __u16 size;
+ __u16 reserved;
+ };
+ };
+};
+
struct ib_uverbs_flow_tunnel_filter {
__be32 tunnel_id;
};
--
2.12.0
--
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