From: Ariel Levkovich <lariel@xxxxxxxxxxxx>
Add ib_uverbs_flow_spec_gre to define the rule to match GRE
encapsulation protocol.
The spec includes the generic specs header, type, size and reserved
fields while the filter itself is defined as ib_uverbs_flow_gre_filter
and includes:
1. Checksum present bit, key present bit and version bits in a single
16bit field.
2. Protocol type field - Indicates the ether protocol type of the
encapsulated payload.
3. Key field - present if key bit is set and contains an application
specific key value.
Reviewed-by: Mark Bloch <markb@xxxxxxxxxxxx>
Signed-off-by: Ariel Levkovich <lariel@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
include/uapi/rdma/ib_user_verbs.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 6aeb03315b0b..77c1a9a76e71 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -1033,6 +1033,33 @@ struct ib_uverbs_flow_spec_esp {
struct ib_uverbs_flow_spec_esp_filter mask;
};
+struct ib_uverbs_flow_gre_filter {
+ /* c_ks_res0_ver field is bits 0-15 in offset 0 of a standard GRE header:
+ * bit 0 - C - checksum bit.
+ * bit 1 - reserved. set to 0.
+ * bit 2 - key bit.
+ * bit 3 - sequence number bit.
+ * bits 4:12 - reserved. set to 0.
+ * bits 13:15 - GRE version.
+ */
+ __be16 c_ks_res0_ver;
+ __be16 protocol;
+ __be32 key;
+};
+
+struct ib_uverbs_flow_spec_gre {
+ union {
+ struct ib_uverbs_flow_spec_hdr hdr;
+ struct {
+ __u32 type;
+ __u16 size;
+ __u16 reserved;
+ };
+ };
+ struct ib_uverbs_flow_gre_filter val;
+ struct ib_uverbs_flow_gre_filter mask;
+};
+
struct ib_uverbs_flow_attr {
__u32 type;
__u16 size;
--
2.14.3
--
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