[v5,1/4] common/iavf: support raw packet in protocol header
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Commit Message
The patch extends existing virtchnl_proto_hdrs structure to allow VF
to pass a pair of buffers as packet data and mask that describe
a match pattern of a filter rule. Then the kernel PF driver is requested
to parse the pair of buffer and figure out low level hardware metadata
(ptype, profile, field vector.. ) to program the expected FDIR or RSS
rules.
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
---
drivers/common/iavf/virtchnl.h | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
@@ -1503,6 +1503,7 @@ enum virtchnl_vfr_states {
};
#define VIRTCHNL_MAX_NUM_PROTO_HDRS 32
+#define VIRTCHNL_MAX_SIZE_RAW_PACKET 1024
#define PROTO_HDR_SHIFT 5
#define PROTO_HDR_FIELD_START(proto_hdr_type) \
(proto_hdr_type << PROTO_HDR_SHIFT)
@@ -1697,14 +1698,25 @@ VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_proto_hdr);
struct virtchnl_proto_hdrs {
u8 tunnel_level;
/**
- * specify where protocol header start from.
+ * specify where protocol header start from. must be 0 when sending a raw packet request.
* 0 - from the outer layer
* 1 - from the first inner layer
* 2 - from the second inner layer
* ....
- **/
- int count; /* the proto layers must < VIRTCHNL_MAX_NUM_PROTO_HDRS */
- struct virtchnl_proto_hdr proto_hdr[VIRTCHNL_MAX_NUM_PROTO_HDRS];
+ */
+ int count;
+ /**
+ * number of proto layers, must < VIRTCHNL_MAX_NUM_PROTO_HDRS
+ * must be 0 for a raw packet request.
+ */
+ union {
+ struct virtchnl_proto_hdr proto_hdr[VIRTCHNL_MAX_NUM_PROTO_HDRS];
+ struct {
+ u16 pkt_len;
+ u8 spec[VIRTCHNL_MAX_SIZE_RAW_PACKET];
+ u8 mask[VIRTCHNL_MAX_SIZE_RAW_PACKET];
+ } raw;
+ };
};
VIRTCHNL_CHECK_STRUCT_LEN(2312, virtchnl_proto_hdrs);