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virtchnl: support raw packet in protocol header

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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.

Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Junfeng Guo 2024-07-25 16:08:05 -06:00 committed by Tony Nguyen
parent e312b3a1e2
commit fb4dae4ca3
1 changed files with 11 additions and 1 deletions
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12
include/linux/avf/virtchnl.h
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@ -1121,6 +1121,7 @@ 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)
#define PROTO_HDR_FIELD_MASK ((1UL << PROTO_HDR_SHIFT) - 1)
@ -1266,13 +1267,22 @@ struct virtchnl_proto_hdrs {
u8 pad[3];
/**
* 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];
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);