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Message-ID: <20240710204015.124233-10-ahmed.zaki@intel.com>
Date: Wed, 10 Jul 2024 14:40:11 -0600
From: Ahmed Zaki <ahmed.zaki@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: netdev@...r.kernel.org,
anthony.l.nguyen@...el.com,
horms@...nel.org,
Junfeng Guo <junfeng.guo@...el.com>,
Marcin Szycik <marcin.szycik@...ux.intel.com>,
Ahmed Zaki <ahmed.zaki@...el.com>
Subject: [PATCH iwl-next v3 09/13] virtchnl: support raw packet in protocol header
From: Junfeng Guo <junfeng.guo@...el.com>
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: Marcin Szycik <marcin.szycik@...ux.intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@...el.com>
Signed-off-by: Junfeng Guo <junfeng.guo@...el.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@...el.com>
---
include/linux/avf/virtchnl.h | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h
index 8e177b67e82f..4f78a65e33dc 100644
--- a/include/linux/avf/virtchnl.h
+++ b/include/linux/avf/virtchnl.h
@@ -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);
--
2.43.0
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