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Commit 3872c8d4 authored by Harshitha Ramamurthy's avatar Harshitha Ramamurthy Committed by Jeff Kirsher
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virtchnl: Add filter data structures 



This patch adds infrastructure to send virtchnl messages to the
PF to configure filters on the VF. The patch adds a struct
called virtchnl_filter which contains information about the fields
in the user-specified tc filter.

Signed-off-by: default avatarHarshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 0718e560

include/linux/avf/virtchnl.h

+59 −0
Original line number Diff line number Diff line
@@ -138,6 +138,8 @@ enum virtchnl_ops { 
	VIRTCHNL_OP_REQUEST_QUEUES = 29,

	VIRTCHNL_OP_ENABLE_CHANNELS = 30,

	VIRTCHNL_OP_DISABLE_CHANNELS = 31,

	VIRTCHNL_OP_ADD_CLOUD_FILTER = 32,

	VIRTCHNL_OP_DEL_CLOUD_FILTER = 33,

};



/* These macros are used to generate compilation errors if a structure/union
@@ -525,6 +527,57 @@ struct virtchnl_tc_info { 


VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_tc_info);



/* VIRTCHNL_ADD_CLOUD_FILTER

 * VIRTCHNL_DEL_CLOUD_FILTER

 * VF sends these messages to add or delete a cloud filter based on the

 * user specified match and action filters. These structures encompass

 * all the information that the PF needs from the VF to add/delete a

 * cloud filter.

 */



struct virtchnl_l4_spec {

	u8	src_mac[ETH_ALEN];

	u8	dst_mac[ETH_ALEN];

	__be16	vlan_id;

	__be16	pad; /* reserved for future use */

	__be32	src_ip[4];

	__be32	dst_ip[4];

	__be16	src_port;

	__be16	dst_port;

};



VIRTCHNL_CHECK_STRUCT_LEN(52, virtchnl_l4_spec);



union virtchnl_flow_spec {

	struct	virtchnl_l4_spec tcp_spec;

	u8	buffer[128]; /* reserved for future use */

};



VIRTCHNL_CHECK_UNION_LEN(128, virtchnl_flow_spec);



enum virtchnl_action {

	/* action types */

	VIRTCHNL_ACTION_DROP = 0,

	VIRTCHNL_ACTION_TC_REDIRECT,

};



enum virtchnl_flow_type {

	/* flow types */

	VIRTCHNL_TCP_V4_FLOW = 0,

	VIRTCHNL_TCP_V6_FLOW,

};



struct virtchnl_filter {

	union	virtchnl_flow_spec data;

	union	virtchnl_flow_spec mask;

	enum	virtchnl_flow_type flow_type;

	enum	virtchnl_action action;

	u32	action_meta;

	__u8	field_flags;

};



VIRTCHNL_CHECK_STRUCT_LEN(272, virtchnl_filter);



/* VIRTCHNL_OP_EVENT

 * PF sends this message to inform the VF driver of events that may affect it.

 * No direct response is expected from the VF, though it may generate other
@@ -753,6 +806,12 @@ virtchnl_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode, 
		break;

	case VIRTCHNL_OP_DISABLE_CHANNELS:

		break;

	case VIRTCHNL_OP_ADD_CLOUD_FILTER:

		valid_len = sizeof(struct virtchnl_filter);

		break;

	case VIRTCHNL_OP_DEL_CLOUD_FILTER:

		valid_len = sizeof(struct virtchnl_filter);

		break;

	/* These are always errors coming from the VF. */

	case VIRTCHNL_OP_EVENT:

	case VIRTCHNL_OP_UNKNOWN: