Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2021-03-22

This series contains updates to ice and iavf drivers.

Haiyue Wang says:

The Intel E810 Series supports a programmable pipeline for a domain
specific protocols classification, for example GTP by Dynamic Device
Personalization (DDP) profile.

The E810 PF has introduced flex-bytes support by ethtool user-def option
allowing for packet deeper matching based on an offset and value for DDP
usage.

For making VF also benefit from this flexible protocol classification,
some new virtchnl messages are defined and handled by PF, so VF can
query this new flow director capability, and use ethtool with extending
the user-def option to configure Rx flow classification.

The new user-def 0xAAAABBBBCCCCDDDD: BBBB is the 2 byte pattern while
AAAA corresponds to its offset in the packet. Similarly DDDD is the 2
byte pattern with CCCC being the corresponding offset. The offset ranges
from 0x0 to 0x1F7 (up to 504 bytes into the packet). The offset starts
from the beginning of the packet.

This feature can be used to allow customers to set flow director rules
for protocols headers that are beyond standard ones supported by
ethtool (e.g. PFCP or GTP-U).

Like for matching GTP-U's TEID value 0x10203040:
ethtool -N ens787f0v0 flow-type udp4 dst-port 2152 \
    user-def 0x002e102000303040 action 13
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 278 insertions, 0 deletions

diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h
index 40bad71865ea..47482049f640 100644
--- a/include/linux/avf/virtchnl.h
+++ b/include/linux/avf/virtchnl.h
@@ -136,6 +136,9 @@ enum virtchnl_ops {
 	VIRTCHNL_OP_DISABLE_CHANNELS = 31,
 	VIRTCHNL_OP_ADD_CLOUD_FILTER = 32,
 	VIRTCHNL_OP_DEL_CLOUD_FILTER = 33,
+	/* opcode 34 - 46 are reserved */
+	VIRTCHNL_OP_ADD_FDIR_FILTER = 47,
+	VIRTCHNL_OP_DEL_FDIR_FILTER = 48,
 };
 
 /* These macros are used to generate compilation errors if a structure/union
@@ -247,6 +250,7 @@ VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vsi_resource);
 #define VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM		0X00200000
 #define VIRTCHNL_VF_OFFLOAD_RX_ENCAP_CSUM	0X00400000
 #define VIRTCHNL_VF_OFFLOAD_ADQ			0X00800000
+#define VIRTCHNL_VF_OFFLOAD_FDIR_PF		0X10000000
 
 /* Define below the capability flags that are not offloads */
 #define VIRTCHNL_VF_CAP_ADV_LINK_SPEED		0x00000080
@@ -559,6 +563,11 @@ enum virtchnl_action {
 	/* action types */
 	VIRTCHNL_ACTION_DROP = 0,
 	VIRTCHNL_ACTION_TC_REDIRECT,
+	VIRTCHNL_ACTION_PASSTHRU,
+	VIRTCHNL_ACTION_QUEUE,
+	VIRTCHNL_ACTION_Q_REGION,
+	VIRTCHNL_ACTION_MARK,
+	VIRTCHNL_ACTION_COUNT,
 };
 
 enum virtchnl_flow_type {
@@ -668,6 +677,269 @@ enum virtchnl_vfr_states {
 	VIRTCHNL_VFR_VFACTIVE,
 };
 
+#define VIRTCHNL_MAX_NUM_PROTO_HDRS	32
+#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)
+
+/* VF use these macros to configure each protocol header.
+ * Specify which protocol headers and protocol header fields base on
+ * virtchnl_proto_hdr_type and virtchnl_proto_hdr_field.
+ * @param hdr: a struct of virtchnl_proto_hdr
+ * @param hdr_type: ETH/IPV4/TCP, etc
+ * @param field: SRC/DST/TEID/SPI, etc
+ */
+#define VIRTCHNL_ADD_PROTO_HDR_FIELD(hdr, field) \
+	((hdr)->field_selector |= BIT((field) & PROTO_HDR_FIELD_MASK))
+#define VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr, field) \
+	((hdr)->field_selector &= ~BIT((field) & PROTO_HDR_FIELD_MASK))
+#define VIRTCHNL_TEST_PROTO_HDR_FIELD(hdr, val) \
+	((hdr)->field_selector & BIT((val) & PROTO_HDR_FIELD_MASK))
+#define VIRTCHNL_GET_PROTO_HDR_FIELD(hdr)	((hdr)->field_selector)
+
+#define VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, hdr_type, field) \
+	(VIRTCHNL_ADD_PROTO_HDR_FIELD(hdr, \
+		VIRTCHNL_PROTO_HDR_ ## hdr_type ## _ ## field))
+#define VIRTCHNL_DEL_PROTO_HDR_FIELD_BIT(hdr, hdr_type, field) \
+	(VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr, \
+		VIRTCHNL_PROTO_HDR_ ## hdr_type ## _ ## field))
+
+#define VIRTCHNL_SET_PROTO_HDR_TYPE(hdr, hdr_type) \
+	((hdr)->type = VIRTCHNL_PROTO_HDR_ ## hdr_type)
+#define VIRTCHNL_GET_PROTO_HDR_TYPE(hdr) \
+	(((hdr)->type) >> PROTO_HDR_SHIFT)
+#define VIRTCHNL_TEST_PROTO_HDR_TYPE(hdr, val) \
+	((hdr)->type == ((val) >> PROTO_HDR_SHIFT))
+#define VIRTCHNL_TEST_PROTO_HDR(hdr, val) \
+	(VIRTCHNL_TEST_PROTO_HDR_TYPE((hdr), (val)) && \
+	 VIRTCHNL_TEST_PROTO_HDR_FIELD((hdr), (val)))
+
+/* Protocol header type within a packet segment. A segment consists of one or
+ * more protocol headers that make up a logical group of protocol headers. Each
+ * logical group of protocol headers encapsulates or is encapsulated using/by
+ * tunneling or encapsulation protocols for network virtualization.
+ */
+enum virtchnl_proto_hdr_type {
+	VIRTCHNL_PROTO_HDR_NONE,
+	VIRTCHNL_PROTO_HDR_ETH,
+	VIRTCHNL_PROTO_HDR_S_VLAN,
+	VIRTCHNL_PROTO_HDR_C_VLAN,
+	VIRTCHNL_PROTO_HDR_IPV4,
+	VIRTCHNL_PROTO_HDR_IPV6,
+	VIRTCHNL_PROTO_HDR_TCP,
+	VIRTCHNL_PROTO_HDR_UDP,
+	VIRTCHNL_PROTO_HDR_SCTP,
+	VIRTCHNL_PROTO_HDR_GTPU_IP,
+	VIRTCHNL_PROTO_HDR_GTPU_EH,
+	VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN,
+	VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP,
+	VIRTCHNL_PROTO_HDR_PPPOE,
+	VIRTCHNL_PROTO_HDR_L2TPV3,
+	VIRTCHNL_PROTO_HDR_ESP,
+	VIRTCHNL_PROTO_HDR_AH,
+	VIRTCHNL_PROTO_HDR_PFCP,
+};
+
+/* Protocol header field within a protocol header. */
+enum virtchnl_proto_hdr_field {
+	/* ETHER */
+	VIRTCHNL_PROTO_HDR_ETH_SRC =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_ETH),
+	VIRTCHNL_PROTO_HDR_ETH_DST,
+	VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE,
+	/* S-VLAN */
+	VIRTCHNL_PROTO_HDR_S_VLAN_ID =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_S_VLAN),
+	/* C-VLAN */
+	VIRTCHNL_PROTO_HDR_C_VLAN_ID =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_C_VLAN),
+	/* IPV4 */
+	VIRTCHNL_PROTO_HDR_IPV4_SRC =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV4),
+	VIRTCHNL_PROTO_HDR_IPV4_DST,
+	VIRTCHNL_PROTO_HDR_IPV4_DSCP,
+	VIRTCHNL_PROTO_HDR_IPV4_TTL,
+	VIRTCHNL_PROTO_HDR_IPV4_PROT,
+	/* IPV6 */
+	VIRTCHNL_PROTO_HDR_IPV6_SRC =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV6),
+	VIRTCHNL_PROTO_HDR_IPV6_DST,
+	VIRTCHNL_PROTO_HDR_IPV6_TC,
+	VIRTCHNL_PROTO_HDR_IPV6_HOP_LIMIT,
+	VIRTCHNL_PROTO_HDR_IPV6_PROT,
+	/* TCP */
+	VIRTCHNL_PROTO_HDR_TCP_SRC_PORT =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_TCP),
+	VIRTCHNL_PROTO_HDR_TCP_DST_PORT,
+	/* UDP */
+	VIRTCHNL_PROTO_HDR_UDP_SRC_PORT =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_UDP),
+	VIRTCHNL_PROTO_HDR_UDP_DST_PORT,
+	/* SCTP */
+	VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_SCTP),
+	VIRTCHNL_PROTO_HDR_SCTP_DST_PORT,
+	/* GTPU_IP */
+	VIRTCHNL_PROTO_HDR_GTPU_IP_TEID =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPU_IP),
+	/* GTPU_EH */
+	VIRTCHNL_PROTO_HDR_GTPU_EH_PDU =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPU_EH),
+	VIRTCHNL_PROTO_HDR_GTPU_EH_QFI,
+	/* PPPOE */
+	VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_PPPOE),
+	/* L2TPV3 */
+	VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_L2TPV3),
+	/* ESP */
+	VIRTCHNL_PROTO_HDR_ESP_SPI =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_ESP),
+	/* AH */
+	VIRTCHNL_PROTO_HDR_AH_SPI =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_AH),
+	/* PFCP */
+	VIRTCHNL_PROTO_HDR_PFCP_S_FIELD =
+		PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_PFCP),
+	VIRTCHNL_PROTO_HDR_PFCP_SEID,
+};
+
+struct virtchnl_proto_hdr {
+	enum virtchnl_proto_hdr_type type;
+	u32 field_selector; /* a bit mask to select field for header type */
+	u8 buffer[64];
+	/**
+	 * binary buffer in network order for specific header type.
+	 * For example, if type = VIRTCHNL_PROTO_HDR_IPV4, a IPv4
+	 * header is expected to be copied into the buffer.
+	 */
+};
+
+VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_proto_hdr);
+
+struct virtchnl_proto_hdrs {
+	u8 tunnel_level;
+	/**
+	 * specify where protocol header start from.
+	 * 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];
+};
+
+VIRTCHNL_CHECK_STRUCT_LEN(2312, virtchnl_proto_hdrs);
+
+/* action configuration for FDIR */
+struct virtchnl_filter_action {
+	enum virtchnl_action type;
+	union {
+		/* used for queue and qgroup action */
+		struct {
+			u16 index;
+			u8 region;
+		} queue;
+		/* used for count action */
+		struct {
+			/* share counter ID with other flow rules */
+			u8 shared;
+			u32 id; /* counter ID */
+		} count;
+		/* used for mark action */
+		u32 mark_id;
+		u8 reserve[32];
+	} act_conf;
+};
+
+VIRTCHNL_CHECK_STRUCT_LEN(36, virtchnl_filter_action);
+
+#define VIRTCHNL_MAX_NUM_ACTIONS  8
+
+struct virtchnl_filter_action_set {
+	/* action number must be less then VIRTCHNL_MAX_NUM_ACTIONS */
+	int count;
+	struct virtchnl_filter_action actions[VIRTCHNL_MAX_NUM_ACTIONS];
+};
+
+VIRTCHNL_CHECK_STRUCT_LEN(292, virtchnl_filter_action_set);
+
+/* pattern and action for FDIR rule */
+struct virtchnl_fdir_rule {
+	struct virtchnl_proto_hdrs proto_hdrs;
+	struct virtchnl_filter_action_set action_set;
+};
+
+VIRTCHNL_CHECK_STRUCT_LEN(2604, virtchnl_fdir_rule);
+
+/* Status returned to VF after VF requests FDIR commands
+ * VIRTCHNL_FDIR_SUCCESS
+ * VF FDIR related request is successfully done by PF
+ * The request can be OP_ADD/DEL.
+ *
+ * VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE
+ * OP_ADD_FDIR_FILTER request is failed due to no Hardware resource.
+ *
+ * VIRTCHNL_FDIR_FAILURE_RULE_EXIST
+ * OP_ADD_FDIR_FILTER request is failed due to the rule is already existed.
+ *
+ * VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT
+ * OP_ADD_FDIR_FILTER request is failed due to conflict with existing rule.
+ *
+ * VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST
+ * OP_DEL_FDIR_FILTER request is failed due to this rule doesn't exist.
+ *
+ * VIRTCHNL_FDIR_FAILURE_RULE_INVALID
+ * OP_ADD_FDIR_FILTER request is failed due to parameters validation
+ * or HW doesn't support.
+ *
+ * VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT
+ * OP_ADD/DEL_FDIR_FILTER request is failed due to timing out
+ * for programming.
+ */
+enum virtchnl_fdir_prgm_status {
+	VIRTCHNL_FDIR_SUCCESS = 0,
+	VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE,
+	VIRTCHNL_FDIR_FAILURE_RULE_EXIST,
+	VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT,
+	VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST,
+	VIRTCHNL_FDIR_FAILURE_RULE_INVALID,
+	VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT,
+};
+
+/* VIRTCHNL_OP_ADD_FDIR_FILTER
+ * VF sends this request to PF by filling out vsi_id,
+ * validate_only and rule_cfg. PF will return flow_id
+ * if the request is successfully done and return add_status to VF.
+ */
+struct virtchnl_fdir_add {
+	u16 vsi_id;  /* INPUT */
+	/*
+	 * 1 for validating a fdir rule, 0 for creating a fdir rule.
+	 * Validate and create share one ops: VIRTCHNL_OP_ADD_FDIR_FILTER.
+	 */
+	u16 validate_only; /* INPUT */
+	u32 flow_id;       /* OUTPUT */
+	struct virtchnl_fdir_rule rule_cfg; /* INPUT */
+	enum virtchnl_fdir_prgm_status status; /* OUTPUT */
+};
+
+VIRTCHNL_CHECK_STRUCT_LEN(2616, virtchnl_fdir_add);
+
+/* VIRTCHNL_OP_DEL_FDIR_FILTER
+ * VF sends this request to PF by filling out vsi_id
+ * and flow_id. PF will return del_status to VF.
+ */
+struct virtchnl_fdir_del {
+	u16 vsi_id;  /* INPUT */
+	u16 pad;
+	u32 flow_id; /* INPUT */
+	enum virtchnl_fdir_prgm_status status; /* OUTPUT */
+};
+
+VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_fdir_del);
+
 /**
  * virtchnl_vc_validate_vf_msg
  * @ver: Virtchnl version info
@@ -828,6 +1100,12 @@ virtchnl_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode,
 	case VIRTCHNL_OP_DEL_CLOUD_FILTER:
 		valid_len = sizeof(struct virtchnl_filter);
 		break;
+	case VIRTCHNL_OP_ADD_FDIR_FILTER:
+		valid_len = sizeof(struct virtchnl_fdir_add);
+		break;
+	case VIRTCHNL_OP_DEL_FDIR_FILTER:
+		valid_len = sizeof(struct virtchnl_fdir_del);
+		break;
 	/* These are always errors coming from the VF. */
 	case VIRTCHNL_OP_EVENT:
 	case VIRTCHNL_OP_UNKNOWN: