ice: enable FDIR filters from raw binary patterns for VFs

Enable VFs to create FDIR filters from raw binary patterns.
The corresponding processes for raw flow are added in the
Parse / Create / Destroy stages.
Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
Co-developed-by: Ahmed Zaki <ahmed.zaki@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/ice/ice_flex_pipe.c

@@ -4145,6 +4145,54 @@ ice_add_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl)
 	return status;
 }
 
+/**
+ * ice_flow_assoc_fdir_prof - add an FDIR profile for main/ctrl VSI
+ * @hw: pointer to the HW struct
+ * @blk: HW block
+ * @dest_vsi: dest VSI
+ * @fdir_vsi: fdir programming VSI
+ * @hdl: profile handle
+ *
+ * Update the hardware tables to enable the FDIR profile indicated by @hdl for
+ * the VSI specified by @dest_vsi. On success, the flow will be enabled.
+ *
+ * Return: 0 on success or negative errno on failure.
+ */
+int
+ice_flow_assoc_fdir_prof(struct ice_hw *hw, enum ice_block blk,
+			 u16 dest_vsi, u16 fdir_vsi, u64 hdl)
+{
+	u16 vsi_num;
+	int status;
+
+	if (blk != ICE_BLK_FD)
+		return -EINVAL;
+
+	vsi_num = ice_get_hw_vsi_num(hw, dest_vsi);
+	status = ice_add_prof_id_flow(hw, blk, vsi_num, hdl);
+	if (status) {
+		ice_debug(hw, ICE_DBG_FLOW, "Adding HW profile failed for main VSI flow entry: %d\n",
+			  status);
+		return status;
+	}
+
+	vsi_num = ice_get_hw_vsi_num(hw, fdir_vsi);
+	status = ice_add_prof_id_flow(hw, blk, vsi_num, hdl);
+	if (status) {
+		ice_debug(hw, ICE_DBG_FLOW, "Adding HW profile failed for ctrl VSI flow entry: %d\n",
+			  status);
+		goto err;
+	}
+
+	return 0;
+
+err:
+	vsi_num = ice_get_hw_vsi_num(hw, dest_vsi);
+	ice_rem_prof_id_flow(hw, blk, vsi_num, hdl);
+
+	return status;
+}
+
 /**
  * ice_rem_prof_from_list - remove a profile from list
  * @hw: pointer to the HW struct

drivers/net/ethernet/intel/ice/ice_flex_pipe.h

@@ -51,6 +51,9 @@ int
 ice_add_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl);
 int
 ice_rem_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl);
+int
+ice_flow_assoc_fdir_prof(struct ice_hw *hw, enum ice_block blk,
+			 u16 dest_vsi, u16 fdir_vsi, u64 hdl);
 enum ice_ddp_state ice_init_pkg(struct ice_hw *hw, u8 *buff, u32 len);
 enum ice_ddp_state
 ice_copy_and_init_pkg(struct ice_hw *hw, const u8 *buf, u32 len);

drivers/net/ethernet/intel/ice/ice_flow.c

@@ -409,6 +409,29 @@ static const u32 ice_ptypes_gtpc_tid[] = {
 };
 
 /* Packet types for GTPU */
+static const struct ice_ptype_attributes ice_attr_gtpu_session[] = {
+	{ ICE_MAC_IPV4_GTPU_IPV4_FRAG,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV4_GTPU_IPV4_PAY,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV4_GTPU_IPV4_TCP,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV4_GTPU_IPV4_ICMP,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV6_GTPU_IPV4_FRAG,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV6_GTPU_IPV4_PAY,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV6_GTPU_IPV4_TCP,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV6_GTPU_IPV4_ICMP,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV4_GTPU_IPV6_FRAG,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV4_GTPU_IPV6_PAY,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV4_GTPU_IPV6_TCP,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV4_GTPU_IPV6_ICMPV6,  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV6_GTPU_IPV6_FRAG,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV6_GTPU_IPV6_PAY,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV6_GTPU_IPV6_TCP,	  ICE_PTYPE_ATTR_GTP_SESSION },
+	{ ICE_MAC_IPV6_GTPU_IPV6_ICMPV6,  ICE_PTYPE_ATTR_GTP_SESSION },
+};
+
 static const struct ice_ptype_attributes ice_attr_gtpu_eh[] = {
 	{ ICE_MAC_IPV4_GTPU_IPV4_FRAG,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
 	{ ICE_MAC_IPV4_GTPU_IPV4_PAY,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
@@ -1523,6 +1546,90 @@ ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk,
 	return status;
 }
 
+#define FLAG_GTP_EH_PDU_LINK	BIT_ULL(13)
+#define FLAG_GTP_EH_PDU		BIT_ULL(14)
+
+#define HI_BYTE_IN_WORD		GENMASK(15, 8)
+#define LO_BYTE_IN_WORD		GENMASK(7, 0)
+
+#define FLAG_GTPU_MSK	\
+	(FLAG_GTP_EH_PDU | FLAG_GTP_EH_PDU_LINK)
+#define FLAG_GTPU_UP	\
+	(FLAG_GTP_EH_PDU | FLAG_GTP_EH_PDU_LINK)
+#define FLAG_GTPU_DW	FLAG_GTP_EH_PDU
+
+/**
+ * ice_flow_set_parser_prof - Set flow profile based on the parsed profile info
+ * @hw: pointer to the HW struct
+ * @dest_vsi: dest VSI
+ * @fdir_vsi: fdir programming VSI
+ * @prof: stores parsed profile info from raw flow
+ * @blk: classification blk
+ *
+ * Return: 0 on success or negative errno on failure.
+ */
+int
+ice_flow_set_parser_prof(struct ice_hw *hw, u16 dest_vsi, u16 fdir_vsi,
+			 struct ice_parser_profile *prof, enum ice_block blk)
+{
+	u64 id = find_first_bit(prof->ptypes, ICE_FLOW_PTYPE_MAX);
+	struct ice_flow_prof_params *params __free(kfree);
+	u8 fv_words = hw->blk[blk].es.fvw;
+	int status;
+	int i, idx;
+
+	params = kzalloc(sizeof(*params), GFP_KERNEL);
+	if (!params)
+		return -ENOMEM;
+
+	for (i = 0; i < ICE_MAX_FV_WORDS; i++) {
+		params->es[i].prot_id = ICE_PROT_INVALID;
+		params->es[i].off = ICE_FV_OFFSET_INVAL;
+	}
+
+	for (i = 0; i < prof->fv_num; i++) {
+		if (hw->blk[blk].es.reverse)
+			idx = fv_words - i - 1;
+		else
+			idx = i;
+		params->es[idx].prot_id = prof->fv[i].proto_id;
+		params->es[idx].off = prof->fv[i].offset;
+		params->mask[idx] = (((prof->fv[i].msk) << BITS_PER_BYTE) &
+				      HI_BYTE_IN_WORD) |
+				    (((prof->fv[i].msk) >> BITS_PER_BYTE) &
+				      LO_BYTE_IN_WORD);
+	}
+
+	switch (prof->flags) {
+	case FLAG_GTPU_DW:
+		params->attr = ice_attr_gtpu_down;
+		params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_down);
+		break;
+	case FLAG_GTPU_UP:
+		params->attr = ice_attr_gtpu_up;
+		params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_up);
+		break;
+	default:
+		if (prof->flags_msk & FLAG_GTPU_MSK) {
+			params->attr = ice_attr_gtpu_session;
+			params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_session);
+		}
+		break;
+	}
+
+	status = ice_add_prof(hw, blk, id, (u8 *)prof->ptypes,
+			      params->attr, params->attr_cnt,
+			      params->es, params->mask, false, false);
+	if (status)
+		return status;
+
+	status = ice_flow_assoc_fdir_prof(hw, blk, dest_vsi, fdir_vsi, id);
+	if (status)
+		ice_rem_prof(hw, blk, id);
+
+	return status;
+}
+
 /**
  * ice_flow_add_prof - Add a flow profile for packet segments and matched fields
  * @hw: pointer to the HW struct

drivers/net/ethernet/intel/ice/ice_flow.h

@@ -5,6 +5,7 @@
 #define _ICE_FLOW_H_
 
 #include "ice_flex_type.h"
+#include "ice_parser.h"
 
 #define ICE_FLOW_ENTRY_HANDLE_INVAL	0
 #define ICE_FLOW_FLD_OFF_INVAL		0xffff
@@ -326,6 +327,7 @@ enum ice_rss_cfg_hdr_type {
 	ICE_RSS_ANY_HEADERS
 };
 
+struct ice_vsi;
 struct ice_rss_hash_cfg {
 	u32 addl_hdrs; /* protocol header fields */
 	u64 hash_flds; /* hash bit field (ICE_FLOW_HASH_*) to configure */
@@ -445,6 +447,9 @@ ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir,
 		  bool symm, struct ice_flow_prof **prof);
 int ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id);
 int
+ice_flow_set_parser_prof(struct ice_hw *hw, u16 dest_vsi, u16 fdir_vsi,
+			 struct ice_parser_profile *prof, enum ice_block blk);
+int
 ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
 		   u64 entry_id, u16 vsi, enum ice_flow_priority prio,
 		   void *data, u64 *entry_h);

drivers/net/ethernet/intel/ice/ice_vf_lib.h

@@ -12,6 +12,7 @@
 #include <net/devlink.h>
 #include <linux/avf/virtchnl.h>
 #include "ice_type.h"
+#include "ice_flow.h"
 #include "ice_virtchnl_fdir.h"
 #include "ice_vsi_vlan_ops.h"
 
@@ -52,6 +53,12 @@ struct ice_mdd_vf_events {
 	u16 last_printed;
 };
 
+/* Structure to store fdir fv entry */
+struct ice_fdir_prof_info {
+	struct ice_parser_profile prof;
+	u64 fdir_active_cnt;
+};
+
 /* VF operations */
 struct ice_vf_ops {
 	enum ice_disq_rst_src reset_type;
@@ -91,6 +98,7 @@ struct ice_vf {
 	u16 lan_vsi_idx;		/* index into PF struct */
 	u16 ctrl_vsi_idx;
 	struct ice_vf_fdir fdir;
+	struct ice_fdir_prof_info fdir_prof_info[ICE_MAX_PTGS];
 	/* first vector index of this VF in the PF space */
 	int first_vector_idx;
 	struct ice_sw *vf_sw_id;	/* switch ID the VF VSIs connect to */