net/ice/base: init protocol group table for parser

Parse DDP section ICE_SID_RXPARSER_PROTO_GRP into an array of
ice_proto_grp_item.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Junfeng Guo <junfeng.guo@intel.com>

drivers/net/ice/base/ice_parser.c

@@ -15,6 +15,7 @@
 #define ICE_SID_RXPARSER_BOOST_TCAM_ENTRY_SIZE		88
 #define ICE_SID_RXPARSER_MARKER_TYPE_ENTRY_SIZE		24
 #define ICE_SID_RXPARSER_MARKER_GRP_ENTRY_SIZE		8
+#define ICE_SID_RXPARSER_PROTO_GRP_ENTRY_SIZE		24
 
 #define ICE_SEC_LBL_DATA_OFFSET				2
 #define ICE_SID_LBL_ENTRY_SIZE				66
@@ -80,6 +81,9 @@ void *ice_parser_sect_item_get(u32 sect_type, void *section,
 	case ICE_SID_RXPARSER_MARKER_GRP:
 		size = ICE_SID_RXPARSER_MARKER_GRP_ENTRY_SIZE;
 		break;
+	case ICE_SID_RXPARSER_PROTO_GRP:
+		size = ICE_SID_RXPARSER_PROTO_GRP_ENTRY_SIZE;
+		break;
 	default:
 		return NULL;
 	}
@@ -225,6 +229,12 @@ enum ice_status ice_parser_create(struct ice_hw *hw, struct ice_parser **psr)
 		goto err;
 	}
 
+	p->proto_grp_table = ice_proto_grp_table_get(hw);
+	if (!p->proto_grp_table) {
+		status = ICE_ERR_PARAM;
+		goto err;
+	}
+
 	*psr = p;
 	return ICE_SUCCESS;
 err:
@@ -248,6 +258,7 @@ void ice_parser_destroy(struct ice_parser *psr)
 	ice_free(psr->hw, psr->bst_lbl_table);
 	ice_free(psr->hw, psr->ptype_mk_tcam_table);
 	ice_free(psr->hw, psr->mk_grp_table);
+	ice_free(psr->hw, psr->proto_grp_table);
 
 	ice_free(psr->hw, psr);
 }

drivers/net/ice/base/ice_parser.h

@@ -11,6 +11,7 @@
 #include "ice_bst_tcam.h"
 #include "ice_ptype_mk.h"
 #include "ice_mk_grp.h"
+#include "ice_proto_grp.h"
 
 struct ice_parser {
 	struct ice_hw *hw; /* pointer to the hardware structure */
@@ -35,6 +36,8 @@ struct ice_parser {
 	struct ice_ptype_mk_tcam_item *ptype_mk_tcam_table;
 	/* load data from section ICE_SID_RXPARSER_MARKER_GRP */
 	struct ice_mk_grp_item *mk_grp_table;
+	/* load data from section ICE_SID_RXPARSER_PROTO_GRP */
+	struct ice_proto_grp_item *proto_grp_table;
 };
 
 enum ice_status ice_parser_create(struct ice_hw *hw, struct ice_parser **psr);

drivers/net/ice/base/ice_proto_grp.c

@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2001-2021 Intel Corporation
+ */
+
+#include "ice_common.h"
+#include "ice_parser_util.h"
+
+#define ICE_PROTO_GRP_TABLE_SIZE 192
+
+static void _proto_off_dump(struct ice_hw *hw, struct ice_proto_off *po,
+			    int idx)
+{
+	ice_info(hw, "proto %d\n", idx);
+	ice_info(hw, "\tpolarity = %d\n", po->polarity);
+	ice_info(hw, "\tproto_id = %d\n", po->proto_id);
+	ice_info(hw, "\toffset = %d\n", po->offset);
+}
+
+/**
+ * ice_proto_grp_dump - dump a proto group item info
+ * @ice_hw: pointer to the hardware structure
+ * @item: proto group item to dump
+ */
+void ice_proto_grp_dump(struct ice_hw *hw, struct ice_proto_grp_item *item)
+{
+	int i;
+
+	ice_info(hw, "index = %d\n", item->idx);
+
+	for (i = 0; i < ICE_PROTO_COUNT_PER_GRP; i++)
+		_proto_off_dump(hw, &item->po[i], i);
+}
+
+/** The function parses a 22 bits Protocol entry with below format:
+ *  BIT 0:	Polarity of Protocol Offset (po->polarity)
+ *  BIT 1-8:	Protocol ID (po->proto_id)
+ *  BIT 9-11:	reserved
+ *  BIT 12-21:	Protocol Offset (po->offset)
+ */
+static void _proto_off_parse(struct ice_proto_off *po, u32 data)
+{
+	po->polarity = (data & 0x1) != 0;
+	po->proto_id = (u8)((data >> 1) & 0xff);
+	po->offset = (u16)((data >> 12) & 0x3ff);
+}
+
+/** The function parses a 192 bits Protocol Group Table entry with below
+ *  format:
+ *  BIT 0-21:	Protocol 0 (grp->po[0])
+ *  BIT 22-43:	Protocol 1 (grp->po[1])
+ *  BIT 44-65:	Protocol 2 (grp->po[2])
+ *  BIT 66-87:	Protocol 3 (grp->po[3])
+ *  BIT 88-109:	Protocol 4 (grp->po[4])
+ *  BIT 110-131:Protocol 5 (grp->po[5])
+ *  BIT 132-153:Protocol 6 (grp->po[6])
+ *  BIT 154-175:Protocol 7 (grp->po[7])
+ *  BIT 176-191:reserved
+ */
+static void _proto_grp_parse_item(struct ice_hw *hw, u16 idx, void *item,
+				  void *data, int size)
+{
+	struct ice_proto_grp_item *grp = (struct ice_proto_grp_item *)item;
+	u8 *buf = (u8 *)data;
+	u32 d32;
+
+	grp->idx = idx;
+
+	d32 = *(u32 *)buf;
+	_proto_off_parse(&grp->po[0], d32);
+
+	d32 = (*(u32 *)&buf[2] >> 6);
+	_proto_off_parse(&grp->po[1], d32);
+
+	d32 = (*(u32 *)&buf[5] >> 4);
+	_proto_off_parse(&grp->po[2], d32);
+
+	d32 = (*(u32 *)&buf[8] >> 2);
+	_proto_off_parse(&grp->po[3], d32);
+
+	d32 = *(u32 *)&buf[11];
+	_proto_off_parse(&grp->po[4], d32);
+
+	d32 = (*(u32 *)&buf[13] >> 6);
+	_proto_off_parse(&grp->po[5], d32);
+
+	d32 = (*(u32 *)&buf[16] >> 4);
+	_proto_off_parse(&grp->po[6], d32);
+
+	d32 = (*(u32 *)&buf[19] >> 2);
+	_proto_off_parse(&grp->po[7], d32);
+
+	if (hw->debug_mask & ICE_DBG_PARSER)
+		ice_proto_grp_dump(hw, grp);
+}
+
+/**
+ * ice_proto_grp_table_get - create a proto group table
+ * @ice_hw: pointer to the hardware structure
+ */
+struct ice_proto_grp_item *ice_proto_grp_table_get(struct ice_hw *hw)
+{
+	return (struct ice_proto_grp_item *)
+		ice_parser_create_table(hw, ICE_SID_RXPARSER_PROTO_GRP,
+					sizeof(struct ice_proto_grp_item),
+					ICE_PROTO_GRP_TABLE_SIZE,
+					ice_parser_sect_item_get,
+					_proto_grp_parse_item, false);
+}

drivers/net/ice/base/ice_proto_grp.h

@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2001-2021 Intel Corporation
+ */
+
+#ifndef _ICE_PROTO_GRP_H_
+#define _ICE_PROTO_GRP_H_
+
+#define ICE_PROTO_COUNT_PER_GRP 8
+
+struct ice_proto_off {
+	bool polarity; /* true: positive, false: nagtive */
+	u8 proto_id;
+	u16 offset;
+};
+
+struct ice_proto_grp_item {
+	u16 idx;
+	struct ice_proto_off po[ICE_PROTO_COUNT_PER_GRP];
+};
+
+void ice_proto_grp_dump(struct ice_hw *hw, struct ice_proto_grp_item *item);
+struct ice_proto_grp_item *ice_proto_grp_table_get(struct ice_hw *hw);
+#endif /* _ICE_PROTO_GRP_H_ */

drivers/net/ice/base/meson.build

@@ -22,6 +22,7 @@ sources = [
         'ice_bst_tcam.c',
         'ice_ptype_mk.c',
         'ice_mk_grp.c',
+        'ice_proto_grp.c',
 ]
 
 error_cflags = [