/* 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); }