From patchwork Wed Aug 23 09:31:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Guo, Junfeng" X-Patchwork-Id: 13361948 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B6975C124 for ; Wed, 23 Aug 2023 09:33:04 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BA24C272B for ; Wed, 23 Aug 2023 02:33:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1692783182; x=1724319182; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=7NI0c1Wfuj/LYqrEnvCEufY2tS1g4s8hS42RUAcXI0c=; b=FLX+9Tm9wdvX3ptGPMBshJDGM1RYQCH3Tdl8cHbXpyKL6VufF5qGMJ3T rbMe7rhXbfA0n6N24W9gYC3w2JuoeBeENStlJbBzes0bvzgKVmw9Dr/QV 7TAFmI6CfKxeQnHZDdKV3FVJ+A7brksdXe8oTr5XG5jBaLzzQlV0EXQ/N Fhwyr9d1VEPFIY2T0PadwICgvJFNMjBqdr8zryt3776WkKmxUUfIVz6In hX7A9t+LdduSAFTcrwsJm5XkeXydy38Bp7ISqF0wy5a5Cw1czMRUlKceb mVQIMOLOpmIAGgLT6MJ5FBD2Y1B6fSqqaENcioqFTe5s3o4ezHloU4jg4 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10810"; a="359100674" X-IronPort-AV: E=Sophos;i="6.01,195,1684825200"; d="scan'208";a="359100674" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Aug 2023 02:32:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10810"; a="713507645" X-IronPort-AV: E=Sophos;i="6.01,195,1684825200"; d="scan'208";a="713507645" Received: from dpdk-jf-ntb-v2.sh.intel.com ([10.67.119.19]) by orsmga006.jf.intel.com with ESMTP; 23 Aug 2023 02:32:47 -0700 From: Junfeng Guo To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, qi.z.zhang@intel.com, ivecera@redhat.com, sridhar.samudrala@intel.com, horms@kernel.org, Junfeng Guo Subject: [PATCH iwl-next v7 15/15] ice: add API for parser profile initialization Date: Wed, 23 Aug 2023 17:31:58 +0800 Message-Id: <20230823093158.782802-16-junfeng.guo@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230823093158.782802-1-junfeng.guo@intel.com> References: <20230821081438.2937934-1-junfeng.guo@intel.com> <20230823093158.782802-1-junfeng.guo@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE, SPF_NONE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org Add API ice_parser_profile_init to init a parser profile base on a parser result and a mask buffer. The ice_parser_profile can feed to low level FXP engine to create HW profile / field vector directly. Signed-off-by: Junfeng Guo --- drivers/net/ethernet/intel/ice/ice_parser.c | 114 ++++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_parser.h | 27 +++++ 2 files changed, 141 insertions(+) diff --git a/drivers/net/ethernet/intel/ice/ice_parser.c b/drivers/net/ethernet/intel/ice/ice_parser.c index 85a2833ffc58..7a4cf7e9da57 100644 --- a/drivers/net/ethernet/intel/ice/ice_parser.c +++ b/drivers/net/ethernet/intel/ice/ice_parser.c @@ -446,3 +446,117 @@ int ice_parser_ecpri_tunnel_set(struct ice_parser *psr, { return _ice_tunnel_port_set(psr, "TNL_UDP_ECPRI", udp_port, on); } + +static bool _ice_nearest_proto_id(struct ice_parser_result *rslt, u16 offset, + u8 *proto_id, u16 *proto_off) +{ + u16 dist = U16_MAX; + u8 proto = 0; + int i; + + for (i = 0; i < rslt->po_num; i++) { + if (offset < rslt->po[i].offset) + continue; + if (offset - rslt->po[i].offset < dist) { + proto = rslt->po[i].proto_id; + dist = offset - rslt->po[i].offset; + } + } + + if (dist % 2) + return false; + + *proto_id = proto; + *proto_off = dist; + + return true; +} + +/** default flag mask to cover GTP_EH_PDU, GTP_EH_PDU_LINK and TUN2 + * In future, the flag masks should learn from DDP + */ +#define ICE_KEYBUILD_FLAG_MASK_DEFAULT_SW 0x4002 +#define ICE_KEYBUILD_FLAG_MASK_DEFAULT_ACL 0x0000 +#define ICE_KEYBUILD_FLAG_MASK_DEFAULT_FD 0x6080 +#define ICE_KEYBUILD_FLAG_MASK_DEFAULT_RSS 0x6010 + +/** + * ice_parser_profile_init - initialize a FXP profile base on parser result + * @rslt: a instance of a parser result + * @pkt_buf: packet data buffer + * @msk_buf: packet mask buffer + * @buf_len: packet length + * @blk: FXP pipeline stage + * @prefix_match: match protocol stack exactly or only prefix + * @prof: input/output parameter to save the profile + */ +int ice_parser_profile_init(struct ice_parser_result *rslt, + const u8 *pkt_buf, const u8 *msk_buf, + int buf_len, enum ice_block blk, + bool prefix_match, + struct ice_parser_profile *prof) +{ + u8 proto_id = U8_MAX; + u16 proto_off = 0; + u16 off; + + memset(prof, 0, sizeof(*prof)); + set_bit(rslt->ptype, prof->ptypes); + if (blk == ICE_BLK_SW) { + prof->flags = rslt->flags_sw; + prof->flags_msk = ICE_KEYBUILD_FLAG_MASK_DEFAULT_SW; + } else if (blk == ICE_BLK_ACL) { + prof->flags = rslt->flags_acl; + prof->flags_msk = ICE_KEYBUILD_FLAG_MASK_DEFAULT_ACL; + } else if (blk == ICE_BLK_FD) { + prof->flags = rslt->flags_fd; + prof->flags_msk = ICE_KEYBUILD_FLAG_MASK_DEFAULT_FD; + } else if (blk == ICE_BLK_RSS) { + prof->flags = rslt->flags_rss; + prof->flags_msk = ICE_KEYBUILD_FLAG_MASK_DEFAULT_RSS; + } else { + return -EINVAL; + } + + for (off = 0; off < buf_len - 1; off++) { + if (msk_buf[off] == 0 && msk_buf[off + 1] == 0) + continue; + if (!_ice_nearest_proto_id(rslt, off, &proto_id, &proto_off)) + continue; + if (prof->fv_num >= ICE_PARSER_FV_MAX) + return -EINVAL; + + prof->fv[prof->fv_num].proto_id = proto_id; + prof->fv[prof->fv_num].offset = proto_off; + prof->fv[prof->fv_num].spec = *(const u16 *)&pkt_buf[off]; + prof->fv[prof->fv_num].msk = *(const u16 *)&msk_buf[off]; + prof->fv_num++; + } + + return 0; +} + +/** + * ice_parser_profile_dump - dump an FXP profile info + * @hw: pointer to the hardware structure + * @prof: profile info to dump + */ +void ice_parser_profile_dump(struct ice_hw *hw, + struct ice_parser_profile *prof) +{ + u16 i; + + dev_info(ice_hw_to_dev(hw), "ptypes:\n"); + for (i = 0; i < ICE_FLOW_PTYPE_MAX; i++) + if (test_bit(i, prof->ptypes)) + dev_info(ice_hw_to_dev(hw), "\t%d\n", i); + + for (i = 0; i < prof->fv_num; i++) + dev_info(ice_hw_to_dev(hw), + "proto = %d, offset = %2d; spec = 0x%04x, mask = 0x%04x\n", + prof->fv[i].proto_id, prof->fv[i].offset, + prof->fv[i].spec, prof->fv[i].msk); + + dev_info(ice_hw_to_dev(hw), "flags = 0x%04x\n", prof->flags); + dev_info(ice_hw_to_dev(hw), "flags_msk = 0x%04x\n", prof->flags_msk); +} diff --git a/drivers/net/ethernet/intel/ice/ice_parser.h b/drivers/net/ethernet/intel/ice/ice_parser.h index 3cfcec4dc477..503c610b5c92 100644 --- a/drivers/net/ethernet/intel/ice/ice_parser.h +++ b/drivers/net/ethernet/intel/ice/ice_parser.h @@ -33,6 +33,8 @@ #define ICE_SID_LBL_ENTRY_SIZE 66 #define ICE_PARSER_PROTO_OFF_PAIR_SIZE 16 +#define ICE_PARSER_FV_SIZE 48 +#define ICE_PARSER_FV_MAX 24 #define ICE_BT_TUN_PORT_OFF_H 16 #define ICE_BT_TUN_PORT_OFF_L 15 #define ICE_UDP_PORT_OFF_H 1 @@ -110,4 +112,29 @@ struct ice_parser_result { int ice_parser_run(struct ice_parser *psr, const u8 *pkt_buf, int pkt_len, struct ice_parser_result *rslt); void ice_parser_result_dump(struct ice_hw *hw, struct ice_parser_result *rslt); + +struct ice_parser_fv { + u8 proto_id; /* hardware protocol ID */ + u16 offset; /* offset from the start of the protocol header */ + u16 spec; /* 16 bits pattern to match */ + u16 msk; /* 16 bits pattern mask */ +}; + +struct ice_parser_profile { + /* array of field vectors */ + struct ice_parser_fv fv[ICE_PARSER_FV_SIZE]; + int fv_num; /* # of field vectors must <= 48 */ + u16 flags; /* 16 bits key builder flags */ + u16 flags_msk; /* key builder flag mask */ + + DECLARE_BITMAP(ptypes, ICE_FLOW_PTYPE_MAX); /* PTYPE bitmap */ +}; + +int ice_parser_profile_init(struct ice_parser_result *rslt, + const u8 *pkt_buf, const u8 *msk_buf, + int buf_len, enum ice_block blk, + bool prefix_match, + struct ice_parser_profile *prof); +void ice_parser_profile_dump(struct ice_hw *hw, + struct ice_parser_profile *prof); #endif /* _ICE_PARSER_H_ */