From patchwork Tue Nov 8 00:39:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenghua Yu X-Patchwork-Id: 13035568 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 498FEC43219 for ; Tue, 8 Nov 2022 00:39:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233071AbiKHAjy (ORCPT ); Mon, 7 Nov 2022 19:39:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233029AbiKHAjx (ORCPT ); Mon, 7 Nov 2022 19:39:53 -0500 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7FB8913F69; Mon, 7 Nov 2022 16:39:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1667867992; x=1699403992; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Cm9CtBgkoGZKBtJj3uuA4OFX4WUziYGRZEOrJwPTybs=; b=mGWrUtRzzm/rFPi10c8mAwwKnf0pUpFetNeXcPTXS7ua+qrOzcW2+8f9 CcK8jtw18ow1XBqF30u9DKBUyQPJMsHd82aiWs7fUdzWEzBtqvCa5u3e7 /o7ngxVjKyhrNs+vbkHw8KsJA7SUzzDvF87TcB4+WR8YsZJqLWRxE5W+L zUhEyO3IwNpAEvGlM7YUdqdXBxzluK6+zy0T3UMo4ckLGRAPzgRFz8i22 /6HkqDoN2NYDeS0qwei/U5fuFmSwmEpba/YZCX90SUsUNPRpmEmnfRWiY OChtyY+2w2K1yJ0W49YO2xJHYKfV0RJMoDcktTIQNgoPPnBA0qcKVCYQq g==; X-IronPort-AV: E=McAfee;i="6500,9779,10524"; a="374833336" X-IronPort-AV: E=Sophos;i="5.96,145,1665471600"; d="scan'208";a="374833336" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Nov 2022 16:39:51 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10524"; a="811041354" X-IronPort-AV: E=Sophos;i="5.96,145,1665471600"; d="scan'208";a="811041354" Received: from fyu1.sc.intel.com ([172.25.103.126]) by orsmga005.jf.intel.com with ESMTP; 07 Nov 2022 16:39:50 -0800 From: Fenghua Yu To: "Vinod Koul" , "Dave Jiang" Cc: dmaengine@vger.kernel.org, "linux-kernel" , Fenghua Yu Subject: [PATCH 2/3] dmaengine: idxd: Add descriptor definitions for DIX generate operation Date: Mon, 7 Nov 2022 16:39:43 -0800 Message-Id: <20221108003944.2095567-3-fenghua.yu@intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20221108003944.2095567-1-fenghua.yu@intel.com> References: <20221108003944.2095567-1-fenghua.yu@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org The Data Integrity Extension (DIX) generate operation (0x17) computes the Data Integrity Field (DIF) on the source data and writes only the computed DIF for each source block to the PI destination address. Add descriptor definitions for this operation so that user can use DSA to accelerate DIX generate operation. Signed-off-by: Fenghua Yu Reviewed-by: Dave Jiang --- include/uapi/linux/idxd.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/include/uapi/linux/idxd.h b/include/uapi/linux/idxd.h index 04a2f6411820..34294d99c1cb 100644 --- a/include/uapi/linux/idxd.h +++ b/include/uapi/linux/idxd.h @@ -77,6 +77,7 @@ enum dsa_opcode { DSA_OPCODE_DIF_INS, DSA_OPCODE_DIF_STRP, DSA_OPCODE_DIF_UPDT, + DSA_OPCODE_DIX_GEN = 0x17, DSA_OPCODE_CFLUSH = 0x20, }; @@ -249,6 +250,17 @@ struct dsa_hw_desc { uint64_t pattern_upper; }; + /* DIX generate */ + struct { + uint8_t dix_gen_res; + uint8_t dest_dif_flags; + uint8_t dif_flags; + uint8_t dix_gen_res2[13]; + uint32_t ref_tag_seed; + uint16_t app_tag_mask; + uint16_t app_tag_seed; + }; + uint8_t op_specific[24]; }; } __attribute__((packed)); @@ -327,6 +339,14 @@ struct dsa_completion_record { uint16_t dif_upd_dest_app_tag; }; + /* DIX generate */ + struct { + uint64_t dix_gen_res; + uint32_t dix_ref_tag; + uint16_t dix_app_tag_mask; + uint16_t dix_app_tag; + }; + uint8_t op_specific[16]; }; } __attribute__((packed));