From patchwork Fri Mar 21 09:26:02 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jamin Lin X-Patchwork-Id: 14025085 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D3324C36000 for ; Fri, 21 Mar 2025 09:31:05 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tvYeR-0006TM-Vw; Fri, 21 Mar 2025 05:26:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tvYeL-0006L4-R8; Fri, 21 Mar 2025 05:26:46 -0400 Received: from mail.aspeedtech.com ([211.20.114.72] helo=TWMBX01.aspeed.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tvYeJ-00056m-Oi; Fri, 21 Mar 2025 05:26:44 -0400 Received: from TWMBX01.aspeed.com (192.168.0.62) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.12; Fri, 21 Mar 2025 17:26:25 +0800 Received: from mail.aspeedtech.com (192.168.10.10) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server id 15.2.1258.12 via Frontend Transport; Fri, 21 Mar 2025 17:26:25 +0800 To: =?utf-8?q?C=C3=A9dric_Le_Goater?= , Peter Maydell , Steven Lee , Troy Lee , Andrew Jeffery , "Joel Stanley" , Fabiano Rosas , Laurent Vivier , Paolo Bonzini , "open list:ASPEED BMCs" , "open list:All patches CC here" CC: , Subject: [PATCH v1 06/22] hw/misc/aspeed_hace: Support accumulative mode for direct access mode Date: Fri, 21 Mar 2025 17:26:02 +0800 Message-ID: <20250321092623.2097234-7-jamin_lin@aspeedtech.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250321092623.2097234-1-jamin_lin@aspeedtech.com> References: <20250321092623.2097234-1-jamin_lin@aspeedtech.com> MIME-Version: 1.0 Received-SPF: pass client-ip=211.20.114.72; envelope-from=jamin_lin@aspeedtech.com; helo=TWMBX01.aspeed.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_FAIL=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jamin Lin X-Patchwork-Original-From: Jamin Lin via From: Jamin Lin Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Enable accumulative mode for direct access mode operations. In direct access mode, only a single source buffer is used, so the "iovec" count is set to 1. If "acc_mode" is enabled: 1. Accumulate "total_req_len" with the current request length ("plen"). 2. Check for padding and determine whether this is the final request. Signed-off-by: Jamin Lin --- hw/misc/aspeed_hace.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/hw/misc/aspeed_hace.c b/hw/misc/aspeed_hace.c index 8cf3f194a5..d06158dffd 100644 --- a/hw/misc/aspeed_hace.c +++ b/hw/misc/aspeed_hace.c @@ -223,8 +223,21 @@ static void do_hash_operation(AspeedHACEState *s, int algo, bool sg_mode, return; } iov[0].iov_base = haddr; - iov[0].iov_len = plen; i = 1; + if (acc_mode) { + s->total_req_len += plen; + + if (has_padding(s, &iov[0], plen, &total_msg_len, + &pad_offset)) { + /* Padding being present indicates the final request */ + sg_acc_mode_final_request = true; + iov[0].iov_len = pad_offset; + } else { + iov[0].iov_len = plen; + } + } else { + iov[0].iov_len = plen; + } } if (acc_mode) {