From patchwork Mon Jul 17 17:16:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 13316040 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 2271BEB64DC for ; Mon, 17 Jul 2023 17:21:32 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qLRuY-00048T-SY; Mon, 17 Jul 2023 13:21:26 -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 1qLRuV-00041R-9P for qemu-devel@nongnu.org; Mon, 17 Jul 2023 13:21:23 -0400 Received: from frasgout.his.huawei.com ([185.176.79.56]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qLRuT-00059i-RA for qemu-devel@nongnu.org; Mon, 17 Jul 2023 13:21:23 -0400 Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.207]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4R4TKb5xw2z67YXJ; Tue, 18 Jul 2023 01:17:23 +0800 (CST) Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Mon, 17 Jul 2023 18:21:19 +0100 To: , Dan Williams , CC: , Alison Schofield , Ira Weiny , Dave Jiang , Davidlohr Bueso , Viacheslav Dubeyko , Shesha Bhushan Sreenivasamurthy , Fan Ni , Michael Tsirkin , Jonathan Zhang , Klaus Jensen Subject: [RFC PATCH 09/17] i2c/mctp: Allow receiving messages to dest eid 0 Date: Mon, 17 Jul 2023 18:16:38 +0100 Message-ID: <20230717171646.8972-10-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230717171646.8972-1-Jonathan.Cameron@huawei.com> References: <20230717171646.8972-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhrpeml500004.china.huawei.com (7.191.163.9) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: Jonathan Cameron X-Patchwork-Original-From: Jonathan Cameron via From: Jonathan Cameron Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Matt Johnston The Null Destination ID, 0, is used for MCTP control messages when addressing by physical ID. That is used for Get Endpoint ID and Set Endpoint ID when querying/assigning an EID to an endpoint. Signed-off-by: Matt Johnston Signed-off-by: Jonathan Cameron --- hw/i2c/mctp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/i2c/mctp.c b/hw/i2c/mctp.c index 0f4045d0d6..db42dc7226 100644 --- a/hw/i2c/mctp.c +++ b/hw/i2c/mctp.c @@ -242,7 +242,8 @@ static int i2c_mctp_event_cb(I2CSlave *i2c, enum i2c_event event) goto drop; } - if (pkt->mctp.hdr.eid.dest != mctp->my_eid) { + if (!(pkt->mctp.hdr.eid.dest == mctp->my_eid || + pkt->mctp.hdr.eid.dest == 0)) { trace_i2c_mctp_drop_invalid_eid(pkt->mctp.hdr.eid.dest, mctp->my_eid); goto drop;