From nobody Sun Feb 8 15:25:20 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1576816077; cv=none; d=zohomail.com; s=zohoarc; b=fXsIMRUunM58rc7oaaG6XLh8IAx3BjJjz2uJK2GZPzLc8no6psf7PvFkEvip+bRzw8ZhIcriqyfSmPTfOYYdKUXneOYlVROYto/KTipNmUnE28TsyCjRiig3f4T0KVqPIWuSLxdLtYP0YOP9if9fHeYYKdKo3LmSv88YrA3sh9Y= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1576816077; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=gFaAlDoVXRsA3/Uie50UUzvWBWjcfJK/0e8XgRn1AIw=; b=nOlxipBqYR26BVJ51kbGdhS1V7kxp3aQabOr3Yj92P+xkwz4WIiCi2GlGvMHvTwWfMakDXw5/+0sNLraILXyo0WgHGaRzEk28V5FCghBDeiWyUXsA3ZRgpTDi6kjqjPP7bP8EwGDahqENZZdlF2X1+3YOo56vW/ncIsezkN3Bac= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1576816077916878.1149021110884; Thu, 19 Dec 2019 20:27:57 -0800 (PST) Received: from localhost ([::1]:50578 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ii9tM-0000i3-Ae for importer@patchew.org; Thu, 19 Dec 2019 23:27:56 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:59723) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ii9o0-0000b8-Gh for qemu-devel@nongnu.org; Thu, 19 Dec 2019 23:22:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ii9nz-0003Oi-DT for qemu-devel@nongnu.org; Thu, 19 Dec 2019 23:22:24 -0500 Received: from kvm5.telegraphics.com.au ([98.124.60.144]:34446) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ii9nz-00020J-8I; Thu, 19 Dec 2019 23:22:23 -0500 Received: by kvm5.telegraphics.com.au (Postfix, from userid 502) id D5C2C28D4F; Thu, 19 Dec 2019 23:22:02 -0500 (EST) To: Jason Wang , qemu-devel@nongnu.org Message-Id: In-Reply-To: References: From: Finn Thain Subject: [PATCH v2 11/13] dp8393x: Clear descriptor in_use field when necessary Date: Fri, 20 Dec 2019 15:17:46 +1100 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 98.124.60.144 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aleksandar Rikalo , =?UTF-8?q?Herv=C3=A9=20Poussineau?= , Laurent Vivier , qemu-stable@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This is in accordance with section 3.4.7 of the datasheet: When the system appends more descriptors, the SONIC releases ownership of the descriptor after writing 0000h to the RXpkt.in_use field. Signed-off-by: Finn Thain --- hw/net/dp8393x.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c index f35b8b48aa..6b69cca329 100644 --- a/hw/net/dp8393x.c +++ b/hw/net/dp8393x.c @@ -806,6 +806,15 @@ static ssize_t dp8393x_receive(NetClientState *nc, con= st uint8_t * buf, return -1; } /* Link has been updated by host */ + + /* Clear in_use */ + size =3D sizeof(uint16_t) * width; + address =3D dp8393x_crda(s) + sizeof(uint16_t) * 6 * width; + dp8393x_put(s, width, 0, 0); + address_space_rw(&s->as, address, MEMTXATTRS_UNSPECIFIED, + (uint8_t *)s->data, size, 1); + + /* Move to next descriptor */ s->regs[SONIC_CRDA] =3D s->regs[SONIC_LLFA]; } =20 --=20 2.23.0