From patchwork Wed Jan 29 09:27:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Finn Thain X-Patchwork-Id: 1230763 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=telegraphics.com.au 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 ozlabs.org (Postfix) with ESMTPS id 486yzG69SXz9sRR for ; Wed, 29 Jan 2020 20:36:10 +1100 (AEDT) Received: from localhost ([::1]:43240 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iwjlY-0003gG-IH for incoming@patchwork.ozlabs.org; Wed, 29 Jan 2020 04:36:08 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:51419) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iwjl4-0003bW-2N for qemu-devel@nongnu.org; Wed, 29 Jan 2020 04:35:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iwjl2-0000ka-2s for qemu-devel@nongnu.org; Wed, 29 Jan 2020 04:35:37 -0500 Received: from kvm5.telegraphics.com.au ([98.124.60.144]:50072) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1iwjl1-0000kD-Uz; Wed, 29 Jan 2020 04:35:36 -0500 Received: by kvm5.telegraphics.com.au (Postfix, from userid 502) id 7BD39299C1; Wed, 29 Jan 2020 04:35:35 -0500 (EST) To: Jason Wang , qemu-devel@nongnu.org Message-Id: In-Reply-To: References: From: Finn Thain Subject: [PATCH v4 06/14] dp8393x: Clear RRRA command register bit only when appropriate MIME-Version: 1.0 Date: Wed, 29 Jan 2020 20:27:49 +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: =?utf-8?q?Herv=C3=A9_Poussineau?= , Aleksandar Rikalo , =?utf-8?q?Philippe_M?= =?utf-8?q?athieu-Daud=C3=A9?= , Laurent Vivier , qemu-stable@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" It doesn't make sense to clear the command register bit unless the command was actually issued. Signed-off-by: Finn Thain Reviewed-by: Philippe Mathieu-Daudé Tested-by: Laurent Vivier --- hw/net/dp8393x.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c index 249be403af..2e976781e2 100644 --- a/hw/net/dp8393x.c +++ b/hw/net/dp8393x.c @@ -352,9 +352,6 @@ static void dp8393x_do_read_rra(dp8393xState *s) s->regs[SONIC_ISR] |= SONIC_ISR_RBE; dp8393x_update_irq(s); } - - /* Done */ - s->regs[SONIC_CR] &= ~SONIC_CR_RRRA; } static void dp8393x_do_software_reset(dp8393xState *s) @@ -563,8 +560,10 @@ static void dp8393x_do_command(dp8393xState *s, uint16_t command) dp8393x_do_start_timer(s); if (command & SONIC_CR_RST) dp8393x_do_software_reset(s); - if (command & SONIC_CR_RRRA) + if (command & SONIC_CR_RRRA) { dp8393x_do_read_rra(s); + s->regs[SONIC_CR] &= ~SONIC_CR_RRRA; + } if (command & SONIC_CR_LCAM) dp8393x_do_load_cam(s); }