Message ID | 20240731-rockchip-canfd-v2-8-d9604c5b4be8@pengutronix.de (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 74C15C3DA7F for <linux-arm-kernel@archiver.kernel.org>; Wed, 31 Jul 2024 09:42:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XncJZQ7OKXnB/SysUxLfHbPiabbVjtzlWBVLjsZ4HYA=; b=e/3ZoPFmj0jzMB3Mu26BhgEekY MKtBra+ntO1icFDz3C4dIhmbJx+LLzmxvDOu2N6/vANSmJ9LLxEjYtVKTv8qv5tNfjvYCp/bZuFdF WwTk2vakC6gjWlXUJ/0kCTixyTNZ0koqOyZfx1mTc/iisKVGLZQK5UVj2oR8SGP4UhZon7QhB5zQ0 DmN7iOLmTaWqQCq+SIsUmA3/A9Quq1ryUsBG0Nlbhp3128/uE1za923JKQq8RryVGlA6TqWOeCwIV rZGHya8BU8j7mI1EsWFrxxLNHemFva6vfZCqF7jAy0vqVRETlB9Gs+cR29yjZhrMy89N1LLZoP9/H 4Onw5QtQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sZ5qO-00000000Ytv-2PAP; Wed, 31 Jul 2024 09:42:04 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sZ5mU-00000000XGW-3QQz for linux-arm-kernel@bombadil.infradead.org; Wed, 31 Jul 2024 09:38:02 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Cc:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Sender:Reply-To:Content-ID:Content-Description; bh=XncJZQ7OKXnB/SysUxLfHbPiabbVjtzlWBVLjsZ4HYA=; b=ZAoRYgcgv7HMwYGgm1YvNpCe6C Gnvz3STtDrS0NaU1stsk13hO3gf0VZ1bzX7XiStEuKyo5oQQX9PDWMNENdn5YMCIVgxcWubPB/B1w FGA9L6SdOQKvVZt66n1t4XKB2kZ/uWE0cLmwlBqqebZ+E9eriUE5Nxke/5JDDKyn/yjSwm95f8qm2 gE7tYBX8ozpyaQ2KC9ab3BdIe5nxadCuccm+/CglWH/EEJcBo/57CGvKnYWVmH/oO6RzelQoGSUOQ O7hTh7XtYjoAd0MWPF5ZKVCmI3H29ssN9IBGZTdkXy54dS7lKlsbkyAsQXCB1J1He9mhGdixYgXic BAy7K9DQ==; Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by desiato.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sZ5mR-00000005BO4-1cZz for linux-arm-kernel@lists.infradead.org; Wed, 31 Jul 2024 09:38:01 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from <mkl@pengutronix.de>) id 1sZ5mP-0005cA-VL for linux-arm-kernel@lists.infradead.org; Wed, 31 Jul 2024 11:37:57 +0200 Received: from [2a0a:edc0:0:b01:1d::7b] (helo=bjornoya.blackshift.org) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from <mkl@pengutronix.de>) id 1sZ5mM-003Ukv-UD for linux-arm-kernel@lists.infradead.org; Wed, 31 Jul 2024 11:37:54 +0200 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id 7CA8E312864 for <linux-arm-kernel@lists.infradead.org>; Wed, 31 Jul 2024 09:37:54 +0000 (UTC) Received: from hardanger.blackshift.org (unknown [172.20.34.65]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by bjornoya.blackshift.org (Postfix) with ESMTPS id 2C86D31280B; Wed, 31 Jul 2024 09:37:51 +0000 (UTC) Received: from [172.20.34.65] (localhost [::1]) by hardanger.blackshift.org (OpenSMTPD) with ESMTP id 06dbfc81; Wed, 31 Jul 2024 09:37:42 +0000 (UTC) From: Marc Kleine-Budde <mkl@pengutronix.de> Date: Wed, 31 Jul 2024 11:37:10 +0200 Subject: [PATCH can-next v2 08/20] can: rockchip_canfd: add notes about known issues MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20240731-rockchip-canfd-v2-8-d9604c5b4be8@pengutronix.de> References: <20240731-rockchip-canfd-v2-0-d9604c5b4be8@pengutronix.de> In-Reply-To: <20240731-rockchip-canfd-v2-0-d9604c5b4be8@pengutronix.de> To: kernel@pengutronix.de, Vincent Mailhol <mailhol.vincent@wanadoo.fr>, "David S. 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Series |
an: rockchip_canfd: add support for CAN-FD IP core found on Rockchip RK3568
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expand
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diff --git a/drivers/net/can/rockchip/rockchip_canfd.h b/drivers/net/can/rockchip/rockchip_canfd.h index 9b446331fbd0..3dafb5e68dc5 100644 --- a/drivers/net/can/rockchip/rockchip_canfd.h +++ b/drivers/net/can/rockchip/rockchip_canfd.h @@ -370,6 +370,26 @@ */ #define RKCANFD_QUIRK_CANFD_BROKEN BIT(12) +/* known issues with rk3568v3: + * + * - Overload situation during high bus load + * To reproduce: + * host: + * # add a 2nd CAN adapter to the CAN bus + * cangen can0 -I 1 -Li -Di -p10 -g 0.3 + * cansequence -rve + * DUT: + * cangen can0 -I2 -L1 -Di -p10 -c10 -g 1 -e + * cansequence -rv -i 1 + * + * - TX starvation after repeated Bus-Off + * To reproduce: + * host: + * sleep 3 && cangen can0 -I2 -Li -Di -p10 -g 0.0 + * DUT: + * cangen can0 -I2 -Li -Di -p10 -g 0.05 + */ + enum rkcanfd_model { RKCANFD_MODEL_RK3568V2 = 0x35682, RKCANFD_MODEL_RK3568V3 = 0x35683,
Even the rk3568v3 has some known issues. Document them together with a reproducer. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> --- drivers/net/can/rockchip/rockchip_canfd.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)