From patchwork Wed Apr 3 09:29:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksij Rempel X-Patchwork-Id: 13615604 X-Patchwork-Delegate: kuba@kernel.org Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 91784134759 for ; Wed, 3 Apr 2024 09:29:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712136559; cv=none; b=Q4+4BkFdl1iWpFYPpYOh6uEdmOpDVhAKLEUZOGH0estiRZwcQRBwPWZ1mWLljHKxIjZlXKewz/KMUwLKYtJvSc69slpUOst6UtgJ4Vq64bP12W1V/ERw42kdBpCv+ZMylZhQM4OjvXzpQt2p8fTW1MqTBoZlMZIU+JJKoqZBuNo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712136559; c=relaxed/simple; bh=ddcfCgdQFQCl9ntcaGBqipKTdLGwvIQjBNqhEUKAgAQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=IL288/20iqOWQ7RkShjGVpgByV00P1QxQMOHzBKN+tn5U8OWvKDDWTiaDmRdugiFwRyO0InU81Hunkt7wXf2YCfiPE8BMJmeoPrPCYFW6MK+IcuXlRrSn87EmjjCoLCNghzlD7XVUR1uTP78wVFY39bA+FJBsHOXrHZRrZ90bOY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de 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 ) id 1rrwvc-0005CN-Nm; Wed, 03 Apr 2024 11:29:08 +0200 Received: from [2a0a:edc0:0:1101:1d::ac] (helo=dude04.red.stw.pengutronix.de) 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 ) id 1rrwva-00A9Hw-D4; Wed, 03 Apr 2024 11:29:06 +0200 Received: from ore by dude04.red.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1rrwva-008qIE-0z; Wed, 03 Apr 2024 11:29:06 +0200 From: Oleksij Rempel To: "David S. Miller" , Andrew Lunn , Eric Dumazet , Florian Fainelli , Jakub Kicinski , Paolo Abeni , Vladimir Oltean , Woojung Huh , Arun Ramadoss Cc: Oleksij Rempel , kernel@pengutronix.de, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, UNGLinuxDriver@microchip.com, David Ahern , Simon Horman , Willem de Bruijn , =?utf-8?q?S=C3=B8ren_Andersen?= Subject: [PATCH net-next v2 8/9] net: dsa: microchip: init predictable IPV to queue mapping for all non KSZ8xxx variants Date: Wed, 3 Apr 2024 11:29:04 +0200 Message-Id: <20240403092905.2107522-9-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240403092905.2107522-1-o.rempel@pengutronix.de> References: <20240403092905.2107522-1-o.rempel@pengutronix.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Init priority to queue mapping in the way as it shown in IEEE 802.1Q mapping example. Signed-off-by: Oleksij Rempel --- changes v2: - s/ksz_set_default_prio_queue_mapping/ksz9477_set_default_prio_queue_mapping - remove error on queue < 0. --- drivers/net/dsa/microchip/ksz_common.c | 57 +++++++++++++++----------- 1 file changed, 33 insertions(+), 24 deletions(-) diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c index 08426f85f7707..3dec90cfaf5de 100644 --- a/drivers/net/dsa/microchip/ksz_common.c +++ b/drivers/net/dsa/microchip/ksz_common.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -2692,9 +2693,33 @@ static int ksz_port_mdb_del(struct dsa_switch *ds, int port, return dev->dev_ops->mdb_del(dev, port, mdb, db); } +static int ksz9477_set_default_prio_queue_mapping(struct ksz_device *dev, + int port) +{ + u32 queue_map = 0; + int ipv; + + for (ipv = 0; ipv < dev->info->max_ipvs; ipv++) { + int queue; + + /* Traffic Type (TT) is corresponding to the Internal Priority + * Value (IPV) in the switch. Traffic Class (TC) is + * corresponding to the queue in the switch. + */ + queue = ieee8021q_tt_to_tc(ipv, dev->info->num_tx_queues); + if (queue < 0) + return queue; + + queue_map |= queue << (ipv * KSZ9477_PORT_TC_MAP_S); + } + + return ksz_pwrite32(dev, port, KSZ9477_PORT_MRI_TC_MAP__4, queue_map); +} + static int ksz_port_setup(struct dsa_switch *ds, int port) { struct ksz_device *dev = ds->priv; + int ret; if (!dsa_is_user_port(ds, port)) return 0; @@ -2702,6 +2727,12 @@ static int ksz_port_setup(struct dsa_switch *ds, int port) /* setup user port */ dev->dev_ops->port_setup(dev, port, false); + if (!is_ksz8(dev)) { + ret = ksz9477_set_default_prio_queue_mapping(dev, port); + if (ret) + return ret; + } + /* port_stp_state_set() will be called after to enable the port so * there is no need to do anything. */ @@ -3566,8 +3597,7 @@ static int ksz_tc_ets_add(struct ksz_device *dev, int port, static int ksz_tc_ets_del(struct ksz_device *dev, int port) { - int ret, queue, tc_prio, s; - u32 queue_map = 0; + int ret, queue; /* To restore the default chip configuration, set all queues to use the * WRR scheduler with a weight of 1. @@ -3579,31 +3609,10 @@ static int ksz_tc_ets_del(struct ksz_device *dev, int port) return ret; } - switch (dev->info->num_tx_queues) { - case 2: - s = 2; - break; - case 4: - s = 1; - break; - case 8: - s = 0; - break; - default: - return -EINVAL; - } - /* Revert the queue mapping for TC-priority to its default setting on * the chip. */ - for (tc_prio = 0; tc_prio < dev->info->max_ipvs; tc_prio++) { - int queue; - - queue = tc_prio >> s; - queue_map |= queue << (tc_prio * KSZ9477_PORT_TC_MAP_S); - } - - return ksz_pwrite32(dev, port, KSZ9477_PORT_MRI_TC_MAP__4, queue_map); + return ksz9477_set_default_prio_queue_mapping(dev, port); } static int ksz_tc_ets_validate(struct ksz_device *dev, int port,