From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Fainelli Subject: [RFC net-next 4/8] net: dsa: bcm_sf2: Configure IMP port TC2QOS mapping Date: Wed, 30 Aug 2017 17:18:48 -0700 Message-ID: <1504138732-65383-5-git-send-email-f.fainelli@gmail.com> References: <1504138732-65383-1-git-send-email-f.fainelli@gmail.com> Cc: jiri@resnulli.us, jhs@mojatatu.com, davem@davemloft.net, xiyou.wangcong@gmail.com, andrew@lunn.ch, vivien.didelot@savoirfairelinux.com, Florian Fainelli To: netdev@vger.kernel.org Return-path: Received: from mail-wm0-f66.google.com ([74.125.82.66]:35446 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750814AbdHaA06 (ORCPT ); Wed, 30 Aug 2017 20:26:58 -0400 Received: by mail-wm0-f66.google.com with SMTP id e204so3360649wma.2 for ; Wed, 30 Aug 2017 17:26:58 -0700 (PDT) In-Reply-To: <1504138732-65383-1-git-send-email-f.fainelli@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: Even though TC2QOS mapping is for switch egress queues, we need to configure it correclty in order for the Broadcom tag ingress (CPU -> switch) queue selection to work correctly since there is a 1:1 mapping between switch egress queues and ingress queues. Signed-off-by: Florian Fainelli --- drivers/net/dsa/bcm_sf2.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index 3f1ad9d5d7c5..fc9f9f171e55 100644 --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -103,6 +103,7 @@ static void bcm_sf2_brcm_hdr_setup(struct bcm_sf2_priv *priv, int port) static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port) { struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds); + unsigned int i; u32 reg, offset; if (priv->type == BCM7445_DEVICE_ID) @@ -129,6 +130,14 @@ static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port) reg |= MII_DUMB_FWDG_EN; core_writel(priv, reg, CORE_SWITCH_CTRL); + /* Configure Traffic Class to QoS mapping, allow each priority to map + * to a different queue number + */ + reg = core_readl(priv, CORE_PORT_TC2_QOS_MAP_PORT(port)); + for (i = 0; i < 8; i++) + reg |= i << (PRT_TO_QID_SHIFT * i); + core_writel(priv, reg, CORE_PORT_TC2_QOS_MAP_PORT(port)); + bcm_sf2_brcm_hdr_setup(priv, port); /* Force link status for IMP port */ -- 1.9.1