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34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
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From 8373a0fe9c7160a55482effa8a3f725efd3f8434 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Wed, 10 Mar 2021 13:51:59 +0100
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Subject: [PATCH] net: dsa: bcm_sf2: use 2 Gbps IMP port link on BCM4908
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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BCM4908 uses 2 Gbps link between switch and the Ethernet interface.
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Without this BCM4908 devices were able to achieve only 2 x ~895 Mb/s.
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This allows handling e.g. NAT traffic with 940 Mb/s.
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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Acked-by: Florian Fainelli <f.fainelli@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/dsa/bcm_sf2.c | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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--- a/drivers/net/dsa/bcm_sf2.c
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+++ b/drivers/net/dsa/bcm_sf2.c
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@@ -70,7 +70,10 @@ static void bcm_sf2_imp_setup(struct dsa
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/* Force link status for IMP port */
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reg = core_readl(priv, offset);
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reg |= (MII_SW_OR | LINK_STS);
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- reg &= ~GMII_SPEED_UP_2G;
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+ if (priv->type == BCM4908_DEVICE_ID)
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+ reg |= GMII_SPEED_UP_2G;
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+ else
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+ reg &= ~GMII_SPEED_UP_2G;
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core_writel(priv, reg, offset);
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/* Enable Broadcast, Multicast, Unicast forwarding to IMP port */
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