From: Jiawen Wu <jiawenwu@trustnetic.com>
To: dev@dpdk.org
Cc: Jiawen Wu <jiawenwu@trustnetic.com>, stable@dpdk.org
Subject: [PATCH 04/11] net/ngbe: prevent the NIC from slowing down link speed
Date: Thu, 28 Sep 2023 17:47:51 +0800 [thread overview]
Message-ID: <20230928094758.1076236-5-jiawenwu@trustnetic.com> (raw)
In-Reply-To: <20230928094758.1076236-1-jiawenwu@trustnetic.com>
When the signal quality is bad, the internal PHY may slow down to 100M.
Fix this weird behavior by setting dis fall 100M bit.
Fixes: 696a82117875 ("net/ngbe: redesign internal PHY init flow")
Cc: stable@dpdk.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
---
drivers/net/ngbe/base/ngbe_phy_rtl.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/ngbe/base/ngbe_phy_rtl.c b/drivers/net/ngbe/base/ngbe_phy_rtl.c
index b0eb6c97c0..ba63a8058a 100644
--- a/drivers/net/ngbe/base/ngbe_phy_rtl.c
+++ b/drivers/net/ngbe/base/ngbe_phy_rtl.c
@@ -148,6 +148,11 @@ s32 ngbe_init_phy_rtl(struct ngbe_hw *hw)
hw->phy.write_reg(hw, 27, 0xa42, 0x8011);
hw->phy.write_reg(hw, 28, 0xa42, 0x5737);
+ /* Disable fall to 100m if signal is not good */
+ hw->phy.read_reg(hw, 17, 0xa44, &value);
+ value &= ~0x8;
+ hw->phy.write_reg(hw, 17, 0xa44, value);
+
hw->phy.write_reg(hw, RTL_SCR, 0xa46, RTL_SCR_EXTINI);
hw->phy.read_reg(hw, RTL_SCR, 0xa46, &value);
if (!(value & RTL_SCR_EXTINI)) {
--
2.27.0
next prev parent reply other threads:[~2023-09-28 9:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20230928094758.1076236-1-jiawenwu@trustnetic.com>
2023-09-28 9:47 ` [PATCH 01/11] net/txgbe: add Tx queue maximum limit Jiawen Wu
2023-09-28 9:47 ` [PATCH 02/11] net/txgbe: fix GRE tunnel packet checksum Jiawen Wu
2023-09-28 9:47 ` [PATCH 03/11] net/ngbe: fix to set flow control Jiawen Wu
2023-09-28 9:47 ` Jiawen Wu [this message]
2023-09-28 9:47 ` [PATCH 05/11] net/txgbe: reconfigure MAC Rx when link update Jiawen Wu
2023-09-28 9:47 ` [PATCH 06/11] net/ngbe: " Jiawen Wu
2023-09-28 9:47 ` [PATCH 07/11] net/txgbe: fix to keep link down after device close Jiawen Wu
2023-09-28 9:47 ` [PATCH 08/11] net/ngbe: " Jiawen Wu
2023-09-28 9:47 ` [PATCH 09/11] net/txgbe: check process type in close operation Jiawen Wu
2023-09-28 9:47 ` [PATCH 10/11] net/ngbe: " Jiawen Wu
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