linux-kernel - [PATCH net 2/3] r8152: fix the poor throughput for 2.5G devices

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Message-ID: <20230426122805.23301-402-nic_swsd@realtek.com>
Date:   Wed, 26 Apr 2023 20:28:04 +0800
From:   Hayes Wang <hayeswang@...ltek.com>
To:     <kuba@...nel.org>, <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <nic_swsd@...ltek.com>,
        <linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>,
        Hayes Wang <hayeswang@...ltek.com>
Subject: [PATCH net 2/3] r8152: fix the poor throughput for 2.5G devices

Fix the poor throughput for 2.5G devices, when changing the speed from
auto mode to force mode. This patch is used to notify the MAC when the
mode is changed.

Fixes: 195aae321c82 ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@...ltek.com>
---
 drivers/net/usb/r8152.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 08d1786135f2..3ecd4651ae29 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -7554,6 +7554,11 @@ static void r8156_hw_phy_cfg(struct r8152 *tp)
 				      ((swap_a & 0x1f) << 8) |
 				      ((swap_a >> 8) & 0x1f));
 		}
+
+		/*  set intr_en[3] */
+		data = ocp_reg_read(tp, 0xa424);
+		data |= BIT(3);
+		ocp_reg_write(tp, 0xa424, data);
 		break;
 	default:
 		break;
@@ -7949,6 +7954,11 @@ static void r8156b_hw_phy_cfg(struct r8152 *tp)
 		break;
 	}
 
+	/*  set intr_en[3] */
+	data = ocp_reg_read(tp, 0xa424);
+	data |= BIT(3);
+	ocp_reg_write(tp, 0xa424, data);
+
 	if (rtl_phy_patch_request(tp, true, true))
 		return;
 
-- 
2.40.0