diff mbox series

[net,v3,2/3] r8152: fix the poor throughput for 2.5G devices

Message ID 20230428085331.34550-411-nic_swsd@realtek.com (mailing list archive)
State Accepted
Commit 61b0ad6f58e2066e054c6d4839d67974d2861a7d
Headers show
Series r8152: fix 2.5G devices | expand

Commit Message

Hayes Wang April 28, 2023, 8:53 a.m. UTC 
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@realtek.com>
---
 drivers/net/usb/r8152.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

Comments

Andrew Lunn April 28, 2023, 8:02 p.m. UTC | #1 
On Fri, Apr 28, 2023 at 04:53:30PM +0800, Hayes Wang wrote:
> 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@realtek.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew
diff mbox series

Patch

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index afd50e90d1fe..58670a65b840 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -199,6 +199,7 @@ 
 #define OCP_EEE_AR		0xa41a
 #define OCP_EEE_DATA		0xa41c
 #define OCP_PHY_STATUS		0xa420
+#define OCP_INTR_EN		0xa424
 #define OCP_NCTL_CFG		0xa42c
 #define OCP_POWER_CFG		0xa430
 #define OCP_EEE_CFG		0xa432
@@ -620,6 +621,9 @@  enum spd_duplex {
 #define PHY_STAT_LAN_ON		3
 #define PHY_STAT_PWRDN		5
 
+/* OCP_INTR_EN */
+#define INTR_SPEED_FORCE	BIT(3)
+
 /* OCP_NCTL_CFG */
 #define PGA_RETURN_EN		BIT(1)
 
@@ -7554,6 +7558,11 @@  static void r8156_hw_phy_cfg(struct r8152 *tp)
 				      ((swap_a & 0x1f) << 8) |
 				      ((swap_a >> 8) & 0x1f));
 		}
+
+		/* Notify the MAC when the speed is changed to force mode. */
+		data = ocp_reg_read(tp, OCP_INTR_EN);
+		data |= INTR_SPEED_FORCE;
+		ocp_reg_write(tp, OCP_INTR_EN, data);
 		break;
 	default:
 		break;
@@ -7949,6 +7958,11 @@  static void r8156b_hw_phy_cfg(struct r8152 *tp)
 		break;
 	}
 
+	/* Notify the MAC when the speed is changed to force mode. */
+	data = ocp_reg_read(tp, OCP_INTR_EN);
+	data |= INTR_SPEED_FORCE;
+	ocp_reg_write(tp, OCP_INTR_EN, data);
+
 	if (rtl_phy_patch_request(tp, true, true))
 		return;