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[net] r8169: fix jumbo packet handling on RTL8168e

Message ID b15ddef7-0d50-4320-18f4-6a3f86fbfd3e@gmail.com
State New
Headers show
Series [net] r8169: fix jumbo packet handling on RTL8168e | expand

Commit Message

Heiner Kallweit Feb. 25, 2021, 3:05 p.m. UTC
Josef reported [0] that using jumbo packets fails on RTL8168e.
Aligning the values for register MaxTxPacketSize with the
vendor driver fixes the problem.

[0] https://bugzilla.kernel.org/show_bug.cgi?id=211827

Fixes: d58d46b5d851 ("r8169: jumbo fixes.")
Reported-by: Josef Oškera <joskera@redhat.com>
Tested-by: Josef Oškera <joskera@redhat.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/net/ethernet/realtek/r8169_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

patchwork-bot+netdevbpf@kernel.org Feb. 25, 2021, 6 p.m. UTC | #1
Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Thu, 25 Feb 2021 16:05:19 +0100 you wrote:
> Josef reported [0] that using jumbo packets fails on RTL8168e.
> Aligning the values for register MaxTxPacketSize with the
> vendor driver fixes the problem.
> 
> [0] https://bugzilla.kernel.org/show_bug.cgi?id=211827
> 
> Fixes: d58d46b5d851 ("r8169: jumbo fixes.")
> Reported-by: Josef Oškera <joskera@redhat.com>
> Tested-by: Josef Oškera <joskera@redhat.com>
> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
> 
> [...]

Here is the summary with links:
  - [net] r8169: fix jumbo packet handling on RTL8168e
    https://git.kernel.org/netdev/net/c/6cf739131a15

You are awesome, thank you!
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diff mbox series

Patch

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index e7a59dc5f..35b015c9a 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -2317,14 +2317,14 @@  static void r8168dp_hw_jumbo_disable(struct rtl8169_private *tp)
 
 static void r8168e_hw_jumbo_enable(struct rtl8169_private *tp)
 {
-	RTL_W8(tp, MaxTxPacketSize, 0x3f);
+	RTL_W8(tp, MaxTxPacketSize, 0x24);
 	RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
 	RTL_W8(tp, Config4, RTL_R8(tp, Config4) | 0x01);
 }
 
 static void r8168e_hw_jumbo_disable(struct rtl8169_private *tp)
 {
-	RTL_W8(tp, MaxTxPacketSize, 0x0c);
+	RTL_W8(tp, MaxTxPacketSize, 0x3f);
 	RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
 	RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~0x01);
 }