git.ipfire.org Git - thirdparty/openwrt.git/blob

   1 From 473367a5ffe1607a61be481e2feda684eb5faea9 Mon Sep 17 00:00:00 2001
   2 From: Heiner Kallweit <hkallweit1@gmail.com>
   3 Date: Fri, 7 Mar 2025 08:29:47 +0100
   4 Subject: [PATCH] r8169: increase max jumbo packet size on RTL8125/RTL8126
   5
   6 Realtek confirmed that all RTL8125/RTL8126 chip versions support up to
   7 16K jumbo packets. Reflect this in the driver.
   8
   9 Tested by Rui on RTL8125B with 12K jumbo packets.
  10
  11 Suggested-by: Rui Salvaterra <rsalvaterra@gmail.com>
  12 Tested-by: Rui Salvaterra <rsalvaterra@gmail.com>
  13 Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
  14 Reviewed-by: Simon Horman <horms@kernel.org>
  15 Link: https://patch.msgid.link/396762ad-cc65-4e60-b01e-8847db89e98b@gmail.com
  16 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  17 ---
  18  drivers/net/ethernet/realtek/r8169_main.c | 4 ++++
  19  1 file changed, 4 insertions(+)
  20
  21 --- a/drivers/net/ethernet/realtek/r8169_main.c
  22 +++ b/drivers/net/ethernet/realtek/r8169_main.c
  23 @@ -89,6 +89,7 @@
  24  #define JUMBO_6K       (6 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
  25  #define JUMBO_7K       (7 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
  26  #define JUMBO_9K       (9 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
  27 +#define JUMBO_16K      (SZ_16K - VLAN_ETH_HLEN - ETH_FCS_LEN)
  28
  29  static const struct {
  30         const char *name;
  31 @@ -5359,6 +5360,9 @@ static int rtl_jumbo_max(struct rtl8169_
  32         /* RTL8168c */
  33         case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
  34                 return JUMBO_6K;
  35 +       /* RTL8125/8126 */
  36 +       case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_71:
  37 +               return JUMBO_16K;
  38         default:
  39                 return JUMBO_9K;
  40         }