brcm2708: rename target to bcm27xx

[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0127-net-lan78xx-Disable-TCP-Segmentation-Offload-TSO.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0127-net-lan78xx-Disable-TCP-Segmentation-Offload-TSO.patch b/target/linux/brcm2708/patches-4.19/950-0127-net-lan78xx-Disable-TCP-Segmentation-Offload-TSO.patch
deleted file mode 100644 (file)
index bd9987d..0000000
--- a/target/linux/brcm2708/patches-4.19/950-0127-net-lan78xx-Disable-TCP-Segmentation-Offload-TSO.patch
+++ /dev/null
@@ -1,56 +0,0 @@
-From 59555269e09f06ae0ded9007c4aa02fa55ce71ca Mon Sep 17 00:00:00 2001
-From: Dave Stevenson <dave.stevenson@raspberrypi.org>
-Date: Wed, 13 Jun 2018 15:21:10 +0100
-Subject: [PATCH] net: lan78xx: Disable TCP Segmentation Offload (TSO)
-
-TSO seems to be having issues when packets are dropped and the
-remote end uses Selective Acknowledge (SACK) to denote that
-data is missing. The missing data is never resent, so the
-connection eventually stalls.
-
-There is a module parameter of enable_tso added to allow
-further debugging without forcing a rebuild of the kernel.
-
-https://github.com/raspberrypi/linux/issues/2449
-https://github.com/raspberrypi/linux/issues/2482
-
-Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
----
- drivers/net/usb/lan78xx.c | 19 +++++++++++++++++--
- 1 file changed, 17 insertions(+), 2 deletions(-)
-
---- a/drivers/net/usb/lan78xx.c
-+++ b/drivers/net/usb/lan78xx.c
-@@ -440,6 +440,15 @@ static int msg_level = -1;
- module_param(msg_level, int, 0);
- MODULE_PARM_DESC(msg_level, "Override default message level");
- 
-+/* TSO seems to be having some issue with Selective Acknowledge (SACK) that
-+ * results in lost data never being retransmitted.
-+ * Disable it by default now, but adds a module parameter to enable it for
-+ * debug purposes (the full cause is not currently understood).
-+ */
-+static bool enable_tso;
-+module_param(enable_tso, bool, 0644);
-+MODULE_PARM_DESC(enable_tso, "Enables TCP segmentation offload");
-+
- static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data)
- {
-       u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL);
-@@ -3010,8 +3019,14 @@ static int lan78xx_bind(struct lan78xx_n
-       if (DEFAULT_RX_CSUM_ENABLE)
-               dev->net->features |= NETIF_F_RXCSUM;
- 
--      if (DEFAULT_TSO_CSUM_ENABLE)
--              dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_SG;
-+      if (DEFAULT_TSO_CSUM_ENABLE) {
-+              dev->net->features |= NETIF_F_SG;
-+              /* Use module parameter to control TCP segmentation offload as
-+               * it appears to cause issues.
-+               */
-+              if (enable_tso)
-+                      dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6;
-+      }
- 
-       if (DEFAULT_VLAN_RX_OFFLOAD)
-               dev->net->features |= NETIF_F_HW_VLAN_CTAG_RX;