X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fopenwrt.git;a=blobdiff_plain;f=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0127-net-lan78xx-Disable-TCP-Segmentation-Offload-TSO.patch;fp=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0127-net-lan78xx-Disable-TCP-Segmentation-Offload-TSO.patch;h=0000000000000000000000000000000000000000;hp=bd9987d8ad553edc1d068724677ea6c58b7e8e5b;hb=7d7aa2fd924c27829ec25f825481554dd81bce97;hpb=e7bfda2c243e66a75ff966ba04c28b1590b5d24c

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
index bd9987d8ad..0000000000
--- 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;