525b311bf8
As usual these patches were extracted from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
44 lines
1.6 KiB
Diff
44 lines
1.6 KiB
Diff
From 6c5578bc1a55f862aaac3ad6e1826a0de32f4734 Mon Sep 17 00:00:00 2001
|
|
From: popcornmix <popcornmix@gmail.com>
|
|
Date: Wed, 20 Jan 2016 17:50:09 +0000
|
|
Subject: [PATCH 158/304] smsx95xx: Add option to disable the crimes against
|
|
truesize fix
|
|
|
|
It may improve iperf numbers on Pi 1, but may generate dmesg warnings and possibly cause network issues
|
|
See issue 1248.
|
|
---
|
|
drivers/net/usb/smsc95xx.c | 8 ++++++++
|
|
1 file changed, 8 insertions(+)
|
|
mode change 100755 => 100644 drivers/net/usb/smsc95xx.c
|
|
|
|
--- a/drivers/net/usb/smsc95xx.c
|
|
+++ b/drivers/net/usb/smsc95xx.c
|
|
@@ -75,6 +75,10 @@ static bool turbo_mode = false;
|
|
module_param(turbo_mode, bool, 0644);
|
|
MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
|
|
|
|
+static bool truesize_mode = false;
|
|
+module_param(truesize_mode, bool, 0644);
|
|
+MODULE_PARM_DESC(truesize_mode, "Report larger truesize value");
|
|
+
|
|
static char *macaddr = ":";
|
|
module_param(macaddr, charp, 0);
|
|
MODULE_PARM_DESC(macaddr, "MAC address");
|
|
@@ -1841,6 +1845,8 @@ static int smsc95xx_rx_fixup(struct usbn
|
|
if (dev->net->features & NETIF_F_RXCSUM)
|
|
smsc95xx_rx_csum_offload(skb);
|
|
skb_trim(skb, skb->len - 4); /* remove fcs */
|
|
+ if (truesize_mode)
|
|
+ skb->truesize = size + sizeof(struct sk_buff);
|
|
|
|
return 1;
|
|
}
|
|
@@ -1858,6 +1864,8 @@ static int smsc95xx_rx_fixup(struct usbn
|
|
if (dev->net->features & NETIF_F_RXCSUM)
|
|
smsc95xx_rx_csum_offload(ax_skb);
|
|
skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
|
|
+ if (truesize_mode)
|
|
+ ax_skb->truesize = size + sizeof(struct sk_buff);
|
|
|
|
usbnet_skb_return(dev, ax_skb);
|
|
}
|