[next,3/4] r8169: expand received packet length indication.

Submitted by fran├žois romieu on Sept. 22, 2011, 9:04 p.m.

Details

Message ID 20110922210422.GD16362@electric-eye.fr.zoreil.com
State Accepted
Delegated to: David Miller
Headers show

Commit Message

fran├žois romieu Sept. 22, 2011, 9:04 p.m.
8168d and above allow jumbo frames beyond 8k. Bump the received
packet length check before enabling jumbo frames on these chipsets.

Frame length indication covers bits 0..13 of the first Rx descriptor
32 bits for the 8169 and 8168. I only have authoritative documentation
for the allowed use of the extra (13) bit with the 8169 and 8168c.
Realtek's drivers use the same mask for the 816x and the fast ethernet
only 810x.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
---
 drivers/net/ethernet/realtek/r8169.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

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diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 9a5965e..30bba23 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -5533,7 +5533,7 @@  static int rtl8169_rx_interrupt(struct net_device *dev,
 		} else {
 			struct sk_buff *skb;
 			dma_addr_t addr = le64_to_cpu(desc->addr);
-			int pkt_size = (status & 0x00001FFF) - 4;
+			int pkt_size = (status & 0x00003fff) - 4;
 
 			/*
 			 * The driver does not support incoming fragmented