Commit 30765d05 authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller

cpmac: fix the receiving of 802.1q frames

Despite what the comment above CPMAC_SKB_SIZE says, the hardware also
needs to account for the FCS length in a received frame. This patch fix
the receiving of 802.1q frames which have 4 more bytes. While at it
unhardcode the definition and use the one from if_vlan.h.
Signed-off-by: default avatarFlorian Fainelli <florian@openwrt.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8d15d386
......@@ -28,6 +28,7 @@
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/if_vlan.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/skbuff.h>
......@@ -56,8 +57,8 @@ MODULE_PARM_DESC(debug_level, "Number of NETIF_MSG bits to enable");
MODULE_PARM_DESC(dumb_switch, "Assume switch is not connected to MDIO bus");
#define CPMAC_VERSION "0.5.1"
/* frame size + 802.1q tag */
#define CPMAC_SKB_SIZE (ETH_FRAME_LEN + 4)
/* frame size + 802.1q tag + FCS size */
#define CPMAC_SKB_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN)
#define CPMAC_QUEUES 8
/* Ethernet registers */
......
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