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| author | Gabor Juhos <juhosg@openwrt.org> | 2013-12-17 16:27:46 +0000 |
|---|---|---|
| committer | Gabor Juhos <juhosg@openwrt.org> | 2013-12-17 16:27:46 +0000 |
| commit | 4386cc527ad879a8ef4ff8a68060f2ad3985d832 (patch) | |
| tree | c8a3cbb21477d263f9e0123037153ba397e7a7b4 | |
| parent | de63c5e8abaeff7f154173547d9e9283d2ca2cee (diff) | |
| download | upstream-4386cc527ad879a8ef4ff8a68060f2ad3985d832.tar.gz upstream-4386cc527ad879a8ef4ff8a68060f2ad3985d832.tar.bz2 upstream-4386cc527ad879a8ef4ff8a68060f2ad3985d832.zip | |
ar71xx: ag71xx: compute the RX buffer size from the maximum frame size
Currently, the AG71XX_RX_PKT_SIZE value limits the received
frame size to 1514/1516 bytes with/without a VLAN header
respectively. However the hardware limit is controlled by
the value the AG71XX_REG_MAC_MFL register which contains
the value of the max_frame_len field.
Compute the RX buffer size from the max_frame_len field
to get rid of the 1514/1516 byte limitation. Also remove
the unused AG71XX_RX_PKT_SIZE definition.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39121 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h | 2 | ||||
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c | 2 |
2 files changed, 1 insertions, 3 deletions
diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h index f3f9f14801..b0df017571 100644 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h +++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h @@ -51,8 +51,6 @@ #define AG71XX_INT_INIT (AG71XX_INT_ERR | AG71XX_INT_POLL) #define AG71XX_TX_MTU_LEN 1540 -#define AG71XX_RX_PKT_SIZE \ - (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN) #define AG71XX_TX_RING_SIZE_DEFAULT 32 #define AG71XX_RX_RING_SIZE_DEFAULT 128 diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c index 04e1e586c2..622ffed1ea 100644 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c +++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c @@ -609,7 +609,7 @@ static int ag71xx_open(struct net_device *dev) struct ag71xx *ag = netdev_priv(dev); int ret; - ag->rx_buf_size = AG71XX_RX_PKT_SIZE + NET_SKB_PAD + NET_IP_ALIGN; + ag->rx_buf_size = ag->max_frame_len + NET_SKB_PAD + NET_IP_ALIGN; ret = ag71xx_rings_init(ag); if (ret) |