From 6072e777e97fc11d25f7e013855a31d9eaaf0e74 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 17 Dec 2013 15:18:16 +0000
Subject: [PATCH] ar71xx: ag71xx: store maximum frame length in the ag71xx
struct
This will allow to use different values for the
different SoCs.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
SVN-Revision: 39117
---
.../files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h | 2 ++
.../drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c | 8 ++++++--
2 files changed, 8 insertions(+), 2 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 606c6f1c05..68d2691040 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
@@ -168,6 +168,8 @@ struct ag71xx {
unsigned int speed;
int duplex;
+ unsigned int max_frame_len;
+
struct work_struct restart_work;
struct delayed_work link_work;
struct timer_list oom_timer;
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 0c2163f5be..281d0f5686 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
@@ -434,7 +434,7 @@ static void ag71xx_hw_setup(struct ag71xx *ag)
MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK);
/* setup max frame length */
- ag71xx_wr(ag, AG71XX_REG_MAC_MFL, AG71XX_TX_MTU_LEN);
+ ag71xx_wr(ag, AG71XX_REG_MAC_MFL, ag->max_frame_len);
/* setup FIFO configuration registers */
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, FIFO_CFG0_INIT);
@@ -1048,8 +1048,10 @@ static void ag71xx_netpoll(struct net_device *dev)
static int ag71xx_change_mtu(struct net_device *dev, int new_mtu)
{
+ struct ag71xx *ag = netdev_priv(dev);
+
if (new_mtu < 68 ||
- new_mtu > AG71XX_TX_MTU_LEN - ETH_HLEN - ETH_FCS_LEN)
+ new_mtu > ag->max_frame_len - ETH_HLEN - ETH_FCS_LEN)
return -EINVAL;
dev->mtu = new_mtu;
@@ -1164,6 +1166,8 @@ static int ag71xx_probe(struct platform_device *pdev)
ag->tx_ring.size = AG71XX_TX_RING_SIZE_DEFAULT;
ag->rx_ring.size = AG71XX_RX_RING_SIZE_DEFAULT;
+ ag->max_frame_len = AG71XX_TX_MTU_LEN;
+
ag->stop_desc = dma_alloc_coherent(NULL,
sizeof(struct ag71xx_desc), &ag->stop_desc_dma, GFP_KERNEL);
--
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