diff options
Diffstat (limited to 'target/linux/mediatek/patches-4.4/0098-net-next-mediatek-only-trigger-the-tx-watchdog-reset.patch')
| -rw-r--r-- | target/linux/mediatek/patches-4.4/0098-net-next-mediatek-only-trigger-the-tx-watchdog-reset.patch | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.4/0098-net-next-mediatek-only-trigger-the-tx-watchdog-reset.patch b/target/linux/mediatek/patches-4.4/0098-net-next-mediatek-only-trigger-the-tx-watchdog-reset.patch new file mode 100644 index 0000000000..bbcbc67937 --- /dev/null +++ b/target/linux/mediatek/patches-4.4/0098-net-next-mediatek-only-trigger-the-tx-watchdog-reset.patch @@ -0,0 +1,64 @@ +From cd1343c14328a5de1a58c47b81b8a2febb31d542 Mon Sep 17 00:00:00 2001 +From: John Crispin <john@phrozen.org> +Date: Tue, 10 May 2016 11:16:30 +0200 +Subject: [PATCH 098/102] net-next: mediatek: only trigger the tx watchdog + reset when all devices are stalled + +Signed-off-by: Sean Wang <keyhaede@gmail.com> +Signed-off-by: John Crispin <john@phrozen.org> +--- + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 14 ++++++++++++-- + drivers/net/ethernet/mediatek/mtk_eth_soc.h | 1 + + 2 files changed, 13 insertions(+), 2 deletions(-) + +diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +index bced659..70e961c 100644 +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -1267,11 +1267,21 @@ static void mtk_tx_timeout(struct net_device *dev) + { + struct mtk_mac *mac = netdev_priv(dev); + struct mtk_eth *eth = mac->hw; ++ int i, reset = 0; + + eth->netdev[mac->id]->stats.tx_errors++; + netif_err(eth, tx_err, dev, + "transmit timed out\n"); +- schedule_work(ð->pending_work); ++ ++ for (i = 0; i < MTK_MAC_COUNT; i++) { ++ if (!eth->netdev[i] || ++ time_after(jiffies, dev_trans_start(eth->netdev[i]) + ++ MTK_WDT_TIMEOUT)) ++ reset++; ++ } ++ ++ if (reset == MTK_MAC_COUNT) ++ schedule_work(ð->pending_work); + } + + static irqreturn_t mtk_handle_irq_rx(int irq, void *_eth) +@@ -1765,7 +1775,7 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) + mac->hw_stats->reg_offset = id * MTK_STAT_OFFSET; + + SET_NETDEV_DEV(eth->netdev[id], eth->dev); +- eth->netdev[id]->watchdog_timeo = 5 * HZ; ++ eth->netdev[id]->watchdog_timeo = MTK_WDT_TIMEOUT; + eth->netdev[id]->netdev_ops = &mtk_netdev_ops; + eth->netdev[id]->base_addr = (unsigned long)eth->base; + eth->netdev[id]->vlan_features = MTK_HW_FEATURES & +diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h +index f82e3ac..e39da72 100644 +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h +@@ -15,6 +15,7 @@ + #ifndef MTK_ETH_H + #define MTK_ETH_H + ++#define MTK_WDT_TIMEOUT (4 * HZ) + #define MTK_QDMA_PAGE_SIZE 2048 + #define MTK_MAX_RX_LENGTH 1536 + #define MTK_TX_DMA_BUF_LEN 0x3fff +-- +1.7.10.4 + |