diff options
| author | Felix Fietkau <nbd@nbd.name> | 2016-08-04 12:39:06 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2016-08-11 10:45:33 +0200 |
| commit | eae422eb947518a30ec4cc9f7a3da8d6f2d0875f (patch) | |
| tree | 75681339cf02bf5343fffd5609e2bda71198dd48 | |
| parent | d378a7c4f77eb28a8c48b89e8393642c3548e015 (diff) | |
| download | upstream-eae422eb947518a30ec4cc9f7a3da8d6f2d0875f.tar.gz upstream-eae422eb947518a30ec4cc9f7a3da8d6f2d0875f.tar.bz2 upstream-eae422eb947518a30ec4cc9f7a3da8d6f2d0875f.zip | |
lantiq: fix some ethernet driver SMP issues
Signed-off-by: Felix Fietkau <nbd@nbd.name>
| -rw-r--r-- | target/linux/lantiq/patches-4.4/0025-NET-MIPS-lantiq-adds-xrx200-net.patch | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/target/linux/lantiq/patches-4.4/0025-NET-MIPS-lantiq-adds-xrx200-net.patch b/target/linux/lantiq/patches-4.4/0025-NET-MIPS-lantiq-adds-xrx200-net.patch index 07df336d2f..2d71ffafb8 100644 --- a/target/linux/lantiq/patches-4.4/0025-NET-MIPS-lantiq-adds-xrx200-net.patch +++ b/target/linux/lantiq/patches-4.4/0025-NET-MIPS-lantiq-adds-xrx200-net.patch @@ -209,7 +209,7 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net +}; --- /dev/null +++ b/drivers/net/ethernet/lantiq_xrx200.c -@@ -0,0 +1,1830 @@ +@@ -0,0 +1,1836 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published @@ -1090,7 +1090,7 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + for (i = 0; i < priv->num_port; i++) + if (priv->port[i].phydev) + phy_start(priv->port[i].phydev); -+ netif_start_queue(dev); ++ netif_wake_queue(dev); + + return 0; +} @@ -1262,6 +1262,7 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + struct xrx200_chan *ch = &priv->hw->chan[XRX200_DMA_TX]; + struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc]; + u32 byte_offset; ++ int ret = NETDEV_TX_OK; + int len; +#ifdef SW_ROUTING + u32 special_tag = (SPID_CPU_PORT << SPID_SHIFT) | DPID_ENABLE; @@ -1270,11 +1271,6 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + skb->dev = dev; + len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; + -+ if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) || ch->skb[ch->dma.desc]) { -+ netdev_err(dev, "tx ring full\n"); -+ netif_stop_queue(dev); -+ return NETDEV_TX_BUSY; -+ } +#ifdef SW_ROUTING + if (is_multicast_ether_addr(eth_hdr(skb)->h_dest)) { + u16 port_map = priv->port_map; @@ -1309,11 +1305,19 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + + /* dma needs to start on a 16 byte aligned address */ + byte_offset = CPHYSADDR(skb->data) % 16; ++ ++ spin_lock_bh(&priv->hw->lock); ++ if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) || ch->skb[ch->dma.desc]) { ++ netdev_err(dev, "tx ring full\n"); ++ netif_stop_queue(dev); ++ ret = NETDEV_TX_BUSY; ++ goto out; ++ } ++ + ch->skb[ch->dma.desc] = skb; + + dev->trans_start = jiffies; + -+ spin_lock_bh(&priv->hw->lock); + desc->addr = ((unsigned int) dma_map_single(NULL, skb->data, len, + DMA_TO_DEVICE)) - byte_offset; + wmb(); @@ -1324,12 +1328,14 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + if (ch->dma.desc == ch->tx_free) + netif_stop_queue(dev); + -+ spin_unlock_bh(&priv->hw->lock); + + priv->stats.tx_packets++; + priv->stats.tx_bytes+=len; + -+ return NETDEV_TX_OK; ++out: ++ spin_unlock_bh(&priv->hw->lock); ++ ++ return ret; +} + +static irqreturn_t xrx200_dma_irq(int irq, void *priv) |