diff options
Diffstat (limited to 'target/linux/lantiq/patches-4.4')
| -rw-r--r-- | target/linux/lantiq/patches-4.4/0025-NET-MIPS-lantiq-adds-xrx200-net.patch | 48 |
1 files changed, 31 insertions, 17 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 2d71ffafb8..c01ab33f82 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 +1,1836 @@ +@@ -0,0 +1,1850 @@ +/* + * 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 @@ -276,6 +276,7 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net +#define XRX200_DMA_IRQ INT_NUM_IM2_IRL0 +#define XRX200_DMA_RX 0 +#define XRX200_DMA_TX 1 ++#define XRX200_DMA_TX_2 3 +#define XRX200_DMA_IS_TX(x) (x%2) +#define XRX200_DMA_IS_RX(x) (!XRX200_DMA_IS_TX(x)) + @@ -424,6 +425,8 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + struct napi_struct napi; + struct ltq_dma_channel dma; + struct sk_buff *skb[LTQ_DESC_NUM]; ++ ++ spinlock_t lock; +}; + +struct xrx200_hw { @@ -440,8 +443,6 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + int port_map[XRX200_MAX_PORT]; + unsigned short wan_map; + -+ spinlock_t lock; -+ + struct switch_dev swdev; +}; + @@ -1078,14 +1079,14 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + for (i = 0; i < XRX200_MAX_DMA; i++) { + if (!priv->hw->chan[i].dma.irq) + continue; -+ spin_lock_bh(&priv->hw->lock); ++ spin_lock_bh(&priv->hw->chan[i].lock); + if (!priv->hw->chan[i].refcount) { + if (XRX200_DMA_IS_RX(i)) + napi_enable(&priv->hw->chan[i].napi); + ltq_dma_open(&priv->hw->chan[i].dma); + } + priv->hw->chan[i].refcount++; -+ spin_unlock_bh(&priv->hw->lock); ++ spin_unlock_bh(&priv->hw->chan[i].lock); + } + for (i = 0; i < priv->num_port; i++) + if (priv->port[i].phydev) @@ -1109,14 +1110,14 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + for (i = 0; i < XRX200_MAX_DMA; i++) { + if (!priv->hw->chan[i].dma.irq) + continue; -+ spin_lock_bh(&priv->hw->lock); ++ spin_lock_bh(&priv->hw->chan[i].lock); + priv->hw->chan[i].refcount--; + if (!priv->hw->chan[i].refcount) { + if (XRX200_DMA_IS_RX(i)) + napi_disable(&priv->hw->chan[i].napi); + ltq_dma_close(&priv->hw->chan[XRX200_DMA_RX].dma); + } -+ spin_unlock_bh(&priv->hw->lock); ++ spin_unlock_bh(&priv->hw->chan[i].lock); + } + + return 0; @@ -1211,12 +1212,11 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + +static void xrx200_tx_housekeeping(unsigned long ptr) +{ -+ struct xrx200_hw *hw = (struct xrx200_hw *) ptr; -+ struct xrx200_chan *ch = &hw->chan[XRX200_DMA_TX]; ++ struct xrx200_chan *ch = (struct xrx200_chan *) ptr; + int pkts = 0; + int i; + -+ spin_lock_bh(&hw->lock); ++ spin_lock_bh(&ch->lock); + ltq_dma_ack_irq(&ch->dma); + while ((ch->dma.desc_base[ch->tx_free].ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) == LTQ_DMA_C) { + struct sk_buff *skb = ch->skb[ch->tx_free]; @@ -1230,7 +1230,7 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + ch->tx_free %= LTQ_DESC_NUM; + } + ltq_dma_enable_irq(&ch->dma); -+ spin_unlock_bh(&hw->lock); ++ spin_unlock_bh(&ch->lock); + + if (!pkts) + return; @@ -1259,14 +1259,20 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net +static int xrx200_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct xrx200_priv *priv = netdev_priv(dev); -+ struct xrx200_chan *ch = &priv->hw->chan[XRX200_DMA_TX]; -+ struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc]; ++ struct xrx200_chan *ch; ++ struct ltq_dma_desc *desc; + u32 byte_offset; + int ret = NETDEV_TX_OK; + int len; +#ifdef SW_ROUTING + u32 special_tag = (SPID_CPU_PORT << SPID_SHIFT) | DPID_ENABLE; +#endif ++ if(priv->id) ++ ch = &priv->hw->chan[XRX200_DMA_TX_2]; ++ else ++ ch = &priv->hw->chan[XRX200_DMA_TX]; ++ ++ desc = &ch->dma.desc_base[ch->dma.desc]; + + skb->dev = dev; + len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; @@ -1306,7 +1312,7 @@ 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); ++ spin_lock_bh(&ch->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); @@ -1333,7 +1339,7 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + priv->stats.tx_bytes+=len; + +out: -+ spin_unlock_bh(&priv->hw->lock); ++ spin_unlock_bh(&ch->lock); + + return ret; +} @@ -1365,11 +1371,16 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + int irq = XRX200_DMA_IRQ + i; + struct xrx200_chan *ch = &hw->chan[i]; + ++ spin_lock_init(&ch->lock); ++ + ch->idx = ch->dma.nr = i; + + if (i == XRX200_DMA_TX) { + ltq_dma_alloc_tx(&ch->dma); + err = request_irq(irq, xrx200_dma_irq, 0, "vrx200_tx", hw); ++ } else if (i == XRX200_DMA_TX_2) { ++ ltq_dma_alloc_tx(&ch->dma); ++ err = request_irq(irq, xrx200_dma_irq, 0, "vrx200_tx_2", hw); + } else if (i == XRX200_DMA_RX) { + ltq_dma_alloc_rx(&ch->dma); + for (ch->dma.desc = 0; ch->dma.desc < LTQ_DESC_NUM; @@ -1383,6 +1394,8 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + + if (!err) + ch->dma.irq = irq; ++ else ++ pr_err("net-xrx200: failed to request irq %d\n", irq); + } + + return err; @@ -1952,10 +1965,10 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + } + + /* bring up the dma engine and IP core */ -+ spin_lock_init(&xrx200_hw.lock); + xrx200_dma_init(&xrx200_hw); + xrx200_hw_init(&xrx200_hw); -+ tasklet_init(&xrx200_hw.chan[XRX200_DMA_TX].tasklet, xrx200_tx_housekeeping, (u32) &xrx200_hw); ++ tasklet_init(&xrx200_hw.chan[XRX200_DMA_TX].tasklet, xrx200_tx_housekeeping, (u32) &xrx200_hw.chan[XRX200_DMA_TX]); ++ tasklet_init(&xrx200_hw.chan[XRX200_DMA_TX_2].tasklet, xrx200_tx_housekeeping, (u32) &xrx200_hw.chan[XRX200_DMA_TX_2]); + + /* bring up the mdio bus */ + mdio_np = of_find_compatible_node(pdev->dev.of_node, NULL, @@ -1989,6 +2002,7 @@ Subject: [PATCH 25/36] NET: MIPS: lantiq: adds xrx200-net + for (i = 0; i < xrx200_hw.num_devs; i++) { + xrx200_hw.chan[XRX200_DMA_RX].devs[i] = xrx200_hw.devs[i]; + xrx200_hw.chan[XRX200_DMA_TX].devs[i] = xrx200_hw.devs[i]; ++ xrx200_hw.chan[XRX200_DMA_TX_2].devs[i] = xrx200_hw.devs[i]; + } + + /* setup NAPI */ |