diff options
Diffstat (limited to 'target/linux/cns3xxx')
| -rw-r--r-- | target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c index 776a06402f..9397a9e7ab 100644 --- a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c +++ b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c @@ -325,6 +325,7 @@ static int cns3xxx_mdio_cmd(struct mii_bus *bus, int phy_id, int location, } else { temp = MDIO_READ_COMMAND; } + temp |= ((location & 0x1f) << MDIO_REG_OFFSET); temp |= (phy_id & 0x1f); @@ -337,8 +338,7 @@ static int cns3xxx_mdio_cmd(struct mii_bus *bus, int phy_id, int location, } if (cycles == 5000) { - printk(KERN_ERR "%s #%i: MII transaction failed\n", bus->name, - phy_id); + printk(KERN_ERR "%s #%i: MII transaction failed\n", bus->name, phy_id); return -1; } @@ -363,8 +363,7 @@ static int cns3xxx_mdio_read(struct mii_bus *bus, int phy_id, int location) return ret; } -static int cns3xxx_mdio_write(struct mii_bus *bus, int phy_id, int location, - u16 val) +static int cns3xxx_mdio_write(struct mii_bus *bus, int phy_id, int location, u16 val) { unsigned long flags; int ret; @@ -392,6 +391,7 @@ static int cns3xxx_mdio_register(void __iomem *base) if ((err = mdiobus_register(mdio_bus))) mdiobus_free(mdio_bus); + return err; } @@ -537,14 +537,13 @@ static void cns3xxx_alloc_rx_buf(struct sw *sw, int received) /* put the new buffer on RX-free queue */ rx_ring->buff_tab[i] = buf; rx_ring->phys_tab[i] = phys; + if (i == RX_DESCS - 1) { + desc->config0 = FIRST_SEGMENT | LAST_SEGMENT | RX_SEGMENT_MRU | END_OF_RING; i = 0; - desc->config0 = END_OF_RING | FIRST_SEGMENT | - LAST_SEGMENT | RX_SEGMENT_MRU; desc = &(rx_ring)->desc[i]; } else { - desc->config0 = FIRST_SEGMENT | LAST_SEGMENT | - RX_SEGMENT_MRU; + desc->config0 = FIRST_SEGMENT | LAST_SEGMENT | RX_SEGMENT_MRU; i++; desc++; } @@ -566,6 +565,7 @@ static void eth_check_num_used(struct _tx_ring *tx_ring) return; tx_ring->stopped = stop; + for (i = 0; i < 4; i++) { struct port *port = switch_port_tab[i]; struct net_device *dev; @@ -574,6 +574,7 @@ static void eth_check_num_used(struct _tx_ring *tx_ring) continue; dev = port->netdev; + if (stop) netif_stop_queue(dev); else @@ -592,6 +593,7 @@ static void eth_complete_tx(struct sw *sw) index = tx_ring->free_index; desc = &(tx_ring)->desc[index]; + for (i = 0; i < num_used; i++) { if (desc->cown) { skb = tx_ring->buff_tab[index]; @@ -610,6 +612,7 @@ static void eth_complete_tx(struct sw *sw) break; } } + tx_ring->free_index = index; tx_ring->num_used -= i; eth_check_num_used(tx_ring); @@ -633,8 +636,7 @@ static int eth_poll(struct napi_struct *napi, int budget) break; /* process received frame */ - dma_unmap_single(sw->dev, rx_ring->phys_tab[i], - RX_SEGMENT_MRU, DMA_FROM_DEVICE); + dma_unmap_single(sw->dev, rx_ring->phys_tab[i], RX_SEGMENT_MRU, DMA_FROM_DEVICE); skb = build_skb(rx_ring->buff_tab[i], RX_SEGMENT_ALLOC_SIZE); if (!skb) @@ -741,8 +743,10 @@ static void eth_set_desc(struct sw *sw, struct _tx_ring *tx_ring, int index, tx_ring->phys_tab[index] = phys; config0 |= len; + if (index == TX_DESCS - 1) config0 |= END_OF_RING; + if (index == index_last) config0 |= LAST_SEGMENT; @@ -772,6 +776,7 @@ static int eth_xmit(struct sk_buff *skb, struct net_device *dev) eth_schedule_poll(sw); spin_lock_bh(&tx_lock); + if ((tx_ring->num_used + nr_desc + 1) >= TX_DESCS) { spin_unlock_bh(&tx_lock); return NETDEV_TX_BUSY; @@ -875,7 +880,6 @@ static int init_rings(struct sw *sw) __raw_writel(TS_SUSPEND | FS_SUSPEND, &sw->regs->dma_auto_poll_cfg); __raw_writel(QUEUE_THRESHOLD, &sw->regs->dma_ring_ctrl); __raw_writel(CLR_FS_STATE | QUEUE_THRESHOLD, &sw->regs->dma_ring_ctrl); - __raw_writel(QUEUE_THRESHOLD, &sw->regs->dma_ring_ctrl); rx_ring->desc = dmam_alloc_coherent(sw->dev, RX_POOL_ALLOC_SIZE, @@ -885,6 +889,7 @@ static int init_rings(struct sw *sw) /* Setup RX buffers */ memset(rx_ring->desc, 0, RX_POOL_ALLOC_SIZE); + for (i = 0; i < RX_DESCS; i++) { struct rx_desc *desc = &(rx_ring)->desc[i]; void *buf; @@ -894,13 +899,16 @@ static int init_rings(struct sw *sw) return -ENOMEM; desc->sdl = RX_SEGMENT_MRU; + if (i == (RX_DESCS - 1)) desc->eor = 1; + desc->fsd = 1; desc->lsd = 1; desc->sdp = dma_map_single(sw->dev, buf + SKB_HEAD_ALIGN, RX_SEGMENT_MRU, DMA_FROM_DEVICE); + if (dma_mapping_error(sw->dev, desc->sdp)) return -EIO; @@ -918,12 +926,14 @@ static int init_rings(struct sw *sw) /* Setup TX buffers */ memset(tx_ring->desc, 0, TX_POOL_ALLOC_SIZE); + for (i = 0; i < TX_DESCS; i++) { struct tx_desc *desc = &(tx_ring)->desc[i]; tx_ring->buff_tab[i] = 0; if (i == (TX_DESCS - 1)) desc->eor = 1; + desc->cown = 1; } __raw_writel(tx_ring->phys_addr, &sw->regs->ts_desc_ptr0); @@ -944,8 +954,7 @@ static void destroy_rings(struct sw *sw) if (!buf) continue; - dma_unmap_single(sw->dev, desc->sdp, RX_SEGMENT_MRU, - DMA_FROM_DEVICE); + dma_unmap_single(sw->dev, desc->sdp, RX_SEGMENT_MRU, DMA_FROM_DEVICE); skb_free_frag(buf); } |