OpenWrt – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | --- a/drivers/net/ethernet/xscale/ixp4xx_eth.c |
2 | +++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c |
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3 | @@ -57,7 +57,7 @@ |
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4 | |||
5 | #define POOL_ALLOC_SIZE (sizeof(struct desc) * (RX_DESCS + TX_DESCS)) |
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6 | #define REGS_SIZE 0x1000 |
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7 | -#define MAX_MRU 1536 /* 0x600 */ |
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8 | +#define MAX_MRU (14320 - ETH_HLEN - ETH_FCS_LEN) |
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9 | #define RX_BUFF_SIZE ALIGN((NET_IP_ALIGN) + MAX_MRU, 4) |
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10 | |||
11 | #define NAPI_WEIGHT 16 |
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12 | @@ -1289,6 +1289,32 @@ static void destroy_queues(struct port * |
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13 | } |
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14 | } |
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15 | |||
16 | +static int eth_do_change_mtu(struct net_device *dev, int mtu) |
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17 | +{ |
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18 | + struct port *port; |
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19 | + struct msg msg; |
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20 | + /* adjust for ethernet headers */ |
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21 | + int framesize = mtu + ETH_HLEN + ETH_FCS_LEN; |
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22 | + |
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23 | + port = netdev_priv(dev); |
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24 | + |
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25 | + memset(&msg, 0, sizeof(msg)); |
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26 | + msg.cmd = NPE_SETMAXFRAMELENGTHS; |
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27 | + msg.eth_id = port->id; |
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28 | + |
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29 | + /* max rx/tx 64 byte blocks */ |
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30 | + msg.byte2 = ((framesize + 63) / 64) << 8; |
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31 | + msg.byte3 = ((framesize + 63) / 64) << 8; |
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32 | + |
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33 | + msg.byte4 = msg.byte6 = framesize >> 8; |
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34 | + msg.byte5 = msg.byte7 = framesize & 0xff; |
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35 | + |
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36 | + if (npe_send_recv_message(port->npe, &msg, "ETH_SET_MAX_FRAME_LENGTH")) |
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37 | + return -EIO; |
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38 | + |
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39 | + return 0; |
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40 | +} |
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41 | + |
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42 | static int eth_open(struct net_device *dev) |
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43 | { |
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44 | struct port *port = netdev_priv(dev); |
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45 | @@ -1340,6 +1366,8 @@ static int eth_open(struct net_device *d |
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46 | if (npe_send_recv_message(port->npe, &msg, "ETH_SET_FIREWALL_MODE")) |
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47 | return -EIO; |
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48 | |||
49 | + eth_do_change_mtu(dev, dev->mtu); |
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50 | + |
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51 | if ((err = request_queues(port)) != 0) |
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52 | return err; |
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53 | |||
54 | @@ -1479,7 +1507,26 @@ static int eth_close(struct net_device * |
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55 | return 0; |
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56 | } |
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57 | |||
58 | +static int ixp_eth_change_mtu(struct net_device *dev, int mtu) |
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59 | +{ |
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60 | + int ret; |
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61 | + |
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62 | + if (mtu > MAX_MRU) |
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63 | + return -EINVAL; |
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64 | + |
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65 | + if (dev->flags & IFF_UP) { |
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66 | + ret = eth_do_change_mtu(dev, mtu); |
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67 | + if (ret < 0) |
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68 | + return ret; |
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69 | + } |
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70 | + |
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71 | + dev->mtu = mtu; |
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72 | + |
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73 | + return 0; |
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74 | +} |
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75 | + |
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76 | static const struct net_device_ops ixp4xx_netdev_ops = { |
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77 | + .ndo_change_mtu = ixp_eth_change_mtu, |
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78 | .ndo_open = eth_open, |
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79 | .ndo_stop = eth_close, |
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80 | .ndo_start_xmit = eth_xmit, |