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@ -28,6 +28,11 @@ static int ag71xx_msg_level = -1; |
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module_param_named(msg_level, ag71xx_msg_level, int, 0); |
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MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)"); |
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static inline unsigned int ag71xx_max_frame_len(unsigned int mtu) |
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{ |
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return ETH_HLEN + VLAN_HLEN + mtu + ETH_FCS_LEN; |
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} |
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static void ag71xx_dump_dma_regs(struct ag71xx *ag) |
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{ |
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DBG("%s: dma_tx_ctrl=%08x, dma_tx_desc=%08x, dma_tx_status=%08x\n", |
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@ -1052,9 +1057,10 @@ static void ag71xx_netpoll(struct net_device *dev) |
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static int ag71xx_change_mtu(struct net_device *dev, int new_mtu) |
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{ |
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struct ag71xx *ag = netdev_priv(dev); |
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unsigned int max_frame_len; |
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if (new_mtu < 68 || |
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new_mtu > ag->max_frame_len - ETH_HLEN - ETH_FCS_LEN) |
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max_frame_len = ag71xx_max_frame_len(new_mtu); |
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if (new_mtu < 68 || max_frame_len > ag->max_frame_len) |
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return -EINVAL; |
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dev->mtu = new_mtu; |
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