e1000: tune our dynamic itr transmit packet accounting
The driver was still mis-calculating the number of bytes sent during transmit, now the driver computes what appears to be exactly 100% correct byte counts (not including CRC) when figuring out how many bytes and frames were sent during the current transmit packet.
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@ -4020,10 +4020,13 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
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if (cleaned) {
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struct sk_buff *skb = buffer_info->skb;
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unsigned int segs = skb_shinfo(skb)->gso_segs;
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unsigned int segs, bytecount;
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segs = skb_shinfo(skb)->gso_segs ?: 1;
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/* multiply data chunks by size of headers */
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bytecount = ((segs - 1) * skb_headlen(skb)) +
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skb->len;
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total_tx_packets += segs;
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total_tx_packets++;
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total_tx_bytes += skb->len;
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total_tx_bytes += bytecount;
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}
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e1000_unmap_and_free_tx_resource(adapter, buffer_info);
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tx_desc->upper.data = 0;
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