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.
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 8c6c74d..ae76479 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -4020,10 +4020,13 @@
if (cleaned) {
struct sk_buff *skb = buffer_info->skb;
- unsigned int segs = skb_shinfo(skb)->gso_segs;
+ unsigned int segs, bytecount;
+ segs = skb_shinfo(skb)->gso_segs ?: 1;
+ /* multiply data chunks by size of headers */
+ bytecount = ((segs - 1) * skb_headlen(skb)) +
+ skb->len;
total_tx_packets += segs;
- total_tx_packets++;
- total_tx_bytes += skb->len;
+ total_tx_bytes += bytecount;
}
e1000_unmap_and_free_tx_resource(adapter, buffer_info);
tx_desc->upper.data = 0;