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Commit 7753b171 authored by Jesse Brandeburg's avatar Jesse Brandeburg Committed by Jeff Garzik
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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.
parent f6c57baf

drivers/net/e1000/e1000_main.c

+6 −3
Original line number Diff line number Diff line
@@ -4020,10 +4020,13 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter, 


			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;