From 5dce95e5687a5a335202b03d133c1b4411ef7ce3 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 18 Aug 2009 15:17:06 +0000 Subject: sky2: transmit ring 64 bit conservation This patch saves elements on transmit ring by only updating the upper 64 bit address when it changes. With many workloads skb's are located in same region, so it saves space. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/sky2.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/sky2.h') diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h index 65b94c366fbc..feb3204134ed 100644 --- a/drivers/net/sky2.h +++ b/drivers/net/sky2.h @@ -2017,6 +2017,7 @@ struct sky2_port { u16 tx_pending; u16 tx_last_mss; + u32 tx_last_upper; u32 tx_tcpsum; struct rx_ring_info *rx_ring ____cacheline_aligned_in_smp; -- cgit v1.2.3