It is a useful optimization to rearrange the structure
slightly to align receive and transmit portions.
Signed-off-by: Stephen Hemminger <[EMAIL PROTECTED]>
--- sky2-2.6.orig/drivers/net/sky2.h
+++ sky2-2.6/drivers/net/sky2.h
@@ -1790,17 +1790,17 @@ struct sky2_port {
unsigned port;
u32 msg_enable;
- struct ring_info *tx_ring;
+ spinlock_t tx_lock ____cacheline_aligned_in_smp;
+ struct ring_info *tx_ring;
struct sky2_tx_le *tx_le;
- spinlock_t tx_lock;
- u32 tx_addr64;
u16 tx_cons; /* next le to check */
u16 tx_prod; /* next le to use */
+ u32 tx_addr64;
u16 tx_pending;
u16 tx_last_put;
u16 tx_last_mss;
- struct ring_info *rx_ring;
+ struct ring_info *rx_ring ____cacheline_aligned_in_smp;
struct sky2_rx_le *rx_le;
u32 rx_addr64;
u16 rx_next; /* next re to check */
--
Stephen Hemminger <[EMAIL PROTECTED]>
OSDL http://developer.osdl.org/~shemminger
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