Commit 9927b514 authored by Dmitry Kravkov's avatar Dmitry Kravkov Committed by David S. Miller

bnx2x: enlarge minimal alignemnt of data offset

This improves the performance of driver on machine with L1_CACHE_SHIFT of at
most 32 bytes [HW was planned for 64-byte aligned fastpath data].
Signed-off-by: default avatarDmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: default avatarYuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: default avatarAriel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6495d15a
...@@ -1508,8 +1508,10 @@ struct bnx2x { ...@@ -1508,8 +1508,10 @@ struct bnx2x {
/* TCP with Timestamp Option (32) + IPv6 (40) */ /* TCP with Timestamp Option (32) + IPv6 (40) */
#define ETH_MAX_TPA_HEADER_SIZE 72 #define ETH_MAX_TPA_HEADER_SIZE 72
/* Max supported alignment is 256 (8 shift) */ /* Max supported alignment is 256 (8 shift)
#define BNX2X_RX_ALIGN_SHIFT min(8, L1_CACHE_SHIFT) * minimal alignment shift 6 is optimal for 57xxx HW performance
*/
#define BNX2X_RX_ALIGN_SHIFT max(6, min(8, L1_CACHE_SHIFT))
/* FW uses 2 Cache lines Alignment for start packet and size /* FW uses 2 Cache lines Alignment for start packet and size
* *
......
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