diff options
| author | Yunsheng Lin <linyunsheng@huawei.com> | 2019-02-23 17:22:09 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-24 20:27:50 -0800 |
| commit | 3fe13ed95dd3c4aede3313a2dd2d589c207b51d0 (patch) | |
| tree | 6bb9e7f4f133e2b47bfa76ac67a08a0095a5b9b7 /drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | |
| parent | 2a73ac3e6c9d7cd80af731bcb699c180d95c8166 (diff) | |
net: hns3: avoid mult + div op in critical data path
This patch uses shift offset to avoid doing mult and div operation.
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3_enet.h')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h index 71ff8f4d6c18..5c414653d0b6 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h @@ -184,6 +184,8 @@ enum hns3_nic_state { #define HNS3_TXD_MSS_S 0 #define HNS3_TXD_MSS_M (0x3fff << HNS3_TXD_MSS_S) +#define HNS3_TX_LAST_SIZE_M 0xffff + #define HNS3_VECTOR_TX_IRQ BIT_ULL(0) #define HNS3_VECTOR_RX_IRQ BIT_ULL(1) @@ -191,6 +193,7 @@ enum hns3_nic_state { #define HNS3_VECTOR_INITED 1 #define HNS3_MAX_BD_SIZE 65535 +#define HNS3_MAX_BD_SIZE_OFFSET 16 #define HNS3_MAX_BD_PER_FRAG 8 #define HNS3_MAX_BD_PER_PKT MAX_SKB_FRAGS |