diff options
| author |   Yunsheng Lin <linyunsheng@huawei.com> | 2020-09-16 17:33:49 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-09-17 16:14:28 -0700 |
| commit | 48ee56fd0b3785481a521fb7daaf1465219fc3af (patch) | |
| tree | 870fcb293c004d899d2f87343d2b23a442eab935 /drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | |
| parent | net: hns3: optimize the rx clean process (diff) | |
| download | linux-dev-48ee56fd0b3785481a521fb7daaf1465219fc3af.tar.xz linux-dev-48ee56fd0b3785481a521fb7daaf1465219fc3af.zip | |
net: hns3: use writel() to optimize the barrier operation
writel() can be used to order I/O vs memory by default when
writing portable drivers. Use writel() to replace wmb() +
writel_relaxed(), and writel() is dma_wmb() + writel_relaxed()
for ARM64, so there is an optimization here because dma_wmb()
is a lighter barrier than wmb().
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, 0 insertions, 3 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h index 876dc09ac122..20e62cec488d 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h @@ -539,9 +539,6 @@ static inline bool hns3_nic_resetting(struct net_device *netdev) #define hns3_write_dev(a, reg, value) \ hns3_write_reg((a)->io_base, (reg), (value)) -#define hnae3_queue_xmit(tqp, buf_num) writel_relaxed(buf_num, \ - (tqp)->io_base + HNS3_RING_TX_RING_TAIL_REG) - #define ring_to_dev(ring) ((ring)->dev) #define ring_to_netdev(ring) ((ring)->tqp_vector->napi.dev) |