diff options
| author | Tariq Toukan <tariqt@mellanox.com> | 2020-08-26 15:54:16 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-08-26 15:55:53 -0700 |
| commit | f468f21b7af0fa472ff8ff70f10b9b4995ef7eb3 (patch) | |
| tree | 28a881ee0878c42efa3e4eb0aa55b75000c2f6d2 /drivers/net/ethernet/hisilicon | |
| parent | 04e006b483c8bcab9033c9610cff9cef5e730758 (diff) | |
net: Take common prefetch code structure into a function
Many device drivers use the same prefetch code structure to
deal with small L1 cacheline size.
Take this code into a function and call it from the drivers.
Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_enet.c | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 5 |
2 files changed, 2 insertions, 8 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 23f278e46975..3af33ade7b60 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -557,10 +557,7 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data, va = (unsigned char *)desc_cb->buf + desc_cb->page_offset; /* prefetch first cache line of first page */ - prefetch(va); -#if L1_CACHE_BYTES < 128 - prefetch(va + L1_CACHE_BYTES); -#endif + net_prefetch(va); skb = *out_skb = napi_alloc_skb(&ring_data->napi, HNS_RX_HEAD_SIZE); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 87776ce3539b..1a1ba6a41bfe 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -3091,10 +3091,7 @@ static int hns3_handle_rx_bd(struct hns3_enet_ring *ring) * lines. In such a case, single fetch would suffice to cache in the * relevant part of the header. */ - prefetch(ring->va); -#if L1_CACHE_BYTES < 128 - prefetch(ring->va + L1_CACHE_BYTES); -#endif + net_prefetch(ring->va); if (!skb) { ret = hns3_alloc_skb(ring, length, ring->va); |