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| author | David S. Miller <davem@davemloft.net> | 2020-08-26 15:55:54 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-08-26 15:55:54 -0700 |
| commit | 751e42515efbe00cf8fe8c8bb160a207364dbb2b (patch) | |
| tree | c36f4686f70d69dd88ed5ab35c3dab6eee472178 /drivers/net/ethernet/intel/igb/igb_main.c | |
| parent | 04e006b483c8bcab9033c9610cff9cef5e730758 (diff) | |
| parent | aed4d4c663384aa8443ce56988fa4858a5c606dc (diff) | |
Merge branch 'net_prefetch-API'
Tariq Toukan says:
====================
net_prefetch API
This patchset adds a common net API for L1 cacheline size-aware prefetch.
Patch 1 introduces the common API in net and aligns the drivers to use it.
Patches 2 and 3 add usage in mlx4 and mlx5 Eth drivers.
Series generated against net-next commit:
079f921e9f4d Merge tag 'batadv-next-for-davem-20200824' of git://git.open-mesh.org/linux-merge
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel/igb/igb_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 4f05f6efe6af..698bb6a4b088 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -8047,10 +8047,7 @@ static struct sk_buff *igb_construct_skb(struct igb_ring *rx_ring, struct sk_buff *skb; /* prefetch first cache line of first page */ - prefetch(va); -#if L1_CACHE_BYTES < 128 - prefetch(va + L1_CACHE_BYTES); -#endif + net_prefetch(va); /* allocate a skb to store the frags */ skb = napi_alloc_skb(&rx_ring->q_vector->napi, IGB_RX_HDR_LEN); @@ -8104,10 +8101,7 @@ static struct sk_buff *igb_build_skb(struct igb_ring *rx_ring, struct sk_buff *skb; /* prefetch first cache line of first page */ - prefetch(va); -#if L1_CACHE_BYTES < 128 - prefetch(va + L1_CACHE_BYTES); -#endif + net_prefetch(va); /* build an skb around the page buffer */ skb = build_skb(va - IGB_SKB_PAD, truesize); |