diff options
| author |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2016-10-31 20:43:15 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-11-01 11:04:59 -0400 |
| commit | c0f031bc88660e8b96060b76aa72fbe8859bdcc8 (patch) | |
| tree | ddc815d22dab0d8291aa92544256a7629f98ec0d /drivers/net/ethernet/netronome/nfp/nfp_net.h | |
| parent | nfp: add buffer drop/recycle helper for RX (diff) | |
| download | linux-dev-c0f031bc88660e8b96060b76aa72fbe8859bdcc8.tar.xz linux-dev-c0f031bc88660e8b96060b76aa72fbe8859bdcc8.zip | |
nfp: use alloc_frag() and build_skb()
Speed up RX processing by moving to the alloc_frag()/build_skb()
paradigm. Since we're no longer mapping the entire buffer for
DMA add helpers which take care of calculating offsets and
lengths.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_net.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h index 9b90fab8a6df..9ca066b29f07 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h @@ -101,6 +101,10 @@ /* Offload definitions */ #define NFP_NET_N_VXLAN_PORTS (NFP_NET_CFG_VXLAN_SZ / sizeof(__be16)) +#define NFP_NET_RX_BUF_HEADROOM (NET_SKB_PAD + NET_IP_ALIGN) +#define NFP_NET_RX_BUF_NON_DATA (NFP_NET_RX_BUF_HEADROOM + \ + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) + /* Forward declarations */ struct nfp_net; struct nfp_net_r_vector; @@ -277,11 +281,11 @@ struct nfp_net_rx_hash { /** * struct nfp_net_rx_buf - software RX buffer descriptor - * @skb: sk_buff associated with this buffer + * @frag: page fragment buffer * @dma_addr: DMA mapping address of the buffer */ struct nfp_net_rx_buf { - struct sk_buff *skb; + void *frag; dma_addr_t dma_addr; }; |