diff options
| author |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2017-03-08 08:57:07 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-03-09 16:39:58 -0800 |
| commit | b9dcf88a47ebab2743a0c627a95126c4cb3e9883 (patch) | |
| tree | 48a6c1321f15d9c42b4e3cad67955e72ed8fa426 /drivers | |
| parent | nfp: avoid rearming the interrupts when in busy poll (diff) | |
| download | linux-dev-b9dcf88a47ebab2743a0c627a95126c4cb3e9883.tar.xz linux-dev-b9dcf88a47ebab2743a0c627a95126c4cb3e9883.zip | |
nfp: add metadata format bit
We only need FW version in the first cache line of adapter struct
because we need to know the metadata format. To save space add a
metadata format bit.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 4 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h index 4ad27570b6c4..34f8c439f42f 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h @@ -440,6 +440,7 @@ struct nfp_stat_pair { * @is_vf: Is the driver attached to a VF? * @bpf_offload_skip_sw: Offloaded BPF program will not be rerun by cls_bpf * @bpf_offload_xdp: Offloaded BPF program is XDP + * @chained_metadata_format: Firemware will use new metadata format * @ctrl: Local copy of the control register/word. * @fl_bufsz: Currently configured size of the freelist buffers * @rx_offset: Offset in the RX buffers where packet data starts @@ -507,6 +508,7 @@ struct nfp_net { unsigned is_vf:1; unsigned bpf_offload_skip_sw:1; unsigned bpf_offload_xdp:1; + unsigned chained_metadata_format:1; u32 ctrl; u32 fl_bufsz; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 119775d4097e..2d964d030dbe 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -1652,7 +1652,7 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget) skb_reserve(skb, data_off); skb_put(skb, pkt_len); - if (nn->fw_ver.major <= 3) { + if (!nn->chained_metadata_format) { nfp_net_set_hash_desc(nn->netdev, skb, rxd); } else if (meta_len) { void *end; @@ -3196,6 +3196,8 @@ int nfp_net_netdev_init(struct net_device *netdev) struct nfp_net *nn = netdev_priv(netdev); int err; + nn->chained_metadata_format = nn->fw_ver.major > 3; + /* Get some of the read-only fields from the BAR */ nn->cap = nn_readl(nn, NFP_NET_CFG_CAP); nn->max_mtu = nn_readl(nn, NFP_NET_CFG_MAX_MTU); |