diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2016-04-07 21:39:34 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-08 22:26:03 +0300 |
| commit | ff1b68ab2daf292c0f0897f9c155a6ddc8484693 (patch) | |
| tree | c611fdd9b24d80e20951b2b495782fb8e9548c84 /drivers/net/ethernet | |
| parent | 70f767d3afa9b2cd447b3dfc33c2751833dce931 (diff) | |
| download | linux-ff1b68ab2daf292c0f0897f9c155a6ddc8484693.tar.xz | |
nfp: correct RX buffer length calculation
When calculating the RX buffer length we need to account
for up to 2 VLAN tags. Rounding up to 1k is an relic of
a distant past and can be removed. While at it also remove
trivial print statement.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 43c618bafdb6..0dae81454e77 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -1911,9 +1911,6 @@ static void nfp_net_set_rx_mode(struct net_device *netdev) static int nfp_net_change_mtu(struct net_device *netdev, int new_mtu) { struct nfp_net *nn = netdev_priv(netdev); - u32 tmp; - - nn_dbg(nn, "New MTU = %d\n", new_mtu); if (new_mtu < 68 || new_mtu > nn->max_mtu) { nn_err(nn, "New MTU (%d) is not valid\n", new_mtu); @@ -1921,10 +1918,7 @@ static int nfp_net_change_mtu(struct net_device *netdev, int new_mtu) } netdev->mtu = new_mtu; - - /* Freelist buffer size rounded up to the nearest 1K */ - tmp = new_mtu + ETH_HLEN + VLAN_HLEN + NFP_NET_MAX_PREPEND; - nn->fl_bufsz = roundup(tmp, 1024); + nn->fl_bufsz = NFP_NET_MAX_PREPEND + ETH_HLEN + VLAN_HLEN * 2 + new_mtu; /* restart if running */ if (netif_running(netdev)) { |