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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>
This commit is contained in:
Jakub Kicinski 2016-04-07 19:39:34 +01:00 committed by David S. Miller
parent 70f767d3af
commit ff1b68ab2d
1 changed files with 1 additions and 7 deletions
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8
drivers/net/ethernet/netronome/nfp/nfp_net_common.c
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@ -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)) {