Commit ff1b68ab authored by Jakub Kicinski's avatar Jakub Kicinski Committed by David S. Miller
Browse files

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: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 70f767d3
......@@ -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)) {
......
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