diff options
Diffstat (limited to 'drivers/net/ibmveth.c')
| -rw-r--r-- | drivers/net/ibmveth.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c index 2602852cc55a..4734c939ad03 100644 --- a/drivers/net/ibmveth.c +++ b/drivers/net/ibmveth.c @@ -1113,7 +1113,8 @@ static int ibmveth_change_mtu(struct net_device *dev, int new_mtu) struct ibmveth_adapter *adapter = netdev_priv(dev); struct vio_dev *viodev = adapter->vdev; int new_mtu_oh = new_mtu + IBMVETH_BUFF_OH; - int i; + int i, rc; + int need_restart = 0; if (new_mtu < IBMVETH_MAX_MTU) return -EINVAL; @@ -1127,35 +1128,32 @@ static int ibmveth_change_mtu(struct net_device *dev, int new_mtu) /* Deactivate all the buffer pools so that the next loop can activate only the buffer pools necessary to hold the new MTU */ - for (i = 0; i < IbmVethNumBufferPools; i++) - if (adapter->rx_buff_pool[i].active) { - ibmveth_free_buffer_pool(adapter, - &adapter->rx_buff_pool[i]); - adapter->rx_buff_pool[i].active = 0; - } + if (netif_running(adapter->netdev)) { + need_restart = 1; + adapter->pool_config = 1; + ibmveth_close(adapter->netdev); + adapter->pool_config = 0; + } /* Look for an active buffer pool that can hold the new MTU */ for(i = 0; i<IbmVethNumBufferPools; i++) { adapter->rx_buff_pool[i].active = 1; if (new_mtu_oh < adapter->rx_buff_pool[i].buff_size) { - if (netif_running(adapter->netdev)) { - adapter->pool_config = 1; - ibmveth_close(adapter->netdev); - adapter->pool_config = 0; - dev->mtu = new_mtu; - vio_cmo_set_dev_desired(viodev, - ibmveth_get_desired_dma - (viodev)); - return ibmveth_open(adapter->netdev); - } dev->mtu = new_mtu; vio_cmo_set_dev_desired(viodev, ibmveth_get_desired_dma (viodev)); + if (need_restart) { + return ibmveth_open(adapter->netdev); + } return 0; } } + + if (need_restart && (rc = ibmveth_open(adapter->netdev))) + return rc; + return -EINVAL; } |