diff options
Diffstat (limited to 'drivers/net/ethernet/qualcomm/emac/emac.c')
| -rw-r--r-- | drivers/net/ethernet/qualcomm/emac/emac.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/net/ethernet/qualcomm/emac/emac.c b/drivers/net/ethernet/qualcomm/emac/emac.c index 57b35aeac51a..422289c232bc 100644 --- a/drivers/net/ethernet/qualcomm/emac/emac.c +++ b/drivers/net/ethernet/qualcomm/emac/emac.c @@ -239,15 +239,8 @@ static void emac_rx_mode_set(struct net_device *netdev) /* Change the Maximum Transfer Unit (MTU) */ static int emac_change_mtu(struct net_device *netdev, int new_mtu) { - unsigned int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; struct emac_adapter *adpt = netdev_priv(netdev); - if ((max_frame < EMAC_MIN_ETH_FRAME_SIZE) || - (max_frame > EMAC_MAX_ETH_FRAME_SIZE)) { - netdev_err(adpt->netdev, "error: invalid MTU setting\n"); - return -EINVAL; - } - netif_info(adpt, hw, adpt->netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); @@ -467,6 +460,12 @@ static int emac_clks_phase1_init(struct platform_device *pdev, { int ret; + /* On ACPI platforms, clocks are controlled by firmware and/or + * ACPI, not by drivers. + */ + if (has_acpi_companion(&pdev->dev)) + return 0; + ret = emac_clks_get(pdev, adpt); if (ret) return ret; @@ -492,6 +491,9 @@ static int emac_clks_phase2_init(struct platform_device *pdev, { int ret; + if (has_acpi_companion(&pdev->dev)) + return 0; + ret = clk_set_rate(adpt->clk[EMAC_CLK_TX], 125000000); if (ret) return ret; @@ -680,6 +682,12 @@ static int emac_probe(struct platform_device *pdev) netdev->vlan_features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6; + /* MTU range: 46 - 9194 */ + netdev->min_mtu = EMAC_MIN_ETH_FRAME_SIZE - + (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); + netdev->max_mtu = EMAC_MAX_ETH_FRAME_SIZE - + (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); + INIT_WORK(&adpt->work_thread, emac_work_thread); /* Initialize queues */ |