diff options
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/netdev.c')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/netdev.c | 40 |
1 files changed, 19 insertions, 21 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 7017281ba2dc..eccf1da9356b 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -4305,24 +4305,24 @@ void e1000e_reinit_locked(struct e1000_adapter *adapter) /** * e1000e_sanitize_systim - sanitize raw cycle counter reads * @hw: pointer to the HW structure - * @systim: cycle_t value read, sanitized and returned + * @systim: time value read, sanitized and returned * * Errata for 82574/82583 possible bad bits read from SYSTIMH/L: * check to see that the time is incrementing at a reasonable * rate and is a multiple of incvalue. **/ -static cycle_t e1000e_sanitize_systim(struct e1000_hw *hw, cycle_t systim) +static u64 e1000e_sanitize_systim(struct e1000_hw *hw, u64 systim) { u64 time_delta, rem, temp; - cycle_t systim_next; + u64 systim_next; u32 incvalue; int i; incvalue = er32(TIMINCA) & E1000_TIMINCA_INCVALUE_MASK; for (i = 0; i < E1000_MAX_82574_SYSTIM_REREADS; i++) { /* latch SYSTIMH on read of SYSTIML */ - systim_next = (cycle_t)er32(SYSTIML); - systim_next |= (cycle_t)er32(SYSTIMH) << 32; + systim_next = (u64)er32(SYSTIML); + systim_next |= (u64)er32(SYSTIMH) << 32; time_delta = systim_next - systim; temp = time_delta; @@ -4342,13 +4342,13 @@ static cycle_t e1000e_sanitize_systim(struct e1000_hw *hw, cycle_t systim) * e1000e_cyclecounter_read - read raw cycle counter (used by time counter) * @cc: cyclecounter structure **/ -static cycle_t e1000e_cyclecounter_read(const struct cyclecounter *cc) +static u64 e1000e_cyclecounter_read(const struct cyclecounter *cc) { struct e1000_adapter *adapter = container_of(cc, struct e1000_adapter, cc); struct e1000_hw *hw = &adapter->hw; u32 systimel, systimeh; - cycle_t systim; + u64 systim; /* SYSTIMH latching upon SYSTIML read does not work well. * This means that if SYSTIML overflows after we read it but before * we read SYSTIMH, the value of SYSTIMH has been incremented and we @@ -4368,8 +4368,8 @@ static cycle_t e1000e_cyclecounter_read(const struct cyclecounter *cc) systimel = systimel_2; } } - systim = (cycle_t)systimel; - systim |= (cycle_t)systimeh << 32; + systim = (u64)systimel; + systim |= (u64)systimeh << 32; if (adapter->flags2 & FLAG2_CHECK_SYSTIM_OVERFLOW) systim = e1000e_sanitize_systim(hw, systim); @@ -5974,19 +5974,12 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) int max_frame = new_mtu + VLAN_ETH_HLEN + ETH_FCS_LEN; /* Jumbo frame support */ - if ((max_frame > (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)) && + if ((new_mtu > ETH_DATA_LEN) && !(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) { e_err("Jumbo Frames not supported.\n"); return -EINVAL; } - /* Supported frame sizes */ - if ((new_mtu < (VLAN_ETH_ZLEN + ETH_FCS_LEN)) || - (max_frame > adapter->max_hw_frame_size)) { - e_err("Unsupported MTU setting\n"); - return -EINVAL; - } - /* Jumbo frame workaround on 82579 and newer requires CRC be stripped */ if ((adapter->hw.mac.type >= e1000_pch2lan) && !(adapter->flags2 & FLAG2_CRC_STRIPPING) && @@ -6762,13 +6755,13 @@ static void e1000_netpoll(struct net_device *netdev) e1000_intr_msix(adapter->pdev->irq, netdev); break; case E1000E_INT_MODE_MSI: - disable_irq(adapter->pdev->irq); - e1000_intr_msi(adapter->pdev->irq, netdev); + if (disable_hardirq(adapter->pdev->irq)) + e1000_intr_msi(adapter->pdev->irq, netdev); enable_irq(adapter->pdev->irq); break; default: /* E1000E_INT_MODE_LEGACY */ - disable_irq(adapter->pdev->irq); - e1000_intr(adapter->pdev->irq, netdev); + if (disable_hardirq(adapter->pdev->irq)) + e1000_intr(adapter->pdev->irq, netdev); enable_irq(adapter->pdev->irq); break; } @@ -7187,6 +7180,11 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent) netdev->vlan_features |= NETIF_F_HIGHDMA; } + /* MTU range: 68 - max_hw_frame_size */ + netdev->min_mtu = ETH_MIN_MTU; + netdev->max_mtu = adapter->max_hw_frame_size - + (VLAN_ETH_HLEN + ETH_FCS_LEN); + if (e1000e_enable_mng_pass_thru(&adapter->hw)) adapter->flags |= FLAG_MNG_PT_ENABLED; |