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Diffstat (limited to 'drivers/net/ethernet/intel/e1000e')
-rw-r--r--drivers/net/ethernet/intel/e1000e/82571.c2
-rw-r--r--drivers/net/ethernet/intel/e1000e/ich8lan.c23
-rw-r--r--drivers/net/ethernet/intel/e1000e/netdev.c32
3 files changed, 35 insertions, 22 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c
index dc79ed85030b..32e77755a9c6 100644
--- a/drivers/net/ethernet/intel/e1000e/82571.c
+++ b/drivers/net/ethernet/intel/e1000e/82571.c
@@ -2010,7 +2010,7 @@ const struct e1000_info e1000_82573_info = {
.flags2 = FLAG2_DISABLE_ASPM_L1
| FLAG2_DISABLE_ASPM_L0S,
.pba = 20,
- .max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN,
+ .max_hw_frame_size = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN,
.get_variants = e1000_get_variants_82571,
.mac_ops = &e82571_mac_ops,
.phy_ops = &e82_phy_ops_m88,
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 9d81c0317433..e18443a00bdb 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -1015,7 +1015,7 @@ static s32 e1000_platform_pm_pch_lpt(struct e1000_hw *hw, bool link)
u16 max_snoop, max_nosnoop;
u16 max_ltr_enc; /* max LTR latency encoded */
s64 lat_ns; /* latency (ns) */
- s64 value;
+ u64 value;
u32 rxa;
if (!hw->adapter->max_frame_size) {
@@ -1042,12 +1042,13 @@ static s32 e1000_platform_pm_pch_lpt(struct e1000_hw *hw, bool link)
*/
lat_ns = ((s64)rxa * 1024 -
(2 * (s64)hw->adapter->max_frame_size)) * 8 * 1000;
- if (lat_ns < 0)
- lat_ns = 0;
- else
- do_div(lat_ns, speed);
+ if (lat_ns < 0) {
+ value = 0;
+ } else {
+ value = lat_ns;
+ do_div(value, speed);
+ }
- value = lat_ns;
while (value > PCI_LTR_VALUE_MASK) {
scale++;
value = DIV_ROUND_UP(value, (1 << 5));
@@ -1563,7 +1564,7 @@ static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
((adapter->hw.mac.type >= e1000_pch2lan) &&
(!(er32(CTRL_EXT) & E1000_CTRL_EXT_LSECCK)))) {
adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES;
- adapter->max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN;
+ adapter->max_hw_frame_size = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;
hw->mac.ops.blink_led = NULL;
}
@@ -5681,7 +5682,7 @@ const struct e1000_info e1000_ich8_info = {
| FLAG_HAS_FLASH
| FLAG_APME_IN_WUC,
.pba = 8,
- .max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN,
+ .max_hw_frame_size = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN,
.get_variants = e1000_get_variants_ich8lan,
.mac_ops = &ich8_mac_ops,
.phy_ops = &ich8_phy_ops,
@@ -5754,7 +5755,7 @@ const struct e1000_info e1000_pch2_info = {
.flags2 = FLAG2_HAS_PHY_STATS
| FLAG2_HAS_EEE,
.pba = 26,
- .max_hw_frame_size = 9018,
+ .max_hw_frame_size = 9022,
.get_variants = e1000_get_variants_ich8lan,
.mac_ops = &ich8_mac_ops,
.phy_ops = &ich8_phy_ops,
@@ -5774,7 +5775,7 @@ const struct e1000_info e1000_pch_lpt_info = {
.flags2 = FLAG2_HAS_PHY_STATS
| FLAG2_HAS_EEE,
.pba = 26,
- .max_hw_frame_size = 9018,
+ .max_hw_frame_size = 9022,
.get_variants = e1000_get_variants_ich8lan,
.mac_ops = &ich8_mac_ops,
.phy_ops = &ich8_phy_ops,
@@ -5794,7 +5795,7 @@ const struct e1000_info e1000_pch_spt_info = {
.flags2 = FLAG2_HAS_PHY_STATS
| FLAG2_HAS_EEE,
.pba = 26,
- .max_hw_frame_size = 9018,
+ .max_hw_frame_size = 9022,
.get_variants = e1000_get_variants_ich8lan,
.mac_ops = &ich8_mac_ops,
.phy_ops = &ich8_phy_ops,
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index c509a5c900f5..7dd2c11c3f61 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -3807,7 +3807,7 @@ void e1000e_reset(struct e1000_adapter *adapter)
/* reset Packet Buffer Allocation to default */
ew32(PBA, pba);
- if (adapter->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) {
+ if (adapter->max_frame_size > (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)) {
/* To maintain wire speed transmits, the Tx FIFO should be
* large enough to accommodate two full transmit packets,
* rounded up to the next 1KB and expressed in KB. Likewise,
@@ -4196,9 +4196,9 @@ static int e1000_sw_init(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
- adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN;
+ adapter->rx_buffer_len = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;
adapter->rx_ps_bsize0 = 128;
- adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
+ adapter->max_frame_size = netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
adapter->tx_ring_count = E1000_DEFAULT_TXD;
adapter->rx_ring_count = E1000_DEFAULT_RXD;
@@ -5781,17 +5781,17 @@ struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,
static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
- int max_frame = new_mtu + VLAN_HLEN + ETH_HLEN + ETH_FCS_LEN;
+ int max_frame = new_mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
/* Jumbo frame support */
- if ((max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) &&
+ if ((max_frame > (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)) &&
!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
e_err("Jumbo Frames not supported.\n");
return -EINVAL;
}
/* Supported frame sizes */
- if ((new_mtu < ETH_ZLEN + ETH_FCS_LEN + VLAN_HLEN) ||
+ if ((new_mtu < (VLAN_ETH_ZLEN + ETH_FCS_LEN)) ||
(max_frame > adapter->max_hw_frame_size)) {
e_err("Unsupported MTU setting\n");
return -EINVAL;
@@ -5831,10 +5831,8 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
adapter->rx_buffer_len = 4096;
/* adjust allocation if LPE protects us, and we aren't using SBP */
- if ((max_frame == ETH_FRAME_LEN + ETH_FCS_LEN) ||
- (max_frame == ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN))
- adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN
- + ETH_FCS_LEN;
+ if (max_frame <= (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN))
+ adapter->rx_buffer_len = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;
if (netif_running(netdev))
e1000e_up(adapter);
@@ -6678,6 +6676,19 @@ static void e1000_eeprom_checks(struct e1000_adapter *adapter)
}
}
+static netdev_features_t e1000_fix_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* Jumbo frame workaround on 82579 and newer requires CRC be stripped */
+ if ((hw->mac.type >= e1000_pch2lan) && (netdev->mtu > ETH_DATA_LEN))
+ features &= ~NETIF_F_RXFCS;
+
+ return features;
+}
+
static int e1000_set_features(struct net_device *netdev,
netdev_features_t features)
{
@@ -6734,6 +6745,7 @@ static const struct net_device_ops e1000e_netdev_ops = {
.ndo_poll_controller = e1000_netpoll,
#endif
.ndo_set_features = e1000_set_features,
+ .ndo_fix_features = e1000_fix_features,
};
/**
generated by cgit (git 2.34.1) at 2025-06-01 04:05:33 +0000