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igb: Support for 100base-fx SFP

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This patch adds support for 100base-fx SFP and report proper link speed/duplex
via Ethtool.

v2: fix smatch warnings

CC: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Akeem G. Abodunrin 2013-04-05 16:49:06 +00:00 committed by Jeff Kirsher
parent 33243fb086
commit f502ef7d77
3 changed files with 50 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/intel/igb/e1000_hw.h
View File

@ -98,7 +98,8 @@ enum e1000_mac_type {
enum e1000_media_type {
e1000_media_type_unknown = 0,
e1000_media_type_copper = 1,
e1000_media_type_internal_serdes = 2,
e1000_media_type_fiber = 2,
e1000_media_type_internal_serdes = 3,
e1000_num_media_types
};

48
drivers/net/ethernet/intel/igb/igb_ethtool.c
View File

@ -178,27 +178,33 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
ecmd->port = PORT_TP;
ecmd->phy_address = hw->phy.addr;
ecmd->transceiver = XCVR_INTERNAL;
} else {
ecmd->supported = (SUPPORTED_1000baseT_Full |
SUPPORTED_100baseT_Full |
SUPPORTED_Autoneg |
SUPPORTED_FIBRE |
SUPPORTED_Autoneg);
SUPPORTED_Pause);
ecmd->advertising = (ADVERTISED_1000baseT_Full |
ADVERTISED_FIBRE |
ADVERTISED_Autoneg |
ADVERTISED_Pause);
ecmd->advertising = ADVERTISED_FIBRE;
if (adapter->link_speed == SPEED_100)
ecmd->advertising = ADVERTISED_100baseT_Full;
else if (adapter->link_speed == SPEED_1000)
ecmd->advertising = ADVERTISED_1000baseT_Full;
if (hw->mac.autoneg == 1)
ecmd->advertising |= ADVERTISED_Autoneg;
ecmd->port = PORT_FIBRE;
ecmd->transceiver = XCVR_EXTERNAL;
}
ecmd->transceiver = XCVR_INTERNAL;
status = rd32(E1000_STATUS);
if (status & E1000_STATUS_LU) {
if ((status & E1000_STATUS_SPEED_1000) ||
hw->phy.media_type != e1000_media_type_copper)
if (status & E1000_STATUS_SPEED_1000)
ethtool_cmd_speed_set(ecmd, SPEED_1000);
else if (status & E1000_STATUS_SPEED_100)
ethtool_cmd_speed_set(ecmd, SPEED_100);
@ -215,7 +221,11 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
ecmd->duplex = -1;
}
ecmd->autoneg = hw->mac.autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
if ((hw->phy.media_type == e1000_media_type_fiber) ||
hw->mac.autoneg)
ecmd->autoneg = AUTONEG_ENABLE;
else
ecmd->autoneg = AUTONEG_DISABLE;
/* MDI-X => 2; MDI =>1; Invalid =>0 */
if (hw->phy.media_type == e1000_media_type_copper)
@ -266,9 +276,21 @@ static int igb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
if (ecmd->autoneg == AUTONEG_ENABLE) {
hw->mac.autoneg = 1;
hw->phy.autoneg_advertised = ecmd->advertising |
ADVERTISED_TP |
ADVERTISED_Autoneg;
if (hw->phy.media_type == e1000_media_type_fiber) {
hw->phy.autoneg_advertised = ecmd->advertising |
ADVERTISED_FIBRE |
ADVERTISED_Autoneg;
if (adapter->link_speed == SPEED_1000)
hw->phy.autoneg_advertised =
ADVERTISED_1000baseT_Full;
else if (adapter->link_speed == SPEED_100)
hw->phy.autoneg_advertised =
ADVERTISED_100baseT_Full;
} else {
hw->phy.autoneg_advertised = ecmd->advertising |
ADVERTISED_TP |
ADVERTISED_Autoneg;
}
ecmd->advertising = hw->phy.autoneg_advertised;
if (adapter->fc_autoneg)
hw->fc.requested_mode = e1000_fc_default;

18
drivers/net/ethernet/intel/igb/igb_main.c
View File

@ -7008,11 +7008,19 @@ int igb_set_spd_dplx(struct igb_adapter *adapter, u32 spd, u8 dplx)
if ((spd & 1) || (dplx & ~1))
goto err_inval;
/* Fiber NIC's only allow 1000 Gbps Full duplex */
if ((adapter->hw.phy.media_type == e1000_media_type_internal_serdes) &&
spd != SPEED_1000 &&
dplx != DUPLEX_FULL)
goto err_inval;
/* Fiber NIC's only allow 1000 gbps Full duplex
* and 100Mbps Full duplex for 100baseFx sfp
*/
if (adapter->hw.phy.media_type == e1000_media_type_internal_serdes) {
switch (spd + dplx) {
case SPEED_10 + DUPLEX_HALF:
case SPEED_10 + DUPLEX_FULL:
case SPEED_100 + DUPLEX_HALF:
goto err_inval;
default:
break;
}
}
switch (spd + dplx) {
case SPEED_10 + DUPLEX_HALF: