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e1000e: add support for hardware timestamping on some devices

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On 82574, 82583, 82579, I217 and I218 add support for hardware time
stamping of all or no Rx packets and Tx packets which have the
SKBTX_HW_TSTAMP flag set.  Update the .get_ts_info ethtool operation to
report the supported time stamping modes, and enable and disable hardware
time stamping with the SIOCSHWTSTAMP ioctl.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Bruce Allan 2012-12-27 08:32:33 +00:00 • committed by Jeff Kirsher
parent ffe0b2ff17
commit b67e191307
7 changed files with 462 additions and 8 deletions
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25
drivers/net/ethernet/intel/e1000e/ethtool.c
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@ -108,6 +108,7 @@ static const struct e1000_stats e1000_gstrings_stats[] = {
E1000_STAT("dropped_smbus", stats.mgpdc),
E1000_STAT("rx_dma_failed", rx_dma_failed),
E1000_STAT("tx_dma_failed", tx_dma_failed),
E1000_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
};
#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)
@ -2182,6 +2183,28 @@ static int e1000e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
return 0;
}
static int e1000e_get_ts_info(struct net_device *netdev,
struct ethtool_ts_info *info)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
ethtool_op_get_ts_info(netdev, info);
if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
return 0;
info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE);
info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
(1 << HWTSTAMP_FILTER_ALL));
return 0;
}
static const struct ethtool_ops e1000_ethtool_ops = {
.get_settings = e1000_get_settings,
.set_settings = e1000_set_settings,
@ -2209,7 +2232,7 @@ static const struct ethtool_ops e1000_ethtool_ops = {
.get_coalesce = e1000_get_coalesce,
.set_coalesce = e1000_set_coalesce,
.get_rxnfc = e1000_get_rxnfc,
.get_ts_info = ethtool_op_get_ts_info,
.get_ts_info = e1000e_get_ts_info,
.get_eee = e1000e_get_eee,
.set_eee = e1000e_set_eee,
};