diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2014-09-20 19:54:07 -0400 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2014-09-23 03:59:23 -0700 |
| commit | a211e0136c9a3653acba13ec3b9a2f49c3c44f5e (patch) | |
| tree | 9e7d5171d96efa1a0e7a2b95022a98a36619146f /drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c | |
| parent | 5f226ddb5b0c477bd512085b0b1d1052a24f0020 (diff) | |
fm10k: Add support for PTP
This change adds support for the Linux PTP Hardware clock and timestamping
functionality provided by the hardware. There are actually two cases that
this timestamping is meant to support.
The first case would be an ordinary clock scenario. In this configuration
the host interface does not have access to BAR 4. However all of the host
interfaces should be locked into the same boundary clock region and as such
they are all on the same clock anyway. With this being the case they can
synchronize among themselves and only need to adjust the offset since they
are all on the same clock with the same frequency.
The second case is a boundary clock scenario. This is a special case and
would require both BAR 4 access, and a means of presenting a netdev per
boundary region. The current plan is to use DSA at some point in the
future to provide these interfaces, but the DSA portion is still under
development.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c index 42beb89ae15d..a9bbe60347d8 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c @@ -91,6 +91,8 @@ static const struct fm10k_stats fm10k_gstrings_stats[] = { FM10K_STAT("mbx_rx_messages", hw.mbx.rx_messages), FM10K_STAT("mbx_rx_dwords", hw.mbx.rx_dwords), FM10K_STAT("mbx_rx_parse_err", hw.mbx.rx_parse_err), + + FM10K_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), }; #define FM10K_GLOBAL_STATS_LEN ARRAY_SIZE(fm10k_gstrings_stats) @@ -1006,6 +1008,33 @@ static int fm10k_set_channels(struct net_device *dev, return fm10k_setup_tc(dev, netdev_get_num_tc(dev)); } +static int fm10k_get_ts_info(struct net_device *dev, + struct ethtool_ts_info *info) +{ + struct fm10k_intfc *interface = netdev_priv(dev); + + info->so_timestamping = + SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE | + SOF_TIMESTAMPING_TX_HARDWARE | + SOF_TIMESTAMPING_RX_HARDWARE | + SOF_TIMESTAMPING_RAW_HARDWARE; + + if (interface->ptp_clock) + info->phc_index = ptp_clock_index(interface->ptp_clock); + else + info->phc_index = -1; + + 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 fm10k_ethtool_ops = { .get_strings = fm10k_get_strings, .get_sset_count = fm10k_get_sset_count, @@ -1031,6 +1060,7 @@ static const struct ethtool_ops fm10k_ethtool_ops = { .set_rxfh = fm10k_set_rssh, .get_channels = fm10k_get_channels, .set_channels = fm10k_set_channels, + .get_ts_info = fm10k_get_ts_info, }; void fm10k_set_ethtool_ops(struct net_device *dev) |