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| author | Michal Kubecek <mkubecek@suse.cz> | 2020-03-28 02:01:58 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-03-30 08:32:37 +0300 |
| commit | 5b071c59ede04db200d9eccb97701261461e89bf (patch) | |
| tree | c1f74f356a90c2cc80fbf14e06981ffd1a89b2f9 /Documentation/networking/ethtool-netlink.rst | |
| parent | f76510b458a52023e96b3a700a97ffb526de17dc (diff) | |
| download | linux-5b071c59ede04db200d9eccb97701261461e89bf.tar.xz | |
ethtool: provide timestamping information with TSINFO_GET request
Implement TSINFO_GET request to get timestamping information for a network
device. This is traditionally available via ETHTOOL_GET_TS_INFO ioctl
request.
Move part of ethtool_get_ts_info() into common.c so that ioctl and netlink
code use the same logic to get timestamping information from the device.
v3: use "TSINFO" rather than "TIMESTAMP", suggested by Richard Cochran
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking/ethtool-netlink.rst')
| -rw-r--r-- | Documentation/networking/ethtool-netlink.rst | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst index f1950a0a6c93..567326491f80 100644 --- a/Documentation/networking/ethtool-netlink.rst +++ b/Documentation/networking/ethtool-netlink.rst @@ -203,6 +203,7 @@ Userspace to kernel: ``ETHTOOL_MSG_PAUSE_SET`` set pause parameters ``ETHTOOL_MSG_EEE_GET`` get EEE settings ``ETHTOOL_MSG_EEE_SET`` set EEE settings + ``ETHTOOL_MSG_TSINFO_GET`` get timestamping info ===================================== ================================ Kernel to userspace: @@ -233,6 +234,7 @@ Kernel to userspace: ``ETHTOOL_MSG_PAUSE_NTF`` pause parameters ``ETHTOOL_MSG_EEE_GET_REPLY`` EEE settings ``ETHTOOL_MSG_EEE_NTF`` EEE settings + ``ETHTOOL_MSG_TSINFO_GET_REPLY`` timestamping info ===================================== ================================= ``GET`` requests are sent by userspace applications to retrieve device @@ -928,6 +930,32 @@ but only first 32 can be set at the moment as that is what the ``ethtool_ops`` callback supports. +TSINFO_GET +========== + +Gets timestamping information like ``ETHTOOL_GET_TS_INFO`` ioctl request. + +Request contents: + + ===================================== ====== ========================== + ``ETHTOOL_A_TSINFO_HEADER`` nested request header + ===================================== ====== ========================== + +Kernel response contents: + + ===================================== ====== ========================== + ``ETHTOOL_A_TSINFO_HEADER`` nested request header + ``ETHTOOL_A_TSINFO_TIMESTAMPING`` bitset SO_TIMESTAMPING flags + ``ETHTOOL_A_TSINFO_TX_TYPES`` bitset supported Tx types + ``ETHTOOL_A_TSINFO_RX_FILTERS`` bitset supported Rx filters + ``ETHTOOL_A_TSINFO_PHC_INDEX`` u32 PTP hw clock index + ===================================== ====== ========================== + +``ETHTOOL_A_TSINFO_PHC_INDEX`` is absent if there is no associated PHC (there +is no special value for this case). The bitset attributes are omitted if they +would be empty (no bit set). + + Request translation =================== @@ -1003,7 +1031,7 @@ have their netlink replacement yet. ``ETHTOOL_SET_DUMP`` n/a ``ETHTOOL_GET_DUMP_FLAG`` n/a ``ETHTOOL_GET_DUMP_DATA`` n/a - ``ETHTOOL_GET_TS_INFO`` n/a + ``ETHTOOL_GET_TS_INFO`` ``ETHTOOL_MSG_TSINFO_GET`` ``ETHTOOL_GMODULEINFO`` n/a ``ETHTOOL_GMODULEEEPROM`` n/a ``ETHTOOL_GEEE`` ``ETHTOOL_MSG_EEE_GET`` |