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ethtool: add a new command for getting PHC virtual clocks

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Add an interface for getting PHC (PTP Hardware Clock)
virtual clocks, which are based on PHC physical clock
providing hardware timestamp to network packets.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yangbo Lu 2021-06-30 16:11:56 +08:00 • committed by David S. Miller
parent acb288e804
commit c156174a67
8 changed files with 167 additions and 1 deletions
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10
net/ethtool/netlink.c
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@ -248,6 +248,7 @@ ethnl_default_requests[__ETHTOOL_MSG_USER_CNT] = {
[ETHTOOL_MSG_TSINFO_GET] = &ethnl_tsinfo_request_ops,
[ETHTOOL_MSG_MODULE_EEPROM_GET] = &ethnl_module_eeprom_request_ops,
[ETHTOOL_MSG_STATS_GET] = &ethnl_stats_request_ops,
[ETHTOOL_MSG_PHC_VCLOCKS_GET] = &ethnl_phc_vclocks_request_ops,
};
static struct ethnl_dump_ctx *ethnl_dump_context(struct netlink_callback *cb)
@ -958,6 +959,15 @@ static const struct genl_ops ethtool_genl_ops[] = {
.policy = ethnl_stats_get_policy,
.maxattr = ARRAY_SIZE(ethnl_stats_get_policy) - 1,
},
{
.cmd = ETHTOOL_MSG_PHC_VCLOCKS_GET,
.doit = ethnl_default_doit,
.start = ethnl_default_start,
.dumpit = ethnl_default_dumpit,
.done = ethnl_default_done,
.policy = ethnl_phc_vclocks_get_policy,
.maxattr = ARRAY_SIZE(ethnl_phc_vclocks_get_policy) - 1,
},
};
static const struct genl_multicast_group ethtool_nl_mcgrps[] = {