From: Gerhard Engleder <gerhard@engleder-embedded.com>
To: richardcochran@gmail.com, yangbo.lu@nxp.com, davem@davemloft.net,
kuba@kernel.org
Cc: mlichvar@redhat.com, vinicius.gomes@intel.com,
netdev@vger.kernel.org,
Gerhard Engleder <gerhard@engleder-embedded.com>
Subject: [PATCH net-next v1 4/6] ethtool: Add kernel API for PHC index
Date: Tue, 22 Mar 2022 22:07:20 +0100 [thread overview]
Message-ID: <20220322210722.6405-5-gerhard@engleder-embedded.com> (raw)
In-Reply-To: <20220322210722.6405-1-gerhard@engleder-embedded.com>
Add a new function, which returns the physical clock index of a
networking device. This function will be used to get the physical clock
of a device for timestamp manipulation in the receive path.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
---
include/linux/ethtool.h | 8 ++++++++
net/ethtool/common.c | 13 +++++++++++++
2 files changed, 21 insertions(+)
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 4af58459a1e7..e107069f37a4 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -820,6 +820,14 @@ void
ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings,
enum ethtool_link_mode_bit_indices link_mode);
+/**
+ * ethtool_get_phc - Get phc index
+ * @dev: pointer to net_device structure
+ *
+ * Return index of phc
+ */
+int ethtool_get_phc(struct net_device *dev);
+
/**
* ethtool_get_phc_vclocks - Derive phc vclocks information, and caller
* is responsible to free memory of vclock_index
diff --git a/net/ethtool/common.c b/net/ethtool/common.c
index 0c5210015911..8218e3b3e98a 100644
--- a/net/ethtool/common.c
+++ b/net/ethtool/common.c
@@ -557,6 +557,19 @@ int __ethtool_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
return 0;
}
+int ethtool_get_phc(struct net_device *dev)
+{
+ struct ethtool_ts_info info;
+ int ret;
+
+ ret = __ethtool_get_ts_info(dev, &info);
+ if (ret)
+ return ret;
+
+ return info.phc_index;
+}
+EXPORT_SYMBOL(ethtool_get_phc);
+
int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index)
{
struct ethtool_ts_info info = { };
--
2.20.1
next prev parent reply other threads:[~2022-03-22 21:07 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-22 21:07 [PATCH net-next v1 0/6] ptp: Support hardware clocks with additional free running time Gerhard Engleder
2022-03-22 21:07 ` [PATCH net-next v1 1/6] ptp: Add cycles support for virtual clocks Gerhard Engleder
2022-03-24 13:43 ` Richard Cochran
2022-03-24 19:39 ` Gerhard Engleder
2022-03-22 21:07 ` [PATCH net-next v1 2/6] ptp: Request cycles for TX timestamp Gerhard Engleder
2022-03-24 13:49 ` Richard Cochran
2022-03-24 13:55 ` Miroslav Lichvar
2022-03-24 19:43 ` Gerhard Engleder
2022-03-22 21:07 ` [PATCH net-next v1 3/6] ptp: Pass hwtstamp to ptp_convert_timestamp() Gerhard Engleder
2022-03-24 13:50 ` Richard Cochran
2022-03-22 21:07 ` Gerhard Engleder [this message]
2022-03-24 13:51 ` [PATCH net-next v1 4/6] ethtool: Add kernel API for PHC index Richard Cochran
2022-03-22 21:07 ` [PATCH net-next v1 5/6] ptp: Support late timestamp determination Gerhard Engleder
2022-03-23 0:54 ` kernel test robot
2022-03-23 1:05 ` kernel test robot
2022-03-23 2:06 ` kernel test robot
2022-03-24 14:01 ` Richard Cochran
2022-03-24 19:52 ` Gerhard Engleder
2022-03-25 0:04 ` Richard Cochran
2022-03-25 0:08 ` Richard Cochran
2022-03-25 20:51 ` Gerhard Engleder
2022-03-26 0:27 ` Vinicius Costa Gomes
2022-03-22 21:07 ` [PATCH net-next v1 6/6] tsnep: Add physical clock cycles support Gerhard Engleder
2022-03-25 0:01 ` [PATCH net-next v1 0/6] ptp: Support hardware clocks with additional free running time Vinicius Costa Gomes
2022-03-25 22:01 ` Gerhard Engleder
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