From: Maxim Georgiev <glipus@gmail•com>
To: kory.maincent@bootlin•com
Cc: kuba@kernel•org, netdev@vger•kernel.org, glipus@gmail•com,
maxime.chevallier@bootlin•com, vladimir.oltean@nxp•com,
vadim.fedorenko@linux•dev, richardcochran@gmail•com,
gerhard@engleder-embedded•com
Subject: [RFC PATCH v4 5/5] Implement ndo_hwtstamp_get/set methods in netdevsim driver
Date: Sat, 22 Apr 2023 21:29:08 -0600 [thread overview]
Message-ID: <20230423032908.285475-1-glipus@gmail.com> (raw)
Implementing ndo_hwtstamp_get/set methods in netdevsim driver
to use the newly introduced ndo_hwtstamp_get/setmake it respond to
SIOCGHWTSTAMP/SIOCSHWTSTAMP IOCTLs.
Also adding .get_ts_info ethtool method allowing to monitor
HW timestamp configuration values set using SIOCSHWTSTAMP·IOCTL.
Suggested-by: Jakub Kicinski <kuba@kernel•org>
Signed-off-by: Maxim Georgiev <glipus@gmail•com>
---
Notes:
Changes in V4:
- Implemented .get_ts_info·ethtool·method.
- Tested the patch using hwstamp_ctl and ethtool:
[root@centosvm kernel-net-next]# ethtool -T eni0np1
Time stamping parameters for eni0np1:
Capabilities:
software-transmit
software-receive
software-system-clock
PTP Hardware Clock: none
Hardware Transmit Timestamp Modes: none
Hardware Receive Filter Modes: none
[root@centosvm kernel-net-next]# hwstamp_ctl -i eni0np1 -t 1 -r 0
current settings:
tx_type 0
rx_filter 0
new settings:
tx_type 1
rx_filter 0
[root@centosvm kernel-net-next]# ethtool -T eni0np1
Time stamping parameters for eni0np1:
Capabilities:
software-transmit
software-receive
software-system-clock
PTP Hardware Clock: none
Hardware Transmit Timestamp Modes:
off
Hardware Receive Filter Modes: none
[root@centosvm kernel-net-next]# hwstamp_ctl -i eni0np1 -t 1 -r 14
current settings:
tx_type 1
rx_filter 0
new settings:
tx_type 1
rx_filter 14
[root@centosvm kernel-net-next]# ethtool -T eni0np1
Time stamping parameters for eni0np1:
Capabilities:
software-transmit
software-receive
software-system-clock
PTP Hardware Clock: none
Hardware Transmit Timestamp Modes:
off
Hardware Receive Filter Modes:
all
some
ptpv1-l4-event
---
drivers/net/netdevsim/ethtool.c | 11 +++++++++++
drivers/net/netdevsim/netdev.c | 24 ++++++++++++++++++++++++
drivers/net/netdevsim/netdevsim.h | 1 +
3 files changed, 36 insertions(+)
diff --git a/drivers/net/netdevsim/ethtool.c b/drivers/net/netdevsim/ethtool.c
index ffd9f84b6644..cbb8e261b759 100644
--- a/drivers/net/netdevsim/ethtool.c
+++ b/drivers/net/netdevsim/ethtool.c
@@ -140,6 +140,16 @@ nsim_set_fecparam(struct net_device *dev, struct ethtool_fecparam *fecparam)
return 0;
}
+static int nsim_get_ts_info(struct net_device *netdev,
+ struct ethtool_ts_info *info)
+{
+ struct netdevsim *ns = netdev_priv(netdev);
+
+ info->tx_types = ns->hw_tstamp_config.tx_type;
+ info->rx_filters = ns->hw_tstamp_config.rx_filter;
+ return ethtool_op_get_ts_info(netdev, info);
+}
+
static const struct ethtool_ops nsim_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_ALL_PARAMS,
.get_pause_stats = nsim_get_pause_stats,
@@ -153,6 +163,7 @@ static const struct ethtool_ops nsim_ethtool_ops = {
.set_channels = nsim_set_channels,
.get_fecparam = nsim_get_fecparam,
.set_fecparam = nsim_set_fecparam,
+ .get_ts_info = nsim_get_ts_info,
};
static void nsim_ethtool_ring_init(struct netdevsim *ns)
diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
index 35fa1ca98671..6c29dfa3bb4e 100644
--- a/drivers/net/netdevsim/netdev.c
+++ b/drivers/net/netdevsim/netdev.c
@@ -238,6 +238,28 @@ nsim_set_features(struct net_device *dev, netdev_features_t features)
return 0;
}
+static int
+nsim_hwtstamp_get(struct net_device *dev,
+ struct kernel_hwtstamp_config *kernel_config,
+ struct netlink_ext_ack *extack)
+{
+ struct netdevsim *ns = netdev_priv(dev);
+
+ *kernel_config = ns->hw_tstamp_config;
+ return 0;
+}
+
+static int
+nsim_hwtstamp_set(struct net_device *dev,
+ struct kernel_hwtstamp_config *kernel_config,
+ struct netlink_ext_ack *extack)
+{
+ struct netdevsim *ns = netdev_priv(dev);
+
+ ns->hw_tstamp_config = *kernel_config;
+ return 0;
+}
+
static const struct net_device_ops nsim_netdev_ops = {
.ndo_start_xmit = nsim_start_xmit,
.ndo_set_rx_mode = nsim_set_rx_mode,
@@ -256,6 +278,8 @@ static const struct net_device_ops nsim_netdev_ops = {
.ndo_setup_tc = nsim_setup_tc,
.ndo_set_features = nsim_set_features,
.ndo_bpf = nsim_bpf,
+ .ndo_hwtstamp_get = nsim_hwtstamp_get,
+ .ndo_hwtstamp_set = nsim_hwtstamp_set,
};
static const struct net_device_ops nsim_vf_netdev_ops = {
diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h
index 7d8ed8d8df5c..e78e88a0baa1 100644
--- a/drivers/net/netdevsim/netdevsim.h
+++ b/drivers/net/netdevsim/netdevsim.h
@@ -102,6 +102,7 @@ struct netdevsim {
} udp_ports;
struct nsim_ethtool ethtool;
+ struct kernel_hwtstamp_config hw_tstamp_config;
};
struct netdevsim *
--
2.39.2
next reply other threads:[~2023-04-23 3:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-23 3:29 Maxim Georgiev [this message]
2023-05-02 9:42 ` [RFC PATCH v4 5/5] Implement ndo_hwtstamp_get/set methods in netdevsim driver Jiri Pirko
2023-05-03 5:24 ` Max Georgiev
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