This patch introduces a new timesync API "rte_eth_timesync_adjust_freq"
which enables frequency adjustment during PTP timesync.
Signed-off-by: Simei Su <simei...@intel.com>
---
lib/ethdev/ethdev_driver.h | 5 +++++
lib/ethdev/ethdev_trace.h | 9 +++++++++
lib/ethdev/ethdev_trace_points.c | 3 +++
lib/ethdev/rte_ethdev.c | 18 ++++++++++++++++++
lib/ethdev/rte_ethdev.h | 19 +++++++++++++++++++
5 files changed, 54 insertions(+)
diff --git a/lib/ethdev/ethdev_driver.h b/lib/ethdev/ethdev_driver.h
index 2c9d615..b1451d2 100644
--- a/lib/ethdev/ethdev_driver.h
+++ b/lib/ethdev/ethdev_driver.h
@@ -633,6 +633,9 @@ typedef int (*eth_timesync_read_tx_timestamp_t)(struct
rte_eth_dev *dev,
/** @internal Function used to adjust the device clock. */
typedef int (*eth_timesync_adjust_time)(struct rte_eth_dev *dev, int64_t);
+/** @internal Function used to adjust the clock frequency. */
+typedef int (*eth_timesync_adjust_freq)(struct rte_eth_dev *dev, int64_t);
+
/** @internal Function used to get time from the device clock. */
typedef int (*eth_timesync_read_time)(struct rte_eth_dev *dev,
struct timespec *timestamp);
@@ -1344,6 +1347,8 @@ struct eth_dev_ops {
eth_timesync_read_tx_timestamp_t timesync_read_tx_timestamp;
/** Adjust the device clock */
eth_timesync_adjust_time timesync_adjust_time;
+ /** Adjust the clock frequency */
+ eth_timesync_adjust_freq timesync_adjust_freq;
/** Get the device clock time */
eth_timesync_read_time timesync_read_time;
/** Set the device clock time */
diff --git a/lib/ethdev/ethdev_trace.h b/lib/ethdev/ethdev_trace.h
index 3dc7d02..d92554b 100644
--- a/lib/ethdev/ethdev_trace.h
+++ b/lib/ethdev/ethdev_trace.h
@@ -2196,6 +2196,15 @@ RTE_TRACE_POINT_FP(
rte_trace_point_emit_int(ret);
)
+/* Called in loop in examples/ptpclient */
+RTE_TRACE_POINT_FP(
+ rte_eth_trace_timesync_adjust_freq,
+ RTE_TRACE_POINT_ARGS(uint16_t port_id, int64_t ppm, int ret),
+ rte_trace_point_emit_u16(port_id);
+ rte_trace_point_emit_i64(ppm);
+ rte_trace_point_emit_int(ret);
+)
+
/* Called in loop in app/test-flow-perf */
RTE_TRACE_POINT_FP(
rte_flow_trace_create,
diff --git a/lib/ethdev/ethdev_trace_points.c b/lib/ethdev/ethdev_trace_points.c
index 61010ca..c01b5d3 100644
--- a/lib/ethdev/ethdev_trace_points.c
+++ b/lib/ethdev/ethdev_trace_points.c
@@ -406,6 +406,9 @@
RTE_TRACE_POINT_REGISTER(rte_eth_trace_timesync_read_tx_timestamp,
RTE_TRACE_POINT_REGISTER(rte_eth_trace_timesync_adjust_time,
lib.ethdev.timesync_adjust_time)
+RTE_TRACE_POINT_REGISTER(rte_eth_trace_timesync_adjust_freq,
+ lib.ethdev.timesync_adjust_freq)
+
RTE_TRACE_POINT_REGISTER(rte_eth_trace_timesync_read_time,
lib.ethdev.timesync_read_time)
diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index 4d03255..f5934bb 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c
@@ -6017,6 +6017,24 @@ rte_eth_timesync_adjust_time(uint16_t port_id, int64_t
delta)
}
int
+rte_eth_timesync_adjust_freq(uint16_t port_id, int64_t ppm)
+{
+ struct rte_eth_dev *dev;
+ int ret;
+
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+ dev = &rte_eth_devices[port_id];
+
+ if (*dev->dev_ops->timesync_adjust_freq == NULL)
+ return -ENOTSUP;
+ ret = eth_err(port_id, (*dev->dev_ops->timesync_adjust_freq)(dev, ppm));
+
+ rte_eth_trace_timesync_adjust_freq(port_id, ppm, ret);
+
+ return ret;
+}
+
+int
rte_eth_timesync_read_time(uint16_t port_id, struct timespec *timestamp)
{
struct rte_eth_dev *dev;
diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h
index 99fe9e2..9737461 100644
--- a/lib/ethdev/rte_ethdev.h
+++ b/lib/ethdev/rte_ethdev.h
@@ -5102,6 +5102,25 @@ int rte_eth_timesync_read_tx_timestamp(uint16_t port_id,
int rte_eth_timesync_adjust_time(uint16_t port_id, int64_t delta);
/**
+ * Adjust the clock increment rate on an Ethernet device.
+ *
+ * This is usually used in conjunction with other Ethdev timesync functions to
+ * synchronize the device time using the IEEE1588/802.1AS protocol.
+ *
+ * @param port_id
+ * The port identifier of the Ethernet device.
+ * @param ppm
+ * Parts per million with 16-bit fractional field
+ *
+ * @return
+ * - 0: Success.
+ * - -ENODEV: The port ID is invalid.
+ * - -EIO: if device is removed.
+ * - -ENOTSUP: The function is not supported by the Ethernet driver.
+ */
+int rte_eth_timesync_adjust_freq(uint16_t port_id, int64_t ppm);
+
+/**
* Read the time from the timesync clock on an Ethernet device.
*
* This is usually used in conjunction with other Ethdev timesync functions to
--
2.9.5
