From: Daniel Mrzyglod <danielx.t.mrzyg...@intel.com>
Add additional functions to support the existing IEEE1588
functionality.
* rte_eth_timesync_write_time(): set the device clock time.
* rte_eth_timesync_read_time(): get the device clock time.
* rte_eth_timesync_adjust_time(): adjust the device clock time.
Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod at intel.com>
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
Reviewed-by: John McNamara <john.mcnamara at intel.com>
---
doc/guides/rel_notes/release_2_2.rst | 4 ++
lib/librte_ether/rte_ethdev.c | 36 +++++++++++++++++
lib/librte_ether/rte_ethdev.h | 71 ++++++++++++++++++++++++++++++++++
lib/librte_ether/rte_ether_version.map | 3 ++
4 files changed, 114 insertions(+)
diff --git a/doc/guides/rel_notes/release_2_2.rst
b/doc/guides/rel_notes/release_2_2.rst
index 59dda59..2ef6c29 100644
--- a/doc/guides/rel_notes/release_2_2.rst
+++ b/doc/guides/rel_notes/release_2_2.rst
@@ -94,6 +94,10 @@ New Features
* **Added port hotplug support to xenvirt.**
+* **Added API in in ethdev to support IEEE1588.**
+
+ Added functions to read and write and adjust system time in the NIC.
+
Resolved Issues
---------------
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index e0e1dca..daca6fa 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -3193,6 +3193,42 @@ rte_eth_timesync_read_tx_timestamp(uint8_t port_id,
struct timespec *timestamp)
}
int
+rte_eth_timesync_adjust_time(uint8_t port_id, int64_t delta)
+{
+ struct rte_eth_dev *dev;
+
+ VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+ dev = &rte_eth_devices[port_id];
+
+ FUNC_PTR_OR_ERR_RET(*dev->dev_ops->timesync_adjust_time, -ENOTSUP);
+ return (*dev->dev_ops->timesync_adjust_time)(dev, delta);
+}
+
+int
+rte_eth_timesync_read_time(uint8_t port_id, struct timespec *timestamp)
+{
+ struct rte_eth_dev *dev;
+
+ VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+ dev = &rte_eth_devices[port_id];
+
+ FUNC_PTR_OR_ERR_RET(*dev->dev_ops->timesync_read_time, -ENOTSUP);
+ return (*dev->dev_ops->timesync_read_time)(dev, timestamp);
+}
+
+int
+rte_eth_timesync_write_time(uint8_t port_id, const struct timespec *timestamp)
+{
+ struct rte_eth_dev *dev;
+
+ VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+ dev = &rte_eth_devices[port_id];
+
+ FUNC_PTR_OR_ERR_RET(*dev->dev_ops->timesync_write_time, -ENOTSUP);
+ return (*dev->dev_ops->timesync_write_time)(dev, timestamp);
+}
+
+int
rte_eth_dev_get_reg_length(uint8_t port_id)
{
struct rte_eth_dev *dev;
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 48a540d..b7be4b8 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1206,6 +1206,17 @@ typedef int (*eth_timesync_read_tx_timestamp_t)(struct
rte_eth_dev *dev,
struct timespec *timestamp);
/**< @internal Function used to read a TX IEEE1588/802.1AS timestamp. */
+typedef int (*eth_timesync_adjust_time)(struct rte_eth_dev *dev, int64_t);
+/**< @internal Function used to adjust the device clock */
+
+typedef int (*eth_timesync_read_time)(struct rte_eth_dev *dev,
+ struct timespec *timestamp);
+/**< @internal Function used to get time from the device clock. */
+
+typedef int (*eth_timesync_write_time)(struct rte_eth_dev *dev,
+ const struct timespec *timestamp);
+/**< @internal Function used to get time from the device clock */
+
typedef int (*eth_get_reg_length_t)(struct rte_eth_dev *dev);
/**< @internal Retrieve device register count */
@@ -1400,6 +1411,12 @@ struct eth_dev_ops {
/** Get DCB information */
eth_get_dcb_info get_dcb_info;
+ /** Adjust the device clock.*/
+ eth_timesync_adjust_time timesync_adjust_time;
+ /** Get the device clock time. */
+ eth_timesync_read_time timesync_read_time;
+ /** Set the device clock time. */
+ eth_timesync_write_time timesync_write_time;
};
/**
@@ -3755,6 +3772,60 @@ extern int rte_eth_timesync_read_tx_timestamp(uint8_t
port_id,
struct timespec *timestamp);
/**
+ * Adjust the timesync clock 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 delta
+ * The adjustment in nanoseconds.
+ *
+ * @return
+ * - 0: Success.
+ * - -ENODEV: The port ID is invalid.
+ * - -ENOTSUP: The function is not supported by the Ethernet driver.
+ */
+extern int rte_eth_timesync_adjust_time(uint8_t port_id, int64_t delta);
+
+/**
+ * Read the time from the timesync clock 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 time
+ * Pointer to the timespec struct that holds the time.
+ *
+ * @return
+ * - 0: Success.
+ */
+extern int rte_eth_timesync_read_time(uint8_t port_id, struct timespec *time);
+
+/**
+ * Set the time of the timesync clock 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 time
+ * Pointer to the timespec struct that holds the time.
+ *
+ * @return
+ * - 0: Success.
+ * - -EINVAL: No timestamp is available.
+ * - -ENODEV: The port ID is invalid.
+ * - -ENOTSUP: The function is not supported by the Ethernet driver.
+ */
+extern int rte_eth_timesync_write_time(uint8_t port_id,
+ const struct timespec *time);
+
+/**
* Copy pci device info to the Ethernet device data.
*
* @param eth_dev
diff --git a/lib/librte_ether/rte_ether_version.map
b/lib/librte_ether/rte_ether_version.map
index 9149aa7..57ad1ef 100644
--- a/lib/librte_ether/rte_ether_version.map
+++ b/lib/librte_ether/rte_ether_version.map
@@ -135,5 +135,8 @@ DPDK_2.2 {
rte_eth_dev_get_dcb_info;
rte_eth_rx_queue_info_get;
rte_eth_tx_queue_info_get;
+ rte_eth_timesync_adjust_time;
+ rte_eth_timesync_read_time;
+ rte_eth_timesync_write_time;
} DPDK_2.1;
--
1.8.1.4
