diff mbox series

[v6,04/10] ethdev: add simple power management API

Message ID a543f7972baef102dae017854559c3384c403aeb.1602682206.git.anatoly.burakov@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers
Series [v6,01/10] eal: add new x86 cpuid support for WAITPKG |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Burakov, Anatoly Oct. 14, 2020, 1:30 p.m. UTC 
  From: Liang Ma <liang.j.ma@intel.com>

Add a simple API to allow getting address of next RX descriptor from the
PMD, as well as release notes information.

Signed-off-by: Liang Ma <liang.j.ma@intel.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
---

Notes:
    v6:
    - Rebase on top of latest main
    - Ensure the API checks queue ID (Konstantin)
    - Removed accidental inclusion of unrelated release notes
    v5:
    - Bring function format in line with other functions in the file
    - Ensure the API is supported by the driver before calling it (Konstantin)

 doc/guides/rel_notes/release_20_11.rst   |  8 ++++++-
 lib/librte_ethdev/rte_ethdev.c           | 23 +++++++++++++++++++
 lib/librte_ethdev/rte_ethdev.h           | 26 ++++++++++++++++++++++
 lib/librte_ethdev/rte_ethdev_driver.h    | 28 ++++++++++++++++++++++++
 lib/librte_ethdev/rte_ethdev_version.map |  1 +
 5 files changed, 85 insertions(+), 1 deletion(-)

Comments

Ananyev, Konstantin Oct. 14, 2020, 5:06 p.m. UTC | #1 
> From: Liang Ma <liang.j.ma@intel.com>
> 
> Add a simple API to allow getting address of next RX descriptor from the
> PMD, as well as release notes information.
> 
> Signed-off-by: Liang Ma <liang.j.ma@intel.com>
> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
> ---
> 
> Notes:
>     v6:
>     - Rebase on top of latest main
>     - Ensure the API checks queue ID (Konstantin)
>     - Removed accidental inclusion of unrelated release notes
>     v5:
>     - Bring function format in line with other functions in the file
>     - Ensure the API is supported by the driver before calling it (Konstantin)
> 
>  doc/guides/rel_notes/release_20_11.rst   |  8 ++++++-
>  lib/librte_ethdev/rte_ethdev.c           | 23 +++++++++++++++++++
>  lib/librte_ethdev/rte_ethdev.h           | 26 ++++++++++++++++++++++
>  lib/librte_ethdev/rte_ethdev_driver.h    | 28 ++++++++++++++++++++++++
>  lib/librte_ethdev/rte_ethdev_version.map |  1 +
>  5 files changed, 85 insertions(+), 1 deletion(-)
> 
> diff --git a/doc/guides/rel_notes/release_20_11.rst b/doc/guides/rel_notes/release_20_11.rst
> index 0925123e9c..ca4f43f7f9 100644
> --- a/doc/guides/rel_notes/release_20_11.rst
> +++ b/doc/guides/rel_notes/release_20_11.rst
> @@ -71,7 +71,13 @@ New Features
>  * **Added the FEC API, for a generic FEC query and config.**
> 
>    Added the FEC API which provides functions for query FEC capabilities and
> -  current FEC mode from device. Also, API for configuring FEC mode is also provided.
> +  current FEC mode from device. Also, API for configuring FEC mode is also
> +  provided.
> +
> +* **ethdev: add 1 new EXPERIMENTAL API for PMD power management.**
> +
> +  * ``rte_eth_get_wake_addr()``
> +  * add new eth_dev_ops ``get_wake_addr``
> 
>  * **Updated Broadcom bnxt driver.**
> 
> diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
> index 59beb8aec2..5d19c97a3e 100644
> --- a/lib/librte_ethdev/rte_ethdev.c
> +++ b/lib/librte_ethdev/rte_ethdev.c
> @@ -4844,6 +4844,29 @@ rte_eth_tx_burst_mode_get(uint16_t port_id, uint16_t queue_id,
>  		       dev->dev_ops->tx_burst_mode_get(dev, queue_id, mode));
>  }
> 
> +int
> +rte_eth_get_wake_addr(uint16_t port_id, uint16_t queue_id,
> +		volatile void **wake_addr, uint64_t *expected, uint64_t *mask,
> +		uint8_t *data_sz)
> +{
> +	struct rte_eth_dev *dev;
> +
> +	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
> +
> +	dev = &rte_eth_devices[port_id];
> +
> +	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->get_wake_addr, -ENOTSUP);
> +
> +	if (queue_id >= dev->data->nb_tx_queues) {

nb_rx_queues

> +		RTE_ETHDEV_LOG(ERR, "Invalid TX queue_id=%u\n", queue_id);

RX not TX

> +		return -EINVAL;
> +	}
> +
> +	return eth_err(port_id,
> +		dev->dev_ops->get_wake_addr(dev->data->rx_queues[queue_id],
> +			wake_addr, expected, mask, data_sz));
> +}
> +
>  int
>  rte_eth_dev_set_mc_addr_list(uint16_t port_id,
>  			     struct rte_ether_addr *mc_addr_set,
> diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
> index 3a31f94367..005faba455 100644
> --- a/lib/librte_ethdev/rte_ethdev.h
> +++ b/lib/librte_ethdev/rte_ethdev.h
> @@ -4119,6 +4119,32 @@ __rte_experimental
>  int rte_eth_tx_burst_mode_get(uint16_t port_id, uint16_t queue_id,
>  	struct rte_eth_burst_mode *mode);
> 
> +/**
> + * Retrieve the wake up address for the receive queue.
> + *
> + * @param port_id
> + *   The port identifier of the Ethernet device.
> + * @param queue_id
> + *   The Rx queue on the Ethernet device for which information
> + *   will be retrieved.
> + * @param wake_addr
> + *   The pointer point to the address which is used for monitoring.
> + * @param expected
> + *   The pointer point to value to be expected when descriptor is set.
> + * @param mask
> + *   The pointer point to comparison bitmask for the expected value.
> + *
> + * @return
> + *   - 0: Success.
> + *   -ENOTSUP: Operation not supported.
> + *   -EINVAL: Invalid parameters.
> + *   -ENODEV: Invalid port ID.
> + */
> +__rte_experimental
> +int rte_eth_get_wake_addr(uint16_t port_id, uint16_t queue_id,
> +		volatile void **wake_addr, uint64_t *expected, uint64_t *mask,
> +		uint8_t *data_sz);
> +
>  /**
>   * Retrieve device registers and register attributes (number of registers and
>   * register size)
> diff --git a/lib/librte_ethdev/rte_ethdev_driver.h b/lib/librte_ethdev/rte_ethdev_driver.h
> index 35cc4fb186..76b179de42 100644
> --- a/lib/librte_ethdev/rte_ethdev_driver.h
> +++ b/lib/librte_ethdev/rte_ethdev_driver.h
> @@ -655,6 +655,32 @@ typedef int (*eth_fec_get_t)(struct rte_eth_dev *dev,
>   */
>  typedef int (*eth_fec_set_t)(struct rte_eth_dev *dev, uint32_t fec_capa);
> 
> +/**
> + * @internal
> + * Get address of memory location whose contents will change whenever there is
> + * new data to be received on an RX queue.
> + *
> + * @param rxq
> + *   Ethdev queue pointer.
> + * @param tail_desc_addr
> + *   The pointer point to where the address will be stored.
> + * @param expected
> + *   The pointer point to value to be expected when descriptor is set.
> + * @param mask
> + *   The pointer point to comparison bitmask for the expected value.
> + * @param data_sz
> + *   Data size for the expected value (can be 1, 2, 4, or 8 bytes)
> + * @return
> + *   Negative errno value on error, 0 on success.
> + *
> + * @retval 0
> + *   Success
> + * @retval -EINVAL
> + *   Invalid parameters
> + */
> +typedef int (*eth_get_wake_addr_t)(void *rxq, volatile void **tail_desc_addr,
> +		uint64_t *expected, uint64_t *mask, uint8_t *data_sz);
> +
>  /**
>   * @internal A structure containing the functions exported by an Ethernet driver.
>   */
> @@ -801,6 +827,8 @@ struct eth_dev_ops {
>  	/**< Get Forward Error Correction(FEC) mode. */
>  	eth_fec_set_t fec_set;
>  	/**< Set Forward Error Correction(FEC) mode. */
> +	eth_get_wake_addr_t get_wake_addr;
> +	/**< Get next RX queue ring entry address. */
>  };
> 
>  /**
> diff --git a/lib/librte_ethdev/rte_ethdev_version.map b/lib/librte_ethdev/rte_ethdev_version.map
> index f8a0945812..6c2ea5996d 100644
> --- a/lib/librte_ethdev/rte_ethdev_version.map
> +++ b/lib/librte_ethdev/rte_ethdev_version.map
> @@ -232,6 +232,7 @@ EXPERIMENTAL {
>  	rte_eth_fec_get_capability;
>  	rte_eth_fec_get;
>  	rte_eth_fec_set;
> +	rte_eth_get_wake_addr;
>  };
> 
>  INTERNAL {
> --
> 2.17.1
Liang, Ma Oct. 15, 2020, 11:29 a.m. UTC | #2 
On 14 Oct 14:30, Anatoly Burakov wrote:
> From: Liang Ma <liang.j.ma@intel.com>
> 
> Add a simple API to allow getting address of next RX descriptor from the
> PMD, as well as release notes information.
> 
> Signed-off-by: Liang Ma <liang.j.ma@intel.com>
> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
<snip>
> diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
> index 3a31f94367..005faba455 100644
> --- a/lib/librte_ethdev/rte_ethdev.h
> +++ b/lib/librte_ethdev/rte_ethdev.h
> @@ -4119,6 +4119,32 @@ __rte_experimental
>  int rte_eth_tx_burst_mode_get(uint16_t port_id, uint16_t queue_id,
>  	struct rte_eth_burst_mode *mode);
>  
> +/**
> + * Retrieve the wake up address for the receive queue.
> + *
> + * @param port_id
> + *   The port identifier of the Ethernet device.
> + * @param queue_id
> + *   The Rx queue on the Ethernet device for which information
> + *   will be retrieved.
> + * @param wake_addr
> + *   The pointer point to the address which is used for monitoring.
> + * @param expected
> + *   The pointer point to value to be expected when descriptor is set.
> + * @param mask
> + *   The pointer point to comparison bitmask for the expected value.
> + *
need add the comment of data_sz.
> + * @return
> + *   - 0: Success.
> + *   -ENOTSUP: Operation not supported.
> + *   -EINVAL: Invalid parameters.
> + *   -ENODEV: Invalid port ID.
> + */
> +__rte_experimental
> +int rte_eth_get_wake_addr(uint16_t port_id, uint16_t queue_id,
> +		volatile void **wake_addr, uint64_t *expected, uint64_t *mask,
> +		uint8_t *data_sz);
> +
>  /**
>   * Retrieve device registers and register attributes (number of registers and
>   * register size)
> diff --git a/lib/librte_ethdev/rte_ethdev_driver.h b/lib/librte_ethdev/rte_ethdev_driver.h
> index 35cc4fb186..76b179de42 100644
> --- a/lib/librte_ethdev/rte_ethdev_driver.h
> +++ b/lib/librte_ethdev/rte_ethdev_driver.h
> @@ -655,6 +655,32 @@ typedef int (*eth_fec_get_t)(struct rte_eth_dev *dev,
>   */
>  typedef int (*eth_fec_set_t)(struct rte_eth_dev *dev, uint32_t fec_capa);
>  
> +/**
> + * @internal
> + * Get address of memory location whose contents will change whenever there is
> + * new data to be received on an RX queue.
> + *
> + * @param rxq
> + *   Ethdev queue pointer.
> + * @param tail_desc_addr
> + *   The pointer point to where the address will be stored.
> + * @param expected
> + *   The pointer point to value to be expected when descriptor is set.
> + * @param mask
> + *   The pointer point to comparison bitmask for the expected value.
> + * @param data_sz
> + *   Data size for the expected value (can be 1, 2, 4, or 8 bytes)
> + * @return
> + *   Negative errno value on error, 0 on success.
> + *
> + * @retval 0
> + *   Success
> + * @retval -EINVAL
> + *   Invalid parameters
> + */
> +typedef int (*eth_get_wake_addr_t)(void *rxq, volatile void **tail_desc_addr,
> +		uint64_t *expected, uint64_t *mask, uint8_t *data_sz);
> +
>  /**
>   * @internal A structure containing the functions exported by an Ethernet driver.
>   */
> @@ -801,6 +827,8 @@ struct eth_dev_ops {
>  	/**< Get Forward Error Correction(FEC) mode. */
>  	eth_fec_set_t fec_set;
>  	/**< Set Forward Error Correction(FEC) mode. */
> +	eth_get_wake_addr_t get_wake_addr;
> +	/**< Get next RX queue ring entry address. */
>  };
>  
>  /**
> diff --git a/lib/librte_ethdev/rte_ethdev_version.map b/lib/librte_ethdev/rte_ethdev_version.map
> index f8a0945812..6c2ea5996d 100644
> --- a/lib/librte_ethdev/rte_ethdev_version.map
> +++ b/lib/librte_ethdev/rte_ethdev_version.map
> @@ -232,6 +232,7 @@ EXPERIMENTAL {
>  	rte_eth_fec_get_capability;
>  	rte_eth_fec_get;
>  	rte_eth_fec_set;
> +	rte_eth_get_wake_addr;
>  };
>  
>  INTERNAL {
> -- 
> 2.17.1
diff mbox series

Patch

diff --git a/doc/guides/rel_notes/release_20_11.rst b/doc/guides/rel_notes/release_20_11.rst
index 0925123e9c..ca4f43f7f9 100644
--- a/doc/guides/rel_notes/release_20_11.rst
+++ b/doc/guides/rel_notes/release_20_11.rst
@@ -71,7 +71,13 @@  New Features
 * **Added the FEC API, for a generic FEC query and config.**
 
   Added the FEC API which provides functions for query FEC capabilities and
-  current FEC mode from device. Also, API for configuring FEC mode is also provided.
+  current FEC mode from device. Also, API for configuring FEC mode is also
+  provided.
+
+* **ethdev: add 1 new EXPERIMENTAL API for PMD power management.**
+
+  * ``rte_eth_get_wake_addr()``
+  * add new eth_dev_ops ``get_wake_addr``
 
 * **Updated Broadcom bnxt driver.**
 
diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 59beb8aec2..5d19c97a3e 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -4844,6 +4844,29 @@  rte_eth_tx_burst_mode_get(uint16_t port_id, uint16_t queue_id,
 		       dev->dev_ops->tx_burst_mode_get(dev, queue_id, mode));
 }
 
+int
+rte_eth_get_wake_addr(uint16_t port_id, uint16_t queue_id,
+		volatile void **wake_addr, uint64_t *expected, uint64_t *mask,
+		uint8_t *data_sz)
+{
+	struct rte_eth_dev *dev;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+
+	dev = &rte_eth_devices[port_id];
+
+	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->get_wake_addr, -ENOTSUP);
+
+	if (queue_id >= dev->data->nb_tx_queues) {
+		RTE_ETHDEV_LOG(ERR, "Invalid TX queue_id=%u\n", queue_id);
+		return -EINVAL;
+	}
+
+	return eth_err(port_id,
+		dev->dev_ops->get_wake_addr(dev->data->rx_queues[queue_id],
+			wake_addr, expected, mask, data_sz));
+}
+
 int
 rte_eth_dev_set_mc_addr_list(uint16_t port_id,
 			     struct rte_ether_addr *mc_addr_set,
diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
index 3a31f94367..005faba455 100644
--- a/lib/librte_ethdev/rte_ethdev.h
+++ b/lib/librte_ethdev/rte_ethdev.h
@@ -4119,6 +4119,32 @@  __rte_experimental
 int rte_eth_tx_burst_mode_get(uint16_t port_id, uint16_t queue_id,
 	struct rte_eth_burst_mode *mode);
 
+/**
+ * Retrieve the wake up address for the receive queue.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param queue_id
+ *   The Rx queue on the Ethernet device for which information
+ *   will be retrieved.
+ * @param wake_addr
+ *   The pointer point to the address which is used for monitoring.
+ * @param expected
+ *   The pointer point to value to be expected when descriptor is set.
+ * @param mask
+ *   The pointer point to comparison bitmask for the expected value.
+ *
+ * @return
+ *   - 0: Success.
+ *   -ENOTSUP: Operation not supported.
+ *   -EINVAL: Invalid parameters.
+ *   -ENODEV: Invalid port ID.
+ */
+__rte_experimental
+int rte_eth_get_wake_addr(uint16_t port_id, uint16_t queue_id,
+		volatile void **wake_addr, uint64_t *expected, uint64_t *mask,
+		uint8_t *data_sz);
+
 /**
  * Retrieve device registers and register attributes (number of registers and
  * register size)
diff --git a/lib/librte_ethdev/rte_ethdev_driver.h b/lib/librte_ethdev/rte_ethdev_driver.h
index 35cc4fb186..76b179de42 100644
--- a/lib/librte_ethdev/rte_ethdev_driver.h
+++ b/lib/librte_ethdev/rte_ethdev_driver.h
@@ -655,6 +655,32 @@  typedef int (*eth_fec_get_t)(struct rte_eth_dev *dev,
  */
 typedef int (*eth_fec_set_t)(struct rte_eth_dev *dev, uint32_t fec_capa);
 
+/**
+ * @internal
+ * Get address of memory location whose contents will change whenever there is
+ * new data to be received on an RX queue.
+ *
+ * @param rxq
+ *   Ethdev queue pointer.
+ * @param tail_desc_addr
+ *   The pointer point to where the address will be stored.
+ * @param expected
+ *   The pointer point to value to be expected when descriptor is set.
+ * @param mask
+ *   The pointer point to comparison bitmask for the expected value.
+ * @param data_sz
+ *   Data size for the expected value (can be 1, 2, 4, or 8 bytes)
+ * @return
+ *   Negative errno value on error, 0 on success.
+ *
+ * @retval 0
+ *   Success
+ * @retval -EINVAL
+ *   Invalid parameters
+ */
+typedef int (*eth_get_wake_addr_t)(void *rxq, volatile void **tail_desc_addr,
+		uint64_t *expected, uint64_t *mask, uint8_t *data_sz);
+
 /**
  * @internal A structure containing the functions exported by an Ethernet driver.
  */
@@ -801,6 +827,8 @@  struct eth_dev_ops {
 	/**< Get Forward Error Correction(FEC) mode. */
 	eth_fec_set_t fec_set;
 	/**< Set Forward Error Correction(FEC) mode. */
+	eth_get_wake_addr_t get_wake_addr;
+	/**< Get next RX queue ring entry address. */
 };
 
 /**
diff --git a/lib/librte_ethdev/rte_ethdev_version.map b/lib/librte_ethdev/rte_ethdev_version.map
index f8a0945812..6c2ea5996d 100644
--- a/lib/librte_ethdev/rte_ethdev_version.map
+++ b/lib/librte_ethdev/rte_ethdev_version.map
@@ -232,6 +232,7 @@  EXPERIMENTAL {
 	rte_eth_fec_get_capability;
 	rte_eth_fec_get;
 	rte_eth_fec_set;
+	rte_eth_get_wake_addr;
 };
 
 INTERNAL {