[dpdk-dev,PATCHv3,1/5] ethdev: add new API to retrieve RX/TX queue information

Message ID 1437394750-5965-2-git-send-email-konstantin.ananyev@intel.com (mailing list archive)
State Superseded, archived
Headers

Commit Message

Ananyev, Konstantin July 20, 2015, 12:19 p.m. UTC
  Add the ability for the upper layer to query RX/TX queue information.

Add new structures:
struct rte_eth_rxq_info
struct rte_eth_txq_info

new functions:
rte_eth_rx_queue_info_get
rte_eth_tx_queue_info_get

into rte_etdev API.

Left extra free space in the queue info structures,
so extra fields could be added later without ABI breakage.

v2 changes:
- Add formal check for the qinfo input parameter.
- As suggested rename 'rx_qinfo/tx_qinfo' to 'rxq_info/txq_info'

v3 changes:
- Updated rte_ether_version.map 
- Merged with latest changes

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
---
 lib/librte_ether/rte_ethdev.c          | 54 +++++++++++++++++++++
 lib/librte_ether/rte_ethdev.h          | 87 +++++++++++++++++++++++++++++++---
 lib/librte_ether/rte_ether_version.map |  2 +
 3 files changed, 137 insertions(+), 6 deletions(-)
  

Comments

Zhang, Helin July 22, 2015, 4:50 p.m. UTC | #1
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Konstantin Ananyev
> Sent: Monday, July 20, 2015 5:19 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCHv3 1/5] ethdev: add new API to retrieve RX/TX queue
> information
> 
> Add the ability for the upper layer to query RX/TX queue information.
> 
> Add new structures:
> struct rte_eth_rxq_info
> struct rte_eth_txq_info
> 
> new functions:
> rte_eth_rx_queue_info_get
> rte_eth_tx_queue_info_get
> 
> into rte_etdev API.
> 
> Left extra free space in the queue info structures, so extra fields could be added
> later without ABI breakage.
> 
> v2 changes:
> - Add formal check for the qinfo input parameter.
> - As suggested rename 'rx_qinfo/tx_qinfo' to 'rxq_info/txq_info'
> 
> v3 changes:
> - Updated rte_ether_version.map
> - Merged with latest changes
> 
> Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
> ---
>  lib/librte_ether/rte_ethdev.c          | 54 +++++++++++++++++++++
>  lib/librte_ether/rte_ethdev.h          | 87
> +++++++++++++++++++++++++++++++---
>  lib/librte_ether/rte_ether_version.map |  2 +
>  3 files changed, 137 insertions(+), 6 deletions(-)
> 
> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c index
> 94104ce..a94c119 100644
> --- a/lib/librte_ether/rte_ethdev.c
> +++ b/lib/librte_ether/rte_ethdev.c
> @@ -3341,6 +3341,60 @@ rte_eth_remove_tx_callback(uint8_t port_id, uint16_t
> queue_id,  }
> 
>  int
> +rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id,
> +	struct rte_eth_rxq_info *qinfo)
> +{
> +	struct rte_eth_dev *dev;
> +
> +	if (qinfo == NULL)
> +		return -EINVAL;
> +
> +	if (!rte_eth_dev_is_valid_port(port_id)) {
> +		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
> +		return -EINVAL;
> +	}
> +
> +	dev = &rte_eth_devices[port_id];
> +	if (queue_id >= dev->data->nb_rx_queues) {
> +		PMD_DEBUG_TRACE("Invalid RX queue_id=%d\n", queue_id);
> +		return -EINVAL;
> +	}
> +
> +	FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rxq_info_get, -ENOTSUP);
> +
> +	memset(qinfo, 0, sizeof(*qinfo));
> +	dev->dev_ops->rxq_info_get(dev, queue_id, qinfo);
> +	return 0;
> +}
> +
> +int
> +rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id,
> +	struct rte_eth_txq_info *qinfo)
> +{
> +	struct rte_eth_dev *dev;
> +
> +	if (qinfo == NULL)
> +		return -EINVAL;
> +
> +	if (!rte_eth_dev_is_valid_port(port_id)) {
> +		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
> +		return -EINVAL;
> +	}
> +
> +	dev = &rte_eth_devices[port_id];
> +	if (queue_id >= dev->data->nb_tx_queues) {
> +		PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", queue_id);
> +		return -EINVAL;
> +	}
> +
> +	FUNC_PTR_OR_ERR_RET(*dev->dev_ops->txq_info_get, -ENOTSUP);
> +
> +	memset(qinfo, 0, sizeof(*qinfo));
> +	dev->dev_ops->txq_info_get(dev, queue_id, qinfo);
> +	return 0;
> +}
> +
> +int
>  rte_eth_dev_set_mc_addr_list(uint8_t port_id,
>  			     struct ether_addr *mc_addr_set,
>  			     uint32_t nb_mc_addr)
> diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index
> c901a2c..0c6705e 100644
> --- a/lib/librte_ether/rte_ethdev.h
> +++ b/lib/librte_ether/rte_ethdev.h
> @@ -960,6 +960,30 @@ struct rte_eth_xstats {
>  	uint64_t value;
>  };
> 
> +/**
> + * Ethernet device RX queue information strcuture.
> + * Used to retieve information about configured queue.
> + */
> +struct rte_eth_rxq_info {
> +	struct rte_mempool *mp;     /**< mempool used by that queue. */
> +	struct rte_eth_rxconf conf; /**< queue config parameters. */
> +	uint8_t scattered_rx;       /**< scattered packets RX supported. */
> +	uint16_t nb_desc;           /**< configured number of RXDs. */
> +	uint16_t max_desc;          /**< max allowed number of RXDs. */
> +	uint16_t min_desc;          /**< min allowed number of RXDs. */
> +} __rte_cache_aligned;
> +
> +/**
> + * Ethernet device TX queue information strcuture.
> + * Used to retieve information about configured queue.
> + */
> +struct rte_eth_txq_info {
> +	struct rte_eth_txconf conf; /**< queue config parameters. */
> +	uint16_t nb_desc;           /**< configured number of TXDs. */
> +	uint16_t max_desc;          /**< max allowed number of TXDs. */
> +	uint16_t min_desc;          /**< min allowed number of TXDs. */
> +} __rte_cache_aligned;
> +
>  struct rte_eth_dev;
> 
>  struct rte_eth_dev_callback;
> @@ -1063,6 +1087,12 @@ typedef uint32_t (*eth_rx_queue_count_t)(struct
> rte_eth_dev *dev,  typedef int (*eth_rx_descriptor_done_t)(void *rxq,
> uint16_t offset);  /**< @internal Check DD bit of specific RX descriptor */
> 
> +typedef void (*eth_rxq_info_get_t)(struct rte_eth_dev *dev,
> +	uint16_t rx_queue_id, struct rte_eth_rxq_info *qinfo);
> +
> +typedef void (*eth_txq_info_get_t)(struct rte_eth_dev *dev,
> +	uint16_t tx_queue_id, struct rte_eth_txq_info *qinfo);
> +
>  typedef int (*mtu_set_t)(struct rte_eth_dev *dev, uint16_t mtu);  /**<
> @internal Set MTU. */
> 
> @@ -1451,9 +1481,13 @@ struct eth_dev_ops {
>  	rss_hash_update_t rss_hash_update;
>  	/** Get current RSS hash configuration. */
>  	rss_hash_conf_get_t rss_hash_conf_get;
> -	eth_filter_ctrl_t              filter_ctrl;          /**< common filter
> control*/
> +	eth_filter_ctrl_t              filter_ctrl;
> +	/**< common filter control. */
>  	eth_set_mc_addr_list_t set_mc_addr_list; /**< set list of mcast addrs */
> -
> +	eth_rxq_info_get_t rxq_info_get;
> +	/**< retrieve RX queue information. */
> +	eth_txq_info_get_t txq_info_get;
> +	/**< retrieve TX queue information. */
>  	/** Turn IEEE1588/802.1AS timestamping on. */
>  	eth_timesync_enable_t timesync_enable;
>  	/** Turn IEEE1588/802.1AS timestamping off. */ @@ -3721,6 +3755,46 @@
> int rte_eth_remove_tx_callback(uint8_t port_id, uint16_t queue_id,
>  		struct rte_eth_rxtx_callback *user_cb);
Is it targeting R2.1? If no, the new ops should be added at the end of this structure?

> 
>  /**
> + * Retrieve information about given port's RX 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 qinfo
> + *   A pointer to a structure of type *rte_eth_rxq_info_info* to be filled with
> + *   the information of the Ethernet device.
> + *
> + * @return
> + *   - 0: Success
> + *   - -ENOTSUP: routine is not supported by the device PMD.
> + *   - -EINVAL:  The port_id or the queue_id is out of range.
> + */
> +int rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id,
> +	struct rte_eth_rxq_info *qinfo);
> +
> +/**
> + * Retrieve information about given port's TX queue.
> + *
> + * @param port_id
> + *   The port identifier of the Ethernet device.
> + * @param queue_id
> + *   The TX queue on the Ethernet device for which information
> + *   will be retrieved.
> + * @param qinfo
> + *   A pointer to a structure of type *rte_eth_txq_info_info* to be filled with
> + *   the information of the Ethernet device.
> + *
> + * @return
> + *   - 0: Success
> + *   - -ENOTSUP: routine is not supported by the device PMD.
> + *   - -EINVAL:  The port_id or the queue_id is out of range.
> + */
> +int rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id,
> +	struct rte_eth_txq_info *qinfo);
> +
> +/*
>   * Retrieve number of available registers for access
>   *
>   * @param port_id
> @@ -3793,10 +3867,6 @@ int rte_eth_dev_get_eeprom(uint8_t port_id, struct
> rte_dev_eeprom_info *info);
>   */
>  int rte_eth_dev_set_eeprom(uint8_t port_id, struct rte_dev_eeprom_info
> *info);
> 
> -#ifdef __cplusplus
> -}
> -#endif


> -
>  /**
>   * Set the list of multicast addresses to filter on an Ethernet device.
>   *
> @@ -3882,4 +3952,9 @@ extern int
> rte_eth_timesync_read_rx_timestamp(uint8_t port_id,
>   */
>  extern int rte_eth_timesync_read_tx_timestamp(uint8_t port_id,
>  					      struct timespec *timestamp);
> +
> +#ifdef __cplusplus
> +}
> +#endif
This is fix for the issue introduced by new ieee1588. It must be added in R2.1 no matter
these patches can be applied or not.

> +
>  #endif /* _RTE_ETHDEV_H_ */
> diff --git a/lib/librte_ether/rte_ether_version.map
> b/lib/librte_ether/rte_ether_version.map
> index 23cfee9..8de0928 100644
> --- a/lib/librte_ether/rte_ether_version.map
> +++ b/lib/librte_ether/rte_ether_version.map
> @@ -92,6 +92,7 @@ DPDK_2.0 {
>  	rte_eth_rx_burst;
>  	rte_eth_rx_descriptor_done;
>  	rte_eth_rx_queue_count;
> +	rte_eth_rx_queue_info_get;
>  	rte_eth_rx_queue_setup;
>  	rte_eth_set_queue_rate_limit;
>  	rte_eth_set_vf_rate_limit;
> @@ -99,6 +100,7 @@ DPDK_2.0 {
>  	rte_eth_stats_get;
>  	rte_eth_stats_reset;
>  	rte_eth_tx_burst;
> +	rte_eth_tx_queue_info_get;
>  	rte_eth_tx_queue_setup;
>  	rte_eth_xstats_get;
>  	rte_eth_xstats_reset;
I am not quite sure about the version map. But I have a question: does it need to create new {} for DPDK_2.1?
And should your changes be in DPDK_2.1?

Regards,
Helin

> --
> 1.8.3.1
  
Ananyev, Konstantin July 22, 2015, 5 p.m. UTC | #2
> -----Original Message-----
> From: Zhang, Helin
> Sent: Wednesday, July 22, 2015 5:51 PM
> To: Ananyev, Konstantin
> Cc: dev@dpdk.org
> Subject: RE: [dpdk-dev] [PATCHv3 1/5] ethdev: add new API to retrieve RX/TX queue information
> 
> 
> 
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Konstantin Ananyev
> > Sent: Monday, July 20, 2015 5:19 AM
> > To: dev@dpdk.org
> > Subject: [dpdk-dev] [PATCHv3 1/5] ethdev: add new API to retrieve RX/TX queue
> > information
> >
> > Add the ability for the upper layer to query RX/TX queue information.
> >
> > Add new structures:
> > struct rte_eth_rxq_info
> > struct rte_eth_txq_info
> >
> > new functions:
> > rte_eth_rx_queue_info_get
> > rte_eth_tx_queue_info_get
> >
> > into rte_etdev API.
> >
> > Left extra free space in the queue info structures, so extra fields could be added
> > later without ABI breakage.
> >
> > v2 changes:
> > - Add formal check for the qinfo input parameter.
> > - As suggested rename 'rx_qinfo/tx_qinfo' to 'rxq_info/txq_info'
> >
> > v3 changes:
> > - Updated rte_ether_version.map
> > - Merged with latest changes
> >
> > Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
> > ---
> >  lib/librte_ether/rte_ethdev.c          | 54 +++++++++++++++++++++
> >  lib/librte_ether/rte_ethdev.h          | 87
> > +++++++++++++++++++++++++++++++---
> >  lib/librte_ether/rte_ether_version.map |  2 +
> >  3 files changed, 137 insertions(+), 6 deletions(-)
> >
> > diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c index
> > 94104ce..a94c119 100644
> > --- a/lib/librte_ether/rte_ethdev.c
> > +++ b/lib/librte_ether/rte_ethdev.c
> > @@ -3341,6 +3341,60 @@ rte_eth_remove_tx_callback(uint8_t port_id, uint16_t
> > queue_id,  }
> >
> >  int
> > +rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id,
> > +	struct rte_eth_rxq_info *qinfo)
> > +{
> > +	struct rte_eth_dev *dev;
> > +
> > +	if (qinfo == NULL)
> > +		return -EINVAL;
> > +
> > +	if (!rte_eth_dev_is_valid_port(port_id)) {
> > +		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
> > +		return -EINVAL;
> > +	}
> > +
> > +	dev = &rte_eth_devices[port_id];
> > +	if (queue_id >= dev->data->nb_rx_queues) {
> > +		PMD_DEBUG_TRACE("Invalid RX queue_id=%d\n", queue_id);
> > +		return -EINVAL;
> > +	}
> > +
> > +	FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rxq_info_get, -ENOTSUP);
> > +
> > +	memset(qinfo, 0, sizeof(*qinfo));
> > +	dev->dev_ops->rxq_info_get(dev, queue_id, qinfo);
> > +	return 0;
> > +}
> > +
> > +int
> > +rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id,
> > +	struct rte_eth_txq_info *qinfo)
> > +{
> > +	struct rte_eth_dev *dev;
> > +
> > +	if (qinfo == NULL)
> > +		return -EINVAL;
> > +
> > +	if (!rte_eth_dev_is_valid_port(port_id)) {
> > +		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
> > +		return -EINVAL;
> > +	}
> > +
> > +	dev = &rte_eth_devices[port_id];
> > +	if (queue_id >= dev->data->nb_tx_queues) {
> > +		PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", queue_id);
> > +		return -EINVAL;
> > +	}
> > +
> > +	FUNC_PTR_OR_ERR_RET(*dev->dev_ops->txq_info_get, -ENOTSUP);
> > +
> > +	memset(qinfo, 0, sizeof(*qinfo));
> > +	dev->dev_ops->txq_info_get(dev, queue_id, qinfo);
> > +	return 0;
> > +}
> > +
> > +int
> >  rte_eth_dev_set_mc_addr_list(uint8_t port_id,
> >  			     struct ether_addr *mc_addr_set,
> >  			     uint32_t nb_mc_addr)
> > diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index
> > c901a2c..0c6705e 100644
> > --- a/lib/librte_ether/rte_ethdev.h
> > +++ b/lib/librte_ether/rte_ethdev.h
> > @@ -960,6 +960,30 @@ struct rte_eth_xstats {
> >  	uint64_t value;
> >  };
> >
> > +/**
> > + * Ethernet device RX queue information strcuture.
> > + * Used to retieve information about configured queue.
> > + */
> > +struct rte_eth_rxq_info {
> > +	struct rte_mempool *mp;     /**< mempool used by that queue. */
> > +	struct rte_eth_rxconf conf; /**< queue config parameters. */
> > +	uint8_t scattered_rx;       /**< scattered packets RX supported. */
> > +	uint16_t nb_desc;           /**< configured number of RXDs. */
> > +	uint16_t max_desc;          /**< max allowed number of RXDs. */
> > +	uint16_t min_desc;          /**< min allowed number of RXDs. */
> > +} __rte_cache_aligned;
> > +
> > +/**
> > + * Ethernet device TX queue information strcuture.
> > + * Used to retieve information about configured queue.
> > + */
> > +struct rte_eth_txq_info {
> > +	struct rte_eth_txconf conf; /**< queue config parameters. */
> > +	uint16_t nb_desc;           /**< configured number of TXDs. */
> > +	uint16_t max_desc;          /**< max allowed number of TXDs. */
> > +	uint16_t min_desc;          /**< min allowed number of TXDs. */
> > +} __rte_cache_aligned;
> > +
> >  struct rte_eth_dev;
> >
> >  struct rte_eth_dev_callback;
> > @@ -1063,6 +1087,12 @@ typedef uint32_t (*eth_rx_queue_count_t)(struct
> > rte_eth_dev *dev,  typedef int (*eth_rx_descriptor_done_t)(void *rxq,
> > uint16_t offset);  /**< @internal Check DD bit of specific RX descriptor */
> >
> > +typedef void (*eth_rxq_info_get_t)(struct rte_eth_dev *dev,
> > +	uint16_t rx_queue_id, struct rte_eth_rxq_info *qinfo);
> > +
> > +typedef void (*eth_txq_info_get_t)(struct rte_eth_dev *dev,
> > +	uint16_t tx_queue_id, struct rte_eth_txq_info *qinfo);
> > +
> >  typedef int (*mtu_set_t)(struct rte_eth_dev *dev, uint16_t mtu);  /**<
> > @internal Set MTU. */
> >
> > @@ -1451,9 +1481,13 @@ struct eth_dev_ops {
> >  	rss_hash_update_t rss_hash_update;
> >  	/** Get current RSS hash configuration. */
> >  	rss_hash_conf_get_t rss_hash_conf_get;
> > -	eth_filter_ctrl_t              filter_ctrl;          /**< common filter
> > control*/
> > +	eth_filter_ctrl_t              filter_ctrl;
> > +	/**< common filter control. */
> >  	eth_set_mc_addr_list_t set_mc_addr_list; /**< set list of mcast addrs */
> > -
> > +	eth_rxq_info_get_t rxq_info_get;
> > +	/**< retrieve RX queue information. */
> > +	eth_txq_info_get_t txq_info_get;
> > +	/**< retrieve TX queue information. */
> >  	/** Turn IEEE1588/802.1AS timestamping on. */
> >  	eth_timesync_enable_t timesync_enable;
> >  	/** Turn IEEE1588/802.1AS timestamping off. */ @@ -3721,6 +3755,46 @@
> > int rte_eth_remove_tx_callback(uint8_t port_id, uint16_t queue_id,
> >  		struct rte_eth_rxtx_callback *user_cb);
> Is it targeting R2.1? If no, the new ops should be added at the end of this structure?
> 
> >
> >  /**
> > + * Retrieve information about given port's RX 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 qinfo
> > + *   A pointer to a structure of type *rte_eth_rxq_info_info* to be filled with
> > + *   the information of the Ethernet device.
> > + *
> > + * @return
> > + *   - 0: Success
> > + *   - -ENOTSUP: routine is not supported by the device PMD.
> > + *   - -EINVAL:  The port_id or the queue_id is out of range.
> > + */
> > +int rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id,
> > +	struct rte_eth_rxq_info *qinfo);
> > +
> > +/**
> > + * Retrieve information about given port's TX queue.
> > + *
> > + * @param port_id
> > + *   The port identifier of the Ethernet device.
> > + * @param queue_id
> > + *   The TX queue on the Ethernet device for which information
> > + *   will be retrieved.
> > + * @param qinfo
> > + *   A pointer to a structure of type *rte_eth_txq_info_info* to be filled with
> > + *   the information of the Ethernet device.
> > + *
> > + * @return
> > + *   - 0: Success
> > + *   - -ENOTSUP: routine is not supported by the device PMD.
> > + *   - -EINVAL:  The port_id or the queue_id is out of range.
> > + */
> > +int rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id,
> > +	struct rte_eth_txq_info *qinfo);
> > +
> > +/*
> >   * Retrieve number of available registers for access
> >   *
> >   * @param port_id
> > @@ -3793,10 +3867,6 @@ int rte_eth_dev_get_eeprom(uint8_t port_id, struct
> > rte_dev_eeprom_info *info);
> >   */
> >  int rte_eth_dev_set_eeprom(uint8_t port_id, struct rte_dev_eeprom_info
> > *info);
> >
> > -#ifdef __cplusplus
> > -}
> > -#endif
> 
> 
> > -
> >  /**
> >   * Set the list of multicast addresses to filter on an Ethernet device.
> >   *
> > @@ -3882,4 +3952,9 @@ extern int
> > rte_eth_timesync_read_rx_timestamp(uint8_t port_id,
> >   */
> >  extern int rte_eth_timesync_read_tx_timestamp(uint8_t port_id,
> >  					      struct timespec *timestamp);
> > +
> > +#ifdef __cplusplus
> > +}
> > +#endif
> This is fix for the issue introduced by new ieee1588. It must be added in R2.1 no matter
> these patches can be applied or not.
> 
> > +
> >  #endif /* _RTE_ETHDEV_H_ */
> > diff --git a/lib/librte_ether/rte_ether_version.map
> > b/lib/librte_ether/rte_ether_version.map
> > index 23cfee9..8de0928 100644
> > --- a/lib/librte_ether/rte_ether_version.map
> > +++ b/lib/librte_ether/rte_ether_version.map
> > @@ -92,6 +92,7 @@ DPDK_2.0 {
> >  	rte_eth_rx_burst;
> >  	rte_eth_rx_descriptor_done;
> >  	rte_eth_rx_queue_count;
> > +	rte_eth_rx_queue_info_get;
> >  	rte_eth_rx_queue_setup;
> >  	rte_eth_set_queue_rate_limit;
> >  	rte_eth_set_vf_rate_limit;
> > @@ -99,6 +100,7 @@ DPDK_2.0 {
> >  	rte_eth_stats_get;
> >  	rte_eth_stats_reset;
> >  	rte_eth_tx_burst;
> > +	rte_eth_tx_queue_info_get;
> >  	rte_eth_tx_queue_setup;
> >  	rte_eth_xstats_get;
> >  	rte_eth_xstats_reset;
> I am not quite sure about the version map. But I have a question: does it need to create new {} for DPDK_2.1?
> And should your changes be in DPDK_2.1?

Ah yes, I think you right - it should be in 2.1, not 2.0.
Will re-spin.
Konstantin

> 
> Regards,
> Helin
> 
> > --
> > 1.8.3.1
  
Ananyev, Konstantin July 22, 2015, 6:28 p.m. UTC | #3
Add the ability for the upper layer to query RX/TX queue information.
Right now supported for:
ixgbe, i40e, e1000 PMDs.

Konstantin Ananyev (5):
  ethdev: add new API to retrieve RX/TX queue information
  i40e: add support for eth_(rxq|txq)_info_get
  ixgbe: add support for eth_(rxq|txq)_info_get
  e1000: add support for eth_(rxq|txq)_info_get
  testpmd: add new command to display RX/TX queue information

 app/test-pmd/cmdline.c                 | 48 +++++++++++++++++++
 app/test-pmd/config.c                  | 67 ++++++++++++++++++++++++++
 app/test-pmd/testpmd.h                 |  2 +
 drivers/net/e1000/e1000_ethdev.h       | 12 +++++
 drivers/net/e1000/em_ethdev.c          |  2 +
 drivers/net/e1000/em_rxtx.c            | 38 +++++++++++++++
 drivers/net/e1000/igb_ethdev.c         |  4 ++
 drivers/net/e1000/igb_rxtx.c           | 36 ++++++++++++++
 drivers/net/i40e/i40e_ethdev.c         |  2 +
 drivers/net/i40e/i40e_ethdev.h         |  5 ++
 drivers/net/i40e/i40e_rxtx.c           | 42 ++++++++++++++++
 drivers/net/ixgbe/ixgbe_ethdev.c       |  4 ++
 drivers/net/ixgbe/ixgbe_ethdev.h       |  6 +++
 drivers/net/ixgbe/ixgbe_rxtx.c         | 42 ++++++++++++++++
 lib/librte_ether/rte_ethdev.c          | 54 +++++++++++++++++++++
 lib/librte_ether/rte_ethdev.h          | 87 +++++++++++++++++++++++++++++++---
 lib/librte_ether/rte_ether_version.map |  2 +
 17 files changed, 447 insertions(+), 6 deletions(-)
  
Thomas Monjalon July 22, 2015, 8:45 p.m. UTC | #4
2015-07-22 17:00, Ananyev, Konstantin:
> From: Zhang, Helin
> > > -#ifdef __cplusplus
> > > -}
> > > -#endif
> > > -
> > >  /**
> > >   * Set the list of multicast addresses to filter on an Ethernet device.
> > >   *
> > > @@ -3882,4 +3952,9 @@ extern int
> > > rte_eth_timesync_read_rx_timestamp(uint8_t port_id,
> > >   */
> > >  extern int rte_eth_timesync_read_tx_timestamp(uint8_t port_id,
> > >  					      struct timespec *timestamp);
> > > +
> > > +#ifdef __cplusplus
> > > +}
> > > +#endif
> > This is fix for the issue introduced by new ieee1588. It must be added in R2.1 no matter
> > these patches can be applied or not.

Yes you're totally right Helin.
It's a fix and should be in a separate patch.
This feature is not planned in 2.1.
  
Thomas Monjalon July 23, 2015, 12:48 p.m. UTC | #5
2015-07-22 19:28, Konstantin Ananyev:
> Add the ability for the upper layer to query RX/TX queue information.
> Right now supported for:
> ixgbe, i40e, e1000 PMDs.

Thank you for working on it.
The feature is now in the roadmap for version 2.2.
Please postpone any new version to the 2.2 release cycle.
  

Patch

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 94104ce..a94c119 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -3341,6 +3341,60 @@  rte_eth_remove_tx_callback(uint8_t port_id, uint16_t queue_id,
 }
 
 int
+rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id,
+	struct rte_eth_rxq_info *qinfo)
+{
+	struct rte_eth_dev *dev;
+
+	if (qinfo == NULL)
+		return -EINVAL;
+
+	if (!rte_eth_dev_is_valid_port(port_id)) {
+		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
+		return -EINVAL;
+	}
+
+	dev = &rte_eth_devices[port_id];
+	if (queue_id >= dev->data->nb_rx_queues) {
+		PMD_DEBUG_TRACE("Invalid RX queue_id=%d\n", queue_id);
+		return -EINVAL;
+	}
+
+	FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rxq_info_get, -ENOTSUP);
+
+	memset(qinfo, 0, sizeof(*qinfo));
+	dev->dev_ops->rxq_info_get(dev, queue_id, qinfo);
+	return 0;
+}
+
+int
+rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id,
+	struct rte_eth_txq_info *qinfo)
+{
+	struct rte_eth_dev *dev;
+
+	if (qinfo == NULL)
+		return -EINVAL;
+
+	if (!rte_eth_dev_is_valid_port(port_id)) {
+		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
+		return -EINVAL;
+	}
+
+	dev = &rte_eth_devices[port_id];
+	if (queue_id >= dev->data->nb_tx_queues) {
+		PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", queue_id);
+		return -EINVAL;
+	}
+
+	FUNC_PTR_OR_ERR_RET(*dev->dev_ops->txq_info_get, -ENOTSUP);
+
+	memset(qinfo, 0, sizeof(*qinfo));
+	dev->dev_ops->txq_info_get(dev, queue_id, qinfo);
+	return 0;
+}
+
+int
 rte_eth_dev_set_mc_addr_list(uint8_t port_id,
 			     struct ether_addr *mc_addr_set,
 			     uint32_t nb_mc_addr)
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index c901a2c..0c6705e 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -960,6 +960,30 @@  struct rte_eth_xstats {
 	uint64_t value;
 };
 
+/**
+ * Ethernet device RX queue information strcuture.
+ * Used to retieve information about configured queue.
+ */
+struct rte_eth_rxq_info {
+	struct rte_mempool *mp;     /**< mempool used by that queue. */
+	struct rte_eth_rxconf conf; /**< queue config parameters. */
+	uint8_t scattered_rx;       /**< scattered packets RX supported. */
+	uint16_t nb_desc;           /**< configured number of RXDs. */
+	uint16_t max_desc;          /**< max allowed number of RXDs. */
+	uint16_t min_desc;          /**< min allowed number of RXDs. */
+} __rte_cache_aligned;
+
+/**
+ * Ethernet device TX queue information strcuture.
+ * Used to retieve information about configured queue.
+ */
+struct rte_eth_txq_info {
+	struct rte_eth_txconf conf; /**< queue config parameters. */
+	uint16_t nb_desc;           /**< configured number of TXDs. */
+	uint16_t max_desc;          /**< max allowed number of TXDs. */
+	uint16_t min_desc;          /**< min allowed number of TXDs. */
+} __rte_cache_aligned;
+
 struct rte_eth_dev;
 
 struct rte_eth_dev_callback;
@@ -1063,6 +1087,12 @@  typedef uint32_t (*eth_rx_queue_count_t)(struct rte_eth_dev *dev,
 typedef int (*eth_rx_descriptor_done_t)(void *rxq, uint16_t offset);
 /**< @internal Check DD bit of specific RX descriptor */
 
+typedef void (*eth_rxq_info_get_t)(struct rte_eth_dev *dev,
+	uint16_t rx_queue_id, struct rte_eth_rxq_info *qinfo);
+
+typedef void (*eth_txq_info_get_t)(struct rte_eth_dev *dev,
+	uint16_t tx_queue_id, struct rte_eth_txq_info *qinfo);
+
 typedef int (*mtu_set_t)(struct rte_eth_dev *dev, uint16_t mtu);
 /**< @internal Set MTU. */
 
@@ -1451,9 +1481,13 @@  struct eth_dev_ops {
 	rss_hash_update_t rss_hash_update;
 	/** Get current RSS hash configuration. */
 	rss_hash_conf_get_t rss_hash_conf_get;
-	eth_filter_ctrl_t              filter_ctrl;          /**< common filter control*/
+	eth_filter_ctrl_t              filter_ctrl;
+	/**< common filter control. */
 	eth_set_mc_addr_list_t set_mc_addr_list; /**< set list of mcast addrs */
-
+	eth_rxq_info_get_t rxq_info_get;
+	/**< retrieve RX queue information. */
+	eth_txq_info_get_t txq_info_get;
+	/**< retrieve TX queue information. */
 	/** Turn IEEE1588/802.1AS timestamping on. */
 	eth_timesync_enable_t timesync_enable;
 	/** Turn IEEE1588/802.1AS timestamping off. */
@@ -3721,6 +3755,46 @@  int rte_eth_remove_tx_callback(uint8_t port_id, uint16_t queue_id,
 		struct rte_eth_rxtx_callback *user_cb);
 
 /**
+ * Retrieve information about given port's RX 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 qinfo
+ *   A pointer to a structure of type *rte_eth_rxq_info_info* to be filled with
+ *   the information of the Ethernet device.
+ *
+ * @return
+ *   - 0: Success
+ *   - -ENOTSUP: routine is not supported by the device PMD.
+ *   - -EINVAL:  The port_id or the queue_id is out of range.
+ */
+int rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id,
+	struct rte_eth_rxq_info *qinfo);
+
+/**
+ * Retrieve information about given port's TX queue.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param queue_id
+ *   The TX queue on the Ethernet device for which information
+ *   will be retrieved.
+ * @param qinfo
+ *   A pointer to a structure of type *rte_eth_txq_info_info* to be filled with
+ *   the information of the Ethernet device.
+ *
+ * @return
+ *   - 0: Success
+ *   - -ENOTSUP: routine is not supported by the device PMD.
+ *   - -EINVAL:  The port_id or the queue_id is out of range.
+ */
+int rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id,
+	struct rte_eth_txq_info *qinfo);
+
+/*
  * Retrieve number of available registers for access
  *
  * @param port_id
@@ -3793,10 +3867,6 @@  int rte_eth_dev_get_eeprom(uint8_t port_id, struct rte_dev_eeprom_info *info);
  */
 int rte_eth_dev_set_eeprom(uint8_t port_id, struct rte_dev_eeprom_info *info);
 
-#ifdef __cplusplus
-}
-#endif
-
 /**
  * Set the list of multicast addresses to filter on an Ethernet device.
  *
@@ -3882,4 +3952,9 @@  extern int rte_eth_timesync_read_rx_timestamp(uint8_t port_id,
  */
 extern int rte_eth_timesync_read_tx_timestamp(uint8_t port_id,
 					      struct timespec *timestamp);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _RTE_ETHDEV_H_ */
diff --git a/lib/librte_ether/rte_ether_version.map b/lib/librte_ether/rte_ether_version.map
index 23cfee9..8de0928 100644
--- a/lib/librte_ether/rte_ether_version.map
+++ b/lib/librte_ether/rte_ether_version.map
@@ -92,6 +92,7 @@  DPDK_2.0 {
 	rte_eth_rx_burst;
 	rte_eth_rx_descriptor_done;
 	rte_eth_rx_queue_count;
+	rte_eth_rx_queue_info_get;
 	rte_eth_rx_queue_setup;
 	rte_eth_set_queue_rate_limit;
 	rte_eth_set_vf_rate_limit;
@@ -99,6 +100,7 @@  DPDK_2.0 {
 	rte_eth_stats_get;
 	rte_eth_stats_reset;
 	rte_eth_tx_burst;
+	rte_eth_tx_queue_info_get;
 	rte_eth_tx_queue_setup;
 	rte_eth_xstats_get;
 	rte_eth_xstats_reset;