[dpdk-dev] [PATCH V4] ethdev: add queue state when retrieve queue information

Ananyev, Konstantin konstantin.ananyev at intel.com
Fri Apr 16 11:19:44 CEST 2021


 
> Currently, upper-layer application could get queue state only
> through pointers such as dev->data->tx_queue_state[queue_id],
> this is not the recommended way to access it. So this patch
> add get queue state when call rte_eth_rx_queue_info_get and
> rte_eth_tx_queue_info_get API.
> 
> Note: After add queue_state field, the 'struct rte_eth_rxq_info' size
> remains 128B, and the 'struct rte_eth_txq_info' size remains 64B, so
> it could be ABI compatible.
> 
> Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
> Signed-off-by: Lijun Ou <oulijun at huawei.com>
> ---
>  devtools/libabigail.abignore           | 12 +++++++++++-
>  doc/guides/rel_notes/release_21_05.rst |  6 ++++++
>  lib/librte_ethdev/ethdev_driver.h      |  7 -------
>  lib/librte_ethdev/rte_ethdev.c         |  3 +++
>  lib/librte_ethdev/rte_ethdev.h         |  9 +++++++++
>  5 files changed, 29 insertions(+), 8 deletions(-)
> 
> diff --git a/devtools/libabigail.abignore b/devtools/libabigail.abignore
> index 6c0b389..54542a8 100644
> --- a/devtools/libabigail.abignore
> +++ b/devtools/libabigail.abignore
> @@ -19,4 +19,14 @@
>  ; Ignore fields inserted in cacheline boundary of rte_cryptodev
>  [suppress_type]
>          name = rte_cryptodev
> -        has_data_member_inserted_between = {offset_after(attached), end}
> \ No newline at end of file
> +        has_data_member_inserted_between = {offset_after(attached), end}
> +
> +; Ignore fields inserted in alignment hole of rte_eth_rxq_info
> +[suppress_type]
> +        name = rte_eth_rxq_info
> +        has_data_member_inserted_at = offset_after(scattered_rx)
> +
> +; Ignore fields inserted in cacheline boundary of rte_eth_txq_info
> +[suppress_type]
> +        name = rte_eth_txq_info
> +        has_data_member_inserted_between = {offset_after(nb_desc), end}
> diff --git a/doc/guides/rel_notes/release_21_05.rst b/doc/guides/rel_notes/release_21_05.rst
> index 3bd7757..c6e45e2 100644
> --- a/doc/guides/rel_notes/release_21_05.rst
> +++ b/doc/guides/rel_notes/release_21_05.rst
> @@ -251,6 +251,12 @@ ABI Changes
>    function was already marked as internal in the API documentation for it,
>    and was not for use by external applications.
> 
> +* Added new field ``queue_state`` to ``rte_eth_rxq_info`` structure
> +  to provide indicated rxq queue state.
> +
> +* Added new field ``queue_state`` to ``rte_eth_txq_info`` structure
> +  to provide indicated txq queue state.
> +
> 
>  Known Issues
>  ------------
> diff --git a/lib/librte_ethdev/ethdev_driver.h b/lib/librte_ethdev/ethdev_driver.h
> index 113129d..40e474a 100644
> --- a/lib/librte_ethdev/ethdev_driver.h
> +++ b/lib/librte_ethdev/ethdev_driver.h
> @@ -952,13 +952,6 @@ struct eth_dev_ops {
>  };
> 
>  /**
> - * RX/TX queue states
> - */
> -#define RTE_ETH_QUEUE_STATE_STOPPED 0
> -#define RTE_ETH_QUEUE_STATE_STARTED 1
> -#define RTE_ETH_QUEUE_STATE_HAIRPIN 2
> -
> -/**
>   * @internal
>   * Check if the selected Rx queue is hairpin queue.
>   *
> diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
> index 6b5cfd6..ab188ec 100644
> --- a/lib/librte_ethdev/rte_ethdev.c
> +++ b/lib/librte_ethdev/rte_ethdev.c
> @@ -5042,6 +5042,8 @@ rte_eth_rx_queue_info_get(uint16_t port_id, uint16_t queue_id,
> 
>  	memset(qinfo, 0, sizeof(*qinfo));
>  	dev->dev_ops->rxq_info_get(dev, queue_id, qinfo);
> +	qinfo->queue_state = dev->data->rx_queue_state[queue_id];
> +
>  	return 0;
>  }
> 
> @@ -5082,6 +5084,7 @@ rte_eth_tx_queue_info_get(uint16_t port_id, uint16_t queue_id,
> 
>  	memset(qinfo, 0, sizeof(*qinfo));
>  	dev->dev_ops->txq_info_get(dev, queue_id, qinfo);
> +	qinfo->queue_state = dev->data->tx_queue_state[queue_id];
> 
>  	return 0;
>  }
> diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
> index 3b773b6..a0d01d2 100644
> --- a/lib/librte_ethdev/rte_ethdev.h
> +++ b/lib/librte_ethdev/rte_ethdev.h
> @@ -1588,6 +1588,13 @@ struct rte_eth_dev_info {
>  };
> 
>  /**
> + * RX/TX queue states
> + */
> +#define RTE_ETH_QUEUE_STATE_STOPPED 0
> +#define RTE_ETH_QUEUE_STATE_STARTED 1
> +#define RTE_ETH_QUEUE_STATE_HAIRPIN 2
> +
> +/**
>   * Ethernet device RX queue information structure.
>   * Used to retrieve information about configured queue.
>   */
> @@ -1595,6 +1602,7 @@ 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. */
> +	uint8_t queue_state;        /**< one of RTE_ETH_QUEUE_STATE_*. */
>  	uint16_t nb_desc;           /**< configured number of RXDs. */
>  	uint16_t rx_buf_size;       /**< hardware receive buffer size. */
>  } __rte_cache_min_aligned;
> @@ -1606,6 +1614,7 @@ struct rte_eth_rxq_info {
>  struct rte_eth_txq_info {
>  	struct rte_eth_txconf conf; /**< queue config parameters. */
>  	uint16_t nb_desc;           /**< configured number of TXDs. */
> +	uint8_t queue_state;        /**< one of RTE_ETH_QUEUE_STATE_*. */
>  } __rte_cache_min_aligned;
> 
>  /* Generic Burst mode flag definition, values can be ORed. */
> --

Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>

> 2.7.4



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