Re: [dpdk-dev] [PATCHv2 0/5] ethdev: add new API to retrieve RX/TX queue information

["Walukiewicz, Miroslaw" <Miroslaw.Walukiewicz@intel.com>]

Konstantin, 

Is there a possibility to read information about available space in NIC queue for TX.

It is quite easy to compute (or even available directly)  and very useful especially for application sending multi-descriptor packets like TCP TSO. 

Now there is no access to such information and the transmit packet function must be called to 
be sure that there is available space.

Mirek

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Konstantin Ananyev
> Sent: Thursday, June 18, 2015 3:19 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCHv2 0/5] ethdev: add new API to retrieve RX/TX
> queue information
> 
> 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    | 77
> +++++++++++++++++++++++++++++++++++++++-
>  16 files changed, 440 insertions(+), 1 deletion(-)
> 
> --
> 1.8.5.3