[dpdk-dev] [RFC PATCH 0/2] ethdev: add port speed capability bitmap

[Marc Sune]

Any objections to this one? Otherwise I will rebase and propose a formal 
patch

marc

On 12/05/15 01:45, Marc Sune wrote:
> The current rte_eth_dev_info abstraction does not provide any mechanism to
> know the supported speed(s) of an ethdev.
>
> For some drivers (e.g. ixgbe), an educated guess can be done based on the
> driver's name (driver_name in rte_eth_dev_info), see:
>
> http://dpdk.org/ml/archives/dev/2013-August/000412.html
>
> However, i) doing string comparisons is annoying, and can silently
> break existing applications if PMDs change their names ii) it does not
> provide all the supported capabilities of the ethdev iii) for some drivers it
> is impossible determine correctly the (max) speed by the application
> (e.g. in i40, distinguish between XL710 and X710).
>
> This small patch adds speed_capa bitmap in rte_eth_dev_info, which is filled
> by the PMDs according to the physical device capabilities.
>
> WARNING: the patch is only tested with e1000s, and should be reviewed for
> accuracy.
>
>
> Marc Sune (2):
>    Added ETH_SPEED_CAP bitmap in rte_eth_dev_info
>    Filling speed capability bitmaps in the PMDs
>
>   lib/librte_ether/rte_ethdev.h       | 24 ++++++++++++++++++++++++
>   lib/librte_pmd_e1000/em_ethdev.c    |  6 ++++++
>   lib/librte_pmd_e1000/igb_ethdev.c   |  6 ++++++
>   lib/librte_pmd_fm10k/fm10k_ethdev.c |  3 +++
>   lib/librte_pmd_i40e/i40e_ethdev.c   |  9 +++++++++
>   lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 10 ++++++++++
>   lib/librte_pmd_mlx4/mlx4.c          |  6 ++++++
>   7 files changed, 64 insertions(+)
>