Re: [dpdk-dev] [PATCH 0/6] Enable VF RSS for Niantic

[Vlad Zolotarov <vladz@cloudius-systems.com>]

On 12/18/14 12:11, Vlad Zolotarov wrote:
> From: Changchun Ouyang <changchun.ouyang@intel.com>
>
> This patch enables VF RSS for Niantic, which allow each VF having at most 4 queues.
> The actual queue number per VF depends on the number of VF:
> VF number from 1~32: 4 queues per VF;
> VF number from 33~max vf num: 2 queues per VF;
>
> On host, to enable VF RSS functionality, mq mode should be set as ETH_MQ_RX_VMDQ_RSS
> or ETH_MQ_RX_RSS mode, and SRIOV mode should be activated.
> It also needs config VF RSS information like hash function, RSS key, RSS key length.

This patch series is missing a few things:

 1. Taking into the consideration the number of Rx queues requested by a
    user in the rte_eth_dev_configure().
 2. dev->dev_ops->reta_query used by a rte_eth_dev_rss_reta_query() is
    still not initialized for a VF. Thus there is no way to query the
    RSS table contents.
 3. rte_eth_dev_info_get() returns reta_size == 0 when called for a VF
    function.

thanks,
vlad
>
> Changchun Ouyang (6):
>    ixgbe: Code cleanup
>    ixgbe: Negotiate VF API version
>    ixgbe: Get VF queue number
>    ether: Check VMDq RSS mode
>    ixgbe: Config VF RSS
>    testpmd: Set Rx VMDq RSS mode
>
>   app/test-pmd/testpmd.c              |  9 ++++
>   lib/librte_ether/rte_ethdev.c       | 21 ++++++--
>   lib/librte_pmd_ixgbe/ixgbe_ethdev.h |  1 +
>   lib/librte_pmd_ixgbe/ixgbe_pf.c     | 75 ++++++++++++++++++++++++++++-
>   lib/librte_pmd_ixgbe/ixgbe_rxtx.c   | 95 +++++++++++++++++++++++++++----------
>   5 files changed, 171 insertions(+), 30 deletions(-)
>
> --