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

On 12/18/14 12:11, Vlad Zolotarov wrote:

From: Changchun Ouyang <redacted>

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(-)

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