[dpdk-dev] [PATCH 00/13] Add support for secondary queue set in nicvf thunderx driver

[Kamil Rytarowski]

This series of patches adds support for secondary queue set in nicvf thunderx
driver

There are two types of VFs:
 - Primary VF
 - Secondary VF

Each port consist of a primary VF and n secondary VF(s). Each VF provides 8
Tx/Rx queues to a port. In case port is configured to use more than 8 queues,
then it requires one (or more) secondary VF. Each secondary VF adds additional
8 queues to the queue set.

During PMD driver initialization, the primary VF's are enumerated by checking the
specific flag (see READY message). They are at the beginning of  VF list (the remain
ones are secondary VF's).

The primary VFs are used as master queue sets. Secondary VFs provide
additional queue sets for primary ones. If a port is configured for more then
8 queues then it will request for additional queues from secondary VFs.

Secondary VFs cannot be shared between primary VFs.

Primary VFs are present on the tail of the 'Network devices using kernel
driver' list, secondary VFs are on the remaining tail of the list.

The VNIC driver in the multiqueue setup works differently than other drivers
like `ixgbe`. We need to bind separately each specific queue set device with
the ``tools/dpdk-devbind.py`` utility.

Depending on the hardware used, the kernel driver sets a threshold ``vf_id``.
VFs that try to attach with an id below or equal to this boundary are
considered primary VFs. VFs that try to attach with an id above this boundary
are considered secondary VFs.

This patchset also contains other cleanups and improvements like fixing
erroneous checksum calculation and preparing the thunderx driver for the multi
queue set feature support.


These changes base on the following pending patches:

[dpdk-dev,1/3] net/thunderx: remove generic passx references from the driver
http://dpdk.org/dev/patchwork/patch/14963/

[dpdk-dev,2/3] net/thunderx: introduce cqe_rx2 HW capability flag
http://dpdk.org/dev/patchwork/patch/14964/

[dpdk-dev,3/3] net/thunderx: add 81xx SoC support
http://dpdk.org/dev/patchwork/patch/14965/

Kamil Rytarowski (13):
  net/thunderx: cleanup the driver before adding new features
  net/thunderx: correct transmit checksum handling
  net/thunderx/base: add family of functions to store qsets
  net/thunderx/base: add secondary queue set support
  net/thunderx: add family of functions to store DPDK qsets
  net/thunderx: add secondary queue set in interrupt functions
  net/thunderx: fix multiprocess support in stats
  net/thunderx: add helper utils for secondary qset support
  net/thunderx: add secondary qset support in dev stop/close
  net/thunderx: add secondary qset support in device start
  net/thunderx: add secondary qset support in device configure
  net/thunderx: add final bits for secondary queue support
  net/thunderx: document secondary queue set support

 doc/guides/nics/thunderx.rst              | 114 ++++-
 drivers/net/thunderx/Makefile             |   2 +
 drivers/net/thunderx/base/nicvf_bsvf.c    |  72 +++
 drivers/net/thunderx/base/nicvf_bsvf.h    |  76 +++
 drivers/net/thunderx/base/nicvf_hw.c      |  10 +-
 drivers/net/thunderx/base/nicvf_hw.h      |   6 +-
 drivers/net/thunderx/base/nicvf_hw_defs.h |   1 +
 drivers/net/thunderx/base/nicvf_mbox.c    |  34 +-
 drivers/net/thunderx/base/nicvf_mbox.h    |  21 +-
 drivers/net/thunderx/nicvf_ethdev.c       | 753 +++++++++++++++++++++---------
 drivers/net/thunderx/nicvf_ethdev.h       |  39 ++
 drivers/net/thunderx/nicvf_rxtx.c         |  14 +-
 drivers/net/thunderx/nicvf_struct.h       |   6 +-
 drivers/net/thunderx/nicvf_svf.c          |  78 ++++
 drivers/net/thunderx/nicvf_svf.h          |  66 +++
 15 files changed, 1046 insertions(+), 246 deletions(-)
 create mode 100644 drivers/net/thunderx/base/nicvf_bsvf.c
 create mode 100644 drivers/net/thunderx/base/nicvf_bsvf.h
 create mode 100644 drivers/net/thunderx/nicvf_svf.c
 create mode 100644 drivers/net/thunderx/nicvf_svf.h

-- 
1.9.1