[dpdk-dev] [PATCH 00/13] Add support for secondary queue set in nicvf thunderx driver
Kamil Rytarowski
krytarowski at caviumnetworks.com
Mon Sep 19 14:23:06 CEST 2016
ping
W dniu 12.09.2016 o 12:59, Kamil Rytarowski pisze:
> ping
>
>
> W dniu 26.08.2016 o 18:53, Kamil Rytarowski pisze:
>> 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
>>
>
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