[dpdk-dev] [PATCH v2 00/16] Add VFIO support to DPDK

Anatoly Burakov anatoly.burakov at intel.com
Mon May 19 17:51:33 CEST 2014


This patchset adds support for using VFIO instead of IGB_UIO to
map the device BARs.

VFIO is a kernel 3.6+ driver allowing secure DMA from userspace
by means of using IOMMU instead of working directly with physical
memory like igb_uio does.

Short summary:
* Adding support for VFIO in EAL PCI code
* Adding new command-line parameter for VFIO interrupt type
* Adding support for VFIO in setup.sh
* Renaming igb_uio_bind to dpdk_nic_bind and adding support for
  VFIO there
* Removing PCI ID list from igb_uio, effectively making it another
  generic PCI driver similar to pci_stub, vfio-pci et al
* Adding autotest for VFIO interrupt types
* Making igb_uio and VFIO compilation optional

v2 changes: fixed a couple of resource leaks

Based off commit 356cb732d5381140f42ef8b55492339579854986

Anatoly Burakov (16):
  Separate igb_uio mapping into a separate file
  Distinguish between legitimate failures and non-fatal errors
  Rename RTE_PCI_DRV_NEED_IGB_UIO to RTE_PCI_DRV_NEED_MAPPING
  Make igb_uio compilation optional
  Moved interrupt type out of igb_uio
  Add support for VFIO in Linuxapp targets
  Add support for VFIO interrupts, add VFIO header
  Add support for mapping devices through VFIO.
  Enable VFIO device binding
  Added support for selecting VFIO interrupt type from EAL command-line
  Make --no-huge use mmap instead of malloc
  Adding unit tests for VFIO EAL command-line parameter
  Removed PCI ID table from igb_uio
  Renamed igb_uio_bind to dpdk_nic_bind
  Added support for VFIO drivers in dpdk_nic_bind.py
  Adding support for VFIO to setup.sh

 app/test/test_eal_flags.c                          |   24 +
 app/test/test_pci.c                                |    4 +-
 config/defconfig_i686-default-linuxapp-gcc         |    2 +
 config/defconfig_i686-default-linuxapp-icc         |    2 +
 config/defconfig_x86_64-default-linuxapp-gcc       |    2 +
 config/defconfig_x86_64-default-linuxapp-icc       |    2 +
 lib/librte_eal/bsdapp/eal/eal_pci.c                |    2 +-
 lib/librte_eal/common/Makefile                     |    1 +
 lib/librte_eal/common/eal_common_pci.c             |   16 +-
 lib/librte_eal/common/include/rte_pci.h            |    7 +-
 .../common/include/rte_pci_dev_feature_defs.h      |   46 ++
 .../common/include/rte_pci_dev_features.h          |   40 ++
 lib/librte_eal/linuxapp/Makefile                   |    2 +
 lib/librte_eal/linuxapp/eal/Makefile               |    6 +-
 lib/librte_eal/linuxapp/eal/eal.c                  |   33 +
 lib/librte_eal/linuxapp/eal/eal_interrupts.c       |  203 ++++++-
 lib/librte_eal/linuxapp/eal/eal_memory.c           |    8 +-
 lib/librte_eal/linuxapp/eal/eal_pci.c              |  486 ++------------
 lib/librte_eal/linuxapp/eal/eal_pci_uio.c          |  403 +++++++++++
 lib/librte_eal/linuxapp/eal/eal_pci_vfio.c         |  719 ++++++++++++++++++++
 lib/librte_eal/linuxapp/eal/eal_pci_vfio_socket.c  |  367 ++++++++++
 .../linuxapp/eal/include/eal_internal_cfg.h        |    3 +
 lib/librte_eal/linuxapp/eal/include/eal_pci_init.h |  120 ++++
 lib/librte_eal/linuxapp/eal/include/eal_vfio.h     |   55 ++
 .../linuxapp/eal/include/exec-env/rte_interrupts.h |    3 +
 lib/librte_eal/linuxapp/igb_uio/igb_uio.c          |   70 +--
 lib/librte_pmd_e1000/em_ethdev.c                   |    2 +-
 lib/librte_pmd_e1000/igb_ethdev.c                  |    4 +-
 lib/librte_pmd_ixgbe/ixgbe_ethdev.c                |    4 +-
 lib/librte_pmd_vmxnet3/vmxnet3_ethdev.c            |    2 +-
 tools/{igb_uio_bind.py => dpdk_nic_bind.py}        |  163 +++--
 tools/setup.sh                                     |  168 ++++-
 32 files changed, 2380 insertions(+), 589 deletions(-)
 create mode 100644 lib/librte_eal/common/include/rte_pci_dev_feature_defs.h
 create mode 100644 lib/librte_eal/common/include/rte_pci_dev_features.h
 create mode 100644 lib/librte_eal/linuxapp/eal/eal_pci_uio.c
 create mode 100644 lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
 create mode 100644 lib/librte_eal/linuxapp/eal/eal_pci_vfio_socket.c
 create mode 100644 lib/librte_eal/linuxapp/eal/include/eal_pci_init.h
 create mode 100644 lib/librte_eal/linuxapp/eal/include/eal_vfio.h
 rename tools/{igb_uio_bind.py => dpdk_nic_bind.py} (82%)



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