[dpdk-dev] [PATCH 0/5] Generalize PCI specific EAL function/structures

[Shreyansh Jain]

From: Jan Viktorin <viktorin at rehivetech.com>

(I rebased these over HEAD e228563)

These patches were initially part of Jan's original series on SoC Framework
([1],[2]). An update to that series, without these patches, was posted by me
here [3].

Main motivation for these is aim of introducing a non-PCI centric subsystem
in EAL. As of now the first usecase is SoC, but not limited to it.

5 patches in this series are independent of each other, as well as SoC
framework. All these focus on generalizing some structure or functions
present with the PCI specific code to EAL Common area (or splitting a 
function to be more userful).

 - 0001: move the rte_kernel_driver enum from rte_pci to rte_dev. As of now
   this structure is embedded in rte_pci_device, but, going ahead it can be
   part of other rte_xxx_device structures. Either way, it has no impact on
   PCI.
 - 0002: eal_parse_sysfs_value function has been split into two, one
   accepting filename and other working on a file object. This is helpful if
   multiple calls to this are made from EAL - that way infra can maintain a
   file object.
 - 0003: Functions pci_map_resource/pci_unmap_resource are moved to EAL
   common as rte_eal_map_resource/rte_eal_unmap_resource, respectively.
 - 0004: Split the  pci_unbind_kernel_driver into two, still working on the
   PCI BDF sysfs layout, first handles the file path (and validations) and
   second does the actual unbind. The second part might be useful in case of
   non-PCI layouts.
 - 0005: Move pci_get_kernel_driver_by_path to
   rte_eal_get_kernel_driver_by_path in EAL common. This function is generic
   for any sysfs compliant driver and can be re-used by other non-PCI
   subsystem.

If need be, I can propose them as 5 separate patches - but I think clubbing
them together makes more sense (these are loosely related).

[1] http://dpdk.org/ml/archives/dev/2016-January/030915.html
[2] http://www.dpdk.org/ml/archives/dev/2016-May/038486.html
[3] http://dpdk.org/ml/archives/dev/2016-August/045993.html

Jan Viktorin (5):
  eal: make enum rte_kernel_driver non-PCI specific
  eal: extract function eal_parse_sysfs_valuef
  eal: Convert pci_(un)map_resource to rte_eal_(un)map_resource
  eal/linux: extract function rte_eal_unbind_kernel_driver
  eal/linux: extract function rte_eal_get_kernel_driver_by_path

 lib/librte_eal/bsdapp/eal/eal_pci.c             |  2 +-
 lib/librte_eal/bsdapp/eal/rte_eal_version.map   |  8 +++
 lib/librte_eal/common/eal_common_dev.c          | 39 +++++++++++
 lib/librte_eal/common/eal_common_pci.c          | 39 -----------
 lib/librte_eal/common/eal_common_pci_uio.c      | 16 +++--
 lib/librte_eal/common/eal_filesystem.h          |  5 ++
 lib/librte_eal/common/eal_private.h             | 27 ++++++++
 lib/librte_eal/common/include/rte_dev.h         | 44 ++++++++++++
 lib/librte_eal/common/include/rte_pci.h         | 41 -----------
 lib/librte_eal/linuxapp/eal/eal.c               | 91 ++++++++++++++++++++++---
 lib/librte_eal/linuxapp/eal/eal_pci.c           | 62 +++--------------
 lib/librte_eal/linuxapp/eal/eal_pci_uio.c       |  2 +-
 lib/librte_eal/linuxapp/eal/eal_pci_vfio.c      |  5 +-
 lib/librte_eal/linuxapp/eal/rte_eal_version.map |  8 +++
 14 files changed, 234 insertions(+), 155 deletions(-)

-- 
2.7.4