[dpdk-dev] [PATCH 0/9] pci cleanup and blacklist rework

[David Marchand <david.marchand@6wind.com>]

Before 2.2.0 release, while preparing for more changes in eal (and fixing
a problem reported by Roger M. [1]), I came up with this patchset that
tries to make the pci code more compact and easier to read.

I did limited testing, but this has been in my tree for quite some time
now, so sending this to get feedback for 2.3 / 16.04.


The 4th patch introduces a change in linux eal.
Before, if a pci device was bound to no kernel driver, eal would set kdrv
to "unknown". With this change, kdrv is set to "none".
This might make it possible to avoid the old issue of virtio devices being
used by dpdk while still bound to kernel driver reported by Franck B. [2].
I'll let virtio guys look at this.
At the very least, it makes more sense to me.


The 5th and 6th patches could be squashed.
I just find it easier to review this way.


In the 8th patch, I noticed that a driver lookup is done when detaching a
pci device while this makes no sense and looks buggy to me.


The last patch moves pci blacklist evaluation to rte_eal_pci_probe().
With this, it is now possible to attach a pci device blacklisted
initially.
I am not entirely happy with this last patch, I will try to send a
different solution next week (hooks in pci layer).


[1] http://dpdk.org/ml/archives/dev/2015-November/028140.html
[2] http://dpdk.org/ml/archives/dev/2015-September/023389.html

-- 
David Marchand

David Marchand (9):
  pci: no need for dynamic tailq init
  pci: add internal device list helpers
  pci: minor cleanup
  pci: rework sysfs parsing for driver
  pci: factorize probe/detach code
  pci: cosmetic change
  pci: factorize driver search
  pci: remove driver lookup from detach
  pci: blacklist only in global probe function

 lib/librte_eal/bsdapp/eal/eal_pci.c     |  37 +---
 lib/librte_eal/common/eal_common_pci.c  | 320 +++++++++++++++-----------------
 lib/librte_eal/common/include/rte_pci.h |  24 +++
 lib/librte_eal/linuxapp/eal/eal_pci.c   |  94 ++++------
 4 files changed, 218 insertions(+), 257 deletions(-)

-- 
1.9.1