[PATCH 0/2] IOMMU pools for better scalability

[PATCH 0/2] IOMMU pools for better scalability

[Sowmini Varadhan]

This patch series follows up on the suggestion in
  http://www.spinics.net/lists/sparclinux/msg13230.html

Patch 1 of the series adds the infra-structure functions
for range alloc/free into (new file) lib/iomm-common.c

Patch 2 of the series makes sparc64 use this via changes
to pci_sun4v.c

Sowmini Varadhan (2):
  Break up monolithic iommu table/lock into finer graularity pools and
    lock
  Make sparc64 use scalable lib/iommu-common.c functions

 arch/sparc/kernel/pci_impl.h  |    7 ++-
 arch/sparc/kernel/pci_sun4v.c |  201 +++++++++++++++++++----------------------
 include/linux/iommu-common.h  |   70 ++++++++++++++
 lib/Makefile                  |    2 +-
 lib/iommu-common.c            |  200 ++++++++++++++++++++++++++++++++++++++++
 5 files changed, 370 insertions(+), 110 deletions(-)
 create mode 100644 include/linux/iommu-common.h
 create mode 100644 lib/iommu-common.c

Re: [PATCH 0/2] IOMMU pools for better scalability

[Sowmini Varadhan]

On (12/22/14 17:43), Sowmini Varadhan wrote:
> 
> This patch series follows up on the suggestion in
>   http://www.spinics.net/lists/sparclinux/msg13230.html
> 
> Patch 1 of the series adds the infra-structure functions
> for range alloc/free into (new file) lib/iomm-common.c
> 
> Patch 2 of the series makes sparc64 use this via changes
> to pci_sun4v.c

Hello,

Any preliminary comments on this patch? Do I need to improve/supply
something else?

--Sowmini

Re: [PATCH 0/2] IOMMU pools for better scalability

[David Miller]

From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Date: Thu, 8 Jan 2015 14:43:27 -0500

> Any preliminary comments on this patch? Do I need to improve/supply
> something else?

You need to do one thing, which is be patient :-)

I've been travelling and combine that with the fact that
sparc work takes a strong second seat to my networking
maintainence responsibilities, the result is that sparc
stuff won't get looked at for a while.