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[v3,0/5] PCI: Endpoint: Miscellaneous improvements

Message ID 20200224095338.3758-1-kishon@ti.com (mailing list archive)
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Series PCI: Endpoint: Miscellaneous improvements | expand

Message

Kishon Vijay Abraham I Feb. 24, 2020, 9:53 a.m. UTC
Changes from v2:
*) Added "Tested-by" tag from Vidya Sagar
*) Added stable fixes tag to "Fix for concurrent memory allocation in
   OB address region"
   
Changes from v1:
Rebased to Linux 5.6-rc1 and removed dependencies to my other series
to unblock [1]

[1] -> http://lore.kernel.org/r/20200103100736.27627-1-vidyas@nvidia.com

v1 of this patch series can be found @
http://lore.kernel.org/r/20191231100331.6316-1-kishon@ti.com

This series adds miscellaneous improvements to PCIe endpoint core.
1) Protect concurrent access to memory allocation in pci-epc-mem
2) Replace spinlock with mutex in pci-epc-core and also use
   notification chain mechanism to notify EPC events to EPF driver.
3) Since endpoint function device can be created by multiple
   mechanisms (configfs, devicetree, etc..), allowing each of these
   mechanisms to assign a function number would result in mutliple
   endpoint function devices having the same function number. In order
   to avoid this, let EPC core assign a function number to the
   endpoint device.

Kishon Vijay Abraham I (5):
  PCI: endpoint: Use notification chain mechanism to notify EPC events
    to EPF
  PCI: endpoint: Replace spinlock with mutex
  PCI: endpoint: Fix for concurrent memory allocation in OB address
    region
  PCI: endpoint: Protect concurrent access to pci_epf_ops with mutex
  PCI: endpoint: Assign function number for each PF in EPC core

 drivers/pci/endpoint/functions/pci-epf-test.c |  13 +-
 drivers/pci/endpoint/pci-ep-cfs.c             |  27 +----
 drivers/pci/endpoint/pci-epc-core.c           | 113 ++++++++----------
 drivers/pci/endpoint/pci-epc-mem.c            |  10 +-
 drivers/pci/endpoint/pci-epf-core.c           |  33 ++---
 include/linux/pci-epc.h                       |  19 ++-
 include/linux/pci-epf.h                       |   9 +-
 7 files changed, 108 insertions(+), 116 deletions(-)

Comments

Lorenzo Pieralisi Feb. 24, 2020, 10:34 a.m. UTC | #1
On Mon, Feb 24, 2020 at 03:23:33PM +0530, Kishon Vijay Abraham I wrote:
> Changes from v2:
> *) Added "Tested-by" tag from Vidya Sagar
> *) Added stable fixes tag to "Fix for concurrent memory allocation in
>    OB address region"
>    
> Changes from v1:
> Rebased to Linux 5.6-rc1 and removed dependencies to my other series
> to unblock [1]
> 
> [1] -> http://lore.kernel.org/r/20200103100736.27627-1-vidyas@nvidia.com
> 
> v1 of this patch series can be found @
> http://lore.kernel.org/r/20191231100331.6316-1-kishon@ti.com
> 
> This series adds miscellaneous improvements to PCIe endpoint core.
> 1) Protect concurrent access to memory allocation in pci-epc-mem
> 2) Replace spinlock with mutex in pci-epc-core and also use
>    notification chain mechanism to notify EPC events to EPF driver.
> 3) Since endpoint function device can be created by multiple
>    mechanisms (configfs, devicetree, etc..), allowing each of these
>    mechanisms to assign a function number would result in mutliple
>    endpoint function devices having the same function number. In order
>    to avoid this, let EPC core assign a function number to the
>    endpoint device.
> 
> Kishon Vijay Abraham I (5):
>   PCI: endpoint: Use notification chain mechanism to notify EPC events
>     to EPF
>   PCI: endpoint: Replace spinlock with mutex
>   PCI: endpoint: Fix for concurrent memory allocation in OB address
>     region
>   PCI: endpoint: Protect concurrent access to pci_epf_ops with mutex
>   PCI: endpoint: Assign function number for each PF in EPC core
> 
>  drivers/pci/endpoint/functions/pci-epf-test.c |  13 +-
>  drivers/pci/endpoint/pci-ep-cfs.c             |  27 +----
>  drivers/pci/endpoint/pci-epc-core.c           | 113 ++++++++----------
>  drivers/pci/endpoint/pci-epc-mem.c            |  10 +-
>  drivers/pci/endpoint/pci-epf-core.c           |  33 ++---
>  include/linux/pci-epc.h                       |  19 ++-
>  include/linux/pci-epf.h                       |   9 +-
>  7 files changed, 108 insertions(+), 116 deletions(-)

Applied to pci/endpoint for v5.7, thanks.

Lorenzo