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[0/5] Improvements to PCIe Endpoint Core

Message ID 20191231100331.6316-1-kishon@ti.com
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Series Improvements to PCIe Endpoint Core | expand

Message

Kishon Vijay Abraham I Dec. 31, 2019, 10:03 a.m. UTC 
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.

This series is created on top of [1] and [2]
[1] -> http://lore.kernel.org/r/20191209092147.22901-1-kishon@ti.com
[2] -> http://lore.kernel.org/r/20191230123315.31037-1-kishon@ti.com

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: Protect concurrent access to memory allocation with
    mutex
  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(-)

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2.17.1