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From: sathyanarayanan.kuppuswamy@linux.intel.com
To: bhelgaas@google.com
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	ashok.raj@intel.com, keith.busch@intel.com,
	sathyanarayanan.kuppuswamy@linux.intel.com
Subject: [PATCH v5 0/7] Fix PF/VF dependency issue
Date: Thu,  1 Aug 2019 17:05:57 -0700
Message-ID: <cover.1564702313.git.sathyanarayanan.kuppuswamy@linux.intel.com> (raw)

From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>

Current implementation of ATS, PASID, PRI does not handle VF dependencies
correctly. Following patches addresses this issue.

Changes since v4:
 * Defined empty functions for pci_pri_init() and pci_pasid_init() for cases
   where CONFIG_PCI_PRI and CONFIG_PCI_PASID are not enabled.

Changes since v3:
 * Fixed critical path (lock context) in pci_restore_*_state functions.

Changes since v2:
 * Added locking mechanism to synchronize accessing PF registers in VF.
 * Removed spec compliance checks in patches.
 * Addressed comments from Bjorn Helgaas.

Changes since v1:
 * Added more details about the patches in commit log.
 * Removed bulk spec check patch.
 * Addressed comments from Bjorn Helgaas.

Kuppuswamy Sathyanarayanan (7):
  PCI/ATS: Fix pci_prg_resp_pasid_required() dependency issues
  PCI/ATS: Initialize PRI in pci_ats_init()
  PCI/ATS: Initialize PASID in pci_ats_init()
  PCI/ATS: Add PRI support for PCIe VF devices
  PCI/ATS: Add PASID support for PCIe VF devices
  PCI/ATS: Disable PF/VF ATS service independently
  PCI: Skip Enhanced Allocation (EA) initialization for VF device

 drivers/pci/ats.c       | 373 ++++++++++++++++++++++++++++++----------
 drivers/pci/pci.c       |   7 +
 include/linux/pci-ats.h |  22 ++-
 include/linux/pci.h     |   7 +-
 4 files changed, 315 insertions(+), 94 deletions(-)

-- 
2.21.0


             reply index

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-02  0:05 sathyanarayanan.kuppuswamy [this message]
2019-08-02  0:05 ` [PATCH v5 1/7] PCI/ATS: Fix pci_prg_resp_pasid_required() dependency issues sathyanarayanan.kuppuswamy
2019-08-12 20:04   ` Bjorn Helgaas
2019-08-12 20:20     ` sathyanarayanan kuppuswamy
2019-08-13  3:51       ` Bjorn Helgaas
2019-08-16 18:06         ` Kuppuswamy Sathyanarayanan
2019-08-02  0:05 ` [PATCH v5 2/7] PCI/ATS: Initialize PRI in pci_ats_init() sathyanarayanan.kuppuswamy
2019-08-12 20:04   ` Bjorn Helgaas
2019-08-12 21:35     ` sathyanarayanan kuppuswamy
2019-08-13  4:10       ` Bjorn Helgaas
2019-08-15  4:46   ` Bjorn Helgaas
2019-08-15 17:30     ` Kuppuswamy Sathyanarayanan
2019-08-16 17:31       ` Bjorn Helgaas
2019-08-02  0:06 ` [PATCH v5 3/7] PCI/ATS: Initialize PASID " sathyanarayanan.kuppuswamy
2019-08-12 20:04   ` Bjorn Helgaas
2019-08-15  4:48   ` Bjorn Helgaas
2019-08-15  4:56   ` Bjorn Helgaas
2019-08-15 17:31     ` Kuppuswamy Sathyanarayanan
2019-08-02  0:06 ` [PATCH v5 4/7] PCI/ATS: Add PRI support for PCIe VF devices sathyanarayanan.kuppuswamy
2019-08-12 20:04   ` Bjorn Helgaas
2019-08-12 21:40     ` sathyanarayanan kuppuswamy
2019-08-13  4:16   ` Bjorn Helgaas
2019-08-15 22:20   ` Bjorn Helgaas
2019-08-15 22:39     ` Kuppuswamy Sathyanarayanan
2019-08-19 14:15       ` Bjorn Helgaas
2019-08-19 22:53         ` Kuppuswamy Sathyanarayanan
2019-08-19 23:19           ` Bjorn Helgaas
2019-08-28 18:21             ` Kuppuswamy Sathyanarayanan
2019-08-28 18:57               ` Bjorn Helgaas
2019-08-02  0:06 ` [PATCH v5 5/7] PCI/ATS: Add PASID " sathyanarayanan.kuppuswamy
2019-08-12 20:05   ` Bjorn Helgaas
2019-08-13 22:19     ` Kuppuswamy Sathyanarayanan
2019-08-15  5:04       ` Bjorn Helgaas
2019-08-16  1:21         ` Kuppuswamy Sathyanarayanan
2019-08-02  0:06 ` [PATCH v5 6/7] PCI/ATS: Disable PF/VF ATS service independently sathyanarayanan.kuppuswamy
2019-08-02  0:06 ` [PATCH v5 7/7] PCI: Skip Enhanced Allocation (EA) initialization for VF device sathyanarayanan.kuppuswamy

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