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 v7 0/7] Fix PF/VF dependency issue
Date: Wed, 28 Aug 2019 15:14:00 -0700 [thread overview]
Message-ID: <cover.1567029860.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 v6:
* Removed locking interfaces used in v6.
* Made necessary changes to PRI/PASID enable/disable calls to allow
register changes only for PF.
Changes since v5:
* Created new patches for PRI/PASID capability caching.
* Removed individual locks (pri_lock, pasid_lock) and added common
resource lock to synchronize PRI/PASID updates between PF/VF.
* Addressed comments from Bjorn Helgaas.
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: Cache PRI capability check result
PCI/ATS: Cache PASID capability check result
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 | 202 ++++++++++++++++++++++++++++------------
drivers/pci/pci.c | 7 ++
include/linux/pci-ats.h | 12 ++-
include/linux/pci.h | 3 +-
4 files changed, 159 insertions(+), 65 deletions(-)
--
2.21.0
next reply other threads:[~2019-08-28 22:18 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-28 22:14 sathyanarayanan.kuppuswamy [this message]
2019-08-28 22:14 ` [PATCH v7 1/7] PCI/ATS: Fix pci_prg_resp_pasid_required() dependency issues sathyanarayanan.kuppuswamy
2019-09-05 19:18 ` Bjorn Helgaas
2019-10-03 17:20 ` Kuppuswamy Sathyanarayanan
2019-10-03 19:04 ` Bjorn Helgaas
2019-10-03 20:37 ` Kuppuswamy Sathyanarayanan
2019-10-03 21:01 ` Bjorn Helgaas
2019-10-03 21:11 ` Kuppuswamy Sathyanarayanan
2019-10-04 12:49 ` Bjorn Helgaas
2019-08-28 22:14 ` [PATCH v7 2/7] PCI/ATS: Cache PRI capability check result sathyanarayanan.kuppuswamy
2019-08-28 22:14 ` [PATCH v7 3/7] PCI/ATS: Cache PASID " sathyanarayanan.kuppuswamy
2019-08-28 22:14 ` [PATCH v7 4/7] PCI/ATS: Add PRI support for PCIe VF devices sathyanarayanan.kuppuswamy
2019-08-28 22:14 ` [PATCH v7 5/7] PCI/ATS: Add PASID " sathyanarayanan.kuppuswamy
2019-08-28 22:14 ` [PATCH v7 6/7] PCI/ATS: Disable PF/VF ATS service independently sathyanarayanan.kuppuswamy
2019-08-28 22:14 ` [PATCH v7 7/7] PCI: Skip Enhanced Allocation (EA) initialization for VF device sathyanarayanan.kuppuswamy
2019-10-03 17:21 ` Kuppuswamy Sathyanarayanan
2019-10-03 18:57 ` Bjorn Helgaas
2019-10-03 19:20 ` Raj, Ashok
2019-09-05 19:22 ` [PATCH v7 0/7] Fix PF/VF dependency issue Bjorn Helgaas
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