On Fri, Feb 07, 2020 at 04:03:30PM -0800, sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx wrote: > From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> > > This patchset adds support for following features: > > 1. Error Disconnect Recover (EDR) support. > 2. _OSC based negotiation support for DPC. > > You can find EDR spec in the following link. > > https://members.pcisig.com/wg/PCI-SIG/document/12614 Hi Sathy, Bad timing! Linus tagged v5.6-rc1 on Feb 9, shortly after you posted this. Would you mind refreshing this so it applies on my "master" branch (v5.6-rc1)? > Changes since v13: > * Moved all EDR related code to edr.c > * Addressed Bjorns comments. > > Changes since v12: > * Addressed Bjorns comments. > * Added check for CONFIG_PCIE_EDR before requesting DPC control from firmware. > * Removed ff_check parameter from AER APIs. > * Used macros for _OST return status values in DPC driver. > > Changes since v11: > * Allowed error recovery to proceed after successful reset_link(). > * Used correct ACPI handle for sending EDR status. > * Rebased on top of v5.5-rc5 > > Changes since v10: > * Added "edr_enabled" member to dpc priv structure, which is used to cache EDR > enabling status based on status of pcie_ports_dpc_native and FF mode. > * Changed type of _DSM argument from Integer to Package in acpi_enable_dpc_port() > function to fix ACPI related boot warnings. > * Rebased on top of v5.5-rc3 > > Changes since v9: > * Removed caching of pcie_aer_get_firmware_first() in dpc driver. > * Added proper spec reference in git log for patch 5 & 7. > * Added new function parameter "ff_check" to pci_cleanup_aer_uncorrect_error_status(), > pci_aer_clear_fatal_status() and pci_cleanup_aer_error_status_regs() functions. > * Rebased on top of v5.4-rc5 > > Changes since v8: > * Rebased on top of v5.4-rc1 > > Changes since v7: > * Updated DSM version number to match the spec. > > Changes since v6: > * Modified the order of patches to enable EDR only after all necessary support is added in kernel. > * Addressed Bjorn comments. > > Changes since v5: > * Addressed Keith's comments. > * Added additional check for FF mode in pci_aer_init(). > * Updated commit history of "PCI/DPC: Add support for DPC recovery on NON_FATAL errors" patch. > > Changes since v4: > * Rebased on top of v5.3-rc1 > * Fixed lock/unlock issue in edr_handle_event(). > * Merged "Update error status after reset_link()" patch into this patchset. > > Changes since v3: > * Moved EDR related ACPI functions/definitions to pci-acpi.c > * Modified commit history in few patches to include spec reference. > * Added support to handle DPC triggered by NON_FATAL errors. > * Added edr_lock to protect PCI device receiving duplicate EDR notifications. > * Addressed Bjorn comments. > > Changes since v2: > * Split EDR support patch into multiple patches. > * Addressed Bjorn comments. > > Changes since v1: > * Rebased on top of v5.1-rc1 > > Kuppuswamy Sathyanarayanan (5): > PCI/ERR: Update error status after reset_link() > PCI/DPC: Remove pcie_device reference from dpc_dev structure > PCI/EDR: Export AER, DPC and error recovery functions > PCI/DPC: Add Error Disconnect Recover (EDR) support > PCI/ACPI: Enable EDR support > > drivers/acpi/pci_root.c | 16 +++ > drivers/pci/pci-acpi.c | 3 + > drivers/pci/pci.h | 8 ++ > drivers/pci/pcie/Kconfig | 10 ++ > drivers/pci/pcie/Makefile | 1 + > drivers/pci/pcie/aer.c | 39 ++++-- > drivers/pci/pcie/dpc.c | 92 ++++++++------ > drivers/pci/pcie/dpc.h | 20 +++ > drivers/pci/pcie/edr.c | 259 ++++++++++++++++++++++++++++++++++++++ > drivers/pci/pcie/err.c | 35 ++++-- > drivers/pci/probe.c | 1 + > include/linux/acpi.h | 6 +- > include/linux/pci-acpi.h | 8 ++ > include/linux/pci.h | 1 + > 14 files changed, 441 insertions(+), 58 deletions(-) > create mode 100644 drivers/pci/pcie/dpc.h > create mode 100644 drivers/pci/pcie/edr.c > > -- > 2.21.0 >
