From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To: "Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Kishon Vijay Abraham I" <kishon@kernel.org>,
"Jingoo Han" <jingoohan1@gmail.com>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Jonathan Hunter" <jonathanh@nvidia.com>
Cc: linux-pci@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org, mhi@lists.linux.dev,
linux-tegra@vger.kernel.org, Niklas Cassel <cassel@kernel.org>,
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
Damien Le Moal <dlemoal@kernel.org>,
Bjorn Helgaas <helgaas@kernel.org>
Subject: [PATCH v4 00/10] PCI: endpoint: Make host reboot handling more robust
Date: Tue, 30 Apr 2024 11:43:41 +0530 [thread overview]
Message-ID: <20240430-pci-epf-rework-v4-0-22832d0d456f@linaro.org> (raw)
Hello,
This is the follow up series of [1], to improve the handling of host reboot in
the endpoint subsystem. This involves refining the PERST# and Link Down event
handling in both the controller and function drivers.
Testing
=======
This series is tested on Qcom SM8450 based development board with both MHI_EPF
and EPF_TEST function drivers. And also by Niklas on Rockchip platform.
Dependency
==========
This series depends on [1] and [2] which are currently in pci/next.
- Mani
[1] https://lore.kernel.org/linux-pci/20240314-pci-dbi-rework-v10-0-14a45c5a938e@linaro.org/
[2] https://lore.kernel.org/linux-pci/20240320113157.322695-1-cassel@kernel.org/
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
Changes in v4:
- Reworded the pci_epc_bme_notify() Kdoc (Bjorn)
- Added a patch to drop 'Link is enabled' for BME event (Bjorn)
- Collected tags from Niklas
- Rebased on top of pci/next
Changes in v3:
- Dropped the patch that split epc_events into two
- Added a patch to rename BME to Bus Master Enable
- Added back the comment for REBAR
- Switched to cancel_delayed_work_sync() for Link Down event
- Rebased on top of pci/next
- Dropped the tested-by tag from Niklas as I'd like to get this series tested
one more time due to changes
- Link to v2: https://lore.kernel.org/r/20240401-pci-epf-rework-v2-0-970dbe90b99d@linaro.org
Changes in v2:
- Dropped the {start/stop}_link rework patches
- Incorporated comments from Niklas
- Collected review tags
- Rebased on top of v6.9-rc1 and https://lore.kernel.org/linux-pci/20240320113157.322695-1-cassel@kernel.org/
- Link to v1: https://lore.kernel.org/r/20240314-pci-epf-rework-v1-0-6134e6c1d491@linaro.org
---
Manivannan Sadhasivam (10):
PCI: qcom-ep: Disable resources unconditionally during PERST# assert
PCI: endpoint: Rename core_init() callback in 'struct pci_epc_event_ops' to epc_init()
PCI: endpoint: Rename BME to Bus Master Enable
PCI: qcom-ep: Drop 'Link is enabled' from the debug message for BME event
PCI: endpoint: pci-epf-test: Refactor pci_epf_test_unbind() function
PCI: endpoint: pci-epf-{mhi/test}: Move DMA initialization to EPC init callback
PCI: endpoint: Introduce 'epc_deinit' event and notify the EPF drivers
PCI: dwc: ep: Add a generic dw_pcie_ep_linkdown() API to handle Link Down event
PCI: qcom-ep: Use the generic dw_pcie_ep_linkdown() API to handle Link Down event
PCI: endpoint: pci-epf-test: Handle Link Down event
drivers/pci/controller/dwc/pcie-designware-ep.c | 104 ++++++++++++++++--------
drivers/pci/controller/dwc/pcie-designware.h | 5 ++
drivers/pci/controller/dwc/pcie-qcom-ep.c | 13 +--
drivers/pci/controller/dwc/pcie-tegra194.c | 1 +
drivers/pci/endpoint/functions/pci-epf-mhi.c | 47 +++++++----
drivers/pci/endpoint/functions/pci-epf-test.c | 95 ++++++++++++++++------
drivers/pci/endpoint/pci-epc-core.c | 60 ++++++++++----
include/linux/pci-epc.h | 3 +-
include/linux/pci-epf.h | 10 ++-
9 files changed, 231 insertions(+), 107 deletions(-)
---
base-commit: b4d6d92902f50a577021f2cc08ac680b10658aca
change-id: 20240314-pci-epf-rework-a6e65b103a79
Best regards,
--
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
next reply other threads:[~2024-04-30 6:13 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 6:13 Manivannan Sadhasivam [this message]
2024-04-30 6:13 ` [PATCH v4 01/10] PCI: qcom-ep: Disable resources unconditionally during PERST# assert Manivannan Sadhasivam
2024-04-30 6:13 ` [PATCH v4 02/10] PCI: endpoint: Rename core_init() callback in 'struct pci_epc_event_ops' to epc_init() Manivannan Sadhasivam
2024-04-30 6:13 ` [PATCH v4 03/10] PCI: endpoint: Rename BME to Bus Master Enable Manivannan Sadhasivam
2024-04-30 6:13 ` [PATCH v4 04/10] PCI: qcom-ep: Drop 'Link is enabled' from the debug message for BME event Manivannan Sadhasivam
2024-04-30 8:05 ` Niklas Cassel
2024-04-30 6:13 ` [PATCH v4 05/10] PCI: endpoint: pci-epf-test: Refactor pci_epf_test_unbind() function Manivannan Sadhasivam
2024-04-30 6:13 ` [PATCH v4 06/10] PCI: endpoint: pci-epf-{mhi/test}: Move DMA initialization to EPC init callback Manivannan Sadhasivam
2024-04-30 6:13 ` [PATCH v4 07/10] PCI: endpoint: Introduce 'epc_deinit' event and notify the EPF drivers Manivannan Sadhasivam
2024-04-30 6:13 ` [PATCH v4 08/10] PCI: dwc: ep: Add a generic dw_pcie_ep_linkdown() API to handle Link Down event Manivannan Sadhasivam
2024-04-30 6:13 ` [PATCH v4 09/10] PCI: qcom-ep: Use the " Manivannan Sadhasivam
2024-04-30 6:13 ` [PATCH v4 10/10] PCI: endpoint: pci-epf-test: Handle " Manivannan Sadhasivam
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