wireguard-linux/drivers/pci/endpoint, branch jd/unified-crypt-queue

PCI: dwc: Fix dw_pcie_ep_raise_msix_irq() to get correct MSI-X table address

2020-04-02T16:57:10Z

commit beb4641a787d ("PCI: dwc: Add MSI-X callbacks handler"), in order to raise MSI-X interrupt, obtained MSIX table address from Base Address Register (BAR). However BAR only holds PCI address programmed by the host whereas the MSI-X table should be in the local memory. Store the MSI-X table address (virtual address) as part of ->set_bar() callback and use that to get the message address and message data here. Fixes: beb4641a787d ("PCI: dwc: Add MSI-X callbacks handler") Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lorenzo Pieralisi

PCI: endpoint: Fix ->set_msix() to take BIR and offset as arguments

2020-04-02T16:57:10Z

commit 8963106eabdc ("PCI: endpoint: Add MSI-X interfaces") while adding support to raise MSI-X interrupts from endpoint didn't include BAR Indicator register (BIR) configuration and MSI-X table offset as arguments in pci_epc_set_msix(). This would result in endpoint controller register using random BAR indicator register, the memory for which might not be allocated by the endpoint function driver. Add BAR indicator register and MSI-X table offset as arguments in pci_epc_set_msix() and allocate space for MSI-X table and pending bit array (PBA) in pci-epf-test endpoint function driver. Fixes: 8963106eabdc ("PCI: endpoint: Add MSI-X interfaces") Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lorenzo Pieralisi

PCI: endpoint: functions/pci-epf-test: Print throughput information

2020-04-02T16:57:10Z

Print throughput information in KB/s after every completed transfer, including information on whether DMA is used or not. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lorenzo Pieralisi Tested-by: Alan Mikhak

PCI: endpoint: functions/pci-epf-test: Add DMA support to transfer data

2020-04-02T16:57:01Z

Use dmaengine API and add support for transferring data using DMA. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lorenzo Pieralisi Tested-by: Alan Mikhak

PCI: endpoint: Fix clearing start entry in configfs

2020-03-31T08:13:27Z

After an endpoint is started through configfs, if 0 is written to the configfs entry 'start', the controller stops but the epc_group->start value remains 1. A subsequent unlinking of the function from the controller would trigger a spurious WARN_ON_ONCE() in pci_epc_epf_unlink() despite right behavior. Fix it by setting epc_group->start = 0 when a controller is stopped using configfs. Fixes: d74679911610 ("PCI: endpoint: Introduce configfs entry for configuring EP functions") Signed-off-by: Kunihiko Hayashi Signed-off-by: Lorenzo Pieralisi Acked-by: Kishon Vijay Abraham I Cc: Kishon Vijay Abraham I

PCI: pci-epf-test: Add support to defer core initialization

2020-02-26T09:58:41Z

Add support to defer core initialization for the endpoint mode of operation. This would enable support for implementations where the core initialization needs to be deferred until the PCIe reference clock is available from the host system. Signed-off-by: Vidya Sagar [lorenzo.pieralisi@arm.com: commit log] Signed-off-by: Lorenzo Pieralisi Acked-by: Kishon Vijay Abraham I

PCI: endpoint: Add notification for core init completion

2020-02-25T12:02:25Z

Add support to send notifications to EPF from EPC once the core registers initialization is complete. Signed-off-by: Vidya Sagar Signed-off-by: Lorenzo Pieralisi Acked-by: Kishon Vijay Abraham I

PCI: endpoint: Assign function number for each PF in EPC core

2020-02-24T10:15:45Z

The PCIe endpoint core relies on the drivers that invoke the pci_epc_add_epf() API to allocate and assign a function number to each physical function (PF). 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. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lorenzo Pieralisi

PCI: endpoint: Protect concurrent access to pci_epf_ops with mutex

2020-02-24T10:15:33Z

Protect concurrent access to pci_epf_ops with a mutex. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lorenzo Pieralisi

PCI: endpoint: Fix for concurrent memory allocation in OB address region

2020-02-24T10:13:48Z

pci-epc-mem uses a bitmap to manage the Endpoint outbound (OB) address region. This address region will be shared by multiple endpoint functions (in the case of multi function endpoint) and it has to be protected from concurrent access to avoid updating an inconsistent state. Use a mutex to protect bitmap updates to prevent the memory allocation API from returning incorrect addresses. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lorenzo Pieralisi Cc: stable@vger.kernel.org # v4.14+