Manivannan Sadhasivam 0d5d5738dc PCI: epf-mhi: Add support for DMA async read/write operation ... The driver currently supports only the sync read/write operation i.e., it waits for the DMA transfer to complete before returning to the caller (MHI stack). But it is sub-optimal and defeats the actual purpose of using DMA. So let's add support for DMA async read/write operation by skipping the DMA transfer completion and returning to the caller immediately. When the completion actually happens later, the driver will be notified using the DMA completion handler and in turn it will notify the caller using the newly introduced callback in "struct mhi_ep_buf_info". Since the DMA completion handler is invoked from the interrupt context, a separate workqueue (epf_mhi->dma_wq) is used to notify the caller about the completion of the transfer. Acked-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>		2023-12-14 11:58:53 +05:30
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Kconfig	PCI: endpoint: Add PCI Endpoint function driver for MHI bus	2023-06-23 15:05:49 -05:00
Makefile	PCI: endpoint: Add PCI Endpoint function driver for MHI bus	2023-06-23 15:05:49 -05:00
pci-epf-mhi.c	PCI: epf-mhi: Add support for DMA async read/write operation	2023-12-14 11:58:53 +05:30
pci-epf-ntb.c	PCI: endpoint: Pass EPF device ID to the probe function	2023-06-23 15:05:03 -05:00
pci-epf-test.c	PCI: endpoint: Pass EPF device ID to the probe function	2023-06-23 15:05:03 -05:00
pci-epf-vntb.c	PCI: Fix typos in docs and comments	2023-08-25 08:15:38 -05:00