Niklas Schnelle 1f3f76812d s390/pci: improve DMA translation init and exit ... Currently zpci_dma_init_device()/zpci_dma_exit_device() is called as part of zpci_enable_device()/zpci_disable_device() and errors for zpci_dma_exit_device() are always ignored even if we could abort. Improve upon this by moving zpci_dma_exit_device() out of zpci_disable_device() and check for errors whenever we have a way to abort the current operation. Note that for example in zpci_event_hard_deconfigured() the device is expected to be gone so we really can't abort and proceed even in case of error. Similarly move the cc == 3 special case out of zpci_unregister_ioat() and into the callers allowing to abort when finding an already disabled devices precludes proceeding with the operation. While we are at it log IOAT register/unregister errors in the s390 debugfs log, Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>		2021-08-25 11:03:34 +02:00
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asm	s390/pci: improve DMA translation init and exit	2021-08-25 11:03:34 +02:00
uapi/asm	s390: add struct tpi_info to struct pt_regs	2021-06-07 17:07:01 +02:00