switchtec: Add IOCTLs to the Switchtec driver
Add a couple of special IOCTLs to: * Inform userspace of firmware partition locations * Pass event counts and allow userspace to wait on events * Translate PFF numbers used by the switch to port numbers [Dan Carpenter <dan.carpenter@oracle.com>: fix off-by-one in ioctl_event_ctl()] Tested-by:Krishna Dhulipala <krishnad@fb.com> Signed-off-by:
Logan Gunthorpe <logang@deltatee.com> Signed-off-by:
Stephen Bates <stephen.bates@microsemi.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Reviewed-by:
Wei Zhang <wzhang@fb.com> Reviewed-by:
Jens Axboe <axboe@fb.com>
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