switchtec: Add IOCTLs to the Switchtec driver

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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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Logan Gunthorpe 2017-03-02 16:24:34 -07:00 • committed by Bjorn Helgaas

parent 5d8e1881f4

commit 52eabba5bc

5 changed files with 642 additions and 0 deletions

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include/uapi/linux/switchtec_ioctl.h

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