diff options
| author | Eric Farman <farman@linux.ibm.com> | 2021-02-19 20:41:49 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2023-01-09 14:34:09 +0100 |
| commit | beb060ed20d5d5a54754cf78c38731a6a5cb0f18 (patch) | |
| tree | 315b3f0bca67f63124ac5824bced2c834bec2677 | |
| parent | b5a73e8eb225e3103a030c518375b4b2d0c66ccd (diff) | |
vfio/ccw: remove old IDA format restrictions
By this point, all the pieces are in place to properly support
a 2K Format-2 IDAL, and to convert a guest Format-1 IDAL to
the 2K Format-2 variety. Let's remove the fence that prohibits
them, and allow a guest to submit them if desired.
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
| -rw-r--r-- | Documentation/s390/vfio-ccw.rst | 4 | ||||
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_cp.c | 8 |
2 files changed, 2 insertions, 10 deletions
diff --git a/Documentation/s390/vfio-ccw.rst b/Documentation/s390/vfio-ccw.rst index ea928a3806f4..a11c24701dcd 100644 --- a/Documentation/s390/vfio-ccw.rst +++ b/Documentation/s390/vfio-ccw.rst @@ -219,8 +219,8 @@ values may occur: The operation was successful. ``-EOPNOTSUPP`` - The orb specified transport mode or an unidentified IDAW format, or the - scsw specified a function other than the start function. + The ORB specified transport mode or the + SCSW specified a function other than the start function. ``-EIO`` A request was issued while the device was not in a state ready to accept diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c index 1500058dbe1f..1c31e81ca8de 100644 --- a/drivers/s390/cio/vfio_ccw_cp.c +++ b/drivers/s390/cio/vfio_ccw_cp.c @@ -381,14 +381,6 @@ static int ccwchain_calc_length(u64 iova, struct channel_program *cp) cnt++; /* - * As we don't want to fail direct addressing even if the - * orb specified one of the unsupported formats, we defer - * checking for IDAWs in unsupported formats to here. - */ - if ((!cp->orb.cmd.c64 || cp->orb.cmd.i2k) && ccw_is_idal(ccw)) - return -EOPNOTSUPP; - - /* * We want to keep counting if the current CCW has the * command-chaining flag enabled, or if it is a TIC CCW * that loops back into the current chain. The latter |