s390/qeth: handle error due to unsupported transport mode
authorJulian Wiedmann <jwi@linux.ibm.com>
Wed, 18 Dec 2019 15:32:26 +0000 (16:32 +0100)
committerDavid S. Miller <davem@davemloft.net>
Sat, 21 Dec 2019 05:00:27 +0000 (21:00 -0800)
commit2e3d7fa5d29b7ab649fdf8f9533ae0c0888a7fac
tree4ad66ce7f42065fb207e878d13bd2cd158fc263c
parentea8608d401def015e83c2c32ed6c32996abb3ed2
s390/qeth: handle error due to unsupported transport mode

Along with z/VM NICs, there's additional device types that only support
a specific transport mode (eg. external-bridged IQD).
Identify the corresponding error code, and raise a fitting error message
so that the user knows to adjust their device configuration.

On top of that also fix the subsequent error path, so that the rejected
cmd doesn't need to wait for a timeout but gets cancelled straight away.

Fixes: 4a71df50047f ("qeth: new qeth device driver")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/s390/net/qeth_core_main.c
drivers/s390/net/qeth_core_mpc.h