s390/qeth: simplify max MTU handling

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When the MPC initialization code discovers the HW-specific max MTU,
apply the resulting changes straight to the netdevice.

If this is the device's first initialization, also set its MTU
(HiperSockets: the max MTU; else: a layer-specific default value).
Then cap the current MTU by the new max MTU.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Julian Wiedmann 2018-07-19 12:43:53 +02:00 • committed by David S. Miller

parent 92d2720969

commit 8ce7a9e064

4 changed files with 45 additions and 41 deletions

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2

drivers/s390/net/qeth_core.h

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82

drivers/s390/net/qeth_core_main.c

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1

drivers/s390/net/qeth_l2_main.c

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1

drivers/s390/net/qeth_l3_main.c

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