s390/qeth: don't use restricted offloads for local traffic

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Current OSA models don't support TSO for traffic to local next-hops, and
some old models didn't offer TX CSO for such packets either.

So as part of .ndo_features_check, check if a packet's next-hop resides
on the same OSA Adapter. Opt out from affected HW offloads accordingly.

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

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Julian Wiedmann 2020-05-06 10:09:44 +02:00 • committed by David S. Miller

parent 1d38c2e494

commit c619e9a6f5

2 changed files with 81 additions and 4 deletions

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84

drivers/s390/net/qeth_core_main.c

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1

drivers/s390/net/qeth_l2_main.c

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