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| author |   Julian Wiedmann <jwi@linux.vnet.ibm.com> | 2017-06-20 16:00:34 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-06-20 15:44:21 -0400 |
| commit | ec61bd2fd2a27bf7368261b230ef54fe34d1cce3 (patch) | |
| tree | 2d548e40b8b5eae5d19e8091572b5c2516a9c7dd /drivers/net | |
| parent | s390/diag: add diag26c support (diff) | |
| download | linux-dev-ec61bd2fd2a27bf7368261b230ef54fe34d1cce3.tar.xz linux-dev-ec61bd2fd2a27bf7368261b230ef54fe34d1cce3.zip | |
s390/qeth: use diag26c to get MAC address on L2
When a s390 guest runs on a z/VM host that's part of a SSI cluster,
it can be migrated to a different host. In this case, the MAC address
it originally obtained on the old host may be re-assigned to a new
guest. This would result in address conflicts between the two guests.
When running as z/VM guest, use the diag26c MAC Service to obtain
a hypervisor-managed MAC address. The MAC Service is SSI-aware, and
won't re-assign the address after the guest is migrated to a new host.
This patch adds support for the z/VM MAC Service on L2 devices.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
0 files changed, 0 insertions, 0 deletions