diff options
| 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/s390/net/qeth_core.h | |
| 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/s390/net/qeth_core.h')
| -rw-r--r-- | drivers/s390/net/qeth_core.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index 0efc54a4d82f..7a0ffc71b25d 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -986,6 +986,7 @@ struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, int qeth_set_features(struct net_device *, netdev_features_t); int qeth_recover_features(struct net_device *); netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); +int qeth_vm_request_mac(struct qeth_card *card); /* exports for OSN */ int qeth_osn_assist(struct net_device *, void *, int); |