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linux/drivers/infiniband/hw
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Danit Goldberg 4bbd4923d1 IB/mlx5: Return the administrative GUID if exists 
A user can change the operational GUID (a.k.a affective GUID) through
link/infiniband. Therefore it is preferred to return the currently set
GUID if it exists instead of the operational.

This way the PF can query which VF GUID will be set in the next bind.  In
order to align with MAC address, zero is returned if administrative GUID
is not set.

For example, before setting administrative GUID:
 $ ip link show
 ib0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 4092 qdisc mq state UP mode DEFAULT group default qlen 256
 link/infiniband 00:00:00:08:fe:80:00:00:00:00:00:00:52:54:00:c0:fe:12:34:55 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
 vf 0     link/infiniband 00:00:00:08:fe:80:00:00:00:00:00:00:52:54:00:c0:fe:12:34:55 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff,
 spoof checking off, NODE_GUID 00:00:00:00:00:00:00:00, PORT_GUID 00:00:00:00:00:00:00:00, link-state auto, trust off, query_rss off

Then:

 $ ip link set ib0 vf 0 node_guid 11:00:af:21:cb:05:11:00
 $ ip link set ib0 vf 0 port_guid 22:11:af:21:cb:05:11:00

After setting administrative GUID:
 $ ip link show
 ib0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 4092 qdisc mq state UP mode DEFAULT group default qlen 256
 link/infiniband 00:00:00:08:fe:80:00:00:00:00:00:00:52:54:00:c0:fe:12:34:55 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
 vf 0     link/infiniband 00:00:00:08:fe:80:00:00:00:00:00:00:52:54:00:c0:fe:12:34:55 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff,
 spoof checking off, NODE_GUID 11:00:af:21:cb:05:11:00, PORT_GUID 22:11:af:21:cb:05:11:00, link-state auto, trust off, query_rss off

Fixes: 9c0015ef09 ("IB/mlx5: Implement callbacks for getting VFs GUID attributes")
Link: https://lore.kernel.org/r/20200116120048.12744-1-leon@kernel.org
Signed-off-by: Danit Goldberg <danitg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
 		2020-01-25 14:54:39 -04:00
..
bnxt_re Use ODP MRs for kernel ULPs 2020-01-21 09:55:04 -04:00
cxgb4 IB: Allow calls to ib_umem_get from kernel ULPs 2020-01-16 16:14:28 +02:00
efa Use ODP MRs for kernel ULPs 2020-01-21 09:55:04 -04:00
hfi1 Use ODP MRs for kernel ULPs 2020-01-21 09:55:04 -04:00
hns Use ODP MRs for kernel ULPs 2020-01-21 09:55:04 -04:00
i40iw Use ODP MRs for kernel ULPs 2020-01-21 09:55:04 -04:00
mlx4 Use ODP MRs for kernel ULPs 2020-01-21 09:55:04 -04:00
mlx5 IB/mlx5: Return the administrative GUID if exists 2020-01-25 14:54:39 -04:00
mthca IB: Allow calls to ib_umem_get from kernel ULPs 2020-01-16 16:14:28 +02:00
ocrdma IB: Allow calls to ib_umem_get from kernel ULPs 2020-01-16 16:14:28 +02:00
qedr Use ODP MRs for kernel ULPs 2020-01-21 09:55:04 -04:00
qib RDMA/qib: Validate ->show()/store() callbacks before calling them 2019-11-14 11:49:15 -04:00
usnic mm/gup: add make_dirty arg to put_user_pages_dirty_lock() 2019-09-24 15:54:08 -07:00
vmw_pvrdma IB: Allow calls to ib_umem_get from kernel ULPs 2020-01-16 16:14:28 +02:00
Makefile RDMA/iw_cxgb3: Remove the iw_cxgb3 module from kernel 2019-10-04 15:08:59 -03:00