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| author | Jason Gunthorpe <jgg@nvidia.com> | 2020-07-06 20:29:58 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-07-06 20:29:58 +0300 |
| commit | f11f3f76c7264ca6a0b7c495800879e9f73d0bf7 (patch) | |
| tree | c918139a8fd79ea500027b4268adc8f05992ccc4 /drivers/infiniband/ulp/ipoib | |
| parent | d473f4dc2f95c8c856b1659ced3502802b7d2fbe (diff) | |
| parent | 87fb5c1ccb856838f7f75b1cc85ed0691ee8eb79 (diff) | |
| download | linux-f11f3f76c7264ca6a0b7c495800879e9f73d0bf7.tar.xz | |
Merge branch 'mlx5_ipoib_qpn' into rdma.git for-next
Michael Guralnik says:
====================
This series handles IPoIB child interface creation with setting
interface's HW address.
In current implementation, lladdr requested by user is ignored and
overwritten. Child interface gets the same GID as the parent interface and
a QP number which is assigned by the underlying drivers.
In this series we fix this behavior so that user's requested address is
assigned to the newly created interface.
As specific QP number request is not supported for all vendors, QP number
requested by user will still be overwritten when this is not supported.
Behavior of creation of child interfaces through the sysfs mechanism or
without specifying a requested address, stays the same.
====================
Based on the mlx5-next branch at
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
due to dependencies.
* branch 'mlx5_ipoib_qpn':
RDMA/ipoib: Handle user-supplied address when creating child
net/mlx5: Enable QP number request when creating IPoIB underlay QP
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index ef60e8e4ae67..752581a8627b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1892,8 +1892,15 @@ static void ipoib_child_init(struct net_device *ndev) priv->max_ib_mtu = ppriv->max_ib_mtu; set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags); - memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, INFINIBAND_ALEN); - memcpy(&priv->local_gid, &ppriv->local_gid, sizeof(priv->local_gid)); + if (memchr_inv(priv->dev->dev_addr, 0, INFINIBAND_ALEN)) + memcpy(&priv->local_gid, priv->dev->dev_addr + 4, + sizeof(priv->local_gid)); + else { + memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, + INFINIBAND_ALEN); + memcpy(&priv->local_gid, &ppriv->local_gid, + sizeof(priv->local_gid)); + } } static int ipoib_ndo_init(struct net_device *ndev) |